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Biocept

bioc · NASDAQ Healthcare
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FY2022 Annual Report · Biocept
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UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 
 
FORM 10-K 
 
(Mark One) 
 
☒
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the fiscal year ended December 31, 2022
OR 
 
☐
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
FOR THE TRANSITION PERIOD FROM                      TO                      
Commission File Number: 001-36284 
 
Biocept, Inc. 
(Exact name of Registrant as specified in its Charter) 
 
 
Delaware
 
80-0943522
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer

Identification No.)
 
 
9955 Mesa Rim Road, San Diego, California
 
92121
(Address of principal executive offices)
 
(Zip Code)
Registrant’s telephone number, including area code: (858) 320-8200 
Securities registered pursuant to Section 12(b) of the Act: 
 
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, par value $0.0001 per share
BIOC
The Nasdaq Stock Market LLC
Securities registered pursuant to Section 12(g) of the Act: None
 
Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    YES  ☐    NO  ☒ 
Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    YES  ☐    NO  ☒ 
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the 
Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    YES  ☒    NO  ☐ 
Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 
months (or for such shorter period that the Registrant was required to submit such files).    YES  ☒    NO  ☐ 
Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definition of “large accelerated 
filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act: 
 
Large accelerated filer
☐
Accelerated filer
☐
 
 
 
 
Non-accelerated filer
☒  
Smaller reporting company
☒
 
 
 
 
 
 
Emerging growth company
☐
 If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to 
Section 7(a)(2)(B) of the Securities Act.  ☐  
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-
Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☐
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial 
statements.  ☐
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant 
recovery period pursuant to §240.10D-1(b).  ☐
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    YES  ☐    NO  ☒ 
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant, based on the closing price of the shares of common stock on The Nasdaq Stock Market on June 30, 2022, 
was $15,907,495. 
The number of shares of Registrant’s Common Stock outstanding as of  April 13, 2023 was 17,777,185. 
 
 
 

TABLE OF CONTENTS
 
Part I
  
    
 
Item 1
 Business
  
5  
Item 1A
 Risk Factors
  
32  
Item 1B
 Unresolved Staff Comments
  
64  
Item 2
 Properties
  
64  
Item 3
 Legal Proceedings
  
64  
Item 4
 Mine Safety Disclosures
  
64  
 
 
 
Part II
  
  
  
Item 5
 Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
  
65  
Item 6
 [Reserved]
  
65  
Item 7
 Management’s Discussion and Analysis of Financial Condition and Results of Operations
  
66  
Item 7A
 Quantitative and Qualitative Disclosures About Market Risk
  
78  
Item 8
 Financial Statements and Supplementary Data 
  
79  
Item 9
 Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 
  
105  
Item 9A
 Controls and Procedures
  
105  
Item 9B
 Other Information
  
107  
Item 9C
  Disclosure Regarding Foreign Jurisdiction that Prevent Inspections
   
107 
 
 
 
Part III
  
  
  
Item 10
 Directors, Executive Officers and Corporate Governance
  
108  
Item 11
 Executive Compensation 
  
118  
Item 12
 Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 
  
126  
Item 13
 Certain Relationships and Related Transactions, and Director Independence 
  
127  
Item 14
 Principal Accounting Fees and Services
  
128  
 
 
 
Part IV
  
  
  
Item 15
 Exhibits, Financial Statement Schedules
  
130  
Item 16
 Form 10-K Summary
  
133  
 
 
 
Signatures
  
  
134  
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS 
This Annual Report on Form 10-K, or Annual Report, contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, 
as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements included or incorporated by reference in this Annual 
Report other than statements of historical fact, are forward-looking statements. You can identify these and other forward-looking statements by the use of 
words such as “may,” “will,” “could,” “anticipate,” “expect,” “intend,” “believe,” “continue” or the negative of such terms, or other comparable 
terminology. Forward-looking statements also include the assumptions underlying or relating to such statements. In addition, statements that “we believe” 
and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon information available to us as of the date 
of this Annual Report, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, 
and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant 
information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements.
Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth 
below under the caption “Risk Factors” in Part I, Item 1A and “Management’s Discussion and Analysis of Financial Condition and Results of 
Operations” in Part II, Item 7 of this Annual Report and elsewhere in this Annual Report. Moreover, we operate in an evolving environment. New risk 
factors and uncertainties emerge from time to time and it is not possible for us to predict all risk factors and uncertainties, nor can we assess the impact of 
all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in 
any forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements. The forward-looking statements speak 
only as of the date on which they are made and we undertake no obligation to update such statements to reflect events that occur or circumstances that 
exist after the date on which they are made except 
1

as required by law. Readers should, however, review the factors and risks we describe in this Annual Report and in the reports we subsequently file from 
time to time with the Securities and Exchange Commission, or the SEC. 
2

RISK FACTOR SUMMARY
Below is a summary of the material factors that make an investment in our common stock speculative or risky. This summary does not address all of the 
risks that we face. Additional discussion of the risks summarized in this risk factor summary, and other risks that we face, can be found in this Annual 
Report on Form 10-K under the heading “Risk Factors” and should be carefully considered, together with other information in this Annual Report on 
Form 10-K and our other filings with the SEC before making investment decisions regarding our common stock.
•
We are a molecular oncology diagnostics company with a history of net losses; we expect to incur net losses in the future, and we may never 
achieve sustained profitability.
•
We need to raise additional capital to continue as a going concern.
•
If we are unable to increase sales of our current products, assays and services or successfully develop and commercialize other products, assays 
and services, our revenues will be insufficient for us to achieve profitability.
•
If we cannot develop products, assays and services to keep pace with rapid advances in technology, medicine and science, our operating results 
and competitive position could be harmed.
•
If our sole laboratory facility becomes damaged or inoperable, or we are required to vacate the facility, our ability to sell and provide our 
products and diagnostic assays and pursue our research and development efforts may be jeopardized.
•
We expect to continue to incur significant expenses to develop and market products and diagnostic assays, which could make it difficult for us to 
achieve and sustain profitability.
•
Clinical utility studies are important in demonstrating to both customers and payors an assay’s clinical relevance and value. If we are unable to 
identify collaborators willing to work with us to conduct clinical utility studies, or the results of those studies do not demonstrate that an assay 
provides clinically meaningful information and value, commercial adoption of such assay may be slow, which would negatively impact our 
business.
•
The loss of key members of our executive management team could adversely affect our business.
•
There is a scarcity of experienced professionals in our industry. If we are not able to retain and recruit personnel with the requisite skills, we may 
be unable to successfully execute our business strategy.
•
Our failure to attract, hire and retain a sufficient number of qualified sales professionals would hamper our ability to increase demand for our 
products and diagnostic assays, to expand geographically and to successfully commercialize any other products or assays we may develop.
•
We depend on third parties for the supply of samples and other biological materials that we use in our research and development efforts. If the 
costs of such samples and materials increase or our third-party suppliers terminate their relationship with us, our business may be materially 
harmed.
•
We currently rely on third-party suppliers for our specimen collection tubes, or SCTs, shipping kits, and critical materials needed to perform our 
current assays, as well as our planned future products, assays and services, and any problems experienced by them could result in a delay or 
interruption of their supply to us.
•
Our commercial success could be compromised if hospitals or other clients do not pay our invoices or if third-party payors, including managed 
care organizations and Medicare, do not provide coverage and reimbursement, breach, rescind or modify their contracts or reimbursement 
policies or delay payments for our current assays and our planned future assays.
•
Our failure to meet the continued listing requirements of The Nasdaq Capital Market could result in a de-listing of our common stock.
•
We expect to depend on Medicare and a limited number of private payors for a significant portion of our revenues and if these or other payors 
stop providing reimbursement or decrease the amount of reimbursement for our current assays and our planned future assays, our revenues could 
decline.
•
Because of certain Medicare billing policies, we may not receive complete reimbursement for assays provided to Medicare patients. Medicare 
reimbursement revenues are an important component of our business model, and 
3

private payors sometimes look to Medicare determinations when making their own payment determinations; therefore, incomplete or inadequate 
reimbursement from Medicare would negatively affect our business.
•
Long payment cycles of Medicare, Medicaid and/or other third-party payors, or other payment delays, could hurt our cash flows and increase our 
need for working capital.
•
If we were required to conduct additional clinical studies or trials before continuing to offer assays that we have developed or may develop as 
laboratory developed tests, or LDTs, those studies or trials could lead to delays or failure to obtain necessary regulatory approval, which could 
cause significant delays in commercializing any future products and harm our ability to achieve sustained profitability.
•
If we are unable to maintain effective proprietary rights for our products or services, we may not be able to compete effectively in our markets.
•
If we fail to maintain proper and effective internal control over financial reporting, our ability to produce accurate financial statements on a 
timely basis could be impaired and our public reporting may be unreliable.
•
General economic or business conditions may have a negative impact on our business.
4

 
PART I
 
Item 1. Business 
Overview 
We are a molecular oncology diagnostics company that develops and commercializes proprietary clinical diagnostic laboratory assays designed to identify 
rare tumor cells and cell-free tumor DNA from blood and cerebrospinal fluid, or CSF.  The identification of tumor cells and cell-free tumor DNA in CSF 
has become our principal development focus following our early commercial expansion into CSF in 2020. This product was branded and trademarked as 
CNSideTM in April 2021.  
 
The identification of circulating tumor cells, or CTCs, and circulating cell-free tumor DNA and RNA, or ctDNA and ctRNA, derived from solid tumors 
such as breast cancer, lung cancer and melanoma using a standard blood sample has been described as a “liquid biopsy.” This term reflects the ease with 
which peripheral blood can be drawn compared to performing a surgical biopsy, but this technology is not limited to a peripheral blood approach.
 
In January 2020, we adapted and validated our proprietary blood-based liquid biopsy technology for commercial and clinical research use in CSF to 
identify tumor cells that have metastasized to the central nervous system, or CNS, in patients with advanced lung cancer or breast cancer. We have 
subsequently broadened the CNSide indications for use to include all carcinomas and melanomas. CNSide has been designed to improve the clinical 
management of patients with suspected metastatic cancer involving the CNS by enabling the quantitative analysis and molecular characterization of tumor 
cells and ctDNA and ctRNA in the CSF.  Since then, we have worked extensively with leading neuro-oncologists and other cancer experts to further define 
and characterize the use of this unique assay. 
 
The initial disease focus for CNSide is in leptomeningeal metastasis, or LM. LM is a condition in which the primary tumor develops a secondary malignant 
growth in leptomeningeal tissue; that is, two of the three membranes surrounding human brain and spinal cord. These membranes are also known 
specifically as the arachnoid and pia mater. Clinically, this tissue is almost always unobtainable for biopsy purposes and CSF sampling is required for these 
patients. CSF continuously flows between these membranes and is used clinically to diagnose leptomeningeal disease. The incidence of LM among patients 
with solid tumors has risen over the past several decades. Epidemiologic studies suggest that 3-8% of patients with solid tumors will develop LM. 
However, at autopsy, the frequency of LM averages twenty percent and is much higher in some tumor types. The most common solid tumors giving rise to 
LM are breast cancer, lung cancer, melanoma, and gastrointestinal malignancies. Currently the survivability of leptomeningeal disease in solid tumors in 
patients not receiving treatment is measured in weeks.
 
The gold standard for making the diagnosis of LM, is CSF cytology, which has a clinical sensitivity of approximately 50%. As a result, MRI imaging is 
heavily relied upon by oncologists but suffers from a limited specificity of approximately 77%. Additionally, previous attempts to create an MRI-based 
“scorecard” for leptomeningeal disease to assess treatment response/disease progression have had varied success.
 
Given the challenges associated with diagnosing LM and the need for biomarker information to guide therapeutic management, the opportunity for 
advanced technologies to benefit these patients became clear. This is the context under which CNSide has been developed, allowing it to potentially address 
significant unmet medical needs. We summarize the unmet needs for managing metastatic brain cancer patients as follows: Is there tumor (diagnosis)?  Is 
there target (presence of a biomarker to aid treatment selection)?  Is there trend (a response to therapy)?
 
The question “Is there tumor?” is essential for the diagnostic work-up of these patients. Tumor cells in the blood can be shed from either primary or 
metastatic tumors. They can be rapidly removed in the capillary beds of the spleen, liver, kidneys, lungs and other organs, so they are rarely found. 
Conversely, tumor cells in the CSF are the defining feature of leptomeningeal disease. To distinguish tumor cells derived from CSF and from blood we 
often refer to tumor cells in CSF as CSF tumor cells, rather than CTCs.
 
Regarding the second clinical question, “Is there target?” our CNSide assay provides a vehicle for several different diagnostic assay profiles which 
combined with our molecular test menu can identify tumor cell biomarkers that are intended to help physicians make decisions related to the evolution or 
course of metastatic tumor that may inform treatment decisions.  Cancer cells typically acquire genetic alterations which differ from that of normal cells.  
Metastatic cancers often acquire additional genetic alterations which distinguish them from the primary tumor site.  This marked genetic variation between 
areas of tumor 
5

 
growth is termed “genetic heterogeneity,” and findings related to this were featured in our San Antonio Breast Cancer Symposium presentation in 
December 2021 illustrating the value of CNSide in identifying “genetic heterogeneity” of a targetable biomarker called HER2. 
 
Finally, regarding the third clinical question, “Is there trend?” over the past three years, having tested CNSide in more than one thousand patients, we have 
gained considerable experience with detecting CSF tumor cells of patients that have been sampled multiple times over the course of their treatment. The 
association of quantitative CSF tumor cell counts with response to treatment has been noted in both lung and breast cancer, as well as other tumors 
examined. In August 2021, at the Society for Neuro-Oncology (SNO) Brain Metastases meeting, we presented data obtained from a single institution 
showing how serial monitoring of CSF tumor cells by CNSide was used to determine the response to treatment in patients with Non-Small Cell Lung 
Cancer having LM. In addition, in November 2021 at the SNO annual meeting, we presented the early findings of several patients with breast cancer 
having LM which had been followed with multiple CSF samples drawn at different time points throughout each patient's treatment. The downward 
progression of tumor cell counts has been noted by several treating physicians to correlate with response to treatment and resolution of symptoms. Serial 
monitoring of genetic alterations present in CSF tumor cells may create opportunities to change the therapy of certain patients throughout treatment.  These 
observations presented in abstracts and poster presentations in 2021 and 2022 have informed our clinical study strategy which is the basis for our ongoing 
efforts to further explore these observations in a prospective clinical trial.
 
CNSide Description 
 
CNSide encompasses a suite of cellular and molecular technologies intended to aid medical professionals in CSF analysis and CNS disease management in
patients with solid tumors. We currently offer and conduct our commercialized diagnostic assays and offer our clinical trial services at our Clinical 
Laboratory Improvement Amendments of 1988 (CLIA) certified, College of American Pathologists (CAP) accredited and California state-licensed 
laboratory in San Diego, CA. These assays include cell capture and enumeration, immunocytochemistry, fluorescent in situ hybridization (FISH), and next 
generation sequencing (NGS). 
 
CNSide offers several differentiating elements that make it a unique solution for oncologists, including:
 
•
Dual-platform – CNSide offers both cellular and molecular assays under a single consistent protocol, enabling the maximum amount of 
information to be collected from a single specimen. This is crucial when working with a specimen that is challenging to obtain, such as CSF. 
•
CNSide CEE-Sure CSF specimen collection tube – This proprietary specimen collection tube enables up to 4-day shipping of CSF from 
patient care sites to our laboratories in ambient conditions while preserving both cells and nucleic acids for analysis.
•
Unique cell capture – A flagship technology adapted from blood for use in CSF, the CNSide cell capture assay uses a cocktail of different cell 
surface antibodies directed at the tumor cell population of interest. These antibody cocktails facilitate the isolation, enumeration, and 
interrogation of tumor cells in specially configured microfluidic channels. 
•
Quantity and quality – By multiplexing immunocytochemical stains on a captured specimen, CNSide achieves the benefits of a quantitative 
assay (like flow cytometry) while at the same time maintaining the qualitative benefits of a still image. As such, it is possible to perform both 
a cell count and a morphologic study and use this information to layer additional assays into the microfluidic channel. Specifically, CNSide 
uses FISH to evaluate the cytogenetics of the captured population. 
 
As of this filing date, CNSide has been used at 30 of the Nation’s 64 NCI designated cancer centers for a host of primary indications, including breast
cancer, non-small cell lung cancer, small cell lung cancer, melanoma, esophageal cancer, gastric cancer, colorectal cancer, head and neck cancers, ovarian 
cancer, endometrial cancer, renal cancer, bladder cancer, prostate cancer, liver cancer, pancreatic cancer, neuroendocrine cancer, melanoma and others.
6

 
COVID-19 Pandemic Response Summary
In June 2020, to respond to a national public health emergency precipitated by the COVID-19 pandemic, we introduced molecular testing for SARS-CoV2, 
the virus responsible for COVID-19, using a United States Food and Drug Administration, or FDA, Emergency Use Authorization, or EUA, based “RT-
PCR” method developed by Thermo-Fisher.
Since launch of our COVID-19 testing program, we performed more than 1,000,000 assays for patients and customers. We primarily marketed our COVID-
19 testing services to skilled nursing facilities in the western United States and also to certain community colleges within California.
 
Our COVID-19 testing services were responsible for most of our revenues during the years ended December 31, 2022 and 2021. However, as a result of 
increased vaccination and immunization levels, as well as decreased COVID-19 hospitalizations, reported cases and mandatory COVID-19 testing, we 
experienced reduced demand for our COVID-19 testing services throughout 2022. We exited the COVID-19 testing business in February 2023.
Additional Oncology Testing Services
At our corporate headquarters facility located in San Diego, California, we operate a clinical laboratory that is CLIA-certified, CAP accredited and licensed 
by the California Department of Public Health. In this facility we also develop novel assays that are part of our project pipeline for future commercial 
launch and we manufacture our microfluidic channels and various reagents and products used in our testing processes. We also work closely with external 
manufacturers to outsource certain products such as specimen collection tubes and to manufacture items that we may, in the future, outsource to reduce 
costs and improve efficiency. 
The assays we offer and intend to offer are classified as CLIA laboratory developed tests, or LDTs, under CLIA regulations. CLIA certification and state 
licensure in California and certain other states under the supervision of a qualified laboratory medical director is required before any clinical laboratory, 
including ours, may perform testing on human specimens for the purpose of obtaining information for the diagnosis, prevention, or treatment of disease or 
the assessment of health. In addition, we participate in and have received CAP accreditation, which includes rigorous bi-annual laboratory inspections and 
requires adherence to specific quality standards. 
Commercial Strategy
Our primary sales strategy is to engage neuro-oncologists, oncologists and other physicians in the United States at private and group practices, hospitals, 
laboratories and cancer centers to educate them about our unique products and services.  In addition, we market our clinical trial and research services to 
pharmaceutical and biopharmaceutical companies and clinical research organizations.  
Our revenue generating efforts are focused in the following areas: 
•
providing laboratory services to neuro-oncologists, oncologists and other physicians or healthcare providers treating patients with 
neurological cancers who use the CNSide test result data we provide in order to determine the best treatment plan for their patients;
•
providing laboratory services using both our cell capture and enumeration technology and ctDNA assays to help pharmaceutical and 
biopharmaceutical companies run clinical studies establishing the use of novel drug therapies used to treat cancer; and
•
licensing our proprietary technology and selling our distributed products, including our SCTs and potential future assay kits, to partners in the 
United States and abroad.
 
We plan to grow our business by directly offering our CNSide testing services to neuro-oncologists, oncologists and other physicians or heath care 
providers who treat patients with cancer. Based on our product development data, as well as discussions with our key collaborators, we believe that our 
current and planned future assays, particularly those related to CSF, should provide important information and clinical value to physicians. 
 
7

 
We believe our ability to rapidly translate insights about the utility of cytogenetic, immunocytochemical and molecular biomarkers to provide information 
to neuro-oncologists, oncologists and other physicians for treatment decisions in the clinical setting will improve patient treatment and management, and 
that these assays will become a key component of the standard of care for personalized cancer treatment.
 
Provider Agreements 
 
In January 2017, we announced that we had secured an in-network provider agreement with Blue Cross Blue Shield of Texas, the largest provider of health 
benefits in Texas. In addition, we entered into a national master business agreement with the Blue Cross Blue Shield Association, a not-for-profit trade 
association that provides multiple services for its 38-member Blue Cross and Blue Shield health plan companies across the U.S., including forming national 
strategic vendor partnerships. We were selected by the Blue Cross Blue Shield Association based on a rigorous request-for-proposal progress. This 
agreement establishes pricing for our testing services through the Blue Cross Blue Shield Association’s group purchasing organization, CareSource. The 
pricing offered by CareSource group purchasing organization is available to those Blue Cross and Blue Shield member health plans that have, or may seek, 
in-network agreements with us.
 
In July 2022, we signed a new, updated agreement with the BCBS Association, establishing pricing for CNSide, the company's Cerebrospinal Fluid Cell 
Based Assay through their group purchasing organization, Care Source. In September 2022, we executed a new agreement with BCBS of Michigan, the 
first major BCBS plan to cover and reimburse for CNSide. The Blue Care Network is the largest HMO in Michigan. In January 2023, we finalized an 
agreement with Blue Shield of California, serving 4.5 million health plan members and more than 65,000 physicians across the State of California, as well 
as 340 hospitals statewide.
In June 2017, we entered into a participating provider agreement with MediNcrease Health Plans, LLC and a preferred provider agreement with Scripps 
Health Plan Services, Inc., both establishing pricing for our Target Selector liquid biopsy testing service.
 
In December 2017, we signed an agreement with Wellmark, Inc., or Wellmark, the largest health insurer in Iowa and South Dakota. The agreement marked 
our third Blue Cross Blue Shield contract and enabled patients diagnosed with cancer to access our proprietary testing services in-network under their 
Wellmark health plan.
 
In August 2018, we entered into a quality initiative program with Highmark and Alleghany Health Network as a result of the Caresource Workgroup. The 
focus is to improve access to molecular testing to members with a diagnosis of lung cancer.
In July 2019, we announced that we entered into a Laboratory Services Provider Agreement with Beacon Laboratory Benefit Solutions, Inc., a nationally 
recognized premier provider of laboratory benefit management technology solutions to health and managed care companies in the United States.
 
In February 2020, we announced that we entered into an agreement with a California-based independent physician association, or IPA, to provide our 
testing services to physicians and patients in their network.
 
In June 2020, we announced that we entered into a managed care provider agreement with Medical Cost Containment Professional LLC, or MCCP, to 
process out-of-network claims for our Target Selector liquid biopsy testing. MCCP is a reference-based pricing insurance network that includes more than 
150,000 providers nationwide.
 
In September 2020, we announced that Highmark, America’s fourth largest Blue Cross Blue Shield affiliate, has made a positive coverage determination 
that our Target Selector liquid biopsy assay has been accepted for medical coverage for use in the diagnosis and treatment of patients with NSCLC. In 
addition, we announced that we entered into an agreement with Health Net Federal Services LLC to be an in-network provider for Target Selector (Target 
Selector brand has subsequently been replaced by CNSide in the case of CSF-based liquid biopsies) liquid biopsy oncology platform testing for cancer 
patients in the TRICARE West, or TriWest, region network. TriWest provides healthcare services to approximately 3 million members of the U.S. military 
and their families.
 
8

 
In December 2020, we announced entering into laboratory services agreements with two Southern California regional IPAs providing physicians and 
patients in-network access to our testing services. Both IPAs are headquartered in San Diego and combined they serve more than 70,000 covered lives in 
the Southern California region.
 
In March 2022, we entered into a contract with the CA Department of Health Care Services to participate in the State's Medi-Cal Program for low-income 
people.
 
In October 2022, we executed an amended agreement with MultiPlan, Inc., a healthcare cost management solutions company with over 700 payor 
organizations within their network throughout the country. The amended agreement now includes CNSide, our Cerebrospinal Fluid Tumor Cell Based 
Assay at a premium rate of reimbursement. This agreement offers our company access to all 10 of the nation's top 10 healthcare payors (by market share).
 
We are currently contracted with 12 preferred provider organizations and networks, including two national third party payor groups, seven large 
commercial health plans, and six regional independent physician associations.
Market Overview 
Cancer Market Overview 
Despite many advances in the treatment of cancer, it remains one of the greatest areas of unmet medical need. According to the American Cancer Society, 
the incidence of new cancer cases reported in United States was 1.9 million in 2021, with 608,570 people dying from cancer. Additionally, the prevalence 
of people living with cancer in the U.S. was 16,627,949 in 2019 according to the National Cancer Institute. These cancer patients are served by over 13,000 
oncologists who are engaged in patient care as of 2022 according to the American Society for Clinical Oncology.
Brain tumors represent a diverse repertoire of malignancies that remain notoriously difficult to treat as manifested by the unfortunate fact that survival 
beyond two years remains rare.  Cancer in the CNS typically arises from either within the brain tissue itself (primary brain cancer) or from cancer cells that 
have broken off and spread from other primary sites (i.e., metastatic CNS cancer). Brain metastases are responsible for nearly 90% of all brain 
malignancies. 
Metastatic Brain Cancer Overview
Cancer metastasis accounts for 90% of all solid tumor cancer mortality (Taftaf, R. et al. Nature Communications 12, 4867 2021). Metastasis of cancers to 
the CNS (brain and spinal cord) constitutes a major complication of malignant disease, is associated with significant clinical symptoms and poor outcomes, 
and presents significant clinical challenges to physicians responsible for the care of these patients. The increasing frequency of metastatic brain cancer is 
thought to be rising due to longer survival resulting from better cancer diagnosis, improved cancer screening methods, and more effective treatments 
(Karimi et al. Nature Vol 614 2023). 
Wen et al (ONCOLOGY 13(7):961, 1999) estimated that brain metastases will develop in 10% to 30% of adults and 6% to 10% of children with cancer. 
Most frequently, CNS metastasis occurs in tumors of the lung, breast, and melanoma, but also tumors of the gastro-esophageal junction, pancreas, biliary 
system, ovaries and head and neck, amongst many others.  Certain subtypes of these solid tumors, such as triple negative breast cancer, HER2 positive 
breast cancer, small cell lung cancer, EGFR mutated non-small cell lung cancer and invasive BRAF positive melanoma are most likely to reach the CNS 
typically causing significant morbidity and subsequent mortality within a short period of time.
Several types of brain metastasis occur, most typically involving the brain parenchyma and forming a solid lesion that is visible on radiologic studies such 
as MRI.  Other sites of metastasis such as in the leptomeninges, a membranous lining around the brain and spinal cord, are more subtle and difficult to 
diagnose. Leptomeningeal disease is usually diagnosed with a combination of clinical evaluation (symptoms), radiology (MRI or CT) and CSF cytology 
(examination of CSF under the microscope by a pathologist). 
A recently completed large scale, quantitative market research project commissioned by us and conducted by a third-party organization concluded that the 
total addressable market for the CNSide assay is estimated to be $1.2 billion annually in the United States, with a $415.0 million opportunity in LM, and 
$744.0 million in parenchymal brain metastasis. This research included a survey of 150 randomly sampled U.S.-based medical oncologists as well as an 
exhaustive literature review to orthogonally assess the number of patients for whom CNSide would be clinically appropriate. From this effort, we estimated 
the total worldwide addressable market for CNSide is in excess of $2.0 billion, annually.
9

 
Procedural approach to metastatic cancers in the CNS
Our CNSide assay can be performed on a CSF sample obtained either by “lumbar puncture” or via an intraventricular catheter inserted into one of the 
lateral ventricles of the brain.  These catheters are commonly known as an Ommaya reservoir.  
With easy access to the CSF from an Ommaya reservoir, these samples may be obtained many times over the course of a patient’s treatment for LM. 
Innovative methods of treating LM have significantly improved expected survival for many of these patients with survival of a year or more often achieved 
in patients who would otherwise die within a few weeks if untreated.  These may be performed at various times over the course of a patient’s life with 
cancer to help manage these patients.  
Clinical need for CNSide
The challenge of diagnosing LM, selecting an appropriate treatment, and establishing treatment response all can benefit from the identification of tumor 
cells and other biomarkers. Clinical urgency may also require the evaluation of CSF to avoid the need for surgical biopsy. It is often necessary to perform 
repeated sampling of the CSF to establish a diagnosis of metastases due to the use of less sensitive, conventional techniques such as cytology.  At the time 
of progression or recurrence there may be insufficient time and/or an urgent or precarious clinical status which does not favor a surgical approach to obtain 
diagnostic material. Additionally, many studies have shown that cancers frequently mutate during the course of treatment as cancer progresses, so genomic 
information from the initial tumor tissue may not be able to best inform later treatment decisions at the time of metastasis. We believe CNSide can be 
particularly advantageous when the patient has advanced disease and brain metastasis but is not a good candidate for surgery or other invasive diagnostic 
methods such as stereotactic biopsy.
Our Business Strategy 
Our suite of CNSide testing services enables us to provide neuro-oncologists, oncologists and other physicians and health care providers that treat cancer 
with a means to profile and characterize the genomic alterations of their patients’ CNS tumors by analyzing tumor cells and ctDNA found in CSF obtained 
by lumbar puncture or through an Ommaya reservoir, avoiding the need for surgical tissue biopsy or other more inconvenient or invasive methods.  Our 
assays are designed to address three principal clinical questions:
Is there tumor? We believe that our technology, which provides information on the presence of tumor cells in the CSF can be used to diagnose the 
progression of disease, in particular, tumor cells in the CSF can be used to confirm suspected CNS metastasis of carcinomas and melanomas.
Is there target? Our technology can be used to assess molecular biomarkers in CSF tumor cells or ctDNA, that can provide information to physicians to 
help guide the selection of more effective targeted therapies where available.
Is there trend? Our CSF tumor cell assays can be used to follow the response to therapy, by providing a more sensitive and quantitative measure of tumor
burden than other methods such as CSF cytology or radiologic imaging.
Our goal is to become the standard of care for cancer patients with advanced disease and suspected CNS metastasis. Our approach is to develop and 
commercialize CSF tumor cell and ctDNA assays and services that enable us to offer actionable information from a CSF sample for a range of tumor types 
so that oncologists can make treatment decisions which improve patient care. To achieve this, we intend to: 
•
Develop and commercialize a portfolio of proprietary CSF tumor cell enumeration, cellular characterization, and molecular assays that 
enable physicians to personalize cancer treatment. Our biomarker assays are designed to provide a more complete profile of a patient’s 
disease and offer enhanced sensitivity and specificity compared to the current standard of care, based on our initial studies. 
•
Drive the development of clinical evidence to validate the claim that CNSide addresses the significant unmet medical needs of patients 
suffering from metastatic CNS cancer.  Initially, this includes publications and presentations at national meetings where the clinicians and 
scientists that manage these patients gather annually. We have presented 11 such abstracts as of December 31, 2022 at meetings such as the 
Society of Neurooncologists (SNO), the American Academy of Neurology (AAN) and other leading academic gatherings.  We expect that 
these initial abstracts will lead to peer-reviewed publication submissions during calendar year 2023. The resulting peer-reviewed papers 
would be the first such evidence in the peer-reviewed clinical literature supporting use of CNSide in these indications. Our ultimate near-term
aim is to conduct prospective clinical trials that demonstrate the clinical utility of CNSide in managing LM patients. To this end, we have 
initiated the FORESEE clinical study (NCT# 
10

 
05414123). The FORESEE trial is a multi-center prospective clinical trial that has now successfully enrolled its first patient. With the help of 
a leading oncology Clinical Research Organization, we have established the infrastructure for the trial, have opened two sites (one in Los 
Angeles and one in Dallas) and are now in the process of opening at least three additional clinical sites where patients with breast or non-
small cell lung cancer (NSCLC) who have suspicious or confirmed LM will be enrolled.  The FORESEE trial’s primary outcome measure 
will assess the impact of CNSide on treatment decisions. Assuming the results of the trial are favorable, we intend to pursue the inclusion of 
CNSide in the standard National Comprehensive Cancer Network (NCCN) guideline for diagnosis and monitoring of LM disease. 
•
Scale our sales and marketing capabilities in line with our clinical evidence development. At December 31, 2022, we had four sales 
representatives. In early January 2023, we implemented a restructuring plan in an effort to preserve our cash resources that resulted in a 
reduction in our workforce. This reduction in force eliminated our field-based sales force. Once we have adequate resources to do so, we will 
need to hire and develop a field-based sales force to educate physicians directly on the benefits of our assays and the clinical data supporting 
them. In addition, we are actively seeking commercial partnerships that can increase our market reach. 
•
Develop and expand our collaborations with leading university hospitals and research centers. We have collaborated with key thought 
leaders, physicians and clinical researchers across the country, including those at Sarah Cannon Research Institute, University of Colorado, 
Northwestern University Lurie Cancer Center, Stanford University, Penn State University, University of California, San Diego, St John’s 
Cancer Institute at Santa Monica (formerly John Wayne Cancer Institute), Columbia University, Emory University, Johns Hopkins Medical 
Institute, University of Texas Southwestern Medical Center, Yale University, Ohio State University, Vanderbilt University, Georgetown 
University, Dana Farber Cancer Center, MD Anderson Cancer Center, and many others. Our collaborations enable us to conduct Institutional 
Review Board approved clinical studies, test new technologies, validate the effectiveness and utility of our planned future assays in a clinical 
setting and provide us access to clinically well-characterized and highly annotated patient data. These samples and data accelerate our 
validation process and facilitate the testing and refinement of our planned new assays.
•
Become an enabling technology to neuro-oncology directed targeted therapies. Biopharmaceutical companies will increasingly focus on the 
personalized cancer diagnostic as the prevalence of molecularly targeted neuro-oncology therapies approved by the FDA increases, thus 
necessitating the need for companion diagnostics. As targeted therapies move into their next phase, the market is beginning to see next 
generation cancer drugs such as AstraZeneca’s Tagrisso® (Osimertinib) approved for CNS indications.  With these drugs, because of tumor 
heterogeneity, the molecular status of the tumor might change from the original tissue biopsy, so the patient must undergo a re-biopsy 
procedure so the current molecular profile of the patient can be assessed. In many cases, re-biopsy is not medically feasible and CSF-based 
assays that identify molecular targets may offer a more cost effective and safer alternative in this application. Another area of interest for the 
pharmaceutical industry is in immuno-oncology. Immunotherapies help the body counter the cancer cell’s ability to evade the immune 
system. Several protein-based tests have been developed in tissue to work as complimentary or companion diagnostics to these new and 
promising drugs, but the use of these tests will be limited in CNS as a result of limitations with tissue biopsies in the CNS. Our solution is to 
test for these proteins with a CSF liquid biopsy-based test rather than relying on tissue biopsies. 
•
Continue to enhance our current and planned future CNSide assays and reduce the costs associated with providing them through internal 
research and development and partnering with leading technology developers and reagent suppliers. We intend to work closely with select 
key technology developers and suppliers to further automate the optical interpretation of our current assays and our planned additional CSF 
tumor assays, including enumeration, immunocytochemical biomarker staining and FISH. We utilize an automation system that significantly 
reduces the hands-on time of our cytogenetic technologists for microfluidic channel analysis while increasing the uniformity of the data we 
generate. This system is also expected to provide the ability to evaluate multiple fluorescent signals of different wavelengths simultaneously 
for multiplexed analysis, further enhancing efficiency. 
•
We envision building a valuable business franchise with our novel CNS-based diagnostic services by 1) aiding physicians who treat 
neurological cancers to better diagnose and manage their patients, 2) becoming the standard of care for numerous CNS cancer indications, 
and 3) ultimately leveraging these capabilities to enable better diagnosis, therapy selection, and therapy monitoring in other challenging 
cancers and diseases of the CNS.
11

 
Our Competitive Advantages 
We believe that the competitive advantages of our molecular assays, including our assays which are still under development, would include the following. 
•
Our current CNSide assays enable, and we anticipate our planned future CSF based assays will enable, detailed analysis of a patient’s 
cancer utilizing a  CSF sample, facilitating testing at any time, including when a biopsy is not available or inconclusive, offering real-time 
monitoring of the cancer and the response of the cancer therapy, and allowing medical oncologists, neuro-oncologists, radiation oncologists, 
surgical oncologists, pulmonologists, urologists, integrative oncologists, and pathologists and other physicians to select timely modifications 
to treatment regimens. Because the tumor cells and ctDNA, we analyze are derived from the primary tumor or its metastases, they function as 
surrogates for the tumor, with the advantage of being readily accessible in a standard CSF sample. This is especially important in situations 
where a biopsy is not available or advised. The simplicity of obtaining a standard CSF sample permits repeat testing in a monitoring mode to 
detect recurrence or progression and to offer information on treatment modifications based on a current assessment of the cancer’s properties. 
A significant advantage to using our services is the availability of our proprietary CEE-SureÔ CSF specimen collection and transport tube 
(SCT).  The CEE-Sure tube enables 4-day, ambient condition shipping of CSF while maintaining cellular and ctDNA integrity for follow-on 
analysis. This is the enabling technology that provides us the ability to interrogate both tumor cell and ctDNA biomarker targets. We believe 
we are the only company with a validated CSF specimen collection and shipping container for this purpose.
•
Our current CNSide assays provide, and we anticipate our planned future assays will each provide, more information than competitors’ 
existing tests, as a result of being able to provide biomarker results for both ctDNA and CSF tumor cells. We anticipate that such additional 
biomarker information will better enable a physician to develop a personalized patient treatment plan. By including biomarker information in 
our analysis, in addition to tumor cell enumeration, our current assays and our planned future assays are designed to provide a more complete 
profile of a patient’s disease than other existing cell-based or ctDNA only assays. We intend for our assays to contain actionable information 
to assist physicians in selecting appropriate therapies for individual patients.
•
Our current CNSide set of services and our planned future assays are designed to detect and characterize tumor cells in CSF better than 
other existing tests such as CSF cytology and to be applicable to, or quickly modifiable for, a wide range of cancer types. Our antibody 
capture cocktail includes antibodies targeting not only the traditional epithelial CTC capture antigen, or EpCAM, utilized in the CellSearch® 
system and in other platforms, but also other epithelial antigens as well as mesenchymal and cancer stem cell antigens, indicative of cells 
having undergone the epithelial-to-mesenchymal transition. These cells may be more relevant for metastasis. Our detection methods include 
cellular staining for cytokeratin and other protein biomarkers with a broader range of applications than existing CTC tests. We believe that 
through our enhanced capture and staining, more tumor cells in CSF will be identified than by the CSF cytology alone, resulting in fewer 
non-informative cases and more information for physicians.
•
Our current and planned cell capture and ctDNA assays will be flexible and readily configurable to accommodate new biomarkers with 
clinical relevance as they are identified. In theory, our platforms permit essentially any analysis that is currently performed on tumor tissue to 
be performed on CSF tumor cells, including immunocytochemical staining, FISH and molecular analysis. As new therapies are approved, 
and to the extent that they are targeted therapies for which knowledge of a particular gene amplification event, mutation or presence, absence 
or modification, such as phosphorylation, of a protein are indicative of likely response or resistance to that therapy, we will be able to include 
them in our assays with minimal changes. This is attractive to pharmaceutical and biotechnology companies that are developing such 
therapies or seeking ways to make their clinical trials more efficient, as this flexibility enables them to focus on patients more likely to 
respond to a particular therapy and demonstrate a benefit from that therapy. 
•
Collaborative relationships with physicians including key opinion leaders at several nationally recognized health and research institutions 
and other leading strategic partners and accounts.  We have worked closely with dozens of physicians on various collaborative projects in 
different cancer types including breast, NSCLC, prostate, colorectal, ovarian, bladder and endometrial. These projects provide us access to 
leading researchers, clinicians and key opinion leaders, access to valuable patient samples and insight into clinical applications for our assays. 
Some of these projects have resulted in publications in leading journals, such as Cancer Discovery and Cancer Medicine, which enhances our 
standing in the oncology community and supports our marketing efforts. 
12

 
Our Assays, Products and Services 
Assays, Products and Services 
We currently offer and conduct our commercialized diagnostic assays and offer our clinical trial services at our CLIA-certified, CAP-accredited and 
California state-licensed laboratory in San Diego, CA. We have commercialized our CNSide assays for detecting and characterizing many different 
carcinomas (including breast cancer, NSCLC, SCLC, gastric cancer, colorectal cancer, prostate cancer, pancreaticobiliary cancer, and ovarian cancer) and 
melanoma. 
These assays utilize our dual cellular and ctDNA technology platforms and provide biomarker analysis from a patient’s CSF sample. 
Our current assays and clinical trial services include: 
•
CSF tumor cell and ctDNA. After completing testing, we or our partners provide our customers with an easy-to-understand report that 
describes the results of the analyses performed, which is designed to help medical oncologists, neuro-oncologists, surgical oncologists, 
radiation oncologists, urologists, pulmonologists, pathologists and other physicians make better decisions about the treatment of their 
patients.  We introduced a CNSide specific report in 2021 and have improved this to include a serial report feature. Serial reporting enables 
clinicians to follow tumor cell count trends that assist with their assessment of treatment response.
•
Clinical Trial Services. We plan to utilize our clinical laboratory and translational research capabilities to provide clinical trial and research 
services to pharmaceutical companies, biopharmaceutical companies and clinical research organizations to improve the efficiency and 
economic viability of their clinical studies. Our clinical studies and translational research services could leverage our knowledge of capturing 
CSF tumor cells and assaying CSF ctDNA and our ability to develop and implement new cytogenetic, immunocytochemical and molecular 
diagnostic assays. Our current assays can, and our other planned cancer diagnostic assays and biomarker assays are anticipated to be able to, 
help optimize clinical trial patient selection and/or monitor cancer drivers during the course of treatment or disease progression. 
Demonstration of clinical utility of our assays would more easily enable these tests to be adopted in standard clinical practice, helping 
physicians select the most appropriate therapy for their patients. 
 
We analytically validated PD-L1 testing utilizing our cell capture and enumeration technology in 2016. PD-L1 is a biomarker that is informative for 
immuno-oncology therapies currently marketed for lung cancer and melanoma, as well as therapies in development for other tumor types. We collaborated 
with David Rimm, M.D., Ph.D., a pathologist at Yale Medical School and a scientific advisor to us, on the analytical development of this assay.
 
We intend to continue to commercialize CNS focused cancer diagnostic assays in the United States as LDTs performed in our CLIA-certified, CAP-
accredited, and state-licensed laboratory. We plan to evaluate potential opportunities for the commercialization of our products in other countries.
 
13

 
In 2019, we announced the launch of the NGS lung cancer panel and the NGS breast cancer panel using the Thermo Fisher Oncomine platform. These two 
NGS panels are important offerings within our CNSide suite of services.  We intend to gain payment for these assays with Palmetto GBA, LLC, or 
Palmetto, which is contracted with Centers for Medicare & Medicaid Services, or CMS, to administer the Molecular Diagnostic Services, or MolDX, to vet 
new technologies and assays. This means that we must demonstrate to them that our tests are reasonable and necessary for the care of patients diagnosed 
with LM subsequent to a diagnosis of primary NSCLC or breast cancer. This is a major step in gaining reimbursement for a proprietary test, and is a 
necessary step to establish coding and pricing for these services. Once that has been achieved, Noridian Healthcare Solutions, LLC, or Noridian, the 
Medicare carrier for our region, must review and accept the recommendation for payment from Palmetto.  If they agree with the recommendation from 
Palmetto MolDX, then Noridian will adopt the payment and reimbursement recommendation or develop their own, and we can then receive payment from 
Medicare for our NGS panels. We intend to use the same MolDX pathway to gain reimbursement from CMS for the other portions of the CNSide suite of 
services that are not currently reimbursed – namely the cell capture and enumeration aspect of CNSide.
 
In April 2021, we announced the full commercial launch of our branded CNSide cerebrospinal fluid assay to address unmet needs of patients with 
metastatic brain cancer. The CNSide cerebrospinal fluid assay is designed to detect and manage treatment of metastatic cancers involving the CNS.
 
In June 2021, we announced a collaboration with Quest Diagnostics, or Quest to provide laboratory testing services to Quest patients using our Target 
Selector NGS-based liquid biopsy targeted lung cancer panel. Quest is the leading provider of diagnostic information services, including advanced 
diagnostics.  Quest launched the test on December 15, 2021.  We ended this relationship in January 2023 due to lack of orders from Quest.
 
In July 2021, we received a positive final Local Coverage Determination that expands Medicare coverage for use of our Target Selector assay to identify 
the HER2 biomarker from circulating tumor cells. This coverage determination from the CMS MolDX Program was effective July 4, 2021 and continues to 
be an important part of the CNSide suite of services.
Pharmaceutical, Research and Health Economic Collaborations 
In October 2020, we announced results from a prospective study at the International Association for the Study of Lung Cancer (IASLC) comparing our 
CNSide testing service to conventional cytology in patients with NSCLC and LM showing that our CNSide testing may provide a more robust method for 
detecting lung cancer metastasis in CSF than the current standard of cytology analysis.  
14

 
In November 2020 at the SNO annual meeting, we announced results of a study analyzing CSF samples in patients with primary lung or breast cancer with 
either brain or LM disease. The findings indicate that our CNSide assays are a viable and sensitive platform for CSF tumor cell detection and molecular 
analysis compared to the current standard of care, CSF cytology, which is typically used to establish or confirm LM disease when radiological imaging 
findings are suspicious or equivocal. 
In December 2020, we announced results from a prospective study showing our tumor cell capture and enumeration technology - a key component of our 
CNSide suite of services - was highly accurate in monitoring HER2 alterations from blood specimens in patients with metastatic breast cancer. The results 
were featured in a poster presentation at the virtual 2020 SABCS.
In August 2021, in conjunction with the University of Utah, data was presented at the Society for Neuro-oncology (SNO) Brain Metastasis conference 
related to the use of CNSide on 15 unique non-small cell lung cancer cases. 
In November 2021, in conjunction with Northwestern Medicine, Yale School of Medicine, the University of Texas Southwestern, and Barrow Neurological 
institute, data was presented at the SNO annual meeting in Boston on the experience of using CNSide for longitudinal therapy response monitoring in four 
unique breast cancer patients.
In December 2021, in a spotlight poster presentation at the SABCS, we presented our experience with genetic heterogeneity of HER2 in CSF tumor cells 
compared to that in the primary tumor evaluated in patients with breast cancer that had metastasized to the CNS.
In February 2022, at the Molecular TriConference for Precision Medicine in San Diego, we presented a brief summary of our collective experience 
evaluating CSF tumor cells for purposes of evaluating metastatic cancer involving the CNS to determine targets for therapy and quantify the response to 
treatment over time.
In April 2022, in conjunction with Saint John’s Health Center and Pacific Neuroscience Institute, data was presented at American Academy of Neurology 
annual meeting in Seattle on 64 patient specimens from five unique patients comparing tumor cell identification on CSF cytology vs. CNSide throughout 
the course of treatment. 
In June 2022, Columbia University of Irving Medical Center published a prospective study among advanced or metastatic breast cancer patients in Clinical 
Breast Cancer and concluded that CNSide may be a viable platform to detect tumor cells in the CSF with use as a potential diagnostic for LM disease, 
reporting a sensitivity of 100% and a specificity of 83%.
In June 2022 we announced a collaboration with Plus Therapeutics for a multi-year agreement to employ Biocept’s CSF assay CNSide in Plus 
Therapeutics’ ReSPECT-LM Phase 1/2a dose-escalation clinical trial of Rhenium-186 NanoLiposome (186RNL) for the treatment of patients with 
leptomeningeal disease (LM).
In November 2022, in conjunction with 10 leading medical institutions, data was presented at the SNO annual meeting in Tampa regarding the genetic 
heterogeneity of HER2 amplification between the primary site and metastatic cells to the CNS, concluding that 38% of patients that were previously 
categorized as HER2 negative or equivocal demonstrated a population of HER2 amplified cells in their CSF specimen.
 
In November 2022, in conjunction with Saint John’s Health Center and Pacific Neuroscience Institute, data was presented at the SNO annual meeting on 
the cell capture of a primary brain tumor and a pineal tumor using a modified CNSide protocol. We intend to expand our services for CNSide testing to 
include additional tumor types that may benefit from CSF testing. These include tumors for which biopsy and/or resection is severely limited by anatomic 
location, such as those tumors seen arising in the midline of the brain, as well as tumors for which diffuse CSF involvement warrants a significant change 
in medical management, such as medulloblastoma and ependymoma. 
15

 
Laboratory Testing 
From our CLIA-certified laboratory in San Diego, California, we provide test results from our current and planned CNSide assays to medical oncologists, 
neuro-oncologists, surgical oncologists, radiation oncologists, urologists, pulmonologists, pathologists and other physicians in community hospitals, cancer 
centers, group practices and offices. At the federal level, clinical laboratories, such as ours, must be certified under CLIA in order for us to perform testing 
on human specimens. Our laboratory is also accredited by CAP, which is one of six accreditation organizations approved by CMS under CLIA. Our clinical 
laboratory is located in California and we hold the requisite license from the California Department of Public Health to operate our laboratory. In addition, 
we hold licenses issued by the states of Maryland, Pennsylvania and Rhode Island to test specimens from patients in those states or received from ordering 
physicians from those states. In addition, our clinical reference laboratory is required to be licensed on a product-specific basis by New York as an out of 
state laboratory and our products, as LDTs, must be approved by the New York State Department of Health before they are offered in New York. As part of 
this process, the State of New York requires validation of our assays. We currently do not have the necessary New York license, but we are in the process of 
addressing the requirements for licensure in New York. Our lab director holds a New York Certificate of Qualification applicable to the evaluation of tumor 
biomarkers.
Clinical Study Biomarker Testing Services 
Industry research has revealed that many promising drugs have produced disappointing results in clinical trials. For example, a study by Princess Margaret 
Hospital in Toronto estimated that over a five-year study period 85% of the new therapies for solid tumors which were tested in early clinical trials in the 
United States, Europe and Japan failed, and that of those that survive through to Phase III trials, only a third will be approved. Given such a high failure 
rate of oncology drugs in clinical development, combined with constrained budgets for pharmaceutical and biopharmaceutical companies, there is a 
significant need for drug developers to utilize molecular diagnostics to help decrease these failure rates. For specific molecular-targeted therapeutics, the 
identification of appropriate biomarkers may help to optimize clinical trial patient selection and success rates by helping clinicians identify patients that are 
most likely to benefit from a therapy based on their individual genetic profile.
In addition to testing for physicians and their patients, we offer CNSide testing services to help increase the efficiency and economic viability of biomarker 
analysis pertinent to clinical trials conducted by pharmaceutical and biopharmaceutical companies and clinical research organizations focused on cancers of 
the CNS. Our testing services are aimed at developing customizable assays and techniques utilizing CSF cell capture and enumeration and ctDNA 
technologies to provide sensitive, real-time characterization of an individual patient’s tumors using a CSF sample. These assays may be useful as, and 
ultimately developed into, companion diagnostics associated with a specific therapeutic. Additionally, through our services, we may gain further insights 
into biomarkers for disease progression and drug resistance, as well as those associated with current drug development efforts, which we can incorporate 
into assays. To date we have one CNSide biopharmaceutical collaboration, with Plus Therapeutics.
Assay Development Process 
Our CNSide suite of services were, and our planned additional tumor cell capture and enumeration and molecular assays are being, developed and validated 
in conjunction with leading academic and clinical research centers to ensure that the needs of the clinical community are being met with the latest research 
on key biomarkers that affect patient care. We utilize a research and validation process to help ensure that we are providing diagnostic, prognostic and 
predictive information that is clinically relevant and accurate. The timeframe for this process from design through development and market launch is 
dependent upon, among other things, the biomarkers in question having been discovered and validated before we incorporate them in an assay, the specific 
clinical claims we plan to pursue, and the availability of high-quality samples for validation. Our development protocol calls for us to monitor and review 
the process in four stages as detailed below: 
•
Stage 1, Research. We review known, validated biomarkers, preferably associated with a specific therapeutic or other high value treatment 
decision, and discuss with clinical collaborators and key thought leaders to characterize the opportunity, the specific clinical setting and the 
product profile of the candidate assay. 
•
Stage 2, Assay Development. We design the assay, which typically has two parts: efficient capture of tumor cells and/or isolation of ctDNA 
from the targeted cancer type and development of the biomarker assays that will be included. For example, the first part may involve 
modification of the antibody capture cocktail and the second could include development of specific mutation assays or testing of FISH 
probes. Assay development utilizes 
16

 
contrived analytical samples, normal control specimens and ultimately clinical samples to assure performance. The assay development 
process includes defining the performance characteristics of the assay as well as developing standard protocols for our CLIA-certified, CAP 
accredited, and state-licensed laboratory, where the assay will ultimately be performed. This assessment includes such features as accuracy, 
precision (inter-assay, intra-assay, inter-operator, inter-instrument, etc.), sensitivity, and specificity. 
•
Stage 3, Clinical Validation. When the assay is performing as desired it undergoes a rigorous validation process which includes both 
analytical and clinical validation. Clinical accuracy is performed and validated against an orthogonal reference for that biomarker, which is 
typically tumor tissue analysis. Depending on the tumor type and specimen requirement, samples are collected from patients through 
collaborators, or in the case of molecular assays, from commercial sample banks, where clinical information on the patients, including 
outcomes, is already available.  We create standard operating procedures, quality assurance and quality control measures to ensure 
reproducibility and high standards of quality. 
•
Stage 4, Availability for Commercialization. Upon the completion of clinical validation and before launch, we take several steps to prepare 
an assay for marketing as an LDT. We create standard operating procedures and quality assurance and quality control measures to ensure
repeatability and high standards of quality. We train both our commercial and laboratory staff on the interpretation and use of the data. 
Licenses and approvals for our laboratory to perform or use LDTs have been obtained from the appropriate regulatory authorities, such as 
CMS, which oversees CLIA, and different state regulatory bodies. 
 
We currently offer 14 CNSide panels that are available for clinical use that have completed all four stages of the development protocol. Other assays for 
both CSF tumor cells and CSF molecular testing are in earlier stages of development. 
We may be required to seek FDA clearance or approval to expand the commercial use of assays to other laboratories and testing sites in the United States. 
We may also need to complete additional activities to submit each of these assays for regulatory clearance or approval before commercialization in each of 
the international markets where introduction is planned.
If the FDA finalizes its current draft guidance on a risk-based framework for regulation of LDTs, our process would also need to allow for obtaining FDA 
review, clearance or approval, as applicable, which would add delay, expense and risk to our current assay development process. In November 2016, the 
FDA put the process to review and issue this guidance on hold and has not yet provided further information as to when the process will move forward. 
Translational/Clinical Research 
In the course of our research and validation studies, we have processed and analyzed thousands of normal control and cancer patient samples.  Tumor cells 
captured by Biocept’s proprietary cell capture and enumeration system can be analyzed directly within the microfluidic channel, removing the need to re-
deposit cells on a slide and thereby minimizing cell loss or damage. Furthermore, given the transparency of our microfluidic channel, captured cells can be 
immediately analyzed on a microscope. Together, these two important features allow for a very efficient process that is well suited for a LDT performed in 
a CLIA laboratory. The post-capture analyses directed towards evaluation of biomarkers, are particularly important and valuable to physicians and patients 
since they focus on actionable information related to therapy selection. We have performed several clinical research studies in collaboration with The 
University of Texas MD Anderson Cancer Center investigators involving various tumor types, including breast, ovarian, endometrial, lung, colorectal, 
bladder and prostate cancers during the development of our proprietary technology. 
Clinical utility studies, which demonstrate the specific clinical setting in which a particular CNSide assay is used, and how to use the information generated 
for medical, specifically treatment-related, decision making is a key part of our strategy and research and development plan. Data resulting from such 
studies is critical not only in the sales and marketing process, but also for reimbursement, as many health plans and government payors now ask for peer-
reviewed publications describing such studies and results before agreeing to coverage of a specific novel assay. This was a primary impetus for our 
investments in our FORESEE clinical study to evaluate the clinical utility of CNSide.
17

 
Sales and Marketing 
On December 31, 2022, our sales organization consisted of 4 field sales personnel allocated to strategic geographies around the country that have high 
concentrations of cancer patients. In early January 2023 we announced a reduction in force that eliminated our field-based selling organization in an effort 
to conserve our cash resources. Once we have adequate resources to do so, we will need to hire and develop a field-based selling organization. Our sales 
and marketing efforts will be based on a five-part marketing strategy: 
•
work with neuro-oncologists, radiation oncologists, surgical oncologists, other physicians and group practices to educate them on the 
advantages and opportunities that CSF tumor cell and ctDNA assays provide for better information, allowing them to select the most 
appropriate therapy for their patients, and how and when these assays are most effectively used; 
•
build relationships with key opinion leaders in oncology, specifically in the cancer types for which we are offering or plan to offer assays, to 
educate and support oncologists and neuro-oncologists; 
•
collaborate with leading research universities and institutions that enable the validation of our new assays, as well as the generation of 
clinical utility data; 
•
partner with biopharmaceutical and pharmaceutical companies for clinical trial work focusing on CSF tumor cell and ctDNA testing and 
analysis; and 
•
add value for the payor community by delivering clinically actionable information and providing a cost-effective alternative to access 
clinically actionable information using a simple blood or CSF-based test. 
 
We will also take advantage of customary marketing channels commonly used by the diagnostic and pharmaceutical industries, such as medical meetings, 
broad-based publication of our scientific and clinical data, and the internet. In addition, we provide easy-to-access information to our customers through our
website and a data portal for physicians who wish to access test results electronically. Our customers value secure and easily accessible information in order 
to quickly review their patients’ information and begin developing a treatment protocol. 
 
Outside the United States 
 
Outside the United States, where a central laboratory business model is less developed, we will evaluate opportunities with our existing and other partners 
for the conversion and/or development of our current and planned CSF tumor cell and ctDNA assays into test systems or IVDs, and related strategies to 
develop and serve such regional oncology markets. We also plan to sell our clinical trial services to biopharmaceutical companies and research 
organizations outside the United States. 
 
We plan to cooperate with partners on accessing markets internationally. We plan for this to be accomplished either through partnerships with local groups 
and distributors or the development of test kits. 
Competition 
As a cancer diagnostics company focused on current and planned CNSide assays from standard patient CSF samples, we rely extensively on our ability to 
combine novel technology and biomarker information with high-quality, state-of-the art clinical laboratory testing. We believe that we compete principally 
on the basis of: 
•
our ability to utilize standard CSF samples, enabling frequent testing of patients through the course of their disease as well as, without a 
tissue biopsy, thereby reducing cost and trauma, saving time, and providing real-time information on the status of the tumor; 
•
our ability to include biomarker information in our analysis, in addition to CSF tumor cell enumeration, thereby providing a more complete 
profile of a patient’s disease than existing standard of care cytology testing, radiological examinations and evaluation of patient signs and 
symptoms This clinically actionable information can assist physicians in selecting more personalized treatment plans for individual patients; 
•
our current and planned future CNSide service offerings’ ability to capture and detect a broader range of tumor cell phenotypes than existing 
tests, and potentially at earlier stages of disease, resulting in fewer non-informative cases and more information for physicians. For example, 
our antibody capture cocktail targets not only EpCAM 
18

 
but also other epithelial antigens as well as mesenchymal and cancer stem cell antigens, indicative of cells having undergone the epithelial-to-
mesenchymal transition. These cells may be more relevant for metastasis; 
•
our ability to rapidly integrate new biomarkers, either validated in academic laboratories or of interest to pharmaceutical and 
biopharmaceutical companies in the context of their new therapies, into our current and planned future assays, facilitating the expansion of 
actionable information for medical oncologists, neuro-oncologists, surgical oncologists, radiation oncologists, urologists, pulmonologists, 
pathologists and other physicians; and
•
our research and clinical collaborations with key academic and clinical study groups, which enhance our research and development resources 
and, by enhancing our standing in the oncology community, support our marketing efforts.
 
We believe that we compete favorably with respect to these factors that our continued success depends on our ability to: 
•
expand and enhance our current and planned CNSide service offerings to provide clinically meaningful information in additional cancers; 
•
work with clinicians to design and implement clinical studies that demonstrate the clinical utility of our products; 
•
continue to innovate and maintain scientifically advanced technology including development and regulatory approvals; 
•
successfully market and sell assays; 
•
continue to comply with regulatory guidelines and obtain appropriate regulatory approvals in the United States and abroad as applicable; 
•
continue to validate our pipeline of assays; 
•
conduct or collaborate with clinical utility studies to demonstrate the application and medical value of our assays; 
•
continue to seek to obtain positive coverage and reimbursement decisions from Medicare and private third-party payors; 
•
continue to enter into sales and marketing partnerships; 
•
maintain existing and enter into new research and clinical collaborations with key academic and clinical study groups; 
•
continue to attract and retain skilled scientific, clinical, laboratory, sales and marketing personnel; 
•
continue to participate in and gain clinical trial work through biopharma partnerships; 
•
receive payment for the testing we provide for patients; 
•
obtain patents or other protection for our technologies, assays and services; and 
•
obtain and maintain our clinical reference laboratory accreditations and licenses. 
 
Our principal competition comes from established molecular diagnostic clinical testing services and products, used by medical oncologists, neuro-
oncologists, surgical oncologists, radiation oncologists, urologists, pulmonologists, pathologists and other physicians, which are based on tumor tissue 
analysis. It may be difficult to change established clinical practices  and behavior of medical oncologists, neuro-oncologists, surgical oncologists, radiation 
oncologists, urologists, pulmonologists, pathologists, and other physicians to get them to adopt the use of our CNSide suite of services, in their practices in 
conjunction with or instead of molecular diagnostic tests from tissue biopsies or other conventional methodologies including the current standard of care of 
cytology, radiological examination, and clinical evaluation of patient signs and symptoms.
 
CNSide services for CNS oncology applications represent a new area of science and medicine and we cannot predict what products or assays others will 
develop that may compete with or provide results similar or superior to the results we are able to achieve with the products or assays we develop.   
 
We face competition from specialty oncology diagnostic companies that are conducting research and development to develop proprietary CTC or ctDNA 
based assays and assay test panels for use in genomic profiling and monitoring solid tumor cancers. 
19

 
Competitors developing ctDNA based assays and assay panels include but are not limited to companies such as Guardant Health, Foundation Medicine, 
Tempus Laboratories, NeoGenomics, Invitae, Natera, Inivata and Biodesix. EPIC Sciences, Menarini Silicon Biosystems, Biofluidica and Angle PLC offer 
CTC-based assays. These companies, in addition to operating research and development laboratories, have established CLIA-certified testing laboratories 
and have developed  LDTs that they market directly to oncologists and pathologists. A few of these companies, like Guardant Health and Foundation 
Medicine, have achieved FDA clearance for their proprietary laboratory tests.
  
There are a number of national and regional specialty diagnostic companies, such as Caris Life Sciences and CSI, which are focused on the oncology 
diagnostic market, who while not currently offering CTC or ctDNA assays are selling to oncologists and pathologists and could develop or offer ctDNA or 
CTC or assays. In addition, large laboratory services companies such as Quest and LabCorp which provide a broad array of cancer diagnostic assays and 
testing services could also offer CTC or ctDNA based clinical testing services. 
 
There is currently limited competition for our CSF-based tumor cell capture and enumeration and ctDNA assays.  There are no known specialty oncology 
diagnostic companies or large laboratory services companies that offer CSF-based tumor cell capture and enumeration and ctDNA tests for neuro-oncology 
applications as a standard commercial clinical testing service. A few academic based pathology labs such as Memorial Sloan Kettering Cancer Center offer 
CSF-based testing mainly for research purposes. 
 
There are a number of companies which are focused on the oncology diagnostic market, who while not currently offering CTC or ctDNA assays are selling 
to the medical oncologists and pathologists and could develop or offer CTC or ctDNA assays focused on cancers of the CNS. Large laboratory services 
companies such as Quest and LabCorp provide more generalized cancer diagnostic assays and testing but could also offer a CTC or ctDNA assay service. 
Companies like Abbott, Danaher and others could develop equipment or reagents in the future as well. Currently, companies like Streck, Roche and Exact 
Sciences offer SCTs, and in the future, companies like Covidien, Beckton Dickinson, Thermo Fisher, and other large medical device companies may 
develop SCTs as well.
 
There are a number of life science technology companies that are focused on the oncology diagnostic market, such as Thermo Fisher Scientific, Illumina, 
Abbott Molecular, Bio-Rad, Sysmex, Qiagen, and Roche Diagnostics, that are selling equipment and reagents kits for ctDNA assays and assay panels. 
These companies compete with our ctDNA assay kit products and SCTs. Menarini Silicon Biosystems sells equipment and reagents kits for CTC assays. 
These companies market their products to specialty laboratories that offer testing for oncology applications, including national reference laboratories, 
regional laboratories and pathology laboratories that are part of academic medical centers and hospital systems.  These laboratories may purchase these 
products and developed ctDNA and CTC based laboratory developed tests that are marketed to medical oncologists and pathologists that compete with our 
lab services.  
 
Some of our present and potential competitors have widespread brand recognition and substantially greater financial and technical resources and 
development, production and marketing capabilities than we do. Others may develop lower-priced, less complex assays that payors, medical oncologists, 
neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists and other physicians could view as functionally equivalent to our current 
or planned future assays, which could force us to lower the list price of our assays and impact our operating margins and our ability to achieve and maintain 
profitability. In addition, technological innovations that result in the creation of enhanced products or diagnostic tools that are more sensitive or specific or 
offer more content than our tests may enable other clinical laboratories, hospitals, physicians or medical providers to provide specialized products or 
diagnostic assays similar to ours in a more patient-friendly, efficient or cost-effective manner than is currently possible. If we cannot compete successfully 
against current or future competitors, we may be unable to increase or create market acceptance for sales of our current or planned future products or 
assays, which could prevent us from increasing or sustaining our revenues or achieving or sustaining profitability. 
 
We expect that biopharmaceutical companies will increasingly focus resources on development of targeted oncology therapies that may require a 
companion diagnostic test approved by the FDA. We may face increasing competition from companies that offer CTC or ctDNA assays or products that are 
approved by the FDA as an IVD for companion diagnostic uses. 
 
Additionally, projects related to cancer diagnostics and particularly genomics have received increased government funding, both in the United States and 
internationally. As more information regarding cancer genomics becomes available to the public, we anticipate that more products aimed at identifying 
targeted treatment options will be developed and that these products may compete with ours. In addition, competitors may develop their own versions of 
our current or planned future products or assays 
20

 
in countries where we did not apply for patents or where our patents have not issued and compete with us in those countries, including encouraging the use 
of their product or assay by physicians or patients in other countries. 
Third-Party Suppliers and Manufacturers 
Some of the components used in our current or planned future products are currently sourced from a supplier for which alternative suppliers exist, but we 
have not validated the products of such alternative suppliers, and substitutes for these components might not be able to be obtained easily or may require 
substantial design or manufacturing modifications. Any significant problem experienced by any one of our suppliers may result in a delay or interruption in 
the supply of components to us until that supplier cures the problem or an alternative source of the component is located and qualified. Any delay or 
interruption would likely lead to a delay or interruption in our manufacturing operations. The inclusion of substitute components must meet our product 
specifications and could require us to qualify the new supplier with the appropriate government regulatory authorities. 
Patents and Technology 
 
The proprietary nature of, and protection for, our products, services, processes, and know-how are important to our business. Our success depends in part 
on our ability to protect the proprietary nature of our products, services, technology, and know-how, to operate without infringing on the proprietary rights 
of others, and to prevent others from infringing our proprietary rights. We seek patent protection in the United States and internationally for our products, 
services and other technology. Our policy is to patent or in-license the technology, inventions and improvements that we consider important to the 
development of our business. 
 
We also rely on trade secrets, know-how, and continuing innovation to develop and maintain our competitive position. We cannot be certain that patents 
will be granted with respect to any of our pending patent applications or with respect to any patent applications filed by us in the future, nor can we be sure 
that any of our existing patents or any patents granted to us in the future will be commercially useful in protecting our technology. 
 
Our success depends on an intellectual property portfolio that supports our future revenue streams and erects barriers to our competitors. We are
maintaining and building our patent portfolio through filing new patent applications, prosecuting existing applications, and licensing and acquiring new 
patents and patent applications. 
 
We have been issued patents with broad claims covering our CEE-Sure SCT, antibody cocktail approach, microchannel device, CTC detection 
methodologies, and ctDNA analysis. In addition to issued patents in the U.S., we have patents for our proprietary microchannel device in China, Europe, 
Hong Kong, Canada and Japan, and for our antibody cocktail in Australia, Europe, Canada, China, Hong Kong and Japan. Our patent estate continues to 
evolve, and in addition to the broad patent estate around our CTC platform, solidifying our proprietary enrichment methodology for detecting ctDNA with 
very high sensitivity. Our CTC platform patents were filed from 2005 through 2012, and we expect to have patent protection into the 2030s. Our CTC 
patents and applications cover not only cancer as a target, but also prenatal and other rare cells of interest. Recently granted patents in the U.S. cover the 
capture of any target of interest on any solid surface using our antibody capture approach. The patent for our proprietary SCTs expires in 2031, and the 
patents for our ctDNA technology expire in the early 2030s.
 
As of March 1, 2023, we owned 61 issued patents and have 4 patent applications pending. Of these, 14 were issued U.S. patents and three were pending 
patent applications in the U.S., and one was a pending PCT application, while 47 were issued patents in non-U.S. territories. 
Operations and Production Facilities 
Our research and development laboratory, our CLIA-certified, CAP accredited, and state-licensed diagnostic testing laboratory, and our manufacturing 
facility are located in our San Diego, California headquarters. The laboratories employ commercial state-of-the-art equipment as well as custom-made 
components specific to our CTC process that are generated in-house. The manufacturing facility used for the production of our microfluidic channels is a 
Class 10,000 suite in which polydimethylsiloxane, or PDMS, is formed into the base of our proprietary microfluidic channels in a molding process. A glass 
cover slip suitable for optical analysis is added to seal the channels and make them watertight. Plasma activation is utilized to bond the PDMS with other 
functional groups typically leaving an amine functional group for binding. The inside of the microfluidic channels is subsequently chemically derivatized to 
enable the attachment of binding elements that strongly bind 
21

 
to antibody-tagged (fluorescently conjugated) CTCs or CSF tumor cells. Because the microfluidic channels have micrometer dimensions, and we are 
seeking individual cells in a blood sample to interact with the surface of the microfluidic channel, dust particles and other microscopic debris that could 
clog the channel need to be avoided. Humidity is also a factor that affects binding capability especially in the plasma activation step. 
The process of performing our assays is straightforward. When a health care professional takes a standard venous blood sample or a CSF specimen from a 
lumbar puncture or Ommaya reservoir from a patient for CTC, CSF tumor cell, or ctDNA testing, he or she will place the sample in our SCTs, complete a 
requisition form, and package the specimen in our shipping kit for direct shipment to us. Once we receive the specimen at our laboratory and we enter all 
pertinent information about the specimen into our clinical laboratory information system, our laboratory technologists prepare the specimen for processing 
and analysis. Laboratory technologists, including clinical laboratory technologists and clinical laboratory scientists then conduct the analysis, including 
enumeration of tumor cells and biomarker analysis such as FISH. Usage of fluorescent tags enables colored imaging in this process to increase the 
biomarker analysis capability. The data, including images and the processed cells, are sent to our in-house or contracted pathologists or a commercialization 
partner’s pathologists who are experienced in the analysis and evaluation requested by the referring oncologist or pathologist. 
After analysis, our in-house or contracted pathologists or a commercialization partner’s pathologists use laboratory information systems to prepare a 
comprehensive report, which may include selected relevant images associated with the specimen. Our Internet reporting portal allows a referring oncologist 
or pathologist to access his or her patient’s test results in real time in a secure manner that we believe to be compliant with the Health Insurance Portability 
and Accountability Act, or HIPAA, and other applicable standards. The reports are generated in industry standard .pdf formats which allows for high-
definition color images to be reproduced clearly. We send the results to the ordering physician and bill the payor using third-party medical billing software. 
Quality Management Program 
We have established a Quality Management Program for our research, development and CLIA certified testing laboratories. This program is designed to 
help ensure accurate and timely test results, to produce consistent high-quality testing services, as well as procedures which allow for the continual 
improvement of established and new operations. Our Quality Management Program foundation is built upon a rigorous documentation program which 
allows transparent quality assurance and performance improvement plans, necessary to ensure the highest quality of diagnostic testing services. This 
program is designed to satisfy the requirements of local and state licensures, as well as those for accreditation by CAP. The CAP accreditation program 
involves unannounced on-site inspections of our laboratories. CAP is an independent, non-governmental organization of board-certified pathologists that 
accredits laboratories nationwide on a voluntary basis and that has been recognized by the CMS as an accreditation organization to inspect laboratories to 
determine adherence to CLIA standards. 
We are committed to providing reliable and accurate diagnostic testing to our customers. Accurate specimen sample management, timely communication of 
test results, and strict adherence to patient privacy policies are a critical core competency of our company. We monitor and improve our performance 
through our internal audit program, which investigates any abhorrent results, continually track performance indicators, perform internal proficiency testing 
and host external quality audits, primarily conducted by CAP. 
In addition to the compulsory proficiency programs and external inspections required by CMS and other regulatory agencies, we have developed a variety 
of internal systems and procedures to emphasize, monitor and continuously improve the quality of our operations. We maintain internal quality controls by 
routinely processing specimens with known diagnoses in parallel with patient specimens. We also have an internally administered proficiency program for 
specimen testing. 
Third-Party Payor Reimbursement 
Revenues from our clinical laboratory testing are derived from several different sources. Depending on the billing arrangement, instructions of the ordering 
physician and applicable law, parties that reimburse us for our services include: 
•
third-party payors that provide coverage to the patient, such as an insurance company, a managed care organization or a governmental payor 
program; 
•
physicians or other authorized parties, such as hospitals or independent laboratories, that order the testing service or otherwise refer the 
services to us; 
22

 
•
patients in cases where the patient has no insurance, has insurance that partially covers and reimburses the testing, or owes a co-payment, co-
insurance or deductible amount; 
•
collaboration partners; or 
•
biopharmaceutical companies, universities or researchers for clinical trial work. 
 
We are reimbursed for two categories of testing, anatomic pathology, which includes cell staining such as immunocytochemical staining, or ICC, FISH, and 
immunofluorescence, and molecular pathology, which includes mutation analysis. Reimbursement under the Medicare program for the diagnostic services 
that we offer is based on either the Medicare Physician Fee Schedule, or PFS, or the Medicare Clinical Laboratory Fee Schedule, or CLFS, each of which is 
subject to geographic adjustments and is updated annually. Medical services provided to Medicare beneficiaries that require a degree of physician 
supervision, judgment or other physician involvement, such as pathology services, are generally reimbursed under the PFS, whereas clinical diagnostic 
laboratory tests are generally reimbursed under the CLFS. Some of the services that we provide are genetic and molecular testing, which are reimbursed as 
clinical diagnostic laboratory tests.
  
The cell capture and enumeration portion of our CNSide suite of services currently receives little to no reimbursement, depending on the payor and 
circumstances. We intend to gain payment for this aspect of CNSide with Palmetto GBA, LLC, or Palmetto, which is contracted with Centers for Medicare 
& Medicaid Services, or CMS, to administer the Molecular Diagnostic Services, or MolDX, to vet new technologies and assays. This means that we must 
demonstrate to them that our tests are reasonable and necessary for the care of patients diagnosed with LM subsequent to a diagnosis of primary NSCLC or 
breast cancer. This is a major step in gaining reimbursement for a proprietary test, and we and is a necessary step to establish coding and pricing for these 
services.  Once that has been achieved, Noridian Healthcare Solutions, LLC, or Noridian, the Medicare carrier for our region, must review and accept the 
recommendation for payment from Palmetto.  If they agree with the recommendation from Palmetto MolDX, then Noridian will adopt the payment and 
reimbursement recommendation or develop their own, and we can then receive payment from Medicare for our proprietary cell capture and enumeration 
technology.
 
Regardless of the applicable fee schedule, Medicare payment amounts are established for each Current Procedural Terminology, or CPT, code. In addition, 
under the CLFS, Medicare also sets a cap on the amount that it will pay for any individual assay. This cap, usually referred to as the National Limitation 
Amount, is set at a percentage of the median of all the contractor fee schedule amounts for each billing code.
 
Medicare also has policies that may limit when we can bill directly for our services and when we must instead bill another provider, such as a hospital. 
When the testing that we perform is done on a specimen that was collected while the patient was in the hospital, as either an inpatient or outpatient, we may 
be required to bill the hospital for clinical laboratory services and for the technical component of pathology services. Which party is to be billed depends 
primarily on whether the service was ordered at least 14 days after the patient’s discharge from the hospital. Complying with these requirements is complex 
and time-consuming and may affect our ability to collect for our services. In addition, hospitals may refuse to pay our invoices or may demand pricing that 
negatively affects our profit margin. While we await MolDX reimbursement approval for certain aspects of our CNSide suite of services, we may require 
our hospital clients to sign lab service agreements with us so we may bill the hospital directly for portions of our CNSide service offerings which are not 
currently reimbursed.
 
Medicare generally requires a beneficiary to pay a 20% co-insurance amount for most services billed under the PFS. Medicare covers the remaining 80% in 
such circumstances. There is currently no patient co-payment or co-insurance amount applicable to testing billed under the CLFS. Patients often have 
supplemental insurance policies that cover the co-insurance amount for physician services. 
 
Medicare has coverage policies that can be national or regional in scope. Coverage means that assay is approved as a benefit for Medicare beneficiaries. If 
there is no coverage, neither the supplier nor any other party, such as a reference laboratory, may receive reimbursement from Medicare for the service. 
There is currently no national coverage policy regarding the tumor cell capture and enumeration portion of our testing. Because our laboratory is in 
California, the regional Medicare Administrative Contractor, or MAC, for California is the relevant MAC for all our testing. The previous MAC for 
California, Palmetto, which is contracted with CMS to administer the MolDX program that sets guidelines for coding, coverage and reimbursement of 
molecular diagnostic assays, adopted a negative coverage policy for CTC enumeration in blood. The current MAC for California, Noridian Healthcare 
Solutions, LLC, is adopting the coverage policies from Palmetto. Therefore, the enumeration portion of our testing is not currently covered, and we will 
receive no payment from Medicare for this portion of the service unless and until the coverage policy is changed. We continue to receive orders for our 
traditional enumeration testing, which 
23

 
counts disease burden, and therefore the enumeration testing receives no payment from Medicare based upon the existing coverage decision. The Tumor
Cell enumeration counts disease burden, and although oncologists find the information valuable, it does not currently meet many of the medical necessity 
requirements of Medicare and the payors. We intend to pursue payment for the capture portion of our CNSide technology.
 
Reimbursement rates paid by private third-party payors can vary based on whether we are considered to be an “in-network” provider, a participating 
provider, a covered provider, an “out-of-network” provider or a non-participating provider. These definitions can vary among payors, but we are generally
considered an “out-of-network” or non-participating provider by most private third-party payors. An in-network provider usually has a contract with the 
payor or benefits provider. This contract governs, among other things, service-level agreements and reimbursement rates. In certain instances, an insurance 
company may negotiate an in-network rate for our testing. An in-network provider may have rates that are lower per assay than those that are out-of-
network, and that rate can vary widely. The rate varies based on the payor, the testing type and often the specifics of the patient’s insurance plan. If a 
laboratory agrees to contract as an in-network provider, it generally expects to receive quicker payment and access to additional covered patients. 
Billing and Billing Codes for Third-Party Payor Reimbursement 
CPT codes are the main billing code set used by physicians, hospitals, laboratories and other health care professionals to report separately payable clinical 
laboratory and pathology services for reimbursement purposes. The CPT coding system is maintained and updated on an annual basis by the American 
Medical Association. We believe there are existing codes that describe nearly all the steps in our testing process. We currently use a combination of codes 
to bill for our testing and analysis. 
In order to ensure our coding is compliant, we have engaged industry experts to provide guidance on the proper coding of our assays. These experts include 
consultants at Senergene Solutions, LLC, Codemap, LLC and ADVI Health, LLC. However, coding can be complex, and payors may require differing 
codes for a given assay to effect payment. Changes in coding and reimbursement could adversely impact our revenues going forward, or payors could 
request that we reimburse them for payments we have already received. There can be no guarantees that Medicare and other payors will establish new 
positive or adequate coverage policies or reimbursement rates, or not change existing positive coverage policies, in the future. 
We are moving forward with plans to obtain reimbursement coverage for the capture components of our CNSide assays. For other tests, we are able to 
utilize existing CPT codes from the PFS and CLFS. For these established CPT codes (for example, the codes for molecular testing, FISH and ICC), 
positive coverage determinations have been adopted as part of national Medicare policy or under applicable Local Coverage Determinations. Specific codes 
for our assays, however, do not assure an adequate coverage policy or reimbursement rate. Please see the section entitled “Legislative and Regulatory 
Changes Impacting Clinical Laboratory Tests” for further discussion of certain legislative and regulatory changes to these billing codes and the anticipated 
impact on our business. 
Coverage and Reimbursement for our Current Assays and our Planned Future Assays 
Our Medicare Administrative Contractor has issued a negative coverage determination for the enumeration component of all CTC assays. We have received
reimbursement for the enumeration component of our assays from some private payors, including major private third-party payors, based on submission of 
standard CPT codes. FISH, ICC and Molecular Testing CPT codes are the subject of positive coverage national or local Medicare determinations. We 
believe these codes can be used to bill for the analysis components of our current and planned future CSF tumor cell assays, however, CMS, Palmetto or 
Noridian could adopt specific negative coverage policies for CSF tumor cells or ctDNA analysis in the future. 
Additionally, on March 16, 2018 CMS issued a final determination decision memo for Next-Generation Sequencing, or NGS, tests for Medicare 
Beneficiaries with Advanced Cancer (CAG-00450N).  Under this final determination, NGS tests that gain FDA approval or clearance as a companion 
diagnostic will receive coverage, and the final determination of coverage for NGS tests that are LDTs will be left up to the local MAC. Currently, only two 
of our CLIA validated assays are NGS-based; however, we plan to offer additional NGS assays in the future. To gain coverage for those assays, we will 
need to apply to Palmetto, which is the MAC that evaluates and recommends payment coverage or denial for molecular testing in our jurisdiction.
We believe, based on research showing that approximately 54% of new cancers occur in persons age 65 and older and that almost all Americans age 65 and 
older are enrolled in Medicare that a substantial portion of the patients for whom we would expect to perform cancer diagnostic assays will have Medicare 
as their primary medical insurance. We cannot assure you that, even if our current and our planned future assays are otherwise successful, reimbursement 
for the currently Medicare-covered 
24

 
portions of our current and our planned future assays would, without Medicare reimbursement for the enumeration portion, produce sufficient revenues to 
enable us to reach profitability and achieve our other commercial objectives. 
Where there is a private or governmental third-party payor coverage policy in place, we bill the payor and the patient in accordance with the established 
policy. Where there is no coverage policy in place, we pursue reimbursement on a case-by-case basis. Our efforts in obtaining reimbursement based on 
individual claims, including pursuing appeals or reconsiderations of claims denials, could take a substantial amount of time, and bills may not be paid for 
many months, if at all. Furthermore, if a third-party payor denies coverage after final appeal, payment may not be received at all. We are working to 
decrease risks of nonpayment by implementing a revenue cycle management system. 
 
We cannot predict whether, or under what circumstances, payors will reimburse for all components of our assays. Payment amounts can also vary across 
individual policies. Full or partial denial of coverage by payors, or reimbursement at inadequate levels, would have a material adverse impact on our 
business and on market acceptance of our assays. 
Legislative and Regulatory Changes Impacting Clinical Laboratory Tests 
From time to time, Congress has revised the Medicare statute and the formulas it establishes for both the CLFS, and the PFS. Annually, CMS releases the 
payment amounts under the Medicare fee schedules. The rates are important because they not only determine our reimbursement under Medicare, but those 
payment amounts are also often used as a basis for payment amounts set by other governmental and private third-party payors. For example, state Medicaid 
programs are prohibited from paying more than the Medicare fee schedule limit for clinical laboratory services furnished to Medicaid recipients. 
In accordance with Section 1833 (h)(2)(A)(i) of the Social Security Act, the annual update to the CLFS for calendar year 2022 is 5.4% (see 42 
CFR405.509(b)(1)). With respect to our diagnostic services for which we expect to be reimbursed under PFS, CMS issues a Final Rule on an annual basis. 
Since 2015, the PFS Final Rules have included both increases and decreases in certain relative value units and geographic adjustment factors used to 
determine reimbursement for a number of codes used in our current assays and our planned future assays. These codes describe services that we must 
perform in connection with our assays and we bill for these codes in connection with the services that we provide. 
Additionally, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively the ACA, 
enacted in March 2010, made a number of substantial changes in the way health care is financed by both governmental and private insurers.
Although some of these provisions may negatively impact payment rates for clinical laboratory tests, the ACA also extended coverage to over 30 million 
previously uninsured people, which resulted in an increase in the demand for certain diagnostic assays. There have been executive, judicial and 
congressional challenges to certain aspects of the ACA. For example, on June 17, 2021, the U.S. Supreme Court dismissed a challenge on procedural 
grounds that argued the ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress. Further, prior to the U.S. 
Supreme Court ruling, on January 28, 2021, President Biden issued an executive order to initiate a special enrollment period for purposes of obtaining 
health insurance coverage through the ACA marketplace. The executive order also instructs certain governmental agencies to review and reconsider their 
existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that 
include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. In 
addition, on August 16, 2022, President Biden signed the Inflation Reduction Act of 2022, or IRA, into law, which among other things, extends enhanced 
subsidies for individuals purchasing health insurance coverage in ACA marketplaces through plan year 2025. The IRA also eliminates the “donut hole” 
under the Medicare Part D program beginning in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost and creating a new 
manufacturer discount program. It is possible that the ACA will be subject to judicial or congressional challenges in the future. It is unclear how such 
challenges and the healthcare reform measures of the Biden Administration will impact the ACA.
Moreover, other legislative changes have been proposed and adopted since the ACA was enacted. The Protecting Access to Medicare Act of 2014, or 
PAMA, was signed to law, which, among other things, significantly altered the current payment methodology under the CLFS. Under the law, applicable 
clinical laboratories must report laboratory test payment data for each Medicare-covered clinical diagnostic laboratory test that it furnishes during the 
specified time period. The reported data must include the payment rate (reflecting all discounts, rebates, coupons and other price concessions) and the 
volume of each test that was paid by each private payor (including health insurance issuers, group health plans, Medicare Advantage plans and 
25

 
Medicaid managed care organizations). Effective January 1, 2018, the Medicare payment rate for each clinical diagnostic laboratory test is equal to the 
weighted median amount for the test from the most recent data collection period. The payment rate applies to laboratory tests furnished by a hospital 
laboratory if the test is separately paid under the hospital outpatient prospective payment system. PAMA’s reporting obligations began in 2017 and occur 
every three years thereafter (or annually in the case of advanced diagnostic laboratory tests). Reporting of payment data under PAMA for clinical diagnostic 
laboratory tests has been delayed on numerous occasions. Based on current law, between January 1, 2024 and March 31, 2024, applicable laboratories will 
be required to report on data collected during January 1, 2019 and June 30, 2019. This data will be utilized to determine 2025 to 2026 CLFS rates. In 
addition, CMS updated the statutory phase-in provisions such that the rates for clinical diagnostic laboratory tests in 2020 could not be reduced by more 
than 10% of the rates for 2019. Pursuant to the CARES Act, the statutory phase-in of payment reductions has been extended through 2024, with a 0% 
reduction cap for 2021-2023 and a 15% reduction cap for 2024 through 2026. The PAMA rate changes did not materially affect our payments beginning in 
2018; however, we cannot predict how this may affect future payment in coming years. Also, under PAMA, CMS is required to adopt temporary billing 
codes to identify new tests and new advanced diagnostic laboratory tests that have been cleared or approved by the FDA. For an existing test that is cleared 
or approved by the FDA and for which Medicare payment is made as of April 1, 2014, CMS is required to assign a unique billing code if one has not 
already been assigned by the agency. In addition to assigning the code, CMS is required to publicly report payment for the tests. Further, under PAMA, 
CMS is required to adopt temporary billing codes to identify new tests and new advanced diagnostic laboratory tests that have been cleared or approved by 
the FDA. 
Additionally, the Budget Control Act of 2011, among other things, created the Joint Select Committee on Deficit Reduction to recommend proposals in 
spending reductions to Congress. The Joint Select Committee did not achieve its targeted deficit reduction of at least $1.2 trillion for the years 2013 
through 2021, triggering the legislation’s automatic reduction to several government programs. This includes aggregate reductions to Medicare payments to 
providers and suppliers of up to 2% per fiscal year, starting in 2013, and, due to subsequent legislative amendments to the statute, will remain in effect 
through 2031 unless additional congressional action is taken. Under current legislation, the actual reduction in Medicare payments will vary from 1% in 
2022 to up to 4% in the final fiscal year of this sequester. In addition, the Middle-Class Tax Relief and Job Creation Act of 2012, or MCTRJCA, mandated 
an additional change in Medicare reimbursement for clinical laboratory tests. Congress is considering additional health reform measures as part of other 
reform initiatives.
On March 22, 2022, CMS ceased the HRSA COVID-19 Uninsured Program (UIP), which provided federal COVID-19 relief funding for uninsured 
individuals to receive testing and treatment for COVID-19.
Further, with respect to the Medicare program, Congress has proposed on several occasions to impose a 20% coinsurance charge on patients for clinical 
laboratory tests reimbursed under the CLFS, which would require us to bill patients for these amounts. Because of the relatively low reimbursement for 
many clinical laboratory tests, in the event that Congress were to ever enact such legislation, the cost of billing and collecting for these services would often 
exceed the amount actually received from the patient and effectively increase our costs of billing and collecting. 
Some of our Medicare claims may be subject to policies issued by Palmetto and Noridian Healthcare Solutions, our former and current MACs for 
California, respectively. Palmetto has issued a Local Coverage Determination, whereby Palmetto will not cover many molecular diagnostic assays, such as 
the enumeration component of our current assays, unless the test is expressly included in a National Coverage Determination issued by CMS or a Local 
Coverage Determination or coverage article issued by Palmetto. Currently, laboratories may submit coverage determination requests to Palmetto for 
consideration and apply for a unique billing code for each assay (which is a separate process from the coverage determination). In the event that a non-
coverage determination is issued, the laboratory must wait six months following the determination to submit a new request. Palmetto currently has a 
negative coverage determination for the enumeration component of CTC assays, but there is no such negative coverage determination for the analysis 
component of such CTC assays. Denial (or continuation of denial) of coverage for the enumeration component of our current and anticipated tumor cell 
assays by Palmetto or its successor MAC, Noridian Healthcare Solutions, which adopts coverage policies set by the MolDX program, or reimbursement at 
inadequate levels, would have a material adverse impact on our business and on market acceptance of our current assays and our planned future assays. 
Noridian Healthcare Solutions intends to follow, for CTC assays, the positive or negative coverage determinations which from time-to-time Palmetto 
makes as well as any coverage policy changes set by the MolDX program. On November 27, 2013, Palmetto denied our request for coverage for the 
enumeration/detection portion of our testing. We have not received any other indications to suggest that the negative coverage determination will be 
reversed. The Tumor Cell enumeration counts disease burden, and although oncologists find the information valuable, it does not currently meet many of 
the medical necessity requirements of Medicare and the payors. We intend to pursue payment for the capture portion of our CNSide technology.
26

 
Additionally, the Centers for Disease Control and Prevention, CMS and the Office of Civil Rights issued a final rule in February 2014 to amend both the 
HIPAA and CLIA regulations. The final rule amended the HIPAA privacy rule to remove the CLIA laboratory exceptions, and as a result, HIPAA-covered 
laboratories are now required to provide individuals, upon request, with access to their completed test reports. Similarly, the final rule amended CLIA to 
state that CLIA laboratories and CLIA-exempt laboratories may provide copies of the patient’s completed rest reports that, using the laboratory’s 
authentication process, can be identified as belonging to that patient. 
Governmental Regulations 
Clinical Laboratory Improvement Amendments of 1988 and State Regulation 
As a provider of laboratory testing on human specimens for the purpose of diagnosis, prevention, or treatment, we are required to hold certain federal, state 
and local licenses, certifications and permits to conduct our business. In 1988, Congress enacted CLIA, which established quality standards for all 
laboratories providing testing to ensure the accuracy, reliability and timeliness of patient test results regardless of where the test was performed. Our 
laboratory holds a CLIA certificate of accreditation from CAP, and is in good standing. As to state laws, we are required to meet certain laboratory 
licensing and other requirements. Our laboratory holds the required licenses from the applicable state agencies in which we operate. For more information 
on state licensing requirements, see the sections entitled see the section entitled “Governmental Regulations—California State Laboratory Licensing” and 
“Governmental Regulations—Other States’ Laboratory Licensing.” 
Under CLIA, a laboratory is defined as any facility which performs laboratory testing on specimens derived from humans for the purpose of providing 
information for the diagnosis, prevention or treatment of disease, or the impairment of, or assessment of health of human beings. CLIA also requires that 
we hold a certificate applicable to the complexity of the categories of testing we perform and that we comply with certain standards. CLIA further regulates 
virtually all clinical laboratories by requiring they comply with various operational, personnel, facilities administration, quality and proficiency testing 
requirements intended to ensure that their clinical laboratory testing services are accurate, reliable and timely. CLIA certification is also a prerequisite to be 
eligible to be reimbursed for services provided to state and federal health care program beneficiaries. CLIA is user-fee funded. Therefore, all costs of 
administering the program must be covered by the regulated facilities, including certification and survey costs. 
We are subject to survey and inspection every two years to assess compliance with program standards and may be subject to additional unannounced 
inspections. Laboratories performing high-complexity testing are required to meet more stringent requirements than laboratories performing less complex 
tests. In addition, a laboratory like ours that is certified as “high complexity” under CLIA may obtain analyte-specific reagents, which are used to develop 
laboratory developed tests, or LDTs. 
In addition to CLIA requirements, we must comply with the standards set by CAP, which accredits our laboratory. Under CMS requirements, accreditation 
by CAP is sufficient to satisfy the requirements of CLIA. Therefore, because we are accredited by CAP, we are deemed to also comply with CLIA. CLIA 
also provides that a state may adopt laboratory regulations that are more stringent than those under federal law, and certain states have implemented their 
own more stringent laboratory regulatory schemes. 
Federal, State and Foreign Fraud and Abuse Laws 
A variety of federal and state laws prohibit fraud and abuse regarding the preparation and submissions of claims for services as well as avoiding unlawful 
inducements in our relations with those who may refer patients to our laboratory. These laws are interpreted broadly and enforced aggressively by various 
state and federal agencies, including CMS, the Department of Justice, the Office of Inspector General for the U.S. Department of Health and Human 
Services, or HHS, and various state agencies. In addition, the Medicare and Medicaid programs increasingly use a variety of contractors to review claims 
data and to identify improper payments as well as fraud and abuse. These contractors include Recovery Audit Contractors, Medicaid Integrity Contractors 
and Zone Program Integrity Contractors. In addition, CMS conducts Comprehensive Error Rate Testing audits, the purpose of which is to detect improper 
Medicare payments. In addition, many private insurers as well as other managed care organizations have their own internal auditing programs to ensure 
against any false claims being submitted.  Any overpayments identified must be repaid unless a favorable decision is obtained on appeal. In some cases, 
these overpayments can be used as the basis for an extrapolation, by which the error rate is applied to a larger universe of claims, and which can result in 
even higher repayments. 
 
The federal Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting, receiving, or providing remuneration, 
directly or indirectly, to induce or in return for either the referral of an individual, or the 
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furnishing, recommending, or arranging for the purchase, lease or order of any health care item or service reimbursable, in whole or in part, under a federal 
health care program. The definition of “remuneration” has been broadly interpreted to include anything of value, including gifts, discounts, credit 
arrangements, payments of cash, ownership interests and providing anything at less than its fair market value. Recognizing that the federal Anti-Kickback 
Statute is broad and may technically prohibit many innocuous or beneficial arrangements within the health care industry, the Office of Inspector General for 
HHS has issued a series of regulatory “safe harbors.” These safe harbor regulations set forth certain requirements that, if met, will assure immunity from 
prosecution under the federal Anti-Kickback Statute. Although full compliance with these provisions protects against prosecution under the federal Anti-
Kickback Statute, the failure of a transaction or arrangement to fit within a specific safe harbor does not necessarily mean that the transaction or 
arrangement is illegal or that prosecution under the federal Anti-Kickback Statute will be pursued. For further discussion of the impact of federal and state 
health care fraud and abuse laws and regulations on our business, see the section entitled “Risk Factors—Regulatory Risks Relating to Our Business.” We 
are subject to federal and state health care fraud and abuse laws and regulations and could face substantial penalties if we are unable to fully comply with 
such laws. 
In addition, the Health Insurance Portability and Accountability Act of 1996, or HIPAA, also created new federal civil and criminal penalties, regarding 
health care fraud and false statements relating to health care matters. The health care fraud statute prohibits knowingly and willfully executing or 
attempting to execute a scheme to defraud any health care benefit program, including private third-party payors. A violation of this statute is a felony and 
may result in fines, imprisonment or exclusion from federal health care programs, such as the Medicare and Medicaid programs. The false statements 
statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent 
statement in connection with the delivery of or payment for health care benefits, items or services. A violation of this statute is a felony and may result in 
fines, imprisonment or exclusion from federal health care programs. 
Another development affecting the health care industry is the increased enforcement of the federal False Claims Act and, in particular, actions brought 
pursuant to the False Claims Act’s “whistleblower” or “qui tam” provisions. The False Claims Act imposes liability on any person or entity that, among 
other things, knowingly presents, or causes to be presented, a false or fraudulent claim for payment to the federal government. The qui tam provisions of 
the False Claims Act allow a private individual to bring actions on behalf of the federal government and permit such individuals to share in any amounts 
paid by the entity to the government in fines or settlement. In addition, various states have enacted false claim laws analogous to the federal False Claims 
Act, and some of these state laws apply where a claim is submitted to any third-party payor. When an entity is determined to have violated the False Claims 
Act, it may be required to pay up to three times the actual damages sustained by the government, plus significant civil monetary penalties. 
Further, the Eliminating Kickbacks in Recovery Act of 2018, or EKRA, prohibits payments for referrals to recovery homes, clinical treatment facilities, and 
laboratories. EKRA’s reach extends beyond federal health care programs to include private insurance (i.e., it is an “all payor” statute). The full scope of 
such law is uncertain and is subject to a variety of interpretations. 
Additionally, the civil monetary penalties statute imposes penalties against any person or entity that, among other things, is determined to have presented or 
caused to be presented a claim to a federal health program that the person knows or should know is for an item or service that was not provided as claimed 
or is false or fraudulent. 
The federal Physician Payments Sunshine Act requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is 
available under Medicare, Medicaid or the Children’s Health Insurance Program (with certain exceptions) to report annually to CMS, information related to 
payments or other transfers of value made to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), other healthcare 
professionals (such as physicians assistants and nurse practitioners), and teaching hospitals, as well as ownership and investment interests held by 
physicians and their immediate family members. However, at this time, such reporting requirements do not extend to clinical laboratories such as ours.
Also, many states have laws similar to those listed above that may be broader in scope and may apply regardless of payor. 
Additionally, in Europe various countries have adopted anti-bribery laws providing for severe consequences, in the form of criminal penalties and/or 
significant fines for individuals and/or companies committing a bribery offence. Violations of these anti-bribery laws, or allegations of such violations, 
could have a negative impact on our business, results of operations and reputation. For instance, in the United Kingdom, under the Bribery Act 2010, a 
bribery occurs when a person offers, gives or promises to give a financial or other advantage to induce or reward another individual to improperly perform 
certain functions 
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or activities, including any function of a public nature. Bribery of foreign public officials also falls within the scope of the Bribery Act 2010. Under the new 
regime, an individual found in violation of the Bribery Act 2010 faces imprisonment of up to 10 years. In addition, the individual can be subject to an 
unlimited fine, as can commercial organizations for failure to prevent bribery. 
 
Despite our implementation of a robust healthcare compliance program, we may be subject, from time to time, to inspections, investigations, and other 
enforcement actions by governmental authorities. If we are found not to be in compliance with applicable laws or regulations, the applicable governmental 
authority can impose significant civil, criminal and administrative penalties, such as fines, delay, suspend, or revoke regulatory  approvals, institute 
proceedings to recoupment of monies, impose marketing or operating restrictions, enjoin future violations, imprisonment, exclusion from government 
funded healthcare programs such as Medicare and Medicaid, integrity oversight and reporting obligations, and assess similar  significant penalties against 
our officers or employees.
Physician Self-Referral Prohibitions 
Under a federal law directed at “self-referral,” commonly known as the “Stark Law”, there are prohibitions, with certain exceptions, on Medicare and 
Medicaid payments for laboratory tests referred by physicians who personally, or through a family member, have a “financial relationship”—including an 
investment or ownership interest or a compensation arrangement—with the clinical laboratory performing the tests. Several Stark Law exceptions are 
relevant to arrangements involving clinical laboratories, including: (1) fair market value compensation for the provision of items or services; (2) payments 
by physicians to a laboratory for clinical laboratory services; (3) certain space and equipment rental arrangements that satisfy certain requirements, (4) 
personal services arrangements that satisfy certain requirements; and (v) ownership in certain publicly traded companies. The laboratory cannot submit 
claims to the Medicare Part B program for services furnished in violation of the Stark Law, and Medicaid reimbursements may be at risk as well. Penalties 
for violating the Stark Law include significant civil, criminal and administrative penalties, such as the return of funds received for all prohibited referrals, 
fines, civil monetary penalties exclusion from the federal health care programs integrity oversight and reporting obligations, and imprisonment. Many 
states have comparable laws that are not limited to Medicare and Medicaid referrals. 
Corporate Practice of Medicine 
A number of states, including California, do not allow business corporations to employ physicians to provide professional services to patients. This 
prohibition against the “corporate practice of medicine” is aimed at preventing corporations such as us from exercising control over the medical judgments 
or decisions of physicians in treating patients. The state licensure statutes and regulations and agency and court decisions that enumerate the specific 
corporate practice rules vary considerably from state to state and are enforced by both the courts and regulatory authorities, each with broad discretion. If 
regulatory authorities or other parties in any jurisdiction successfully assert that we are engaged in the unauthorized corporate practice of medicine, we 
could be required to restructure our contractual and other arrangements. In addition, violation of these laws may result in significant civil, criminal and 
administrative penalties, such as sanctions imposed against us and/or the professional through licensure proceedings, and exclusion from state and federal 
health care programs. However, it is important to note that laboratories may contract with physicians to act as medical directors for their company as long 
as none of the compensation is for professional services rendered to patients.
Direct Billing Laws and Other State Law Restrictions on Billing for Laboratory Services 
Laws and regulations in certain states prohibit laboratories from billing physicians or other purchasers directly for testing that they order. Some of those 
laws and regulations apply only to anatomic pathology services while others extend to other types of testing. Some states may allow laboratories to bill 
physicians directly but may prohibit the physician (and, in some cases, other purchasers) from charging more than the purchase price for the services (or 
may allow only for the recovery of acquisition costs) or may require disclosure of certain information on the invoice. In some cases, and if not prohibited 
by law or regulation, we may bill physicians, hospitals and other laboratories directly for the services that they order. An increase in the number of states 
that impose similar restrictions could adversely affect us by encouraging physicians to perform laboratory services in-house or by causing physicians to 
refer services to other laboratories that are not subject to the same restrictions. 
CMS promulgated in 2009, a revision to the regulation that prohibits the mark up of purchased diagnostic services 42 C.F.R. §414.50 (the “Anti-Markup 
Rule”). The Anti-Markup Rule prohibits a physician or other supplier from marking up the price paid for the technical or professional component of a 
diagnostic test that was ordered by the billing physician or supplier and which was performed by a physician who does not share a practice with the billing 
physician or supplier. The billing physician 
29

 
is prohibited from billing the Medicare program an amount greater than the lesser of: (i) the performing supplier’s net charge to the billing physician; (ii) 
the billing physician’s actual charge; or (iii) the fee schedule amount for the test that would be allowed if the performing supplier billed directly.
Physician Licensing 
A number of the states where specimens originate require that the physician interpreting those specimens for a primary diagnostic purpose be licensed by 
that particular state. Physicians who fail to comply with these licensure requirements could face fines or other penalties for practicing medicine without a 
license and we could be required to pay those fines on behalf of our pathologists or subject to liability under the federal False Claims Act and similar state 
laws if we bill for services furnished by unlicensed pathologists. We do not believe that the services our pathologists perform in overseeing CLIA 
laboratory operations or releasing results generated by our laboratory on behalf of referring physicians from other states who diagnose and treat patients 
with cancer under their care constitutes the practice of medicine in any state in which our pathologists are not licensed. Our physicians are licensed in the 
state of California where our CLIA laboratory is located and are engaged in the practice of laboratory medicine in California per requirements established 
by the California Department of Health Laboratory Field Services Office and evaluated by the College of American Pathologists, or CAP, which is a 
principal accrediting organization for laboratories around the world.
In addition, many states also prohibit the splitting or sharing of fees between physicians and non-physician entities. We do not believe that our contractual 
arrangements with physicians, physician group practices or hospitals will subject us to claims under such regulations. However, changes in the laws may 
necessitate modifications in our relationships with our clients. 
California State Laboratory Licensing 
Our laboratory is licensed and in good standing under the State of California Department of Public Health standards. Our current licenses permit us to 
receive specimens obtained in California. 
California state laws and regulations also establish standards for the day-to-day operations of clinical laboratories, including physical facility requirements 
and equipment, quality control and proficiency testing requirements. If we are found to be out of compliance with California statutory or regulatory 
standards, we may be subject to suspension, restriction or revocation of our laboratory license or assessed civil money penalties. The operator of a 
noncompliant laboratory may also be found guilty of a misdemeanor under California law. A finding of noncompliance, therefore, may result in harm to 
our business. 
Other States’ Laboratory Licensing 
Several states require the licensure of out-of-state laboratories that accept specimens from those states. We hold licenses from the states of Maryland,
Pennsylvania and Rhode Island to test specimens from patients in those states or received from ordering physicians in those states. We are currently in the 
process of addressing the requirements for licensure in New York. We have engaged and have been in recurring communication with the  New York State 
Department Of Health and we have now received their permission to provide CNSide in the state of New York, beyond the traditional 50-specimen limit,
while we complete the licensing and permit process with them. 
From time to time, other states may require out of state laboratories to obtain licensure in order to accept specimens from such states. If we identify any 
other state with such requirements or if we are contacted by any other state advising us of such requirements, we intend to follow instructions from the state 
regulators as to how we should comply with such requirements. 
U.S. Food and Drug Administration 
We perform our laboratory tests as LDTs. Historically, the FDA has exercised enforcement discretion with respect to most LDTs and has not required 
laboratories that offer LDTs to comply with the agency’s requirements for medical devices (e.g., establishment registration, device listing, quality systems 
regulations, premarket clearance or premarket approval, and post-market controls). In recent years, however, the FDA has stated it intends to end its policy 
of enforcement discretion and regulate certain LDTs as medical devices. To this end, on October 3, 2014, the FDA issued two draft guidance documents, 
entitled “Framework for Regulatory Oversight of Laboratory Developed Tests (LDTs)” and “FDA Notification and Medical Device Reporting for 
Laboratory Developed Tests (LDTs)”, respectively, that set forth a proposed risk-based regulatory framework that would apply varying levels of FDA 
oversight to LDTs. The FDA has indicated that it does not intend to modify its policy 
30

 
of enforcement discretion until the draft guidance documents are finalized. In January 2017, the FDA announced that final guidance on the oversight of 
LDTs would allow for further public discussion. On January 13, 2017, the FDA issued a “Discussion Paper on Laboratory Developed Tests (LDTs),” which 
states that the material in the document does not represent a final version of the LDT draft guidance documents that were published in 2014 or position of 
the FDA; rather, the document is a method to encourage additional dialogue. The timing of when, if at all, the draft guidance documents will be finalized is 
unclear, and even then, the new regulatory requirements are proposed to be phased-in consistent with the schedule set forth in the guidance. Nevertheless, 
the FDA may decide to regulate certain LDTs on a case-by-case basis at any time. LDTs with the same intended use as a cleared or approved companion 
diagnostic are defined in FDA’s draft guidance as “high-risk LDTs (Class III medical devices)” for which premarket review would be first to occur. 
Failure to comply with applicable FDA regulatory requirements may trigger a range of enforcement actions by the FDA including warning letters, civil 
monetary penalties, injunctions, criminal prosecution, recall or seizure, operating restrictions, partial suspension or total shutdown of production, and denial 
of or challenges to applications for clearance or approval, as well as significant adverse publicity. 
Other Regulatory Requirements 
Our laboratory is subject to federal, state and local regulations relating to the handling and disposal of regulated medical waste, hazardous waste and 
biohazardous waste, including chemical, biological agents and compounds, blood and bone marrow samples and other human tissue. Typically, we use 
outside vendors who are contractually obligated to comply with applicable laws and regulations to dispose of such waste. These vendors are licensed or 
otherwise qualified to handle and dispose of such waste. 
The Occupational Safety and Health Administration has established extensive requirements relating to workplace safety for health care employers, 
including requirements to develop and implement programs to protect workers from exposure to blood-borne pathogens by preventing or minimizing any 
exposure through needle stick or similar penetrating injuries. 
Compliance Program
The health care industry is highly regulated and scrutinized with respect to fraud, abusive billing practices and improper financial relationships between 
health care companies and their referral sources. The Office of the Inspector General of HHS, or OIG, has published compliance guidance, including the 
Compliance Program Guidance for Clinical Laboratories in August of 1998, and advisory opinions. The Company has implemented a robust Compliance 
Program, which is overseen by our Board of Directors. Its objective is to ensure compliance with the myriad of federal and state laws, regulations and 
governmental guidance applicable to our business. Our program consists of training/education of employees and monitoring and auditing Company 
practices. The Board of Directors has formed a Compliance Committee of the Board, which meets regularly to discuss all compliance-related issues that 
may affect the Company. The Company reviews its policies and procedures as new regulations and interpretations come to light to comply with applicable 
regulations. The Chief Compliance Officer reports directly to the Board of Directors.
Hotline
As part of its Compliance Program, the Company provides a hotline for employees who wish to anonymously or confidentially report suspected violations 
of our codes of conduct, policies/procedures, or laws and regulations. Employees are strongly encouraged to report any suspected violation if they do not 
feel the problem can be appropriately addressed through the normal chain of command. The hotline does not replace other resources available to our 
employees, including supervisors, managers and human resources staff, but is an alternative channel available. The hotline forwards all reports to the Chief 
Compliance Officer who is responsible for investigating, reporting to the Compliance Committee, and documenting the disposition of each report. The 
Chief Compliance Officer forwards any calls pertaining to the financial statements or financial issues to the Chairman of the Audit Committee. The 
Company does not allow any retaliation against an employee who reports a compliance related issue in good faith.
Confidentiality and Security of Personal Health Information
The Health Insurance Portability and Accountability Act of 1996, as amended (“HIPAA”), contains provisions that protect individually identifiable health 
information from unauthorized use or disclosure by “covered entities,” such as certain healthcare providers, health plans, and healthcare clearinghouses and 
their respective “business associates,” as well as their covered subcontractors, that perform services for them, which involve the creation, receipt, use, 
maintenance, transmission or 
31

 
disclosure of, individually identifiable health information for or on behalf of a covered entity. The Office for Civil Rights of HHS, the agency responsible 
for enforcing HIPAA, has published regulations to address the privacy, or the Privacy Rule, and security, or the Security Rule, of protected health 
information, or PHI. The Company is a covered entity under HIPAA and has adopted policies and procedures to comply with the Privacy Rule and the 
Security Rule and HIPAA. The health care facilities and providers that refer specimens to the Company are also bound by HIPAA.  HIPAA also requires 
that all providers who transmit claims for health care goods or services electronically utilize standard transaction and data sets and use standardized 
national provider identification codes. The Company endeavors to comply with HIPAA regulations, utilizes standard transaction data sets, and has obtained 
and implemented national provider identifiers, or NPIs, as the standard unique health identifier in filing and processing health care claims and other 
transactions.
The American Recovery and Reinvestment Act, or ARRA, enacted the Health Information Technology for Economic and Clinical Health Act of 2009, or 
HITECH, which extends the scope of HIPAA to permit enforcement against business associates for a violation, establishes new requirements to notify the 
Office for Civil Rights of a breach of PHI, and allows the Attorneys General of the states to bring actions to enforce violations of HIPAA. Rules 
implementing various aspects of HIPAA are continuing to be promulgated. With respect to these rules, CMS requires all HIPAA-covered entities such as 
the Company to conduct electronic claim submissions and related electronic transactions under the HIPAA transaction standard called Version 5010.
In addition to the HIPAA Privacy Rule and Security Rule described above, the Company is subject to state laws regarding the handling and disclosure of 
patient records and patient health information. The HIPAA Privacy Rule and Security Rule regulations do not supersede state laws that may be more 
stringent; therefore, we are required to comply with both federal privacy and security regulations and varying state privacy and security laws and 
regulations. These laws vary widely. Penalties for violation include sanctions against a laboratory’s licensure as well as civil or criminal penalties. 
Additionally, private individuals may have a right of action against the Company for a violation of a state’s privacy laws. We endeavor to comply with 
current state laws regarding the confidentiality of health information and will continue to monitor new or changing state laws.
Employees 
As of March 31, 2023 we had a total of 50 full-time employees, four of whom are engaged in full-time research and development activities and four of 
whom hold doctorate degrees, as well as two temporary employees. None of our employees are represented by a labor union. 
Available Information 
Our website address is www.biocept.com. We post links to our website to the following filings as soon as reasonably practicable after they are 
electronically filed with or furnished to the SEC: annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy 
statements, and any amendments to those reports filed or furnished pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended. 
All such filings are available through our website free of charge. The SEC also maintains an internet site at www.sec.gov that contains reports, proxy and 
information statements, and other information regarding issuers that file electronically with the SEC. 
Company Information 
Our principal executive offices and our laboratory operations are located at 9955 Mesa Rim Road, San Diego, California 92121. Our telephone number is 
(858) 320-8200 and our website address is www.biocept.com. The information contained in, or that can be accessed through, our website is not 
incorporated into and is not part of this annual report. We were incorporated in California on May 12, 1997 and reincorporated as a Delaware corporation 
on July 30, 2013.
 
Item 1A. Risk Factors 
An investment in our securities involves a high degree of risk. You should consider carefully the risks described below, together with all of the other 
information included in this Annual Report, as well as in our other filings with the SEC, in evaluating our business. If any of the following risks actually 
occur, our business, financial condition, operating results and future prospects could be materially and adversely affected. In that case, the trading price of 
our common stock may decline and you might lose all or part of your investment. The risks described below are not the only ones we face. Additional risks 
that we currently do not know about or that we currently believe to be immaterial may also impair our business, financial condition, operating 
32

 
results and prospects. Certain statements below are forward-looking statements. For additional information, see the information included under the 
heading “Special Note Regarding Forward-Looking Statements.”
Risks Relating to Our Financial Condition and Capital Requirements 
We are a molecular oncology diagnostics company with a history of net losses; we expect to incur net losses in the future, and we may never achieve 
sustained profitability. 
We have historically incurred substantial net losses, including a net loss of approximately $32.1 million for the year ended December 31, 2022. We
experienced reduced demand for our COVID-19 testing services and stopped offering these services in February 2023. We will continue to incur net losses 
and negative cash flows from operations for the foreseeable future. At December 31, 2022, our accumulated deficit was approximately $298.4 million.
We expect our losses to continue as a result of costs relating to our laboratory operations as well as sales and marketing costs and research and development 
expenses. These losses have had, and will continue to have, an adverse effect on our working capital, total assets and stockholders’ equity. Because of the 
numerous risks and uncertainties associated with our commercialization efforts, we are unable to predict when we will become profitable, and we may 
never become profitable. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our 
inability to achieve and then maintain profitability would negatively affect our business, financial condition, results of operations and cash flows.
We need to raise additional capital to continue as a going concern. 
We expect to continue to incur losses for the foreseeable future and will have to raise additional capital to fund our planned operations and to meet our 
long-term business objectives. We currently expect that our existing resources will only be sufficient to fund our planned operations and expenditures into 
the third quarter of 2023. Management intends to continue its efforts to contain costs and to raise additional capital until we can generate sufficient cash 
from commercial sales to support operations, if ever. Until we can generate significant cash from operations, including product and assay revenues, we 
expect to continue to fund our operations with the proceeds from offerings of our equity securities or debt, or transactions involving product development, 
technology licensing or collaboration. We can provide no assurances that any sources of a sufficient amount of financing will be available to us on 
favorable terms, if at all. General market conditions resulting from high inflation, high interest rates, global supply chain issues, the Russia-Ukraine 
conflict, COVID-19, bank failures, general economic uncertainty and other macroeconomic factors, as well as market conditions affecting companies in the 
life sciences industry in general, may make it difficult for us to obtain financing from the capital markets on attractive terms, or at all. Failure to raise 
additional capital in sufficient amounts when needed would significantly impact our ability to continue as a going concern. The actual amount of funds that 
we will need and the timing of any such investment will be determined by many factors, some of which are beyond our control. To fund our current and
planned operations in the short- and long-term, we may seek to raise additional capital through public or private equity offerings, debt financings, 
borrowings or strategic partnerships coupled with an investment in our company or a combination thereof. If we raise additional funds through the issuance 
of convertible debt securities, or other debt securities, these securities could be secured and could have rights senior to those of our common stock. In 
addition, any new debt incurred by us could impose covenants that restrict our operations. The issuance of any new equity securities will also dilute the 
interest of our current stockholders. Given the risks associated with our business, including our unprofitable operating history and our ability or inability to 
develop additional assays, and the current volatility in the equity markets, additional capital may not be available when needed on acceptable terms, or at 
all. There is no assurance that we will be able to raise adequate funds when needed or on favorable terms. If adequate funds are not available when needed, 
we will need to delay, scale back or discontinue one or more product development programs, curtail our commercialization activities, significantly reduce 
expenses (through reductions in our workforce or otherwise), sell assets (potentially at a discount to their fair value or carrying value), enter into 
relationships with third parties to develop or commercialize products or technologies that we otherwise would have sought to develop or commercialize 
independently, pursue an acquisition of our company at a price that may result in a significant loss on investment to our stockholders, file for bankruptcy, 
seek other protection from creditors, or liquidate all of our assets.
We expect to continue to incur significant expenses to develop and market products and diagnostic assays, which could make it difficult for us to 
achieve and sustain profitability. 
33

 
In recent years, we have incurred significant costs in connection with the development of our products and diagnostic assays. For the years ended 
December 31, 2022 and 2021, our research and development expenses were $6.2 million and $5.0 million, respectively, and our sales and marketing 
expenses were $7.1 million and $8.3 million, respectively. We expect our expenses to be significantly more than our revenues for the foreseeable future and 
increase as we conduct studies of our current products, assays and services and our planned future products, assays and services, establish our sales and 
marketing organization, drive adoption of and reimbursement for our products and diagnostic assays and develop new products, assays and services. As a 
result, we will need to generate significant revenues in order to achieve sustained profitability. 
We may undertake internal restructuring activities in the future that could result in disruptions to our business or otherwise materially harm our 
results of operations or financial condition.
From time to time we may undertake internal restructuring activities as we continue to evaluate and attempt to optimize our cost and operating structure in 
light of developments in our financial condition, business strategy and long-term operating plans. For example, we completed a reduction in our workforce 
in the first quarter of 2023, including our entire field-based salesforce. Subject to obtaining sufficient funding, we plan to hire and develop a field-based 
sales organization in the future as part of our long-term business strategy. 
Any restructuring activities we undertake in the future may result in write-offs or other restructuring charges. There can be no assurance that any 
restructuring activities that we have undertaken or undertake in the future will achieve the cost savings, operating efficiencies or other benefits that we may 
initially expect. Restructuring activities may also result in a loss of continuity, accumulated knowledge and inefficiency during transitional periods and 
thereafter. In addition, internal restructurings can require a significant amount of time and focus from management and other employees, which may divert 
attention from commercial operations. If any internal restructuring activities we have undertaken or undertake in the future fail to achieve some or all of the 
expected benefits therefrom, our business, results of operations and financial condition could be materially and adversely affected.
Risks Relating to Our Business and Strategy 
If we are unable to increase sales of our current products, assays and services or successfully develop and commercialize other products, assays and 
services, our revenues will be insufficient for us to achieve profitability. 
We currently derive substantially all our revenues from sales of diagnostic assays. We began offering our assays through our Clinical Laboratory 
Improvement Amendments of 1988, or CLIA, certified CAP accredited, and state-licensed laboratory in 2014. Additionally, the sale of our proprietary 
SCTs commenced in June 2018, which allow for the intact transport of liquid biopsy samples for research use only, or RUO, from regions around the 
world. We are in varying stages of research and development for other products and diagnostic assays that we may offer. If we are unable to increase sales 
of our existing products and diagnostic assays or successfully develop and commercialize other products and diagnostic assays, we will not produce 
sufficient revenues to become profitable.
If we are unable to execute our sales and marketing strategy for our products and diagnostic assays and are unable to gain acceptance in the market, 
we may be unable to generate sufficient revenue to sustain our business. 
We are an early-stage molecular oncology diagnostics company and have engaged in only limited sales and marketing activities for the diagnostic assays
we currently offer through our CLIA-certified, CAP accredited, and state-licensed laboratory. Except for net income generated in the first quarter of 2021 
as a result of our COVID-19 testing business, which we discontinued in February 2023, our revenue has been insufficient to fund operations.
Although we believe that our current assays and our planned future assays, our molecular kits as well as our blood and viral collection tube product, 
represent a promising commercial opportunity, our products or assays may never gain significant acceptance in the marketplace and therefore may never 
generate substantial revenue or profits for us. We will need to establish a market for our products and diagnostic assays and build that market through 
physician education, awareness programs and the publication of clinical trial results. Gaining acceptance in medical communities requires, among other 
things, publications in leading peer-reviewed journals of results from studies using our current products, assays and services and/or our planned future 
products, assays and services. The process of publication in leading medical journals is subject to a peer review process and peer reviewers may not 
consider the results of our studies sufficiently novel or worthy of publication. Failure to have our 
34

 
studies published in peer-reviewed journals would limit the adoption of our current products, assays and services and our planned future products, assays 
and services. 
Our ability to successfully market the products and diagnostic assays that we have developed, and may develop in the future, will depend on numerous 
factors, including: 
•
the success of our FORESEE clinical study to evaluate the clinical utility of CNSide in LM patients, and our ability to conduct clinical utility studies 
of CNSide or other assays in collaboration with key thought leaders to demonstrate their use and value in important medical decisions such as 
treatment selection; 
•
whether CNSide is included in NCCN treatment guidelines;
•
whether private health insurers, government health programs and other third-party payors will adopt liquid biopsy-based assays, including CNSide, 
in their guidelines, or cover such diagnostic assays and, if so, whether they will adequately reimburse us.
•
whether our partners vigorously support our offerings; 
•
whether healthcare providers believe such diagnostic assays provide clinical utility; 
•
whether the medical community accepts that such diagnostic assays are sufficiently sensitive and specific to be meaningful in-patient care and 
treatment decisions; 
•
our ability to continually source raw materials, SCTs, shipping kits and other products that we sell or consume in our manufacturing process that are 
of sufficient quality and supply;
•
our ability to successfully hire and develop a field-based sales force in the future, and the success of any such sales force; and 
•
our ability to fund sales and marketing activities. 
Failure to achieve widespread market acceptance of our current products, assays and services, as well as our planned future products, assays and services, 
would materially harm our business, financial condition and results of operations. 
If we cannot develop products, assays and services to keep pace with rapid advances in technology, medicine and science, our operating results and 
competitive position could be harmed. 
In recent years, there have been numerous advances in technologies relating to the diagnosis and treatment of cancer. Several new cancer drugs have been 
approved, and a number of new drugs in clinical development may increase patient survival time. There have also been advances in methods used to 
identify patients likely to benefit from these drugs based on analysis of biomarkers. We must continuously develop new products and diagnostic assays and 
enhance any existing products, assays and services to keep pace with evolving standards of care. Our current products, assays and services and our planned 
future products, assays and services could become obsolete unless we continually innovate and expand them to demonstrate benefit in the diagnosis, 
monitoring or prognosis of patients with neurological metastatic cancer. New cancer therapies typically have only a few years of clinical data associated 
with them, which limits our ability to develop products and diagnostic assays based on, for example, biomarker analysis related to the appearance or 
development of resistance to those therapies. If we cannot adequately demonstrate the applicability of our current products, assays and services and our 
planned future products, assays and services to new treatments, by incorporating important biomarker analysis, sales of our products, assays and services 
could decline, which would have a material adverse effect on our business, financial condition and results of operations.
If our current products, assays and services and our planned future products, assays and services do not continue to perform as expected, our operating 
results, reputation and business will suffer. 
Our success depends on the market’s confidence that we can continue to provide reliable, high-quality products and assay results. We believe that our 
customers are likely to be particularly sensitive to product or assay defects and errors. As a result, the failure of our current or planned future products or 
assays to perform as expected, including with respect to our ability to maintain the sensitivity, specificity, concordance or reproducibility of such assays, 
would significantly impair our reputation and the public image of our products and cancer assays, and we may be subject to legal claims arising from any 
defects or errors. This could also impact our ability to get paid or the amount we are paid.
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If our sole laboratory facility becomes damaged or inoperable, or we are required to vacate the facility, our ability to sell and provide our products and 
diagnostic assays and pursue our research and development efforts may be jeopardized. 
We currently derive our revenues from our diagnostic assays conducted in our CLIA-certified, CAP accredited, and state-licensed laboratory. We do not 
have any clinical reference laboratory facilities other than our facility in San Diego, California. Our facilities and equipment could be harmed or rendered 
inoperable by natural or man-made disasters, including fire, earthquake, flooding and power outages, which may render it difficult or impossible for us to 
sell our products or perform our diagnostic assays for some period of time. The inability to sell our current or planned future products, or to perform our 
current assays and our planned future assays, or the backlog of assays that could develop if our facility is inoperable for even a short period of time, may 
result in the loss of customers or harm to our reputation or relationships with scientific or clinical collaborators, and we may be unable to regain those 
customers or repair our reputation in the future. Furthermore, our facilities and the equipment we use to perform our research and development work could 
be costly and time-consuming to repair or replace.
The San Diego area periodically experiences serious fires and power outages and is considered to lie in an area with earthquake risk.
Additionally, a key component of our research and development process involves using biological samples as the basis for our diagnostic assay 
development. In some cases, these samples are difficult to obtain. If the parts of our current or future laboratory facility where we store these biological 
samples were damaged or compromised, our ability to pursue our research and development projects, as well as our reputation, could be jeopardized. We 
carry insurance for damage to our property and the disruption of our business, but this insurance may not be sufficient to cover all of our potential losses 
and may not continue to be available to us on acceptable terms, if at all.
Further, if our current or future CLIA-certified, CAP accredited, and state-licensed laboratory becomes inoperable or unqualified in any way we may not be 
able to license or transfer our technology to another facility with the necessary qualifications, including state licensure and CLIA certification, under the 
scope of which our current assays and our planned future assays could be performed. Even if we find a facility with such qualifications to perform our 
assays, it may not be available to us on commercially reasonable terms.
Our business is subject to risks arising from pandemic and epidemic diseases
A pandemic or other public health epidemic, poses the risk that we or our employees, contractors, suppliers, courier delivery services and other partners 
may be prevented from conducting business activities for an indefinite period of time, including due to spread of the disease within these groups or due to 
shutdowns that may be requested or mandated by governmental authorities. The continued spread of an infectious disease and the measures taken by state 
and local governments could disrupt the supply chain of material needed for our assays, interrupt our ability to receive samples, impair our ability to 
perform or deliver the results from our tests, impede patient movement or interrupt healthcare services causing a decrease in test volumes, delay coverage 
decisions from Medicare and third party payors, delay ongoing and planned clinical trials involving our tests and have a material adverse effect on our 
business, financial condition and results of operations.  The COVID-19 pandemic previously resulted in a number of restrictions to reduce the spread of the 
disease, including executive orders in California, and several other state and local orders across the country, which, among other things, directed individuals 
to shelter at their places of residence, directed schools, businesses and governmental agencies to cease non-essential operations at physical locations, 
prohibited certain non-essential gatherings, and ordered cessation of non-essential travel. The effects of state and local stay-at-home orders may disrupt our 
business and delay our development programs and regulatory timelines and negatively impact our commercial activities, the magnitude of which will 
depend, in part, on the length and severity of the restrictions and other limitations on our ability to conduct our business in the ordinary course. These and 
similar, and perhaps more severe, disruptions in our operations due to a resurgence of COVID-19 or another health epidemic or pandemic could negatively 
impact our business, operating results and financial condition. 
If we cannot compete successfully with our competitors, we may be unable to increase or sustain our revenues or achieve and sustain profitability. 
Our principal competition comes from established molecular diagnostic clinical testing services and products, used by medical oncologists, neuro-
oncologists, surgical oncologists, radiation oncologists, pulmonologists, pathologists and other physicians, which are based on tumor tissue analysis. It may 
be difficult to change established clinical practices and behavior of medical 
36

 
oncologists, neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists and other physicians to get them to adopt the use of our CSF-
based tumor cell and ctDNA assays, in their practices in conjunction with current standard of care.
Liquid biopsy molecular tests based on tumor cell and ctDNA assays for oncology applications represent a new area of science and medicine and we cannot 
predict what products or assays others will develop that may compete with or provide results similar or superior to the results we are able to achieve with 
the products or assays we develop.
We face competition from specialty oncology diagnostic companies that are conducting research and development to develop proprietary CTC or ctDNA 
based assays and assay test panels for use in genomic profiling and monitoring solid tumor cancers. Competitors developing ctDNA based assays and assay 
panels include but are not limited to companies such as Guardant Health, Foundation Medicine, Tempus Laboratories, NeoGenomics, Invitae, Natera, 
Inivata and Biodesix. EPIC Sciences, Menarini Silicon Biosystems and Angle PLC offer CTC-based assays. These companies, in addition to operating 
research and development laboratories, have established CLIA-certified testing laboratories and have developed LDT (lab developed tests) that they market 
directly to oncologists and pathologists. A few of these companies, like Guardant Health, have achieved FDA clearance for their proprietary laboratory 
tests.
There are several national and regional specialty diagnostic companies, such as Caris Life Sciences and CSI, which are focused on the oncology diagnostic 
market, who while not currently offering CTC or ctDNA assays are selling to oncologists and pathologists and could develop or offer ctDNA or CTC or 
assays. In addition, large laboratory services companies such as Quest and LabCorp which provide a broad array of cancer diagnostic assays and testing 
services could also offer CTC or ctDNA based clinical testing services.
Another new area of science and medicine is tumor cell and ctDNA assays performed from CSF samples for neuro-oncology applications and there is 
currently limited competition for our CSF-based tumor cell and ctDNA assays. There are no known specialty oncology diagnostic companies or large 
laboratory services companies that offer CSF-based tumor cell and ctDNA tests for neuro-oncology applications as a standard commercial clinical testing 
service. A few academic based pathology labs such as Memorial Sloan Kettering Cancer Center offer CSF-based testing mainly for research and internal 
purposes.
Companies like Abbott, Danaher and others could develop equipment or reagents in the future as well. Currently, companies like Streck, Roche and Exact 
Sciences offer SCTs, and in the future, companies like Covidien, Beckton Dickinson, Thermo Fisher, and other large medical device companies may 
develop SCTs as well. 
There are a number of life science technology companies that are focused on the oncology diagnostic market, such as Thermo Fisher Scientific, Illumina, 
Abbott Molecular, Bio-Rad, Sysmex, Qiagen, and Roche Diagnostics, that are selling equipment and reagents kits for ctDNA assays and assay panels. 
These companies compete with our ctDNA assay kit products and SCTs. Menarini Silicon Biosystems sells equipment and reagents kits for CTC assays. 
These companies market their products to specialty laboratories that offer molecular based testing for oncology applications, including national reference 
laboratory, regional laboratories and pathology laboratories that are part of academic medical centers and hospital systems. These laboratories may 
purchase these products and developed ctDNA and CTC based laboratory developed tests that are marketed to medical oncologists and pathologists that 
compete with our lab services.
Some of our present and potential competitors have widespread brand recognition and substantially greater financial and technical resources and 
development, production and marketing capabilities than we do. Others may develop lower-priced, less complex assays that payors, medical oncologists, 
neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists and other physicians could view as functionally equivalent to our current 
or planned future assays, which could force us to lower the list price of our assays and impact our operating margins and our ability to achieve and maintain 
profitability. In addition, technological innovations that result in the creation of enhanced products or diagnostic tools that are more sensitive or specific or 
offer more content than ours may enable other clinical laboratories, hospitals, physicians or medical providers to provide specialized products or diagnostic 
assays similar to ours in a more patient-friendly, efficient or cost-effective manner than is currently possible. If we cannot compete successfully against 
current or future competitors, we may be unable to increase or create market acceptance and sales of our current or planned future products or assays, 
which could prevent us from increasing or sustaining our revenues or achieving or sustaining profitability.
 
We expect that biopharmaceutical companies will increasingly focus resources on development of targeted oncology therapies that may require a 
companion diagnostics test approved by the FDA. Biocept may face increasing competition from 
37

 
companies that offer CTC or ctDNA assays or products that are approved by the FDA as an IVD for companion diagnostic uses.
 
Additionally, projects related to cancer diagnostics and particularly genomics have received increased government funding, both in the United States and 
internationally. As more information regarding cancer genomics becomes available to the public, we anticipate that more products aimed at identifying 
targeted treatment options will be developed and that these products may compete with ours. In addition, competitors may develop their own versions of 
our current or planned future products or assays in countries where we did not apply for patents or where our patents have not issued and compete with us 
in those countries, including encouraging the use of their product or assay by physicians or patients in other countries.
If medical oncologists, neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists and other physicians decide not to order our 
current or planned future assays, or if laboratory supply distributors or their customers decide not to order our current or planned future products, we 
may be unable to generate sufficient revenue to sustain our business. 
To generate demand for our current products, assays and services and our planned future products, assays and services, we will need to hire and develop a 
field-based sales organization to educate medical oncologists, neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists, and other 
physicians and other health care professionals, as well as laboratory and medical equipment suppliers, on the clinical utility, benefits and value of the 
products, assays and services we provide through published papers, presentations at scientific conferences, educational programs and one-on-one education 
sessions by members of our sales force. In addition, we need to educate medical oncologists, neuro-oncologists, surgical oncologists, urologists, 
pulmonologists, pathologists and other physicians of our ability to obtain and maintain coverage and adequate reimbursement from third-party payors. We 
will need to hire additional commercial, scientific, technical and other personnel to support this process. Unless an adequate number of medical
practitioners order our current assays and our planned future assays, or unless an adequate number of laboratory supply distributors order our current and 
planned future products, we will likely be unable to create demand in sufficient volume for us to achieve sustained profitability.
Clinical utility studies are important in demonstrating to both customers and payors an assay’s clinical relevance and value. If we are unable to identify 
collaborators willing to work with us to conduct clinical utility studies, or the results of those studies do not demonstrate that an assay provides 
clinically meaningful information and value, commercial adoption of such assay may be slow, which would negatively impact our business. 
Clinical utility studies, including the FORESEE trial for CNSide, show when and how to use a clinical test or assay and describe the particular clinical 
situations or settings in which it can be applied and the expected results. Clinical utility studies also show the impact of the test or assay results on patient 
care and management. Clinical utility studies are typically performed with collaborating oncologists or other physicians at medical centers and hospitals, 
analogous to a clinical trial, and generally result in peer-reviewed publications. Sales and marketing representatives use these publications to demonstrate to 
customers how to use a clinical test or assay, as well as why they should use it. These publications are also used with payors to obtain coverage for a test or 
assay, helping to assure there is appropriate reimbursement. 
We need to conduct additional studies for our assays, increase assay adoption in the marketplace and obtain coverage and adequate reimbursement. Should 
we not be able to perform these studies, or should their results not provide clinically meaningful data and value for medical oncologists, neuro-oncologists, 
surgical oncologists, urologists, pulmonologists, pathologists and other physicians, adoption of our assays could be impaired, and we may not be able to 
obtain coverage and adequate reimbursement for them.
The loss of key members of our executive management team could adversely affect our business. 
Our success in implementing our business strategy depends largely on the skills, experience and performance of key members of our executive 
management team and others in key management positions. The collective efforts of each member of the executive team and others working with them as a 
team are critical to us as we continue to develop our technologies, products, services, assays and research and development and sales programs. As a result 
of the difficulty in locating qualified new management, the loss or incapacity of existing members of our executive management team could adversely 
affect our operations. If we were to lose one or more of these key employees, we could experience difficulties in finding qualified successors, competing 
effectively, developing our technologies and implementing our business strategy. Our executive management team each have employment agreements, 
however, the existence of an employment agreement does not guarantee 
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retention of members of our executive management team and we may not be able to retain those individuals for the duration of or beyond the end of their 
respective terms. We do not maintain “key person” life insurance on any of our employees. 
In addition, we rely on collaborators, consultants and advisors, including scientific and clinical advisors, to assist us in formulating our research and 
development and commercialization strategy. Our collaborators, consultants and advisors are generally employed by employers other than us and may have 
commitments under agreements with other entities that may limit their availability to us. 
The loss of a key employee, the failure of a key employee to perform in his or her current position or our inability to attract and retain skilled employees 
could result in our inability to continue to grow our business or to implement our business strategy. 
There is a scarcity of experienced professionals in our industry. If we are not able to retain and recruit personnel with the requisite technical skills, we 
may be unable to successfully execute our business strategy. 
The specialized nature of our industry results in an inherent scarcity of experienced personnel in the field. Our future success depends upon our ability to 
attract and retain highly skilled personnel, including scientific, technical, commercial, business, regulatory and administrative personnel, necessary to 
support our anticipated growth, develop our business and perform certain contractual obligations. Given the scarcity of professionals with the scientific 
knowledge that we require and the competition for qualified personnel among life science businesses, we may not succeed in attracting or retaining the 
personnel we require to continue and grow our operations. 
Our failure to obtain sufficient funding and to attract, hire and retain a sufficient number of qualified sales professionals would hamper our ability to 
increase demand for our products and diagnostic assays, to expand geographically and to successfully commercialize any other products or assays we 
may develop. 
To succeed in selling our products and diagnostic assays and any other products or assays that we develop, we intend to hire and develop a U.S. based field-
based sales organization in the future, subject to obtaining sufficient funding to do so. We will seek to recruit sales representatives with extensive 
experience in oncology and established relationships with medical oncologists, neuro-oncologists, surgical oncologists, urologists, pulmonologists, 
pathologists, oncology nurses, and other physicians and hospital personnel, as well as laboratory supply distributors. To achieve our marketing and sales 
goals, we will need to build and develop a sales and commercial infrastructure. Sales professionals with the necessary technical and business qualifications 
are in high demand, and there is a risk that we may be unable to attract, hire and retain the number of sales professionals with the right qualifications, 
scientific backgrounds and relationships with decision-makers at potential customers needed to achieve our sales goals. We expect to face competition from 
other companies in our industry, some of whom are much larger than us and who can pay greater compensation and benefits than we can, in seeking to 
attract and retain qualified sales and marketing employees. If we are unable to hire and retain qualified sales and marketing personnel, our business will 
suffer. 
Our dependence on commercialization partners for sales of products, assays and services could limit our success in realizing revenue growth. 
We may seek to grow our business through the use of commercialization partners for the sales, marketing and commercialization of our current products, 
assays and services, as well as our planned future products, assays and services, and to do so we must enter into agreements with these partners to sell, 
market or commercialize our products, assays and services. These agreements may contain exclusivity provisions and generally cannot be terminated 
without cause during the term of the agreement. We may need to attract additional partners to expand the markets in which we sell products or assays. 
These partners may not commit the necessary resources to market and sell our products and diagnostics assays to the level of our expectations, and we may 
be unable to locate suitable alternatives should we terminate our agreement with such partners or if such partners terminate their agreement with us. 
If future commercialization partners do not perform adequately, or we are unable to locate commercialization partners, we may not realize revenue growth. 
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We depend on third parties for the supply of samples and other biological materials that we use in our research and development efforts. If the costs of 
such samples and materials increase or our third-party suppliers terminate their relationship with us, our business may be materially harmed. 
We have relationships with suppliers and institutions that provide us with samples and other biological materials that we use in developing and validating 
our current assays and our planned future assays. If one or more suppliers terminate their relationship with us or are unable to meet our requirements for 
samples, we will need to identify other third parties to provide us with blood samples and biological materials, which could result in a delay in our research 
and development activities and negatively affect our business. In addition, as we grow, our research and academic institution collaborators may seek 
additional financial contributions from us, which may negatively affect our results of operations. To the extent that the third parties supplying us with 
samples or other biological materials are impacted by COVID-19 or another health epidemic or pandemic or supply chain issues, our costs and availability 
of such supplies may be impacted.
We currently rely on third-party suppliers for our SCTs, shipping kits, and critical materials needed to perform our current assays, as well as our 
planned future products, assays and services, and any problems experienced by them could result in a delay or interruption of their supply to us. 
We currently purchase our SCTs and raw materials for our microfluidic channels and assay reagents under purchase orders and do not have long-term 
contracts with most of the suppliers of these materials. If suppliers were to delay or stop producing our SCTs, shipping kits, materials or reagents, or if the 
prices they charge us were to increase significantly, or if they elected not to sell to us, we would need to identify other suppliers. We could experience 
delays in obtaining SCTs and shipping kits, manufacturing the microfluidic channels, or performing assays while finding another acceptable supplier, 
which could impact our results of operations. The changes could also result in increased costs associated with qualifying the new SCTs, shipping kits, 
materials or reagents and in increased operating costs. Further, any prolonged disruption in a supplier’s operations could have a significant negative impact 
on our ability to perform diagnostic assays in a timely manner and sell our products. If our third-party suppliers’ operations are impacted by COVID-19 or 
another health epidemic or pandemic or supply chain issues, we may experience supply delays or interruptions.
 
Some of the components used in our current or planned future products are currently sourced from a supplier for which alternative suppliers exist but we 
have not validated the products of such alternative suppliers, and substitutes for these components might not be able to be obtained easily or may require 
substantial design or manufacturing modifications. Any significant problem experienced by any one of our suppliers may result in a delay or interruption in 
the supply of components to us until that supplier cures the problem or an alternative source of the component is located and qualified. Any delay or 
interruption would likely lead to a delay or interruption in our manufacturing operations or product sales. The inclusion of substitute components must meet 
our product specifications and could require us to qualify the new supplier with the appropriate government regulatory authorities. 
If we were sued for product liability or professional liability, we could face substantial liabilities that exceed our resources. 
The marketing, sale and use of our products and current assays, as well our planned future products, assays and services, could lead to the filing of product 
liability claims against us if someone alleges that our products or assays failed to perform as designed. We may also be subject to liability for errors in the 
assay results we provide to physicians or for a misunderstanding of, or inappropriate reliance upon, the information we provide. A product liability or 
professional liability claim could result in substantial damages and be costly and time-consuming for us to defend. 
Our insurance may not fully protect us from the financial impact of defending against product liability or professional liability claims. Any product liability 
or professional liability claim brought against us, with or without merit, could increase our insurance rates or prevent us from securing insurance coverage 
in the future. Additionally, any product liability lawsuit could damage our reputation, result in the recall of products or assays, or cause current partners to 
terminate existing agreements and potential partners to seek other partners, any of which could impact our results of operations. 
If we use biological and hazardous materials in a manner that causes injury, we could be liable for damages. 
Our activities currently require the controlled use of potentially harmful biological materials and chemicals. We cannot eliminate the risk of accidental 
contamination or injury to employees or third parties from the use, storage, handling or disposal of these materials. In the event of contamination or injury, 
we could be held liable for any resulting damages, and any liability 
40

 
could exceed our resources or any applicable insurance coverage we may have. Additionally, we are subject to, on an ongoing basis, federal, state and local 
laws and regulations governing the use, storage, handling and disposal of these materials and specified waste products. The cost of compliance with these 
laws and regulations may become significant and could have a material adverse effect on our financial condition, results of operations and cash flows. In 
the event of an accident or if we otherwise fail to comply with applicable regulations, we could lose our permits or approvals or be held liable for damages 
or penalized with fines. 
We may acquire other businesses or form joint ventures or make investments in other companies or technologies that could harm our operating results, 
dilute our stockholders’ ownership, increase our debt or cause us to incur significant expense. 
As part of our business strategy, we may pursue acquisitions of businesses and assets. We also may pursue strategic alliances and joint ventures that 
leverage our core technology and industry experience to expand our offerings or distribution. We have no experience with acquiring other companies and 
limited experience with forming strategic alliances and joint ventures. We may not be able to find suitable partners or acquisition candidates, and we may 
not be able to complete such transactions on favorable terms, if at all. If we make any acquisitions, we may not be able to integrate these acquisitions 
successfully into our existing business, and we could assume unknown or contingent liabilities. Any future acquisitions also could result in significant 
write-offs or the incurrence of debt and contingent liabilities, any of which could have a material adverse effect on our financial condition, results of 
operations and cash flows. Integration of an acquired company also may disrupt ongoing operations and require management resources that would 
otherwise focus on developing our existing business. We may experience losses related to investments in other companies, which could have a material 
negative effect on our results of operations. We may not identify or complete these transactions in a timely manner, on a cost-effective basis, or at all, and 
we may not realize the anticipated benefits of any acquisition, technology license, strategic alliance or joint venture. 
To finance any acquisitions or joint ventures, we may choose to issue shares of our common stock as consideration, which would dilute the ownership of 
our stockholders. If the price of our common stock is low or volatile, we may not be able to acquire other companies or fund a joint venture project using 
our stock as consideration. Alternatively, it may be necessary for us to raise additional funds for acquisitions through public or private financings. 
Additional funds may not be available on terms that are favorable to us, or at all. 
.
 
If we cannot support demand for our current products, assays and services, as well as our planned future products, assays and services, including 
successfully managing the evolution of our laboratory service, our business could suffer. 
As our product and assay volume grows, we will need to increase our assay capacity, implement automation, increase our scale and related processing, 
customer service, billing, collection and systems process improvements and expand our internal quality assurance program and technology to support 
assays on a larger scale. Examples of challenges we may face include, but are not limited to, maintaining the same validated sensitivity in our assays for 
both CTC and ctDNA analysis as our assay volume increases. We will also need additional clinical laboratory scientists and other scientific and technical 
personnel to process these additional assays. Any increases in scale, related improvements and quality assurance may not be successfully implemented and 
appropriate personnel may not be available. As additional products, assays and services are commercialized, we may need to bring new equipment online, 
implement new systems, technology, controls and procedures and hire personnel with different qualifications. Failure to implement or maintain necessary 
procedures or to hire the necessary personnel could result in a higher cost of processing or an inability to meet market demand. We cannot assure you that 
we will be able to perform assays on a timely basis, or procure SCTs, shipping kits or other materials we sell, at a level consistent with demand, that our 
efforts to scale our commercial operations will not negatively affect the quality of our assay results, or that we will respond successfully to the growing
complexity of our operations. If we encounter difficulty meeting market demand or quality standards for our current products, assays and services and our 
planned future products, assays and services, including with respect to our assays our ability to maintain the sensitivity, specificity, concordance and 
reproducibility of such assays, our reputation could be harmed, and our future prospects and business could suffer, which may have a material adverse 
effect on our financial condition, results of operations and cash flows. 
Billing for our diagnostic assays is complex, and we must dedicate substantial time and resources to the billing process to be paid. 
Billing for clinical laboratory assay services is complex, time-consuming and expensive. Depending on the billing arrangement and applicable law, we bill 
various payors, including Medicare, insurance companies and patients, all of which have different 
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billing requirements. We generally bill third-party payors for our diagnostic assays and pursue reimbursement on a case-by-case basis where pricing 
contracts are not in place. To the extent laws or contracts require us to bill patient co-payments or co-insurance, we must also comply with these 
requirements. We may also face increased risk in our collection efforts, including potential write-offs of doubtful accounts and long collection cycles, 
which could adversely affect our business, results of operations and financial condition. 
Several factors make the billing process complex, including: 
•
differences between the list price for our assays and the reimbursement rates of payors; 
•
compliance with complex federal and state regulations related to billing Medicare; 
•
risk of government audits related to billing Medicare; 
•
disputes among payors as to which party is responsible for payment; 
•
differences in coverage and in information and billing requirements among payors, including the need for prior authorization and/or advanced 
notification; 
•
the effect of patient co-payments or co-insurance; 
•
changes to billing codes and/or coverage policies that apply to our assays; 
•
incorrect or missing billing information; and 
•
the resources required to manage the billing and claims appeals process. 
We use standard industry billing codes, known as Current Procedural Terminology, or CPT, codes, to bill for our diagnostic assays. These codes can change 
over time. When codes change, there is a risk of an error being made in the claim adjudication process. These errors can occur with claims submission, 
third-party transmission or in the processing of the claim by the payor. Claim adjudication errors may result in a delay in payment processing or a reduction 
in the amount of the payment received. Coding changes, therefore, may have an adverse effect on our revenues. There can be no assurance that payors will 
recognize these codes in a timely manner or that the process of transitioning to such a code and updating their billing systems and ours will not result in 
errors, delays in payments and a related increase in accounts receivable balances. 
As we introduce new assays, we will need to add new codes to our billing process as well as our financial reporting systems. Failure or delays in effecting 
these changes in external billing and internal systems and processes could negatively affect our collection rates, revenue and cost of collecting. 
Additionally, our billing activities require us to implement compliance procedures and oversight, train and monitor our employees, challenge coverage and 
payment denials, assist patients in appealing claims, and undertake internal audits to evaluate compliance with applicable laws and regulations as well as 
internal compliance policies and procedures. Payors also conduct external audits to evaluate payments, which add further complexity to the billing process. 
If the payor makes an overpayment determination, there is a risk that we may be required to return some portion of prior payments we have received. These 
billing complexities, and the related uncertainty in obtaining payment for our assays, could negatively affect our revenue and cash flow, our ability to 
achieve profitability, and the consistency and comparability of our results of operations. 
We rely on third-party billing provider software, and an in-house billing function, to transmit claims to payors, and any delay in transmitting claims 
could have an adverse effect on our revenue. 
While we manage the overall processing of claims, we rely on third-party billing provider software to transmit the actual claims to payors based on the 
specific payor billing format. We have previously experienced delays in claims processing when our third-party provider made changes to its invoicing 
system. Additionally, coding for diagnostic assays may change, and such changes may cause short-term billing errors that may take significant time to 
resolve. If claims are not submitted to payors on a timely basis or are erroneously submitted, or if we are required to switch to a different software provider 
to handle claim submissions, we may experience delays in our ability to process these claims and receipt of payments from payors, or possibly denial of 
claims for lack of timely submission, which would have an adverse effect on our revenue and our business. 
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We may encounter manufacturing problems or delays that could result in lost revenue. 
We currently manufacture our proprietary microfluidic channels at our San Diego facility and intend to continue to do so. We believe we currently have 
adequate manufacturing capacity for our microfluidic channels. If demand for our current products, assays and services and our planned future products, 
assays and services increases significantly, we will need to either expand our manufacturing capabilities or outsource to other manufacturers. If we or third-
party manufacturers engaged by us fail to manufacture and deliver our microfluidic channels or certain reagents in a timely manner, our relationships with 
our customers could be seriously harmed. We cannot assure you that manufacturing, or quality control problems will not arise as we attempt to increase the 
production of our microfluidic channels or reagents or that we can increase our manufacturing capabilities and maintain quality control in a timely manner 
or at commercially reasonable costs. If we cannot manufacture our microfluidic channels consistently on a timely basis because of these or other factors, it 
could have a significant negative impact on our ability to perform assays and generate revenues. We may encounter supply chain constraints in obtaining 
the raw materials needed to manufacture our products for a variety of reasons, including events outside of our control such as COVID-19, or another health 
epidemic or pandemic and geopolitical events.
International expansion of our business would expose us to business, regulatory, political, operational, financial and economic risks associated with 
doing business outside of the United States. 
As part of our long-term business strategy, we may pursue international expansion, including partnering with academic and commercial testing laboratories, 
and introducing our technology outside the United States as part of in vitro diagnostic, or IVD, test kits and/or testing systems utilizing our technologies. 
Doing business internationally involves a number of risks, including: 
•
multiple, conflicting and changing laws and regulations such as tax laws, export and import restrictions, employment laws, regulatory requirements 
and other governmental approvals, permits and licenses; 
•
failure by us or our distributors to obtain regulatory approvals for the sale or use of our current products or assays and our planned future products or 
assays in various countries; 
•
difficulties in managing foreign operations; 
•
complexities associated with managing government payor systems, multiple payor-reimbursement regimes or self-pay systems; 
•
logistics and regulations associated with shipping blood samples, including infrastructure conditions and transportation delays; 
•
limits on our ability to penetrate international markets if our current products or assays and our planned future products or assays cannot be 
processed by an appropriately qualified local laboratory; 
•
financial risks, such as longer payment cycles, difficulty enforcing contracts and collecting accounts receivable and exposure to foreign currency 
exchange rate fluctuations; 
•
reduced protection for intellectual property rights, or lack of them in certain jurisdictions, forcing more reliance on our trade secrets, if available; 
•
natural disasters, political and economic instability, including wars, invasions, other military actions, terrorism and political unrest, outbreak of 
disease, boycotts, curtailment of trade and other business restrictions; and 
•
failure to comply with the Foreign Corrupt Practices Act, including its books and records provisions and its anti-bribery provisions, by maintaining 
accurate information and control over sales activities and distributors’ activities. 
Any of these risks, if encountered, could significantly harm our future international expansion and operations and consequently, have a material adverse 
effect on our financial condition, results of operations and cash flows. 
If our information technology systems or data, or those of third parties upon which we rely, are or were compromised, we could experience adverse 
consequences resulting from such compromise, including, without limitation, regulatory investigations or actions, litigation, interruption to our 
operations, harm to our reputation, fines, penalties, liability, or a loss of revenues, customers or sales, or other adverse consequences.
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In the ordinary course of our business, we may process proprietary, confidential and sensitive information, personal data (including health information), 
intellectual property, trade secrets, and other sensitive business information owned or controlled by ourselves or other parties (collectively, sensitive 
information).
Despite the implementation of security measures, we and the third parties upon whom we rely (including the Internet and related systems) face a variety of 
evolving threats related to sensitive information, including without limitation ransomware attacks, which could cause security incidents. Cyberattacks, 
malicious internet-based activity, online and offline fraud, and other similar activities threaten the confidentiality, integrity, and availability of our sensitive 
information technology systems, and those of the third parties upon which we rely.  Such threats are prevalent and continue to rise, are increasingly difficult 
to detect, and come from a variety of sources, including traditional computer “hackers,” threat actors, “hacktivists,” organized criminal threat actors, 
personnel misconduct or error, employee theft or misuse, sophisticated nation-state and nation-state supported actors. Some actors now engage and are 
expected to continue to engage in cyberattacks, including without limitation nation-state actors for geopolitical reasons and in conjunction with military 
conflicts and defense activities.  During times of war and other major conflicts, we and the third parties upon which we rely may be vulnerable to a 
heightened risk of these attacks, including cyberattacks, that could materially disrupt our systems and operations, supply chain, and ability to produce, sell 
and distribute our products
We and the third parties upon whom we rely are subject to a variety of evolving threats, including but not limited to social engineering attacks (including 
through phishing attacks), software bugs, malicious code (such as viruses and worms), denial-of-service attacks (such as credential stuffing), ransomware 
attacks, supply chain attacks, malware installation (including as a result of advanced persistent threat intrusions), server malfunction, software or hardware 
failures, loss of data or other computer assets, adware,  physical break-ins, fires, telecommunications or network failures, malicious human acts, natural 
disasters, or other similar issues. Ransomware attacks, including those from organized criminal threat actors, nation-states, and nation-state supported 
actors, are becoming increasingly prevalent and severe and can lead to significant interruptions, delays, or outages in our operations, disruption of clinical 
trials, loss of sensitive information (including data related to clinical trials), loss of income, significant extra expenses to restore data or systems, 
reputational loss and the diversion of funds. To alleviate the financial, operational and reputational impact of a ransomware attack, it may be preferable to 
make extortion payments, but we may be unwilling or unable to do so (including, for example, if applicable laws or regulations prohibit such payments). 
In addition, we rely upon third-party service providers and technologies to operate critical business systems to process sensitive information in a variety of 
contexts, including without limitation, assay processing, sample tracking, quality control, customer service and support, billing and reimbursement, 
research and development activities and our general and administrative activities.  Our ability to monitor these third parties’ information security practices 
is limited, and these third parties may not have adequate information security measures in place.  We may share or receive sensitive information with or 
from third parties.  If our third-party service providers experience a security incident or other interruption, we could experience adverse consequences. 
While we may be entitled to damages if our third-party service providers fail to satisfy their privacy or security-related obligations to us, any award may be 
insufficient to cover our damages, or we may be unable to recover such award. Similarly, supply chain attacks have increased in frequency and severity, 
and we cannot guarantee that third parties and infrastructure in our supply chain have not been compromised or that they do not contain exploitable defects 
or bugs that could result in a breach of or disruption to our platform, systems and networks or the systems and networks of third parties that support us and 
our services. Despite the security controls we have in place, such attacks are very difficult to avoid. 
Any of the aforementioned threats and other similar attacks, disruptions or accidents could cause a security incident, which, in turn, could result in 
unauthorized access to, damage to, disablement or encryption of, use or misuse of, disclosure of, modification of, destruction of, or loss of our sensitive 
information, or disrupt our ability to provide our platform or our service providers’ ability to support our services or develop or deliver our products. We 
may expend significant resources, fundamentally change our business activities and practices, or modify our operations in an effort to protect against
security incidents and to mitigate, detect and address actual and potential vulnerabilities. Certain data privacy and security obligations may require us to 
implement and maintain specific, industry-standard or reasonable security measures to protect our information technology systems and sensitive 
information.  Despite the precautionary measures we have taken to try to prevent a security incident, there can be no assurance that these measures will be 
effective.  We may be unable in the future to detect vulnerabilities in our information technology systems because such threats and techniques change 
frequently, are often sophisticated in nature, and may not be detected until after a security incident has occurred.  Despite our efforts to identify and address 
vulnerabilities, if any, in our information technology systems, our efforts may not be successful. These vulnerabilities pose risk to our business. Further, we 
may experience delays in developing and deploying remedial measures designed to address any such identified vulnerabilities.  
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Applicable data privacy and security obligations may require us to notify relevant stakeholders of security incidents.  Such disclosures are costly, and the 
disclosure of any security incident or the failure to comply with such requirements could lead to adverse consequences.  Any disruption or loss of 
information technology or telecommunications systems on which critical aspects of our operations depend could have an adverse effect on our business, 
such as preventing us from processing assays; providing assay results to medical oncologists, neuro-oncologists, surgical oncologists, urologists, 
pulmonologists, pathologists, and other physicians; billing payors; processing reimbursement appeals; handling patient or physician inquiries; conducting 
research and development activities and managing the administrative aspects of our business. 
Furthermore, if we or any third party upon whom we rely experience a security incident, or are perceived to have experienced a security incident, it could 
result in: government enforcement actions that could include investigations, fines, penalties, audits and inspections; additional reporting requirements 
and/or oversight; restrictions on processing personal data or sensitive information (which could impact our ability to conduct tests or develop our products); 
litigation (including class claims); indemnification obligations; negative publicity; reputational harm; monetary fund diversions; interruptions in our 
operations (including availability of data); financial loss; and other similar harms.  Security incidents and attendant consequences may cause customers to 
stop using our services, deter new customers from using our services, and negatively impact our ability to grow and operate our business.
Furthermore, there can be no assurance that our contracts contain limitations of liability, and even where they do, such limitations may not be enforceable, 
adequate or otherwise protect us from liabilities or damages if we fail to comply with obligations related to security incidents.  We cannot be sure that our 
insurance coverage will be adequate or sufficient to protect us from or mitigate liabilities arising out of our privacy and security practices, that such 
coverage will continue to be available on commercially reasonable terms or at all, or that such coverage will pay future claims.
In addition to experiencing a security incident, third parties may gather, collect, or infer sensitive information about us from public sources, data brokers, or
other means that reveals competitively sensitive details about our organization and could be used to undermine our competitive advantage or market 
position.
Regulatory and Reimbursement Risks Relating to Our Business 
Healthcare policy changes, including recently enacted legislation reforming the U.S. health care system, may have a material adverse effect on our 
financial condition, results of operations and cash flows. 
The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively the ACA, enacted in 
March 2010, made a number of substantial changes in the way health care is financed by both governmental and private insurers. 
Although some of these provisions may negatively impact payment rates for clinical laboratory tests, the ACA also extends coverage to over 30 million 
previously uninsured people, which resulted in an increase in the demand for our current assays and our planned future assays. There have been executive, 
judicial and congressional challenges to certain aspects of the ACA. For example, on June 17, 2021, the U.S. Supreme Court dismissed a challenge on 
procedural grounds that argued the ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress. Further, prior to the 
U.S. Supreme Court ruling on January 28, 2021, President Biden issued an executive order that initiated a special enrollment period for purposes of 
obtaining health insurance coverage through the ACA marketplace.  The executive order also instructed certain governmental agencies to review and 
reconsider their existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and 
waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through 
Medicaid or the ACA. In addition, on August 16, 2022, President Biden signed the Inflation Reduction Act of 2022, or IRA, into law, which among other 
things, extends enhanced subsidies for individuals purchasing health insurance coverage in ACA marketplaces through plan year 2025. The IRA also 
eliminates the “donut hole” under the Medicare Part D program beginning in 2025 by significantly lowering the beneficiary maximum out-of-pocket cost 
and creating a new manufacturer discount program. It is possible that the ACA will be subject to judicial or congressional challenges in the future. It is 
unclear how such challenges and the healthcare reform measures of the Biden administration will impact the ACA.
In addition, other legislative changes have been proposed and adopted since the ACA was enacted. The Protecting Access to Medicare Act of 2014, or 
PAMA, was signed to law, which, among other things, significantly altered the current payment methodology under the Medicare Clinical Laboratory Fee 
Schedule, or CLFS. Beginning in 2017 and every three years 
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thereafter (or annually in the case of advanced diagnostic laboratory tests), applicable clinical laboratories must report laboratory test payment data for each 
Medicare-covered clinical diagnostic laboratory test that it furnishes during the specified time period. The reported data must include the payment rate 
(reflecting all discounts, rebates, coupons and other price concessions) and the volume of each test that was paid by each private payor (including health 
insurance issuers, group health plans, Medicare Advantage plans and Medicaid managed care organizations). Effective January 1, 2018, the Medicare 
payment rate for each clinical diagnostic laboratory test is equal to the weighted median amount for the test from the most recent data collection period. 
The payment rate applies to laboratory tests furnished by a hospital laboratory if the test is separately paid under the hospital outpatient prospective 
payment system. The PAMA rate changes did not materially affect our payments beginning in 2018; however, we cannot predict how this may affect future 
payment in coming years. Reporting of payment data under PAMA for clinical diagnostic laboratory tests has been delayed on numerous occasions. Based 
on current law, between January 1, 2024 and March 31, 2024, applicable laboratories will be required to report on data collected during January 1, 2019 
and June 30, 2019. This data will be utilized to determine 2025 to 2026 CLFS rates. In addition, CMS updated the statutory phase-in provisions such that 
the rates for clinical diagnostic laboratory tests in 2020 could not be reduced by more than 10% of the rates for 2019. Pursuant to the CARES Act, the 
statutory phase-in of the payment reductions has been extended through 2024, with a 0% reduction cap for 2021-2022 and a 15% reduction cap for 2024 
through 2026.. It is unclear what impact new quality and payment programs or new pricing structures, such as those adopted under PAMA, may have on 
our business, financial condition, results of operations, or cash flows.
Also, under PAMA, CMS is required to adopt temporary billing codes to identify new tests and new advanced diagnostic laboratory tests that have been 
cleared or approved by the FDA. For an existing test that is cleared or approved by the FDA and for which Medicare payment is made as of April 1, 2014, 
CMS is required to assign a unique billing code if one has not already been assigned by the agency. In addition to assigning the code, CMS is required to 
publicly report payment for the tests. Further, under PAMA, CMS is required to adopt temporary billing codes to identify new tests and new advanced 
diagnostic laboratory tests that have been cleared or approved by the FDA. We cannot determine at this time the full impact of PAMA, including its 
implementing regulations, on our business, financial condition and results of operations. 
Additionally, the Budget Control Act of 2011, among other things, created the Joint Select Committee on Deficit Reduction to recommend proposals in 
spending reductions to Congress. The Joint Select Committee did not achieve its targeted deficit reduction of at least $1.2 trillion for the years 2013 
through 2021, triggering the legislation’s automatic reduction to several government programs. This includes aggregate reductions to Medicare payments to 
providers and suppliers of up to 2% per fiscal year, starting in 2013, and, due to subsequent legislative amendments to the statute, will remain in effect 
through 2031 unless additional congressional action is taken. Under current legislation, the actual reduction in Medicare payments will vary from 1% in 
2022 to up to 4% in the final fiscal year of this sequester. The full impact on our business the sequester law is uncertain. In addition, the Middle-Class Tax 
Relief and Job Creation Act of 2012, or MCTRJCA, mandated an additional change in Medicare reimbursement for clinical laboratory tests. In addition, 
Congress is considering additional health reform measures as part of other reform initiatives.
Some of our laboratory assay business is subject to the Medicare Physician Fee Schedule and, under the current statutory formula, the rates for these 
services are updated annually. For the past several years, the application of the statutory formula would have resulted in substantial payment reductions if 
Congress failed to intervene. In the past, Congress passed interim legislation to prevent the decreases. If Congress fails to intervene to prevent the negative 
update factor in future years, the resulting decrease in payment may adversely affect our revenue and results of operations. If in future years Congress does 
not adopt interim legislation to block or offset, and/or CMS does not moderate, any substantial CMS-proposed reimbursement reductions, the resulting 
decrease in payments from Medicare could adversely impact our revenues and results of operations. 
We cannot predict whether future health care initiatives will be implemented at the federal or state level.  For example, based on a recent executive order, 
the Biden administration expressed its intent to pursue certain policy initiatives to reduce drug prices. The expansion of government’s role in the U.S. 
health care industry, and changes to the reimbursement amounts paid by Medicare and other payors for our current assays and our planned future assays, 
may reduce our profits, if any, and have a materially adverse effect on our business, financial condition, results of operations and cash flows. Moreover, 
Congress has proposed on several occasions to impose a 20% coinsurance payment requirement on patients for clinical laboratory tests reimbursed under 
the CLFS, which would require us to bill patients for these amounts. In the event that Congress were to ever enact such legislation, the cost of billing and 
collecting for our assays could often exceed the amount actually received from the patient.
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Our commercial success could be compromised if hospitals or other clients do not pay our invoices or if third-party payors, including managed care 
organizations and Medicare, do not provide coverage and reimbursement, breach, rescind or modify their contracts or reimbursement policies or delay 
payments for our current assays and our planned future assays. 
Medical oncologists, neuro-oncologists, surgical oncologists, urologists, pulmonologists, pathologists and other physicians may not order our current 
assays and our planned future assays unless third-party payors, such as managed care organizations and government payors (e.g., Medicare and Medicaid), 
pay a substantial portion of the assay price. Coverage and reimbursement by a third-party payor may depend on a number of factors, including a payor’s 
determination that assays using our technologies are: 
•
not experimental or investigational; 
•
medically necessary; 
•
appropriate for the specific patient; 
•
cost-effective; 
•
supported by peer-reviewed publications; and 
•
included in clinical practice guidelines. 
Uncertainty surrounds third-party payor coverage and adequate reimbursement of any test incorporating new technology, including tests developed using 
our technologies. Technology assessments of new medical tests conducted by research centers and other entities may be disseminated to interested parties 
for informational purposes. Third-party payors and health care providers may use such technology assessments as grounds to deny coverage for a test or 
procedure. Technology assessments can include evaluation of clinical utility studies, which define how a test is used in a particular clinical setting or 
situation. 
Because each payor generally determines for its own enrollees or insured patients whether to cover or otherwise establish a policy to reimburse our 
diagnostic assays, seeking payor approvals is a time-consuming and costly process. We cannot be certain that coverage for our current assays and our 
planned future assays will be provided in the future by additional third-party payors or that existing agreements, policy decisions or reimbursement levels 
will remain in place or be fulfilled under existing terms and provisions. If we cannot obtain coverage and adequate reimbursement from private and 
governmental payors such as Medicare and Medicaid for our current assays, or new assays or assay enhancements that we may develop in the future, our 
ability to generate revenues could be limited, which may have a material adverse effect on our financial condition, results of operations and cash flow. 
Further, we may experience delays and interruptions in the receipt of payments from third-party payors due to missing documentation and/or other issues, 
which could cause delay in collecting our revenue. 
In addition, to the extent that our assays are ordered for Medicare inpatients and outpatients, only the hospital may receive payment from the Medicare 
program for the technical component of pathology services and any clinical laboratory services that we perform, unless the testing is ordered at least 14 
days after discharge and certain other requirements are met. We therefore must look to the hospital for payment for these services under these 
circumstances. If hospitals refuse to pay for the services or fail to pay in a timely manner, our ability to generate revenues could be limited, which may 
have a material adverse effect on our financial condition, results of operations and cash flow. 
We expect to depend on Medicare and a limited number of private payors for a significant portion of our revenues and if these or other payors stop 
providing reimbursement or decrease the amount of reimbursement for our current assays and our planned future assays, our revenues could decline. 
Approximately 36% and 56% of total net revenues during the years ended December 31, 2022 and 2021, respectively, were associated with Medicare and 
CARES Act reimbursement. Approximately 16% and 17% of total net revenues during the years ended December 31, 2022 and 2021, respectively, were 
associated with Blue Cross Blue Shield reimbursement.  Approximately 16% and 6% of total net revenues during the years ended December 31, 2022 and 
2021, respectively, were associated with Kaiser Permanente reimbursement. We cannot assure you that, even if our current assays and our planned future 
assays are otherwise successful, reimbursement for the currently Medicare and Blue Cross Blue Shield covered portions of our current assays and our 
planned future assays would, without such contracted payor reimbursement for the capture/enumeration portion, produce sufficient revenues to enable us to 
reach profitability and achieve our other commercial objectives. 
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Medicare and other third-party payors may change their coverage policies or cancel future contracts with us at any time, review and adjust the rate of 
reimbursement or stop paying for our assays altogether, which would reduce our total revenues. Payors have increased their efforts to control the cost, 
utilization and delivery of health care services. In the past, measures have been undertaken to reduce payment rates for and decrease utilization of clinical 
laboratory testing generally. Because of the cost-trimming trends, third-party payors that currently cover and provide reimbursement for our current assays 
and our planned future assays may suspend, revoke or discontinue coverage at any time, or may reduce the reimbursement rates payable to us. Any such 
action could have a negative impact on our revenues, which may have a material adverse effect on our financial condition, results of operations and cash 
flows. 
In addition, we are currently considered a “non-contracted provider” by many private payors because we have not entered into a specific contract to provide 
diagnostic assays to their insured patients at specified rates of reimbursement. Additionally, a significant amount of our non-Medicare business (private 
payors) has historically not been contracted, and reimbursement for this business has historically not been at “in network” rates and has therefore been 
inconsistent. We first began to contract private payor networks in 2015, and since then our number of accessions treated as “in network” has increased as 
we continue to execute additional contracts, and reimbursement is improving. We are currently contracted with nine preferred provider organization 
networks, three large health plans, and five regional independent physician associations, and expect to continue to gain contracts in order to be considered 
as an “in-network” provider with additional plans. If we were to become a contracted provider with additional payors in the future, the amount of overall 
reimbursement we receive would likely decrease because we could be reimbursed less money per assay performed at a contracted rate than at a non-
contracted rate, which could have a negative impact on our revenues. Further, we typically are unable to collect payments from patients beyond that which 
is paid by their insurance and will continue to experience lost revenue as a result. 
Because of certain Medicare billing policies, we may not receive complete reimbursement for assays provided to Medicare patients. Medicare 
reimbursement revenues are an important component of our business model, and private payors sometimes look to Medicare determinations when 
making their own payment determinations; therefore, incomplete or inadequate reimbursement from Medicare would negatively affect our business. 
Medicare has coverage policies that can be national or regional in scope. Coverage means that the assay is approved as a benefit for Medicare beneficiaries. 
If there is no coverage, neither the supplier nor any other party, such as a reference laboratory, may receive reimbursement from Medicare for the service. 
There is currently no national coverage policy regarding the CTC enumeration portion of our assays. Because our laboratory is in California, the regional 
Medicare Administrative Contractor, or MAC, for California is the relevant MAC for all our assays. The previous MAC for California, Palmetto, which is 
contracted with CMS to administer the Molecular Diagnostic Services, or MolDX, program that sets guidelines for coding, coverage and reimbursement of 
molecular diagnostic assays, adopted a negative coverage policy for CTC enumeration. The current MAC for California, Noridian Healthcare Solutions, 
LLC, is adopting the coverage policies from Palmetto. Therefore, the enumeration portion of our assays is not currently covered, and we will receive no 
payment from Medicare for this portion of the service unless and until the coverage policy is changed. Tumor cell enumeration counts disease burden and is 
a prognostic assay, and although valuable, it does not yet meet many of the medical necessity requirements of Medicare and the payors. We intend to 
pursue payment for the capture portion of our CNSide technology that allows us to run our diagnostic testing for some of our assays.
We cannot assure you that, even if our current assays and our planned future assays are otherwise successful, reimbursement for the currently Medicare, 
Blue Cross Blue Shield, and United Healthcare-covered portions of our current assays and our planned future assays would, without such contracted payor 
reimbursement for the capture/enumeration portion, produce sufficient revenues to enable us to reach profitability and achieve our other commercial objectives.
The processing of Medicare claims is subject to change at CMS’ discretion at any time. Cost containment initiatives may be a threat to Medicare 
reimbursement levels (including for the covered components of our current assays and our planned future assays, including FISH analysis and molecular 
assays) for the foreseeable future.
Long payment cycles of Medicare, Medicaid and/or other third-party payors, or other payment delays, could hurt our cash flows and increase our need 
for working capital. 
Medicare and Medicaid have complex billing and documentation requirements that we must satisfy in order to receive payment, and the programs can be 
expected to carefully audit and monitor our compliance with these requirements. We must also comply 
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with numerous other laws applicable to billing and payment for healthcare services, including, for example, privacy laws. Failure to comply with these 
requirements may result in, among other things, non-payment, refunds, exclusion from government healthcare programs, and civil or criminal liabilities, 
any of which may have a material adverse effect on our revenues and earnings. In addition, failure by third-party payors to properly process our payment 
claims in a timely manner could delay our receipt of payment for our products and services, which may have a material adverse effect on our cash flows. 
Complying with numerous regulations pertaining to our business is an expensive and time-consuming process, and any failure to comply could result 
in substantial penalties. 
We are subject to CLIA, a federal law regulating clinical laboratories that perform testing on specimens derived from humans for the purpose of providing 
information for the diagnosis, prevention or treatment of disease. Our clinical laboratory must be certified under CLIA in order for us to perform testing on 
human specimens. CLIA is intended to ensure the quality and reliability of clinical laboratories in the United States by mandating specific standards in the 
areas of personnel qualifications, administration, and participation in proficiency testing, patient test management, quality control, quality assurance and 
inspections. We have a current certificate of accreditation under CLIA to perform high complexity testing, and our laboratory is accredited by one of the
CLIA-approved accreditation organizations. To renew this certificate, we are subject to survey and inspection every two years. Moreover, CLIA and CAP 
inspectors may make periodic inspections of our clinical laboratory outside of the renewal process. The failure to comply with CLIA or CAP requirements 
can result in enforcement actions, including the revocation, suspension, or limitation of our CLIA and/or CAP certificate of accreditation, as well as a 
directed plan of correction, state on-site monitoring, civil money penalties, civil injunctive suit and/or criminal penalties. We must maintain CLIA 
compliance and certification to be eligible to bill for assays provided to Medicare beneficiaries. If we were to be found out of compliance with CLIA 
program requirements and subjected to sanctions, our business and reputation could be harmed. Even if it were possible for us to bring our laboratory back 
into compliance, we could incur significant expenses and potentially lose revenue in doing so. 
In addition, our laboratory is located in California and is required by state law to have a California state license; as we expand our geographic focus, we 
may need to obtain laboratory licenses from additional states. California laws establish standards for operation of our clinical laboratory, including the 
training and skills required of personnel and quality control. In addition, we hold licenses from the states of Pennsylvania, Maryland and Rhode Island to 
test specimens from patients in those states or received from ordering physicians in those states. In addition, our clinical reference laboratory is required to 
be licensed on a product-specific basis by New York as an out of state laboratory and our products, as LDTs, must be approved by the New York State 
Department of Health before they are offered in New York. As part of this process, the State of New York requires validation of our assays. We currently do 
not have the necessary New York license, but we are in the process of addressing the requirements for licensure in New York. Other states may have similar 
requirements or may adopt similar requirements in the future. Finally, we may be subject to regulation in foreign jurisdictions if we seek to expand 
international distribution of our assays outside the United States. 
If we were to lose our CLIA certification or California or other state laboratory license, whether as a result of a revocation, suspension or limitation, we 
would no longer be able to offer our assays, which would limit our revenues and harm our business. If we were to lose, or fail to obtain, a license in any 
other state where we are required to hold a license, we would not be able to test specimens from those states. If we were to lose our CAP accreditation, our 
reputation for quality, as well as our business, financial condition and results of operations, could be significantly and adversely affected.
If the FDA were to begin requiring approval or clearance of our current products or assays and our planned future products or assays, we could incur 
substantial costs and time delays associated with meeting requirements for pre-market clearance or approval or we could experience decreased demand 
for, or reimbursement of, our assays. 
We provide our assays as LDTs. Historically, the FDA has exercised enforcement discretion with respect to most LDTs and has not required laboratories 
that offer LDTs to comply with the agency’s requirements for medical devices (e.g., establishment registration, device listing, quality systems regulations, 
premarket clearance or premarket approval, and post-market controls). In recent years, however, the FDA has stated it intends to end its policy of 
enforcement discretion and regulate certain LDTs as medical devices. To this end, on October 3, 2014, the FDA issued two draft guidance documents, 
entitled “Framework for Regulatory Oversight of Laboratory Developed Tests (LDTs)” and “FDA Notification and Medical Device Reporting for 
Laboratory Developed Tests (LDTs)”, respectively, that set forth a proposed risk-based regulatory framework that would apply varying levels of FDA 
oversight to LDTs. The FDA has indicated that it does not intend to modify its policy of enforcement discretion until the draft guidance documents are 
finalized. In January 2017, the FDA announced that final guidance on the 
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oversight of LDTs would allow for further public discussion. On January 13, 2017 the FDA issued a “Discussion Paper on Laboratory Developed Tests 
(LDTs),” which states that the material in the document does not represent a final version of the LDT draft guidance documents that were published in 2014 
or position of the FDA; rather, the document is a method to encourage additional dialogue. The timing of when, if at all, the draft guidance documents will 
be finalized is unclear, and even then, the new regulatory requirements are proposed to be phased-in consistent with the schedule set forth in the guidance. 
Nevertheless, the FDA may decide to regulate certain LDTs on a case-by-case basis at any time. LDTs with the same intended use as a cleared or approved 
companion diagnostic are defined in FDA’s draft guidance as “high-risk LDTs (Class III medical devices)” for which premarket review would be first to 
occur. 
FDA review, if required and successfully accomplished, would be expected to have some advantages. Certain health insurance payors have paid higher 
amounts over LDT prices for FDA approved or cleared tests, recognizing the additional costs of bringing a test through regulatory review. Some payors 
also accept FDA approval or clearance as a presumptive evidence of an assay’s analytic validity and clinical validity, which can reduce the barriers to 
coverage since the payor can focus its review on clinical utility. 
The container we provide for collection and transport of blood samples from a health care provider to our clinical laboratory, as well as our SCTs, may be 
medical devices subject to the FDA regulation but are currently exempt from pre-market review by the FDA. While we believe that we are currently in 
material compliance with applicable laws and regulations, we cannot assure you that the FDA or other regulatory agencies would agree with our 
determination, and a determination that we have violated these laws, or a public announcement that we are being investigated for possible violations of 
these laws, could adversely affect our business, prospects, results of operations or financial condition. 
Some of the materials we use for our current products, assays and services and may use in our planned future products, assays and services are labeled for 
RUO. In November 2013, the FDA finalized guidance regarding the sale and use of products labeled for research or investigational use only. Among other 
things, the guidance advises that the FDA continues to be concerned about distribution of research or investigational use only products intended for clinical 
diagnostic use and that the manufacturer’s objective intent for the product’s intended use will be determined by examining the totality of circumstances, 
including advertising, instructions for clinical interpretation, presentations that describe clinical use, and specialized technical support, surrounding the 
distribution of the product in question. The FDA has advised that if evidence demonstrates that a product is inappropriately labeled for research or 
investigational use only, the device would be misbranded and adulterated within the meaning of the Federal Food, Drug and Cosmetic Act. Some of the 
materials and reagents obtained by us from suppliers for use in our current products, assays and services and our planned future products, assays and 
services are currently labeled as research or investigational use only products. If the FDA were to undertake enforcement actions, some of our suppliers 
might cease selling research or investigational use products to us, and any failure to obtain an acceptable substitute could significantly and adversely affect 
our business, financial condition and results of operations, including increasing the cost of materials or reagents used in our current products, assays and 
services or planned future products, assays and services or delaying, limiting or prohibiting the purchase of materials or reagents necessary to sell our 
current products or planned future products or to perform our current assays or our planned future assays. 
Our SCTs are marketed for RUO and distributed and sold to end users, some of which will be researchers and institutions while other end users could be
labs performing clinical testing that will create their own LDTs. Some end users may assert that our ROU products caused their assays to perform 
inadequately or give erroneous results. If that was the case, we could potentially incur additional liabilities. 
Further, the Department of Health and Human Services, or HHS, requested that its Advisory Committee on Genetics, Health and Society make 
recommendations about the oversight of genetic testing. A final report was published in April 2008. If the report’s recommendations for increased oversight 
of genetic testing were to result in further regulatory burdens, they could negatively affect our business and delay the commercialization of assays in 
development. 
Additionally, on March 16, 2018, CMS issued a final determination decision memo for Next-Generation Sequencing, or NGS, tests for Medicare 
Beneficiaries with Advanced Cancer (CAG-00450N).  Under this final determination, NGS tests that gain FDA approval or clearance as a companion 
diagnostic will receive coverage, and the final determination of coverage for NGS tests that are LDTs will be left up to the local MAC. Currently, only 2 of 
our 17 CLIA validated assays utilized in CNSide is NGS-based; however, we plan to offer additional NGS assays in the future. To gain coverage for those 
assays, we will need to apply to Palmetto, which is the MAC that evaluates and recommends payment coverage or denial for molecular testing in our 
jurisdiction. Historically, Palmetto has offered a path to reimbursement by providing coverage while data is being gathered 
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known as Coverage with Data Development, or CDD. Going forward, the extent to which CDD will be continued, if at all, or to the extent that a process 
will be available in its place, if any, are unclear.  
The requirement of pre-market review could negatively affect our business until such review is completed and clearance to market or approval is obtained. 
The FDA could require that we stop selling our products or diagnostic assays pending pre-market clearance or approval. If the FDA allows our products or 
assays to remain on the market but there is uncertainty about our products or assays, if they are labeled investigational by the FDA or if labeling claims the 
FDA allows us to make are very limited, orders from laboratory supply distributors and physicians, or reimbursement from third-party payors, may decline. 
The regulatory approval process may involve, among other things, successfully completing additional clinical trials and making a 510(k) submission or 
filing a pre-market approval application with the FDA. If the FDA requires pre-market review, our products or assays may not be cleared or approved on a 
timely basis, if at all. We may also decide voluntarily to pursue FDA pre-market review of our products or assays if we determine that doing so would be 
appropriate. 
If we were required to conduct additional clinical studies or trials before continuing to offer assays that we have developed or may develop as LDTs, 
those studies or trials could lead to delays or failure to obtain necessary regulatory approval, which could cause significant delays in commercializing 
any future products and harm our ability to achieve sustained profitability. 
If the FDA decides to require that we obtain clearance or approvals to commercialize our current assays or our planned future assays, we may be required 
to conduct additional pre-market clinical testing before submitting a regulatory notification or application for commercial sales. In addition, as part of our 
long-term strategy we may plan to seek FDA clearance or approval, so we can sell our assays outside our CLIA laboratory; however, we would need to 
conduct additional clinical validation activities on our assays before we can submit an application for FDA approval or clearance. Clinical trials must be 
conducted in compliance with FDA regulations or the FDA may take enforcement action or reject the data. The data collected from these clinical trials may 
ultimately be used to support market clearance or approval for our assays. It may take two years or more to conduct the clinical studies and trials necessary 
to obtain approval from the FDA to commercially launch our current assays and our planned future assays outside of our clinical laboratory. Even if our 
clinical trials are completed as planned, we cannot be certain that their results will support our assay claims or that the FDA or foreign authorities will agree 
with our conclusions regarding our assay results. Success in early clinical trials does not ensure that later clinical trials will be successful, and we cannot be 
sure that the later trials will replicate the results of prior clinical trials and studies. If we are required to conduct pre-market clinical trials, whether using 
prospectively acquired samples or archival samples, delays in the commencement or completion of clinical testing could significantly increase our assay 
development costs and delay commercialization. Many of the factors that may cause or lead to a delay in the commencement or completion of clinical trials 
may also ultimately lead to delay or denial of regulatory clearance or approval. The commencement of clinical trials may be delayed due to insufficient 
patient enrollment, which is a function of many factors, including the size of the patient population, the nature of the protocol, the proximity of patients to 
clinical sites and the eligibility criteria for the clinical trial. Moreover, the clinical trial process may fail to demonstrate that our current assays and our 
planned future assays are effective for the proposed indicated uses, which could cause us to abandon an assay candidate and may delay development of 
other assays. 
We have engaged a contract research organization to perform data collection and analysis and other aspects of our clinical trials, which might increase the 
cost and complexity of our trials. We may also depend on clinical investigators, medical institutions and contract research organizations to perform the 
trials properly. If these parties do not successfully carry out their contractual duties or obligations or meet expected deadlines, or if the quality, 
completeness or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols or for other reasons, our 
clinical trials may have to be extended, delayed or terminated. Many of these factors would be beyond our control. We may not be able to enter into 
replacement arrangements without undue delays or considerable expenditures. If there are delays in testing or approvals as a result of the failure to perform 
by third parties, our research and development costs would increase, and we may not be able to obtain regulatory clearance or approval for our current 
assays and our planned future assays. In addition, we may not be able to establish or maintain relationships with these parties on favorable terms, if at all. 
Each of these outcomes would harm our ability to market our assays or to achieve sustained profitability. 
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We are subject to federal and state healthcare fraud and abuse laws and regulations and could face substantial penalties if we are unable to fully 
comply with such laws. 
We are subject to health care fraud and abuse regulation and enforcement by both the federal government and the states in which we conduct our business. 
These health care laws and regulations include, for example: 
•
the federal Anti-Kickback Statute, which prohibits, among other things, persons or entities from soliciting, receiving, offering or providing 
remuneration, directly or indirectly, overtly or covertly, in cash or in kind, in return for or to induce either the referral of an individual for, or the 
purchase, lease, order or recommendation of, any good, facility, item or services for which payment may be made under a federal health care 
program such as the Medicare and Medicaid programs; 
•
the federal physician self-referral prohibition, commonly known as the Stark Law, which prohibits physicians from referring Medicare or Medicaid 
patients to providers of “designated health services” with whom the physician or a member of the physician’s immediate family has an ownership 
interest or compensation arrangement, unless a statutory or regulatory exception applies; 
•
the Eliminating Kickbacks in Recovery Act of 2018, or EKRA, which prohibits payments for referrals to recovery homes, clinical treatment 
facilities, and laboratories. EKRA’s reach extends beyond federal health care programs to include private insurance (i.e., it is an “all payor” statute);
•
HIPAA, which established additional federal civil and criminal liability for, among other things, knowingly and willfully executing or attempting to 
execute a scheme to defraud any health care benefit program or making false statements in connection with the delivery of or payment for health 
care benefits, items or services; 
•
HIPAA, as amended by HITECH, and its implementing regulations, which imposes certain requirements relating to the privacy, security and
transmission of individually identifiable health information on “covered entities,” including certain healthcare providers, health plans, and 
healthcare clearinghouses, as well as their respective “business associates” that create, receive, maintain or transmit individually identifiable health 
information for or on behalf of a covered entity, and their subcontractors that use, disclose or otherwise process individually identifiable health 
information; 
•
federal false claims and civil monetary penalties laws, which, prohibit, among other things, individuals or entities from knowingly presenting, or 
causing to be presented, false or fraudulent claims for payment to the federal government; 
•
the federal Physician Payments Sunshine Act requirements under the ACA, which require certain manufacturers of drugs, devices, biologics and 
medical supplies to report to CMS information related to payments and other transfers of value made to or at the request of covered recipients, such 
as physicians, (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), other healthcare professionals (such as physicians 
assistants and nurse practitioners), and teaching hospitals, and certain physician ownership and investment interests held by physicians and their 
immediate family members; and 
•
state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws, which may apply to items or services 
reimbursed by any third-party payor, including commercial insurers. 
Further, the ACA, among other things, amended the intent requirement of the federal Anti-Kickback Statute and certain criminal health care fraud statutes. 
Where the intent requirement has been lowered, a person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it in 
order to have committed a violation. In addition, the government may now assert that a claim including items or services resulting from a violation of the 
federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the false claims statutes. Any action brought against us for violation of 
these laws or regulations, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention 
from the operation of our business. If our operations are found to be in violation of any of these laws and regulations, we may be subject to any applicable 
penalty associated with the violation, including, among others, significant administrative, civil and criminal penalties, damages and fines, imprisonment, 
integrity oversight and reporting obligations, and exclusion from participation in government funded healthcare programs such as Medicare, Medicaid 
programs, including the California Medical Assistance Program (Medi-Cal-the California Medicaid program) or other state or federal health care programs. 
Additionally, we could be required to refund payments received by us, and we could be required to curtail or cease our operations. Any of the foregoing 
consequences could seriously harm our business and our financial results. 
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We are or may become subject to stringent and changing U.S. and foreign  laws, regulations, rules, standards, policies, contractual obligations and 
other obligations related to data privacy and security, including laws and regulations related to health information. Our actual or perceived failure to 
comply with such obligations could lead to regulatory investigations or actions, enforcement or litigation, fines and penalties), a disruption of the 
development or delivery of our products and services, reputational harm, loss of revenue or profits, or other adverse business consequences.
We collect, receive, store, process, use, generate, transfer, disclose, make accessible, protect, secure, dispose of, transmit and share (collectively, process) 
personal data and other sensitive information, including but not limited to proprietary and confidential business information, trade secrets, intellectual 
property, health information and sensitive third-party information. Accordingly, we are, or may become, subject to numerous federal, state, local and 
foreign data privacy and security laws, regulations, guidance and industry standards, including laws that specifically regulate health information, as well as 
external and internal privacy and security policies, contracts and other obligations that apply to the processing of personal data by us and on our behalf. 
In the United States, federal, state, and local governments have enacted numerous data privacy and security laws, including data breach notification laws, 
personal data privacy laws, and consumer protection laws.  For example, HIPAA, as amended by HITECH, and the respective implementing regulations, 
imposes limitations on certain entities’ processing of individual health information, and also grants individuals rights with respect to their health 
information. HITECH also made significant increases in the penalties for improper processing of an individual’s health information under HIPAA and 
extended enforcement authority to state attorneys general. For more information regarding risks associated with HIPAA, please refer to the section above 
titled Confidentiality and Security of Personal Health Information.
As another example, the California Consumer Privacy Act of 2018, or CCPA, applies to personal information of consumers, business representatives, and 
employees, and requires covered businesses to provide specific disclosures related to a business’s processing of personal data, new operational practices, 
and requirements to respond to certain requests from California residents related to their personal data. The CCPA provides for significant civil penalties of 
up to $7,500 per violation as well as a private right of action for data breaches and statutory damages. Although there are limited exemptions for clinical 
trial data and some other health data under the CCPA, the CCPA and other similar laws may impact our business activities and increase our compliance 
costs. In addition the California Privacy Rights Act of 2020, or CPRA, effective January 1, 2023, expanded the CCPA’s rights, including by, among other 
things, giving California residents the ability to correct their personal data and limit use of certain sensitive personal data, establishing restrictions on the 
retention of personal data, expanding the types of data breaches subject to the CCPA’s private right of action, and establishing a new California Privacy
Protection Agency to implement and enforce the new law. In addition, other states have enacted or proposed data privacy laws, which could further 
complicate the legal landscape. For example, Virginia recently passed the Consumer Data Protection Act which became effective on January 1, 2023, and 
Colorado recently passed the Colorado Privacy Act, both of which differ from the CPRA and become effective in July 2023. Other data privacy and 
security laws have also been proposed at the federal, state, and local levels, and may be enacted.
Additionally, outside the United States, an increasing number of laws, regulations, and industry standards apply to data privacy and security. For example, 
the European Union’s General Data Protection Regulation, or EU GDPR, governs the processing of personal data of European persons, and sets out 
extensive compliance requirements. The EU GDPR provides for fines up to the greater of €20 million (£17.5 million) or 4% of global turnover. 
Additionally, we may be subject to the United Kingdom’s GDPR or UK GDPR, which largely mirrors the EU GDPR in UK national law. In addition, 
privacy advocates and industry groups have proposed, and may propose, standards with which we may be legally or contractually bound to comply.
Certain jurisdictions have enacted data localization laws and cross-border personal data transfer laws, which could make it more difficult to transfer 
information across jurisdictions (such as transferring or receiving personal data that originates in the EU or in other foreign jurisdictions).  Although there 
are currently various mechanisms that may be used to transfer personal data from the EEA and UK to the United States in compliance with law, such as the 
EEA and UK’s standard contractual clauses, these mechanisms are subject to legal challenges, and there is no assurance that we can satisfy or rely on these 
measures to lawfully transfer personal data to the United States.
The number and scope of obligations related to data privacy and security, including but not limited to the complex requirements of HIPAA, GDPR and US 
state data privacy law requirements, are rapidly evolving, subject to change and potentially in conflict with each other. As a result, preparing for and 
complying with these obligations requires significant resources and may necessitate changes to our services, information technologies, systems and 
practices, as well as those of any third-party 
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collaborators, service providers, contractors, consultants or other third parties that process personal data on our behalf, any of which could have a negative 
impact on our operations. Our business model materially depends on our ability to process personal data, so we are particularly exposed to the risks 
associated with the rapidly changing legal landscape.  Adding to the complexity is that our operations are evolving, and these laws will apply differently 
depending on our operations, for example whether we electronically bill for our services. 
Although we endeavor to comply with all applicable data privacy and security obligations, we may at times fail to do so or may be perceived to have failed 
to do so. Moreover, despite our efforts, we may not be successful in achieving compliance if our employees, partners, third-party collaborators, service 
providers, contractors or consultants fail to comply with such obligations. If we or the third parties on which we rely fail, or are perceived to have failed, to 
address or comply with applicable data privacy and security obligations, we could face significant consequences, including but not limited to foreign, 
federal, state, or local government enforcement actions that could include investigations, fines, penalties, audits and inspections; litigation (including class-
action claims); additional reporting requirements and/or oversight; temporary or permanent bans on all or some processing of personal data (including in 
relation to clinical trials); and orders to destroy or not use personal data. Any of these events could have a material adverse effect on our reputation, 
business, or financial condition, including but not limited to loss of actual or prospective customers, collaborators or partners; interruption or stoppage in 
clinical trials; inability to process personal data or to operate in certain jurisdictions; limit our ability to develop or commercialize our products; or require 
us to revise or restructure our operations. Moreover, such claims, even if we are not found liable, could be expensive and time-consuming to defend and
could divert management’s attention and cause adverse publicity that could harm our business or have other material adverse effects.
Clinical research is heavily regulated and failure to comply with human subject protection regulations may disrupt our research program leading to 
significant expense, regulatory enforcement, private lawsuits and reputational damage. 
Clinical research is subject to federal, state and, for studies conducted outside of the United States, foreign regulation. At the federal level, the FDA 
imposes regulations for the protection of human subjects and requirements such as initial and ongoing institutional review board review; informed consent 
requirements, adverse event reporting and other protections to minimize the risk and maximize the benefit to research participants. Many states impose 
human subject protection laws that mirror or in some cases exceed federal requirements. HIPAA also regulates the use and disclosure of protected health 
information in connection with research activities. Research conducted overseas is subject to a variety of national protections such as mandatory ethics 
committee review, as well as laws regulating the use, disclosure and cross-border transfer of personal data. For example, if we obtain certain personal 
information regarding residents in the European Union, we may be subject to the GDPR. The costs of compliance with these laws may be significant and 
compliance with regulatory requirements may result in delay of our clinical research and other business operations. Noncompliance may disrupt our 
research and result in data that is unacceptable to regulatory authorities, data lock or other sanctions that may significantly disrupt our operations. 
Violation of a state’s prohibition on the corporate practice of medicine could result in a material adverse effect on our business. 
A number of states, including California, do not allow business corporations to employ physicians to provide professional services. This prohibition against 
the “corporate practice of medicine” is aimed at preventing corporations such as us from exercising control over the medical judgments or decisions of 
physicians. The state licensure statutes and regulations and agency and court decisions that enumerate the specific corporate practice rules vary 
considerably from state to state and are enforced by both the courts and regulatory authorities, each with broad discretion. If regulatory authorities or other 
parties in any jurisdiction successfully assert that we are engaged in the unauthorized corporate practice of medicine, we could be required to restructure 
our contractual and other arrangements. In addition, violation of these laws may result in significant civil, criminal and administrative penalties imposed 
against us and/or the professional through licensure proceedings, and exclusion from state and federal health care programs. 
Intellectual Property Risks Related to Our Business 
If we are unable to obtain and maintain effective patent rights for our products or services, we may not be able to compete effectively in our markets. 
We rely upon a combination of patents, trade secret protection, and confidentiality agreements to protect the intellectual property related to our 
technologies, products and services. Our success depends in large part on our ability to obtain and 
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maintain patent and other intellectual property protection in the United States and in other countries with respect to our proprietary technology and 
products. 
We have sought to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and 
products that are important to our business. This process is expensive and time consuming, and we may not be able to file and prosecute all necessary or 
desirable patent applications at a reasonable cost or in a timely manner. The possibility exists that we will fail to identify patentable aspects of our research 
and development output before it is too late to obtain patent protection. 
The patent position of diagnostic companies generally is highly uncertain and involves complex legal and factual questions for which legal principles 
remain unsolved. The patent applications that we own, or in-license, may fail to result in issued patents with claims that cover our products or services in 
the United States or in other foreign countries. There is no assurance that all potentially relevant prior art relating to our patents and patent applications has 
been found, which can invalidate a patent or prevent a patent from issuing from a pending patent application. Even if patents do successfully issue, and 
even if such patents cover our products and services, third parties may challenge their validity, enforceability, or scope, which may result in such patents 
being narrowed, found unenforceable or invalidated. Furthermore, even if they are unchallenged, our patents and patent applications may not adequately 
protect our intellectual property, provide exclusivity for our products and services, or prevent others from designing around our claims. Any of these 
outcomes could impair our ability to prevent competition from third parties, which may have an adverse impact on our business. 
We, independently or together with our licensors, have filed several patent applications covering various aspects of our products and services. We cannot 
offer any assurances about which, if any, patents will issue, the breadth of any such patent or whether any issued patents will be found invalid and 
unenforceable or will be threatened by third parties. For example, our U.S. patent related to our SCTs is currently under a reexamination procedure in the 
U.S. Patent Office and was issued a Reexamination Certificate. Any successful opposition to these patents or any other patents owned by or licensed to us 
after patent issuance could deprive us of rights necessary for the successful commercialization of any products and services that we may offer. Further, if 
we encounter delays in regulatory approvals, the period of time during which we could market a product or service under patent protection could be 
reduced. 
Patent policy and rule changes could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement 
or defense of our issued patents. 
Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or 
narrow the scope of our patent protection. The laws of foreign countries may not protect our rights to the same extent as the laws of the United States. 
Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other 
jurisdictions are typically not published until 18 months after filing, or in some cases not at all. We therefore cannot be certain that we or our licensors were 
the first to make the invention claimed in our owned and licensed patents or pending applications, or that we or our licensor were the first to file for patent 
protection of such inventions. Assuming the other requirements for patentability are met, in the United States prior to March 15, 2013, the first to make the 
claimed invention is entitled to the patent, while outside the United States, the first to file a patent application is entitled to the patent. After March 15, 
2013, under the Leahy-Smith America Invents Act, or the Leahy-Smith Act, enacted on September 16, 2011, the United States has moved to a first to file 
system. The Leahy-Smith Act also includes a number of significant changes that affect the way patent applications will be prosecuted and may also affect 
patent litigation. The effects of these changes are currently unclear as the United States Patent and Trademark Office, or USPTO, must still implement 
various regulations, the courts have yet to address any of these provisions and the applicability of the act and new regulations on specific patents discussed
herein have not been determined and would need to be reviewed. In general, the Leahy-Smith Act and its implementation could increase the uncertainties 
and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all of which could have a material 
adverse effect on our business and financial condition. 
If we are unable to maintain effective proprietary rights for our products or services, we may not be able to compete effectively in our markets. 
In addition to the protection afforded by patents, we rely on trade secret protection and confidentiality agreements to protect proprietary know-how that is 
not patentable or that we elect not to patent, processes for which patents are difficult to enforce and any other elements of our products and services that 
involve proprietary know-how, information or technology that is not 
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covered by patents. However, trade secrets can be difficult to protect. We seek to protect our proprietary technology and processes, in part, by entering into 
confidentiality agreements with our employees, consultants, scientific advisors, and contractors. We also seek to preserve the integrity and confidentiality 
of our data and trade secrets by maintaining physical security of our premises and physical and electronic security of our information technology systems. 
While we have conducted commercially reasonable due diligence on these individuals, organizations and systems, our agreements with such partners or our 
or their security measures may nevertheless be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may 
otherwise become known or be independently discovered by competitors. 
Although we expect all of our employees and consultants to assign their inventions to us, and all of our employees, consultants, advisors, and any third 
parties who have access to our proprietary know-how, information, or technology to enter into confidentiality agreements, we cannot provide any 
assurances that all such agreements have been duly executed or that our trade secrets and other confidential proprietary information will not be disclosed or 
that competitors will not otherwise gain access to our trade secrets or independently develop substantially equivalent information and techniques. 
Misappropriation or unauthorized disclosure of our trade secrets could impair our competitive position and may have a material adverse effect on our 
business. Additionally, if the steps taken to maintain our trade secrets are deemed inadequate, we may have insufficient recourse against third parties for 
misappropriating the trade secret. 
 
Third-party claims of intellectual property infringement may prevent or delay our development and commercialization efforts. 
Our commercial success depends in part on our avoiding infringement of the patents and proprietary rights of third parties. There have been many lawsuits 
and other proceedings involving patent and other intellectual property rights in the biotechnology and pharmaceutical industries, including patent 
infringement lawsuits, interferences, oppositions, and reexamination proceedings before the USPTO and corresponding foreign patent offices. Numerous 
U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing products 
and services. As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that our products and services may 
be subject to claims of infringement of the patent rights of third parties. 
Third parties may assert that we are employing their proprietary technology without authorization. There may be third-party patents or patent applications 
with claims to materials, formulations, methods of manufacture, or methods for treatment related to the use or manufacture of our products and services. 
We have conducted freedom to operate analyses with respect to only certain of our products and services, and therefore we do not know whether there are 
any third-party patents that would impair our ability to commercialize these products and services. We also cannot guarantee that any of our analyses are 
complete and thorough, nor can we be sure that we have identified each and every patent and pending application in the United States and abroad that is 
relevant or necessary to the commercialization of our products and services. Because patent applications can take many years to issue, there may be 
currently pending patent applications that may later result in issued patents that our products or services may infringe. 
Parties making claims against us may obtain injunctive or other equitable relief, which could effectively block our ability to further develop and 
commercialize one or more of our products or services. Defense of these claims, regardless of their merit, would involve substantial litigation expense and 
would be a substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may have to 
pay substantial damages, including treble damages and attorneys’ fees for willful infringement, pay royalties, redesign our infringing products or obtain one 
or more licenses from third parties, which may be impossible or require substantial time and monetary expenditure. 
We may not be successful in obtaining or maintaining necessary rights to our products or services through acquisitions and in-licenses. 
We currently have rights to the intellectual property, through licenses from third parties and under patents that we own, to develop our products and 
services. Because our programs may require the use of proprietary rights held by third parties, the growth of our business will likely depend in part on our 
ability to acquire, in-license, or use these proprietary rights. We may be unable to acquire or in-license any compositions, methods of use, processes, or 
other third-party intellectual property rights from third parties that we identify as necessary for our products or services. The licensing and acquisition of 
third-party intellectual property rights is a competitive area, and a number of more established companies are also pursuing strategies to license or acquire 
third-party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us due to their 
size, cash resources, and greater clinical development and commercialization 
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capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us. We also may be unable to license 
or acquire third-party intellectual property rights on terms that would allow us to make an appropriate return on our investment. 
We sometimes collaborate with U.S. and foreign institutions to accelerate our research or development under written agreements with these institutions. 
Typically, these institutions provide us with an option to negotiate a license to any of the institution’s rights in technology resulting from the collaboration. 
Regardless of such option, we may be unable to negotiate a license within the specified timeframe or under terms that are acceptable to us. If we are unable 
to do so, the institution may offer the intellectual property rights to other parties, potentially blocking our ability to pursue our program. 
If we are unable to successfully obtain rights to required third-party intellectual property rights or maintain the existing intellectual property rights we have, 
we may have to abandon development of that program and our business and financial condition could suffer. 
Although we are not currently involved in any litigation, we may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, 
which could be expensive, time consuming, and unsuccessful. 
Competitors may infringe our patents or the patents of our licensors. Although we are not currently involved in any litigation, if we or one of our licensing 
partners were to initiate legal proceedings against a third-party to enforce a patent covering one of our products or services, the defendant could 
counterclaim that the patent covering our product or service is invalid and/or unenforceable. In patent litigation in the United States, defendant 
counterclaims alleging invalidity and/or unenforceability are commonplace. Grounds for a validity challenge could be an alleged failure to meet any of 
several statutory requirements, including lack of novelty, obviousness, or non-enablement. Grounds for an unenforceability assertion could be an allegation 
that someone connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading statement, during 
prosecution. The outcome following legal assertions of invalidity and unenforceability is unpredictable. 
Interference proceedings provoked by third parties or brought by us or declared by the USPTO may be necessary to determine the priority of inventions 
with respect to our patents or patent applications or those of our licensors. An unfavorable outcome could require us to cease using the related technology 
or to attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing party does not offer us a license on 
commercially reasonable terms. Our defense of litigation or interference proceedings may fail and, even if successful, may result in substantial costs and 
distract our management and other employees. In addition, the uncertainties associated with litigation could have a material adverse effect on our ability to 
raise sufficient capital to continue our research programs, license necessary technology from third parties, or enter into development partnerships that 
would help commercialize our products or services. 
Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our 
confidential information could be compromised by disclosure during this type of litigation. There could also be public announcements of the results of 
hearings, motions, or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a 
material adverse effect on the price of our common stock.
 
We may be subject to claims that our employees, consultants, or independent contractors have wrongfully used or disclosed confidential information of 
third parties or that our employees have wrongfully used or disclosed alleged trade secrets of their former employers. 
We employ certain individuals who were previously employed at universities or other biotechnology or pharmaceutical companies, including our 
competitors or potential competitors. Although we try to ensure that our employees, consultants, and independent contractors do not use the proprietary 
information or know-how of others in their work for us, and we are not currently subject to any claims that our employees, consultants, or independent 
contractors have wrongfully used or disclosed confidential information of third parties, we may in the future be subject to such claims. Litigation may be 
necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable 
intellectual property rights or personnel, which could adversely impact our business. Even if we are successful in defending against such claims, litigation 
could result in substantial costs and be a distraction to management and other employees. 
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We may be subject to claims challenging the inventorship of our patents and other intellectual property. 
Although we are not currently experiencing any claims challenging the inventorship of our patents or ownership of our intellectual property, we may in the 
future be subject to claims that former employees, collaborators or other third parties have an interest in our patents or other intellectual property as an
inventor or co-inventor. For example, we may have inventorship disputes arise from conflicting obligations of consultants or others who are involved in 
developing our products or services. Litigation may be necessary to defend against these and other claims challenging inventorship. If we fail in defending 
any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights, such as exclusive ownership of, or right to use, 
valuable intellectual property. Such an outcome could have a material adverse effect on our business. Even if we are successful in defending against such 
claims, litigation could result in substantial costs and be a distraction to management and other employees. 
Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our products. 
As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and 
enforcing patents in the biotechnology industry involves both technological and legal complexity. Therefore, obtaining and enforcing biotechnology patents 
is costly, time consuming, and inherently uncertain. In addition, the United States has recently enacted and is currently implementing wide-ranging patent 
reform legislation. Recent U.S. Supreme Court rulings have narrowed the scope of patent protection available in certain circumstances and weakened the 
rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination 
of events has created uncertainty with respect to the value of patents, once obtained. Depending on future actions by the U.S. Congress, the federal courts, 
and the USPTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to 
enforce our existing patents and patents that we might obtain in the future. 
We may not be able to protect our intellectual property rights throughout the world. 
Filing, prosecuting, and defending patents on products and services in all countries throughout the world would be prohibitively expensive, and our 
intellectual property rights in some countries outside the United States can be less extensive than those in the United States. In addition, the laws of some 
foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the United States. Consequently, we may not be 
able to prevent third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made using our 
inventions in and into the United States or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained patent 
protection to develop their own products and may also export infringing products to territories where we have patent protection, but enforcement is not as 
strong as that in the United States. These products may compete with our products and our patents or other intellectual property rights may not be effective 
or sufficient to prevent them from competing. 
Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems 
of certain countries, particularly certain developing countries, do not favor the enforcement of patents, trade secrets, and other intellectual property 
protection, particularly those relating to biotechnology products, which could make it difficult for us to stop the infringement of our patents or marketing of 
competing products in violation of our proprietary rights generally. Proceedings to enforce our patent rights in foreign jurisdictions, whether or not 
successful, could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being 
invalidated or interpreted narrowly and our patent applications at risk of not issuing and could provoke third parties to assert claims against us. We may not 
prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly, our efforts 
to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property 
that we develop or license. 
 
Our collaborators may assert ownership or commercial rights to inventions we develop from our use of the biological materials which they provide to 
us, or otherwise arising from the collaboration. 
We collaborate with several institutions, physicians and researchers in scientific matters. We do not have written agreements with certain of such 
collaborators, or the written agreements we have do not cover intellectual property rights. Also, we rely on numerous third parties to provide us with blood 
samples and biological materials that we use to develop assays. If we cannot 
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successfully negotiate sufficient ownership and commercial rights to any inventions that result from our use of a third-party collaborator’s materials, or if 
disputes arise with respect to the intellectual property developed with the use of a collaborator’s samples, or data developed in a collaborator’s study, we 
may be limited in our ability to capitalize on the market potential of these inventions or developments. 
Risks Relating to Our Common Stock 
The price of our common stock may be volatile. 
Market prices for our common stock have historically been volatile. The factors that may cause the market price of our common stock to fluctuate include, 
but are not limited to: 
•
progress, or lack of progress, in performing, developing and commercializing our current assays and our planned future assays; 
•
favorable or unfavorable decisions about our assays from government regulators, insurance companies or other third-party payors;
•
our ability to recruit and retain qualified research and development personnel; 
•
changes in investors’ and securities analysts’ perception of the business risks and conditions of our business; 
•
changes in our relationship with key collaborators; 
•
changes in the market valuation or earnings of our competitors or companies viewed as similar to us; 
•
changes in key personnel; 
•
depth of the trading market in our common stock; 
•
changes in our capital structure, such as future issuances of securities or the incurrence of additional debt; 
•
disruptions caused by geopolitical conflicts (such as the current Russia-Ukraine conflict) man-made or natural disasters or public health pandemics 
or epidemics or other business interruptions, including, for example, the COVID-19 pandemic; 
•
changes in the structure of healthcare payment systems; 
•
the granting or exercise of employee stock options or other equity awards; 
•
realization of any of the risks described herein; and 
•
general market and economic conditions. 
In addition, the equity markets have experienced significant price and volume fluctuations that have affected the market prices for the securities of public 
companies for a number of reasons, including reasons that may be unrelated to our business or operating performance. These broad market fluctuations 
may result in a material decline in the market price of our common stock and you may not be able to sell your shares at prices you deem acceptable. In the 
past, following periods of volatility in the equity markets, securities class action lawsuits have been instituted against public companies. Such litigation, if 
instituted against us, could result in substantial cost and the diversion of management attention. 
Our failure to meet the continued listing requirements of The Nasdaq Capital Market could result in a de-listing of our common stock. 
If we fail to satisfy the continued listing requirements of The Nasdaq Capital Market, such as the corporate governance requirements, the minimum closing 
bid price requirement, or the minimum stockholders’ equity requirement, Nasdaq may take steps to de-list our common stock. For example, in May 2016, 
we received a letter from Nasdaq indicating that we are not in compliance with the minimum stockholders’ equity requirement of Nasdaq Listing Rule 
5550(b)(1), and in each of June 2016, November 2016, January 2018, September 2019 and October 2022, we received letters from Nasdaq indicating that 
we were not in compliance with the minimum bid price requirement of Nasdaq Listing Rule 5550(a)(2), which requires that companies listed on The 
Nasdaq Capital Market maintain a minimum closing bid price of at least $1.00 per share. We were able to regain 
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compliance with the Nasdaq continued listing requirements discussed in the May 2016, June 2016, November 2016, January 2018 and September 2019 
letters. With respect to the October 2022 letter, we initially had 180 calendar days (or until April 17, 2023) to regain compliance with the minimum bid 
price requirement, and we expect to be afforded an additional 180 days as a result of our meeting the requirements for the 180-day extension, including the 
notice we provided to Nasdaq of our intention to cure the bid price deficiency through a reverse stock split, if necessary. On April 10, 2023, we filed a 
preliminary proxy statement for a special meeting of stockholders to be held on May 21, 2023 for the purpose of approving a reverse split of our 
outstanding common stock. There can be no assurance that we will be able to regain and maintain compliance with the minimum bid price requirement. In 
addition, we were unable to timely file our Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, which resulted in us not being in 
compliance with Nasdaq Listing Rule 5250(c)(1). We subsequently filed such Quarterly Report on Form 10-Q within the additional period granted by 
Nasdaq. However, it is possible that we will be unable to timely file future periodic reports in a timely manner. If we fail to regain and maintain compliance
with Nasdaq’s continued listing requirements, Nasdaq may take steps to de-list our common stock. Such a de-listing would likely have a negative effect on 
the price of our common stock and would impair your ability to sell or purchase our common stock when you wish to do so. In the event of a de-listing, we 
would take actions to restore our compliance with Nasdaq’s listing requirements, but we can provide no assurance that any such action taken by us would 
allow our common stock to become listed again, stabilize the market price or improve the liquidity of our common stock, or prevent future non-compliance 
with Nasdaq’s listing requirements.
Our quarterly operating results may fluctuate significantly. 
We expect our operating results to be subject to quarterly fluctuations. Our net loss and other operating results will be affected by numerous factors, 
including: 
•
the rate of adoption and/or continued use of our current assays and our planned future assays by healthcare practitioners; 
•
variations in the level of expenses related to our development programs; 
•
addition or reduction of resources for sales and marketing; 
•
addition or termination of clinical utility studies; 
•
any intellectual property infringement lawsuit in which we may become involved; 
•
the impact that a resurgence in COVID-19 or another health epidemic or pandemic may have on our core oncology business; 
•
third-party payor coverage and reimbursement determinations affecting our assays; and 
•
regulatory developments affecting our assays. 
If our quarterly operating results fall below the expectations of investors or securities analysts, the price of our common stock could decline substantially. 
Furthermore, any quarterly fluctuations in our operating results may, in turn, cause the price of our stock to fluctuate substantially. 
Future sales of our common stock or other securities, or the perception that future sales may occur, may cause the market price of our common stock 
to decline, even if our business is doing well. 
Sales of substantial amounts of our common stock or other securities, or the perception that these sales may occur, could materially and adversely affect the 
price of our common stock and could impair our ability to raise capital through the sale of additional equity securities. 
We had outstanding 17,070,071 shares of common stock as of December 31, 2022 most of which are not subject to resale restrictions under Rule 144 of the 
Securities Act. In addition, as of December 31, 2022, we had outstanding preferred stock convertible into 46,541 shares of our common stock, 2,263,401 
options to purchase  shares of our common stock and 844,460 shares of our common stock were issuable upon the exercise of outstanding warrants. Shares 
issued upon the exercise of stock options generally will be eligible for sale in the public market, except that affiliates will continue to be subject to volume 
limitations and other requirements of Rule 144 under the Securities Act. The issuance or sale of such shares could depress the market price of our common 
stock. 
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In the future, we also may issue our securities if we need to raise additional capital. The number of new shares of our common stock issued in connection 
with raising additional capital could constitute a material portion of the then-outstanding shares of our common stock.
If we fail to maintain proper and effective internal control over financial reporting, our ability to produce accurate financial statements on a timely 
basis could be impaired and our public reporting may be unreliable.
Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure controls 
and procedures, are designed to prevent fraud. In connection with the restatement of our condensed financial statements as of, and for the three and nine 
months ended, September 30, 2021, we determined that we had a material weakness as of September 30, 2021, namely that our review control over the 
completeness and accuracy of our accounts payable did not operate effectively, resulting in a material error in the financial statements. Subsequently, in 
connection with the preparation and review of our Annual Report on Form 10-K for the year ended December 31, 2021, management determined that a 
deficiency existed related to the methods used to develop certain estimates and the timely review of such estimates. Additionally, in connection with the 
preparation and review of our Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, as well as in connection with the preparation and 
review of our Annual Report on Form 10-K for the year ended December 31, 2022, management determined that a material weakness existed related to our 
controls to review and approve certain revenue-related manual journal entries, including the review of the completeness and the accuracy of the information 
used. In addition, in connection with the preparation and review of our Annual Report on Form 10-K for the year ended December 31, 2022, management 
determined that a material weakness existed related to our review control over the completeness and accuracy of information used when calculating stock-
based compensation expense, which resulted in a material error in the financial statements included in our Quarterly Report on Form 10-Q for the quarter 
ended March 31, 2022. A material weakness means a deficiency, or combination of deficiencies, in internal control over financial reporting such that there 
is a reasonable possibility that a material misstatement of a company’s annual or interim financial statements will not be prevented or detected on a timely 
basis.
Except for the material weakness discovered in connection with the preparation and review of our Annual Report on Form 10-K for the year ended 
December 31, 2022, we have implemented certain aspects of a plan to remediate the material weaknesses in our internal control over financial reporting, 
including steps to design and implement new controls and expand the review of any potential unrecorded liabilities. We will also need to design and 
implement additional controls related to the material weaknesses identified above. However, we cannot assure you that these efforts will remediate our 
material weaknesses in a timely manner, or at all, or that we will be able to maintain effective controls and procedures even if we remediate our material 
weaknesses. If we are unable to successfully remediate our material weaknesses, implement and maintain effective controls and procedures, or identify any 
future material weaknesses, the accuracy and timing of our financial reporting may be adversely affected, we may be unable to maintain compliance with 
securities law requirements regarding timely filing of periodic reports and we may experience a loss of public confidence, which could have an adverse 
effect on our business, financial condition and the market price of our common stock.
We are required to disclose changes made in our internal control procedures on a quarterly basis and our management is required to assess the effectiveness 
of these controls annually. However, for as long as we are a “non-accelerated filer”, our independent registered public accounting firm will not be required 
to attest to the effectiveness of our internal control over financial reporting pursuant to Section 404. An independent assessment of the effectiveness of our 
internal controls could detect problems that our management’s assessment might not. Undetected material weaknesses in our internal controls could lead to 
future financial statement restatements and require us to incur additional expenses of remediation.
Warrants to purchase common stock issued in our December 2019 public offering include a right to receive the Black-Scholes value of the unexercised 
portion of the warrants in the event of a fundamental transaction, which payment could be significant.
The warrants to purchase shares of common stock issued by us in connection with our December 2019 public offering provide that, in the event of a 
“fundamental transaction” that is approved by our board of directors, including, among other things, a merger or consolidation of our company or sale of all 
or substantially all of our assets, the holders of such warrants have the option to require us to pay to such holders an amount of cash equal to the Black-
Scholes value of the warrants. Such amount could be significantly more than the warrant holders would otherwise receive if they were to exercise their 
warrants and receive the same consideration as the other holders of common stock, which in turn could reduce the consideration that holders of common 
stock would be concurrently entitled to receive in such fundamental transaction. Any future equity financing we conduct may require us to issue warrants 
that have a similar feature. 
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Anti-takeover provisions of our certificate of incorporation, our bylaws and Delaware law could make an acquisition of us, which may be beneficial to 
our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove the current members of our board and 
management. 
Certain provisions of our amended certificate of incorporation and amended and restated bylaws could discourage, delay or prevent a merger, acquisition or 
other change of control that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for your shares. 
Furthermore, these provisions could prevent or frustrate attempts by our stockholders to replace or remove members of our Board of Directors. For 
example, Delaware law provides that if a corporation has a classified board of directors, stockholders cannot remove any director during his or her term 
without cause. These provisions also could limit the price that investors might be willing to pay in the future for our common stock, thereby depressing the 
market price of our common stock. Stockholders who wish to participate in these transactions may not have the opportunity to do so. These provisions, 
among other things: 
•
classify our Board of Directors into three classes of equal (or roughly equal) size, with all directors serving for a three-year term and the directors of 
only one class being elected at each annual meeting of stockholders, so that the terms of the classes of directors are “staggered”; 
•
allow the authorized number of directors to be changed only by resolution of our Board of Directors; 
•
authorize our Board of Directors to issue, without stockholder approval, preferred stock, the rights of which will be determined at the discretion of 
the Board of Directors and that, if issued, could operate as a “poison pill” to dilute the stock ownership of a potential hostile acquirer to prevent an 
acquisition that our Board of Directors does not approve; 
•
establish advance notice requirements for stockholder nominations to our Board of Directors or for stockholder proposals that can be acted on at 
stockholder meetings; and 
•
limit who may call a stockholders meeting. 
In addition, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, or DGCL, which may, unless certain criteria are 
met, prohibit large stockholders, in particular those owning 15% or more of the voting rights on our common stock, from merging or combining with us for 
a prescribed period of time. 
Because we do not expect to pay cash dividends for the foreseeable future, you must rely on appreciation of our common stock price for any return on 
your investment. Even if we change that policy, we may be restricted from paying dividends on our common stock. 
We do not intend to pay cash dividends on shares of our common stock for the foreseeable future. Any determination to pay dividends in the future will be 
at the discretion of our Board of Directors and will depend upon results of operations, financial performance, contractual restrictions, restrictions imposed 
by applicable law and other factors our Board of Directors deems relevant. Accordingly, you will have to rely on capital appreciation, if any, to earn a 
return on your investment in our common stock. Investors seeking cash dividends in the foreseeable future should not purchase our common stock. 
Changes in tax laws or regulations that are applied adversely to us or our customers may have a material adverse effect on our business, cash flow, 
financial condition or results of operations.
New income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time, which could adversely affect our business 
operations and financial performance. Further, existing tax laws, statutes, rules, regulations or ordinances could be interpreted, changed, modified or 
applied adversely to us. For example, legislation known as the Tax Cuts and Jobs Act of 2017, the Coronavirus Aid, Relief, and Economic Security Act and 
the Inflation Reduction Act of 2022 enacted many significant changes to the U.S. tax laws. In addition, it is uncertain if and to what extent various states 
will conform to federal tax laws. Future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in 
significant one-time charges, and could increase our future U.S. tax expense.
Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts.
We are subject to taxation in numerous U.S. states and territories. As a result, our effective tax rate is derived from a combination of applicable tax rates in 
the various places that we operate. In preparing our financial statements, we estimate the amount of tax that will become payable in each of such places. 
Nevertheless, our effective tax rate may be different than 
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experienced in the past due to numerous factors, including the results of examinations and audits of our tax filings, our inability to secure or sustain 
acceptable agreements with tax authorities, changes in accounting for income taxes and changes in tax laws. Any of these factors could cause us to 
experience an effective tax rate significantly different from previous periods or our current expectations and may result in tax obligations in excess of 
amounts accrued in our financial statements.
Our ability to use our estimated net operating loss carryforwards and certain other tax attributes may be limited. 
Under current law, federal net operating losses incurred in tax years beginning after December 31, 2017, may be carried forward indefinitely, but the 
deductibility of such federal net operating losses is limited to 80% of current year taxable income. It is uncertain if and to what extent various states will 
conform to federal tax laws. In addition, under Sections 382 and 383 of the Code, if a corporation undergoes an “ownership change,” generally defined as a 
cumulative change in its equity ownership by “5-percent shareholders” of greater than 50 percentage points (by value) over a three-year period, the 
corporation’s ability to use its estimated pre-change net operating loss carryforwards and certain other tax attributes (such as research tax credits) to offset 
its post-change taxable income and taxes, as applicable, may be limited. As of December 31, 2022, we had estimated federal and state net operating loss 
carryforwards of approximately $91.3 million and $66.8 million, respectively, and estimated federal and California research and development tax credits of 
approximately $1.0 million and $4.0 million, respectively, which could be limited if we have experienced or do experience any “ownership changes.” We 
have not completed a study to assess whether an ownership change has occurred or whether there have been multiple ownership changes since our 
formation, due to the complexity and cost associated with such a study, and the fact that there may be additional ownership changes in the future. We 
believe, however, that multiple ownership changes have likely occurred. In addition, at the state level, there may be periods during which the use of net 
operating loss carryforwards is suspended or otherwise limited, which could accelerate or permanently increase state taxes owed.  We have estimated that 
the use of our net operating loss is limited and the amounts above remain fully offset by a valuation allowance. 
We could be subject to securities class action litigation. 
In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is 
especially relevant for us because early-stage life sciences companies have experienced significant stock price volatility in recent years. If we face such 
litigation, it could result in substantial costs and a diversion of management’s attention and resources, which could harm our business. 
General Risk Factors
General economic or business conditions may have a negative impact on our business.
The global economy, including credit and financial markets, has experienced extreme volatility and disruptions, including severely diminished liquidity and 
credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates, increases in inflation rates and 
uncertainty about economic stability. For example, the COVID-19 pandemic resulted in increased unemployment, economic slowdown and extreme 
volatility in the capital markets. Similarly, the ongoing Russia-Ukraine conflict, high interest rights, inflation and recent bank failures have created extreme 
volatility in the global capital markets and may have further global economic consequences. Continuing concerns over United States health care reform 
legislation have also contributed to increased volatility. Any such volatility and disruptions may have adverse consequences on us or the third parties on 
whom we rely. If the equity and credit markets deteriorate, it may make any necessary debt or equity financing more difficult to obtain in a timely manner 
or on favorable terms, more costly or more dilutive.
We have incurred and will continue to incur significant costs as a result of operating as a public company, and our management will be required to 
devote substantial time to new compliance initiatives.
As a public company, we are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended, the Dodd-Frank Wall Street 
Reform and Consumer Protection Act, or the Dodd-Frank Act, the listing requirements of The Nasdaq Stock Market and other applicable securities rules 
and regulations. Compliance with these rules and regulations includes significant legal and financial compliance costs, makes some activities more 
difficult, time-consuming or costly, and increases demand on our systems and resources. The Sarbanes-Oxley Act requires, among other things, that we 
maintain effective disclosure controls and procedures and internal control over financial reporting. In order to maintain and, if required, improve 
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our disclosure controls and procedures and internal control over financial reporting to meet this standard, significant resources and management oversight 
may be required. As a result, management’s attention may be diverted from other business concerns, which could harm our business and operating results. 
Stockholder activism, the current political environment and the current high level of government intervention and regulatory reform may lead to substantial 
new regulations and disclosure obligations, which may lead to additional compliance costs and impact the manner in which we operate our business in 
ways we cannot currently anticipate.
In addition, changing laws, regulations and standards relating to corporate governance and public disclosure are creating uncertainty for public companies, 
increasing legal and financial compliance costs and making some activities more time consuming. These laws, regulations and standards are subject to 
varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is 
provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by 
ongoing revisions to disclosure and governance practices. We intend to invest resources to comply with evolving laws, regulations and standards, and this 
investment may result in increased general and administrative expenses and a diversion of management’s time and attention from revenue-generating 
activities to compliance activities. If our efforts to comply with new laws, regulations and standards differ from the activities intended by regulatory or 
governing bodies due to ambiguities related to practice, regulatory authorities may initiate legal proceedings against us and our business may be harmed.
If securities or industry analysts issue an adverse opinion regarding our stock or do not publish research or reports about our company, our stock price 
and trading volume could decline.
The trading market for our common stock will depend in part on the research and reports that equity research analysts publish about us, our business and 
our competitors. We do not control these analysts or the content and opinions or financial models included in their reports. Securities analysts may elect not 
to provide research coverage of our company, and such lack of research coverage may adversely affect the market price of our common stock. The price of 
our common stock could also decline if one or more equity research analysts downgrade our common stock or if those analysts issue other unfavorable 
commentary or cease publishing reports about us or our business. If one or more equity research analysts cease coverage of our company, we could lose 
visibility in the market, which in turn could cause our stock price to decline.
 
Item 1B. Unresolved Staff Comments. 
Not applicable. 
Item 2. Properties. 
We have a lease for approximately 39,600 square feet of space in San Diego, California for use as a clinical reference laboratory and corporate 
headquarters, including manufacturing and research laboratories. As of December 31, 2022, the average rent for the remaining lease period is 
approximately $150,000 per month. This lease expires in June 2031. We believe that our existing facilities are adequate for our current and reasonably 
foreseeable future needs.
Item 3. Legal Proceedings. 
In the normal course of business, we may be involved in legal proceedings or threatened legal proceedings. We are not party to any legal proceedings or 
aware of any threatened legal proceedings which are expected to have a material adverse effect on our financial condition, results of operations or liquidity.  
Item 4. Mine Safety Disclosures. 
Not applicable.
 
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PART II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities. 
Market Information
 
Our common stock is traded on The Nasdaq Capital Market under the symbol “BIOC.”
Holders of Record 
As of March 31, 2023, there were 11 holders of record of our common stock. The actual number of common stockholders is greater than the number of 
record holders, and includes stockholders who are beneficial owners, but whose shares are held in street name by brokers and other nominees. This number 
of holders of record also does not include stockholders whose shares may be held in trust by other entities. 
Dividend Policy 
We have never declared dividends on our equity securities, and currently do not plan to declare dividends on shares of our common stock in the foreseeable 
future. We expect to retain our future earnings, if any, for use in the operation and expansion of our business. Subject to the foregoing, the payment of cash 
dividends in the future, if any, will be at the discretion of our Board of Directors and will depend upon such factors as earnings levels, capital requirements, 
our overall financial condition and any other factors deemed relevant by our Board of Directors. 
Item 6. [Reserved] 
 
65

 
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 
The following discussion of our financial condition and results of operations should be read together with our financial statements and related notes 
included elsewhere in the Annual Report. This discussion contains forward-looking statements based upon our current plans, estimates, beliefs and 
expectations that involve risks, uncertainties and assumptions. Our actual results may differ materially from those anticipated in these forward-looking 
statements as a result of various factors, including those set forth under the sections entitled “Risk Factors,” “Special Note Regarding Forward-Looking 
Statements” and elsewhere in this Annual Report.
We are a molecular oncology diagnostics company that develops and commercializes proprietary clinical diagnostic laboratory assays designed to identify 
rare tumor cells and cell-free tumor DNA from blood and cerebrospinal fluid, or CSF. The identification of tumor cells and cell-free tumor DNA in CSF 
has become our principal development focus following our early commercial expansion into CSF in 2020. This product was branded and trademarked as 
CNSideTM in April 2021.
The identification of circulating tumor cells, or CTCs, and circulating cell-free tumor DNA and RNA, or ctDNA and ctRNA, deriving from solid tumors 
such as breast cancer or lung cancer using a standard blood sample has been described as a “liquid biopsy.” This term reflects the ease with which 
peripheral blood can be drawn compared to performing a surgical biopsy, but this technology is not limited to a peripheral blood approach.
In January 2020, we adapted and validated our proprietary blood-based liquid biopsy technology for commercial and clinical research use in CSF to 
identify tumor cells that have metastasized to the central nervous system, or CNS, in patients with advanced lung cancer or breast cancer. CNSide has been 
designed to improve the clinical management of patients with suspected metastatic cancer involving the CNS by enabling the quantitative analysis and 
molecular characterization of tumor cells and ctDNA and ctRNA in the CSF. Since then, we have worked extensively with leading neuro-oncologists and
other cancer experts to further define and characterize the use of this unique assay.
Our efforts have culminated in the presentation of our early clinical experience at several leading academic forums, including most recently the Society of 
Neuro-Oncology, or SNO, Brain Metastases meeting in August 2021, as well as the Annual SNO meeting in November 2021, the San Antonio Breast 
Cancer Symposium, or SABCS, in December 2021, the American Academy of Neurology in April 2022, and the annual SNO meeting in November 2022. 
We believe these presentations have illustrated the feasibility of this assay to inform three critical questions important for the care of patients with 
suspected or confirmed metastatic cancer involving the CNS: Is there tumor (diagnosis)? Is there target (presence of a biomarker to aid treatment 
selection)? Is there trend (a response to therapy)?
The question “Is there tumor?” is essential for the diagnostic work-up of these patients. Tumor cells in the blood can shed from either primary or metastatic 
tumors. They can be rapidly removed in the capillary beds of the spleen, liver, kidneys, lungs and other organs, so they are rarely found. They are the 
defining feature of metastasis to the leptomeningeal space within the CNS and hence define the presence or absence of leptomeningeal metastasis, or LM. 
To distinguish tumor cells derived from CSF and blood we often refer to tumor cells in CSF as CSF tumor cells, rather than CTCs.
Regarding the second clinical question, “Is there target?” our CNSide assay provides a vehicle for several different diagnostic assay profiles which 
combined with our molecular test menu and next generation sequencing, or NGS, services can identify tumor cell biomarkers that are intended to help 
physicians make decisions related to the evolution or course of metastatic tumor that may inform treatment decisions. Cancer cells typically acquire genetic 
alterations which differ from that of normal cells. Metastatic cancers often acquire additional genetic alterations which distinguish them from the primary 
tumor site. This marked genetic variation between areas of tumor growth is termed “genetic heterogeneity,” and findings related to this were featured in our 
SABCS presentation in December 2021 illustrating the value of CNSide in identifying “genetic heterogeneity” of a targetable biomarker called HER2.
Finally, regarding the third clinical question, “Is there trend?” over the past year we have gained considerable experience with cases that have been sampled 
multiple times over the course of a patient’s treatment. The association of quantitative CSF tumor cell counts with response to treatment has been noted in 
both lung and breast cancer, as well as other tumors examined. In August 2021, at the SNO Brain Metastases meeting, we presented data obtained from a 
single institution experience showing how serial monitoring of CSF tumor cells by CNSide was used to determine the response to treatment in patients with 
Non-Small Cell Lung Cancer having LM. In addition, in November 2021 at SNO, we presented the early findings of several patients with breast cancer 
having LM which had been followed with multiple CSF samples drawn at different time points on each 
66

 
patient. The downward progression of tumor cell counts has been noted by several treating physicians to correlate with response to treatment and resolution 
of symptoms. Serial monitoring of genetic alterations present in CSF tumor cells may create opportunities to change the therapy of certain patients 
throughout treatment. These observations presented in abstracts and poster presentations in 2021 have informed our clinical study strategy which is the 
basis for our 2022 efforts to further explore these observations in a prospective clinical trial.
Our first CNSide multi-center prospective clinical trial, named FORESEE (NCT05414123) is now enrolling patients. at one site in Los Angeles, CA. The 
trial’s primary outcome measure will assess the impact of CNSide on treatment decisions. Assuming the results of the trial are favorable, we intend to 
pursue the inclusion of CNSide in the standard National Comprehensive Cancer Network, NCCN, guideline for diagnosis and monitoring of LM disease. 
With the help of a leading Clinical Research Organization, we have established the infrastructure for the trial, have opened two sites (one in Los Angeles 
and one in Dallas) and are now in the process of opening at least three additional clinical sites where patients with breast or non-small cell lung cancer, 
NSCLC, who have suspicious or confirmed LM will be enrolled.
COVID-19 Pandemic Response Summary
In June 2020, to respond to a national public health emergency precipitated by the COVID-19 pandemic, we introduced molecular testing for SARS-CoV2, 
the virus responsible for COVID-19, using a United States Food and Drug Administration, or FDA, Emergency Use Authorization, or EUA, based “RT- 
PCR” method developed by Thermo-Fisher.
Since launch of our COVID-19 testing program, we performed more than 1,000,000 assays for customers. We primarily marketed our COVID- 19 testing 
services to skilled nursing facilities in the western United States and to certain community colleges within California.
Our COVID-19 testing services were responsible for most of our revenues during the year ended December 31, 2022 and 2021. However, as a result of 
increased vaccination and immunization levels, as well as decreased COVID-19 hospitalizations, reported cases and mandatory COVID-19 testing, we 
experienced reduced demand for our COVID-19 testing services during 2022. We ceased COVID-19 service offerings in February 2023.
Additional Oncology Testing Services
In addition to CNSide, we previously offered blood-based testing through our Target Selector technologies which enable detection of specific gene 
mutations, such as EGFR, KRAS or BRAF, in ctDNA from blood and CSF samples. In May 2022, after a thorough business review, we decided to 
discontinue certain unprofitable blood-based molecular testing services including our Target Selector offerings. We also offer, and received MolDX 
reimbursement approval for, certain specific protein and gene alterations, such as HER2 amplification, in tumor cells isolated from blood or present in CSF. 
We continue to offer these HER2 based tests as they are an important aspect of our CNSide offering. We will also continue to provide certain other blood-
based testing services for biopharma partners and to support investigator-initiated studies involving CNSide. We believe our multi-modality combination of 
a proprietary cell capture and analysis method in combination with an extensive menu of molecular testing modalities that includes ICC, FISH, PCR testing 
and NGS testing provides us with the necessary tools to service a broad range of diagnostic applications in patients with neurological metastatic cancers. 
We continue to seek other diagnostic modalities that may benefit neuro-oncology patients and their caregivers.
At our corporate headquarters facility located in San Diego, California, we operate a clinical laboratory that is CLIA-certified, CAP accredited and licensed 
by the California Department of Public Health. In this facility we also develop novel assays that are part of our project pipeline for future commercial 
launch and we manufacture our microfluidic channels and various assay reagents and products used in our testing processes. We also work closely with 
external manufacturers to outsource certain products such as collection tubes and to manufacture items that we intend to use in the near future to reduce 
costs and improve efficiency.
The assays we offer and intend to offer are classified as CLIA laboratory developed tests, or LDTs, under CLIA regulations. CLIA certification and state 
licensure in California and certain other states under the supervision of a qualified laboratory medical director is required before any clinical laboratory, 
including ours, may perform testing on human specimens for the purpose of obtaining information for the diagnosis, prevention, or treatment of disease or 
the assessment of health. In addition, 
67

 
we participate in and have received CAP accreditation, which includes rigorous bi-annual laboratory inspections and requires adherence to specific quality 
standards.
Commercial Strategy
Our primary sales strategy is to engage neuro-oncologists, oncologists and other physicians in the United States at private and group practices, hospitals, 
laboratories and cancer centers to educate them about our unique products and services.  In addition, we market our clinical trial and research services to 
pharmaceutical and biopharmaceutical companies and clinical research organizations.
Our revenue generating efforts are focused in the following areas: 
•
providing laboratory services to neuro-oncologists, oncologists and other physicians or healthcare providers treating patients with cancer 
who use the biomarker information we provide in order to determine the best treatment plan for their patients; 
•
providing laboratory services using both our CSF tumor cell and ctDNA and ctRNA assays in order to help pharmaceutical and 
biopharmaceutical companies run clinical studies establishing the use of novel drug therapies used to treat cancer; and
•
licensing our proprietary technology and selling our distributed products, including our SCTs and assay kits, to partners in the United States 
and abroad.
We plan to grow our business by directly offering our CNSide and molecular assays to neuro-oncologists, oncologists and other physicians or heath care 
providers who treat patients with cancer. Based on our product development data, as well as discussions with our key collaborators, we believe that our 
planned future assays, particularly those related to CSF, should provide important information and clinical value to physicians.  
We believe our ability to rapidly translate insights about the utility of cytogenetic, immunocytochemical and molecular biomarkers to provide information 
to neuro-oncologists, oncologists and other physicians for treatment decisions in the clinical setting will improve patient treatment and management, and 
that these assays will become a key component of the standard of care for personalized cancer treatment.
68

 
Key Factors Affecting our Results of Operations and Financial Condition 
Our overall long-term growth plan depends on our ability to continue to develop and commercialize products and assays through our CLIA-certified, CAP-
accredited, and state-licensed laboratory. We have now commercialized our CNSide assays for breast cancer, non-small cell lung cancer, small cell lung 
cancer, melanoma, esophageal cancer, gastric cancer, colorectal cancer, head and neck cancers, ovarian cancer, endometrial cancer, renal cancer, bladder 
cancer, prostate cancer, liver cancer, pancreatic cancer, neuroendocrine cancer, melanoma and plan to continue to launch a series of cancer diagnostic 
assays for different predictive biomarkers assays in the United States as LDTs performed in our laboratory and enhance revenue for these products through 
the efforts of our sales and marketing organization. Our sales strategy is to engage medical oncologists, neuro-oncologists, surgical oncologists, urologists, 
pulmonologists, pathologists and other physicians in the United States at private and group practices, hospitals and cancer centers. We also have a research 
and development program focused on technology enhancements, novel platform development, and evaluating clinical applications for our cancer diagnostic 
tests in different cancer types and clinical settings. 
To facilitate market adoption of our products and assays, we anticipate having to successfully complete additional clinical utility studies with clinical 
samples to generate clinical utility data and then publish our results in peer-reviewed scientific journals, including the FORESEE study for CNSide. Our 
ability to complete such clinical studies is dependent upon our ability to leverage our collaborative relationships with leading institutions to facilitate our 
research, to conduct the appropriate clinical studies and to obtain favorable clinical data.  We currently collaborate with key thought leaders, physicians and 
clinical researchers across the country, including those at Sarah Cannon Research Institute, University of Colorado, Northwestern University Lurie Cancer 
Center, Stanford University, Penn State University, University of California, San Diego, St John’s Cancer Institute at Santa Monica (formerly John Wayne 
Cancer Institute), Columbia University, Emory University, Johns Hopkins Medical Institute, University of Texas Southwestern Medical Center, Yale 
University, Ohio State University, Vanderbilt University, Georgetown University and many others and plan to expand our collaborative relationships to 
include other key thought leaders at other institutions for the cancer types we target with our CNSide commercialized assays and our planned future assays, 
as well as for our current and planned future products. Such relationships help us develop and validate the effectiveness and utility of our products, 
commercialized assays and our planned future assays in specific, clinical settings and provide us access to patient samples and data. 
We believe that the factors discussed in the following paragraphs have had and are expected to continue to have a material impact on our results of 
operations and financial condition. 
Revenues 
Our commercial revenues are generated from diagnostic services provided to patient’s physicians and billed to third-party insurance payors such as 
managed care organizations, Medicare and Medicaid and patients for any deductibles, coinsurance or copayments that may be due. The Company 
recognizes revenue in accordance with Accounting Standards Codification (Topic 606), Revenue from Contracts with Customers, or ASC 606, which 
requires that an entity recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the 
entity expects to be entitled to in exchange for those goods or services.
We bill third-party payors on a fee-for-service basis at our list price and third-party commercial revenue is recorded net of contractual discounts, payor- 
specific allowances and other reserves. Our development services revenues are supported by contractual agreements and generated from assay development 
services provided to entities, as well as certain other diagnostic services provided to physicians. Diagnostic services are completed upon the delivery of 
assay results to the prescribing physician, at which time we bill for the service.
69

 
Our gross commercial revenues billed are subject to estimated deductions for such contractual discounts, payor-specific allowances and other reserves to 
arrive at reported net revenues, which relate to differences between amounts billed and corresponding amounts estimated to be subsequently collected. 
These third-party payor discounts and sales allowances are estimated based on a number of assumptions and factors, including historical payment trends, 
seasonality associated with the annual reset of patient deductible limits on January 1 of each year, and current and estimated future payments. The estimates 
of amounts that will ultimately be realized from commercial diagnostic services require significant judgment by us. Patients do not enter into direct 
agreements with us that commit them to pay any portion of the cost of the tests in the event that they have not met their annual deductible limit under their 
insurance policy, if any, or if their insurance otherwise declines to reimburse us. Adjustments to the estimated payment amounts are recorded at the time of 
final collection and settlement of each transaction as an adjustment to net revenue.
Costs and Expenses
We classify our costs and expenses into four categories: cost of revenues, research and development, sales and marketing, and general and administrative. 
Our costs and expenses principally consist of facility costs and overhead, personnel costs, outside services and consulting costs, laboratory consumables, 
development costs, and legal fees.
Cost of Revenues. Our cost of revenues consists principally of facility costs and overhead, personnel costs, and laboratory and manufacturing supplies and 
materials. We are pursuing various strategies to reduce and control our cost of revenues, including automating aspects of our processes, developing more 
efficient technology and methods, and attempting to negotiate improved terms and volume discounts with our suppliers.
Research and Development Expenses. We incur research and development expenses principally in connection with our efforts to develop and improve our 
tests. Our primary research and development expenses consist of direct personnel costs, laboratory equipment and consumables, and overhead expenses. 
We anticipate that research and development expenses will increase in the near-term, principally to develop and validate tests in our pipeline and to perform 
work associated with clinical utility studies, including the FORESEE study for CNSide, and development collaborations. In addition, we expect that our 
costs related to collaborations with research and academic institutions will increase. All research and development expenses are charged to operations in the 
periods in which they are incurred.
Sales and Marketing Expenses. During the periods presented, our sales and marketing expenses consisted principally of personnel and related overhead 
costs for our sales team and their support personnel, travel and entertainment expenses, and other selling costs including sales collaterals and trade shows. 
In January 2023 as part of a reduction in force that was completed in the first quarter of 2023, we eliminated our field-based sales force in an effort to 
conserve our cash resources. Once we have adequate resources to do so, as part of our business strategy, we plan to hire and develop a field-based sales 
force to educate physicians directly on the benefits of our assays and the clinical data supporting them, as well as provide support to and serve as technical 
specialists for our partners, which will increase our sales and marketing expenses.
General and Administrative Expenses. General and administrative expenses consist principally of personnel-related expenses, professional fees, such as 
legal, accounting and business consultants, insurance costs, and other general expenses. We expect that our general and administrative expenses will remain 
relatively flat for the foreseeable future. 
Critical Accounting Policies and Significant Judgments and Estimates 
 
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management 
to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of 
the financial statements and the reported amounts of revenues and expenses during the reported periods. While we believe these estimates are reasonable 
and consistent, they are by their very nature estimates of amounts that will depend on future events. Accordingly, actual results could differ from these 
estimates. Our Audit Committee periodically reviews our significant accounting policies. Our critical accounting policies arise in conjunction with the 
following:
•
revenue recognition;
•
stock-based compensation; and
•
going concern.
70

 
Revenue Recognition
We initiate a revenue transaction when we receive a requisition order to perform a diagnostic test. The information provided on the requisition form is used 
to determine the party that will be billed for the testing performed and the expected reimbursement.  We recognize revenue and satisfy our performance 
obligation for services rendered when the testing process is complete, and associated results are reported. Revenues flow from clients, patients, Medicare 
and Medicaid and other third-party payors.  We consider negotiated discounts and anticipated adjustments, including historical collection experience for the 
payor portfolio, when revenues are recorded.
The following are descriptions of our payors:
Clients
Client payors represent the portion of revenue related to physicians, hospitals, health systems, accountable care organizations, employers and other entities 
where payment is received exclusively from the entity ordering the testing service. 
Patients
Patient revenues include revenue from uninsured patients and member cost-share for insured patients (e.g., coinsurance, deductibles and non-covered 
services). Uninsured patients are billed based upon our fee schedules. We bill insured patients as directed by their health plan and after consideration of the 
fees and terms associated with an established health plan contract.
Medicare and Medicaid
Medicare and Medicaid revenues are received from traditional Medicare and Medicaid programs. Net revenue from these programs is based on the fee 
schedule established by the related government authority. In addition, other adjustments including anticipated payor denials are considered when 
determining net revenue. Any remaining adjustments to revenue are recorded at the time of final collection and settlement. These adjustments are not 
material to our results of operations in any period presented.
Third Party
Third party includes revenue related to insurance companies. Most of our third-party revenue is reimbursed on a fee-for-service basis. These payors are 
billed based on our established list price and revenue is recorded net of contractual discounts. Revenues are recorded based upon contractually negotiated 
fee schedules, with revenues for non-contracted managed care organizations recorded based on historical reimbursement experience.
Revenue Recognition and Related Reserves
Our commercial revenues are generated from diagnostic services provided to patient’s physicians and billed to third-party insurance payors such as 
managed care organizations, Medicare and Medicaid and patients for any deductibles, coinsurance or copayments that may be due. We recognize revenue 
in accordance with ASC 606, Revenue from Contracts with Customers, or ASC 606, which requires that an entity recognize revenue when it transfers 
promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those 
goods or services. 
Contracts
For our commercial revenues, while we market directly to physicians, our customer is the patient. Patients do not enter into direct agreements with us, 
however, a patient’s insurance coverage requirements would dictate whether or not any portion of the cost of the tests would be patient responsibility. 
Accordingly, we establish a contract with a commercial patient in accordance with other customary business practices, as follows:
•
Approval of a contract is established via the order and accession, which are submitted by the patient’s physician.
•
We are obligated to perform our diagnostic services upon receipt of a sample from a physician, and the patient and/or applicable payor are 
obligated to reimburse us for services rendered based on the patient’s insurance benefits.
•
Payment terms are a function of a patient’s existing insurance benefits, including the impact of coverage decisions with CMS and applicable 
reimbursement contracts established between us and payors, unless the patient is a self-pay patient, whereby we bill the patient directly after 
the services are provided.
71

 
•
Once we deliver a patient’s assay result to the ordering physician, the contract with a patient has commercial substance, as we are legally able 
to collect payment and bill an insurer and/or patient, regardless of payor contract status or patient insurance benefit status.
•
Consideration associated with commercial revenues is considered variable and constrained until fully adjudicated, with net revenues recorded 
to the extent that it is probable that a significant reversal will not occur.
Our development services revenues are supported by contractual agreements and generated from assay development services provided to entities, as well as 
certain other diagnostic services provided to physicians, and revenues are recognized upon delivery of the performance obligations in the contract.
Performance Obligations
A performance obligation is a promise in a contract to transfer a distinct good or service, or a bundle of goods or services, to the customer. For our 
commercial and development services revenues, our contracts have a single performance obligation, which is satisfied upon rendering of services, which 
culminates in the delivery of a patient’s assay result(s) to the ordering physician or entity. The duration of time between accession receipt and delivery of a 
valid assay result to the ordering physician or entity is typically less than two weeks, and for our RT-PCR COVID-19 testing, was typically 48 hours or less. 
Accordingly, we elected the practical expedient and therefore, we do not disclose the value of unsatisfied performance obligations.
Transaction Price
The transaction price is the amount of consideration that we expect to collect in exchange for transferring promised goods or services to a customer, 
excluding amounts collected on behalf of third parties, such as sales taxes. The consideration expected from a contract with a customer may include fixed 
amounts, variable amounts, or both. Our gross commercial revenues billed, and corresponding gross accounts receivable, are subject to price concessions to 
arrive at reported net revenues, which relate to differences between amounts billed and corresponding amounts estimated to be subsequently collected and 
is deemed to be variable although the variability is not explicitly stated in any contract. Rather, the variability is due to several factors, such as the payment 
history or lack thereof for third-party payors, reimbursement rate changes for contracted and non-contracted payors, any patient co-payments, deductibles
or compliance incentives, the existence of secondary payors and claim denials. We estimate the amount of variable consideration using the most likely 
amount approach to estimating variable consideration for third-party payors, including direct patient bills, whereby the estimated reimbursement for 
services is established by payment histories on CPT codes for each payor, or similar payor types. When no payment history is available, the value of the 
account is estimated at Medicare rates, with additional other payor-specific reserves taken as appropriate. Collection periods for billings on commercial 
revenues range from less than 30 days to several months, depending on the contracted or non- contracted nature of the payor, among other variables. The 
estimates of amounts that will ultimately be realized from commercial diagnostic services for non-contracted payors require significant judgment by 
management.
We limit the amount of variable consideration included in the transaction price to the unconstrained portion of such consideration. Revenue is recognized 
up to the amount of variable consideration that is not subject to a significant reversal until additional information is obtained or the uncertainty associated 
with the additional payments or refunds is subsequently resolved. Differences between original estimates and subsequent revisions, including final 
settlements, represent changes in the estimate of implicit price concessions and are included in the period in which such revisions are made. We monitor 
our estimates of transaction price to depict conditions that exist at each reporting date. If we subsequently determine that we will collect more consideration 
than we originally estimated for a contract with a customer, we will account for the change as an increase in the estimate of the transaction price in the 
period identified as an increase to revenue. Similarly, if we subsequently determine that the amount we expect to collect from a customer is less than we 
originally estimated, we will generally account for the change as a decrease in the estimate of the transaction price in the period identified as a decrease to 
revenue. 
Allocate Transaction Price
For our commercial revenues, the entire transaction price is allocated to the single performance obligation contained in a contract with a customer. For our 
development services revenues, the contracted transaction price is allocated to each single performance obligation contained in a contract with a customer 
as performed.
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Point-in-time Recognition
Our single performance obligation is satisfied at a point in time, and that point in time is defined as the date a patient’s successful assay result is delivered 
to the patient’s ordering physician or entity. We consider this date to be the time at which the patient obtains control of the promised diagnostic assay 
service.
Contract Balances
The timing of revenue recognition, billings and cash collections results in accounts receivable recorded in our balance sheets. Generally, billing occurs 
subsequent to delivery of a patient’s test result to the ordering physician or entity, resulting in an account receivable.
Practical Expedients
We do not adjust the transaction price for the effects of a significant financing component, as at contract inception, we expect the collection cycle to be one 
year or less.
We expense sales commissions when incurred because the amortization period is one year or less, which are recorded within sales and marketing expenses.  
We incur certain other costs that are incurred regardless of whether a contract is obtained. Such costs are primarily related to legal services and patient 
communications. These costs are expensed as incurred and recorded within general and administrative expenses. 
Stock-Based Compensation
We account for stock-based compensation under the provisions of ASC 718, Compensation—Stock Compensation, which requires the measurement and 
recognition of compensation expense for all stock-based awards made to employees and directors based on estimated fair values on the grant date. We 
estimate the fair value of stock option awards on the date of grant using the Black-Scholes option pricing model, or Black-Scholes valuation model. The 
fair value of RSUs is determined by the price of our common stock on the date of grant. The value of the portion of the award that is ultimately expected to 
vest is recognized as expense over the requisite service periods using the straight-line method. In addition, forfeitures are recorded when incurred.
Going Concern 
We assess and determine our ability to continue as a going concern under the provisions of ASC Topic 205-40, Presentation of Financial Statements—
Going Concern, which requires us to evaluate whether there are conditions or events that raise substantial doubt about our ability to continue as a going 
concern within one year after the date that our annual and interim financial statements are issued. Certain additional financial statement disclosures are 
required if such conditions or events are identified. If and when an entity’s liquidation becomes imminent, financial statements should be prepared under 
the liquidation basis of accounting.
Determining the extent, if any, to which conditions or events raise substantial doubt about our ability to continue as a going concern, or the extent to which 
mitigating plans sufficiently alleviate any such substantial doubt, as well as whether or not liquidation is imminent, requires significant judgment by us. We 
have determined that it is probable based on projected cash flows that substantial doubt about our ability to continue as a going concern exists for the one-
year period following the date that the financial statements for the year ended December 31, 2022 were issued. We currently expect that our existing 
resources will only be sufficient to fund our planned operations and expenditures into the third quarter of 2023. Management intends to continue its efforts 
to contain costs and to raise additional capital until we can generate sufficient cash from commercial sales to support operations, if ever.  
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Results of Operations 
Years Ended December 31, 2022 and 2021
The following table sets forth certain information concerning our results of operations for the periods shown (in thousands):
 
 
 
For the years ended
   
Change
 
 
December 31,
   
 
   
 
 
 
2022
   
2021
   
$
   
%
Net revenues
 $
25,858    $
61,249    $
(35,391)  
(58%)
Costs and expenses:
  
     
     
   
 
Cost of revenues
  
28,440     
37,764     
(9,324)  
(25%)
Research and development expenses
  
6,161     
4,960     
1,201   
24%
General and administrative expenses
  
16,113     
12,614     
3,499   
28%
Sales and marketing expenses
  
7,127     
8,320     
(1,193)  
(14%)
Total costs and expenses
  
57,841     
63,658     
(5,817)  
(9%)
Loss from operations
  
(31,983)    
(2,409)    
(29,574)  
1,228%
Other (expense):
  
     
     
   
 
Interest expense, net
  
(316)    
(290)    
(26)  
9%
Other income, net
  
87     
-     
87   
100%
Total other (expense):
  
(229)    
(290)    
61   
(21%)
Loss before income taxes
  
(32,212)    
(2,699)    
(29,513)  
1,093%
Income tax benefit (expense)
  
125     
(125)    
250   
(200%)
Net loss
  
(32,087)    
(2,824)    
(29,263)  
1,036%
Net loss attributable to common shareholders
 $
(32,087)   $
(2,824)   $
(29,263)  
1,036%
 
 
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Net Revenues 
Net revenues were approximately $25.9 million for the year ended December 31, 2022, compared with approximately $61.2 million for the year ended 
December 31, 2021. The composition of our net revenues recognized during the years ended December 31, 2022 and 2021, disaggregated by source and
upon delivery, are as follows (in thousands):
 
 
 
For the year ended December 31,
     
     
 
 
2022
   
2021
   
Change
   
%
Net revenues from non-contracted payors
  $
17,612    $
25,671   $
(8,059)  
(31%)
Net revenues from contracted payors*
   
8,004     
35,260   $
(27,256)  
(77%)
Net commercial revenues
   
25,616     
60,931    
(35,315)  
(58%)
Development services revenues
   
240     
147    
93   
63%
Kits and Specimen Collection Tubes (SCTs)
   
2     
171    
(169)  
(99%)
Total net revenues
 $
25,858   $
61,249   $
(35,391)  
(58%)
*Includes Medicare and Medicare Advantage as reimbursements are fixed.
The 58% decrease in net commercial revenues was attributable to decreased accession volumes related to RT-PCR COVID-19 testing and changes in 
implicit price concessions due to payor class changes.  Total commercial accessions delivered for the years ended December 31, 2022 and 2021 were 
294,182 and 532,520, respectively.
The net estimated revenue per commercial accession delivered during the year ended December 31, 2022 was $87 per commercial accession delivered 
while during the year ended December 31, 2021 it was approximately $115 per commercial accession delivered. The decrease in revenue per commercial 
accession delivered, as compared to the prior year, is primarily the result of lower reimbursement rates related to our RT-PCR COVID-19 testing, results of 
payor-mix and change in implicit price concessions.
The following table sets forth certain information regarding commercial accessions and development services cases delivered during the years ended 
December 31, 2022 and 2021, as follows: 
 
 
 
Year ended December 31,
   
Change
 
 
2022
   
2021
   
#/ $
   
%
# Commercial accessions delivered
   
294,182     
532,520     
(238,338)  
(45%)
$ Value estimated per commercial accession delivered
  $
87 
 $
115 
 $
(28)  
(24%)
 
Overall development revenue increased slightly compared with the same period in the prior year due to higher average value per development accession 
delivered. The following table sets forth certain information regarding development cases delivered during the years ended December 31, 2022 and 2021:
 
 
 
Year ended December 31,
   
Change
 
 
2022
   
2021
   
#/ $
   
%
# Development services cases delivered
   
420     
468     
(48)  
(10%)
$ Value estimated per development accession delivered
  $
318 
 $
314 
 $
4   
1%
Costs and Expenses
Cost of Revenues. Cost of revenues was approximately $28.4 million for the year ended December 31, 2022, compared with approximately $37.8 million 
for the year ended December 31, 2021. The decrease is primarily due to a decrease in our RT-PCR COVID-19 testing volume, including a $6.8 million 
decrease in direct materials and supplies, and a $2.8 million decrease in PCR COVID-19 related labor and kit costs. Cost of revenues are comprised of, but 
not limited to, expenses related to personnel costs, materials, supplies, and other direct cost, as well as equipment depreciation and software amortization 
expense. Our cost of revenues as a percentage of net revenues was 110% and 62% for the years ended December 31, 2022 and 2021, respectively.
75

 
Research and Development Expenses. Research and development expenses were approximately $6.2 million for year ended December 31, 2022, compared 
with approximately $5.0 million for the year ended December 31, 2021. Research and development expenses in 2022 related to costs associated with our 
FORESEE clinical trial, including $0.7 million of costs incurred related to work performed by our Contract Research Organization or "CRO", and an 
increase in materials and supplies of $0.4 million. Research and development expenses in 2021 primarily related to materials used in our laboratory to 
advance our research programs. Research and development expenses are comprised of, but not limited to, personnel costs, material, shipping and other 
direct costs, computer and laboratory equipment maintenance and facility related costs.
General and Administrative Expenses. General and administrative expenses were approximately $16.1 million for the year ended December 31, 2022, 
compared with approximately $12.6 million for the year ended December 31, 2021. General and administrative expenses were comprised of, but not 
limited to, personnel costs, facilities, depreciation, repairs and maintenance costs, stock-based compensation expenses, patent and legal costs, accounting 
and audit fees, as well as insurance, office and other expenses. The increase is predominately due to an increase in severance and stock-based compensation 
expenses of approximately $0.9 million and $1.1 million, respectively, due to the resignation of our former Chief Executive Officer and Chief Financial 
Officer and complying with the terms of their separation agreements, which required, among other terms, payment of salary, annual bonus, COBRA 
premiums and an acceleration of stock options previously granted. Furthermore, audit and accounting fees increased by approximately $0.9 million due to 
additional internal control review services performed and an increase in fees for the year end audit and interim reviews. Legal expenses increased by 
approximately $0.4 million due to increased services for SEC filings as well as legal costs associated with the sales commission settlement. Consulting 
service expenses increased by $0.4 million due to accounting consulting services utilized.
Sales and Marketing Expenses. Sales and marketing expenses were approximately $7.1 million for the year ended December 31, 2022, compared with 
approximately $8.3 million for the year ended December 31, 2021. Sales and marketing expenses were comprised of, but not limited to, personnel costs, 
which included commissions, trade show and other marketing related expenses, as well as office and other costs. The decrease is primarily due to a 
decrease of $1.1 million of commission related expenses due to less sales representatives and overall lower revenue volume to earn commissions against.
Interest Expenses, net. Interest expenses, net were approximately $0.3 million for each of the years ended December 31, 2022 and 2021. 
Income Tax Expense 
Except as disclosed below, over the past several years we have generated operating losses in all jurisdictions in which we may be subject to income taxes. 
As a result, we have accumulated significant net operating losses and other deferred tax assets. Because of our history of losses and the uncertainty as to the 
realization of those deferred tax assets, a full valuation allowance has been recognized.
We have not completed a study to assess whether an ownership change has occurred or whether there have been multiple ownership changes since our 
formation, due to the complexity and cost associated with such a study, and the fact that there may be additional ownership changes in the future, however, 
we believe multiple ownership changes likely occurred. As a result, we have estimated that the use of our net operating loss is limited and the remaining net 
operating loss carryforwards and research and development credits we estimate can be used in the future remain fully offset by a valuation allowance to 
reduce the net asset to zero. 
Inflation
We do not believe that inflation has had a material adverse impact on our business or operating results during the periods presented.
Liquidity and Capital Resources 
 
As of December 31, 2022, our cash totaled $12.9 million.
76

 
Cash Flows
Our net cash flow from operating, investing and financing activities for the periods below were as follows (in thousands): 
 
 
 
For the year ended December 31,
 
 
 
2022
   
2021
 
 
 
 
 
   
 
Cash provided by (used in):
   
 
   
 
Operating activities
  $
(13,289)
 $
3,690 
Investing activities
   
(807)
  
(1,572)
Financing activities
   
(1,871)
  
12,378 
Net increase (decrease) in cash
  $
(15,967)
 $
14,496 
 
Operating Activities. Net cash used in operating activities was approximately $13.3 million for the year ended December 31, 2022, compared with net cash 
provided by operating activities of approximately $3.7 million for the year ended December 31, 2021. The cash used in operations for the year ended 
December 31, 2022 was primarily related to our net loss in operations of $32.1 million. Exclusive of our non-cash transactions such as depreciation, 
amortization and stock-based compensation, cash used in operations was primarily due to a reduction of our accounts payable of $5.8 million based on 
timing of payments attributable to legal, accounting, and audit fees, rent, as well as payments related to the sales commissions settlement of $1.7 million, a 
reduction of our accrued liabilities of $0.8 million and a reduction in accounts receivables  of $11.6 million primarily due to overall reduction in revenue.
 
Investing Activities. Net cash used in investing activities was approximately $0.8 million for the year ended December 31, 2022, compared to net cash used 
in investing activities of approximately $1.6 million for the year ended December 31, 2021. Our cash used in investing activities relates to lab equipment 
purchases.
 
Financing Activities. Net cash used in financing activities was approximately $1.9 million for the year ended December 31, 2022, compared with net cash 
provided by financing activities of approximately $12.4 million for the year ended December 31, 2021. Our primary outflows of cash from financing 
activities during year ended December 31, 2022 consisted of $0.8 million of supplier financing payments and $1.3 million of finance lease payments for 
equipment used in our laboratory operations. This is offset by net cash proceeds of $0.2 million from issuance of common stock from our at-the-market 
equity facility.
Liquidity, Capital Resources and Material Cash Requirements 
We expect to continue to incur substantial operating losses in the future. We expect that we will use the net proceeds from our sale of equity securities, if 
any, cash received from the licensing of our technology, if any, and our revenues from operations to hire sales and marketing personnel, support increased 
sales and marketing activities, fund further research and development, clinical utility studies and future enhancements of our assays, acquire equipment, 
implement automation and scale our capabilities to prepare for significant assay volume, for general corporate purposes and to fund ongoing operations and 
the expansion of our business, including the increased costs associated with expanded commercial activities. We may also use the net proceeds from our 
sale of equity securities, if any, cash received from the licensing of our technology, if any, and our revenues from operations to acquire or invest in 
businesses, technologies, services or products, although we do not have any current plans to do so. 
In May 2021, we entered into the Sales Agreement with the Sales Agent, under which we may issue and sell from time to time up to $25.0 million of our 
common stock through or to the Sales Agent, as sales agent or principal. Sales of our common stock under the Sales Agreement are made at market prices 
by any method that is deemed to be an “at the market offering” as defined in Rule 415(a)(4) under the Securities Act of 1933, as amended. During the year 
ended December 31, 2022, we received net proceeds of approximately $0.2 million from the sale of our common stock and issued 219,910 shares of our 
common stock at a weighted average price of $1.29 pursuant to the Sales Agreement. We are not eligible to use Form S-3 as of the filing of this Annual 
Report on Form 10-K and consequently may not make any further sales under the Sales Agreement unless and until we file, and the SEC has declared 
effective, a new shelf registration statement on Form S-3.
As of December 31, 2022, our cash totaled $12.9 million. 
77

 
We can provide no assurances that any sources of a sufficient amount of financing will be available to us on favorable terms, if at all. If we are unable to 
raise a sufficient amount of financing in a timely manner, we would likely need to further scale back our general and administrative activities and certain of 
our research and development activities. Our forecast pertaining to our current financial resources and the costs to support our general and administrative 
and research and development activities are forward-looking statements and involve risks and uncertainties. Actual results could vary materially and 
negatively as a result of a number of factors, including:
•
our ability to secure financing and the amount thereof; 
•
the costs of operating and enhancing our laboratory facilities; 
•
the costs of developing our anticipated internal sales and marketing capabilities; 
•
the scope, progress and results of our research and development programs, including clinical utility studies; 
•
the scope, progress, results, costs, timing and outcomes of the clinical utility studies for our diagnostic assays; 
•
our ability to manage the costs for manufacturing our microfluidic channels; 
•
the costs of maintaining, expanding and protecting our intellectual property portfolio, including potential litigation costs and liabilities; 
•
our ability to obtain adequate reimbursement from governmental and other third-party payors for our assays and services; 
•
the costs of additional general and administrative personnel, including accounting and finance, legal and human resources, as a result of 
becoming a public company; 
•
our ability to collect revenues; and 
•
other risks discussed in our other filings with the SEC. 
To fund our current and planned operations in the short-term (within the next 12 months) and long-term (beyond 12 months), we may seek to raise 
additional capital through public or private equity offerings, debt financings, borrowings or strategic partnerships coupled with an investment in our 
company or a combination thereof. If we raise additional funds through the issuance of convertible debt securities, or other debt securities, these securities 
could be secured and could have rights senior to those of our common stock. In addition, any new debt incurred by us could impose covenants that restrict 
our operations. The issuance of any new equity securities will also dilute the interest of our current stockholders. Given the risks associated with our 
business, including our unprofitable operating history and our ability or inability to develop additional assays, additional capital may not be available when 
needed on acceptable terms, or at all. There is no assurance that we will be able to raise adequate funds when needed or on favorable terms. If adequate 
funds are not available when needed, we will need to delay, scale back or discontinue one or more product development programs, curtail our 
commercialization activities, significantly reduce expenses, sell assets (potentially at a discount to their fair value or carrying value), enter into 
relationships with third parties to develop or commercialize products or technologies that we otherwise would have sought to  develop or commercialize 
independently, pursue an acquisition of our company at a price that may result in a significant loss on investment to our stockholders, file for bankruptcy, 
seek other protection from creditors, or liquidate all of our assets.
Item 7A. Quantitative and Qualitative Disclosures about Market Risk 
 
As a “smaller reporting company,” we are not required to provide the information under this item. 
78

 
Item 8. Financial Statements and Supplementary Data 
Biocept, Inc. 
Index to Financial Statements 
 
 
 
Page
No.
Financial Statements:
   
Report of Independent Registered Public Accounting Firm PCAOB ID 49
 
80
Report of Independent Registered Public Accounting Firm PCAOB ID 199
 
82
Balance Sheets at December 31, 2022 and 2021
 
85
Statements of Operations for the Years Ended December 31, 2022 and 2021
 
86
Statements of Stockholders’ Equity for the Years Ended December 31, 2022 and 2021
 
87
Statements of Cash Flows for the Years Ended December 31, 2022 and 2021
 
88
Notes to Financial Statements
 
89
 
 
 
79

 
Report of Independent Registered Public Accounting Firm
 
 
To the Stockholders and the Board of Directors of Biocept, Inc.
 
 
Opinion on the Financial Statements
We have audited the accompanying balance sheet of Biocept, Inc. (the Company) as of December 31, 2022, the related statements of 
operations, stockholders’ equity and cash flows, for the year then ended, and the related notes (collectively, the financial statements). In our 
opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022, and 
the results of its operations and its cash flows for the year then ended in conformity with accounting principles generally accepted in the 
United States of America.
 
Going Concern
The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in 
Note 2 to the financial statements, the Company has suffered recurring losses from operations, declining revenues and negative cash flows 
from operations. The Company is working towards commercial expansion of its proprietary clinical diagnostics laboratory assays and will 
require additional capital to continue its expansions and to fund its operations. This raises substantial doubt about the Company's ability to 
continue as a going concern. Management's plans in regard to these matters also are described in Note 2. The financial statements do not 
include any adjustments that might result from the outcome of this uncertainty.
 
Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the 
Company's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting 
Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with U.S. federal 
securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
 
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The 
Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit 
we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the 
effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.
 
Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or 
fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the 
amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant 
estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit 
provides a reasonable basis for our opinion.
 
Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were 
communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the 
financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of critical audit 
matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical 
audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
 
 
80

 
Revenue and Accounts Receivable
As discussed in Note 3 to the financial statements, the Company generates revenues from diagnostic services provided to patient's 
physicians and billed to third-party insurance payers such as managed care organizations, Medicare and Medicaid and patients for any 
deductibles, coinsurance or copayments that may be due. The Company’s net revenue was $25.9 million and accounts receivable was $2.2 
million for the year ended December 31, 2022.  Revenues are recorded using payor-specific transaction prices based on amounts in effect or 
contractually agreed by Medicare, Medicaid, third-party and patient payors, and are adjusted for estimated implicit price concessions, to 
reflect the net revenues which the Company expects to receive. The Company utilizes historical reimbursement experience to determine the 
estimated implicit price concessions.
 
We identified the evaluation of the implicit price concession estimate as a critical audit matter. Complex and subjective auditor judgment was 
required to evaluate the historical collection experience. 
 
Our audit procedures related to management’s estimate of the implicit price concessions used to determine the value of net revenue and 
accounts receivable included the following, among others:
•
We evaluated the methods and assumptions used by management to estimate the implicit price concessions by:
o
Testing the historical cash collections data by payor to evaluate whether the inputs to management’s estimate were 
reasonable.
o
Comparing management’s prior-year estimate to current year actual collection results.
o
Obtaining subsequent cash collections and evaluating the reasonableness of accounts receivable recorded as of 
December 31, 2022 by comparing to expected cash collections through the subsequent collection period.
o
Evaluating the reasonableness of accounts receivable remaining after a period of subsequent collections based on 
historical cash collection trends and reimbursement rates.
 
/s/ RSM US LLP
 
We have served as the Company's auditor since 2022.
 
Dallas, Texas
April 17, 2023
 
 
81

 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
 
To the Board of Directors and Shareholders of Biocept, Inc.
 
 
Opinion on the Financial Statements
 
We have audited the accompanying balance sheet of Biocept, Inc. (“Company”) as of December 31, 2021, and the related statements of operations and 
comprehensive loss, shareholders’ equity and cash flows for the year ended December 31, 2021, and the related notes (collectively referred to as the 
“financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of 
December 31, 2021, and the results of its operations and its cash flows for the year ended December 31, 2021, in conformity with accounting principles 
generally accepted in the United States of America. 
 
Basis for Opinion
 
These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial 
statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) 
("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules 
and regulations of the Securities and Exchange Commission and the PCAOB.
 
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable 
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor 
were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of 
internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over 
financial reporting. Accordingly, we express no such opinion.
 
Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and 
performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in 
the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as
evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.
 
Critical Audit Matters
 
The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or 
required to be communicated to the audit committee and that (1) relate to accounts or disclosures that are material to the financial statements and (2) 
involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion 
on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical 
audit matters or on the accounts or disclosures to which they relate.
 
Revenue Recognition and Accounts Receivable 
 
As described in Note 3 to the financial statements, the Company's revenues are generated from diagnostic services provided to patient’s physicians and 
billed to third-party insurance payers such as managed care organizations, Medicare and Medicaid and patients for any deductibles, coinsurance or 
copayments that may be due. The Company’s gross revenues billed, and corresponding gross accounts receivable, represent variable consideration subject
to estimated deductions for allowances and reserves to derive reported net revenues and receivables, which relate to differences between amounts billed and 
corresponding amounts estimated to be subsequently collected. The Company estimates the amount of variable consideration using the most likely amount 
approach to estimating variable consideration for third-party payers, including direct patient bills, whereby the estimated reimbursement for services are 
established based on published reimbursement rates from Medicare and Medicaid by 
82

 
payment histories on Current Procedural Terminology, or CPT, codes for each payer, or similar payer types. The estimates of amounts that will ultimately 
be realized from commercial diagnostic services require significant judgment. 
 
We identified auditing the measurement of the Company’s transaction price for revenue recognition and the corresponding valuation of accounts receivable 
as a critical audit matter. The principal consideration for our determination that performing procedures relating to the transaction price for revenue, and 
corresponding net accounts receivable, is a critical audit matter is the significant judgment by management in estimating the amount to be collected, which 
in turn led to significant auditor judgment, subjectivity and effort in performing procedures and evaluating audit evidence for revenue recognition and net 
accounts receivable. 
 
The primary procedures we performed to address this critical audit matter included:
 
•
Evaluating the appropriateness of the methods used, by evaluating management’s process for developing the estimated transaction price 
which includes related reserves, as well as the accuracy and relevance of the historical billing and collection data used as an input to derive 
the estimated transaction price. 
•
Testing the accuracy of the estimated transaction price for a sample of revenue transactions from the historical billing data and historical 
collection data used in management’s estimation of the transaction price, including agreeing the revenue transactions selected to supporting 
documentation such as physician requisition, cash collected, and delivery of final reports, as applicable.
•
Identifying and evaluating the significant assumptions used in developing the reserves estimate, including:
o
Evaluating the historical accuracy of management’s process for developing the estimate of the amount which will ultimately be 
collected by comparing actual cash collections to the previously recorded transaction price and the net accounts receivable balance.
o
Analyzing the subsequent cash collections of the accounts receivable recorded at December 31, 2021.
o
Evaluated the remaining accounts receivable balances as of December 31, 2021 which have not been collected by developing an 
independent expectation of the net accounts receivable balance, by payer, based on historical collection trends.
 
Management’s Assessment over Going Concern 
 
The Company’s financial statements have been prepared on the going concern basis, which contemplates the continuity of normal business activities and 
the realization of assets and settlement of liabilities in the normal course of business. As discussed in Note 2 to the financial statements, the Company’s 
COVID-19 testing revenue has provided the Company with increased levels of cash inflows from operations, and therefore increased liquidity.  As a result, 
the Company believes that based on its current and planned cash flow and liquidity needs, its cash balances along with projected COVID-19 testing 
revenue will be sufficient to support operations for at least one-year from the issuance date of these financial statements. As such, the Company determined 
that the current facts and circumstances do not indicate it is probable that substantial doubt about the Company’s ability to continue as a going concern 
exists for the one year period following the date that the financial statements for the year ended December 31, 2021 are issued.
 
We identified the Company's assessment of the current indicators and their impact on the Company’s ability to continue as a going concern and the related 
disclosures as a critical audit matter. The principal considerations for our determination include the high degree of management subjectivity in determining 
significant assumptions included in the Company’s estimation of future cash flows, specifically management’s estimates related to COVID-19 diagnostic 
testing revenues and related costs. Performing audit procedures and evaluating audit evidence obtained related to these considerations required a high 
degree of auditor judgment and effort.
 
The primary procedures we performed to address this critical audit matter included:
 
•
Obtaining an understanding of management’s process to develop their estimates included in the cash flow projections used to perform the 
going concern assessment.  We also evaluated the design of certain controls used by management to develop their estimates.
83

 
•
Assessing the reasonableness of the forecasted revenue and operating expenses in management’s going concern assessment of whether the 
Company projects to have sufficient liquidity to fund operations for at least one year from the financial statement issuance date. This 
assessment included: 
o
Evaluating management’s estimates with respect to projected COVID-19 diagnostic testing demand during the going concern 
assessment period in relation to historical demand and the changing demand for COVID-19 testing.
o
Performing sensitivity analyses to evaluate the impact of lower than projected demand for COVID-19 testing revenues on 
management’s projections. 
o
Evaluating management’s intent and ability to manage costs and liquidity if the actual demand for COVID-19 testing revenues are less 
than the demand projected by management. 
o
Evaluating management’s cash flow projections with recent experience, taking into account changes in conditions and events affecting 
the Company, and whether other evidence obtained in other areas of the audit supported or contradicted the conclusions reached by 
management.
•
Evaluating the adequacy of the Company’s disclosures in Note 2 in relation to the going concern assessment.
 
We served as the Company’s auditor from 2005 to 2022.
 
/s/ Mayer Hoffman McCann P.C.
 
San Diego, California
April 5, 2022
 
 
84

 
 
Biocept, Inc.
 
Balance Sheets
 
(in thousands, except share and per share data)
 
 
  
   
 
 
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Assets
 
 
   
 
 
Current assets:
 
   
 
   
Cash
 $
12,897 
 $
28,864 
Accounts receivable
  
2,151 
  
13,786 
Inventories, net
  
757 
  
2,651 
Prepaid expenses and other current assets
  
538 
  
391 
Total current assets
  
16,343 
  
45,692 
Fixed assets, net
  
2,572 
  
2,401 
Lease right-of-use asset - operating
  
8,486 
  
9,026 
Lease right-of-use assets - finance
  
3,086 
  
2,842 
Other non-current assets
  
386 
  
456 
Total assets
 $
30,873 
 $
60,417 
 
 
   
 
   
Liabilities and Stockholders' Equity
 
    
   
Current liabilities:
  
 
  
 
Accounts payable
 $
1,523 
 $
7,246 
Accrued liabilities
  
2,249 
  
3,018 
Current portion of lease liability - operating
  
518 
  
426 
Current portion of lease liabilities - finance
  
1,099 
  
1,083 
Supplier financing
  
117 
  
- 
Total current liabilities
  
5,506 
  
11,773 
Non-current portion of lease liability - operating
  
9,175 
  
9,736 
Non-current portion of lease liabilities - finance
  
1,200 
  
1,428 
Payor liability
  
6,132 
  
- 
Total liabilities
  
22,013 
  
22,937 
Commitments and contingencies (see Note 13)
  
 
  
 
Stockholders’ equity:
 
   
 
   
Preferred stock, $0.0001 par value, 5,000,000 shares authorized; 2,090 shares and 2,106 shares 
issued and outstanding at December 31, 2022 and 2021, respectively.
  
— 
  
— 
Common stock, $0.0001 par value, 150,000,000 shares authorized; 17,070,071 shares and 
16,849,805 shares issued and outstanding at December 31, 2022 and 2021, respectively.
  
2 
  
2 
Additional paid-in capital
  
307,296 
  
303,829 
Accumulated deficit
  
(298,438)
  
(266,351)
Total stockholders’ equity
  
8,860 
  
37,480 
Total liabilities and stockholders’ equity
 $
30,873 
 $
60,417 
 
The accompanying notes are an integral part of these financial statements. 
85

 
 
Biocept, Inc.
 
Statements of Operations
 
(in thousands, except shares and per share data)
 
 
 
 
 
 
 
For the years ended
 
 
 
December 31,
 
 
 
2022
   
2021
 
Net revenues
 $
25,858    $
61,249 
Costs and expenses:
  
     
 
Cost of revenues
  
28,440     
37,764 
Research and development expenses
  
6,161     
4,960 
General and administrative expenses
  
16,113     
12,614 
Sales and marketing expenses
  
7,127     
8,320 
Total costs and expenses
  
57,841     
63,658 
Loss from operations
  
(31,983)    
(2,409)
Other (expense):
  
     
 
Interest expense, net
  
(316)    
(290)
Other income, net
  
87     
- 
Total other (expense):
  
(229)    
(290)
Loss before income taxes
  
(32,212)    
(2,699)
Income tax benefit (expense)
  
125     
(125)
Net loss
  
(32,087)    
(2,824)
Net loss attributable to common shareholders
 $
(32,087)   $
(2,824)
Weighted-average shares outstanding used in computing net loss per share attributable to common 
shareholders:
  
     
 
Basic
  
16,953,812     
14,775,805 
Diluted
  
16,953,812     
14,775,805 
Net loss per common share:
  
     
 
Basic
 $
(1.89)   $
(0.19)
Diluted
  $
(1.89)  
$
(0.19)
 
The accompanying notes are an integral part of these financial statements.
 
86

 
 
Biocept, Inc.
Statements of Stockholders' Equity
(in thousands, except for shares)
 
 
Common Stock
 
Series A
Convertible
Preferred Stock
 
Additional
 
Accumulated
 
 
 
 
Shares
 
Amount
 
Shares
 
Amount   Paid-in Capital  
Deficit
 
Total
Balance at December 31, 2020
 
13,397,041  
$1  
2,111  
$—  
$287,218  
$(263,527)  
$23,692
Stock-based compensation expense
 
—  
—  
—  
—  
2,462  
—  
2,462
Shares issued upon exercise of common stock warrants  
7,212  
—  
—  
—  
28  
—  
28
Shares issued upon cashless exercise of common stock 
warrants
 
16,200  
—  
—  
—  
—  
—  
—
Shares issued for ATM transaction, net of issuance 
costs
 
3,428,680  
1  
—  
—  
14,119  
—  
14,120
Shares issued upon exercise of stock options
 
537  
—  
—  
—  
2  
—  
2
Shares issued upon conversion of preferred stock
 
135  
—  
(5)  
—  
—  
—  
—
Net loss
 
—  
—  
—  
—  
—  
(2,824)  
(2,824)
Balance at December 31, 2021
 
16,849,805  
$2  
2,106  
$—  
$303,829  
$(266,351)  
$37,480
Stock-based compensation expense
 
—  
—  
—  
—  
3,227  
—  
3,227
Shares issued for ATM transaction, net of issuance 
costs
 
219,910  
—  
—  
—  
240  
—  
240
Shares issued upon conversion of preferred stock
 
356  
—  
(16)  
—  
—  
—  
—
Net loss
 
—  
—  
—  
—  
—  
(32,087)  
(32,087)
Balance at December 31, 2022
 
17,070,071  
$2  
2,090  
$—  
$307,296  
$(298,438)  
$8,860
 
The accompanying notes are an integral part of these financial statements.
87

 
 
Biocept, Inc.
 
Statements of Cash Flows
 
(in thousands)
 
 
 
For the years ended December 31,
 
 
 
2022
   
2021
 
Cash Flows from Operating Activities
 
    
   
Net loss
 $
(32,087)   $
(2,824)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
  
     
 
Depreciation and amortization
  
1,655     
1,530 
Noncash operating lease expense
  
540     
1,107 
Stock-based compensation
  
3,227     
2,462 
Loss on disposal of fixed assets
  
9     
4 
Non-cash credit card rewards
  
82     
- 
Increase (decrease) in cash resulting from changes in:
 
    
   
Accounts receivable
  
11,636     
358 
Inventory
  
1,894     
(721)
Landlord reimbursement
  
-     
1,856 
Prepaid expenses and other current assets
  
693     
505 
Other non-current assets
  
28     
(29)
Accounts payable
  
(5,860)    
(411)
Accrued liabilities
  
(770)    
(147)
Operating lease liability
  
(468)    
- 
Payor liability
  
6,132     
- 
            Net cash (used in) provided by operating activities
  
(13,289)    
3,690 
Cash Flows from Investing Activities:
 
    
   
Purchases of fixed assets
  
(807)    
(1,572)
            Net cash used in investing activities
  
(807)    
(1,572)
Cash Flows from Financing Activities:
 
    
   
Net proceeds from issuance of common stock
  
240     
14,120 
Proceeds from exercise of common stock warrants
  
-     
28 
Proceeds from exercise of stock options
  
-     
2 
Payments on finance leases
  
(1,305)    
(1,150)
Payments on supplier financing
  
(806)    
(622)
            Net cash (used in) provided by financing activities
  
(1,871)    
12,378 
Net (decrease) increase in cash
  
(15,967)    
14,496 
Cash at Beginning of Period
  
28,864     
14,368 
Cash at End of Period
  
12,897     
28,864 
Supplemental Disclosures of Cash Flow Information:
 
    
   
Cash paid for interest
 $
316    $
290 
 
 
 
2022
   
2021
 
Non-cash Investing and Financing Activities
  
     
 
Financed insurance premiums
 $
893    $
622 
Fixed assets purchased through financed lease obligations
 $
1,049    $
1,237 
Unpaid fixed asset purchases
 $
137    $
240 
 
The accompanying notes are an integral part of these financial statements.
88

 
BIOCEPT, INC. 
NOTES TO FINANCIAL STATEMENTS 
 
1. The Company and Business Activities 
Biocept, Inc., the Company, was founded in California in May 1997 and is a molecular oncology diagnostics company that develops and commercializes 
proprietary circulating tumor cell and circulating cell-free tumor DNA and RNA assays utilizing a standard blood sample, or liquid biopsy. The Company’s 
current and planned assays are intended to provide information to aid healthcare providers to identify specific oncogenic alterations that may qualify a 
subset of cancer patients for targeted therapy at diagnosis, progression or for monitoring to identify specific resistance mechanisms. Sometimes traditional 
procedures, such as surgical tissue biopsies, result in tumor tissue that is insufficient and/or unable to provide the molecular subtype information necessary 
for clinical decisions. The Company’s assays, performed on blood and cerebral spinal fluid, have the potential to provide more contemporaneous 
information on the characteristics of a patient’s disease when compared with tissue biopsy and radiographic imaging. Further, sales to laboratory supply 
distributors of the Company’s proprietary SCTs commenced in June 2018, which allow for the intact transport of liquid biopsy samples for research use 
only, or RUO, from regions around the world.
The Company operates a clinical laboratory that is CLIA-certified (under the Clinical Laboratory Improvement Amendment of 1988) and CAP-accredited 
(by the College of American Pathologists), and manufactures cell enrichment and extraction microfluidic channels, related equipment and certain reagents 
to perform the Company’s diagnostic assays in a facility located in San Diego, California. CLIA certification and accreditation are required before any 
clinical laboratory may perform testing on human specimens for the purpose of obtaining information for the diagnosis, prevention, treatment of disease, or 
assessment of health. The assays the Company offers are classified as laboratory developed tests under the CLIA regulations.
In July 2013, the Company effected a reincorporation to Delaware by merging itself with and into Biocept, Inc., a Delaware corporation, which had been 
formed to be and was a wholly-owned subsidiary of the Company since July 23, 2013.
The Company experienced increased revenue levels in 2022 and 2021 related to its COVID-19 testing business. In February, 2023, due to reduced demand, 
the Company ceased COVID-19 testing services.
 
2. Liquidity
As of December 31, 2022, cash totaled $12.9 million, and the Company had an accumulated deficit of $298.4 million. For the years ended December 31, 
2022 and 2021, the Company incurred net losses of $32.1 million and $2.8 million, respectively.
The Company has historically funded its operations primarily through sales of its equity securities. During the year ended December 31, 2022, net revenues 
were approximately $25.9 million compared with approximately $61.2 million for the same period in the prior year. For the year ended December 31, 
2021, revenue from the Company’s COVID-19 testing business provided an increased level of cash flow. In February 2023, the Company ceased COVID-
19 testing services.
The Company incurred operating losses for the year ended December 31, 2022 and 2021. The Company had net cash used to fund operations for the year 
ended December 31, 2022, and net cash provided by operations for the year ended December 31, 2021. The Company does not anticipate it will be 
profitable until, if ever, it has commercial expansion of its proprietary clinical diagnostic laboratory assays designed to identify rare tumor cells from 
cerebrospinal fluid, trademarked as CNSide. Accordingly, management performed the required going concern assessment and determined substantial doubt 
exists about the Company's ability to continue as a going concern within one year after the issuance date of this Annual Report on Form 10-K. We currently 
expect that our existing resources will only be sufficient to fund our planned operations and expenditures into the third quarter of 2023. Management 
intends to continue its efforts to contain costs, reducing staff, and to raise additional capital until it ultimately generates sufficient cash to support operations 
from commercial sales. Management’s plans are based on events that are not within its control and therefore substantial doubt about the Company’s ability 
to continue as a going concern has not been alleviated.

 
89

 
3. Summary of Significant Accounting Policies 
Basis of Presentation 
The accompanying financial statements and notes are prepared in accordance with accounting principles generally accepted in the United States of 
America, or U.S. GAAP, and are prepared on the basis that the Company will continue as a going concern (see Note 2). The accompanying financial 
statements and notes do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts 
and classification of liabilities that may result from the possible inability of the Company to continue as a going concern.
Reclassification
The Company reclassified the change in inventory reserve for the year ended December 31, 2021 of approximately $0.1 million within the statement of 
cash flows to conform to the current year presentation. The change in inventory reserve is now included in the increase (decrease) in cash resulting from 
changes in inventory within the cash flows from operating activities. This reclassification had no effect on previously reported cash flows from operating 
activities in the statement of cash flows.
Going Concern
The Company assesses and determines its ability to continue as a going concern in accordance with the provisions of ASC Topic 205-40, Presentation of 
Financial Statements—Going Concern, which requires the Company to evaluate whether there are conditions or events that raise substantial doubt about its 
ability to continue as a going concern within one year after the date that its annual and interim financial statements are issued (see Note 2). Certain 
additional financial statement disclosures are required if such conditions or events are identified. If and when an entity’s liquidation becomes imminent, 
financial statements should be prepared under the liquidation basis of accounting. Determining the extent, if any, to which conditions or events raise 
substantial doubt about the Company’s ability to continue as a going concern, or the extent to which mitigating plans sufficiently alleviate any such 
substantial doubt, as well as whether or not liquidation is imminent, requires significant judgment by management.
Use of Estimates 
The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities 
and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the 
reporting period. On an ongoing basis, management evaluates these estimates and judgments, including those related to accounts receivable reserves, 
inventory reserves, long-lived asset impairment and useful lives, income taxes, including uncertain tax benefits, estimated transaction price for revenues, 
stock-based compensation, incremental borrowing rate estimates, and the determination of the Company’s ability to continue as a going concern. The 
Company bases its estimates on various assumptions that it believes are reasonable under the circumstances. Actual results may differ from these estimates 
under different assumptions or conditions.
Revenue Recognition and Accounts Receivable 
The Company's commercial revenues are generated from diagnostic services provided to patient’s physicians and billed to third-party insurance payors 
such as managed care organizations, Medicare and Medicaid and patients for any deductibles, coinsurance or copayments that may be due. The Company 
recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers, which requires that an entity recognize revenue when it 
transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for 
those goods or services.
Contracts
For its commercial revenues, while the Company markets directly to physicians and other healthcare providers, the Company provides services that benefit 
the patient. Patients do not typically enter into direct agreements with the Company; however, a patient’s insurance coverage requirements would dictate 
whether or not any portion of the cost of the tests would be patient responsibility. Accordingly, the Company establishes contracts with commercial insurers 
in accordance with customary business practices, as follows:
•
Approval of a contract is established via the order and accession, which are submitted by the patient’s physician.
•
The Company is obligated to perform its diagnostic services upon receipt of a sample from a physician, and the patient and/or applicable 
payor are obligated to reimburse the Company for services rendered based on the patient’s insurance benefits. 
90

 
•
Payment terms are a function of a patient’s existing insurance benefits, including the impact of coverage decisions with the Centers for 
Medicare & Medicaid Services, or CMS, and applicable reimbursement contracts established between the Company and payors, unless the 
patient is a self-pay patient, whereby the Company bills the patient directly after the services are provided.
•
Once the Company delivers a patient’s assay result to the ordering physician, the contract with a patient has commercial substance, as the 
Company is legally able to collect payment and bill an insurer and/or patient, regardless of payor contract status or patient insurance 
benefit status.
•
Consideration associated with commercial revenues is considered variable and constrained until fully adjudicated, with net revenues 
recorded to the extent that it is probable that a significant reversal will not occur.
The Company’s development services revenues are supported by contractual agreements and generated from assay development services provided to 
entities, such as pharma or biotech organizations, as well as certain other diagnostic services provided to physicians, and revenues are recognized upon 
satisfaction of the performance obligations in the contract.
Performance Obligations
A performance obligation is a promise in a contract to transfer a distinct good or service, or a bundle of goods or services, to the customer. For its 
commercial and development services revenues, the Company’s contracts have a single performance obligation, which is satisfied upon rendering of 
services, which culminates in the delivery of a patient’s assay result(s) to the ordering physician or entity. The duration of time between accession receipt 
and delivery of a valid assay result to the ordering physician or entity is typically less than two weeks, and for our RT-PCR COVID-19 testing, was 
typically 48 hours or less. Accordingly, the Company elected the practical expedient and therefore, does not disclose the value of unsatisfied performance 
obligations.
Transaction Price
The transaction price is the amount of consideration that the Company expects to collect in exchange for transferring promised goods or services to a 
customer, excluding amounts collected on behalf of third parties, such as sales taxes. The consideration expected from a contract with a customer may 
include fixed amounts, variable amounts, or both. The Company’s gross commercial revenues billed, and corresponding gross accounts receivable, subject 
to price concessions to arrive at reported net revenues, which relate to differences between amounts billed and corresponding amounts estimated to be 
subsequently collected and is deemed to be variable although the variability is not explicitly stated in any contract. Rather, the variability is due to several 
factors, such as the payment history or lack thereof for third-party payors, reimbursement rate changes for contracted and non-contracted payors, any 
patient co-payments, deductibles or compliance incentives, the existence of secondary payors and claim denials. The Company estimates the amount of 
variable consideration using the most likely amount approach to estimating variable consideration for third-party payors, including direct patient bills, 
whereby the estimated reimbursement for services is established by payment histories on CPT codes for each payor, or similar payor types. When no 
payment history is available, the value of the account is estimated at Medicare rates, with additional other payor-specific reserves taken as appropriate. 
Collection periods for billings on commercial revenues range from less than 30 days to several months, depending on the contracted or non- contracted 
nature of the payor, among other variables. The estimates of amounts that will ultimately be realized from commercial diagnostic services for non-
contracted payors require significant judgment by management.
The Company limits the amount of variable consideration included in the transaction price to the unconstrained portion of such consideration. Revenue is 
recognized up to the amount of variable consideration that is not subject to a significant reversal until additional information is obtained or the uncertainty 
associated with the additional payments or refunds is subsequently resolved. Differences between original estimates and subsequent revisions, including 
final settlements, represent changes in the estimate of implicit price concessions and are included in the period in which such revisions are made. The 
Company monitors its estimates of transaction price to depict conditions that exist at each reporting date. If the Company subsequently determines that it 
will collect more consideration than it originally estimated for a contract with a customer, it will account for the change as an increase in the estimate of the 
transaction price in the period identified as an increase to revenue. Similarly, if the Company subsequently determines that the amount it expects to collect 
from a customer is less than it originally estimated, it will generally account for the change as a decrease in the estimate of the transaction price as a 
decrease to revenue.
91

 
Allocate Transaction Price
For the Company’s commercial revenues, the entire transaction price is allocated to the single performance obligation contained in a contract with a 
customer. For the Company’s development services revenues, the contracted transaction price is allocated to each single performance obligation contained 
in a contract with a customer as performed.
Point-in-time Recognition
The Company’s single performance obligation is satisfied at a point in time, and that point in time is defined as the date a patient’s successful assay result is 
delivered to the patient’s ordering physician or entity. The Company considers this date to be the time at which the patient obtains control of the promised 
diagnostic assay service.
Contract Balances
The timing of revenue recognition, billings and cash collections results in accounts receivable recorded in the Company’s balance sheets. Generally, billing 
occurs subsequent to delivery of a patient’s test result to the ordering physician or entity.
Practical Expedients
The Company does not adjust the transaction price for the effects of a significant financing component, as at contract inception, the Company expects the 
collection cycle to be one year or less.
The Company expenses sales commissions when incurred because the amortization period is one year or less; such amounts are recorded within sales and 
marketing expenses.
The Company incurs certain other costs that are incurred regardless of whether a contract is obtained. Such costs are primarily related to legal services and 
patient communications. These costs are expensed as incurred and recorded within general and administrative expenses.
Disaggregation of Revenue and Concentration of Risk
The composition of the Company’s net revenues recognized during the years ended December 31, 2022 and 2021, disaggregated by source and nature, are 
as follows (in thousands): 
 
 
 
For the year ended December 31,
 
 
 
2022
   
2021
 
Net revenues from non-contracted payors
  $
17,612    $
25,671 
Net revenues from contracted payors*
   
8,004     
35,260 
Net commercial revenues
   
25,616     
60,931 
Development services revenues
   
240     
147 
Kits and Specimen Collection Tubes (SCTs)
   
2     
171 
Total net revenues
 $
25,858   $
61,249 
 
*Includes Medicare and Medicare Advantage, as reimbursement amounts are fixed.
 
At December 31, 2022 and 2021, unbilled accounts receivable totaled approximately $0.8 million and $3.5 million, respectively.
Concentration of Risk 
Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of temporary cash investments. 
Concentrations of credit risk with respect to revenues are primarily limited to geographies to which the Company provides a significant volume of its 
services, and to specific third-party payors of the Company’s services such as Medicare, insurance companies, and other third-party payors. The Company’s 
client base consists of a large number of geographically dispersed clients diversified across various customer types.
92

 
The Company's third-party payors that represent more than 10% of total net revenues in any period presented during the years ended December 31, 2022 
and 2021 were as follows: 
 
 
 
 
For the year ended December 31,
 
 
2022
 
2021
Medicare and Medicare Advantage/CARES Act
 
36%
 
56%
Blue Cross Blue Shield
 
16%
 
17%
Kaiser Permanente
 
16%
 
6%
 
The Company's third-party payors that represent more than 10% of total net accounts receivable as of December 31, 2022 and 2021 were as follows: 
 
 
 
 
For the year ended December 31,
 
 
2022
 
2021
Medicare and Medicare Advantage/CARES Act
 
5%
 
31%
Blue Cross Blue Shield
 
23%
 
19%
 
The Company operates in one reportable business segment and historically has derived most revenues only from within the United States.
Certain components used in the Company’s current or planned products are currently sourced from one supplier, for which alternative suppliers exist but 
the Company has not validated the product(s) of such alternative supplier(s), and substitutes for these components may not be obtained easily or may 
require substantial design or manufacturing modifications. 
Cash
The Company places its cash with reputable financial institutions that are insured by the Federal Deposit Insurance Corporation, or FDIC. At times, 
deposits held may exceed the amount of insurance provided by the FDIC. The Company has not experienced any losses in its cash and believes they are not 
exposed to any significant credit risk. 
Inventories 
Inventories are valued at the lower of cost (first-in, first-out) or net realizable value. The two primary components of inventory balances are raw materials 
and subassemblies.  Subassemblies are in process raw materials used in our laboratory operations. The Company records adjustments to its inventory for 
estimated obsolescence or diminution in net realizable value equal to the difference between the cost of the inventory and the estimated net realizable value. 
At the point of loss recognition, a new cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the 
restoration or increase in that newly established cost basis. In addition, the Company records a liability for firm, non-cancelable, and unconditional 
purchase commitments with contract manufacturers and suppliers for quantities in excess of the Company’s future demand forecasts consistent with its 
valuation of excess and obsolete inventory.
Fixed Assets 
Fixed assets consist of machinery and equipment, furniture and fixtures, computer equipment and software, leasehold improvements, financed equipment 
and construction in-process. Fixed assets are stated at cost less accumulated depreciation and amortization. Additions, improvements, and major renewals 
are capitalized. Maintenance, repairs, and minor renewals are expensed as incurred. Depreciation and amortization are recorded using the straight-line 
method over the estimated useful lives of the assets, which range from three to seven years. Leasehold improvements are amortized over the life of the 
lease or the asset, whichever is shorter. Depreciation and amortization expense for the years ended December 31, 2022 and 2021 was approximately $1.7 
million and $1.5 million, respectively. 
93

 
Upon sale or disposal of fixed assets, the accounts are relieved of the cost and the related accumulated depreciation or amortization with any gain or loss 
recorded to the statement of operations and comprehensive loss. 
Fixed assets are reviewed for impairment whenever changes in circumstances indicate that the carrying amount of an asset may not be recoverable. These 
computations utilize judgments and assumptions inherent in the estimates of future cash flows to determine recoverability of these assets. If the 
assumptions about these assets were to change as a result of events or circumstances, the Company may be required to record an impairment loss. No 
material impairment losses were recorded in 2022 and 2021.
Stock-based Compensation 
The Company measures and recognizes compensation expense for all stock-based awards made to employees and directors based on their grant date fair 
values. The Company estimates the fair value of stock option awards on the date of grant using the Black-Scholes option pricing model, while the fair value 
of restricted stock unit awards, or RSUs, is determined by the Company’s stock price on the date of grant. The value of the portion of the award that is 
ultimately expected to vest is recognized as expense over the requisite service periods using the straight-line method. In addition, forfeitures are recorded 
when incurred.  The Company determines the fair value of the stock-based compensation awards granted as either the fair value of the consideration 
received, or the fair value of the equity instruments issued, whichever is more reliably measurable.
Calculating the fair value of stock-based awards requires the input of highly subjective assumptions into the Black-Scholes valuation model. Stock-based 
compensation expense is calculated using the Company’s best estimates, which involves inherent uncertainties, and the application of management’s 
judgment. Significant estimates include the expected life of the stock option, stock price volatility and risk-free interest rate. 
Research and Development 
Research and development costs are expensed as incurred. The amounts expensed in the years ended December 31, 2022 and 2021 were approximately 
$6.2 million and $5.0 million, respectively, which includes salaries of research and development personnel. 
Income Taxes 
The Company provides for income taxes utilizing the liability method. Under the liability method, current income tax expense or benefit is the amount of 
income taxes expected to be payable or refundable for the current year. A deferred income tax asset or liability is computed for the expected future impact 
of differences between the financial reporting and tax bases of assets and liabilities and for the expected future tax benefit to be derived from tax credits. 
Tax rate changes are reflected in the computation of the income tax provision during the period such changes are enacted. 
Deferred tax assets are reduced by a valuation allowance when, in management’s opinion, it is more likely than not that some portion or all of the deferred 
tax assets will not be realized. The Company considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning 
strategies in making this assessment. The Company’s valuation allowance is based on available evidence, including its current year operating loss, 
evaluation of positive and negative evidence with respect to certain specific deferred tax assets including evaluation sources of future taxable income to 
support the realization of the deferred tax assets. The Company has established a full valuation allowance on the deferred tax assets as of December 31, 
2022 and 2021, and therefore has not recognized any income tax benefit or expense in the periods presented for federal tax purposes. The Company did 
recognize income tax expense of $125,000 for the year ended December 31, 2021 for state tax purposes. That has been reversed as an income tax benefit 
for the year ended December 31, 2022. 
A tax benefit from uncertain tax positions may be recognized by the Company when it is more-likely-than-not that the position will be sustained upon 
examination, including resolutions of any related appeals or litigation processes, based on the technical merits of the position. Income tax positions must 
meet a more-likely-than-not recognition threshold to be recognized. 
94

 
The Company recognizes interest and/or penalties related to income tax matters in income tax expense. There is no accrual for interest or penalties for 
income taxes on the balance sheets at December 31, 2022 and 2021, and the Company has not recognized interest and/or penalties in the statements of 
operations and comprehensive loss for the years ended December 31, 2022 and 2021. 
Recent Accounting Pronouncements 
In June 2016, the FASB issued ASU 2016-13, Financial Instruments- Credit Losses, which requires the measurement of expected credit losses for financial 
instruments carried at amortized cost, such as accounts receivable, held at the reporting date based on historical experience, current conditions and 
reasonable forecasts. The main objective of this standard is to provide financial statement users with more decision-useful information about the expected 
credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting period. In November 2018, the 
FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments- Credit Losses, which included an amendment of the effective 
date. The standard is effective for the Company for annual reporting periods beginning after December 15, 2022. The Company does not expect the 
adoption of this standard to have a significant impact on its financial statements.
In September 2022, the FASB issued ASU 2022-04, Liabilities-Supplier Finance Programs, to enhance the transparency of supplier finance programs. The 
main objective of this standard requires a buyer in a supplier finance program to disclose sufficient information about the program to allow a user of 
financial statements to understand the program’s nature, activity during the period, changes from period to period, and potential magnitude. The standard is 
effective for the Company for annual reporting periods beginning after December 15, 2022, including interim periods within those fiscal years. The 
Company is currently evaluating the expected impact the adoption of this standard will have on its financial statements.
 
4. Sales of Equity Securities 
 
As part of a warrant repricing and exchange transaction, in January 2020, the Company issued an aggregate of 692,725 new warrants in exchange for the 
exercise of certain warrants issued by the Company in February 2019 and March 2019 for an aggregate of 692,725 shares of common stock and received 
net proceeds of approximately $2.3 million. As a result of the warrant repricing, the exercise price of warrants to purchase an aggregate of 89,657 shares of 
common stock issued by the Company in January 2018 was adjusted from $4.05 to $3.495 per share. In January 2020, the Company issued 192,750 shares 
of common stock pursuant to the partial exercise of the underwriters’ overallotment option from the Company’s December 2019 public offering. The net 
proceeds to the Company from the overallotment closing was approximately $700,000. The warrants issued in connection with the warrant repricing and 
exchange transaction were considered inducement warrants and are classified in equity. In addition, the modification expense associated with the change in 
fair value due to the repricing of February and March 2019 warrants is recorded as inducement expense, which was approximately $191,000. The fair value 
of the warrants issued was approximately $1.9 million. The fair value of the inducement warrants and warrant modification of $2.1 million was expensed 
as warrant inducement expense in the accompanying statement of operations for the year ended December 31, 2021.  
 
On May 12, 2021, the Company entered into a Controlled Equity OfferingSM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co. (the 
“Sales Agent”), under which the Company could issue and sell from time to time up to $25,000,000 of its common stock through or to the Sales Agent, as 
sales agent or principal. The issuance and sale of these shares under the Sales Agreement, if any, is subject to the continued effectiveness of a shelf 
registration statement on Form S-3 cover the sale of such shares. Our shelf registration statement on Form S-3, filed with the SEC on April 24, 2020, is no 
longer available and we will not be able to file a new Form S-3 until, at the earliest, September 1, 2023. Sales of the Company’s common stock, under the 
Sales Agreement are made at market prices by any method that is deemed to be an “at the market offering” as defined in Rule 415(a)(4) under the 
Securities Act of 1933, as amended. Each time the Company wishes to issue and sell common stock under the Sales Agreement, it notifies the Sales Agent 
of the number of shares to be issued, the dates on which such sales are anticipated to be made and any minimum price below which sales may not be made. 
Once the Company has so instructed the Sales Agent, unless the Sales Agent declines to accept the terms of the notice, the Sales Agent has agreed to use its 
commercially reasonable efforts consistent with its normal trading and sales practices to sell such shares up to the amount specified on such terms.
 
The obligations of the Sales Agent under the Sales Agreement to sell the Company’s common stock are subject to a number of conditions that the Company 
must meet. The offering of common stock pursuant to the Sales Agreement will terminate 
95

 
upon the earlier of (1) the sale of all common stock subject to the Sales Agreement and (2) termination of the Sales Agreement as permitted therein. The 
Sales Agreement may be terminated by either party at any time upon ten days’ prior notice. The Sales Agent is entitled to compensation from the Company 
at a fixed commission rate equal to 3.0% of the gross sales price per share of any common stock sold under the Sales Agreement.
 
During 2022, the Company received net proceeds of $0.2 million from the sale of our common stock and issued 219,910 shares of our common stock at a 
weighted average purchase price of $1.29. During 2021, the Company received net proceeds of $14.1 million from the sale of our common stock and 
issued 3,428,680 shares of our common stock at a weighted average purchase price of $4.31 pursuant to the Sales Agreement.
 
5. Payor Liability 
In March 2022, the U.S. Health Resources and Services Administration, or HRSA, informed providers that, after March 22, 2022, it would stop accepting 
claims for testing and treatment for uninsured individuals under the HRSA COVID-19 Uninsured Program and that claims submitted prior to that date 
would be subject to eligibility and availability of funds. HRSA’s procedure for recouping credits due from service providers had been to net these amounts 
against reimbursements for services provided. Given that no further payments are expected from HRSA, there is no longer a mechanism for recoupments. 
The Company has therefore recorded a liability for outstanding HRSA credits which were previously netted against accounts receivable.
 
6. Balance Sheet Details 
The following provides certain balance sheet details (in thousands): 
 
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Inventories
  
     
 
Raw materials
 
$
1,564   $
2,486 
Subassemblies
 
 
401    
324 
Finished goods
 
 
36    
42 
 
 
 
2,001   $
2,852 
Less: inventory reserve
 
 
(1,244)  $
(201)
Total inventories, net
 
$
757   $
2,651 
Fixed Assets
  
     
 
Machinery and equipment
 
$
3,183   $
3,063 
Furniture and office equipment
 
 
160    
161 
Computer equipment and software
 
 
3,824    
2,931 
Leasehold improvements
 
 
689    
634 
Construction in process
 
 
39    
245 
 
 
$
7,895   $
7,034 
Less accumulated depreciation and amortization
 
 
(5,323)   
(4,633)
Total fixed assets, net
 
$
2,572   $
2,401 
Accrued Liabilities
 
     
  
Accrued payroll
 
 
605    
725 
Accrued vacation
 
 
799    
961 
Accrued bonuses
 
 
90    
178 
Accrued sales commissions
 
 
52    
600 
Accrued 401(k) match
 
 
220    
283 
Accrued other
 
 
483    
271 
Total accrued liabilities
 
$
2,249   $
3,018 
 
  
96

 
7. Leases
Financed Leases
The Company leases certain laboratory equipment under arrangements previously accounted for as capital leases, classified on the Company’s balance 
sheet as fixed assets and related lease liabilities, and depreciated on a straight-line basis over the lease term. The equipment under finance leases is 
depreciated on a straight-line basis over periods ranging from approximately 5 to 7 years. The total gross value of equipment capitalized under such lease 
arrangements was approximately $7.2 million and $6.0 million at December 31, 2022 and 2021, respectively. Total accumulated depreciation related to 
equipment under finance leases was approximately $4.1 million and $3.2 million at December 31, 2022 and 2021, respectively. Total depreciation expense 
related to equipment under finance leases was approximately $0.9 million during the years ended December 31, 2022 and 2021.
During the year ended December 31, 2022, the Company entered into finance leases for a total capitalized amount of $1.1 million for three pieces of 
equipment. Under the terms of the financing agreements, the principal balance plus interest for the equipment are to be paid in installments of 36 to 60 
monthly installments of approximately $20,000 totaling approximately $0.9 million through August 2027.
During the year ended December 31, 2021, the Company entered into finance leases for a total capitalized amount of $1.2 million for seven pieces of 
equipment. Under the terms of the financing agreements, the principal balance plus interest for the equipment are to be paid in installments ranging from 36 
to 60 months totaling approximately $1.6 million through March 2026.
Operating Lease
On June 1, 2020, the Company entered into a lease for a 39,000 square foot headquarters, manufacturing and laboratory facility at 9955 Mesa Rim Road in 
San Diego, California. The lease commenced on December 1, 2020 and is for a term of 127 months from the commencement date. The lease included a 
rent abatement period of seven months, from January 2021 through July of 2021, during which period the Company was exempt from paying the amount of 
base rent of $111,000. In addition, the lease stipulated an additional two months of lease abatement period in the event that the property is sold within the 
first six months of the initial lease period. In March 2021, the Company was notified that the original landlord had sold the building, hence the Company 
was eligible for an additional two months of rent abatement period. In addition, the landlord agreed to pay for certain preapproved leasehold improvement 
costs through a one-time leasehold improvement allowance of approximately $1.6 million. The amount of additional leasehold improvement allowance of 
approximately $1.6 million is to be paid back to the landlord during the term of the lease by the Company, amortized at an agreed upon annual rate of 7% 
as an additional rent payment of approximately $18,000 per month. The average monthly cash payment including payment for the additional leasehold 
improvement allowance for the lease is approximately $140,000 per month with initial monthly lease payments of $128,000 per month. The Company 
recorded a lease right-of-use asset and lease liability of $9.8 million as of December 31, 2020, based on the present value of payments and an incremental 
borrowing rate of 12%. As the Company’s lease did not provide an implicit rate, the Company estimated the incremental borrowing rate based on the credit 
quality of the Company and by comparing interest rates available in the market for similar borrowings. The Company recorded $1.6 million in other current 
assets related to reimbursable leasehold improvement costs incurred as of December 31, 2020. The landlord reimbursed the Company $1.8 million during 
the year ended December 31, 2021.
The following schedule represents the components of lease expense for the years ended December 31, 2022 and 2021 (in thousands): 
 
December 31,
 
 
December 31,
 
 
2022
 
 
2021
 
Lease cost
    
   
Finance lease cost
    
   
Amortization of right-of-use assets
$
920   
$
863 
Interest on lease liabilities
 
196   
 
277 
Operating lease cost
 
1,658   
 
1,656 
Total
$
2,774 
 $
2,796 
 
97

 
The following schedule represents maturities of operating and finance lease liabilities as of December 31, 2022 (in thousands): 
 
 
Finance
 
 
Operating
 
 
Minimum
 
 
Minimum
 
 
Lease
 
 
Lease
 
 
Payments
 
 
Payments
 
2023
$
1,200   
$
1,629 
2024
 
770   
 
1,672 
2025
 
396   
 
1,715 
2026
 
192   
 
1,762 
2027
 
15   
 
1,805 
Thereafter
 
-   
 
6,713 
Total payments
 
2,573   
 
15,296 
Less amount representing interest
 
(274)  
 
(5,603)
Present value of payments
$
2,299   
$
9,693 
 
The following schedule sets forth supplemental cash flow information related to operating and finance leases as of December 31, 2022 and 2021 (in 
thousands): 
 
December 31,
 
 
December 31,
 
 
2022
 
 
2021
 
Other information
   
 
   
Operating cash flows from finance leases
$
196 
 $
277 
Operating cash flows from operating lease
$
1,586 
 $
549 
Financing cash flows from finance leases
$
1,305 
 $
1,150 
The aggregate weighted average remaining lease term was 2.55 years on finance leases and 8.50 years on operating leases as of December 31, 2022. The 
aggregate weighted average discount rate was 9.07% on finance leases and 12% on the operating lease as of December 31, 2022.
 
8. Stock-Based Compensation 
Equity Incentive Plans 
The Company has two equity incentive plans: The Amended and Restated 2013 Equity Incentive Plan, or the 2013 Plan, and the 2007 Equity Incentive 
Plan, or the 2007 Plan. The 2013 Plan includes a provision that shares available for grant under the Company’s 2007 plan become available for issuance 
under the 2013 Plan and are no longer available for issuance under the 2007 Plan.
At the Company’s annual meeting of stockholders held on July 16, 2021, the Company’s stockholders approved amendments to the 2013 Plan, which 
included an increase in the number of non-inducement shares of common stock authorized for issuance under the 2013 Plan by 1,300,000 shares. On 
February 14, 2022 and March 22, 2022, the board of directors approved an increase of 1,000,000 and 500,000 shares, respectively, in the inducement shares 
of common stock authorized for issuance under the 2013 Plan.
Stock Options
Non-performance options granted under either plan vest over a maximum period of four years and expire ten years from the date of grant. Non-
performance options generally vest either (i) over four years, 25% on the one-year anniversary of the date of grant and monthly thereafter for the remaining 
three years; or (ii) over four years, monthly vesting beginning month-one after the grant and monthly thereafter. 
The fair value of stock options is determined on the date of grant using the Black-Scholes valuation model. For non-performance awards, such value is 
recognized as expense over the requisite service period using the straight-line method. The amount and timing of compensation expense recognized for 
performance awards is based on management’s estimate of the most likely outcome and when the achievement of the performance objectives is probable. 
The determination of the fair value 
98

 
of stock options is affected by the Company’s stock price, as well as assumptions regarding a number of complex and subjective variables. The volatility 
assumption is based on the historical volatility of the Company’s common stock over a period of time equal to the expected term of the stock options. The 
expected term of employee stock options represents the weighted-average period the stock options are expected to remain outstanding. The expected term 
assumption is estimated based primarily on the options’ vesting terms and remaining contractual life and employees’ expected exercise and post-vesting 
employment termination behavior. The risk-free interest rate assumption is based upon observed interest rates on the grant date appropriate for the term of
the employee stock options. The dividend yield assumption is based on the expectation of no future dividend payouts by the Company. 
The assumptions used in the Black-Scholes pricing model for options granted during the years ended December 31, 2022 and 2021 are as follows: 
 
 
 
2022
 
2021
Stock and exercise prices
 
$0.74 - $2.39
 
$3.62 - $6.03
Expected dividend yield
 
0.00%
 
0.00%
Discount rate-bond equivalent yield
 
0.51% - 4.36%
 
0.52 % - 1.15 %
Expected life (in years)
 
5.50 - 6.03
 
5.0 - 5.98
Expected volatility
 
160% - 180%
 
163.1% - 173.9%
A summary of stock option activity for the years ended December 31, 2022 and 2021 is as follows:
 
 
 
Number of
Shares
   
Weighted
Average Exercise
Price Per Share
   
Weighted
Average
Remaining
Contractual
Term in Years
 
Outstanding at December 31, 2020
  
1,078,704   $
11.64    
9.36 
Granted
  
1,558,510   $
3.96   
   
Exercised
  
(537)   
3.14   
   
Cancelled/forfeited/expired
  
(256,681)  $
7.83   
   
Outstanding at December 31, 2021
  
2,379,996   $
7.07    
9.06 
Granted
  
1,412,900   $
2.10   
   
Cancelled/forfeited/expired
  
(1,529,495)  $
7.28   
   
Outstanding at December 31, 2022
  
2,263,401   $
3.85    
8.86 
Vested and unvested expected to vest, December 31, 
2022
  
2,236,680   $
3.89    
8.81 
 
The intrinsic values of options outstanding, options exercisable, and options vested and unvested expected to vest at December 31, 2022 and 2021 were $0 
and $610, respectively.
Stock-based Compensation Expense 
The following table presents the effects of stock-based compensation related to equity awards to employees and nonemployees on the statement of 
operations during the periods presented (in thousands): 
 
 
 
Years Ended December 31,
 
 
 
2022
   
2021
 
Stock Options
 
     
  
Cost of revenues
 $
628   $
598 
Research and development expenses
  
300    
231 
General and administrative expenses
  
1,860    
1,266 
Sales and marketing expenses
  
439    
367 
Total stock-based compensation
 $
3,227   $
2,462 
 
99

 
As of December 31, 2022, total unrecognized share-based compensation expense related to unvested stock options was approximately $3.7 million and 
such amount is expected to be recognized over a weighted-average period of approximately 2.46 years.
9. Common Stock Warrants Outstanding 
A summary of equity-classified common stock warrant activity, for warrants other than those underlying unexercised overallotment option warrants, during 
2022 and 2021 is as follows:
 
 
 
 
   
 
   
Average
 
 
 
 
   
Weighted
   
Remaining
 
 
 
Number of
   
Average 
Exercise
   
Contractual
 
 
 
Shares
   
Price Per Share    
Term in Years
 
Outstanding at December 31, 2020
   
997,167    $
35.48     
3.3 
Issued
   
—    $
—   
    
Exercised
   
(126,330)   $
3.52   
   
Expired
   
(13,576)   $
569.89   
    
Outstanding at December 31, 2021
   
857,261    $
31.73     
2.2 
Issued
   
—    $
—   
    
Exercised
   
—    $
—   
   
Expired
   
(12,801)   $
606.22   
    
Outstanding at December 31, 2022
   
844,460    $
23.02     
1.3 
 
All warrants outstanding at December 31, 2022 and 2021 are exercisable.
Warrants issued in the February 2019 financing transaction have an expiration date of February 12, 2024, warrants issued in the March 2019 transaction 
have an expiration date of September 19, 2024, warrants issued in the May 2019 inducement offering have an expiration date of December 2, 2024, 
warrants issued in the December 2019 have an expiration date of December 11, 2024, and warrants issued in the January 2020 inducement offering have an
expiration date of July 10, 2025.
The intrinsic value of equity-classified common stock warrants outstanding at December 31, 2022 and 2021 was $0 and $16,000, respectively.
 
10. Net Loss per Common Share 
Basic and diluted net loss per common share is determined by dividing net loss applicable to common shareholders by the weighted-average common 
shares outstanding during the period. Because there is a net loss attributable to common shareholders for the years ended December 31, 2022 and 2021, the 
outstanding RSUs, warrants, and common stock options have been excluded from the calculation of diluted loss per common share because their effect 
would be anti-dilutive. Therefore, the weighted-average shares used to calculate both basic and diluted loss per share are the same.
The following potentially dilutive securities have been excluded from the computations of diluted weighted-average shares outstanding for the periods 
presented, as they would be anti-dilutive: 
 
 
 
 
 
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Common warrants outstanding
   
844,460    
857,261 
RSUs outstanding
   
-    
36 
Convertible preferred stock outstanding (number of 
common stock equivalents)
   
46,541    
46,541 
Common options outstanding
   
2,263,401    
2,379,996 
Total anti-dilutive common share equivalents
   
3,154,402    
3,283,834 
 
100

 
11. Income Taxes 
 For the years ended December 31, 2022 and 2021, the provision for income taxes was calculated as follows (in thousands):  
  
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Current:
  
    
 
Federal
 $
—   
$
— 
State
  
(125)   
125 
Total
  
(125)   
125 
Deferred
 
    
  
Federal
  
—   
 
— 
State
  
—   
 
— 
Total
  
—   
 
— 
Provision for income tax
 $
(125)  $
125 
 
The following table reconciles income taxes computed at the federal statutory rate and the Company’s provision for income taxes (in thousands): 
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Income tax at statutory rate
 $
(6,766)  $
(567)
Change in federal tax rate
 
   
  
— 
State liability
  
(1,694)   
66 
Permanent items
  
210 
  
278 
Stock compensation
  
960 
  
178 
Warrant inducement
  
— 
  
— 
Expiration of net operating losses
  
710 
  
594 
Research and development credit
  
(178)   
(377)
Unrecognized tax benefits
  
125 
  
2,956 
State rate change
  
76 
  
(480)
Estimated section 382 limitation
  
(358)   
(485)
Return to provision
  
(132)   
(8)
Other
  
131 
  
28 
Valuation allowance
  
6,791 
  
(2,058)
Provision for income tax
 $
(125)
 $
125 
 
Deferred income taxes are provided for temporary differences in recognizing certain income and expense items for financial and tax reporting purposes. 
The deferred tax assets consisted primarily of the income tax benefits from accruals, estimated net operating loss carryforwards, and estimated research and 
development credits. Valuation allowances have been recorded to fully offset deferred tax assets at December 31, 2022 and 2021, as it is more likely than 
not that the assets will not be utilized.
At December 31, 2022, the Company had estimated federal net operating loss carryforwards of approximately $91.3 million with $80.7 million net 
operating losses generated in tax years beginning after December 31, 2017 carrying forward indefinitely and may generally be used to offset up to 80% of 
future taxable income. Additionally, the remaining estimated net operating loss carryforwards of approximately $10.6 million will begin to expire in 2023. 
The Company has additional state net operating losses of $66.8 million with $3.6 million net operating losses generated after December 31, 2017, carrying 
forward indefinitely and may generally be used to offset up to 80% of future taxable income. Additionally, the remaining estimated net operating loss 
carryforwards of approximately $63.2 million will begin to expire in 2027. Additionally, at December 31, 2022, the Company had estimated research and 
development tax credits of approximately $1.0 million and $4.0 million for federal and California purposes, respectively. The federal research and 
development tax credits will begin to expire in 2023. The California research and development tax credits do not expire.
101

 
For the years ended December 31, 2022 and 2021, the Company has evaluated the various tax positions reflected in its income tax returns for both federal 
and state jurisdictions, to determine if the Company has any uncertain tax positions on the historical tax returns. The Company recognizes the impact of an 
uncertain tax position on an income tax return at the largest amount that the relevant taxing authority is more-likely-than not to sustain upon audit. The 
Company does not recognize uncertain income tax positions if they have less than 50% likelihood of being sustained. Based on this assessment, the 
Company believes there are tax positions for which a liability for unrecognized tax benefits should be recorded as of December 31, 2022 and 2021. The 
following table summarizes the activity related to our gross unrecognized tax benefits (in thousands):
 
 
 
December 31,
   
December 31,
 
 
 
2022
   
2021
 
Current:
  
    
 
Balance at the beginning of the year
 $
3,679    $
— 
Adjustments related to prior year tax positions
 
25     
3,640 
Increases related to current year tax positions
 
118     
39 
Decreases for tax positions from prior years
 
—     
— 
Provision for income tax
 $
3,822    $
3,679 
 
The Company is subject to U.S. federal income tax as well as income tax in multiple state jurisdictions. With few exceptions, the Company is no longer 
subject to U.S. federal income tax examinations for tax years ending on or before December 31, 2018, and state and local income tax examinations for tax 
periods ending on or before December 31, 2001. However, to the extent allowed by law, the tax authorities may have the right to examine prior periods 
where net operating losses were generated and carried forward and make adjustments up to the amount of the net operating loss carryforward amount. The 
Company’s policy is to recognize interest and penalties related to income tax matters in income tax expense. Due to the existence of the valuation 
allowance, future changes in unrecognized tax benefits will not impact the Company’s effective tax rate. The Company is currently not under examination 
by any taxing authorities and does not believe its unrecognized tax benefits will significantly change in the next twelve months.	 	
	
	
	
	
The tax effects of carryforwards and other temporary differences that give rise to deferred tax assets consist of the following (in thousands):  
 
 
 
For the year ended December 31,
 
 
 
2022
   
2021
 
Estimated net operating loss carryforward
 $
23,598    $
18,482 
Estimated research and development credits
  
1,032     
1,026 
Capitalized research and development
  
1,490     
470 
Accruals and other
  
3,234     
2,046 
Operating lease liability
  
2,648     
2,821 
Fixed assets
  
417     
368 
Stock based compensation
  
617     
1,164 
 
  
33,036     
26,377 
 
 
     
  
Right-of-use asset
  
(3,161)   
(3,295)
Gross deferred tax liabilities
  
(3,161)   
(3,295)
 
 
     
  
Less valuation allowance
  
(29,875)   
(23,082)
Net deferred tax assets
 $
—    $
— 
 
Utilization of the estimated domestic net operating loss and research and development tax credit carryforwards may be subject to a substantial annual 
limitation due to ownership change limitations that may have occurred or that could occur in the future, as required by Sections 382 and 383 of the Code, as 
well as similar state provisions. These ownership changes may limit the amount of estimated net operating loss and research and development credit 
carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an “ownership change” as defined by Section 
382 of the Code results from a transaction or series of transactions over a three-year period resulting in an ownership change of more than 50 percentage 
points by value of the outstanding stock of a company by certain stockholders. Since the Company’s formation, the 
102

 
Company has raised capital through the issuance of capital stock on several occasions which on its own or combined with the purchasing stockholders’ 
subsequent disposition of those shares, likely resulted in such an ownership change, or could result in an ownership change in the future.	
	
	
Upon the occurrence of an ownership change under Sections 382 and 383 of the Code as outlined above, utilization of the estimated net operating loss and 
research and development credit carryforwards are subject to an annual limitation, which is determined by first multiplying the value of the Company’s 
stock at the time of the ownership change by the applicable long-term, tax-exempt rate, which could be subject to additional adjustments, as required. Any 
limitation may result in expiration of a portion of the estimated net operating loss or research and development tax credit carryforwards before utilization. 
The Company has not yet completed an analysis to determine whether an ownership change has occurred, however, the Company believes multiple 
ownership changes have likely occurred. As a result, the Company has estimated that the use of its net operating loss carryforwards is limited and has 
disclosed in the table above only the amounts it estimates could be used in the future, which remain fully offset by a valuation allowance to reduce the net 
asset to zero.
The Tax Cuts and Jobs Act (TCJA) requires tax payors to capitalize and amortize research and development (R&D) expenditures under section 174 for tax 
years beginning after December 31, 2021. This rule became effective for the Company during the year and resulted in the capitalization of R&D costs of 
approximately $5.2 million.  The Company will amortize these costs for tax purposes over 5 years if the R&D was performed in the U.S. and over 15 years 
if the R&D was performed outside the U.S.	 	
	
	
	
	
 
12. Related Party Transactions
A former member of the Company’s management is the controlling person of Aegea Biotechnologies, Inc., or Aegea. On September 2, 2012, the Company 
entered into an Assignment and Exclusive Cross-License Agreement, or the Cross-License Agreement, with Aegea. The Company received payments 
totaling approximately $0 and $49,000 during the years ended December 31, 2022 and 2021, respectively, from Aegea as reimbursements for shared patent 
costs under the Cross-License Agreement. On December 11, 2019, the Company entered into a First Amendment to Assignment and Exclusive Cross-
License Agreement with Aegea pursuant to which the Company obtained a royalty bearing license for a certain patent. On May 22, 2022, the Company 
entered into a Second Amendment to Assignment and Exclusive Cross-License Agreement with Aegea pursuant to which the Company obtained a royalty-
free license for a certain patent and Aegea obtained certain patents. 
 
13. Commitments and Contingencies 
In the normal course of business, the Company may be involved in legal proceedings or threatened legal proceedings. The Company is not party to any 
legal proceedings or aware of any threatened legal proceedings except as provided in the paragraph below, and except for those proceedings that are not 
expected to have a material adverse effect on the Company’s financial condition, results of operations or liquidity.

 
The Company was in mediation with former employees regarding disputed claims for certain sales commissions. Although the Company was not in 
agreement with their interpretations or claims, the Company entered into settlement negotiations related to the disputed commissions. The matter was 
resolved in June 2022 for approximately $1.7 million and was recorded within sales and marketing expense.

 
14. Subsequent Events
From January 1, 2023 through the issuance of the financial statements, the Company sold and issued 707,114 shares of our common stock at a weighted 
average purchase price of $0.57 under the Company’s at-the-market equity facility, for net proceeds of $0.4 million.
On January 6, 2023, the Company announced that it had commenced a process to explore and evaluate strategic alternatives to enhance shareholder value, 
and that in connection with such process and in order to extend the Company's resources, the Company has implemented a restructuring plan that resulted 
in a reduction of the Company's workforce by approximately 36%. The Company has incurred charges of approximately $0.8 million for severance and 
other employee termination-related costs in the first quarter of 2023. The Company may also incur additional costs not currently contemplated due to 
events that may occur as a result of, or that are associated with its workforce reduction.
103

 
On March 16, 2023, the Company terminated the employment of Michael C. Dugan, M.D., the Company’s Senior Vice President, Chief Medical Officer 
and Medical Director, effective March 17, 2023. In connection with his termination, the Company entered into a separation agreement, in exchange for a 
release of claims, and agreed to provide severance benefits of approximately $0.1 million, to be made during the year ending December 31, 2023.
 
 
 
 
 
104

 
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure. 
Not applicable. 
Item 9A. Controls and Procedures. 
 
Disclosure Controls and Procedures
 
We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic and current reports that 
we file with the SEC is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such 
information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, 
to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that 
any controls and procedures, no matter how well designed and operated, can provide only reasonable and not absolute assurance of achieving the desired 
control objectives. In reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit 
relationship of possible controls and procedures. In addition, the design of any system of controls also is based in part upon certain assumptions about the 
likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; 
over time, control may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. 
Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.
 
We carried out an evaluation, under the supervision and with the participation of our management, including our principal executive officer and principal 
financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) 
under the Exchange Act, as of December 31, 2022, the end of the period covered by this report. Based on this evaluation, our principal executive officer
and principal financial officer concluded that our disclosure controls and procedures were not effective at the reasonable assurance level as of December 
31, 2022 due to the material weaknesses in internal control over financial reporting described below.
Management’s Report on Internal Control over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act 
Rules 13a-15(f) and 15d-15(f). Because of its inherent limitations, internal control over financial reporting may not prevent or detect all misstatements. 
Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and 
presentation.
Following the original issuance of our financial statements for the three and nine months ended September 30, 2021 included in our quarterly report on 
Form 10-Q, filed with the SEC on November 15, 2021 (the “Original September 30, 2021 Financial Statements”), we discovered that we had failed to 
accrue for, and reflect in the Original September 30, 2021 Financial Statements, certain expenses incurred during the third quarter of 2021 in the amount of 
approximately $1.1 million. This resulted in the restating of our financial statements as of and for the nine months ended September 30, 2021. We 
determined that our review control over the completeness and accuracy of our accounts payable did not operate effectively, resulting in a material error in 
the Original September 30, 2021 Financial Statements. 
In connection with the preparation of our Annual Report on Form 10-K for the year ended December 31, 2021 and the preparation of our Quarterly Report 
on Form 10-Q as of and for the three month period ended March 31, 2022, we discovered additional material weaknesses related to the (i) operating 
effectiveness of our internal controls to determine certain estimates and the timely review of such estimates and (ii) operating effectiveness of our internal 
controls to review and approve certain revenue related manual journal entries, including the review of the completeness and accuracy of information used. 
While preparing the financial statements included in this Annual Report on Form 10-K, we discovered that there was an error in the inputs used within the 
black-scholes calculation for options granted in April 2019. Further, we discovered there was an error associated with the acceleration of stock-based 
compensation recorded in the financial statements included in our quarterly report on Form 10-Q for the quarter ended March 31, 2022 (the “Original 
March 31, 2022 Financial Statements”). We determined that our review control over the completeness and accuracy of information used when calculating 
stock-based 
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compensation expense did not operate effectively, resulting in a material error in the Original March 31, 2022 Financial Statements.
In addition, we discovered an error in our revenue and accounts receivable reconciliation process, such that the correct accounts receivable and 
corresponding revenue activity was not properly reflected in the Original June 30, 2022 Financial Statements. We also discovered through our revenue 
recognition and accounts reconciliation process that changes in payor class and implicit price concessions were not appropriately reflected in the Original 
September 30, 2022 Financial Statements, which is the period in which they were known. We determined that our review control over the completeness and 
accuracy of data used in estimating net revenues and accounts receivable, as well as our control over the reconciliation process did not operate effectively, 
resulting in a material error in the Original June 30, 2022 Financial Statements and the Original September 30, 2022 Financial Statements.
We conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control—Integrated 
Framework (2013 Framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on our evaluation under the 
framework in Internal Control—Integrated Framework, our management concluded that our internal control over financial reporting was not effective as of 
December 31, 2022 based on the material weaknesses described above, none of which have been remediated yet.
A material weakness, as defined in Rule 12b-2 under the Exchange Act, is a deficiency, or a combination of deficiencies, in internal control over financial 
reporting, such that there is a reasonable possibility that a material misstatement of a company’s annual or interim financial statements will not be 
prevented or detected on a timely basis.
This annual report does not include an attestation report of our independent registered public accounting firm regarding internal control over financial 
reporting. Our report was not subject to attestation by our independent registered public accounting firm pursuant to the rules of the SEC that permit us to 
provide only management’s report in this report.
 
Changes in Internal Control Over Financial Reporting
 
An evaluation was also performed under the supervision and with the participation of our management, including our principal executive officer and 
principal financial officer, of any change in our internal control over financial reporting that occurred during our last fiscal quarter and that has materially 
affected, or is reasonably likely to materially affect, our internal control over financial reporting. That evaluation did not identify any changes in our 
internal control over financial reporting that occurred during the three months ended December 31, 2022 that have materially affected, or are reasonably 
likely to materially affect, our internal control over financial reporting.
 
Remediation Actions to Date
 
We implemented certain improvements to our internal control and financial reporting processes to address the material weaknesses identified above. These 
improvements include the following:
 
•
During the first quarter of 2022, we engaged a “Big Four” accounting firm under an advisory engagement to be conducted under the 
AICPA Standards for Consulting Services to assist management with their internal controls review.
•
During the second quarter of 2022, we began the process for designing and implementing the recommendations from the internal 
control review done during the first quarter of 2022.
•
During the second and third quarters of 2022, our accounting department was substantially overhauled.
•
During the third and fourth quarters of 2022, we continued the process of designing and implementing controls based off the 
recommendation from the "Big Four" internal controls review.
 
We are committed to maintaining a strong internal control environment and implementing measures to ensure that the control deficiencies identified above
are remediated as soon as possible. Management is in the process of implementing a remediation plan, which includes steps to design and implement new 
controls and expand the review of any potential unrecorded liabilities. 
 
We have implemented certain aspects of our remediation plan but will need to design and implement additional controls related to the material weaknesses
identified above. Moreover, we do not believe that any of our remedial controls have been fully 
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implemented or operated for a sufficient period of time or number of occurrences to allow for sufficient testing to determine the controls’ operating 
effectiveness. 
 
The remediation actions are being monitored by the Audit Committee of our Board of Directors.
 
Item 9B. Other Information. 
Not applicable.
 
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.
Not applicable.
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PART III
Item 10. Directors, Executive Officers and Corporate Governance. 
Code of Conduct and Ethics
We have adopted a code of ethics that applies to our Chief Executive Officer and other senior financial officers (our Chief Financial Officer, Controller and 
other senior financial officers performing similar functions), which we refer to as the Code of Business Conduct and Ethics. The Code of Business Conduct 
and Ethics is available on our website at www.biocept.com under the Corporate Governance section of the Investor Relations portion of the website. Our 
Code of Business Conduct and Ethics is designed to meet the requirements of Section 406 of Regulation S-K and the rules promulgated thereunder. We will 
promptly disclose on our website (i) the nature of any amendment to the Code of Business Conduct and Ethics that applies to any covered person, and (ii) 
the nature of any waiver, including an implicit waiver, from a provision of the Code of Business Conduct and Ethics that is granted to one of the covered 
persons. 
EXECUTIVE OFFICERS AND DIRECTORS
Our executive officers and non-employee directors, and their respective ages and positions with us as of the date of this Annual Report, are as follows:
 
Name
 
Age
 
Position
Executive Officers
 
 
 
 
Samuel D. Riccitelli
 
64
 
Interim President and Chief Executive Officer and Chair of the Board of 
Directors
Antonino Morales, CPA
 
67
 
Interim Chief Financial Officer and Director
Philippe Marchand, Ph.D.
 
59
 
Chief Operations Officer
Darrell Taylor
 
58
 
Chief Legal Officer and Chief Compliance Officer, Corporate Secretary
Non-Employee Directors
 
 
 
 
M. Faye Wilson, MBA
 
85
 
Lead Independent Director
Marsha A. Chandler, Ph.D.
 
78
 
Director
Bruce E. Gerhardt, CPA
 
72
 
Director
Quyen Dao-Haddock, CPA
 
47
 
Director
Linda Rubinstein
 
56
 
Director
Ivor Royston, M.D.
 
78
 
Director
 
Samuel D. Riccitelli has served as our Interim President and Chief Executive Officer since February 2022, as our Chair of the Board since June 2021, and 
as a member of board of directors since October 2020. Mr. Riccitelli has been in the healthcare industry for more than 35 years. He has served as a member 
of the Board of Directors of Orthopediatrics, Corp since 2017, a company focused exclusively on the orthopedic implant needs of children. He recently 
served as Chief Executive Officer of Pathnostics, LLC, a molecular diagnostics company focused on improving antibiotic stewardship, from 2019 to 2020. 
From 2017 to 2019, Mr. Riccitelli served as Chairman of the Board of Directors of Precipio, Inc., a diagnostic services company. From 2012 to 2017, Mr. 
Riccitelli served as President and Chief Executive Officer and a Director of Signal Genetics, Inc., a publicly traded molecular diagnostic company that was 
ultimately sold to Miragen Therapeutics, Inc. Mr. Riccitelli was also previously the Executive Vice President and Chief Operating Officer of Genoptix, 
Inc., a publicly traded diagnostic company that was sold to Novartis in 2011. Mr. Riccitelli served in a number of research and development and general 
management leadership positions for Becton, Dickinson and Company and as a board member for BD Ventures, LLC., a venture capital fund. Mr. Riccitelli 
received a B.A. from Washington and Jefferson College and a M.S. Engineering degree from The University of Texas. We selected Mr. Riccitelli to serve 
on our board of directors due to his experience and expertise in the healthcare industry. 
Antonino Morales, CPA has served as our Interim Chief Financial Officer since February 2022 and as a member of our board of directors since July 2021. 
Mr. Morales has more than 30 years of broad leadership experience in the United States and Latin America. Mr. Morales served as President and Chief 
Executive Officer of Apoyo Financiero, Inc. from June 2017 to March 2020. Mr. Morales has held senior executive roles with multiple Fortune 100 
companies including Citigroup, Bank of America 
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and Arthur Andersen. Mr. Morales provides operational, market development and financial consulting services as an independent consultant for early-stage 
companies and Fortune 500 companies. His clients have included Mazda North America, Mazda de Mexico, PriceSmart, Inc. and Reliance Steel & 
Aluminum Co.  Mr. Morales received a B.S. in Finance from the University of Southern California and is a licensed CPA. We selected Mr. Morales to serve 
on our board of directors due to his experience in executive leadership and his substantial knowledge and expertise in operational, market development, 
financial and accounting matters.
Philippe Marchand, Ph.D. joined us as Chief Operations Officer in March 2022. Prior to his appointment as Chief Operations Officer, Dr. Marchand,
served as a consultant to our Company since February 2022, providing operational services. Dr. Marchand served as Chief Operating Officer of Biosplice 
Therapeutics, Inc., or Biosplice, a privately held biopharmaceutical company, from January 2017 until March 2022, and as Senior Vice President, 
Operations of Biosplice from March 2015 to January 2017. Dr. Marchand received an M.S. and a Ph.D. from the Université de Haute Alsace, France.
Darrell Taylor joined us as Senior Vice President, General Counsel, and Chief Compliance Officer in December 2021. In February 2022, Mr. Taylor was 
promoted to Chief Legal Officer and Chief Compliance Officer. Before joining our company, Mr. Taylor served as Chief Compliance Officer for Precision 
Diagnostics from July 2020 to December 2021, and as Associate General Counsel for Sorrento Therapeutics from January 2018 to June 2020. Mr. Taylor 
was an attorney with DLA Piper from 2005 to 2013. Mr. Taylor earned his J.D. from the University of Notre Dame Law School and his B.S.M.T. from The 
University of Texas Medical Branch.
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Non-Employee Directors
M. Faye Wilson, MBA has served on our board of directors since 2009 and as our lead independent director since February 2022. Ms. Wilson currently 
serves as chair of our audit committee, as a member of our compensation committee and as a member of our nominating and corporate governance 
committee. Ms. Wilson is retired CEO of Wilson Boyles and Company, a business consulting firm specializing in the development and implementation of 
successful business strategies. Prior to co-founding Wilson Boyles in 2003, she served as Senior Vice-President, Value Initiatives and Risk Management for 
The Home Depot, having joined the company in 1998 following a 21-year career at Bank of America. Ms. Wilson was Executive-Vice President of Bank of 
America and Chairman and President of Security Pacific Financial Services, a wholly owned subsidiary of Bank of America Corporation. Ms. Wilson 
began her banking career as a management trainee in the Corporate Banking Group of Security Pacific National Bank, which merged with and became 
Bank of America in 1992. Prior to assuming the chairmanship of Security Pacific Financial Services, she was the Executive Vice-President responsible for 
overseeing credit quality and policy for over 80% of Bank of America’s loan portfolio. During her Security Pacific career, Ms. Wilson spent time in 
London as the Managing Director of Corporate Finance for Security Pacific Hoare Govett, where she created new corporate advisory services, debt 
structuring products and formed a cross-border mergers and acquisitions division for European and U.S. companies. Prior to the London assignment, she 
was Managing Director of the Leveraged Buyout Group for the Security Pacific Merchant Bank. Earlier, Ms. Wilson served as Senior Vice-President and 
Regional Manager in the Corporate Banking Division with responsibility for multinational corporations, retail industry companies and California based 
corporations. Ms. Wilson has served as a director on the boards of BioMed Realty Trust, Inc., a real estate investment trust, until its acquisition by 
Blackstone Real Estate Partners VIII in 2016, Farmers Insurance Group, The Home Depot, SKM, a Russian public company, Community National Bank 
and trustee of The Salk Institute. Currently she serves as a member of the Audit Committee of Sharp Health Group and IQHQ REIT. Ms. Wilson received 
master’s degrees in international relations and in business administration from the University of Southern California. We selected Ms. Wilson to serve as 
Lead Independent Director of our board of directors due to her extensive experience as a director of public companies, her financial acumen and 
experience, and her expertise in business strategy. 
Marsha A. Chandler, Ph.D. has served on our board of directors since 2013. She currently serves as chair of our nominating and corporate governance 
committee, as a member of our compensation committee, and as a member of our science and technology committee. Dr. Chandler is Senior Vice 
Chancellor and Professor Emerita at the School of Global Policy and Strategy at the University of California, San Diego (UCSD). She is also currently an 
Advisor to the College of Health, Lehigh University and Advisor to the Jackson School of Geosciences, and Texas Global at the University of Texas at 
Austin. Dr. Chandler is also a member of the Board of Directors of the Corporate Directors Forum. She served as the Executive Vice-President and Chief 
Operating Officer of the Salk Institute for Biological Studies from 2007 to 2015, where she managed approximately 1,000 scientific and administrative 
personnel and oversaw all institutional fiscal, administrative and fund-raising activities. From 1997 to 2007 she was the Senior Vice Chancellor for 
Academic Affairs at UCSD, where she was the chief academic officer responsible for the policies and decisions relating to research and teaching programs, 
faculty appointments and performance, and the fiscal, human resources and facilities functions on the general campus. Dr. Chandler is a Fellow of the 
Royal Society of Canada. She received her Ph.D. from The University of North Carolina at Chapel Hill. In 2004, she completed the Advanced 
Management Program at Harvard Business School. We selected Dr. Chandler to serve on our board of directors due to her experience in organizational 
management, strategy, and her stature in the life sciences community.
Bruce E. Gerhardt, CPA has served on our board of directors since 2010. He currently serves as chair of our compensation committee and as a member of 
our audit committee. Mr. Gerhardt has been self-employed, practicing as a Certified Public Accountant, since 1986. He is also a tax and business advisor
providing tax compliance for small businesses and upper income individuals. Prior to 1986, he was a financial vice-president with several companies and a 
senior accountant with Peat Marwick Mitchell, now KPMG. He earned his B.A. from the University of Southern California in 1973 and is a member of the 
American Institute of Certified Public Accountants. We selected Mr. Gerhardt to serve on our board of directors due to his experience and expertise in 
financial accounting and auditing.
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Quyen Dao-Haddock, CPA has served on our board of directors since November 2022. She currently serves as a member of our audit committee. Ms. Dao-
Haddock has served as the Controller of IQHQ, Inc. since April 2020.  Since September 2021, she has served as a member of the Audit Committee and 
Compliance Committee of Sharp Healthcare. From January 2019 through March 2020, Ms. Dao-Haddock was the Chief Accounting Officer of Presidio 
Property Trust, Inc., a publicly traded real-estate investment trust (REIT), where she was responsible for all financial and accounting operations. From 
November 2011 through January 2019, she was Corporate Controller of American Assets Trust, Inc., an NYSE-listed REIT. From December 2010 through 
November 2011, Ms. Dao-Haddock was Controller at Pacific Corporate Group, LLC, a private equity firm. She began her career as an Audit Manager at 
KPMG LLP from 1999 through 2006, and received a BS in Business Administration, Accounting from San Diego State University in 1998. She is a 
certified public accountant (CPA) with more than 20 years of financial and accounting experience including overseeing technical accounting, budgeting, 
forecasting, financial modeling, cash management, and SEC reporting. We selected Ms. Dao-Haddock to serve on our board of directors due to her 
extensive experience and expertise in financial accounting.
Ivor Royston, M.D. has served on our board of directors since 2010. He currently serves as chair of our science and technology committee and as a member
of our nominating and corporate governance committee. Dr. Royston has served as President, Chief Executive Officer from 2015 to 2022 and continues to 
serve on the board of directors of Viracta Therapeutics, Inc., since 2015. From 1990 to 2000, he served as founding President and CEO of The Sidney 
Kimmel Cancer Center and from 1978 to 1990, he was a member of the oncology faculty of the University of California, San Diego. In addition to being a 
co-founder of Hybritech, Inc., in 1986 he co-founded IDEC Corporation, which later merged with Biogen to form Biogen Idec. From 1990 to 2017, Dr. 
Royston was the Founding Managing Partner of Forward Ventures and has been instrumental in the formation, financing and development of numerous 
biotechnology companies. Dr. Royston received his B.A. and M.D. degrees from Johns Hopkins University and completed post-doctoral training in internal 
medicine and medical oncology at Stanford University. In 1997, President Clinton appointed Dr. Royston to a six-year term on the National Cancer 
Advisory Board. In 2022, Dr. Royston was the recipient of the Biotechnology Heritage Award given out each year by BIO and the Science History 
Institute. We selected Dr. Royston to serve on our board of directors due to his extensive experience with emerging life sciences companies. 
Linda Rubinstein has served on our board of directors since July 2021. She currently serves as a member of our compensation committee and as a member 
of our science and technology committee. Ms. Rubinstein has over 35 years of experience across the finance, capital markets, operations and the life 
sciences sectors. Since September 2010 she has been a partner at FLG Partners, LLC, a chief financial officer services and board advisory consulting firm. 
During that time she has served as chief financial officer, interim chief financial officer or financial advisor for multiple clients, including Adverum 
Biotechnologies, Alector, Apexigen, RenovoRx, Five Prime Therapeutics, Ingenuity Systems (now part of QIAGEN), iPierian (acquired by Bristol-Myers 
Squibb), Kezar Life Sciences, Medikine, PaxVax, True North Therapeutics and others. From January 2020 to April 2021 Ms. Rubinstein was chief financial 
officer consultant to Sublimity Therapeutics Holdco Limited (“Sublimity”) and also served as Treasurer of Sublimity Therapeutics, Inc., Sublimity’s 
indirect subsidiary. Earlier, Ms. Rubinstein was vice president and CFO of Solexa (now part of Illumina), vice president of finance at ChemoCentryx and a 
senior vice president in Lehman Brothers’ global healthcare investment banking group. She holds a B.A. and an M.A. in Economics from the University of 
California, Los Angeles. We selected Ms. Rubinstein to serve on our board of directors due to her experience in executive leadership roles at various life 
sciences companies and her substantial knowledge of strategic finance and business operational issues. 
 
CORPORATE GOVERNANCE
Director Independence
Our board of directors has affirmatively determined that all of our directors, except Mr. Riccitelli and Mr. Morales, meet the definition of “independent 
director” under the applicable Nasdaq Listing Rules.
Agreements with Directors
None of the directors or nominees for director was selected pursuant to any arrangement or understanding, other than with our directors acting within their 
capacity as such.
Legal Proceedings with Directors
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There are no legal proceedings related to any of the directors or director nominees, officers, or holders of 5% or more of our common stock which require 
disclosure pursuant to Items 103 or 401(f) of Regulation S-K.
Board Leadership Structure
Historically, the positions of chair of the board and Chief Executive Officer have been separated. The separation of the positions of board chair and Chief 
Executive Officer was meant to reinforce the independence of the board in its oversight of the business and affairs of the Company. In addition, the 
Company believed that having an independent board chair created an environment that was conducive to objective evaluation and oversight of 
management’s performance, increasing management accountability and improving the ability of the board to monitor whether management’s actions are in 
the best interests of the Company and its stockholders. In connection with the resignation of our former Chief Executive Officer in February 2022, our 
board of directors appointed the chair of our board of directors, Samuel D. Riccitelli, as Interim President and Chief Executive Officer. Our board of 
directors believe this appointment was in the best interests of our stockholders and was necessary to ensure continued leadership of our company by 
someone with both knowledge of our company and significant and extensive executive and leadership experience, including as the chief executive officer 
of other molecular diagnostics companies.
Our board of directors continues to believe that independent board leadership helps to reinforce the independence of the board as a whole and is important 
for effective corporate governance. Accordingly, concurrently with the appointment of Mr. Riccitelli as Interim President and Chief Executive Officer, our 
board of directors established the position of lead independent director and appointed Faye Wilson to serve in such capacity. The lead independent director 
is empowered to, among other duties and responsibilities, approve agendas and meeting schedules for regular board meetings, preside over board meetings 
in the absence of the board chair, preside over and establish the agendas for meetings of the independent directors, act as liaison between the chair and the 
independent directors, approve information sent to the board, preside over any portions of board meetings at which the evaluation or compensation of the 
Interim Chief Executive Officer is presented or discussed and, as appropriate upon request, act as a liaison to stockholders. In addition, it is the 
responsibility of the lead independent director to coordinate between the board and management with regard to the determination and implementation of 
responses to any problematic risk management issues. As a result, the Company believes that the lead independent director can help ensure the effective 
independent functioning of the Board in its oversight responsibilities. In addition, the Company believes that the lead independent director is better 
positioned to build a consensus among directors and to serve as a conduit between the other independent directors and the board chair, for example, by 
facilitating the inclusion on meeting agendas of matters of concern to the independent directors.
The independent directors regularly meet in executive sessions in connection with regular meetings of the board of directors.
Board Role in Risk Oversight
Risk is inherent with every business, and how well a business manages risk can ultimately determine its success. We face a number of risks, including risks 
relating to our operations, strategic direction, cybersecurity, and intellectual property. Management is responsible for the day-to-day management of risks 
we face, while our board of directors, as a whole and through its committees, has responsibility for the oversight of risk management. In its risk oversight 
role, our board of directors has the responsibility to satisfy itself that the risk management processes designed and implemented by management are 
adequate and functioning as designed.
The role of our board of directors in overseeing the management of our risks is conducted primarily through committees of our board of directors, as 
disclosed in the descriptions of each of the committees below and in the charters of each of the committees. The full board of directors (or the appropriate 
board committee in the case of risks that are under the purview of a particular committee) discusses with management our major risk exposures, their 
potential impact on us, and the steps we take to manage them. When a board committee is responsible for evaluating and overseeing the management of a 
particular risk or risks, the chairperson of the relevant committee reports on the discussion to the full board of directors during the committee reports 
portion of the next board meeting.
Board and Committee Meetings
During 2022, our board of directors met 13 times. Each director attended at least 75% of the meetings held while he or she was a director, either in person 
or by teleconference. Additionally, during 2022, each director attended at least 75% of the meetings for each committee on which he or she served.
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Director Attendance at Annual Meetings
Although we do not have a formal policy regarding attendance by members of our board of directors at our annual meetings of stockholders, we encourage 
all of our directors to attend. All of our directors as of our 2022 annual meeting of stockholders, except Mr. Hale, attended our 2022 annual meeting of 
stockholders.
Executive Sessions
In accordance with the applicable Nasdaq Listing Rules, our independent directors meet in regularly scheduled executive sessions at which only 
independent directors are present.
Board Committees
Our board of directors has four standing committees: the audit committee, the compensation committee, the nominating and corporate governance 
committee, and the science, technology, and clinical affairs committee. In addition, from time to time, special committees may be established under the 
direction of our board of directors when necessary to address specific issues.
Each of the four standing committees has a written charter that has been approved by our board of directors. A copy of each charter is available on our 
website at www.biocept.com by selecting the “Investors” icon at the top of the page, followed by the “Corporate Governance” hyperlink.
The members of each committee for the year ended December 31, 2022 are identified in the following table:
 
Name
 
Audit
Committee
   
Compensation
Committee
   
Nominating and
Corporate 
Governance
Committee
   
Science, 
Technology,
and Clinical 
Affairs
Committee
 
David F. Hale
 
Member
     
—     
—   
Member
 
Marsha A. Chandler, Ph.D.
   
—   
Member
   
Chair
   
Member
 
Bruce E. Gerhardt, CPA
 
Member
   
Chair
     
—     
— 
Samuel D. Riccitelli
   
—     
—     
—     
— 
Linda Rubinstein
   
—   
Member
     
—   
Member
 
Ivor Royston, M.D.
   
—     
—   
Member
   
Chair
 
Antonino Morales, CPA 
 
Member
     
—     
—     
— 
M. Faye Wilson, MBA
 
Chair
   
Member
   
Member
     
— 
Quyen Dao-Haddock, CPA
 
Member
     
—     
—     
— 
Total meetings in 2022
   
10     
3     
6     
1 
 
(I)
Ms. Wilson became the Lead Independent Director in February 2022.
(1)
Mr. Hale became a member of the audit committee in February 2022. Mr. Hale was a member of the board of directors until his retirement in July 
2022.
(2)
Mr. Morales was a member of the audit committee until he was appointed as the Company’s Interim Chief Financial Officer in February 2022.
(3)
Ms. Dao-Haddock became a member of the board of directors and a member of the audit committee in November 2022.
(4)
Ms. Rubinstein became a member of the science, technology, and clinical affairs committee in August 2022 following the retirement of Mr. Hale.
Audit Committee
During 2022, our audit committee met ten times. Our audit committee is currently composed of three directors: Ms. Wilson (who chairs the audit 
committee), Ms. Dao-Haddock and Mr. Gerhardt. Each of the members of the audit committee has been determined to be an independent director under 
applicable SEC rules and the applicable Nasdaq Listing Rules. Our board of directors has affirmatively determined that Ms. Wilson is designated as an 
“audit committee financial expert.”
Our audit committee’s responsibilities include:
•
oversee the integrity of our financial statements and other financial information provided by us to our stockholders and others;
113
(1)
(4)
(2)
(I)
(3)

 
•
Monitor the periodic reviews that are conducted by our financial and senior management and by our independent auditors of the adequacy of 
our auditing, accounting and financial reporting processes and systems of internal control;
•
oversee the qualifications, independence and performance of our independent auditors;
•
oversee compliance with legal, regulatory and public disclosure requirements; and
•
facilitate communication among our independent auditors, our financial and senior management, and the board.
Our board of directors has determined that Ms. Wilson qualifies as an audit committee financial expert within the meaning of SEC regulations and meets 
the financial sophistication requirements of Rule 5605(c)(2) of the Nasdaq listing rules. In making this determination, our board of directors has considered 
prior experience, business acumen and independence. Both our independent registered public accounting firm and management periodically meet privately 
with our audit committee.
Report of the Audit Committee of the Board of Directors*
The audit committee has reviewed and discussed the audited financial statements for the fiscal year ended December 31, 2022 with management of the 
Company. The audit committee has discussed with the independent registered public accounting firm the matters required to be discussed by the applicable 
requirements of the Public Company Accounting Oversight board (“PCAOB”) and the Securities and Exchange Commission. The audit committee has also 
received the written disclosures and the letter from the independent registered public accounting firm required by applicable requirements of the PCAOB 
regarding the independent accountants’ communications with the audit committee concerning independence and has discussed with the independent 
registered public accounting firm the accounting firm’s independence. Based on the foregoing, the audit committee has recommended to the board of 
directors that the audited financial statements be included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.
M. Faye Wilson (Chair)
Bruce E. Gerhardt
Quyen Dao-Haddock
* The material in this report is not “soliciting material,” is not deemed “filed” with the Securities and Exchange Commission and is not to be incorporated 
by reference in any filing of the Company under the Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, whether made before or
after the date hereof and irrespective of any general incorporation language in any such filing.
Compensation Committee
During 2022, our compensation committee met three times. Our compensation committee is currently composed of four directors: Mr. Gerhardt (who 
chairs the compensation committee), Ms. Wilson, Dr. Chandler, and Ms. Rubinstein. Each of the members of the compensation committee has been 
determined to be an independent director under the applicable Nasdaq Listing Rules.
Our compensation committee’s responsibilities include:
•
oversee our overall compensation programs applicable to executive officers and directors;
•
oversee our cash and equity-based compensation plans applicable to all of our directors, officers and employees;
•
produce an annual report on executive compensation for inclusion in our annual proxy statement; and
•
review and discuss with our management the tables and narrative discussion regarding executive officer and director compensation to be 
included in our annual proxy statement.
Compensation Committee Processes and Procedures
Typically, the compensation committee meets at least twice annually and with greater frequency if necessary. The agenda for each meeting is usually 
developed by the Chair of the compensation committee, in consultation with the Chief Executive Officer. The compensation committee meets regularly in 
executive session. However, from time to time, various members of management and other employees as well as outside advisors or consultants may be 
invited by the compensation committee to 
114

 
make presentations, to provide financial or other background information or advice or to otherwise participate in compensation committee meetings. The 
Chief Executive Officer may not participate in, or be present during, any deliberations or determinations of the compensation committee regarding his 
compensation. The charter of the compensation committee grants the compensation committee full access to all books, records, facilities and personnel of 
the Company, as well as authority to obtain, at the expense of the Company, advice and assistance from internal and external legal, accounting or other 
advisors and consultants and other external resources that the compensation committee considers necessary or appropriate in the performance of its duties. 
In particular, the compensation committee has the sole authority to retain compensation consultants to assist in its evaluation of executive and director 
compensation, including the authority to approve the consultant’s reasonable fees and other retention terms.
During the fiscal year 2022, the compensation committee engaged Aon/Radford as a compensation consultant. After taking into consideration the six 
factors prescribed by the SEC and Nasdaq, the compensation committee concluded that there were no conflicts of interest between Aon/Radford and the
Company. The compensation committee requested that Aon/Radford review industry-wide compensation practices and trends to assess the competitiveness 
of our executive and non-employee director compensation programs.
The compensation committee asked Aon/Radford to develop a comparative group of companies and to perform analyses of competitive performance and 
compensation levels for that group. Aon/Radford also met with certain members of management and human resources to learn more about the Company’s 
business operations and strategy, key performance metrics and strategic goals, as well as the labor markets in which the Company competes. Aon/Radford 
ultimately developed recommendations primarily pertaining to compensation strategy for the Company’s executive officers and non-employee directors 
that were presented to the compensation committee for its consideration and to the board of directors for its information. Following an active dialogue with 
Aon/Radford, the compensation committee recommended that the board of directors approve certain recommendations of Aon/Radford.
Historically, the compensation committee has made most of the significant adjustments to annual compensation, determined bonus and equity awards and 
established new performance objectives at one or more meetings held during the last quarter of the year. However, the compensation committee also 
considers matters related to individual compensation, such as compensation for new executive hires, as well as high-level strategic issues, such as the 
efficacy of the Company’s compensation strategy, potential modifications to that strategy and new trends, plans or approaches to compensation, at various 
meetings throughout the year. Generally, the compensation committee’s process comprises two related elements: the determination of compensation levels 
and the establishment of performance objectives for the current year.
For executives other than the Chief Executive Officer, the compensation committee solicits and considers evaluations and recommendations submitted to 
the committee by the Chief Executive Officer. In the case of the Chief Executive Officer, the evaluation of his performance is conducted by the 
compensation committee, which makes recommendations to the full board of directors regarding any adjustments to his compensation as well as awards to 
be granted. In making such recommendations for determining the long-term incentive component of the Chief Executive Officer’s compensation, the 
compensation committee shall take into consideration the Company’s performance and relative stockholder return, the value of similar incentive awards 
given to chief executive officers of comparable companies, the awards given to the Company’s Chief Executive Officer in past years, other elements of the 
Chief Executive Officer’s compensation including total compensation and such other criteria as the committee deems advisable.
For all executives and directors as part of its deliberations, the compensation committee may review and consider, as appropriate, materials such as 
financial reports and projections, operational data, tax and accounting information, tally sheets that set forth the total compensation that may become 
payable to executives in various hypothetical scenarios, executive and director stock ownership information, company stock performance data, analyses of 
historical executive compensation levels and current Company-wide compensation levels.
Nominating and Corporate Governance Committee
During 2022, our nominating and corporate governance committee met six times. Our nominating and corporate governance committee is currently 
composed of three directors: Dr. Chandler (who chairs the nominating and corporate governance committee), Ms. Wilson, and Dr. Royston. Each of the 
members of the nominating and corporate governance committee has been determined to be an independent director under the applicable Nasdaq Listing 
Rules.
115

 
Our nominating and corporate governance committee’s responsibilities include:
•
identify individuals qualified to become board members, consistent with criteria approved by the board, and recommend that the board select 
the director nominees for election at each annual meeting of stockholders or to fill vacancies on board in accordance with our bylaws;
•
recommend to the board director nominees for each committee of the board; and
•
recommend to the board any appropriate changes in our Code of Ethics, applicable to the Chief Executive Officer and other senior financial 
officers, and in the Code of Business Conduct, applicable to all of our directors, officers, and employees, and in such other corporate 
governance policies and documents as the committee determines from time to time, including such policies and documents as the committee 
may develop and/or recommend to the board for approval; and
•
lead the board in its annual review of the performance of the board and any committee thereof, as applicable.
Director Nomination Process
The goal of our nominating and corporate governance committee, which we refer to as the committee for purposes of this section, is to assemble a well-
rounded board of directors that consists of directors with backgrounds that are complementary to one another, reflecting a variety of experiences, skills, and 
expertise. The committee’s current selection criteria for prospective nominees, as set forth in the committee’s charter, are as follows:
•
each director should be committed to enhancing long-term stockholder value and must possess a high level of personal and professional 
ethics, sound business judgment and integrity;
•
each director should be free of any conflicts of interest which would violate applicable laws, rules, regulations or listing standards, or 
interfere with the proper performance of his or her responsibilities;
•
each director should possess experience, skills and attributes which enhance his or her ability to perform duties on our behalf. In assessing 
these qualities, the committee will consider such factors as (i) personal skills and attributes, (ii) expertise in the areas of accounting, 
marketing, strategy, financial reporting, or corporate governance, or (iii) professional experience in the healthcare industry, as well as other 
factors that would be expected to contribute to an effective board of directors;
•
each director should have the willingness and ability to devote the necessary time and effort to perform the duties and responsibilities of 
board membership; and
•
each director should demonstrate his or her understanding that his or her primary responsibility is to our stockholders, and that his or her 
primary goal is to serve the best interests of those stockholders, and not his or her personal interest or the interest of a particular group.
In considering whether to recommend any candidate for inclusion in the slate of recommended nominees for our board of directors, including candidates 
recommended by stockholders, the committee applies the criteria set forth above.
In our continuing commitment to the crucial value of diverse experiences and perspectives, we seek a broad inclusive pool of board candidates.
The committee believes it is appropriate for our Interim President and Chief Executive Officer to serve as a member of our board of directors.
The committee currently has a policy of evaluating nominees recommended by stockholders in the same manner as it evaluates other nominees. We do not 
intend to treat stockholder recommendations in any manner different from other recommendations. Under our amended and restated bylaws, stockholders 
wishing to propose a director nominee should send the required information to our corporate secretary at Biocept, Inc., 9955 Mesa Rim Road, San Diego, 
California 92121. We have not received director candidate recommendations from our stockholders.
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Science, Technology, and Clinical Affairs Committee
During 2022, our science, technology, and clinical affairs committee met one time. Our science, technology, and clinical affairs committee is currently 
composed of three directors: Dr. Royston (who chairs the science, technology, and clinical affairs committee), Dr. Chandler, and Linda Rubinstein.
Our science, technology, and clinical affairs committee’s responsibilities include:
•
review and advise the board on the overall strategy, direction and effectiveness of our research and development and our clinical programs;
•
evaluate and advise the board on our progress in achieving our long-term strategic research, development and clinical goals and objectives;
•
identify and monitor emerging science, technology and regulatory developments, issues and trends which are relevant to our research and 
development strategy and clinical activities;
•
assess and advise the board, as requested, on the committee’s view of the quality and competitiveness, from a scientific perspective of our 
research and development programs and clinical initiatives;
•
review and evaluate the infrastructure and resources made available by us for our research and development projects and clinical programs at 
the request of the board. Upon review, the committee will make recommendations regarding such infrastructure and resources necessary to 
achieve our objectives;
•
review and advise the board regarding the scientific, research and development, and intellectual property aspects of proposed transactions 
such as investments, acquisitions and intellectual property at the request of the board;
•
meet with and liaise with, as well as review the recommendations from, our Scientific Advisory Board and Clinical Advisory Board; and
•
conduct quarterly meetings with our Medical Staff and Chief Executive Officer to assess and advise on clinical and scientific progress and 
initiatives.
Hedging Policy
The Company’s insider trading and window period policy provides that no officer, director, other employee or consultant of the Company may engage in 
short sales, transactions in put or call options, hedging transactions or other inherently speculative transactions with respect to the Company’s stock at any 
time. In addition, no officer, director, other employee or consultant of the Company may margin, or make any offer to margin, any of the Company’s stock, 
including without limitation, borrowing against such stock, at any time.
Stockholder Communications with our Board of Directors
Stockholders seeking to communicate with our board of directors, as a whole, may send such communication to: Biocept, Inc., 9955 Mesa Rim Road, San 
Diego, California 92121, Attention: Chief Legal Officer and Chief Compliance Officer. Stockholders seeking to communicate with an individual director, 
in his or her capacity as a member of our board of directors, may send such communication to the same address to the attention of such individual director. 
We will promptly forward any such stockholder communication to each director to whom such stockholder communication is addressed to the address 
specified by each such director.
 
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Item 11. Executive Compensation. 
EXECUTIVE COMPENSATION
Summary Compensation Table
The following table shows the compensation awarded to or earned in our last two fiscal years by our principal executive officer and our two most highly 
compensated executive officers other than our principal executive officer who were serving as executive officers as of December 31, 2022. The persons 
listed in the following table are referred to herein as the “named executive officers.”
 
 Name and Principal Position
 
Year
 
Salary($)(1)
 
 
Bonus($)
 
 
Option
Awards($)(2)
   
All Other
Compensation
($)
 
 
Total ($)
 
Sam Riccitelli(3)
 
2022
   
507,494  
   
30,000  
(4)  
570,340      
18,463  
(5)  
1,126,297  
Interim President and Chief Executive Officer
 
 
 
     
     
     
     
   
Michael W. Nall(6)
 
2022
   
64,875  
   
—    
 
—      
535,806  
(7)  
600,681  
Former President and Chief Executive Officer
 
2021
   
513,000      
15,000    
 
645,517      
11,974    
 
1,185,491  
Antonino Morales(8)
 
2022
   
366,073      
—    
 
342,204      
21,006  
(9)  
729,283  
Interim Chief Financial Officer
 
 
 
     
     
     
     
   
Darrell Taylor(10)
 
2022
   
424,867  
   
—    
 
341,006      
7,405    
 
773,278  
Chief Legal Officer and Chief Compliance Officer, Corporate Secretary
 
 
 
     
     
     
     
   
 
(1)
The “Salary ($)” column includes salary earned for each named executive officer and the net increase/(decrease) in each named executive officer’s 
accrued vacation balance, or accrued vacation, in each of the years ended December 31, 2022.
(2)
The amounts in the “Option Awards ($)” column reflect the grant date fair values of stock options granted during the year. These amounts are 
determined in accordance with the provisions of FASB ASC Topic 718, rather than an amount paid to or realized by the executive officer. For a 
description of these stock options see “Narrative Disclosure to Summary Compensation Table” within this “Executive Compensation” section.
(3)
Mr. Riccitelli was appointed as our Interim President and Chief Executive Officer, effective February 15, 2022.
(4)
Represents a sign-on bonus paid to the named executive officer.
(5)
Represents (i) $11,158 in Chair and board of directors fees earned prior to Mr. Riccitelli’s appointment as Interim President and Chief Executive 
Officer, effective February 15, 2022 and (ii) $7,305 in employer paid life insurance premiums.
(6)
Mr. Nall resigned from the Company effective February 15, 2022.
(7)
Represents severance and PTO pay out as part of Mr. Nall's separation agreement.
(8)
Mr. Morales was appointed as our Interim Chief Financial Officer, effective February 15, 2022.
(9)
Represents (i) $5,889 in board of directors and audit committee fees earned prior to Mr. Morales’s appointment as Interim Financial Officer, 
effective February 15, 2022 and (ii) $9,672 in employer paid life insurance premiums.
(10)
Mr. Taylor joined us in December 2021. He was not a named executive officer in 2021.The amount in “All Other Compensation” represents $3,251 
in employer paid life insurance premiums.
Narrative Disclosure to Summary Compensation Table
Employment Agreements
We have entered into employment with each of our named executive officers. The employment agreements set forth the executive officer’s initial base 
salary, annual bonus opportunity and eligibility to participate in our employee benefit plans. Each of our named executive officers is employed “at will.” 
For a discussion of the severance pay and other benefits to be provided in connection with a termination of employment and/or a change in control under 
the arrangements with our named executive officers, see the subsection titled “—Potential Payments upon Termination or Change in Control” below.
Michael W. Nall
We entered into an employment agreement effective as of August 26, 2013, which was subsequently amended on November 6, 2015 and November 1, 
2017, with Michael W. Nall, or collectively, the CEO Employment Agreement, in connection with his appointment as our Chief Executive Officer and 
President. Pursuant to the CEO Employment Agreement, Mr. Nall was initially entitled to receive an annual base salary of $200,000, which was 
subsequently increased to $350,000 upon the completion of the IPO, and thereafter periodically increased in the discretion of our board of directors or the 
compensation committee of our board of directors, and was initially eligible to earn an annual performance bonus of $100,000 in the sole 
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discretion of our board of directors. In 2021, Mr. Nall’s base salary was increased to $519,000 and was eligible to receive his annual performance bonus as 
a participant in our Annual Incentive Plan, as described further below.
Mr. Nall resigned from his position as the President and Chief Executive Officer of the Company effective on February 15, 2022. Pursuant to the 
Separation Agreement that we entered into with Mr. Nall, we agreed to provide Mr. Nall with the severance benefits he would have been entitled to receive 
under the CEO Employment Agreement in the event of a termination without cause, as discussed further below.
Sam Riccitelli
In connection with his appointment as our Interim President and Chief Executive Officer in February 2022, we entered into an employment agreement with 
Mr. Riccitelli. The employment agreement provides that Mr. Riccitelli will receive an annual base salary of $570,000 and will be eligible to receive an 
annual performance bonus with a target bonus percentage equal to 50% of his base salary. Pursuant to the employment agreement, we paid Mr. Riccitelli a 
sign-on bonus of $30,000 and granted him an option to purchase 250,000 shares of our common stock. In addition, Mr. Riccitelli is entitled to severance 
benefits upon a termination without cause or resignation for good reason (“Involuntary Termination”), including continued payment of base salary for six 
months and payment of his group health insurance premiums for up to six months. In addition, if Mr. Riccitelli’s employment is subject to an Involuntary 
Termination within one month prior to or 12 months following a change in control, then he will be entitled to receive continued payment of base salary for 
12 months, payment of his group health insurance premiums for up to 12 months, a pro-rated annual performance bonus and full accelerated vesting of any 
unvested equity awards. Mr. Riccitelli may also be entitled to receive tax gross up payments in the event any payments made in connection with a change 
in control are subject to the excise taxes imposed by Sections 280G and 4999 of the Internal Revenue Code.
Antonino Morales
In connection with his appointment as our Interim Chief Financial Officer, we entered into an employment agreement with Mr. Morales. The employment 
agreement provides that Mr. Morales will receive an annual base salary of $400,000 and will be eligible to receive an annual performance bonus with a 
target bonus percentage equal to 40% of his base salary. Pursuant to the employment agreement, we granted Mr. Morales an option to purchase 150,000 
shares of our common stock. Mr. Morales is entitled to severance benefits upon an Involuntary Termination, including continued payment of base salary for 
six months and payment of his group health insurance premiums for up to six months. In addition, if Mr. Morales’s employment is subject to an Involuntary 
Termination within one month prior to or 12 months following a change in control, then he will be entitled to receive continued payment of base salary for 
12 months, payment of his group health insurance premiums for up to 12 months, a pro-rated annual performance bonus and full accelerated vesting of any 
unvested equity awards. Mr. Morales may also be entitled to receive tax gross up payments in the event any payments made in connection with a change in 
control are subject to the excise taxes imposed by Sections 280G and 4999 of the Internal Revenue Code.
 
Darrell Taylor
We entered into an employment agreement with Mr. Taylor in December 2021, which was subsequently amended in February 2022. Mr. Taylor was 
initially entitled to receive an annual base salary of $340,000 and was eligible to receive an annual performance bonus with a target bonus percentage equal 
to 35% of his base salary. In connection with his promotion to Chief Legal Officer in February 2022, his annual bases salary was increased to $400,000 and 
his target bonus percentage was increased to 40%. Pursuant to his employment agreement, we granted Mr. Taylor an option to purchase 150,000 shares of 
our common stock. Mr. Taylor is entitled to severance benefits upon an Involuntary Termination, including continued payment of base salary for six 
months and payment of his group health insurance premiums for up to six months. In addition, if Mr. Taylor’s employment is subject to an Involuntary 
Termination within one month prior to or 12 months following a change in control, then he will be entitled to receive continued payment of base salary for 
12 months, payment of his group health insurance premiums for up to 12 months, a pro-rated annual performance bonus and full accelerated vesting of any 
unvested equity awards. Mr. Taylor may also be entitled to receive tax gross up payments in the event any payments made in connection with a change in 
control are subject to the excise taxes imposed by Sections 280G and 4999 of the Internal Revenue Code.
Annual Incentive Plan
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On May 19, 2014, the compensation committee of our board of directors approved an annual incentive plan, or the Annual Incentive Plan, to provide our 
employees, including our executive officers, with an incentive for such employees to perform to the best of their abilities, to further our growth, 
development and financial success, and to enable us to attract and retain highly qualified employees. Each named executive officer is eligible for an award 
based upon the achievement of certain pre-established corporate performance goals and objectives approved by the compensation committee and, with 
respect to our named executive officers other than our chief executive officer, pre-established individual performance goals and objectives approved by the 
compensation committee.
Pursuant to the terms of our Annual Incentive Plan and their respective employment agreements, for 2022, Mr. Riccitelli was eligible to receive an annual 
bonus in an amount up to 50% of his annual base salary, based solely on the achievement of pre-determined corporate goals and objectives, and each of 
Messrs. Morales and Taylor were eligible to receive an annual bonus in an amount up to 40% of their respective annual base salary, based 80% on the 
achievement of pre-determined corporate goals and objectives, and 20% on the achievement of predetermined individual goals and objectives.
In January 2023, our board of directors determined that the pre-established goals for fiscal year ended December 31, 2022 were not achieved at a level 
sufficient to warrant payout under the Annual Incentive Plan, and no bonuses were to be paid for 2022.
Equity-Based Incentive Awards
Our equity-based incentive awards are designed to align the interests our stockholders with those of our employees, non-employee directors and 
consultants, including our named executive officers. Our board of directors or an authorized committee thereof is responsible for approving equity grants.
We have historically used stock options and restricted stock unit awards as an incentive for long-term compensation to our named executive officers 
because stock options allow our named executive officers to realize value from this form of equity compensation only if our stock price increases to align 
the interests of our named executive officers with the interests of our stockholders generally.
All stock options are granted with an exercise price per share that is no less than the fair market value of our common stock on the date of grant of such 
award. Our stock option awards to our named executive officers may be subject to acceleration of vesting and exercisability under certain termination and 
change in control events.
OUTSTANDING EQUITY AWARDS AT FISCAL YEAR END
The following table sets forth certain information, on an award-by-award basis, concerning unexercised options to purchase common stock that have not 
yet vested for each named executive officer, which were outstanding as of December 31, 2022.
 
 
 
 
 
Option Awards(1)
Name
 
Grant Date
 
Number of
Securities
Underlying
Unexercised
Options (#)
Exercisable
   
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable
   
Option
Exercise
Price ($)
   
Option
Expiration
Date
Samuel D. Riccitelli
 
10/20/2020    
6,667     
3,333     
4.63   
10/20/2030
 
 
7/16/2021
   
10,000     
—     
3.77   
7/16/2031
 
 
2/28/2022
   
52,083     
197,917     
2.39   
2/28/2032
Antonino Morales
 
7/16/2021
   
3,333     
6,667     
3.77   
7/16/2031
 
 
2/28/2022
   
31,250     
118,750     
2.39   
2/28/2032
Darrell Taylor
 
2/28/2022
   
37,501     
112,499     
2.39   
2/28/2032
 
(1)
All option awards were granted under our 2013 Plan.
(2)
The scheduled vesting dates, after December 31, 2022, of these options were as follows:
Mr. Riccitelli: For the option awards granted on July 16, 2021 in the table above, all options awarded are vested and exercisable. For the first option 
award granted on October 20, 2020, 1/3 of 10,000 shares vest on each of October 20, 
120
(2)
(3)

 
2021, October 20, 2022, and October 20, 2023. For the second option award granted on February 28, 2022, 250,000 option shares vests on a 
monthly basis over four years from the grant date. 
Mr. Morales: For the first option award granted on July 16, 2021, 1/3 of 10,000 shares vest on each of July 16, 2022, July 16, 2023, and July 16, 
2024.  For the second option award granted on February 28, 2022, 150,000 option shares vests on a monthly basis over four years from the grant 
date. 
Mr. Taylor: For the first option award granted on February 28, 2022, 150,000 option shares vests on a monthly basis over four years from the grant 
date. 
(3)
All option awards were granted with a per share exercise price equal to the fair market value of one share of our common stock on the date of grant, 
as determined in good faith by our board of directors or compensation committee thereof.
Options held by certain of our named executive officers may be eligible for accelerated vesting under specified circumstances. Please see the section below 
titled “—Potential Payments upon Termination or Change-In-Control” for a description of such potential acceleration.
Potential Payments upon Termination or Change-In-Control
Mr. Riccitelli's employment agreement provided that in the event of termination of his employment by us without cause or his resignation for good reason 
(each, as defined in the Interim CEO Employment Agreement), the vesting of any of his outstanding unvested stock options which would have vested over 
the following 12 months will accelerate (unless the applicable stock option or agreement provides for more favorable acceleration terms). The Interim CEO 
Employment Agreement further provided that if he has a separation from service as a result of his termination without cause or his resignation with good 
reason then, provided that he gives us an effective waiver and release of claims, he will be entitled to 6 months’ salary and up to 6 months of COBRA 
premiums (or substantially equivalent health insurance coverage). Mr. Riccitelli's Interim CEO Employment Agreement also provided that in the event of a 
change of control (as defined in the Interim CEO Employment Agreement), if the surviving corporation did not assume, continue, or substitute Mr. 
Riccitelli's then outstanding stock awards, then all unvested awards would accelerate and vest in full immediately prior to the change of control, subject to 
Mr. Riccitelli’s continuous service immediately prior to such change in control. In addition, if during the 1 month period before a change of control or 
during the 12-month period following a change of control, Mr. Riccitelli's employment was terminated without cause or Mr. Riccitelli resigned for good 
reason, then the vesting of each of Mr. Riccitelli's outstanding unvested stock awards will accelerate immediately, and he will be entitled to 12 months’ 
salary and up to 12 months of COBRA premiums (or substantially equivalent health insurance coverage).
Mr. Morales’s employment agreement provided that in the event of termination of his employment by us without cause or his resignation for good reason 
(each, as defined in the Interim CFO Employment Agreement), the vesting of any of his outstanding unvested stock options and which would have vested 
over the following 12 months will accelerate (unless the applicable stock option agreement provides for more favorable acceleration terms). The Interim 
CFO Employment Agreement further provided that if he has a separation from service as a result of his termination without cause or his resignation with 
good reason then, provided that he gives us an effective waiver and release of claims, he will be entitled to 6 months’ salary and up to 6 months of COBRA 
premiums (or substantially equivalent health insurance coverage). Mr. Morales’s Interim CFO Employment Agreement also provided that in the event of a 
change of control (as defined in the Interim CFO Employment Agreement), if the surviving corporation did not assume, continue, or substitute Mr. 
Morales’s then outstanding stock awards, then all unvested awards would accelerate and vest in full immediately prior to the change of control, subject to 
Mr. Morales’s continuous service immediately prior to such change in control. In addition, if during the 1-month period before a change of control or 
during the 12-month period following a change of control, Mr. Morales’s employment was terminated without cause or Mr. Morales resigned for good 
reason, then the vesting of each of Mr. Morales’s outstanding unvested stock awards will accelerate immediately, and he will be entitled to 12 months’ 
salary and up to 12 months of COBRA premiums (or substantially equivalent health insurance coverage).
Mr. Taylor’s employment agreement provided that in the event of termination of his employment by us without cause or his resignation for good reason 
(each, as defined in the CLO Employment Agreement), the vesting of any of his outstanding unvested stock options which would have vested over the 
following 12 months will accelerate (unless the applicable stock option agreement provides for more favorable acceleration terms). The CLO Employment 
Agreement further provided that if he has a separation from service as a result of his termination without cause or his resignation with good reason then, 
provided that he gives us an effective waiver and release of claims, he will be entitled to 6 months’ salary and up to 6 months of COBRA 
121

 
premiums (or substantially equivalent health insurance coverage). Mr. Taylor’s CLO Employment Agreement also provided that in the event of a change of 
control (as defined in the CLO Employment Agreement), if the surviving corporation did not assume, continue, or substitute Mr. Taylor’s then outstanding 
stock awards, then all unvested awards would accelerate and vest in full immediately prior to the change of control, subject to Mr. Taylor’s continuous 
service immediately prior to such change in control. In addition, if during the 1-month period before a change of control or during the 12-month period 
following a change of control, Mr. Taylor’s employment was terminated without cause or Mr. Taylor resigned for good reason, then the vesting of each of 
Mr. Taylor’s outstanding unvested stock awards will accelerate immediately, and he will be entitled to 12 months’ salary and up to 12 months of COBRA 
premiums (or substantially equivalent health insurance coverage).
In addition, we only have the discretion to accelerate the vesting of awards under the 2013 Plan in connection with a change of control if an outstanding 
award is not assumed, continued or substituted for by the surviving or acquiring corporation (or its parent company).
Separation Agreement with Mr. Nall
In connection with his resignation in February 2022, we entered into a separation agreement with Mr. Nall, pursuant to which Mr. Nall agreed to provide us 
with a full release of claims and we agreed to provide Mr. Nall with the severance benefits he would have been entitled to receive under his employment 
agreement in the event of a termination without cause.
Equity Compensation Plan Information
The following table sets forth certain information as of December 31, 2022 regarding the shares of our common stock available for grant or granted under 
stock option plans and other compensation arrangements that were (i) adopted by our security holders and (ii) were not approved by our security holders:
 
Plan Category
 
Number of securities to 
be issued upon exercise 
of outstanding options, 
warrants and rights
   
Weighted-average 
exercise price of 
outstanding options, 
warrants and rights ($)    
Number of securities 
remaining available for 
future issuance under 
equity compensation 
plans (excluding securities 
reflected in 1st column)
 
Equity compensation plans approved by security holders
   
1,011,037    $
2.23     
1,325,372 
Equity compensation plans not approved by security holders
   
1,252,364    $
1.63     
997,636 
 
(1)
Represents 1,011,037 shares of common stock that may be issued pursuant to outstanding non-inducement option awards granted and 36 shares of 
common stock that may be issued pursuant to outstanding non-inducement restricted stock unit awards granted, and 1,325,372 shares of common 
stock available for future grant as non-inducement awards, under the 2007 Plan and 2013 Plan. See “Executive Compensation—Equity 
Compensation Plan Information—2007 Equity Incentive Plan” and “Executive Compensation—Equity Compensation Plan Information—Amended 
and Restated 2013 Plan” below for a description of these plans.
(2)
Represents 1,252,364 shares of common stock that may be issued pursuant to such outstanding inducement option awards granted and 997,636 
shares of common stock available for future grant as inducement awards under the 2013 Plan.
Equity Compensation Plan Information
We have two equity incentive plans: the 2007 Plan and the 2013 Plan. We no longer grant awards under the 2007 Plan, but awards granted under the 2007 
Plan remain subject to its terms. A brief summary of each of the 2007 Plan and 2013 Plan is below.
2007 Equity Incentive Plan
The 2007 Plan authorized the grant of the following types of awards: (i) nonstatutory stock options, or NSOs; (ii) incentive stock options, or ISOs; (iii) 
restricted stock awards; (iv) RSUs; (v) stock appreciation rights, or SARs; (vi) performance stock awards; and (vii) other stock awards. Awards may be 
granted to employees, directors, consultants and other service providers of our company and its affiliates. However, ISOs may not be granted to non-
employees.
122
(1)
(2)

 
Corporate Transaction. In the event we are acquired in a corporate transaction, as defined in the 2007 Plan, unless otherwise provided in a written 
agreement between us and the holder of an outstanding 2007 Plan award, awards will be assumed by the successor company or a similar award will be 
substituted by the successor company. If the successor company does not agree to assume or substitute an award, if the award is held by a current 
participant (as defined in the 2007 Plan), the vesting of the award will accelerate, and the award will become exercisable in full, if the award is held by 
someone other than a current participant, the award will terminate if not exercised prior to the effective time of the corporate transaction.
Change in Control. In the event of a change in control, award may be subject to acceleration of vesting and exercisability, as provided for in the award 
agreement or in any other written agreement between the Company and the participant, but in the absence of such provision, no such acceleration shall 
occur.
Amended and Restated 2013 Plan
The 2013 Plan authorized the grant of the following types of awards: (i) nonstatutory stock options, or NSOs; (ii) incentive stock options, or ISOs; (iii) 
restricted stock awards; (iv) RSUs; (v) stock appreciation rights, or SARs; (vi) performance stock awards; and (vii) other stock awards. Awards may be 
granted to employees, directors, consultants and other service providers of our company and its affiliates. However, ISOs may not be granted to non-
employees.  In addition, the 2013 Plan has a separate share reserve that may be used exclusively for the grant of inducement awards to employees who have 
not previously been an employee or a director of us or an affiliate, or following a bona fide period of non-employment, as an inducement material to the 
individuals’ entering into employment with us within the meaning of the Nasdaq Listing Rules. All such inducement awards must be granted by a 
committee consisting of the majority of our independent directors or our independent compensation committee, in either case in accordance with Nasdaq 
Listing Rules.
Change in Control. 
In the event of a change in control of us, as defined in the Amended 2013 Plan, in which the surviving corporation or acquiring corporation (or its parent 
company) does not assume or continue outstanding awards under the Amended 2013 Plan or substitute similar stock awards for such outstanding awards, 
then the plan administrator may, in its discretion and upon at least 10 days’ advance notice to the affected persons, accelerate the vesting (and exercisability, 
as applicable) of outstanding awards under the 2013 Plan in full or in part to a date prior to the effective time of the change in control transaction and, to the 
extent not exercised (if applicable) at or prior to the effective time of the transaction, cancel all outstanding awards upon or immediately before the change 
in control and pay to the holders thereof, in cash or stock, or any combination thereof, the value of such awards (including, at the plan administrator’s 
discretion, any unvested portion of the award) based upon the value per share of common stock received or to be received or deemed received by our other 
stockholders in the transaction. In the case of any stock option or SAR with an exercise price that equals or exceeds the price paid for a share of common 
stock in connection with the change in control, the plan administrator may cancel the option or SAR without the payment of consideration therefor.
In addition, in the event of a participant’s termination of continuous service without cause or resignation for good reason, as each such term is defined in 
the 2013 Plan,  during the 10 day period before a change in control or during the 12 month period following a change in control, all stock options and SARs 
under the 2013 Plan will become immediately exercisable with respect to 100% of the shares subject to such stock options or SARs, and/or the restricted 
period will expire immediately with respect to 100% of the shares of restricted stock or RSUs as of the date of the participant’s termination or resignation.
With respect to performance compensation awards, in the event of a change in control, all incomplete performance periods in respect of such award in 
effect on the date the change in control occurs will end on the date of such change in control and the plan administrator will (i) determine the extent to 
which performance goals with respect to each such performance period have been met based upon such audited or unaudited financial information then 
available as it deems relevant and (ii) cause to be paid to the applicable participant partial or full awards with respect to performance goals for each such 
performance period based upon the plan administrator’s determination of the degree of attainment of performance goals or, if not determinable, assuming 
that the applicable “target” levels of performance have been attained, or on such other basis determined by the plan administrator.
DIRECTOR COMPENSATION
123

 
In February 2022, upon recommendation from our compensation committee, our board of directors approved amendments to our non-employee director 
compensation policy. As amended, our non-employee director compensation policy includes the following cash and equity compensation:
•
Annual Retainer.
For service as a director: an annual cash retainer of $40,000 (in addition to any annual cash retainers otherwise paid).
•
Board Chair.
For service as Board Chair: an annual cash retainer of $50,000 (in addition to any annual cash retainers otherwise paid).
•
Lead Independent Director.
For service as Lead Independent Director: an annual cash retainer of $50,000 (in addition to any annual cash retainers otherwise paid).
•
Audit Committee.
For service as Chair of the audit committee: an annual cash retainer of $15,000 (in addition to any annual cash retainers otherwise paid).
For service as member of the audit committee other than as its Chair: an annual cash retainer of $7,500 (in addition to any annual cash retainers otherwise 
paid).
•
Compensation Committee.
For service as Chair of the compensation committee: an annual cash retainer of $10,000 (in addition to any annual cash retainers otherwise paid).
For service as member of the compensation committee other than as its Chair: an annual cash retainer of $5,000 (in addition to any annual cash retainers 
otherwise paid).
•
Nominating and Corporate Governance Committee.
For service as Chair of the nominating and corporate governance committee: an annual cash retainer of $10,000 (in addition to any annual cash retainers 
otherwise paid).
For service as member of the nominating and corporate governance committee other than as its Chair: an annual cash retainer of $5,000 (in addition to any 
annual cash retainers otherwise paid).
•
Science, Technology, and Clinical Affairs Committee.
For service as Chair of the science, technology, and clinical affairs committee: an annual cash retainer of $10,000 (in addition to any annual cash retainers 
otherwise paid).
For service as member of the science, technology, and clinical affairs committee other than as its Chair: an annual cash retainer of $5,000 (in addition to 
any annual cash retainers otherwise paid).
•
Initial Awards.
For each non-employee director who is initially elected or appointed to the board: an option to purchase 10,000 shares of common stock.
•
Annual Awards.
For each non-employee director who (i) has been serving on the board for at least six months as of the date of any annual meeting of our stockholders and 
(ii) will continue to serve as a non-employee director immediately following such meeting: an option to purchase 10,000 shares of common stock.
124

 
The annual cash retainers shall be earned and paid on a calendar quarterly basis, subject to proration in the case of service during only a portion of a 
calendar quarter.
The per share exercise price of each option granted to our non-employee directors shall equal the fair market value of a share of common stock on the date 
the option is granted. Each such initial award shall vest and become exercisable in substantially equal installments on each of the first three anniversaries of 
the vesting commencement date, subject to continuing in service on the board through each such vesting date; provided, that all stock options under the 
non-employee director compensation policy shall vest in full upon the occurrence of a change in control. Each such annual award shall fully vest and 
become exercisable on the first anniversary of the vesting commencement date, subject to continuing in service on the board through each such vesting 
date; provided, that all stock options under the non-employee director compensation policy shall vest in full upon the occurrence of a change in control. 
The term of each such stock option shall be ten years from the date the option is granted. Upon a non-employee director’s cessation of service on the board 
for any reason, his or her stock options granted under the non-employee director compensation policy would, to the extent vested on the date of cessation of 
service, remain exercisable for 12 months following the cessation of his or her service on the board (or such longer period as the board may determine in its 
discretion on or after the date of such stock options).
On July 8, 2022, option awards exercisable for 10,000 shares of common stock each with a vesting commencement date of July 8, 2022 were granted under 
the 2013 Plan to each of the then five non-employee members of our board of directors related to the grant of annual awards for the 2022 annual meeting of 
our shareholders, in accordance with our non-employee director compensation policy in effect at the date of grant. These awards have a term of 10 years 
from the date of grant and an exercise price of $1.03 per share, which is equal to the closing price of our common stock on the date of grant. The grant date 
fair value of these awards of $1.03 per share was estimated using a Black-Scholes valuation model. The assumptions used in the Black-Scholes valuation 
model for these awards include a volatility rate of 179.87%, a risk-free interest rate of 0.51%, a dividend yield of 0.00%, and an expected term of 5.5 years.
On November 17, 2022, option awards exercisable for 10,000 shares of common stock with a vesting commencement date of November 17, 2022 was 
granted under the 2013 Plan to Quyen Dao-Haddock in connection with her appointment to our board of directors, in accordance with the initial awards 
amounts noted above in this “Director Compensation” section. These awards have a term of 10 years from the date of grant and an exercise price of $0.81 
per share, which is equal to the closing price of our common stock on the date of grant. The grant date fair value of these awards of $3.58 per share was 
estimated using a Black-Scholes valuation model. The assumptions used in the Black-Scholes valuation model include a volatility rate of 165.56%, a risk-
free rate of 3.93%, a dividend yield of 0.00%, and an expected term of 5.08 years.
The following table reflects all compensation awarded to, earned by or paid to the non-employee directors during the fiscal year ended December 31, 2022:
 
Name
 
Fees Earned
or Paid in
Cash ($)
   
Option
Awards
($)(1)
   
Total ($)
 
M. Faye Wilson, MBA
   
108,801     
10,210     
119,011 
Marsha A. Chandler, Ph.D.
   
60,000     
10,210     
70,210 
Bruce E. Gerhardt, CPA
   
57,500     
10,210     
67,710 
Ivor Royston, M.D.
   
55,000     
10,210     
65,210 
Linda Rubinstein
   
47,053     
10,210     
57,263 
David F. Hale
   
26,487     
10,210     
36,697 
Quyen Dao-Haddock, CPA
   
5,674     
7,646     
13,320 
Samuel D. Riccitelli
   
11,158     
—     
11,158 
Antonino Morales, CPA
   
5,889     
—     
5,889 
 
(1)
The amounts in the “Option Awards ($)” column reflect the grant date fair values of stock options granted during the year. These amounts are 
determined in accordance with the provisions of FASB ASC Topic 718, rather than an amount paid to or realized by the director.
(2)
Effective November 17, 2022, Quyen Dao-Haddock was appointed to our board of directors. Upon her appointment to our board of directors, Ms. 
Dao-Haddock received an option grant to purchase 10,000 shares of our common stock.
125
(2)

 
The following table sets forth the number of option awards outstanding for each non-employee director as of December 31, 2022:
 
Name
 
Option
Award (#)
 
M. Faye Wilson, MBA
   
23,282 
Marsha A. Chandler, Ph.D.
   
23,270 
Ivor Royston, M.D.
   
23,255 
Bruce E. Gerhardt, CPA
   
23,251 
Linda Rubinstein
   
20,000 
Quyen Dao-Haddock, CPA
   
10,000 
 
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. 
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
The following table sets forth the beneficial ownership of our common stock as of February 28, 2023 by:
•
each person, or group of affiliated persons, whom we know to beneficially own more than 5% of our common stock;
•
each of our named executive officers;
•
each of our directors; and
•
all of our current executive officers and directors as a group.
Applicable percentages are based on 17,728,195 shares outstanding on February 28, 2023, adjusted as required by rules promulgated by the SEC.
We have determined beneficial ownership in accordance with the rules of the SEC. These rules generally attribute beneficial ownership of securities to 
persons who possess sole or shared voting power or investment power with respect to those securities. In addition, the rules include shares of common 
stock issuable pursuant to the exercise of stock options or warrants that are either immediately exercisable or exercisable on or before April 29, 2023, 
which is 60 days after February 28, 2023. These shares are deemed to be outstanding and beneficially owned by the person holding those options or 
warrants for the purpose of computing the percentage ownership of that person, but they are not treated as outstanding for the purpose of computing the 
percentage ownership of any other person. Unless otherwise indicated, the persons or entities identified in this table have sole voting and investment power 
with respect to all shares shown as beneficially owned by them, subject to applicable community property laws.
126

 
Except as otherwise noted below, the address for persons listed in the table is c/o Biocept, Inc., 9955 Mesa Rim Road, San Diego, California 92121.
 
Name of Beneficial Owner
 
Number of Shares 
Beneficially Owned    
Percentage of Shares 
Beneficially Owned  
Named Executive Officers and Directors:
 
    
   
Marsha A. Chandler, Ph.D.(1)
   
13,229   
*  
Bruce E. Gerhardt, CPA(2)
   
13,712   
*  
Quyen Dao-Haddock, CPA(3)
   
1,389   
*  
Antonino Morales, CPA (4)
   
47,083   
*  
Darrell Taylor (5)
   
50,000   
*  
Michael W. Nall (6)
   
—   
*  
Samuel D. Riccitelli (7)
   
89,584   
*  
Ivor Royston, M.D. (8)
   
13,249   
*  
Linda Rubinstein (9)
   
3,333   
*  
M. Faye Wilson, MBA(10)
   
13,292   
*  
All Current Executive Officers and Directors as a group (11 persons) 
   
285,496     
1.61%
 
* Less than 1%.
(1)
Includes 13,207 shares of common stock underlying stock options. The number of shares beneficially owned also includes 17 shares held by Dr. 
Chandler and 5 outstanding shares held by a family trust affiliated with Dr. Chandler.
(2)
Includes 441 shares of common stock and 13,251 shares of common stock underlying stock options. The calculation of the percentage of shares 
beneficially owned also includes 83 shares for which common stock warrants held by Mr. Gerhardt are exercisable at per share prices of $150.00 
according to prices set in our January 2018 public offering.
(3)
Includes 1,389 shares of common stock underlying stock options.
(4)
Includes 47,083 shares of common stock underlying stock options.
(5)
Includes 50,000 shares of common stock underlying stock options.
(6)
Mr. Nall resigned from our company effective February 15, 2022. We are not aware of any shares beneficially owned by him based on our records.
(7)
Includes 89,584 shares of common stock underlying stock options.
(8)
Includes 13,255 shares of common stock underlying stock options. Includes 32 outstanding shares of common stock owned by Dr. Royston’s 
individual retirement account, 15 shares held in a family trust and 10 shares held in an individual trust account.
(9)
Includes 13,312 shares of common stock underlying stock options.
(10)
Includes 13,282 shares of common stock underlying stock options. Includes 71 outstanding shares of common stock held by Ms. Wilson and 2 
outstanding shares of common stock held by Ms. Wilson’s individual retirement account.
(11)
Consists of the shares described in notes (1) through (5) and (7) through (10) above, as well 40,625 shares of common stock underlying stock 
options beneficially owned by executive officers not named in the table above.
Item 13. Certain Relationships and Related Transactions, and Director Independence. 
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
Other than compensation arrangements for named executive officers and directors, we describe below each transaction and series of similar transactions, 
since January 1, 2021, to which we were a party or will be a party, in which the amounts exceeded $120,000 or will exceed $120,000 (or, if less, 1% of the 
average of our total assets amount at December 31, 2021 and 2022) and in which any of our directors, executive officers or holders of more than 5% of our 
capital stock, or any member of the immediate family of, or person sharing the household with, the foregoing persons, had or will have a direct or indirect 
material interest.
Lyle J. Arnold, Ph.D.
Lyle J. Arnold, Ph.D., our former Chief Scientist, Senior Vice-President, is the controlling person of Aegea Biotechnologies, Inc., or Aegea. On September 
2, 2012, the Company entered into an Assignment and Exclusive Cross-License Agreement, or 
127
(11)

 
the Cross-License Agreement, with Aegea. The Company received payments totaling approximately $0 and $49,000 during the years ended December 31, 
2022 and 2021, respectively, from Aegea as reimbursements for shared patent costs under the Cross-License Agreement. On December 11, 2019, the
Company entered into a First Amendment to Assignment and Exclusive Cross-License Agreement with Aegea pursuant to which the Company obtained a 
royalty bearing license for a certain patent. In February 2022, Dr. Arnold’s employment with the Company was terminated. On May 24, 2022, to limit costs 
and expenses related to the shared intellectual property related to the Switch-Blocker and Primer Switch technology described in the Agreement, Aegea and 
the Company amended the Cross-License Agreement whereby Aegea became solely responsible for costs associated with such technology.
Indemnification Agreements
We have entered into indemnification agreements with each of our current directors and executive officers. These agreements will require us to indemnify
these individuals to the fullest extent permitted under Delaware law against liabilities that may arise by reason of their service to us and to advance 
expenses incurred as a result of any proceeding against them as to which they could be indemnified. We also intend to enter into indemnification 
agreements with our future directors and executive officers. In addition, our predecessor company Biocept, Inc., a California corporation, entered into 
indemnification agreements with certain of our current directors and executive officers and certain prior directors and executive officers. These agreements 
will require us to indemnify these individuals to the fullest extent permitted under California law against liabilities that may arise by reason of their service 
to us, and to advance expenses incurred as a result of any proceeding against them as to which they could be indemnified.
Policies and Procedures for Related Party Transactions
We adopted a policy that our executive officers, directors, nominees for election as a director, beneficial owners of more than 5% of any class of our 
common stock, any members of the immediate family of any of the foregoing persons and any firms, corporations or other entities in which any of the 
foregoing persons is employed or is a partner or principal or in a similar position or in which such person has a 5% or greater beneficial ownership interest, 
collectively, related parties, are not permitted to enter into a transaction with us without the prior consent of our board of directors acting through the audit 
committee. Any request for us to enter into a transaction with a related party in which the amount involved exceeds $120,000, and in which such related 
party would have a direct or indirect interest, must first be presented to our audit committee for review, consideration and approval. In approving or 
rejecting any such proposal, our audit committee is to consider the material facts of the transaction, including, but not limited to, whether the transaction is 
on terms no less favorable than terms generally available to an unaffiliated third party under the same or similar circumstances, the extent of the benefits to 
us, the availability of other sources of comparable products or services and the extent of the related person’s interest in the transaction.
Item 14. Principal Accounting Fees and Services. 
AUDIT AND ALL OTHER FEES
The following table presents the fees billed to us for professional services related to the years ended December 31, 2022 and 2021 by RSM, MHM and its 
affiliate, CBIZ MHM, LLC:
 
 
 
RSM
   
MHM
 
 
 
2022
   
2021
   
2022
   
2021
 
Audit Fees
  $
823,981    $
—    $
222,226    $
632,194 
Tax Fees
   
—     
—     
78,430     
20,475 
All Other Fees
   
—     
—     
—     
— 
Total
  $
823,981    $
—    $
300,656    $
652,669 
 
(1)
Audit Fees consist of fees billed for professional services performed by MHM and RSM, including out-of-pocket expenses. The amounts presented 
relate to the audit of our annual financial statements, the review of financial statements included in our quarterly reports on Form 10-Q, review of 
our registration statements on Forms S-3 and S-8, and related services that are normally provided in connection with statutory and regulatory filings 
or engagements.
(2)
Tax Fees consist of fees billed for professional services relating to tax compliance, tax advice, and tax planning billed by MHM’s affiliate, CBIZ 
MHM, LLC, including out-of-pocket expenses. MHM leases substantially all of its personnel, 
128
(1)
(2)
(3)

 
who work under the control of MHM shareholders, from wholly-owned subsidiaries of CBIZ, Inc., including CBIZ MHM, LLC, in an alternative 
practice structure. Our audit committee approved all of 2022 and 2021 tax fees.
(3)
All Other Fees consist of fees for other permissible work that were not "audit-related fees" and not included within the above category descriptions.
AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES
Our audit committee has established a policy that all audit and permissible non-audit services provided by our independent registered public accounting 
firm will be pre-approved by the audit committee. These services may include audit services, audit- related services, tax services and other services. Our 
audit committee considers whether the provision of each non-audit service is compatible with maintaining the independence of our auditors. Pre-approval is 
detailed as to the particular service or category of services and is generally subject to a specific budget. Our independent registered public accounting firm 
and management are required to periodically report to our audit committee regarding the extent of services provided by our independent registered public 
accounting firm in accordance with this pre-approval, and the fees for the services performed to date.
129

 
PART IV 
 
 
Item 15. Exhibits, Financial Statement Schedules. 
(a) The following documents are filed as part of this Report:
1. Financial Statements. The following documents are included in Part II, Item 8 of this Report and are incorporated by reference herein: 
 
  
  
Page
No.
 
   
Report of Independent Registered Public Accounting Firm PCAOB ID 49
  
80
Report of Independent Registered Public Accounting Firm PCAOB ID 199
 
82
Balance Sheets at December 31, 2022 and 2021
  
85
Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2022 and 2021
  
86
Statements of Shareholders’ Equity for the Years Ended December 31, 2022 and 2021
 
87
Statements of Cash Flows for the Years Ended December 31, 2022 and 2021
  
88
Notes to Financial Statements
  
89
2. Financial Statement Schedules.
Not required. 
3. Exhibits. 
130

 
EXHIBITS 
 
Exhibit No.  
Description of Exhibit
3.1
  Amended and Restated Certificate of Incorporation, as amended by a Certificate of Amendment thereto (incorporated by reference to 
Exhibit 3.1.4 of the Registrant’s Current Report on Form 8-K, filed with the SEC on February 14, 2014).
3.2
  Certificate of Amendment of Certificate of Incorporation (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on 
Form 8-K, filed with the SEC on September 29, 2016).
3.3
  Certificate of Amendment to Certificate of Incorporation (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on 
Form 8-K, filed with the SEC on July 6, 2018).
3.4
  Certificate of Amendment to Certificate of Incorporation (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on 
Form 8-K, filed with the SEC on September 4, 2020).
3.5
  Certificate of Designation of Preferences, Rights and Limitations of Series A Convertible Preferred Stock (incorporated by reference to 
Exhibit 3.1 of the Registrant’s Current Report on Form 8-K, filed with the SEC on August 13, 2018).
3.6
  Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2.1 of the Registrant’s Registration Statement on Form S-1 (File 
No. 333-191323), filed with the SEC on September 23, 2013).
3.7
  Amendment to Amended and Restated Bylaws (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K, 
filed with the SEC on September 29, 2017).
3.8
  Second Amendment to Amended and Restated Bylaws (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on 
Form 8-K, filed with the SEC on March 24, 2022).
4.1
  Reference is made to Exhibits 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7. and 3.8
4.2
  Specimen Common Stock Certificate of the Registrant (incorporated by reference to Exhibit 4.2 of the Registrant’s Quarterly Report on 
Form 10-Q, filed with the SEC on November 16, 2020).
4.3
  Description of Common Stock (incorporated by reference to Exhibit 4.3 of the Registrant’s Annual Report on Form 10-K filed with the 
SEC on April 5, 2022).
4.4
  Form of Warrant issued to the lenders under the Loan and Security Agreement, dated as of April 30, 2014, by and among Biocept, Inc., 
Oxford Finance LLC, as collateral agent, and the lenders party thereto from time to time, including Oxford Finance LLC (incorporated by 
reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K, filed with the SEC on May 6, 2014).
4.5
  Form of Series 1 Common Stock Purchase Warrant (incorporated by reference to Exhibit 3.6 of the Registrant’s Registration Statement on 
Form S-1 (File No. 333-225147), as amended, filed with the SEC on July 11, 2018).
4.6
  Form of Series A Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.2 of the Registrant’s Current Report on Form 
8-K, filed with the SEC on September 24, 2018).
4.7
  Form of Series B Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.24 of the Registrant’s Registration Statement 
on Form S-1 (File No. 333-228566), filed with the SEC on November 28, 2018), and issued to investors on February 12, 2019.
4.8
  Form of Series B Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 
8-K, filed with the SEC on March 18, 2019).
4.9
  Form of Series C Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 
8-K, filed with the SEC on May 29, 2019).
4.10
  Form of Common Stock Warrant (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K, filed with the 
SEC on December 11, 2019).
4.11
  Form of Warrant Amendment (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K, filed with the 
SEC on January 9, 2020).
131

 
Exhibit No.  
Description of Exhibit
4.12
  Form of Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.2 of the Registrant’s Current Report on Form 8-K, filed 
with the SEC on January 9, 2020).
10.1+
  2007 Equity Incentive Plan (incorporated by reference to Exhibit 10.1 of the Registrant’s Registration Statement on Form S-1 (File No. 
333-191323), filed with the SEC on September 23, 2013).
10.2+
  Form of Stock Option Grant Notice and Option Agreement under 2007 Equity Incentive Plan (incorporated by reference to Exhibit 10.1.1 
of the Registrant’s Registration Statement on Form S-1 (File No. 333-191323), filed with the SEC on September 23, 2013).
10.3+
  Form of Restricted Stock Unit Grant Notice and Restricted Stock Unit Agreement under 2007 Equity Incentive Plan (incorporated by 
reference to Exhibit 10.1.2 of the Registrant’s Registration Statement on Form S-1 (File No. 333-191323), filed with the SEC on 
September 23, 2013).
10.4+
  Form of Indemnification Agreement between the Registrant and its officers and directors (incorporated by reference to Exhibit 10.3 of the 
Registrant’s Registration Statement on Form S-1 (File No. 333-191323), filed with the SEC on September 23, 2013).
10.5+
  Form of Indemnity Agreement between Biocept, Inc., a California corporation, and its officers and directors (incorporated by reference to 
Exhibit 10.4 of the Registrant’s Registration Statement on Form S-1 (File No. 333-191323), filed with the SEC on September 23, 2013).
 
10.6
  Assignment and Exclusive Cross-License Agreement between the Registrant and Aegea Biotechnologies, Inc. dated June 2, 2012 
(incorporated by reference to Exhibit 10.22 of the Registrant’s Registration Statement on Form S-1 (File No. 333-191323), as amended, 
filed with the SEC on January 30, 2014).
 
10.7
  Second Amendment to Assignment and Cross-License Agreement between the Registrant and Aegea Biotechnologies, Inc., dated May 24, 
2022 (incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, 
filed with the SEC on November 10, 2022).
10.8
  2014 Management Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q, filed with 
the SEC on August 8, 2014).
10.9
  Biocept, Inc. Amended and Restated 2013 Equity Incentive Plan, Form of Stock Option Grant Notice, Option Agreement, Form of 
Restricted Stock Unit Grant Notice and Restricted Stock Unit agreement for use thereunder, as amended (incorporated by reference to 
Exhibit 10.8 of the Registrant's Annual Report on Form 10-K, filed with the SEC on April 5, 2022).
 
10.10
  Lease Agreement, dated June 1, 2020, by and between Registrant and 9955 Mesa Rim A DE LLC (incorporated by reference to Exhibit 
10.3 to the Registrant’s Quarterly Report on Form 10-Q, filed with the SEC on August 13, 2020).
10.11+
  Employment Agreement, dated December 27, 2021, by and between the Registrant and Darrell Taylor, as amended.
10.12
  Non-Employee Director Compensation Policy, as amended (incorporated by reference to Exhibit 10.16 to the Registrant’s Annual Report 
on Form 10-K, filed with the SEC on April 5, 2022). 
10.13+
  Employment Offer Letter, dated February 15, 2022, by and between the Registrant and Samuel D. Riccitelli (incorporated by reference to 
Exhibit 10.1 to the Registrant’s Current Report on Form 8-K, filed with the SEC on February 16, 2022).
10.14+
  Employment Offer Letter, dated February 15, 2022, by and between the Registrant and Antonino Morales (incorporated by reference to 
Exhibit 10.2 to the Registrant’s Current Report on Form 8-K, filed with the SEC on February 16, 2022).
10.15+
  Employment Offer Letter, dated March 4, 2022, by and between the Registrant and Philippe Marchand, Ph.D. (incorporated by reference 
to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on March 8, 2022).
10.16
  Non-Employee Director Compensation Policy
23.1
  Consent of Mayer Hoffman McCann P.C.
23.2
  Consent of RSM US LLP
 
132

 
31.1
  Certification of Samuel D. Riccitelli, Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2
  Certification of Antonino Morales, Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*
  Certification of Samuel D. Riccitelli, Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of 
the Sarbanes-Oxley Act of 2002.
32.2*
  Certification of Antonino Morales, Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the 
Sarbanes-Oxley Act of 2002.
101.INS
  Inline XBRL Taxonomy Extension Schema Document
101.SCH
  Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.CAL
  Inline XBRL Taxonomy Extension Definition Linkbase Document
101.DEF
  Inline XBRL Taxonomy Extension Label Linkbase Document
101.LAB
  Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.PRE
  Inline XBRL Taxonomy Extension Presentation Linkbase Document
104
  Cover Page Interact File (formatted as inline XBRL and contained in Exhibit 101)
 
+ Indicates management contract or compensatory plan. 
* This certification is not deemed “filed” for purposes of Section 18 of the Securities Exchange Act, or otherwise subject to the liability of that section.
Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 
1934, except to the extent that the registrant specifically incorporates it by reference.
 
Item 16. Form 10-K Summary.
None
 
133

 
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed 
on its behalf by the undersigned, thereunto duly authorized. 
 
 
 BIOCEPT, INC.
 
 
Date: April 17, 2023
 By:
/s/ Samuel D. Riccitelli
 
  
Samuel D. Riccitelli
 
  
Interim President and Chief Executive Officer
KNOW ALL BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Samuel D. Riccitelli and 
Antonino Morales, and each and either of them, his or her true and lawful agent, proxy and attorney-in-fact, with full power of substitution and 
resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any amendments to this Annual Report on Form 10-
K and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying 
and confirming all that each of said attorneys-in-fact or their substitute or substitutes may do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons in the capacities and on 
the dates indicated.
 
Signature
 
Title
 
Date
 
 
 
 
 
/s/ Samuel D. Riccitelli
 
Interim President and Chief Executive Officer, Chair and Director
  April 17, 2023
Samuel D. Riccitelli
 
(Principal Executive Officer)
   
 
 
 
   
/s/ Antonino Morales
 
Interim Chief Financial Officer and Director
  April 17, 2023
Antonino Morales
 
(Principal Financial Officer and Principal Accounting Officer)
   
 
 
 
   
/s/ M. Faye Wilson
 
Director
  April 17, 2023
M. Faye Wilson
 
 
   
 
 
 
   
/s/ Marsha A. Chandler
 
Director
  April 17, 2023
Marsha A. Chandler
 
 
 
 
 
 
 
 
 
/s/ Bruce E. Gerhardt
 
Director
  April 17, 2023
Bruce E. Gerhardt
 
 
 
 
 
 
 
 
 
/s/ Quyen Dao-Haddock
 
Director
  April 17, 2023
Quyen Dao-Haddock
 
 
 
 
 
 
 
 
 
/s/ Ivor Royston
 
Director
  April 17, 2023
Ivor Royston
 
 
 
 
 
 
 
 
 
/s/ Linda Rubinstein
 
Director
  April 17, 2023
Linda Rubinstein
 
 
 
 
 
134

 
Exhibit 10.11
BIOCEPT, INC.
Darrell Taylor, Esq.
1345 Belleview Avenue
Cardiff, CA 92007
 
Re:	 Offer of Employment
Dear Darrell:
Biocept, Inc. (the “Company”) is pleased to offer you at-will employment in the position of Chief Legal and Compliance Officer (“CLO”) on 
the terms and conditions set forth in this letter agreement (the “Agreement”).  
1. Employment by the Company.  Your employment with the Company shall begin on December 27, 2021 or such date as otherwise agreed to 
by you and the Company [such actual date your employment begins (the “Start Date”)].  This is an exempt position, and during your employment with the 
Company, you will devote your best efforts and substantially all of your business time and attention to the business of the Company, except for approved 
vacation periods and reasonable periods of illness or other incapacities permitted by the Company’s general employment policies.  You shall perform such 
duties as are required by the Company’s Chief Executive Officer (“CEO”), to whom you will report.  You represent to the Company that you are not 
subject to or a party to any employment agreement, non-competition covenant, or other agreement that would be breached by, or prohibit you from, 
executing this Agreement and performing fully your duties and responsibilities hereunder.  Your primary work location shall be the Company’s office 
located in San Diego, California. The Company reserves the right to reasonably require you to perform your duties at places other than your primary work 
location from time to time, and to require reasonable business travel.  The Company may modify your job title and duties as it deems necessary and 
appropriate in light of the Company’s needs and interests from time to time. 
2. Compensation.
2.1Base Salary.  For services to be rendered hereunder, you shall receive a base salary at the rate of Four Hundred Thousand Dollars ($400,000) 
per year (the “Base Salary”), subject to standard payroll deductions and withholdings and payable in accordance with the Company’s regular payroll 
schedule.
2.2Annual Bonus.  During your employment, you will be eligible for an annual discretionary bonus with a target amount of forty percent (40%) 
of your then current annual Base Salary, prorated for the number of days employed in a calendar year (the “Annual Bonus”).  Whether you receive an 
Annual Bonus for any given year, and the amount of any such Annual Bonus, will be determined by the Board of Directors of the Company and/or its 
Compensation Committee (the “Board”) in its discretion based upon the achievement of corporate and/or individual objectives and milestones that are 
determined in the sole discretion of the Board. You must continue to be employed through the date the Annual Bonus is paid in order to earn such bonus. 
The Annual Bonus, if any, shall be paid to you in a lump sum no later than March 15th of the calendar year that follows the performance year, subject to 
applicable payroll deductions and withholdings.
2.3Equity. Subject to approval by the Board, you shall be granted an option to purchase One Hundred Fifty Thousand (150,000) shares of 
Common Stock in the Company at the fair market value on the date of grant (the “Option”).  The Option shall vest on a monthly basis over a four (4) year 
period (1/48th per month) and be governed in all respects by the terms of the governing plan documents and option agreement between you and the 
Company.
1.

 
3. Reasonable Business Expenses.  You will be eligible for reimbursement of all reasonable, necessary and documented out-of-pocket 
business, entertainment, and travel expenses incurred by you in connection with the performance of your duties hereunder in accordance with the 
Company's expense reimbursement policies and procedures.
4. Company Policies; Standard Company Benefits.  
4.1
The employment relationship between the parties shall be governed by the general employment policies and practices of the 
Company, except that when the terms of this Agreement differ from or are in conflict with the Company’s general employment policies or practices, this 
Agreement shall control.  
4.2
You shall be entitled to participate in all employee benefit programs for which you are eligible under the terms and conditions 
of the benefit plans that may be in effect from time to time and provided by the Company to its employees.  The Company reserves the right to cancel or 
change the benefit plans or programs it offers to its employees at any time.
4.3
You will initially be eligible to accrue paid time off, subject to applicable maximum accrual caps, in accordance with the 
Company’s paid time off policies as in effect from time to time.  You will also be eligible for certain paid holidays pursuant to Company policy.  The 
Company reserves the right to cancel or change its policies regarding vacation, paid time off, paid sick leave and/or holidays from time to time without 
amendment of this Agreement. 
5. At-Will Employment.  Your employment relationship is at-will.  Either you or the Company may terminate the employment relationship at 
any time, with or without cause or advance notice. 
6. Outside Activities During Employment.  Except with the prior written consent of the Company’s Chief Executive Officer, you will not 
during the term of your employment with the Company undertake or engage in any other employment, occupation or business enterprise, other than ones in 
which you are a passive investor.  You may engage in civic and not-for-profit activities so long as such activities do not materially interfere with the 
performance of your duties hereunder.  You agree not to acquire, assume or participate in, directly or indirectly, any position, investment or interest known 
to be adverse or antagonistic to the Company, its business or prospects, financial or otherwise.
7. Termination.
7.1
Term and Termination.  The term of this Agreement shall be the period commencing on the Start Date and ending on the date 
that this Agreement is terminated by either party pursuant to the provisions of this Agreement.  You are employed at-will, meaning that, subject to the terms 
and conditions set forth herein, either the Company or you may terminate your employment at any time, with or without Cause.  Upon termination of your 
employment for any reason, you shall resign from all positions and terminate any relationships as an employee, advisor, officer or director with the 
Company and any of its affiliates, each effective on the date of termination.
7.2
Compensation upon Termination.  Upon the termination of your employment for any reason, the Company shall pay you all 
of your accrued and unpaid wages earned through your last day of employment (the “Separation Date”).
7.3
Severance Benefits upon an Involuntary Termination.  If you are subject to an Involuntary Termination (that does not occur 
within the Change in Control Period (as defined below)), and provided that you remain in compliance with the terms of this Agreement (including the 
conditions described in Section 7.6 below), the Company shall provide you with the following benefits (the “Severance Benefits”): 
(a) Cash Severance.  The Company shall pay you, as severance, the equivalent of six (6) months (the “Severance Period”) 
of your Base Salary in effect as of the Separation Date, subject to standard payroll deductions and withholdings (the “Severance”). The Severance will be 
paid as a continuation on the Company’s regular payroll, beginning no later than the first regularly-scheduled payroll date following the sixtieth (60th) day 
after your Separation from Service, provided the Separation Agreement (as discussed in Section 7.6) has become effective.
2.

 
(b) Payment of Continued Group Health Plan Benefits.  If you are eligible for and timely elect continued group health 
plan coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985 or any state law of similar effect (“COBRA”) following your 
Involuntary Termination, the Company will pay your COBRA group health insurance premiums for you and your eligible dependents directly to the insurer 
until the earliest of (A) the end of the period immediately following your Involuntary Termination that is equal to the Severance Period (the “COBRA 
Payment Period”), (B) the expiration of your eligibility for continuation coverage under COBRA, or (C) the date when you become eligible for 
substantially equivalent health insurance coverage in connection with new employment or self-employment.  For purposes of this Section, references to 
COBRA premiums shall not include any amounts payable by you under a Section 125 health care reimbursement plan under the Code.  Notwithstanding 
the foregoing, if at any time the Company determines, in its sole discretion, that it cannot pay the COBRA premiums without potentially incurring financial 
costs or penalties under applicable law (including, without limitation, Section 2716 of the Public Health Service Act), then in lieu of providing the COBRA 
premiums, the Company will instead pay you on the last day of each remaining month of the COBRA Payment Period, a fully taxable cash payment equal 
to the COBRA premiums for that month, subject to applicable tax withholdings (such amount, the “Special Severance Payment”), which payments shall 
continue until the earlier of expiration of the COBRA Payment Period or the date when you become eligible for substantially equivalent health insurance 
coverage in connection with new employment or self-employment.  On the first payroll date following the effectiveness of the Separation Agreement, the 
Company will make the first payment to the insurer under this clause (and, in the case of the Special Severance Payment, such payment will be to you, in a 
lump sum) equal to the aggregate amount of payments that the Company would have paid through such date had such payments instead commenced on the 
Separation Date, with the balance of the payments paid thereafter on the schedule described above.  If you become eligible for coverage under another 
employer’s group health plan, you must immediately notify the Company of such event, and all payments and obligations under this subsection shall cease.
(c) Accelerated Vesting. The vesting and exercisability of all outstanding options, restricted stock unit awards, and other 
equity awards covering the Company’s common stock that are held by you as of immediately prior to the Involuntary Termination, to the extent such equity 
awards would otherwise have vested solely conditioned on your continued services with the Company, shall accelerate vesting in accordance with their 
applicable vesting schedules as if you had completed an additional number of months of service with the Company equal to the Severance Period as of the 
Separation Date.  For the avoidance of doubt, equity awards which vest wholly or partially subject to the attainment of performance goals are not eligible to 
accelerate vesting pursuant to this subsection.  
7.4
Severance Benefits upon an Involuntary Termination during Change in Control Period.  If you are subject to an 
Involuntary Termination during the Change in Control Period, and provided that you remain in compliance with the terms of this Agreement (including the 
conditions described in Section 7.6 below), the Company shall provide you with the following change in control severance benefits (the “Change in 
Control Severance Benefits”):
(a) Cash Severance.  The Company shall pay you, as severance, the equivalent of twelve (12) months (the “CIC 
Severance Period”) of your Base Salary in effect as of the Separation Date, subject to standard payroll deductions and withholdings (the “CIC 
Severance”). The CIC Severance will be paid as a continuation on the Company’s regular payroll, beginning no later than the first regularly-scheduled 
payroll date following the sixtieth (60th) day after your Separation from Service, provided the Separation Agreement (as discussed in Section 7.6) has 
become effective.
(b) Prorated Annual Bonus.  In addition, you will receive a payment equal to the product of (i) the Annual Bonus that you 
would have been entitled to receive if corporate and/or individual objectives and milestones were fully achieved for the calendar year in which the 
Separation Date occurs (less standard payroll deductions and applicable withholdings) and (ii) a fraction, the numerator of which is the number of days you 
were continuously employed by the Company during the year of termination and the denominator of which is the number of days in such year, to be paid 
periodically in installments during the CIC Severance Period in accordance with the Company’s normal payroll practices beginning on the first regularly-
scheduled payroll date following the sixtieth (60th) day after your Separation from Service, provided the Separation Agreement (as discussed in Section 7.6) 
has become effective.
(c) Payment of Continued Group Health Plan Benefits.  If you are eligible for and timely elect continued group health 
plan coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985 or any state law of similar effect (“COBRA”) following your 
Involuntary Termination, the Company will pay your COBRA group health insurance premiums for you and your eligible dependents directly to the insurer 
until the earliest of (A) the end of the period immediately following your Involuntary Termination that is equal to the CIC Severance Period (the “CIC 
COBRA Payment Period”), (B) the expiration of your eligibility for continuation coverage under COBRA, or (C) the 
3.

 
date when you become eligible for substantially equivalent health insurance coverage in connection with new employment or self-employment.  For 
purposes of this Section, references to COBRA premiums shall not include any amounts payable by you under a Section 125 health care reimbursement 
plan under the Code.  Notwithstanding the foregoing, if at any time the Company determines, in its sole discretion, that it cannot pay the COBRA 
premiums without potentially incurring financial costs or penalties under applicable law (including, without limitation, Section 2716 of the Public Health 
Service Act), then regardless of whether you elect continued health coverage under COBRA, and in lieu of providing the COBRA premiums, the Company 
will instead pay you on the last day of each remaining month of the CIC COBRA Payment Period, a fully taxable cash payment equal to the COBRA 
premiums for that month, subject to applicable tax withholdings (such amount, the “Special Severance Payment”), which payments shall continue until 
the earlier of expiration of the CIC COBRA Payment Period or the date when you become eligible for substantially equivalent health insurance coverage in 
connection with new employment or self-employment.  On the first payroll date following the effectiveness of the Separation Agreement, the Company 
will make the first payment to the insurer under this clause (and, in the case of the Special Severance Payment, such payment will be to you, in a lump 
sum) equal to the aggregate amount of payments that the Company would have paid through such date had such payments instead commenced on the 
Separation Date, with the balance of the payments paid thereafter on the schedule described above.  If you become eligible for coverage under another 
employer’s group health plan, you must immediately notify the Company of such event, and all payments and obligations under this subsection shall cease.
(d)
Accelerated Vesting.  Effective as of the later of the Separation Date or the effective date of the Change in Control, the vesting 
and exercisability of all outstanding time-based stock options and other time-based equity awards covering the Company’s common stock that are held by 
you as of immediately prior to the Separation Date shall accelerate vesting in full.  For the avoidance of doubt, vesting acceleration under this subsection is 
conditioned upon the actual consummation of a Change in Control.
For the avoidance of doubt, in no event shall you be entitled to benefits under both Section 7.3 and this Section 7.4.  If you are eligible for 
benefits under both Section 7.3 and this Section 7.4, you shall receive the benefits set forth in this Section 7.4 and such benefits shall be reduced by any 
benefits previously provided to you under Section 7.3.
 
7.5
Termination for Cause; Resignation Without Good Reason; Death or Disability.  If you resign without Good Reason, or 
the Company terminates your employment for Cause, upon dissolution or cessation of the Company, or upon your death or disability, then (a) you will no 
longer vest in any equity awards (including without limitation, the Option), (b) all payments of compensation by the Company to you hereunder will 
terminate immediately (except as to amounts already earned), and (c) you will not be entitled to any Severance Benefits or Change in Control Severance 
Benefits.
7.6
Conditions to Receipt of Severance Benefits and Change in Control Severance Benefits.  The receipt of the Severance 
Benefits and Change in Control Severance Benefits will be subject to you signing and not revoking a separation agreement and general release of claims in 
a form reasonably satisfactory to the Company (the “Separation Agreement”) by no later than the sixtieth (60th) day after the Separation Date (“Release 
Deadline”).  No Severance Benefits or Change in Control Severance Benefits will be paid or provided until the Separation Agreement becomes effective.  
You shall also resign from all positions and terminate any relationships as an employee, advisor, officer or director with the Company and any of its 
affiliates, each effective on the Separation Date.
8. Definitions.  
8.1
Cause.  For purposes of this Agreement, “Cause” for termination means: (a) commission of any felony or crime involving 
dishonesty; (b) participation in any fraud against the Company; (c) material breach of your duties to the Company; (d) persistent unsatisfactory 
performance of job duties after written notice from the Company and an opportunity to cure (if deemed curable by the Company in its sole discretion); (e) 
intentional damage to any property of the Company; (f) misconduct, or other violation of Company policy that causes harm; (g) breach of this Agreement, 
the Confidentiality Agreement (as defined below), or any other written agreement with the Company; or (h) conduct by you which in the good faith and 
reasonable determination of the Company demonstrates gross unfitness to serve.
8.2
Change in Control.   For purposes of this Agreement, a “Change in Control” shall have the meaning as set forth in the 
Company’s Amended and Restated 2013 Equity Incentive Plan.
4.

 
8.3
Change in Control Period. For purposes of this Agreement, the “Change in Control Period” means the period commencing 
one (1) month prior to a Change in Control and ending twelve (12) months following a Change in Control.  
8.4
Code. For purposes of this Agreement, “Code” means the U.S. Internal Revenue Code of 1986 (as it has been and may be 
amended from time to time) and any regulations and guidance that has been promulgated or may be promulgated from time to time thereunder and any 
state law of similar effect.
8.5
Good Reason.  For purposes of this Agreement, you shall have “Good Reason” for resignation from employment with the 
Company if any of the following actions are taken by the Company without your prior written consent: (a) a material reduction in your Base Salary, which 
the parties agree is a reduction of at least 10% of your Base Salary (unless pursuant to a salary reduction program applicable generally to the Company’s 
similarly situated employees); (b) a material reduction in your duties (including responsibilities and/or authorities), provided, however, that a change in job 
position (including a change in title) shall not be deemed a “material reduction” in and of itself unless your new duties are materially reduced from the prior 
duties; or (c) relocation of your principal place of employment to a place that increases your one-way commute by more than fifty (50) miles as compared 
to your then-current principal place of employment immediately prior to such relocation (disregarding, for this purpose, any required or permitted remote 
work arrangement due to the impact of COVID-19 or another pandemic, endemic or similar occurrence in connection with which similar restrictions apply, 
or reestablishment of your principal work location as in effect as of immediately prior to any such pandemic, endemic or similar occurrence and associated 
remote work arrangement).  In order to resign for Good Reason, you must provide written notice to the Company’s Board within 30 days after the first 
occurrence of the event giving rise to Good Reason setting forth the basis for your resignation, allow the Company at least 30 days from receipt of such 
written notice to cure such event, and if such event is not reasonably cured within such period, you must resign from all positions you then hold with the 
Company not later than 30 days after the expiration of the cure period.
8.6
Involuntary Termination. For purposes of this Agreement, “Involuntary Termination” means a termination of your 
employment with the Company pursuant to either (i) a termination initiated by the Company without Cause, or (ii) your resignation for Good Reason, and 
provided in either case such termination constitutes a Separation from Service. An Involuntary Termination does not include any other termination of your 
employment, including a termination due to your death or disability.
8.7
Separation from Service. For purposes of this Agreement, “Separation from Service” means a “separation from service”, as 
defined under Treasury Regulation Section 1.409A-1(h).
9. Proprietary Information Obligations.  As a condition of employment, you shall execute and abide by the Company’s standard form of 
Employee Proprietary Information and Inventions Assignment Agreement (the “Confidentiality Agreement”), attached as Exhibit A.  In your work for 
the Company, you will be expected not to use or disclose any confidential information, including trade secrets, of any former employer or other person to 
whom you have an obligation of confidentiality. Rather, you will be expected to use only that information which is generally known and used by persons 
with training and experience comparable to your own, which is common knowledge in the industry or otherwise legally in the public domain, or which is 
otherwise provided or developed by the Company. You agree that you will not bring onto Company premises any unpublished documents or property 
belonging to any former employer or other person to whom you have an obligation of confidentiality. You hereby represent that you have disclosed to the 
Company any contract you have signed that may restrict your activities on behalf of the Company.
10.Section 409A.  It is intended that all of the severance benefits and other payments payable under this Agreement satisfy, to the greatest extent 
possible, the exemptions from the application of Code Section 409A provided under Treasury Regulations Sections 1.409A 1(b)(4), 1.409A 1(b)(5) and 
1.409A 1(b)(9), and this Agreement will be construed to the greatest extent possible as consistent with those provisions, and to the extent not so exempt, 
this Agreement (and any definitions hereunder) will be construed in a manner that complies with Section 409A.  For all purposes of Code Section 409A 
(including, without limitation, for purposes of Treasury Regulations Sections 1.409A 2(b)(2)(i) and (iii)), your right to receive any installment payments
under this Agreement (whether severance payments, reimbursements or otherwise) shall be treated as a right to receive a series of separate payments and, 
accordingly, each installment payment hereunder shall at all times be considered a separate and distinct payment.  Notwithstanding any provision to the 
contrary in this Agreement, if you are deemed by the Company at the time of your Separation from Service to be a “specified employee” for purposes of 
Code Section 409A(a)(2)(B)(i), and if any of the payments upon Separation from Service set 
5.

 
forth herein and/or under any other agreement with the Company are deemed to be “deferred compensation,” then to the extent delayed commencement of 
any portion of such payments is required in order to avoid a prohibited distribution under Code Section 409A(a)(2)(B)(i) and the related adverse taxation 
under Section 409A, such payments shall not be provided to you prior to the earliest of (i) the first date following expiration of the six-month period 
following the date of your Separation from Service with the Company, (ii) the date of your death or (iii) such earlier date as permitted under Section 409A 
without the imposition of adverse taxation.  Upon the first business day following the expiration of such applicable Code Section 409A(a)(2)(B)(i) period, 
all payments deferred pursuant to this Paragraph shall be paid in a lump sum to you, and any remaining payments due shall be paid as otherwise provided 
herein or in the applicable agreement. No interest shall be due on any amounts so deferred.  If the severance benefits are not covered by one or more 
exemptions from the application of Section 409A and the Release Deadline occurs in the calendar year following the calendar year of your Separation from 
Service, the Separation Agreement will not be deemed effective any earlier than the Release Deadline for purposes of determining the timing of provision 
of any severance benefits.  
11.Section 280G.  
If any payment or benefit you will or may receive from the Company or otherwise (a “280G Payment”) would (i) constitute a “parachute 
payment” within the meaning of Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code 
(the “Excise Tax”), then any such 280G Payment pursuant to this Agreement or otherwise (a “Payment”) shall be equal to the Reduced Amount.  The 
“Reduced Amount” shall be either (x) the largest portion of the Payment that would result in no portion of the Payment (after reduction) being subject to 
the Excise Tax or (y) the largest portion, up to and including the total, of the Payment, whichever amount (i.e., the amount determined by clause (x) or by 
clause (y)), after taking into account all applicable federal, state and local employment taxes, income taxes, and the Excise Tax (all computed at the highest 
applicable marginal rate), results in your receipt, on an after-tax basis, of the greater economic benefit notwithstanding that all or some portion of the 
Payment may be subject to the Excise Tax.  If a reduction in a Payment is required pursuant to the preceding sentence and the Reduced Amount is 
determined pursuant to clause (x) of the preceding sentence, the reduction shall occur in the manner (the “Reduction Method”) that results in the greatest 
economic benefit for you.  If more than one method of reduction will result in the same economic benefit, the items so reduced will be reduced pro rata (the 
“Pro Rata Reduction Method”).
Notwithstanding the foregoing, if the Reduction Method or the Pro Rata Reduction Method would result in any portion of the Payment being 
subject to taxes pursuant to Section 409A that would not otherwise be subject to taxes pursuant to Section 409A, then the Reduction Method and/or the Pro 
Rata Reduction Method, as the case may be, shall be modified so as to avoid the imposition of taxes pursuant to Section 409A as follows:  (A) as a first 
priority, the modification shall preserve to the greatest extent possible, the greatest  economic benefit for you as determined on an after-tax basis; (B) as a 
second priority, Payments that are contingent on future events (e.g., being terminated without Cause), shall be reduced (or eliminated) before Payments that 
are not contingent on future events; and (C) as a third priority, Payments that are “deferred compensation” within the meaning of Section 409A shall be 
reduced (or eliminated) before Payments that are not deferred compensation within the meaning of Section 409A.
Unless you and the Company agree on an alternative accounting firm, the accounting firm engaged by the Company for general tax compliance 
purposes as of the day prior to the effective date of the change in control transaction triggering the Payment shall perform the foregoing calculations.  If the 
accounting firm so engaged by the Company is serving as accountant or auditor for the individual, entity or group effecting the change in control 
transaction, the Company shall appoint a nationally recognized accounting firm to make the determinations required hereunder.  The Company shall bear 
all expenses with respect to the determinations by such accounting firm required to be made hereunder.  The Company shall use commercially reasonable 
efforts to cause the accounting firm engaged to make the determinations hereunder to provide its calculations, together with detailed supporting 
documentation, to you and the Company within fifteen (15) calendar days after the date on which your right to a 280G Payment becomes reasonably likely 
to occur (if requested at that time by you or the Company) or such other reasonable time as requested by you or the Company.
If you receive a Payment for which the Reduced Amount was determined pursuant to clause (x) of the first paragraph of this Section and the 
Internal Revenue Service determines thereafter that some portion of the Payment is subject to the Excise Tax, you shall promptly return to the Company a 
sufficient amount of the Payment (after reduction pursuant to clause (x) of the first paragraph of this Section so that no portion of the remaining Payment is 
subject to the Excise Tax).  For the avoidance of doubt, if the Reduced Amount was determined pursuant to clause (y) in the first 
6.

 
paragraph of this Section, you shall have no obligation to return any portion of the Payment pursuant to the preceding sentence.
12.Arbitration of All Disputes.
12.1
Agreement to Arbitrate.  To ensure the timely and economical resolution of disputes that may arise between you and the 
Company, both you and the Company mutually agree that pursuant to the Federal Arbitration Act, 9 U.S.C. §1-16, and to the fullest extent permitted by 
applicable law, you and the Company will submit solely to final, binding and confidential arbitration any and all disputes, claims, or causes of action 
arising from or relating to: (i)  the negotiation, execution, interpretation, performance, breach or enforcement of this Agreement; or (ii) your employment 
with the Company (including but not limited to all statutory claims); or (iii) the termination of your employment with the Company (including but not 
limited to all statutory claims). BY AGREEING TO THIS ARBITRATION PROCEDURE, BOTH YOU AND THE COMPANY WAIVE THE 
RIGHT TO RESOLVE ANY SUCH DISPUTES THROUGH A TRIAL BY JURY OR JUDGE OR THROUGH AN ADMINISTRATIVE 
PROCEEDING. 
12.2
Arbitrator Authority. The arbitrator shall have the sole and exclusive authority to determine whether a dispute, claim or cause 
of action is subject to arbitration under this Section and to determine any procedural questions which grow out of such disputes, claims or causes of action 
and bear on their final disposition.  
12.3
Individual Capacity Only.  All claims, disputes, or causes of action under this Section, whether by you or the Company, must 
be brought solely in an individual capacity, and shall not be brought as a plaintiff (or claimant) or class member in any purported class or representative 
proceeding, nor joined or consolidated with the claims of any other person or entity.   The arbitrator may not consolidate the claims of more than one 
person or entity, and may not preside over any form of representative or class proceeding.  To the extent that the preceding sentences in this Section are 
found to violate applicable law or are otherwise found unenforceable, any claim(s) alleged or brought on behalf of a class shall proceed in a court of law 
rather than by arbitration.   
12.4
Arbitration Process.  Any arbitration proceeding under this Section shall be presided over by a single arbitrator and conducted 
by JAMS, Inc. (“JAMS”) in San Diego, California, or as otherwise agreed to by you and the Company, under the then applicable JAMS rules for the 
resolution of employment disputes (available upon request and also currently available at http://www.jamsadr.com/rules-employment-arbitration/).  You 
and the Company both have the right to be represented by legal counsel at any arbitration proceeding, at each party’s own expense.  The arbitrator shall: (i) 
have the authority to compel adequate discovery for the resolution of the dispute; (ii) issue a written arbitration decision, to include the arbitrator’s essential 
findings and conclusions and a statement of the award; and (iii) be authorized to award any or all remedies that you or the Company would be entitled to 
seek in a court of law. The Company shall pay all JAMS arbitration fees in excess of the amount of court fees that would be required of you if the dispute 
were decided in a court of law.   
12.5
Excluded Claims.  This Section shall not apply to any action or claim that cannot be subject to mandatory arbitration as a 
matter of law, including, without limitation, claims brought pursuant to the California Private Attorneys General Act of 2004, as amended, the California 
Fair Employment and Housing Act, as amended, and the California Labor Code, as amended, to the extent such claims are not permitted by applicable law 
to be submitted to mandatory arbitration and such applicable law is not preempted by the Federal Arbitration Act  or otherwise invalid (collectively, the 
“Excluded Claims”).  In the event you intend to bring multiple claims, including one of the Excluded Claims listed above, the Excluded Claims may be 
filed with a court, while any other claims will remain subject to mandatory arbitration.
12.6
Injunctive Relief and Final Orders.  Nothing in this Section is intended to prevent either you or the Company from obtaining 
injunctive relief in court to prevent irreparable harm pending the conclusion of any such arbitration. Any final award in any arbitration proceeding 
hereunder may be entered as a judgment in the federal and state courts of any competent jurisdiction and enforced accordingly.
13.General Provisions. This Agreement, together with the Confidentiality Agreement, constitutes the entire agreement between you and the 
Company with regard to this subject matter and is the complete, final, and exclusive embodiment of the parties’ agreement with regard to this subject 
matter.  This Agreement is entered into without reliance 
7.

 
on any promise or representation, written or oral, other than those expressly contained herein, and it supersedes any other such promises, warranties or 
representations.  Modifications or amendments to this Agreement, other than those changes expressly reserved to the Company’s discretion in this letter, 
must be made in a written agreement signed by you and the Company’s Chief Executive Officer. Whenever possible, each provision of this Agreement will 
be interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Agreement is held to be invalid, illegal or 
unenforceable in any respect under any applicable law or rule in any jurisdiction, such invalidity, illegality or unenforceability will not affect any other 
provision or any other jurisdiction, but this Agreement will be reformed, construed and enforced in such jurisdiction to the extent possible in keeping with 
the intent of the parties.  Any waiver of any breach of any provisions of this Agreement must be in writing to be effective, and it shall not thereby be 
deemed to have waived any preceding or succeeding breach of the same or any other provision of this Agreement.  This Agreement is intended to bind and 
inure to the benefit of and be enforceable by you and the Company, and their respective successors, assigns, heirs, executors and administrators. The 
Company may freely assign this Agreement, without your prior written consent.  You may not assign any of your duties hereunder and you may not assign 
any of your rights hereunder without the written consent of the Company.  This Agreement shall become effective as of the Start Date and shall terminate 
upon your termination of employment with the Company.  The obligations as forth under Sections 7, 8, 9, 10, 11, 12, and 13 will survive the termination of 
this Agreement.  All questions concerning the construction, validity and interpretation of this Agreement will be governed by the laws of the State of 
California.  
This offer is subject to satisfactory proof of your identity and right to work in the United States and other applicable pre-employment screenings.  
 
We look forward to having you join us.  If you have any questions about this Agreement, please do not hesitate to call me.
 
 
 
 
 
 
 
 
Best regards,
 
 
Biocept, Inc.
 
 
	
	
	
	
	
Samuel Riccitelli, Interim President & CEO
 
 
 
Accepted and agreed:
 
 
	
	
	
	
	
Darrell Taylor, Esq.
8.

Exhibit 10.16
Exhibit 10.16
BIOCEPT, INC.
NON-EMPLOYEE DIRECTOR COMPENSATION POLICY
 
Each member of the Board of Directors (the “Board”) of Biocept, Inc. (the “Company”) who is a non-employee director of the Company (each such 
member, a “Non-Employee Director”) will receive the compensation described in this Non-Employee Director Compensation Policy (the “Director 
Compensation Policy”).
 
A Non-Employee Director may decline all or any portion of his or her compensation by giving notice to the Company prior to the date cash is to be paid or 
equity awards are to be granted, as the case may be.
•
Annual Retainer. 
For service as a director: an annual cash retainer of $40,000 (in addition to any annual cash retainers otherwise paid).
•
Board Chair. 
For service as Board Chair: an annual cash retainer of $50,000 (in addition to any annual cash retainers otherwise paid).  
•
Lead Independent Director. 
For service as Lead Independent Director: an annual cash retainer of $50,000 (in addition to any annual cash retainers otherwise paid).  
•
Audit Committee.
For service as Chair of the audit committee: an annual cash retainer of $15,000 (in addition to any annual cash retainers otherwise paid).
For service as member of the audit committee other than as its Chair: an annual cash retainer of $7,500 (in addition to any annual cash retainers 
otherwise paid).
•
Compensation Committee.
For service as Chair of the compensation committee: an annual cash retainer of $10,000 (in addition to any annual cash retainers otherwise paid).
For service as member of the compensation committee other than as its Chair: an annual cash retainer of $5,000 (in addition to any annual cash 
retainers otherwise paid).
•
Nominating and Corporate Governance Committee.
For service as Chair of the nominating and corporate governance committee: an annual cash retainer of $10,000 (in addition to any annual cash 
retainers otherwise paid).
For service as member of the nominating and corporate governance committee other than as its Chair: an annual cash retainer of $5,000 (in 
addition to any annual cash retainers otherwise paid).
•
Science, Technology and Clinical Affairs Committee.
For service as Chair of the science, technology and clinical affairs committee: an annual cash retainer of $10,000 (in addition to any annual cash 
retainers otherwise paid).
For service as member of the science, technology and clinical affairs committee other than as its Chair: an annual cash retainer of $5,000 (in 
addition to any annual cash retainers otherwise paid).
•
Initial Awards. 
For each Non-Employee Director who is initially elected or appointed to the Board: an option to purchase 10,000 shares of common stock.
 
 

 
 
•
Annual Awards.
For each Non-Employee Director who (i) has been serving on the Board for at least six months as of the date of any annual meeting of the 
stockholders and (ii) will continue to serve as a Non-Employee Director immediately following such meeting: an option to purchase 10,000 
shares of common stock.
The annual cash retainers shall be earned and paid on a calendar quarterly basis, subject to proration in the case of service during only a portion of a 
calendar quarter.
The per share exercise price of each option granted to the Non-Employee Directors shall equal the fair market value of a share of common stock on the date 
the option is granted. Each such initial award shall vest and become exercisable in substantially equal installments on each of the first three anniversaries of 
the vesting commencement date, subject to Continuous Service (as defined in the Company’s Amended and Restated 2013 Equity Incentive Plan, as 
amended (the “Plan”)) on the Board through each such vesting date; provided, that all stock options under the Director Compensation Policy shall vest in 
full upon the occurrence of a Change in Control (as defined in the Plan). Each such annual award shall fully vest and become exercisable on the first 
anniversary of the vesting commencement date, subject to Continuous Service on the Board through each such vesting date; provided, that all stock options 
under the Director Compensation Policy shall vest in full upon the occurrence of a Change in Control. The term of each such stock option shall be 10 years 
from the date the option is granted. Upon a Non-Employee Director’s cessation of Continuous Service on the Board for any reason, his or her stock options 
granted under this Director Compensation Policy would, to the extent vested on the date of cessation of Continuous Service, remain exercisable for 12 
months following the cessation of his or her Continuous Service on the Board (or such longer period as the Board may determine in its discretion on or 
after the date of such stock options).
 

Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
 
We consent to the incorporation by reference in Registration Statements (Nos. 333-194930, 333-202656, 333-206347, 333-212960, 333-218018, 333-
227267, 333-227900, 333-233285, 333-251676, 333-261093 and 333-264215) on Forms S-8 and Registration Statements (Nos. 333-234459, 333-230797 
and 333-228566) on Forms S-1 of Biocept, Inc. (“Company”) of our report dated April 5, 2022, relating to our audit of the financial statements as of and 
for the year ended December 31, 2021, included in this Annual Report on Form 10-K of the Company for the year ended December 31, 2022.
 
/s/ Mayer Hoffman McCannP.C. 
 
San Diego, CA
April 17, 2023
 

Exhibit 23.2
Consent of Independent Registered Public Accounting Firm
 
 
We consent to the incorporation by reference in Registration Statements (No. 333-194930, 333-202656, 333-206347, 333-212960, 333-
218018, 333-227267, 333-227900, 333-233285, 333-251676, 333-261093
and 333-264215) on Form S-8 and Registration Statements (No. 333-234459, 333-230797 and
333-228566) on Form S-1 of Biocept,Inc. (the Company)of our report dated April17, 2023, relatingto the financial statements of the Company, 
which is included in this Annual Report on Form 10-K of Biocept, Inc. for the year ended December 31, 2022.
 
 
/s/ RSM US LLP
 
Dallas, Texas 
April 17, 2023
 

 
EXHIBIT 31.1 
CERTIFICATION 
I, Samuel D. Riccitelli, certify that: 
1.
I have reviewed this Annual Report on Form 10-K of Biocept, Inc.; 
2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the 
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this 
report; 
3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the 
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 
4.
The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in 
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have: 
a.
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to 
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those 
entities, particularly during the period in which this report is being prepared; 
b.
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our 
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for 
external purposes in accordance with generally accepted accounting principles; 
c.
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the 
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 
d.
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent 
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an report) that has materially affected, or is reasonably likely to materially 
affect, the registrant’s internal control over financial reporting; and 
5.
The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the 
registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): 
a.
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are 
reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and 
b.
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal 
control over financial reporting. 
Date: April 17, 2023
 
/s/ Samuel D. Riccitelli
Samuel D. Riccitelli
Interim President and Chief Executive Officer
(Principal Executive Officer)
 
 

 
EXHIBIT 31.2 
CERTIFICATION 
I, Antonino Morales, certify that: 
1.
I have reviewed this Annual Report on Form 10-K of Biocept, Inc.; 
2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the 
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this 
report; 
3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the 
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 
4.
The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in 
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have: 
a.
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to 
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those 
entities, particularly during the period in which this report is being prepared; 
b.
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our 
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for 
external purposes in accordance with generally accepted accounting principles; 
c.
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the 
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 
d.
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent 
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an report) that has materially affected, or is reasonably likely to materially 
affect, the registrant’s internal control over financial reporting; and 
5.
The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the 
registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): 
a.
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are 
reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and 
b.
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal 
control over financial reporting. 
Date: April 17, 2023
 
 /s/ Antonino Morales
Antonino Morales
Interim Chief Financial Officer
(Principal Financial and Accounting Officer)
 
 

 
EXHIBIT 32.1 
CERTIFICATION 
I, Samuel D. Riccitelli, hereby certify pursuant to Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 as amended (the “Exchange 
Act”), and 18 U.S.C. Section 1350, that, to my knowledge, the Annual Report on Form 10-K of Biocept, Inc. for the fiscal year ended December 31, 2022 
(the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act of 1934 and that the information contained in the Report 
fairly presents, in all material respects, the financial condition and results of operations of Biocept, Inc. 
 
Date: April 17, 2023
 /s/ Samuel D. Riccitelli
 
 Samuel D. Riccitelli
 
 
Interim President and Chief Executive Officer
(Principal Executive Officer)
This certification accompanies the Report pursuant to Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act and 18 U.S.C. Section 1350 and shall not 
be deemed filed by the Company for purposes of Section 18 of the Exchange Act. 
 

 
EXHIBIT 32.2 
CERTIFICATION 
I, Antonino Morales, hereby certify pursuant to Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 as amended (the “Exchange 
Act”), and 18 U.S.C. Section 1350, that, to my knowledge, the Annual Report on Form 10-K of Biocept, Inc. for the fiscal year ended December 31, 2022 
(the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act and that the information contained in the Report fairly 
presents, in all material respects, the financial condition and results of operations of Biocept, Inc. 
 
Date: April 17, 2023
 /s/ Antonino Morales
 
 Antonino Morales
 
 Interim Chief Financial Officer
 
 (Principal Financial and Accounting Officer)
This certification accompanies the Report pursuant to Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act of 1934 and 18 U.S.C. Section 1350 and 
shall not be deemed filed by the Company for purposes of Section 18 of the Exchange Act of 1934.