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Halozyme Therapeutics

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FY2017 Annual Report · Halozyme Therapeutics
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2017 ANNUAL REPORT

Strategic Partnerships.
Focus on Patients.

Halozyme Therapeutics, Inc.

11388 Sorrento Valley Road

San Diego, CA 92121

858-794-8889

info@halozyme.com

www.halozyme.com

Copyright © 2018. Halozyme, Inc.  

All rights reserved. All trademarks belong 

to their respective owners. 

On the cover:

In 2017, Halozyme hosted meetings with investigators 

and clinicians in cities around the world to prepare more 

than 200 sites in 22 countries for the screening and 

enrolling of pancreatic cancer patients in the company’s 

Phase 3 HALO-301 Pancreatic clinical study.

PRODUCT PIPELINE

PRODUCT, COLLABORATION PRODUCTS 

THERAPEUTIC 

RESEARCH FOCUS/

DEVELOPMENT 

AND PRODUCT CANDIDATES

AREA

INDICATION (PARTNER)

STAGE

Oncology Pipeline 

and Product 

Candidates

PEGPH20 with ABRAXANE®  

(nab-paclitaxel) and gemcitabine

Oncology

Pancreas Cancer

Phase 3

PEGPH20 with KEYTRUDA® 

Oncology

Gastric Cancer/Non-

Phase 1

(pembrolizumab)

Small Cell Lung Cancer

PEGPH20 with HALAVEN®  

Oncology

Breast Cancer 

Phase 1*

PEGPH20 with TECENTRIQ®  

Oncology

Pancreas Cancer 

Phase 1

(eribulin)

(atezolizumab)

(atezolizumab)

(atezolizumab)

PEGPH20 with TECENTRIQ®  

Oncology

PEGPH20 with TECENTRIQ®  

Oncology

(Eisai)

(Genentech)

Gastric Cancer 

(Genentech)

Gall Bladder Cancer/ 

Cholangiocarcinoma

Phase 1

Phase 1

PEG-ADA2: PEGylated-Human 

Oncology

Various

Preclinical

Adenosine Deaminase 2

*No further clinical development planned on the Phase 2 portion of this study.

Proprietary 

Approved Product

HYLENEX®  recombinant 

(hyaluronidase human injection)

Various

Adjuvant for subcutaneous 

U.S. Approved

fluid delivery for dispersion 

& absorption of other 

injected drugs 

ENHANZE® 

Collaboration 

Approved Products

Roche

HERCEPTIN®  SC (trastuzumab) 

Oncology

Breast Cancer 

Oncology

Multiple blood 

Cancers

Cancers

Oncology

Multiple blood 

U.S. approved

EU approved and other 

countries outside U.S.

EU approved and other 

countries outside U.S.

MABTHERA®  SC (rituximab) 

(Outside of the U.S.)

RITUXAN HYCELA®   

(rituximab/hyaluronidase human) 

(U.S.)

Baxalta

10% (Human) with Recombinant  

Human Hyaluronidase] 

HYQVIA®  [Immune Globulin Infusion  

Immunology

Primary 

Immunodeficiency

ENHANZE® 

Collaboration  

Product Candidates

Roche  (Total of 9 potential targets)

PERJETA®  (pertuzumab) 

Oncology

Breast Cancer

Phase 1 

Approved for adults in 

the EU, U.S., Puerto Rico 

and Australia; Pediatric 

indication approved in EU

(Plans for Phase 3 fixed-

dose combination with 

Herceptin in 2018)

Phase 1

Phase 3 

Phase 3 

Phase 3 

Phase 3 

Phase 2 

Phase 1

Phase 1

Preclinical

Preclinical

Oncology

Amyloidosis 

Smoldering Myeloma 

Multiple Myeloma (2L+) 

Multiple Myeloma (4L) 

Multiple Myeloma (1L+)

Multiple Myeloma (3L+)

Undisclosed

Pfizer   (Total of 6 potential targets)

Janssen   (Total of 5 potential targets)

DARZALEX® (daratumumab)

AbbVie   (Total of 9 potential targets)

Lilly   (Total of 5 potential targets)

Undisclosed

Bristol-Myers Squibb    

(Total of 11 potential targets)

PD-1 target

Oncology

Alexion   (Total of 4 potential targets)

ALXN1210 SC

Various

All trademarks belong to their respective owners.

 
 
 
 
 
 
 
 
 
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2017 ANNUAL REPORT

Strategic Partnerships.

Focus on Patients.

Halozyme Therapeutics, Inc.

11388 Sorrento Valley Road

San Diego, CA 92121

858-794-8889

info@halozyme.com

www.halozyme.com

Copyright © 2018. Halozyme, Inc.  

All rights reserved. All trademarks belong 

to their respective owners. 

On the cover:

In 2017, Halozyme hosted meetings with investigators 

and clinicians in cities around the world to prepare more 

than 200 sites in 22 countries for the screening and 

enrolling of pancreatic cancer patients in the company’s 

Phase 3 HALO-301 Pancreatic clinical study.

PRODUCT PIPELINE

PRODUCT, COLLABORATION PRODUCTS 
AND PRODUCT CANDIDATES

THERAPEUTIC 
AREA

RESEARCH FOCUS/
INDICATION (PARTNER)

DEVELOPMENT 
STAGE

Oncology Pipeline 
and Product 
Candidates

PEGPH20 with ABRAXANE®  
(nab-paclitaxel) and gemcitabine

PEGPH20 with KEYTRUDA® 
(pembrolizumab)

PEGPH20 with HALAVEN®  
(eribulin)

PEGPH20 with TECENTRIQ®  
(atezolizumab)

PEGPH20 with TECENTRIQ®  
(atezolizumab)

PEGPH20 with TECENTRIQ®  
(atezolizumab)

PEG-ADA2: PEGylated-Human 
Adenosine Deaminase 2

Oncology

Pancreas Cancer

Phase 3

Oncology

Oncology

Oncology

Oncology

Oncology

Gastric Cancer/Non-
Small Cell Lung Cancer

Breast Cancer 
(Eisai)

Pancreas Cancer 
(Genentech)

Gastric Cancer 
(Genentech)

Gall Bladder Cancer/ 
Cholangiocarcinoma

Phase 1

Phase 1*

Phase 1

Phase 1

Phase 1

Oncology

Various

Preclinical

*No further clinical development planned on the Phase 2 portion of this study.

Proprietary 
Approved Product

HYLENEX®  recombinant 
(hyaluronidase human injection)

Various

Adjuvant for subcutaneous 
fluid delivery for dispersion 
& absorption of other 
injected drugs 

U.S. Approved

ENHANZE® 
Collaboration 
Approved Products

Roche

HERCEPTIN®  SC (trastuzumab) 

Oncology

Breast Cancer 

MABTHERA®  SC (rituximab) 
(Outside of the U.S.)

RITUXAN HYCELA®   
(rituximab/hyaluronidase human) 
(U.S.)

Baxalta

Oncology

Oncology

Multiple blood 
Cancers

Multiple blood 
Cancers

HYQVIA®  [Immune Globulin Infusion  
10% (Human) with Recombinant  
Human Hyaluronidase] 

Immunology

Primary 
Immunodeficiency

ENHANZE® 
Collaboration  
Product Candidates

Roche  (Total of 9 potential targets)
PERJETA®  (pertuzumab) 

Oncology

Breast Cancer

Amyloidosis 
Smoldering Myeloma 
Multiple Myeloma (2L+) 
Multiple Myeloma (4L) 
Multiple Myeloma (1L+)
Multiple Myeloma (3L+)

Undisclosed

Pfizer   (Total of 6 potential targets)

Janssen   (Total of 5 potential targets)
DARZALEX® (daratumumab)

Oncology

AbbVie   (Total of 9 potential targets)

Lilly   (Total of 5 potential targets)

Undisclosed

Bristol-Myers Squibb    
(Total of 11 potential targets)
PD-1 target

Oncology

Alexion   (Total of 4 potential targets)
ALXN1210 SC

Various

All trademarks belong to their respective owners.

EU approved and other 
countries outside U.S.

EU approved and other 
countries outside U.S.

U.S. approved

Approved for adults in 
the EU, U.S., Puerto Rico 
and Australia; Pediatric 
indication approved in EU

Phase 1 
(Plans for Phase 3 fixed-
dose combination with 
Herceptin in 2018)
Phase 1

Phase 3 
Phase 3 
Phase 3 
Phase 3 
Phase 2 
Phase 1

Phase 1

Preclinical

Preclinical

 
 
 
 
 
 
 
 
 
CEO’S LETTER

CORPORATE INFORMATION

CORPORATE INFORMATION

ABOUT HALOZYME, INC.

ABOUT HALOZYME, INC.

Dear Fellow 
Dear Fellow 
Shareholders —
Shareholders —

25%

25%

Royalty revenue increase 

Royalty revenue increase 

over the previous year. 

over the previous year. 

$469M

$469M

Cash position exiting 2017

Cash position exiting 2017

The past 30 years 
of my career have 
been dedicated to the 
development, launch 
and commercialization 
of many leading 
therapeutics. Through 
that pursuit, I have 
had the privilege to 
lead or serve on many 
great teams, relished 
many challenges and 
believed deeply in the 
power of therapeutics 
to transform the lives 
of patients. 

I begin my annual letter with that backdrop because for me, 
2017 was among the greatest in my career for the long-term 
value our team created for patients, shareholders and each other. 

This past year was truly transformational for Halozyme. Through 
a disciplined focus at all levels of the organization, we executed 
well against the two-pillar strategy I first outlined for you in 
2014. Under this strategy – where we maximize the value of our 
proprietary recombinant human hyaluronidase, rHuPh20 – we 
established our ENHANZE® technology as an industry standard 
for converting intravenous medications to subcutaneous 
administration, and we took steps to derisk our late-stage 
investigational oncology drug, PEGPH20 (pegvorhyaluronidase 
alfa). We continue to believe this two-pillar approach affords 
shareholders the greatest opportunities for substantial value 
creation, and we offered a demonstration of its potential during 
the year.

Beginning with the ENHANZE technology pillar, we began 
2017 with confidence that our team would sign a new global 
collaboration and licensing agreement, and we exited the year 
with two new agreements plus an extension of an existing 
collaboration. These agreements – with Bristol-Myers Squibb, 
Alexion and Roche – punctuated a year with many highlights, 
including:

• Upfront payments from the three new agreements totaling 

$175 million, the largest amount in company history;

• Royalty growth of 25 percent from commercialized 

products using ENHANZE;

• A successful FDA oncology drug advisory committee that 
led to the U.S. approval and launch of Roche’s RITUXAN 
™
™ (rituximab/hyaluronidase human) in certain 
HYCELA™ (rituximab/hyaluronidase human) in certain 
blood cancer indications;

• Initiation of four Phase 3 clinical studies of Darzalex SC, 
a subcutaneous forumulation of Janssen’s Darzalex®
a subcutaneous forumulation of Janssen’s Darzalex®
a subcutaneous forumulation of Janssen’s Darzalex
(daratumumab) using ENHANZE. Analysts project Darzalex 
to achieve peak sales of $7 billion, which has the potential 
to create a sizable inflection in royalties to Halozyme.

Our newest collaborations include exciting targets, such as 
Bristol-Myers Squibb’s selection of the PD-1 target to create their 
first subcutaneous version using ENHANZE, and Alexion’s 
selection of the complement c5-inhibitor target for a next-

generation ALXN 1210. In fact, we project royalty potential of 

generation ALXN 1210. In fact, we project royalty potential of 

  pancreatic and gastric cancer. In addition, we dosed the  

  pancreatic and gastric cancer. In addition, we dosed the  

approximately $1 billion in 2027 from multiple indication 

approximately $1 billion in 2027 from multiple indication 

  first patients in a study to evaluate the combination in  

  first patients in a study to evaluate the combination in  

approvals and global launches of our currently commercialized 

approvals and global launches of our currently commercialized 

  cholangiocarcinoma and gall bladder cancer patients;

  cholangiocarcinoma and gall bladder cancer patients;

products using ENHANZE and seven other targets in clinical 

products using ENHANZE and seven other targets in clinical 

development or planned for clinical development with 

development or planned for clinical development with 

ENHANZE. Actual royalties will depend on indications 

ENHANZE. Actual royalties will depend on indications 

approved, geographies launched and market share attained.

approved, geographies launched and market share attained.

•  Advancing our exploration of PEGPH20’s pan-tumor potential,  

•  Advancing our exploration of PEGPH20’s pan-tumor potential,  

  with the possibility of reporting response-rate data from two  

  with the possibility of reporting response-rate data from two  

  Phase 1 studies in the second half of 2018. 

  Phase 1 studies in the second half of 2018. 

With the progress we made in 2017, it is easy to see why we 

With the progress we made in 2017, it is easy to see why we 

PEGPH20 is a targeted therapy, with a companion diagnostic 

PEGPH20 is a targeted therapy, with a companion diagnostic 

are so optimistic about the road ahead and the long-term value 

are so optimistic about the road ahead and the long-term value 

to select patients most likely to respond to it. The combination 

to select patients most likely to respond to it. The combination 

created for shareholders by the ENHANZE technology. 

created for shareholders by the ENHANZE technology. 

of a deep body of preclinical evidence, the encouraging 

of a deep body of preclinical evidence, the encouraging 

Turning to our oncology pillar, which is anchored by PEGPH20, 

Turning to our oncology pillar, which is anchored by PEGPH20, 

2017 began with a major derisking event as we reported 

2017 began with a major derisking event as we reported 

encouraging data from our randomized, controlled HALO-202 

encouraging data from our randomized, controlled HALO-202 

Phase 2 study in approximately 270 patients. These results 

Phase 2 study in approximately 270 patients. These results 

garnered excellent attention through oral presentations at 

garnered excellent attention through oral presentations at 

major medical fora during the year and supported strong 

major medical fora during the year and supported strong 

HALO-202 data and the diagnostic support a good potential for 

HALO-202 data and the diagnostic support a good potential for 

PEGPH20 to make a meaningful difference in the lives of 

PEGPH20 to make a meaningful difference in the lives of 

patients with devastating and difficult to treat HA-High 

patients with devastating and difficult to treat HA-High 

pancreas cancer. This is what motivates me and our team, and 

pancreas cancer. This is what motivates me and our team, and 

what we believe will ultimately provide the greatest returns to 

what we believe will ultimately provide the greatest returns to 

our shareholders. 

our shareholders. 

progress in enrollment in our HALO-301 Phase 3 study in 

progress in enrollment in our HALO-301 Phase 3 study in 

We look forward to achieving the target number of 

We look forward to achieving the target number of 

metastatic pancreatic cancer patients with the same 

metastatic pancreatic cancer patients with the same 

progression-free survival events in our Phase 3 study late in 

progression-free survival events in our Phase 3 study late in 

chemotherapy combination of PEGPH20 plus ABRAXANE® 

chemotherapy combination of PEGPH20 plus ABRAXANE® 

the fourth quarter of 2018, at which time we expect to have 

the fourth quarter of 2018, at which time we expect to have 

(nab-paclitaxel) and gemcitabine. HALO-202 showed a 

(nab-paclitaxel) and gemcitabine. HALO-202 showed a 

approximately 500 patients enrolled. 

approximately 500 patients enrolled. 

statistically significant progression-free survival improvement 

statistically significant progression-free survival improvement 

in patients retrospectively identified to have high levels of 

in patients retrospectively identified to have high levels of 

hyaluronan (HA), and data from the study were recently 

hyaluronan (HA), and data from the study were recently 

published in the peer reviewed Journal of Clinical Oncology.  

published in the peer reviewed Journal of Clinical Oncology.  

In HALO-301, we are prospectively selecting patients with the 

In HALO-301, we are prospectively selecting patients with the 

HA-High biomarker. PEGPH20 temporarily degrades HA, a 

HA-High biomarker. PEGPH20 temporarily degrades HA, a 

glycosaminoglycan or a chain of natural sugars in the body that 

glycosaminoglycan or a chain of natural sugars in the body that 

can accumulate around certain tumor types and impede 

can accumulate around certain tumor types and impede 

access of cancer therapies to the tumor.

access of cancer therapies to the tumor.

In addition to the progress with HALO-301, we achieved a 

In addition to the progress with HALO-301, we achieved a 

number of value-enhancing goals and milestones in the 

number of value-enhancing goals and milestones in the 

PEGPH20 program, including:

PEGPH20 program, including:

The milestones we achieved in 2017 have also put us in the 

The milestones we achieved in 2017 have also put us in the 

strongest financial position in company history. Revenue for 

strongest financial position in company history. Revenue for 

the year was $317 million, and we exited the year very 

the year was $317 million, and we exited the year very 

well-financed with $469 million in cash. 

well-financed with $469 million in cash. 

I want to thank you for your continued investment, support, 

I want to thank you for your continued investment, support, 

encouragement, questions and thoughtful input. During 2017, 

encouragement, questions and thoughtful input. During 2017, 

we saw the benefits of our strategy taking hold. I also want to 

we saw the benefits of our strategy taking hold. I also want to 

thank patients who participate in our clinical studies. Without 

thank patients who participate in our clinical studies. Without 

their courage, our work would not be possible. Finally, we 

their courage, our work would not be possible. Finally, we 

would not be where we are today as a company without the 

would not be where we are today as a company without the 

dedication of our entire Halozyme team. I am deeply grateful 

dedication of our entire Halozyme team. I am deeply grateful 

for their commitment and look forward to the progress we will 

for their commitment and look forward to the progress we will 

•  Expanding our Phase 1b study of PEGPH20 in combination  

•  Expanding our Phase 1b study of PEGPH20 in combination  

continue to make in 2018. 

continue to make in 2018. 

  with KEYTRUDA® (pembrolizumab) in lung and gastric  

  with KEYTRUDA® (pembrolizumab) in lung and gastric  

  cancer patients;

  cancer patients;

Best regards,

Best regards,

•  Dosing the first patients in three clinical studies under an  

•  Dosing the first patients in three clinical studies under an  

  agreement with Genentech, a member of the Roche  

  agreement with Genentech, a member of the Roche  

  Group, formed in 2016 to evaluate PEGPH20 and  

  Group, formed in 2016 to evaluate PEGPH20 and  

  TECENTRIQ® (atezolizumab) in up to eight different  

  TECENTRIQ® (atezolizumab) in up to eight different  

tumor types. This is an efficient way for Halozyme to  

tumor types. This is an efficient way for Halozyme to  

  expand the study of PEGPH20, with Roche funding and  

  expand the study of PEGPH20, with Roche funding and  

  conducting studies in up to six tumor types, beginning with  

  conducting studies in up to six tumor types, beginning with  

Corporate Headquarters

Corporate Headquarters

11388 Sorrento Valley Road

11388 Sorrento Valley Road

San Diego, CA 92121

San Diego, CA 92121

858-794-8889

858-794-8889

info@halozyme.com

info@halozyme.com

www.halozyme.com

www.halozyme.com

Outside Legal Counsel

Outside Legal Counsel

DLA Piper LLP (U.S.)

DLA Piper LLP (U.S.)

San Diego, California

San Diego, California

Independent Auditors

Independent Auditors

Ernst & Young LLP

Ernst & Young LLP

San Diego, California

San Diego, California

Transfer Agent

Transfer Agent

Corporate Stock Transfer, Inc. 

Corporate Stock Transfer, Inc. 

3200 Cherry Creek Drive South,  

3200 Cherry Creek Drive South,  

Suite 430  

Suite 430  

Denver, CO 80209

Denver, CO 80209

303-282-4800

303-282-4800

Form 10-K Annual Report

Form 10-K Annual Report

Each Stockholder may receive

Each Stockholder may receive

without charge a copy of the

without charge a copy of the

Annual Report on form 10-K filed

Annual Report on form 10-K filed

with the Securities and Exchange

with the Securities and Exchange

Commission by written request

Commission by written request

addressed to Investor Relations. 

addressed to Investor Relations. 

Stock Listing

Stock Listing

Halozyme Therapeutics, Inc. 

Halozyme Therapeutics, Inc. 

common stock trades on the 

common stock trades on the 

Nasdaq Stock Market under the 

Nasdaq Stock Market under the 

symbol HALO.

symbol HALO.

Halozyme Therapeutics is a biotechnology company focused on developing and commercializing 

Halozyme Therapeutics is a biotechnology company focused on developing and commercializing 

novel oncology therapies that target the tumor microenvironment. Halozyme’s lead proprietary 

novel oncology therapies that target the tumor microenvironment. Halozyme’s lead proprietary 

program, investigational drug PEGPH20, applies a unique approach to targeting solid tumors, 

program, investigational drug PEGPH20, applies a unique approach to targeting solid tumors, 

allowing increased access of co-administered cancer drug therapies to the tumor in animal 

allowing increased access of co-administered cancer drug therapies to the tumor in animal 

models. PEGPH20 is currently in development for metastatic pancreatic cancer, non-small cell 

models. PEGPH20 is currently in development for metastatic pancreatic cancer, non-small cell 

lung cancer, gastric cancer, metastatic breast cancer and has potential across additional cancers in 

lung cancer, gastric cancer, metastatic breast cancer and has potential across additional cancers in 

combination with different types of cancer therapies. In addition to its proprietary product portfolio, 

combination with different types of cancer therapies. In addition to its proprietary product portfolio, 

Halozyme has established value-driving partnerships with leading pharmaceutical companies 

Halozyme has established value-driving partnerships with leading pharmaceutical companies 

including Roche, Shire/Baxalta, Pfizer, Janssen, Abbvie, Lilly, Bristol-Myers Squibb and Alexion for 

including Roche, Shire/Baxalta, Pfizer, Janssen, Abbvie, Lilly, Bristol-Myers Squibb and Alexion for 

its ENHANZE® drug delivery technology. Halozyme is headquartered in San Diego, California.  

its ENHANZE® drug delivery technology. Halozyme is headquartered in San Diego, California.  

For more information visit www.halozyme.com.

For more information visit www.halozyme.com.

Jean-Pierre Bizzari, M.D.  

Jean-Pierre Bizzari, M.D.  

Helen Torley, M.B. Ch.B., M.R.C.P 

Helen Torley, M.B. Ch.B., M.R.C.P 

Former Executive Vice President and Global 

Former Executive Vice President and Global 

President and Chief Executive Officer

President and Chief Executive Officer

Head of Oncology, Celgene Corporation

Head of Oncology, Celgene Corporation

James M. Daly  

James M. Daly  

Former Executive Vice President and Chief 

Former Executive Vice President and Chief 

Chief Medical Officer

Chief Medical Officer

Commercial Officer, Incyte Corporation 

Commercial Officer, Incyte Corporation 

Dimitrios Chondros 

Dimitrios Chondros 

Senior Vice President and  

Senior Vice President and  

Advisory Director to Berkshire Partners LLC; 

Advisory Director to Berkshire Partners LLC; 

Program Lead, CMC Operations 

Program Lead, CMC Operations 

Jeffrey W. Henderson  

Jeffrey W. Henderson  

Former Chief Financial Officer,  

Former Chief Financial Officer,  

Cardinal Health, Inc.

Cardinal Health, Inc.

Kenneth J. Kelley 

Kenneth J. Kelley 

Trustee, Sabin Vaccine Institute

Trustee, Sabin Vaccine Institute

Randal J. Kirk 

Randal J. Kirk 

Chairman and Chief Executive Officer, 

Chairman and Chief Executive Officer, 

Intrexon Corporation; Senior Managing 

Intrexon Corporation; Senior Managing 

Director and Chief Executive Officer, Third 

Director and Chief Executive Officer, Third 

Security, LLC

Security, LLC

Connie L. Matsui 

Connie L. Matsui 

Chairman of the Board, Halozyme 

Chairman of the Board, Halozyme 

Therapeutics; Former Executive Vice 

Therapeutics; Former Executive Vice 

President, Knowledge and Innovation 

President, Knowledge and Innovation 

Networks, Biogen Idec

Networks, Biogen Idec

William J. Fallon 

William J. Fallon 

Senior Vice President, Global ENHANZE 

Senior Vice President, Global ENHANZE 

& Strategic Alliances

& Strategic Alliances

Michael J. LaBarre, Ph.D. 

Michael J. LaBarre, Ph.D. 

Vice President and Chief Scientific Officer

Vice President and Chief Scientific Officer

Harry J. Leonhardt, Esq. 

Harry J. Leonhardt, Esq. 

Senior Vice President, General Counsel, 

Senior Vice President, General Counsel, 

Chief Compliance Officer and  

Chief Compliance Officer and  

Corporate Secretary

Corporate Secretary

Jim S. Mazzola 

Jim S. Mazzola 

Vice President, Corporate Communication 

Vice President, Corporate Communication 

and Investor Relations

and Investor Relations

Michael E. Paolucci 

Michael E. Paolucci 

Vice President and Chief Human  

Vice President and Chief Human  

Resources Officer

Resources Officer

Matthew L. Posard 

Matthew L. Posard 

President and Chief Commercial Officer, 

President and Chief Commercial Officer, 

GenePeeks, Inc.

GenePeeks, Inc.

Laurie D. Stelzer 

Laurie D. Stelzer 

Senior Vice President and Chief  

Senior Vice President and Chief  

Financial Officer

Financial Officer

Helen Torley, M.B. Ch.B., M.R.C.P. 

Helen Torley, M.B. Ch.B., M.R.C.P. 

President and Chief Executive Officer, 

President and Chief Executive Officer, 

Halozyme Therapeutics

Halozyme Therapeutics

Kristina Vlaovic 

Kristina Vlaovic 

Vice President, Regulatory and Safety

Vice President, Regulatory and Safety

Homa Yeganegi 

Homa Yeganegi 

Program Lead

Program Lead

Senior Vice President, Global PEGPH20 

Senior Vice President, Global PEGPH20 

SAFE HARBOR STATEMENT

SAFE HARBOR STATEMENT

This Annual Report contains forward-looking statements regarding our products in development, 

This Annual Report contains forward-looking statements regarding our products in development, 

anticipated clinical, regulatory and commercial milestones, business intentions, financial conditions 

anticipated clinical, regulatory and commercial milestones, business intentions, financial conditions 

and results of operations and prospects and other statements concerning future matters. Words 

and results of operations and prospects and other statements concerning future matters. Words 

such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and similar 

such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and similar 

expressions or variations of such words are intended to identify forward-looking statements, but 

expressions or variations of such words are intended to identify forward-looking statements, but 

are not the exclusive means of identifying forward-looking statements in the Annual Report. Actual 

are not the exclusive means of identifying forward-looking statements in the Annual Report. Actual 

results could differ materially from the expectations contained in forward-looking statements as a 

results could differ materially from the expectations contained in forward-looking statements as a 

result of several factors, including unexpected expenditures and costs, unexpected results or delays 

result of several factors, including unexpected expenditures and costs, unexpected results or delays 

in development and regulatory review, regulatory approval requirements, unexpected adverse 

in development and regulatory review, regulatory approval requirements, unexpected adverse 

events and competitive conditions. These and other factors that may result in differences are 

events and competitive conditions. These and other factors that may result in differences are 

discussed in greater detail in the Company’s reports on Forms 10-K, 10-Q, and other filings with the 

discussed in greater detail in the Company’s reports on Forms 10-K, 10-Q, and other filings with the 

Securities and Exchange Commission. 

Securities and Exchange Commission. 

GENERAL INFORMATION

GENERAL INFORMATION

BOARD OF DIRECTORS

BOARD OF DIRECTORS

EXECUTIVE TEAM

EXECUTIVE TEAM

 
 
 
 
 
 
Dear Fellow 

Shareholders —

Royalty revenue increase 
over the previous year. 

25%
$469M

Cash position exiting 2017

CORPORATE INFORMATION

ABOUT HALOZYME, INC.

This past year was truly 
transformational for Halozyme. 
Through a disciplined focus at 
all levels of the organization, 
we executed well against the 
two-pillar strategy.

GENERAL INFORMATION

BOARD OF DIRECTORS

EXECUTIVE TEAM

Corporate Headquarters

11388 Sorrento Valley Road

San Diego, CA 92121

858-794-8889

info@halozyme.com

www.halozyme.com

Outside Legal Counsel

DLA Piper LLP (U.S.)

San Diego, California

Independent Auditors

Ernst & Young LLP

San Diego, California

Transfer Agent

Corporate Stock Transfer, Inc. 

3200 Cherry Creek Drive South,  

Suite 430  

Denver, CO 80209

303-282-4800

Form 10-K Annual Report

Each Stockholder may receive

without charge a copy of the

Annual Report on form 10-K filed

with the Securities and Exchange

Commission by written request

addressed to Investor Relations. 

Stock Listing

Halozyme Therapeutics, Inc. 

common stock trades on the 

Nasdaq Stock Market under the 

symbol HALO.

generation ALXN 1210. In fact, we project royalty potential of 
approximately $1 billion in 2027 from multiple indication 
approvals and global launches of our currently commercialized 
products using ENHANZE and seven other targets in clinical 
development or planned for clinical development with 
ENHANZE. Actual royalties will depend on indications 
approved, geographies launched and market share attained.

With the progress we made in 2017, it is easy to see why we 
are so optimistic about the road ahead and the long-term value 
created for shareholders by the ENHANZE technology. 

Turning to our oncology pillar, which is anchored by PEGPH20, 
2017 began with a major derisking event as we reported 
encouraging data from our randomized, controlled HALO-202 
Phase 2 study in approximately 270 patients. These results 
garnered excellent attention through oral presentations at 
major medical fora during the year and supported strong 
progress in enrollment in our HALO-301 Phase 3 study in 
metastatic pancreatic cancer patients with the same 
chemotherapy combination of PEGPH20 plus ABRAXANE® 
(nab-paclitaxel) and gemcitabine. HALO-202 showed a 
statistically significant progression-free survival improvement 
in patients retrospectively identified to have high levels of 
hyaluronan (HA), and data from the study were recently 
published in the peer reviewed Journal of Clinical Oncology.  
In HALO-301, we are prospectively selecting patients with the 
HA-High biomarker. PEGPH20 temporarily degrades HA, a 
glycosaminoglycan or a chain of natural sugars in the body that 
can accumulate around certain tumor types and impede 
access of cancer therapies to the tumor.

In addition to the progress with HALO-301, we achieved a 
number of value-enhancing goals and milestones in the 
PEGPH20 program, including:

•  Expanding our Phase 1b study of PEGPH20 in combination  
  with KEYTRUDA® (pembrolizumab) in lung and gastric  
  cancer patients;

•  Dosing the first patients in three clinical studies under an  
  agreement with Genentech, a member of the Roche  
  Group, formed in 2016 to evaluate PEGPH20 and  
  TECENTRIQ® (atezolizumab) in up to eight different  

tumor types. This is an efficient way for Halozyme to  
  expand the study of PEGPH20, with Roche funding and  
  conducting studies in up to six tumor types, beginning with  

  pancreatic and gastric cancer. In addition, we dosed the  
  first patients in a study to evaluate the combination in  
  cholangiocarcinoma and gall bladder cancer patients;

•  Advancing our exploration of PEGPH20’s pan-tumor potential,  
  with the possibility of reporting response-rate data from two  
  Phase 1 studies in the second half of 2018. 

PEGPH20 is a targeted therapy, with a companion diagnostic 
to select patients most likely to respond to it. The combination 
of a deep body of preclinical evidence, the encouraging 
HALO-202 data and the diagnostic support a good potential for 
PEGPH20 to make a meaningful difference in the lives of 
patients with devastating and difficult to treat HA-High 
pancreas cancer. This is what motivates me and our team, and 
what we believe will ultimately provide the greatest returns to 
our shareholders. 

We look forward to achieving the target number of 
progression-free survival events in our Phase 3 study late in 
the fourth quarter of 2018, at which time we expect to have 
approximately 500 patients enrolled. 

The milestones we achieved in 2017 have also put us in the 
strongest financial position in company history. Revenue for 
the year was $317 million, and we exited the year very 
well-financed with $469 million in cash. 

I want to thank you for your continued investment, support, 
encouragement, questions and thoughtful input. During 2017, 
we saw the benefits of our strategy taking hold. I also want to 
thank patients who participate in our clinical studies. Without 
their courage, our work would not be possible. Finally, we 
would not be where we are today as a company without the 
dedication of our entire Halozyme team. I am deeply grateful 
for their commitment and look forward to the progress we will 
continue to make in 2018. 

Best regards,

HELEN TORLEY, M.B. Ch. B., M.R.C.P.

PRESIDENT AND CEO

Halozyme Therapeutics is a biotechnology company focused on developing and commercializing 

novel oncology therapies that target the tumor microenvironment. Halozyme’s lead proprietary 

program, investigational drug PEGPH20, applies a unique approach to targeting solid tumors, 

allowing increased access of co-administered cancer drug therapies to the tumor in animal 

models. PEGPH20 is currently in development for metastatic pancreatic cancer, non-small cell 

lung cancer, gastric cancer, metastatic breast cancer and has potential across additional cancers in 

combination with different types of cancer therapies. In addition to its proprietary product portfolio, 

Halozyme has established value-driving partnerships with leading pharmaceutical companies 

including Roche, Shire/Baxalta, Pfizer, Janssen, Abbvie, Lilly, Bristol-Myers Squibb and Alexion for 

its ENHANZE® drug delivery technology. Halozyme is headquartered in San Diego, California.  

For more information visit www.halozyme.com.

Jean-Pierre Bizzari, M.D.  

Helen Torley, M.B. Ch.B., M.R.C.P 

Former Executive Vice President and Global 

President and Chief Executive Officer

Head of Oncology, Celgene Corporation

James M. Daly  

Former Executive Vice President and Chief 

Chief Medical Officer

Commercial Officer, Incyte Corporation 

Dimitrios Chondros 

Senior Vice President and  

Advisory Director to Berkshire Partners LLC; 

Program Lead, CMC Operations 

Jeffrey W. Henderson  

Former Chief Financial Officer,  

Cardinal Health, Inc.

Kenneth J. Kelley 

Trustee, Sabin Vaccine Institute

Randal J. Kirk 

Chairman and Chief Executive Officer, 

Intrexon Corporation; Senior Managing 

Director and Chief Executive Officer, Third 

Security, LLC

Connie L. Matsui 

Chairman of the Board, Halozyme 

Therapeutics; Former Executive Vice 

President, Knowledge and Innovation 

Networks, Biogen Idec

William J. Fallon 

Senior Vice President, Global ENHANZE 

& Strategic Alliances

Michael J. LaBarre, Ph.D. 

Vice President and Chief Scientific Officer

Harry J. Leonhardt, Esq. 

Senior Vice President, General Counsel, 

Chief Compliance Officer and  

Corporate Secretary

Jim S. Mazzola 

Vice President, Corporate Communication 

and Investor Relations

Michael E. Paolucci 

Vice President and Chief Human  

Resources Officer

Matthew L. Posard 

President and Chief Commercial Officer, 

GenePeeks, Inc.

Laurie D. Stelzer 

Senior Vice President and Chief  

Financial Officer

Helen Torley, M.B. Ch.B., M.R.C.P. 

President and Chief Executive Officer, 

Halozyme Therapeutics

Kristina Vlaovic 

Vice President, Regulatory and Safety

Homa Yeganegi 

Program Lead

Senior Vice President, Global PEGPH20 

SAFE HARBOR STATEMENT

This Annual Report contains forward-looking statements regarding our products in development, 

anticipated clinical, regulatory and commercial milestones, business intentions, financial conditions 

and results of operations and prospects and other statements concerning future matters. Words 

such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and similar 

expressions or variations of such words are intended to identify forward-looking statements, but 

are not the exclusive means of identifying forward-looking statements in the Annual Report. Actual 

results could differ materially from the expectations contained in forward-looking statements as a 

result of several factors, including unexpected expenditures and costs, unexpected results or delays 

in development and regulatory review, regulatory approval requirements, unexpected adverse 

events and competitive conditions. These and other factors that may result in differences are 

discussed in greater detail in the Company’s reports on Forms 10-K, 10-Q, and other filings with the 

Securities and Exchange Commission. 

 
 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 
1934

For the fiscal year ended December 31, 2017 
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 001-32335
___________________________
HALOZYME THERAPEUTICS, INC.
(Exact name of registrant as specified in its charter)
___________________________

Delaware
(State or other jurisdiction of incorporation or organization)

88-0488686
(I.R.S. Employer Identification No.)

11388 Sorrento Valley Road, San Diego, CA
(Address of principal executive offices)

92121
(Zip Code)

(858) 794-8889
(Registrant’s telephone number, including area code)

Securities registered under Section 12(b) of the Act:

Title of Each Class
Common Stock, $0.001 Par Value

Name of Each Exchange on Which Registered
The NASDAQ Stock Market, LLC

Securities registered under 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.    
  No

  Yes        

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if 
any, every Interactive Data File required to be submitted and posted 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 and post 
such files).    

  Yes        

  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained 
herein,  and  will  not  be  contained,  to  the  best  of  registrant’s  knowledge,  in  definitive  proxy  or  information  statements 
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. 

 
 
 
 
 
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 
a smaller reporting company or emerging growth company. See the definitions of “large accelerated filer,” “accelerated 
filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer

Accelerated filer

   Non-accelerated filer

Smaller reporting
company

Emerging growth 
company

(Do not check if a smaller
reporting 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 13(a) of the 
Exchange Act. 

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 as 
of June 30, 2017 was approximately $1.3 billion based on the closing price on the NASDAQ Global Select Market reported 
for such date. Shares of common stock held by each officer and director and by each person who is known to own 10% or 
more of the outstanding common stock have been excluded in that such persons may be deemed to be affiliates of the 
registrant. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

The number of outstanding shares of the registrant’s common stock, par value $0.001 per share, was 143,076,590 as 

of February 13, 2018.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement to be filed subsequent to the date hereof with the Securities 
and  Exchange  Commission  pursuant  to  Regulation  14A  in  connection  with  the  registrant’s  2018 Annual  Meeting  of 
Stockholders are incorporated by reference into Part III of this Annual Report.

 
 
  
  
 
 
HALOZYME THERAPEUTICS, INC.

INDEX

PART I

Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

Item 5.

Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unresolved Staff Comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Legal Proceedings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mine Safety Disclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART II
Market For Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 
   Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . . . .
Quantitative and Qualitative Disclosures About Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure. . . . . . .
Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART III

Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder
   Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . . . . .
Principal Accounting Fees and Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 15.

Exhibits, Financial Statement Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 16. . . Form 10-K Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SIGNATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART IV

Page

1
16
31
31
31
31

32
34
35
47
47
47
48
50

50

51

51

52

52

52

55

56

 
 
 
[This page intentionally left blank] 

This Annual Report on Form 10-K contains “forward-looking statements” within the meaning of the “safe harbor” 
provisions of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 
1933, as amended.  All statements, other than statements of historical fact, included herein, including without limitation 
those regarding our future product development and regulatory events and goals, product collaborations, our business 
intentions  and  financial  estimates  and  anticipated  results,  are  forward-looking  statements.  Words  such  as  “expect,” 
“anticipate,” “intend,” “plan,” “believe,” “seek,” “estimate,” “think,” “may,” “could,” “will,” “would,” “should,” 
“continue,” “potential,” “likely,” “opportunity” and similar expressions or variations of such words are intended to identify 
forward-looking statements, but are not the exclusive means of identifying forward-looking statements in this Annual Report. 
Additionally,  statements  concerning  future  matters  such  as  the  development  or  regulatory  approval  of  new  products, 
enhancements of existing products or technologies, third party performance under key collaboration agreements, revenue 
and expense levels and other statements regarding matters that are not historical are forward-looking statements.

Although forward-looking statements in this Annual Report reflect the good faith judgment of our management, such 
statements can only be based on facts and factors currently known by us. Consequently, forward-looking statements are 
inherently subject to risks and uncertainties and actual results and outcomes may differ materially from the results and 
outcomes discussed in or anticipated by the forward-looking statements. Factors that could cause or contribute to such 
differences in results and outcomes include without limitation those discussed under the heading “Risk Factors” in Part I, 
Item 1A below, as well as those discussed elsewhere in this Annual Report. Readers are urged not to place undue reliance 
on these forward-looking statements, which speak only as of the date of this Annual Report. We undertake no obligation to 
revise or update any forward-looking statements in order to reflect any event or circumstance that may arise after the date 
of this Annual Report. Readers are urged to carefully review and consider the various disclosures made in this Annual 
Report, which attempt to advise interested parties of the risks and factors that may affect our business, financial condition, 
results of operations and prospects.

References to “Halozyme,” “the Company,” “we,” “us,” and “our” refer to Halozyme Therapeutics, Inc. and its 
wholly  owned  subsidiary,  Halozyme,  Inc.,  and  Halozyme,  Inc.’s  wholly  owned  subsidiaries,  Halozyme  Holdings  Ltd., 
Halozyme Royalty LLC, Halozyme Switzerland GmbH and Halozyme Switzerland Holdings GmbH. References to “Notes” 
refer to the Notes to Consolidated Financial Statements included herein (refer to Part II, Item 8).

Item 1.  Business

Overview

PART I

Halozyme Therapeutics, Inc. is a biotechnology company focused on developing and commercializing novel oncology 
therapies. We are seeking to translate our unique knowledge of the tumor microenvironment to create therapies that have 
the potential to improve cancer patient survival. Our research primarily focuses on human enzymes that alter the extracellular 
matrix and tumor microenvironment. The extracellular matrix is a complex matrix of proteins and carbohydrates surrounding 
the  cell  that  provides  structural  support  in  tissues  and  orchestrates  many  important  biological  activities,  including  cell 
migration, signaling and survival. Over many years, we have developed unique technology and scientific expertise enabling 
us to pursue this target-rich environment for the development of therapies.

Our proprietary enzymes are used to facilitate the delivery of injected drugs and fluids, potentially enhancing the 
efficacy and the convenience of other drugs or can be used to alter tissue structures for potential clinical benefit. We exploit 
our technology and expertise using a two pillar strategy that we believe enables us to manage risk and cost by: (1) developing 
our own proprietary products in therapeutic areas with significant unmet medical needs, with a focus on oncology, and (2) 
licensing our technology to biopharmaceutical companies to collaboratively develop products that combine our technology 
with the collaborators’ proprietary compounds.

1

The majority of our approved product and product candidates are based on rHuPH20, our patented recombinant human 
hyaluronidase enzyme. rHuPH20 is the active ingredient in our first commercially approved product, Hylenex® recombinant, 
and it works by temporarily breaking down hyaluronan (or HA), a naturally occurring complex carbohydrate that is a major 
component of the extracellular matrix in tissues throughout the body such as skin and cartilage. We believe this temporary 
degradation  creates  an  opportunistic  window  for  the  improved  subcutaneous  delivery  of  injectable  biologics,  such  as 
monoclonal antibodies and other large therapeutic molecules, as well as small molecules and fluids. We refer to the application 
of rHuPH20 to facilitate the delivery of other drugs or fluids as our ENHANZE® Technology. We license the ENHANZE 
Technology to form collaborations with biopharmaceutical companies that develop or market drugs requiring or benefiting 
from injection via the subcutaneous route of administration.

We currently have ENHANZE collaborations with F. Hoffmann-La Roche, Ltd. and Hoffmann-La Roche, Inc. (Roche), 
Baxalta US Inc. and Baxalta GmbH (Baxalta Incorporated was acquired by Shire plc in June 2016) (Baxalta), Pfizer Inc. 
(Pfizer), Janssen Biotech, Inc. (Janssen), AbbVie, Inc. (AbbVie), Eli Lilly and Company (Lilly), Bristol-Myers Squibb 
Company (BMS) and Alexion Pharma Holding (Alexion). We receive royalties from two of these collaborations, including 
royalties from sales of one product from the Baxalta collaboration and two products from the Roche collaboration. Future 
potential  revenues  from  the  sales  and/or  royalties  of  our  approved  products,  product  candidates,  and  ENHANZE 
collaborations will depend on the ability of Halozyme and our collaborators to develop, manufacture, secure and maintain 
regulatory approvals for approved products and product candidates and commercialize product candidates.

Our  proprietary  development  pipeline  consists  primarily  of  pre-clinical  and  clinical  stage  product  candidates  in 
oncology.  Our  lead  oncology  program  is  pegvorhyaluronidase  alfa  (PEGPH20,  PEGylated  recombinant  human 
hyaluronidase), a molecular entity we are developing in combination with currently approved cancer therapies as a candidate 
for the systemic treatment of tumors that accumulate HA. We have demonstrated that when HA accumulates in a tumor, it 
can cause higher pressure in the tumor, reducing blood flow into the tumor and with that, reduced access of cancer therapies 
to the tumor. PEGPH20 has been demonstrated in animal models to work by temporarily degrading HA surrounding cancer 
cells resulting in reduced pressure and increased blood flow to the tumor thereby enabling increased amounts of anticancer 
treatments administered concomitantly gaining access to the tumor. Through our efforts and efforts of our partners and 
collaborators,  we  are  currently  in  Phase  3  clinical  testing  for  PEGPH20  with  ABRAXANE®  (nab-paclitaxel)  and 
gemcitabine  in  stage  IV  pancreatic  ductal  adenocarcinoma  (“PDA”)  (HALO  109-301),  in  Phase  1b  clinical  testing  for 
PEGPH20 with KEYTRUDA® (pembrolizumab) in non-small cell lung cancer and gastric cancer (HALO 107-101), in 
Phase 1b/2 clinical testing for PEGPH20 with HALAVEN® (eribulin) in patients treated with up to two lines of prior therapy 
for HER2-negative metastatic breast cancer, in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq® (atezolizumab) 
in patients with previously treated metastatic PDA, in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq in patients 
with gastric cancer and in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq in patients with cholangiocarcinoma and 
gall bladder cancer (HALO 110-101/MATRIX).

Our principal offices and research facilities are located at 11388 Sorrento Valley Road, San Diego, California 92121. 
Our  telephone  number  is  (858) 794-8889  and  our  e-mail  address  is  info@halozyme.com.  Our  website  address  is 
www.halozyme.com. Information found on, or accessible through, our website is not a part of, and is not incorporated into, 
this Annual Report on Form 10-K. Our periodic and current reports that we filed with the SEC are available on our website 
at www.halozyme.com, free of charge, as soon as reasonably practicable after we have electronically filed such material 
with, or furnished them to, the SEC, including our annual reports on Form 10-K, quarterly reports on Form 10-Q, current 
reports on Form 8-K and any amendments to those reports. Further copies of these reports are located at the SEC’s Public 
Reference Room at 100 F Street, N.W., Washington, D.C. 20549, and online at http://www.sec.gov.

Technology

rHuPH20 can be applied as a drug delivery platform to increase dispersion and absorption of other injected drugs and 
fluids that are injected under the skin or in the muscle thereby potentially enhancing efficacy or convenience. For example, 
rHuPH20 has been used to convert drugs that must be delivered intravenously into subcutaneous injections or to reduce the 
number of subcutaneous injections needed for effective therapy. When ENHANZE Technology is applied subcutaneously, 
the rHuPH20 acts locally and has a tissue half-life of less than 15 minutes. HA at the local site reconstitutes its normal 
density within a few days and, therefore, we anticipate that any effect of rHuPH20 on the architecture of the subcutaneous 
space is temporary. 

2

Additionally, we are expanding our scientific work to develop other enzymes and agents that target the extracellular 
matrix’s  unique  aspects,  giving  rise  to  potentially  new  molecular  entities  with  a  particular  focus  on  oncology. We  are 
developing a PEGylated version of the rHuPH20 enzyme (PEGPH20), that lasts for an extended period in the bloodstream 
(half-life of one to two days), and may therefore better target solid tumors that accumulate HA by degrading the surrounding 
HA and reducing the interstitial fluid pressure within malignant tumors to allow better penetration by co-administered 
agents. 

Strategy

During  2017,  we  continued  our  strategy  of  focusing  on  developing  our  oncology  pipeline  and  expanding  our 
collaborations for ENHANZE Technology. This business model allows for revenue garnered from collaboration products 
to help fund our investment in PEGPH20 clinical development, with the goal of a future product approval that will support 
sustained growth.

Key aspects of our corporate strategy include the following:

• 

• 

Focus on our oncology pipeline. We are currently developing PEGPH20, our investigational new drug 
candidate,  in  multiple  different  tumors  that  accumulate  high  levels  of  HA.  PEGPH20  is  in  Phase  3 
development in stage IV PDA and multiple Phase 1b/2 studies for various tumor types. Over time, it is 
our goal to study additional types of cancer and to advance this program toward regulatory approval and 
commercial launch. In addition, we have a novel oncology preclinical asset. 

Focus on our ENHANZE platform. We currently have eight collaborations with three current product 
approvals  and  additional  product  candidates  in  development.  We  intend  to  work  with  our  existing 
collaborators to expand our collaborations to add new targets and develop targets and product candidates 
under the terms of the operative agreements. In addition, we will continue our efforts to enter into new 
collaborations to further derive additional value from our proprietary technology.

3

Product and Product Candidates

We have one marketed proprietary product, three partnered products, one proprietary product candidate targeting 
several indications in various stages of development, and one preclinical product candidate. The following table summarizes 
our proprietary product and product candidate as well as products and product candidates under development with our 
collaborators:

4

Proprietary Pipeline

Hylenex Recombinant (hyaluronidase human injection)

Hylenex  recombinant  is  a  formulation  of  rHuPH20  that  has  received  U.S.  Food  and  Drug Administration  (FDA) 
approval to facilitate subcutaneous fluid administration for achieving hydration, to increase the dispersion and absorption 
of other injected drugs and, in subcutaneous urography, to improve resorption of radiopaque agents. Hylenex recombinant 
is currently the number one prescribed branded hyaluronidase. 

PEGPH20 

We are developing PEGPH20 in combination with currently approved cancer therapies as a candidate for the systemic 
treatment of tumors that accumulate HA. ‘PEG’ refers to the attachment of polyethylene glycol to rHuPH20, thereby creating 
PEGPH20. One of the novel properties of PEGPH20 is that it lasts for an extended duration in the bloodstream and, therefore, 
can be administered systemically to maintain its therapeutic effect to treat disease.

Cancer malignancies, including pancreatic, lung, breast, gastric, and biliary tract cancers can accumulate high levels 
of HA and therefore we believe that PEGPH20 has the potential to help patients with these types of cancer when used with 
certain currently approved cancer therapies. Among solid tumors, PDA has been reported to be associated with the highest 
frequency of HA accumulation. There are approximately 65,000 annual diagnoses of PDA in the United States and the 
European Union, and we estimate that 35-40% have high levels of HA. 

The pathologic accumulation of HA, along with other matrix components, creates a unique microenvironment for the 
growth of tumor cells compared to normal cells. We believe that degrading the HA component of the tumor microenvironment 
with PEGPH20 remodels the tumor microenvironment, resulting in tumor growth inhibition in animal models. Removal of 
HA from the tumor microenvironment results in expansion of previously constricted blood vessels allowing increased blood 
flow, potentially increasing the access of activated immune cells and factors in the blood into the tumor microenvironment. 
If PEGPH20 is administered in conjunction with other anti-cancer therapies, the increase in blood flow may allow anti-
cancer therapies to have greater access to the tumor, which may enhance the treatment effect of therapeutic modalities like 
chemotherapies, monoclonal antibodies and other agents.

5

We are developing PEGPH20 as a targeted therapy, for patients who have tumors with high levels of HA. We have a 
collaboration with Ventana Medical Systems Inc. (Ventana), a member of the Roche Group, to develop, and for Ventana to 
ultimately commercialize, a companion diagnostic assay for use with PEGPH20. The companion diagnostic assay is being 
used to identify high levels of HA in tumor biopsies, and may be the first diagnostic to target tumor-associated HA and 
possibly the first companion diagnostic assay in pancreatic cancer. 

Pancreatic cancer indications:

HALO 109-201:

In January 2015, we presented the final results from HALO 109-201, a multi-center, international open label dose 
escalation Phase 1b clinical study of PEGPH20 in combination with gemcitabine for the treatment of patients with stage 
IV PDA at the 2015 Gastrointestinal Cancers Symposium (also known as ASCO-GI meeting). This study enrolled 28 patients 
with previously untreated stage IV PDA. Patients were treated with one of three doses of PEGPH20 (1.0, 1.6 and 3.0 μg/
kg  twice  weekly  for  four  weeks,  then  weekly  thereafter)  in  combination  with  gemcitabine  1000  mg/m2  administered 
intravenously. In this study, the confirmed overall response rate (complete response + partial response confirmed on a second 
scan as assessed by an independent radiology review) was 29 percent (7 of 24 patients) for those treated at therapeutic dose 
levels of PEGPH20 (1.6 and 3.0 μg/kg). Median progression-free survival (PFS) was 154 days (95% CI, 50-166) in the 
efficacy-evaluable population (n = 24). Among efficacy-evaluable patients with baseline tumor HA staining (n = 17), the 
median PFS in patients with high baseline tumor HA staining (6/17 patients) was substantially longer, 219 days, than in the 
patients with low baseline tumor HA staining (11/17 patients), 108 days. Median overall survival (OS) was 200 days (95% 
CI, 123-370) in the efficacy-evaluable population (n = 24). Among efficacy-evaluable patients with baseline tumor HA 
staining (n = 17), the median OS in patients with high baseline tumor HA staining (6/17 patients) was substantially longer, 
395 days, than in the patients with low baseline tumor HA staining (11/17 patients), 174 days. The most common treatment-
emergent adverse events (occurring in   15% of patients) were peripheral edema, muscle spasms, thrombocytopenia, fatigue, 
myalgia, anemia, and nausea. Thromboembolic (TE) events were reported in 8 patients (28.6%) and musculoskeletal events 
were reported in 21 patients (75%) which were generally grade 1/2 in severity.

HALO 109-202:

In the second quarter of 2013, we initiated HALO 109-202 (HALO-202), a Phase 2 multicenter randomized clinical 
trial evaluating PEGPH20 as a first-line therapy for patients with stage IV PDA. The study was designed to enroll patients 
who would receive gemcitabine and nab-paclitaxel (ABRAXANE®) either with or without PEGPH20. The primary endpoint 
is to measure the improvement in PFS in patients receiving PEGPH20 plus gemcitabine and ABRAXANE (PAG arm) 
compared to those who are receiving gemcitabine and ABRAXANE alone (AG arm). In April 2014, after 146 patients had 
been enrolled, the trial was put on clinical hold by Halozyme and the FDA to assess a question raised by the Data Monitoring 
Committee regarding a possible difference in the TE events rate between the group of patients treated in the PAG arm versus 
the group of patients treated in the AG arm. This portion of the study and patients in this portion are now referred to as 
Stage 1. At the time of the clinical hold all patients remaining in the study continued on gemcitabine and ABRAXANE. In 
July 2014, HALO-202 was reinitiated (Stage 2) under a revised protocol, which excludes patients that are expected to be 
at a greater risk for TE events. The revised protocol provides for thromboembolism prophylaxis of all patients in both arms 
of the study with low molecular weight heparin, and adds evaluation of the TE events rate in Stage 2 PEGPH20-treated 
patients as a co-primary end point. Stage 2 of HALO-202 enrolled an additional 133 patients, to add to the 146 patients 
already in the clinical trial, with a 2:1 randomization for the PAG arm compared to the AG arm. 

In March 2016, our partner Ventana received approval for an investigational device exemption (IDE) application from 
the FDA for our companion diagnostic test to enable patient selection in our Phase 3 Study HALO-301 of PEGPH20 in 
HA-High patients. Based on the cutpoint for the Ventana diagnostic, we expect approximately 35 to 40 percent of stage IV 
PDA patients to have HA-High tumors, similar to the previously reported interim results from Stage 1 of Study HALO-202 
using the Halozyme prototype assay.

6

In January 2017, we announced topline results from the combined analysis of Stage 1 and Stage 2, and Stage 2 alone, 
based on a December 2016 data cutoff. The combined analysis included 135 treated patients in Stage 1, of whom a total of 
45 patients (24 in the PAG arm and 21 in the AG arm) were determined to have high HA, and 125 treated patients in Stage 
2, of whom a total of 35 patients (24 in the PAG arm and 11 in the AG arm) were determined to have high HA. This analysis 
of secondary and exploratory endpoints was conducted using the Ventana companion diagnostic to prospectively identify 
high levels of HA. The key results showed in the combined Stage 1 and Stage 2 dataset:

•  The primary endpoint of PFS in the efficacy evaluable population (total of 231 patients) was met with statistical 
significance with a median PFS of 6.0 months in the PAG arm compared to 5.3 months in the AG arm, hazard ratio 
(HR) with a 95% confidence interval (CI):  0.73 (0.53, 1.00); p=0.048;

•  The secondary endpoint of PFS in the HA-High intent to treat population (total of 84 HA-High patients) was met 
with statistical significance with a median PFS of 9.2 months in the PAG arm compared to 5.2 months in the AG 
arm, HR 0.51 (95% CI:  0.26, 1.00); p=0.048;

•  The exploratory analysis of median OS was 11.5 months vs. 8.5 months in the PAG vs. AG arms, respectively. 
Factors potentially having an impact on these results include less aggressive disease among patients in the AG arm 
within  the  Stage  1  patient  population,  and  9  of  the  24  patients  in  the  PAG  arm  (approximately  40  percent) 
discontinued PEGPH20 treatment at the time of the clinical hold, resulting in many patients receiving AG alone 
in both arms.

In the Stage 2 cohort population, in a total of 35 HA-High patients, the key results showed:

•  Median PFS was 8.6 months in the PAG arm compared to 4.5 months in the AG arm, hazard ratio of 0.63 (95% 

CI:  0.21, 1.93);

•  Median overall survival (OS) was 11.7 months in the PAG arm compared to 7.8 months in the AG arm, hazard 

ratio of 0.52 (95% CI:  0.22, 1.23);

•  The primary safety endpoint of decreasing the rate of TE events in Stage 2 was also met with the rate of TE events 
reducing from 43 percent to 10 percent in the PAG arm and from 25 percent to 6 percent in the AG arm, following 
a protocol amendment that excluded patients at high risk of TE events and with the introduction of prophylaxis 
with low molecular weight heparin (enoxaparin) in Stage 2 of the study with the current 1mg/kg/day dose of 
enoxaparin prophylaxis given in both treatment arms of the study.

In June 2017, results from Study HALO-202 were presented at the ESMO World Congress of Gastrointestinal Cancer 
and the Annual Meeting of the American Society of Clinical Oncology (ASCO). HALO-202 is an ongoing study with an 
open  database,  and  has  completed  enrollment.  We  continue  to  collect  and  receive  data  on  both  Stage  1  and  Stage  2 
patients. When the database is considered complete and locked, an updated analysis and Final Study Report will be generated.

HALO 109-301:

In March 2015, we met with the FDA to discuss both the interim efficacy and safety data from HALO-202, which 
included the potential risk profile including TE event rate. Based on the feedback from that meeting, we proceeded with 
HALO 109-301 (HALO-301), a Phase 3 clinical study of PEGPH20 in patients with stage IV PDA, using a design allowing 
for potential marketing application based on PFS (accelerated approval pathway) or OS. The study will enroll patients whose 
tumors accumulate high levels of HA measured using the Ventana companion diagnostic test. The FDA provided feedback 
on the current companion diagnostic approach and confirmed that an approved IDE is required for the Phase 3 study.

The use of PFS as the basis for marketing approval will be subject to the overall benefit and risk associated with 

PEGPH20 combined with gemcitabine and ABRAXANE therapy, including the:

•  Magnitude of the PFS treatment effect observed;
•  Toxicity profile; and 
Interim OS data.
• 

In June 2015, we received scientific advice/protocol assistance from the European Medicines Agency (EMA) regarding 
our Phase 3 study. The EMA agreed to the patient population, and the use of both PFS and OS as co-primary endpoints 
stating that OS is the preferred endpoint and that ultimate approval would require an overall positive benefit:risk balance.

7

In March 2016, we dosed the first patient in HALO-301, a Phase 3 multicenter randomized clinical trial evaluating 
PEGPH20 as a first-line therapy for patients with stage IV PDA. The study will evaluate the effects on PFS and OS of 
PEGPH20 with gemcitabine and ABRAXANE compared with gemcitabine and ABRAXANE alone in stage IV PDA patients. 
In September 2017, our independent Data Safety Monitoring Committee met to review ongoing safety data from the trial 
and informed us the study should proceed as planned. Approximately 235 sites in 22 countries located in North America, 
Europe, South America and Asia have been initiated to participate in the HALO-301 study. An interim analysis will be 
conducted for our first primary endpoint when we achieve the target number of PFS events. We project that the target number 
of PFS events will be achieved in the fourth quarter of 2018. At that time we project we will have enrolled approximately 
500 patients. 

SWOG Study S1313:

In October 2013, SWOG, a cancer research cooperative group of more than 4,000 researchers in over 500 institutions 
around the world, initiated a 144 patient Phase 1b/2 randomized clinical trial in some of their study centers, examining 
PEGPH20 in combination with modified FOLFIRINOX chemotherapy compared to modified FOLFIRINOX treatment 
alone in patients with stage IV PDA (funded by the National Cancer Institute). As announced in March 2017, SWOG stopped 
enrollment in the Phase 1b/2 trial. While PEGPH20 is a targeted investigational therapy for patients with high levels of HA, 
the SWOG study was enrolling patients irrespective of HA levels, referred to as an all-comer population. During a planned 
early futility analysis, SWOG’s independent Data Monitoring Committee found, based on preliminary data, that the addition 
of  PEGPH20  given  every  two  weeks  to  modified  FOLFIRINOX  in  this  all-comer  population  would  be  unlikely  to 
demonstrate a statistically significant improvement in the primary endpoint of overall survival. SWOG further reported that 
a higher rate of death was observed in the PEGPH20 arm versus modified FOLFIRINOX alone. SWOG has stopped the 
study and continues its ongoing effort to collect and clean outstanding data. In January 2018, SWOG presented final data 
of the all-comers population at the ASCO-GI conference. The median overall survival was 7.7 months for the PEGPH20 
arm vs. 14.4 months in the modified FOLFIRINOX alone arm. Also, increased GI-toxicities and substantially shorter median 
treatment duration for modified FOLFIRINOX were reported for the PEGPH20 arm compared to the modified FOLFIRINOX 
alone arm. Collection of biopsy samples from participating sites, to the extent available,  is ongoing to potentially enable 
an HA biomarker subgroup analysis. Our PEGPH20 studies and clinical collaborations in combination with agents other 
than modified FOLFIRINOX continue unchanged.

Clinical collaboration:

In October 2016, we announced that PEGPH20 will be included in a pancreatic cancer clinical trial initiative called 
Precision Promise, an initiative that aims to change the current treatment approach to pancreatic cancer by offering options 
to patients based on the molecular profile of their tumor. This is being accomplished through the Pancreatic Cancer Action 
Network leading a collaboration that brings together clinicians, researchers, and drug developers. Pancreatic Cancer Action 
Network continues to work to finalize the trial design and protocol which is expected to include a potential PEGPH20 trial 
arm or trial in 2019.

Other indications outside of pancreatic cancer:

HALO 107-101: 

In November 2015, we initiated a Phase 1b study exploring the combination of PEGPH20 and KEYTRUDA®, an 
immuno-oncology agent in relapsed non-small cell lung cancer (NSCLC) and gastric cancer. In December 2016, we identified 
a dose of PEGPH20, namely 2.2 ug/kg, to move into the dose expansion phase of the study with KEYTRUDA in combination 
with PEGPH20. We are enrolling both NSCLC and gastric cancer patients prospectively based on a patient being determined 
to be HA-High using the Ventana companion diagnostic test. In September 2017, our standing Independent Data Monitoring 
Safety Committee met to review ongoing safety data from the trial and informed us that the study should proceed with study 
protocol modifications to exclude patients at risk and increase liver safety monitoring, after observing clinical and laboratory 
signs of hepato-biliary dysfunction.

8

Clinical collaborations:

In  July  2015,  we  entered  into  a  clinical  collaboration  agreement  with  Eisai  Co.,  Ltd.  (Eisai)  to  evaluate  Eisai's 
HALAVEN®  (eribulin) with PEGPH20 in HER2-negative metastatic breast cancer. In July 2016, the first patient was dosed 
in a Phase 1b/2 study for patients treated with up to two lines of prior therapy for HER2-negative metastatic breast cancer. 
In January 2018, the Phase 1b portion of the study closed enrollment. As a result of an Eisai portfolio decision, no further 
clinical development is planned on the Phase 2 portion of this study. Data analysis is ongoing and a submission of the results 
of this study to a scientific forum is expected in the second half of 2018. Halozyme and Eisai jointly share the costs to 
conduct this global study.

In November 2016, we entered into an agreement with Genentech, a member of the Roche Group, to collaborate on 
clinical studies to evaluate their cancer immunotherapy Tecentriq, an anti-PD-L1 monoclonal antibody, in combination with 
PEGPH20, in up to eight different tumor types. Genentech initiated a Phase 1b/2 clinical trial in patients with previously 
treated metastatic PDA in July 2017 and a Phase 1b/2 clinical trial in patients with gastric cancer in October 2017, as part 
of its Morpheus master protocol. We will supply PEGPH20 for the Genentech-funded studies. In October 2017, we initiated 
a Phase 1b/2 clinical trial to assess Tecentriq with PEGPH20 in patients with cholangiocarcinoma and gall bladder cancer 
(HALO 110-101/MATRIX). Genentech will supply Tecentriq for the Halozyme sponsored study. 

Regulatory

The FDA has granted Fast Track designation for our program investigating PEGPH20 in combination with gemcitabine 
and nab-paclitaxel for the treatment of patients with stage IV PDA to demonstrate an improvement in OS. The Fast Track 
designation process was developed by the FDA to facilitate the development and expedite the review of drugs to treat serious 
or life-threatening diseases and address unmet medical needs.

The FDA has granted Orphan Drug designation for PEGPH20 for the treatment of pancreatic cancer. The FDA Office 
of Orphan Products Development’s mission is to advance the evaluation and development of products (drugs, biologics, 
devices,  or  medical  foods)  that  demonstrate  promise  for  the  diagnosis  and/or  treatment  of  rare  diseases  or  conditions. 
Similarly, the European Committee for Orphan Medicinal Products of the EMA designated PEGPH20 an orphan medicinal 
product for the treatment of pancreatic cancer.

Other Pipeline Assets 

HTI-1511: HTI-1511 is a novel antibody-drug conjugate (ADC) targeting epidermal growth factor receptor (EGFR) 
to treat solid tumors, including those with drug-resistant mutations. At this time, we have discontinued further development 
of this program. 

PEG-ADA2:  PEGylated  adenosine  deaminase  2,  or  PEG-ADA2,  is  an  immune  checkpoint  inhibitor  that  targets 
adenosine, which may accumulate to high levels in the tumor microenvironment and has been linked to immunosuppression. 
We  are  currently  in  preclinical  development  with  PEG-ADA2  and  are  exploring  potential  collaboration  or  partnership 
interest in this program prior to making additional investments in the development of PEG-ADA2. 

ENHANZE Collaborations

Roche Collaboration

In December 2006, we and Roche entered into a collaboration and license agreement under which Roche obtained a 
worldwide  license  to  develop  and  commercialize  product  combinations  of  rHuPH20  and  up  to  thirteen  Roche  target 
compounds (the Roche Collaboration). Roche initially had the exclusive right to apply rHuPH20 to three pre-defined Roche 
biologic targets with the option to develop and commercialize rHuPH20 with ten additional targets. Roche had the right to 
exercise this option to identify additional targets for ten years. As of the ten year anniversary of the Roche Collaboration 
in December 2016, Roche had elected a total of eight targets, two of which are exclusive. 

9

In September 2013, Roche launched a subcutaneous (SC) formulation of Herceptin (trastuzumab) (Herceptin SC) in 
Europe for the treatment of patients with HER2-positive breast cancer. This formulation utilizes our patented ENHANZE 
Technology and is administered in two to five minutes, compared to 30 to 90 minutes with the standard intravenous form. 
Roche received European marketing approval for Herceptin SC in August 2013. Breast cancer is the most common cancer 
among women worldwide. HER2-positive cancer is reported to be a particularly aggressive form of breast cancer. Directed 
at the same target, Roche initiated a Phase 1 study of rHuPH20 with PERJETA® (pertuzumab) in patients with early breast 
cancer in March 2016. 

In June 2014, Roche launched MabThera SC in Europe for the treatment of patients with common forms of non-
Hodgkin  lymphoma  (NHL).  This  formulation  utilizes  our  patented  ENHANZE  Technology  and  is  administered  in 
approximately five minutes compared to the approximately 1.5 to 4 hour infusion time for intravenous MabThera. The 
European Commission approved MabThera SC in March 2014. In May 2016, Roche announced that the EMA approved 
Mabthera SC to treat patients with chronic lymphocytic leukemia (CLL). In June 2017, the FDA approved Genentech’s (a 
member of the Roche Group) RITUXAN HYCELA™, a combination of rituximab and rHuPH20 (approved and marketed 
under the MabThera SC brand in countries outside the U.S.), for CLL and two types of NHL, follicular lymphoma and 
diffuse large B-cell lymphoma. 

In September 2017, we and Roche entered into an agreement providing Roche the right to develop and commercialize 
one additional exclusive target using our ENHANZE Technology (the 2017 Roche Collaboration). The upfront license 
payment may be followed by event-based payments subject to Roche’s achievement of specified development, regulatory 
and sales-based milestones. In addition, Roche will pay royalties to us if products under the collaboration are commercialized.

In January 2018, Roche initiated a Phase 1 study of an undisclosed target with ENHANZE Technology. 

Baxalta Collaboration

In September 2007, we and Baxalta entered into a collaboration and license agreement under which Baxalta obtained 
a worldwide, exclusive license to develop and commercialize product combinations of rHuPH20 with GAMMAGARD 
LIQUID (HYQVIA) (the Baxalta Collaboration). HYQVIA is indicated for the treatment of primary immunodeficiency 
disorders associated with defects in the immune system.

In May 2013, the European Commission granted Baxalta marketing authorization in all EU Member States for the 
use of HYQVIA (solution for subcutaneous use) as replacement therapy for adult patients with primary and secondary 
immunodeficiencies.  Baxalta  launched  HYQVIA  in  the  first  EU  country  in  July  2013  and  has  continued  to  launch  in 
additional countries.

In September 2014, HYQVIA was approved by the FDA for treatment of adult patients with primary immunodeficiency 
in the U.S. HYQVIA is the first subcutaneous immune globulin (IG) treatment approved for adult primary immunodeficiency 
patients with a dosing regimen requiring only one infusion up to once per month (every three to four weeks) and one injection 
site per infusion in most patients, to deliver a full therapeutic dose of IG. Prior to the approval of HYQVIA, the majority 
of primary immunodeficiency patients received intravenous infusions in a doctor’s office or infusion center, and other 
subcutaneous IG treatments require weekly or bi-weekly treatment with multiple infusion sites per treatment. The FDA’s 
approval of HYQVIA was a significant milestone for us as it represented the first U.S. approved BLA which utilizes our 
rHuPH20 platform. 

In May 2016, Baxalta announced that HYQVIA received a marketing authorization from the European Commission 
for a pediatric indication, which is being launched in Europe to treat primary and certain secondary immunodeficiencies. 

Pfizer Collaboration

In December 2012, we and Pfizer entered into a collaboration and license agreement, under which Pfizer has the 
worldwide license to develop and commercialize products combining our rHuPH20 enzyme with Pfizer proprietary biologics 
directed to up to six targets in primary care and specialty care indications. Targets may be selected on an exclusive or non-
exclusive basis. Pfizer has elected five targets on an exclusive basis and returned two targets. 

10

Janssen Collaboration

In December 2014, we and Janssen entered into a collaboration and license agreement, under which Janssen has the 
worldwide  license  to  develop  and  commercialize  products  combining  our  rHuPH20  enzyme  with  Janssen  proprietary 
biologics directed to up to five targets. Targets may be selected on an exclusive basis. Janssen has elected CD38 as the first 
target on an exclusive basis. In November 2015, Janssen initiated dosing in a Phase 1b clinical trial evaluating subcutaneous 
delivery of DARZALEX (daratumumab), directed at CD38, using ENHANZE Technology, in multiple myeloma patients. 
In December 2016, Janssen announced results of the trial, which supported continued development of daratumumab with 
rHuPH20.  In  December  2017,  Janssen  announced  data  which  demonstrated  that  subcutaneous  administration  of 
DARZALEX  and  rHuPH20  was  well-tolerated,  with  rates  of  infusion  reactions  lower  than  those  observed  with  IV 
administration of DARZALEX. Janssen has initiated four Phase 3 studies and one Phase 1 study of daratumumab combined 
with the ENHANZE Technology in patients with Amyloidosis, Smoldering Myeloma and Multiple Myeloma. A Phase 2 
study of daratumumab combined with the ENHANZE Technology is planned in 2018 for patients with multiple myeloma. 

AbbVie Collaboration

In June 2015, we and AbbVie entered into a collaboration and license agreement, under which AbbVie has the worldwide 
license to develop and commercialize products combining our rHuPH20 enzyme with AbbVie proprietary biologics directed 
to up to nine targets. Targets may be selected on an exclusive basis. AbbVie elected one target on an exclusive basis, TNF 
alpha, for which it has discontinued development and returned the target.

Lilly Collaboration

In December 2015, we and Lilly entered into a collaboration and license agreement, under which Lilly has the worldwide 
license to develop and commercialize products combining our rHuPH20 enzyme with Lilly proprietary biologics directed 
to up to five targets. Targets may be selected on an exclusive basis. Lilly has elected two targets on an exclusive basis and 
one target on a semi-exclusive basis. In August 2017, Lilly initiated a Phase 1 study of an investigational new therapy in 
combination with rHuPH20.

BMS Collaboration

In  September  2017,  we  and  BMS  entered  into  a  collaboration  and  license  agreement,  which  became  effective  in 
November  2017,  under  which  BMS  has  the  worldwide  license  to  develop  and  commercialize  products  combining  our 
rHuPH20 enzyme with BMS immuno-oncology targets directed at up to eleven targets. Targets may be selected on an 
exclusive  basis,  with  the  exception  of one co-exclusive  target.  BMS  has  designated  multiple  immuno-oncology  targets 
including programmed death 1 (PD-1) and has an option to select additional targets within five years from the effective 
date.

Alexion Collaboration 

In December 2017, we and Alexion entered into a collaboration and license agreement, under which Alexion has the 
worldwide license to develop and commercialize products combining our rHuPH20 enzyme with Alexion’s portfolio of 
products directed at up to four targets. Targets may be selected on an exclusive basis. Alexion elected two targets on an 
exclusive basis, including a C5 complement inhibitor and has an option to select two additional targets within five years 
from the effective date. Alexion plans to initiate a Phase 1 trial in 2018 to study a next-generation subcutaneous formulation 
of ALXN1210 (ALXN1210 SC) with ENHANZE.

For a further discussion of the material terms of our collaboration agreements, refer to Note 4, Collaborative Agreements 

to our consolidated financial statements.

11

Customers

The following table indicates the percentage of total revenues in excess of 10% with any single customer:

Roche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alexion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baxalta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lilly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AbbVie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2017

2016

2015

38%

32%

13%

7%

—

—

63%

—

—

12%

6%

4%

42%

—

—

7%

19%

17%

For additional information regarding our revenues from customers, refer to Note 2, Summary of Significant Accounting 
Policies  —  Concentrations  of  Credit  Risk,  Sources  of  Supply  and  Significant  Customers,  to  our  consolidated  financial 
statements.

Patents and Proprietary Rights

Patents and other proprietary rights are essential to our business. Our success will depend in part on our ability to 
obtain patent protection for our inventions, to preserve our trade secrets and to operate without infringing the proprietary 
rights of third parties. Our strategy is to actively pursue patent protection in the U.S. and certain foreign jurisdictions for 
technology that we believe to be proprietary to us and that offers us a potential competitive advantage. Our patent portfolio 
includes 33 issued patents in the U.S., more than 370 issued patents in Europe and other countries in the world and more 
than 170 pending patent applications. In general, patents have a term of 20 years from the application filing date or earlier 
claimed priority date. Our issued patents will expire between 2022 and 2032. We have multiple patents and patent applications 
throughout the world pertaining to our recombinant human hyaluronidase and methods of use and manufacture, including 
an issued U.S. patent which expires in 2027 and an issued European patent which expires in 2024, which we believe cover 
the  products  and  product  candidates  under  our  existing  collaborations,  Hylenex  recombinant,  PEGPH20  and  our 
endocrinology product candidates. In addition, we have, under prosecution throughout the world, multiple patent applications 
that relate specifically to individual product candidates under development, the expiration of which can only be definitely 
determined upon maturation into our issued patents. We believe our patent filings represent a barrier to entry for potential 
competitors looking to utilize these hyaluronidases.

In  addition  to  patents,  we  rely  on  unpatented  trade  secrets,  proprietary  know-how  and  continuing  technological 
innovation. We seek protection of these trade secrets, proprietary know-how and innovation, in part, through confidentiality 
and  proprietary  information  agreements.  Our  policy  is  to  require  our  employees,  directors,  consultants,  advisors, 
collaborators, outside scientific collaborators and sponsored researchers, other advisors and other individuals and entities 
to execute confidentiality agreements upon the start of employment, consulting or other contractual relationships with us. 
These agreements provide that all confidential information developed or made known to the individual or entity during the 
course of the relationship is to be kept confidential and not disclosed to third parties except in specific circumstances. In 
the case of employees and some other parties, the agreements provide that all inventions conceived by the individual will 
be our exclusive property. Despite the use of these agreements and our efforts to protect our intellectual property, there will 
always be a risk of unauthorized use or disclosure of information. Furthermore, our trade secrets may otherwise become 
known to, or be independently developed by, our competitors.

We also file trademark applications to protect the names of our products and product candidates. These applications 
may not mature to registration and may be challenged by third parties. We are pursuing trademark protection in a number 
of different countries around the world. There can be no assurances that our registered or unregistered trademarks or trade 
names will not infringe on rights of third parties or will be acceptable to regulatory agencies.

12

Research and Development Activities

Our research and development expenses consist primarily of costs associated with the development and manufacturing 
of our product candidates, compensation and other expenses for research and development personnel, supplies and materials, 
costs for consultants and related contract research, clinical trials, facility costs and amortization and depreciation. We charge 
all research and development expenses to operations as they are incurred. Our research and development activities are 
primarily focused on the development of our various product candidates.

Due to the uncertainty in obtaining the FDA and other regulatory approvals, our reliance on third parties and competitive 
pressures, we are unable to estimate with any certainty the additional costs we will incur in the continued development of 
our proprietary product candidates for commercialization. However, we expect our research and development expenses for 
PEGPH20 to increase as our program advances into additional tumors and later stages of clinical development.

Manufacturing

We do not have our own manufacturing facility for our product and product candidates, or the capability to package 

our products. We have engaged third parties to manufacture bulk rHuPH20, PEGPH20 and Hylenex recombinant.

We have existing supply agreements with contract manufacturing organizations Avid Bioservices, Inc. (Avid) and 
Catalent Indiana LLC (formerly Cook Pharmica LLC) (Catalent) to produce supplies of bulk rHuPH20. These manufacturers 
each produce bulk rHuPH20 under current Good Manufacturing Practices (cGMP) for clinical and commercial uses. Catalent 
currently produces bulk rHuPH20 for use in Hylenex recombinant, product candidates and collaboration product candidates. 
Avid currently produces bulk rHuPH20 for use in collaboration products. We rely on their ability to successfully manufacture 
these batches according to product specifications. In addition, we validated and qualified a new facility operated by Avid 
as a manufacturer of bulk rHuPH20 for use in the products and product candidates under the Roche Collaboration. It is 
important for our business for Catalent and Avid to (i) retain their status as cGMP-approved manufacturing facilities; (ii) 
successfully  scale  up  bulk  rHuPH20  production;  and/or  (iii) manufacture  the  bulk  rHuPH20  required  by  us  and  our 
collaborators for use in our proprietary and collaboration products and product candidates. In addition to supply obligations, 
Avid and Catalent will also provide support for data and information used in the chemistry, manufacturing and controls 
sections for FDA and other regulatory filings.

We have a commercial manufacturing and supply agreement with Patheon Manufacturing Services, LLC (Patheon) 
under which Patheon will provide the final fill and finishing steps in the production process of Hylenex recombinant. Under 
our commercial services agreement with Patheon, Patheon has agreed to fill and finish Hylenex recombinant product for 
us until December 31, 2019, subject to further extensions in accordance with the terms of the agreement. In addition, we 
scaled up our manufacturing of PEGPH20 with third party suppliers to support additional clinical trials, including the Phase 
3 trial, and ultimately, if approved, potential commercial supply.

Sales, Marketing and Distribution

Hylenex Recombinant

Our commercial activities currently focus on Hylenex recombinant. We have a team of sales specialists that provide 
hospital and surgery center customers with the information about Hylenex recombinant and information needed to obtain 
formulary approval for, and support utilization of, Hylenex recombinant. Our commercial activities also include marketing 
and related services and commercial support services such as commercial operations, managed markets and commercial 
analytics. We also employ third-party vendors, such as advertising agencies, market research firms and suppliers of marketing 
and other sales support related services to assist with our commercial activities.

We sell Hylenex recombinant in the U.S. to wholesale pharmaceutical distributors, who sell the product to hospitals 
and other end-user customers. We engage Integrated Commercialization Solutions (ICS), a division of AmerisourceBergen 
Specialty  Group,  a  subsidiary  of AmerisourceBergen,  to  act  as  our  exclusive  distributor  for  commercial  shipment  and 
distribution of Hylenex recombinant to our customers in the United States. In addition to distribution services, ICS provides 
us with other key services related to logistics, warehousing, returns and inventory management, contract administration and 
chargebacks processing and accounts receivable management. In addition, we utilize third parties to perform various other 
services for us relating to regulatory monitoring, including call center management, adverse event reporting, safety database 
management and other product maintenance services.

13

Competition

The pharmaceutical industry is characterized by rapidly advancing technologies, intense competition and a strong 
emphasis on proprietary therapeutics. We face competition from a number of sources, some of which may target the same 
indications  as  our  product  or  product  candidates,  including  large  pharmaceutical  companies,  smaller  pharmaceutical 
companies,  biotechnology  companies,  academic  institutions,  government  agencies  and  private  and  public  research 
institutions, many of which have greater financial resources, drug development experience, sales and marketing capabilities, 
including larger, well established sales forces, manufacturing capabilities, experience in obtaining regulatory approvals for 
product  candidates  and  other  resources  than  us.  We  face  competition  not  only  in  the  commercialization  of  Hylenex 
recombinant,  but  also  for  the  in-licensing  or  acquisition  of  additional  product  candidates,  and  the  out-licensing  of  our 
ENHANZE Technology. In addition, our collaborators face competition in the commercialization of the product candidates 
for which the collaborators seek marketing approval from the FDA or other regulatory authorities.

Hylenex Recombinant

Hylenex recombinant is currently the only FDA approved recombinant human hyaluronidase on the market. The 
competitors for Hylenex recombinant include, but are not limited to, Valeant Pharmaceuticals International, Inc.’s product, 
Vitrase®,  an  ovine  (ram)  hyaluronidase,  and Amphastar  Pharmaceuticals,  Inc.’s  product, Amphadase®,  a  bovine  (bull) 
hyaluronidase. In  addition,  some  commercial  pharmacies  compound  hyaluronidase  preparations  for  institutions  and 
physicians even though compounded preparations are not FDA approved products.

Government Regulations

The  FDA  and  comparable  regulatory  agencies  in  foreign  countries  regulate  the  manufacture  and  sale  of  the 
pharmaceutical products that we have developed or currently are developing. The FDA has established guidelines and safety 
standards that are applicable to the laboratory and preclinical evaluation and clinical investigation of therapeutic products 
and stringent regulations that govern the manufacture and sale of these products. The process of obtaining regulatory approval 
for a new therapeutic product usually requires a significant amount of time and substantial resources. The steps typically 
required before a product can be introduced for human use include:

• 

• 

animal pharmacology studies to obtain preliminary information on the safety and efficacy of a drug; or

laboratory and preclinical evaluation in vitro and in vivo including extensive toxicology studies.

The results of these laboratory and preclinical studies may be submitted to the FDA as part of an IND application. 
The sponsor of an IND application may commence human testing of the compound 30 days after submission of the IND, 
unless notified to the contrary by the FDA.

The clinical testing program for a new drug typically involves three phases:

• 

• 

• 

Phase 1 investigations are generally conducted in healthy subjects (in certain instances, Phase 1 studies that determine 
the maximum tolerated dose and initial safety of the product candidate are performed in patients with the disease);

Phase 2 studies are conducted in limited numbers of subjects with the disease or condition to be treated and are 
aimed at determining the most effective dose and schedule of administration, evaluating both safety and whether 
the product demonstrates therapeutic effectiveness against the disease; and

Phase 3 studies involve large, well-controlled investigations in diseased subjects and are aimed at verifying the 
safety and effectiveness of the drug.

14

Data from all clinical studies, as well as all laboratory and preclinical studies and evidence of product quality, are 
typically submitted to the FDA in a new drug application (NDA). The results of the preclinical and clinical testing of a 
biologic product candidate are submitted to the FDA in the form of a BLA, for evaluation to determine whether the product 
candidate may be approved for commercial sale. In responding to a BLA or NDA, the FDA may grant marketing approval 
or request additional information. If additional information is requested we may provide such information or withdraw our 
application. Although the FDA’s requirements for clinical trials are well established and we believe that we have planned 
and conducted our clinical trials in accordance with applicable regulations and guidelines, these requirements may be subject 
to change. Accordingly, we could be required to conduct additional trials beyond what we had planned due to the FDA’s 
safety and/or efficacy concerns or due to differing interpretations of the meaning of our clinical data or a change in the 
therapeutic landscape. (See Part I, Item 1A, Risk Factors.)

The FDA’s Center for Drug Evaluation and Research must approve an NDA and the FDA’s Center for Biologics 
Evaluation and Research must approve a BLA for a drug before it may be marketed in the United States. If we begin to 
market our proposed products for commercial sale in the U.S., any manufacturing operations that may be established in or 
outside the U.S. will also be subject to rigorous regulation, including compliance with cGMP. We also may be subject to 
regulation under the Occupational Safety and Health Act, the Environmental Protection Act, the Toxic Substance Control 
Act, the Export Control Act and other present and future laws of general application. In addition, the handling, care and use 
of laboratory animals are subject to the Guidelines for the Humane Use and Care of Laboratory Animals published by the 
National Institutes of Health.

Regulatory obligations continue post-approval, and include the reporting of adverse events when a drug is utilized in 
the broader patient population. Promotion and marketing of drugs is also strictly regulated, with penalties imposed for 
violations of FDA regulations, the Lanham Act and other federal and state laws, including the federal anti-kickback statute.

We currently intend to continue to seek, directly or through our collaborators, approval to market our products and 
product candidates in foreign countries, which may have regulatory processes that differ materially from those of the FDA. 
We anticipate that we will rely upon independent consultants to seek and gain approvals to market our proposed products 
in foreign countries or may rely on other pharmaceutical or biotechnology companies to license our proposed products. We 
cannot guarantee that approvals to market any of our proposed products can be obtained in any country. Approval to market 
a product in any one foreign country does not necessarily indicate that approval can be obtained in other countries.

From time to time, legislation is drafted and introduced in Congress that could significantly change the statutory 
provisions governing the approval, manufacturing and marketing of drug products. In addition, FDA regulations and guidance 
are often revised or reinterpreted by the agency or reviewing courts in ways that may significantly affect our business and 
development of our product candidates and any products that we may commercialize. It is impossible to predict whether 
additional legislative changes will be enacted, or FDA regulations, guidance or interpretations changed, or what the impact 
of any such changes may be.

Segment Information

We  operate  our  business  as  one  segment,  which  includes  all  activities  related  to  the  research,  development  and 
commercialization of human enzymes and other drug candidates. This segment also includes revenues and expenses related 
to (i) research and development activities conducted under our collaboration agreements with third parties and (ii) product 
sales of Hylenex recombinant. The chief operating decision-maker reviews the operating results on an aggregate basis and 
manages the operations as a single operating segment. Our long-lived assets located in foreign countries had minimal book 
value as of December 31, 2017 and 2016. 

Executive Officers of the Registrant

Information concerning our executive officers, including their names, ages and certain biographical information can 
be found in Part III, Item 10, Directors, Executive Officers and Corporate Governance. This information is incorporated 
by reference into Part I of this report.

Employees

As of February 13, 2018, we had 255 full-time employees. None of our employees are unionized and we believe our 

employee relations to be good.

15

Item 1A. 

Risk Factors

Risks Related To Our Business

We have generated only limited revenues from product sales to date; we have a history of net losses and negative cash 
flows, and we may never achieve or maintain profitability.

Relative to expenses incurred in our operations, we have generated only limited revenues from product sales, royalties, 
licensing fees, milestone payments, bulk rHuPH20 supply payments and research reimbursements to date and we may never 
generate sufficient revenues from future product sales, licensing fees and milestone payments to offset expenses. Even if 
we ultimately do achieve significant revenues from product sales, royalties, licensing fees, research reimbursements, bulk 
rHuPH20 supply payments and/or milestone payments, we expect to incur significant operating losses over the next few 
years and we may never become profitable on an extended basis. Through December 31, 2017, we have incurred aggregate 
net losses of $522.4 million.

If our product candidates do not receive and maintain regulatory approvals, or if approvals are not obtained in a timely 
manner, such failure or delay would substantially impair our ability to generate revenues.

Approval  from  the  FDA  or  equivalent  health  authorities  is  necessary  to  manufacture  and  market  pharmaceutical 
products in the U.S. and the other countries in which we anticipate doing business have similar requirements. The process 
for obtaining FDA and other regulatory approvals is extensive, time-consuming, risky and costly, and there is no guarantee 
that the FDA or other regulatory bodies will approve any applications that may be filed with respect to any of our product 
candidates, or that the timing of any such approval will be appropriate for the desired product launch schedule for a product 
candidate. We and our collaborators attempt to provide guidance as to the timing for the filing and acceptance of such 
regulatory approvals, but such filings and approvals may not occur when we or our collaborators expect, or at all. The FDA 
or other foreign regulatory agency may refuse or delay approval of our product candidates for failure to collect sufficient 
clinical or animal safety data and require us or our collaborators to conduct additional clinical or animal safety studies which 
may cause lengthy delays and increased costs to our programs. For example, the approval of Baxalta’s HYQVIA BLA in 
the U.S. was delayed until we and Baxalta provided additional preclinical data sufficient to address concerns regarding non-
neutralizing antibodies to rHuPH20 that were detected in the registration trial. Although these antibodies have not been 
associated with any known adverse clinical effects, and the HYQVIA BLA was approved by the FDA in September 2014, 
we cannot assure you that they will not arise and have an adverse impact on future development of products which include 
rHuPH20, future sales of Hylenex recombinant, our ability to enter into collaborations, or be raised by the FDA or other 
health authorities in connection with testing or approval of products including rHuPH20.

We and our collaborators may not be successful in obtaining approvals for any additional potential products in a timely 
manner,  or  at  all.  Refer  to  the  risk  factor  titled  “Our  proprietary  and  collaboration  product  candidates  or  companion 
diagnostic assays may not receive regulatory approvals or their development may be delayed for a variety of reasons, 
including delayed or unsuccessful clinical trials, regulatory requirements or safety concerns” for additional information 
relating to the approval of product candidates. 

Additionally, even with respect to products which have been approved for commercialization, in order to continue to 
manufacture and market pharmaceutical products, we or our collaborators must maintain our regulatory approvals. If we 
or any of our collaborators are unsuccessful in maintaining our regulatory approvals, our ability to generate revenues would 
be adversely affected.

We may need to raise additional capital in the future and there can be no assurance that we will be able to obtain such 
funds.

We may need to raise additional capital in the future to continue the development of our product candidates or for 
other current corporate purposes. Our current cash reserves and expected revenues during the next few years will not be 
sufficient for us to continue the development of our proprietary product candidates, to fund general operations and conduct 
our business at the level desired. In addition, if we engage in acquisitions of companies, products or technologies in order 
to execute our business strategy, we may need to raise additional capital. We may raise additional capital in the future through 
one or more financing vehicles that may be available to us including (i) the public offering of securities; (ii) new collaborative 
agreements; (iii) expansions or revisions to existing collaborative relationships; (iv) private financings; (v) other equity or 
debt financings; and/or (vi) monetizing assets.

16

In  view  of  our  stage  of  development,  business  prospects,  the  nature  of  our  capital  structure  and  general  market 
conditions, if we are required to raise additional capital in the future, the additional financing may not be available on 
favorable terms, or at all. If additional capital is not available on favorable terms when needed, we will be required to raise 
capital on adverse terms or significantly reduce operating expenses through the restructuring of our operations or deferral 
of one or more product development programs. If we raise additional capital, a substantial number of additional shares may 
be issued, which may negatively affect our stock price and these additional shares will dilute the ownership interest of our 
current investors.

Use of our product candidates or those of our collaborators could be associated with side effects or adverse events.

As with most pharmaceutical products, use of our product candidates or those of our collaborators could be associated 
with side effects or adverse events which can vary in severity (from minor reactions to death) and frequency (infrequent or 
prevalent). Side effects or adverse events associated with the use of our product candidates or those of our collaborators 
may be observed at any time, including in clinical trials or when a product is commercialized, and any such side effects or 
adverse events may negatively affect our or our collaborators’ ability to obtain or maintain regulatory approval or market 
our product candidates. Side effects such as toxicity or other safety issues associated with the use of our product candidates 
or those of our collaborators could require us or our collaborators to perform additional studies or halt development or 
commercialization of these product candidates or expose us to product liability lawsuits which will harm our business. We 
or our collaborators may be required by regulatory agencies to conduct additional animal or human studies regarding the 
safety and efficacy of our pharmaceutical product candidates which we have not planned or anticipated. Furthermore, there 
can be no assurance that we or our collaborators will resolve any issues related to any product related adverse events to the 
satisfaction of the FDA or any regulatory agency in a timely manner or ever, which could harm our business, prospects and 
financial condition. For example, in April 2014, a clinical hold was placed on patient enrollment and dosing of PEGPH20 
in Study HALO-202 as a result of a possible difference in the TE event rate that had been observed at that time in the trial 
between the group of patients treated with PEGPH20 versus the group of patients treated without PEGPH20. The clinical 
hold was lifted by the FDA in June 2014, and we have completed enrollment and continue to monitor ongoing patients who 
remain either on treatment or in follow-up on Study HALO-202 under a revised clinical protocol. 

If our contract manufacturers are unable to manufacture and supply to us bulk rHuPH20 or other raw materials in 
the quantity and quality required by us or our collaborators for use in our products and product candidates, our product 
development and commercialization efforts could be delayed or stopped and our collaborations could be damaged.

We have existing supply agreements with contract manufacturing organizations Avid Bioservices, Inc. (Avid) and 
Catalent  Indiana LLC (formerly Cook Pharmica LLC) (Catalent) to produce bulk rHuPH20. These manufacturers each 
produce  bulk  rHuPH20  under  cGMP  for  clinical  uses. Catalent  currently  produces  bulk  rHuPH20  for  use  in  Hylenex 
recombinant, product candidates and collaboration product candidates. Avid currently produces bulk rHuPH20 for use in 
collaboration products. In addition to supply obligations, Avid and Catalent will also provide support for the chemistry, 
manufacturing and controls sections for FDA and other regulatory filings. We rely on their ability to successfully manufacture 
these batches according to product specifications. If either Avid or Catalent: (i) is unable to retain its status as an FDA 
approved manufacturing facility; (ii) is unable to otherwise successfully scale up bulk rHuPH20 production to meet corporate 
or regulatory authority quality standards; or (iii) fails to manufacture and supply bulk rHuPH20 in the quantity and quality 
required by us or our collaborators for use in our proprietary and collaboration products and product candidates for any 
other reason, our business will be adversely affected. In addition, a significant change in such parties’ or other third party 
manufacturers’ business or financial condition could adversely affect their abilities to fulfill their contractual obligations to 
us. We  have  not  established,  and  may  not  be  able  to  establish,  favorable  arrangements  with  additional  bulk  rHuPH20 
manufacturers and suppliers of the ingredients necessary to manufacture bulk rHuPH20 should the existing manufacturers 
and suppliers become unavailable or in the event that our existing manufacturers and suppliers are unable to adequately 
perform  their  responsibilities. We  have  attempted  to  mitigate  the  impact  of  a  potential  supply  interruption  through  the 
establishment of excess bulk rHuPH20 inventory where possible, but there can be no assurances that this safety stock will 
be maintained or that it will be sufficient to address any delays, interruptions or other problems experienced by Avid and/
or Catalent. Any delays, interruptions or other problems regarding the ability of Avid and/or Catalent to supply bulk rHuPH20 
or the ability of other third party manufacturers, to supply other raw materials or ingredients necessary to produce our 
products on a timely basis could: (i) cause the delay of clinical trials or otherwise delay or prevent the regulatory approval 
of proprietary or collaboration product candidates; (ii) delay or prevent the effective commercialization of proprietary or 
collaboration products; and/or (iii) cause us to breach contractual obligations to deliver bulk rHuPH20 to our collaborators. 

17

Such delays would likely damage our relationship with our collaborators, and they would have a material adverse effect on 
royalties and thus our business and financial condition.

If we or any party to a key collaboration agreement fail to perform material obligations under such agreement, or if a 
key collaboration agreement, is terminated for any reason, our business could significantly suffer.

We have entered into multiple collaboration agreements under which we may receive significant future payments in 
the  form  of  milestone  payments,  target  designation  fees,  maintenance  fees  and  royalties.  We  are  dependent  on  our 
collaborators to develop and commercialize product candidates subject to our collaborations in order for us to realize any 
financial benefits from these collaborations. Our collaborators may not devote the attention and resources to such efforts 
that  we  would  ourselves,  change  their  clinical  development  plans,  promotional  efforts  or  simultaneously  develop  and 
commercialize products in competition to those products we have licensed to them. Any of these actions could not be visible 
to us immediately and could negatively impact the benefits and revenue we receive from such collaboration. In addition, 
in the event that a party fails to perform under a key collaboration agreement, or if a key collaboration agreement is terminated, 
the reduction in anticipated revenues could delay or suspend our product development activities for some of our product 
candidates, as well as our commercialization efforts for some or all of our products. Specifically, the termination of a key 
collaboration agreement by one of our collaborators could materially impact our ability to enter into additional collaboration 
agreements with new collaborators on favorable terms, if at all. In certain circumstances, the termination of a key collaboration 
agreement would require us to revise our corporate strategy going forward and reevaluate the applications and value of our 
technology.

Most of our current proprietary and collaboration products and product candidates rely on the rHuPH20 enzyme, and 
any adverse development regarding rHuPH20 could substantially impact multiple areas of our business, including 
current and potential collaborations, as well as proprietary programs.

rHuPH20  is  a  key  technological  component  of  ENHANZE  Technology  and  our  most  advanced  proprietary  and 
collaboration products and product candidates, including the current and future products and product candidates under our 
ENHANZE  collaborations, our PEGPH20 program, and Hylenex recombinant. If there is an adverse development for 
rHuPH20 (e.g., an adverse regulatory determination relating to rHuPH20, if we are unable to obtain sufficient quantities of 
rHuPH20,  if  we  are  unable  to  obtain  or  maintain  material  proprietary  rights  to  rHuPH20  or  if  we  discover  negative 
characteristics  of  rHuPH20),  multiple  areas  of  our  business,  including  current  and  potential  collaborations,  as  well  as 
proprietary programs would be substantially impacted. For example, elevated anti-rHuPH20 antibody titers were detected 
in the registration trial for Baxalta’s HYQVIA product as well as in a former collaborator’s product in a Phase 2 clinical 
trial with rHuPH20, but have not been associated, in either case, with any adverse events. We monitor for antibodies to 
rHuPH20 in our collaboration and proprietary programs, and although we do not believe at this time that the incidence of 
non-neutralizing anti-rHuPH20 antibodies in either the HYQVIA program or the former collaborator’s program will have 
a significant impact on our other proprietary and other collaboration product candidates, there can be no assurance that there 
will not be other such occurrences in the foregoing programs or our other programs or that concerns regarding these antibodies 
will not also be raised by the FDA or other health authorities in the future, which could result in delays or discontinuations 
of our development or commercialization activities or deter entry into additional collaborations with third parties. 

We routinely evaluate, and may modify, our business strategy and our strategic focus to only a few fields or applications 
of our technology which may increase the risk for potential negative impact from adverse developments.

We routinely evaluate our business strategy, and may modify this strategy in the future in light of our assessment of 
unmet medical needs, growth potential, resource requirements, regulatory issues, competition, risks and other factors. As 
a result of these strategic evaluations, we may focus our resources and efforts on one or a few programs or fields and may 
suspend or reduce our efforts on other programs and fields. For example, in the third quarter of 2014, we decided to focus 
our resources on advancing PEGPH20 and expanding utilization of our ENHANZE Technology. While we believe these 
are applications with the greatest potential value, we have reduced the diversification of our programs and increased our 
dependence on the success of the areas we are pursuing. By focusing on one or a few areas, we increase the potential impact 
on us if one of those programs or product candidates does not successfully complete clinical trials, achieve commercial 
acceptance or meet expectations regarding sales and revenue. Our decision to focus on one or a few programs may also 
reduce the value of programs that are no longer within our principal strategic focus, which could impair our ability to pursue 
collaborations or other strategic alternatives for those programs we are not pursuing.

18

Our proprietary and collaboration product candidates or companion diagnostic assays may not receive regulatory 
approvals or their development may be delayed for a variety of reasons, including delayed or unsuccessful clinical 
trials, regulatory requirements or safety concerns.

Clinical testing of pharmaceutical products is a long, expensive and uncertain process, and the failure or delay of a 
clinical trial can occur at any stage, including the patient enrollment stage. Even if initial results of preclinical and nonclinical 
studies or clinical trial results are promising, we or our collaborators may obtain different results in subsequent trials or 
studies that fail to show the desired levels of safety and efficacy, or we may not, or our collaborators may not, obtain 
applicable  regulatory  approval  for  a  variety  of  other  reasons.  Preclinical,  nonclinical,  and  clinical  trials  for  any  of  our 
proprietary or collaboration product candidates or development of any collaboration companion diagnostic assays could be 
unsuccessful,  which  would  delay  or  preclude  regulatory  approval  and  commercialization  of  the  product  candidates  or 
companion diagnostic assays. In the U.S. and other jurisdictions, regulatory approval can be delayed, limited or not granted 
for many reasons, including, among others:

• 

• 

• 

• 

• 

• 

• 
• 

• 

• 

• 

• 

• 

• 

• 

during the course of clinical studies, the final data may differ from initial reported data, and clinical results 
may not meet prescribed endpoints for the studies or otherwise provide sufficient data to support the efficacy 
of our product candidates;
clinical  and  nonclinical  test  results  may  reveal  side  effects,  adverse  events  or  unexpected  safety  issues 
associated with the use of our product candidates; for example, in April 2014, a clinical hold was placed on 
patient enrollment and dosing of PEGPH20 in Study HALO-202 as a result of a possible difference in the TE 
event rate that had been observed at that time in the trial between the group of patients treated with PEGPH20 
versus the group of patients treated without PEGPH20. The clinical hold was lifted by the FDA in June 2014, 
and we have completed enrollment and continue to monitor patients who remain either on treatment or in 
follow-up on Study HALO-202 under a revised clinical protocol;
completion of clinical trials may be delayed for a variety of reasons including the amount of time it may take 
to identify and enroll patients with high levels of HA in our target population, and the ability to procure drug 
supply required in clinical trial protocols;
clinical trial results may be negatively impacted if our companion diagnostic does not accurately identify 
patients most likely to respond to the therapy, including the level of HA in patients;
third parties, such as contract research organizations, upon whom we rely to help conduct and manage our 
clinical trials may not perform satisfactorily, fulfill their contractual obligations to us, meet expected deadlines 
or conduct our clinical trials in accordance with regulatory requirements or our stated protocols; 
regulatory review may not find a product candidate safe or effective enough to merit either continued testing 
or final approval;
regulatory review may not find that the data from preclinical testing and clinical trials justifies approval;
regulatory  authorities  may  require  that  we  change  our  studies  or  conduct  additional  studies  which  may 
significantly delay or make continued pursuit of approval commercially unattractive; 
a regulatory agency may reject our trial data or disagree with our interpretations of either clinical trial data or 
applicable regulations;
a regulatory agency may approve only a narrow use of our product or may require additional safety monitoring 
and reporting through Risk Evaluation and Mitigation Strategies or conditions to assure safe use programs;
the cost of clinical trials required for product approval may be greater than what we originally anticipate, and 
we may decide to not pursue regulatory approval for such a product;
a regulatory agency may not approve our manufacturing processes or facilities, or the processes or facilities 
of our collaborators, our contract manufacturers or our raw material suppliers;
a regulatory agency may identify problems or other deficiencies in our existing manufacturing processes or 
facilities, or the existing processes or facilities of our collaborators, our contract manufacturers or our raw 
material suppliers; 
a regulatory agency may change its formal or informal approval requirements and policies, act contrary to 
previous guidance, adopt new regulations or raise new issues or concerns late in the approval process; or
a product candidate may be approved only for indications that are narrow or under conditions that place the 
product at a competitive disadvantage, which may limit the sales and marketing activities for such product 
candidate or otherwise adversely impact the commercial potential of a product.

19

If a proprietary or collaboration product candidate or companion diagnostic assay is not approved in a timely fashion 
or obtained on commercially viable terms, or if development of any product candidate or a companion diagnostic assay is 
terminated due to difficulties or delays encountered in the regulatory approval process, it could have a material adverse 
impact on our business, and we would become more dependent on the development of other proprietary or collaboration 
product candidates and/or our ability to successfully acquire other products and technologies. There can be no assurances 
that any proprietary or collaboration product candidate or companion diagnostic assay will receive regulatory approval in 
a timely manner, or at all. There can be no assurance that we will be able to gain clarity as to the FDA’s requirements or 
that the requirements may be satisfied in a commercially feasible way, in which case our ability to enter into collaborations 
with third parties or explore other strategic alternatives to exploit this opportunity will be limited or may not be possible.

We anticipate that certain proprietary and collaboration products will be marketed, and perhaps manufactured, in 
foreign countries. The process of obtaining regulatory approvals in foreign countries is subject to delay and failure for the 
reasons set forth above, as well as for reasons that vary from jurisdiction to jurisdiction. The approval process varies among 
countries and jurisdictions and can involve additional testing. The time required to obtain approval may differ from that 
required to obtain FDA approval. Foreign regulatory agencies may not provide approvals on a timely basis, if at all. Approval 
by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one 
foreign regulatory authority does not ensure approval by regulatory authorities in other foreign countries or jurisdictions or 
by the FDA.

Our third party collaborators are responsible for providing certain proprietary materials that are essential components 
of  our  collaboration  products  and  product  candidates,  and  any  failure  to  supply  these  materials  could  delay  the 
development and commercialization efforts for these collaboration products and product candidates and/or damage 
our collaborations.

Our development and commercialization collaborators are responsible for providing certain proprietary materials that 
are  essential  components  of  our  collaboration  products  and  product  candidates.  For  example,  Roche  is  responsible  for 
producing the Herceptin and MabThera required for its subcutaneous products and Baxalta is responsible for producing the 
GAMMAGARD LIQUID for its product HYQVIA. If a collaborator, or any applicable third party service provider of a 
collaborator, encounters difficulties in the manufacture, storage, delivery, fill, finish or packaging of the collaboration product 
or product candidate or component of such product or product candidate, such difficulties could (i) cause the delay of clinical 
trials or otherwise delay or prevent the regulatory approval of collaboration product candidates; and/or (ii) delay or prevent 
the effective commercialization of collaboration products. Such delays could have a material adverse effect on our business 
and financial condition. 

We rely on third parties to manufacture, prepare, fill, finish and package our products and product candidates, and 
if  such  third  parties  should  fail  to  perform,  our  commercialization  and  development  efforts  for  our  products  and 
product candidates could be delayed or stopped.

We rely on third parties to manufacture, prepare, fill, finish, package, store and ship our products and product candidates 
on our behalf. If we are unable to locate third parties to perform these functions on terms that are acceptable to us, or if the 
third parties we identify fail to perform their obligations, the progress of clinical trials could be delayed or even suspended 
and the commercialization of approved product candidates could be delayed or prevented. In addition, we are scaling up 
our manufacturing of PEGPH20 with third party suppliers to support additional clinical trials, including the Phase 3 trial, 
and  ultimately,  if  approved,  potential  commercial  supply.  If  our  contract  manufacturers  are  unable  to  successfully 
manufacture and supply PEGPH20, the progress of our clinical trials could be delayed or halted for a period of time.

If we are unable to sufficiently develop our sales, marketing and distribution capabilities or enter into successful 
agreements with third parties to perform these functions, we will not be able to fully commercialize our products.

We may not be successful in marketing and promoting our approved product, Hylenex recombinant, or any other 
products we develop or acquire in the future. Our sales, marketing and distribution capabilities are very limited. In order 
to  commercialize  any  products  successfully,  we  must  internally  develop  substantial  sales,  marketing  and  distribution 
capabilities or establish collaborations or other arrangements with third parties to perform these services. We do not have 
extensive experience in these areas, and we may not be able to establish adequate in-house sales, marketing and distribution 
capabilities or engage and effectively manage relationships with third parties to perform any or all of such services. To the 
extent that we enter into co-promotion or other licensing arrangements, our product revenues are likely to be lower than if 
we directly marketed and sold our products, and any revenues we receive will depend upon the efforts of third parties, whose 

20

efforts may not meet our expectations or be successful. These third parties would be largely responsible for the speed and 
scope of sales and marketing efforts, and may not dedicate the resources necessary to maximize product opportunities. Our 
ability to cause these third parties to increase the speed and scope of their efforts may also be limited. In addition, sales and 
marketing efforts could be negatively impacted by the delay or failure to obtain additional supportive clinical trial data for 
our products. In some cases, third party collaborators are responsible for conducting these additional clinical trials, and our 
ability to increase the efforts and resources allocated to these trials may be limited.

If we or our collaborators fail to comply with regulatory requirements applicable to promotion, sale and manufacturing 
of approved products, regulatory agencies may take action against us or them, which could significantly harm our 
business.

Any approved products, along with the manufacturing processes, post-approval clinical data, labeling, advertising and 
promotional activities for these products, are subject to continual requirements and review by the FDA, state and foreign 
regulatory bodies. Regulatory authorities subject a marketed product, its manufacturer and the manufacturing facilities to 
continual review and periodic inspections. We, our collaborators and our respective contractors, suppliers and vendors, will 
be  subject  to  ongoing  regulatory  requirements,  including  complying  with  regulations  and  laws  regarding  advertising, 
promotion  and  sales  of  drug  products,  required  submissions  of  safety  and  other  post-market  information  and  reports, 
registration requirements, cGMP regulations (including requirements relating to quality control and quality assurance, as 
well as the corresponding maintenance of records and documentation), and the requirements regarding the distribution of 
samples to physicians and recordkeeping requirements. Regulatory agencies may change existing requirements or adopt 
new requirements or policies. We, our collaborators and our respective contractors, suppliers and vendors, may be slow to 
adapt or may not be able to adapt to these changes or new requirements.

In particular, regulatory requirements applicable to pharmaceutical products make the substitution of suppliers and 
manufacturers costly and time consuming. We have minimal internal manufacturing capabilities and are, and expect to be 
in the future, entirely dependent on contract manufacturers and suppliers for the manufacture of our products and for their 
active and other ingredients. The disqualification of these manufacturers and suppliers through their failure to comply with 
regulatory requirements could negatively impact our business because the delays and costs in obtaining and qualifying 
alternate suppliers (if such alternative suppliers are available, which we cannot assure) could delay clinical trials or otherwise 
inhibit our ability to bring approved products to market, which would have a material adverse effect on our business and 
financial condition. Likewise, if we, our collaborators and our respective contractors, suppliers and vendors involved in 
sales and promotion of our products do not comply with applicable laws and regulations, for example off-label or false or 
misleading promotion, this could materially harm our business and financial condition.

Failure to comply with regulatory requirements may result in any of the following:

restrictions on our products or manufacturing processes;

• 
•  warning letters;
•  withdrawal of the products from the market;
• 
• 
• 
• 
• 
• 
• 
• 
• 

voluntary or mandatory recall;
fines;
suspension or withdrawal of regulatory approvals;
suspension or termination of any of our ongoing clinical trials;
refusal to permit the import or export of our products;
refusal to approve pending applications or supplements to approved applications that we submit;
product seizure; 
injunctions; or
imposition of civil or criminal penalties. 

21

We currently have significant debt and failure by us to fulfill our obligations under the applicable loan agreements 
may cause the repayment obligations to accelerate.

In December 2015, our subsidiaries, Halozyme, Inc. (Halozyme) and Halozyme Royalty LLC (Halozyme Royalty) 
entered  into  a  credit  agreement  (the  Credit Agreement)  with  BioPharma  Credit  Investments  IV  Sub,  LP  and Athyrium 
Opportunities  II Acquisition  LP  (the  Royalty-backed  Lenders)  pursuant  to  which  we  borrowed  $150  million  through 
Halozyme  Royalty  (the  Royalty-backed  Loan).  The  Royalty-backed  Loan  will  be  repaid  primarily  from  a  specified 
percentage of the royalty payments we receive under our collaboration agreements with Roche and Baxalta (the Royalty 
Payments). 

The obligations of Halozyme Royalty under the Credit Agreement to repay the Royalty-backed Loan may be accelerated 

upon the occurrence of certain events of default under the Credit Agreement, including but not limited to:

• 

• 

• 

• 

• 

• 

if any payment of principal is not made within three days of when such payment is due and payable or 
otherwise made in accordance with the terms of the Credit Agreement;
if any representations or warranties made in the Credit Agreement or any other transaction document 
proves to be incorrect or misleading in any material respect when made;
if there occurs a default in the performance of affirmative and negative covenants set forth in the Credit 
Agreement or any other transaction document;
the failure by either Baxalta or Roche to pay material amounts owed under our collaboration agreements 
because of an actual breach or default by us under the collaboration agreements;
the voluntary or involuntary commencement of bankruptcy proceedings by either Halozyme or Halozyme 
Royalty and other insolvency related defaults;
any materially adverse effect on the binding nature of any of the transaction documents or the collaboration 
agreements with Baxalta and Roche; or

•  Halozyme ceases to own, of record and beneficially, 100% of the equity interests in Halozyme Royalty.

The  Credit Agreement  also  contains  covenants  applicable  to  Halozyme  and  Halozyme  Royalty,  including  certain 
visitation, information and audits rights granted to the collateral agent and the lenders and restrictions on the conduct of 
business, including continued compliance with the Baxalta and Roche collaboration agreements and specified affirmative 
actions regarding the escrow account established to facilitate payment of Royalty Payments to the Royalty-backed Lenders 
or other specified parties. The Credit Agreement also contains covenants solely applicable to Halozyme Royalty, including 
restrictions  on  incurring  indebtedness,  creating  or  granting  liens,  making  acquisitions  and  making  specified  restricted 
payments. These covenants could make it more difficult for us to execute our business strategy.

In connection with the Royalty-backed Loan, Halozyme Royalty granted a first priority lien and security interest 
(subject only to permitted liens) in all of its assets and all real, intangible and personal property, including all of its right, 
title and interest in and to the Royalty Payments. 

In June 2016, we entered into a Loan and Security Agreement (the Loan Agreement) with Oxford Finance LLC (Oxford) 
and Silicon Valley Bank (SVB) (collectively, the Lenders), providing a senior secured loan facility of up to an aggregate 
principal amount of $70 million, comprising a $55.0 million draw in June 2016 and an additional $15.0 million tranche, 
which we had the option to draw during the second quarter of 2017 and did not exercise. The initial proceeds were partially 
used  to  pay  the  outstanding  principal  and  final  payment  owed  on  our  previous  loan  agreement  with  the  Lenders. The 
remaining proceeds are to be used for working capital and general business requirements. The Loan Agreement is secured 
by substantially all of the assets of the Company and its subsidiary, Halozyme, Inc., except that the collateral does not 
include any equity interests in Halozyme, Inc., any intellectual property (including all licensing, collaboration and similar 
agreements relating thereto), and certain other excluded assets. The Loan Agreement contains customary representations, 
warranties and covenants by us, which covenants limit our ability to convey, sell, lease, transfer, assign or otherwise dispose 
of certain of our assets; engage in any business other than the businesses currently engaged in by us or reasonably related 
thereto; liquidate or dissolve; make certain management changes; undergo certain change of control events; create, incur, 
assume, or be liable with respect to certain indebtedness; grant certain liens; pay dividends and make certain other restricted 
payments; make certain investments; make payments on any subordinated debt; and enter into transactions with any of our 
affiliates outside of the ordinary course of business or permit our subsidiaries to do the same. In addition, subject to certain 
exceptions, we are required to maintain with SVB our primary deposit accounts, securities accounts and commodities, and 
to do the same for our domestic subsidiary. Complying with these covenants may make it more difficult for us to successfully 
execute our business strategy. 

22

The Loan Agreement also contains customary indemnification obligations and customary events of default, including, 
among other things, our failure to fulfill certain of our obligations under the Loan Agreement and the occurrence of a material 
adverse change which is defined as a material adverse change in our business, operations or condition (financial or otherwise), 
a material impairment of the prospect of repayment of any portion of the loan, or a material impairment in the perfection 
or priority of the Lender’s lien in the collateral or in the value of such collateral. 

Our ability to make payments on our debt will depend on our future operating performance and ability to generate 
cash and may also depend on our ability to obtain additional debt or equity financing. We will need to use cash to pay 
principal and interest on our debt, thereby reducing the funds available to fund our research and development programs, 
strategic  initiatives  and  working  capital  requirements.  If  we  are  unable  to  generate  sufficient  cash  to  service  our  debt 
obligation, an event of default may occur. In the event of default by us under the Credit Agreement or the Loan Agreement, 
the lenders would be entitled to exercise their remedies thereunder, including the right to accelerate the debt, upon which 
we may be required to repay all amounts then outstanding under the Credit Agreement or the Loan Agreement which could 
harm our financial condition.

If proprietary or collaboration product candidates are approved for marketing but do not gain market acceptance, our 
business may suffer and we may not be able to fund future operations.

Assuming  that  our  proprietary  or  collaboration  product  candidates  obtain  the  necessary  regulatory  approvals  for 
commercial sale, a number of factors may affect the market acceptance of these existing product candidates or any other 
products which are developed or acquired in the future, including, among others:

• 
• 

• 

• 
• 

• 
• 

the price of products relative to other therapies for the same or similar treatments;
the perception by patients, physicians and other members of the health care community of the effectiveness 
and safety of these products for their prescribed treatments relative to other therapies for the same or similar 
treatments;
our ability to fund our sales and marketing efforts and the ability and willingness of our collaborators to fund 
sales and marketing efforts;
the degree to which the use of these products is restricted by the approved product label;
the effectiveness of our sales and marketing efforts and the effectiveness of the sales and marketing efforts of 
our collaborators; 
the introduction of generic competitors; and
the extent to which reimbursement for our products and related treatments will be available from third party 
payors including government insurance programs (Medicare and Medicaid) and private insurers.

If these products do not gain market acceptance, we may not be able to fund future operations, including the development 
or acquisition of new product candidates and/or our sales and marketing efforts for our approved products, which would 
cause our business to suffer.

In addition, our proprietary and collaboration product candidates will be restricted to the labels approved by FDA and 
applicable regulatory bodies, and these restrictions may limit the marketing and promotion of the ultimate products. If the 
approved labels are restrictive, the sales and marketing efforts for these products may be negatively affected.

Developing and marketing pharmaceutical products for human use involves significant product liability risks for 
which we currently have limited insurance coverage.

The testing, marketing and sale of pharmaceutical products involves the risk of product liability claims by consumers 
and other third parties. Although we maintain product liability insurance coverage, product liability claims can be high in 
the pharmaceutical industry, and our insurance may not sufficiently cover our actual liabilities. If product liability claims 
were to be made against us, it is possible that the liabilities may exceed the limits of our insurance policy, or our insurance 
carriers may deny, or attempt to deny, coverage in certain instances. If a lawsuit against us is successful, then the lack or 
insufficiency of insurance coverage could materially and adversely affect our business and financial condition. Furthermore, 
various distributors of pharmaceutical products require minimum product liability insurance coverage before purchase or 
acceptance of products for distribution. Failure to satisfy these insurance requirements could impede our ability to achieve 
broad distribution of our proposed products, and higher insurance requirements could impose additional costs on us. In 
addition, since many of our collaboration product candidates include the pharmaceutical products of a third party, we run 
the risk that problems with the third party pharmaceutical product will give rise to liability claims against us.

23

Our inability to attract, hire and retain key management and scientific personnel could negatively affect our business.

Our success depends on the performance of key management and scientific employees with relevant experience. For 
example, in order to pursue our current business strategy, we will need to recruit and retain personnel experienced in oncology 
drug development which is a highly competitive market for talent. We depend substantially on our ability to hire, train, 
motivate and retain high quality personnel, especially our scientists and management team. Particularly in view of the small 
number of employees on our staff to cover our numerous programs and key functions, if we are unable to retain existing 
personnel or identify or hire additional personnel, we may not be able to research, develop, commercialize or market our 
products and product candidates as expected or on a timely basis and we may not be able to adequately support current and 
future alliances with strategic collaborators. Our use of domestic and international third-party contractors, consultants and 
staffing agencies also subjects us to potential co-employment liability claims.

Furthermore, if we were to lose key management personnel, we would likely lose some portion of our institutional 
knowledge and technical know-how, potentially causing a substantial delay in one or more of our development programs 
until adequate replacement personnel could be hired and trained. We currently have a severance policy applicable to all 
employees and a change in control policy applicable to senior executives.

We do not have key man life insurance policies on the lives of any of our employees.

Our operations might be interrupted by the occurrence of a natural disaster or other catastrophic event.

Our operations, including laboratories, offices and other research facilities, are located in four buildings in San Diego, 
California. In addition, we have a satellite office in South San Francisco, California. We depend on our facilities and on our 
collaborators, contractors and vendors for the continued operation of our business. Natural disasters or other catastrophic 
events, interruptions in the supply of natural resources, political and governmental changes, wildfires and other fires, floods, 
explosions, actions of animal rights activists, earthquakes and civil unrest could disrupt our operations or those of our 
collaborators, contractors and vendors. Even though we believe we carry commercially reasonable business interruption 
and liability insurance, and our contractors may carry liability insurance that protect us in certain events, we may suffer 
losses as a result of business interruptions that exceed the coverage available under our and our contractors’ insurance 
policies or for which we or our contractors do not have coverage. Any natural disaster or catastrophic event could have a 
significant negative impact on our operations and financial results. Moreover, any such event could delay our research and 
development programs.

If we or our collaborators do not achieve projected development, clinical, regulatory or sales goals in the timeframes 
we publicly announce or otherwise expect, the commercialization of our products and the development of our product 
candidates may be delayed and, as a result, our stock price may decline, and we may face lawsuits relating to such 
declines.

From time to time, we or our collaborators may publicly articulate the estimated timing for the accomplishment of 
certain scientific, clinical, regulatory and other product development goals. The accomplishment of any goal is typically 
based on numerous assumptions, and the achievement of a particular goal may be delayed for any number of reasons both 
within and outside of our control. If scientific, regulatory, strategic or other factors cause us to not meet a goal, regardless 
of whether that goal has been publicly articulated or not, our stock price may decline rapidly. For example, the announcement 
in April 2014 of the temporary halting of our Phase 2 clinical trial for PEGPH20 caused a rapid decline in our stock price. 
Stock price declines may also trigger direct or derivative shareholder lawsuits. As with any litigation proceeding, the eventual 
outcome of any legal action is difficult to predict. If any such lawsuits occur, we will incur expenses in connection with the 
defense of these lawsuits, and we may have to pay substantial damages or settlement costs in connection with any resolution 
thereof. Although we have insurance coverage against which we may claim recovery against some of these expenses and 
costs, the amount of coverage may not be adequate to cover the full amount or certain expenses and costs may be outside 
the scope of the policies we maintain. In the event of an adverse outcome or outcomes, our business could be materially 
harmed from depletion of cash resources, negative impact on our reputation, or restrictions or changes to our governance 
or other processes that may result from any final disposition of the lawsuit. Moreover, responding to and defending pending 
litigation significantly diverts management’s attention from our operations.

In addition, the consistent failure to meet publicly announced milestones may erode the credibility of our management 

team with respect to future milestone estimates. 

24

Future acquisitions could disrupt our business and harm our financial condition.

In order to augment our product pipeline or otherwise strengthen our business, we may decide to acquire additional 
businesses, products and technologies. As we have limited experience in evaluating and completing acquisitions, our ability 
as an organization to make such acquisitions is unproven. Acquisitions could require significant capital infusions and could 
involve many risks, including, but not limited to, the following:

•  we may have to issue convertible debt or equity securities to complete an acquisition, which would dilute our 

• 

stockholders and could adversely affect the market price of our common stock;
an acquisition may negatively impact our results of operations because it may require us to amortize or write 
down amounts related to goodwill and other intangible assets, or incur or assume substantial debt or liabilities, 
or it may cause adverse tax consequences, substantial depreciation or deferred compensation charges;

•  we may encounter difficulties in assimilating and integrating the business, products, technologies, personnel 

• 

• 

or operations of companies that we acquire;
certain acquisitions may impact our relationship with existing or potential collaborators who are competitive 
with the acquired business, products or technologies;
acquisitions may require significant capital infusions and the acquired businesses, products or technologies 
may not generate sufficient value to justify acquisition costs;

•  we may take on liabilities from the acquired company such as debt, legal liabilities or business risk which 

could be significant;
an acquisition may disrupt our ongoing business, divert resources, increase our expenses and distract our 
management;
acquisitions may involve the entry into a geographic or business market in which we have little or no prior 
experience; and
key personnel of an acquired company may decide not to work for us.

• 

• 

• 

If any of these risks occurred, it could adversely affect our business, financial condition and operating results. There 
is no assurance that we will be able to identify or consummate any future acquisitions on acceptable terms, or at all. If we 
do pursue any acquisitions, it is possible that we may not realize the anticipated benefits from such acquisitions or that the 
market will not view such acquisitions positively.

Security breaches may disrupt our operations and harm our operating results.

The wrongful use, theft, deliberate sabotage or any other type of security breach with respect to any of our or any of 
our  vendors and partners’ information technology storage and access systems could result in the disruption of our ability 
to use such systems or disclosure or dissemination of our proprietary and confidential information that is electronically 
stored, including research or clinical data, resulting in a material adverse impact on our business, operating results and 
financial condition. Our security and data recovery measures may not be adequate to protect against computer viruses, 
break-ins,  and  similar  disruptions  from  unauthorized  tampering  with  our  electronic  storage  systems.  Furthermore,  any 
physical break-in or trespass of our facilities could result in the misappropriation, theft, sabotage or any other type of security 
breach with respect to our proprietary and confidential information, including research or clinical data or damage to our 
research and development equipment and assets. Such adverse effects could be material and irrevocable to our business, 
operating results and financial condition.

25

Risks Related To Ownership of Our Common Stock

Our stock price is subject to significant volatility.

We participate in a highly dynamic industry which often results in significant volatility in the market price of common 
stock irrespective of company performance. The high and low sales prices of our common stock during the twelve months 
ended December 31, 2017 were $21.13 and $9.68, respectively. We expect our stock price to continue to be subject to 
significant volatility and, in addition to the other risks and uncertainties described elsewhere in this Annual Report on Form 
10-K and all other risks and uncertainties that are either not known to us at this time or which we deem to be immaterial, 
any of the following factors may lead to a significant drop in our stock price:

• 
• 

• 

• 
• 

• 
• 
• 
• 

• 
• 

• 
• 
• 
• 

• 

• 

• 

• 
• 
• 

the presence of competitive products to those being developed by us;
failure  (actual  or  perceived)  of  our  collaborators  to  devote  attention  or  resources  to  the  development  or 
commercialization of product candidates licensed to such collaborator;
a dispute regarding our failure, or the failure of one of our third party collaborators, to comply with the terms 
of a collaboration agreement; 
the termination, for any reason, of any of our collaboration agreements;
the sale of common stock by any significant stockholder, including, but not limited to, direct or indirect sales 
by members of management or our Board of Directors;
the resignation, or other departure, of members of management or our Board of Directors;
general negative conditions in the healthcare industry;
general negative conditions in the financial markets;
the cost associated with obtaining regulatory approval for any of our proprietary or collaboration product 
candidates;
the failure, for any reason, to secure or defend our intellectual property position;
for those products that are not yet approved for commercial sale, the failure or delay of applicable regulatory 
bodies to approve such products;
identification of safety or tolerability issues;
failure of clinical trials to meet efficacy endpoints;
suspensions or delays in the conduct of clinical trials or securing of regulatory approvals;
adverse regulatory action with respect to our and our collaborators’ products and product candidates such as 
clinical holds, imposition of onerous requirements for approval or product recalls;
our failure, or the failure of our third party collaborators, to successfully commercialize products approved 
by applicable regulatory bodies such as the FDA;
our failure, or the failure of our third party collaborators, to generate product revenues anticipated by 
investors;
disruptions in our clinical or commercial supply chains, including disruptions caused by problems with a bulk 
rHuPH20 contract manufacturer or a fill and finish manufacturer for any product or product candidate; 
the sale of additional debt and/or equity securities by us;
our failure to obtain financing on acceptable terms or at all; or
a restructuring of our operations.

Future transactions where we raise capital may negatively affect our stock price.

We are currently a “Well-Known Seasoned Issuer” and may file automatic shelf registration statements at any time 
with  the  SEC.  In  February  2017,  we  filed  an  automatic  shelf  registration  statement  on  Form  S-3  (Registration 
No. 333-216315) with the SEC. Sales of substantial amounts of shares of our common stock or other securities under our 
current or future shelf registration statements could lower the market price of our common stock and impair our ability to 
raise capital through the sale of equity securities. 

26

Anti-takeover provisions in our charter documents and Delaware law may make an acquisition of us more difficult.

Anti-takeover provisions in our charter documents and Delaware law may make an acquisition of us more difficult. 
First, our board of directors is classified into three classes of directors. Under Delaware law, directors of a corporation with 
a classified board may be removed only for cause unless the corporation’s certificate of incorporation provides otherwise. 
Our amended and restated certificate of incorporation, as amended, does not provide otherwise. In addition, our bylaws 
limit who may call special meetings of stockholders, permitting only stockholders holding at least 50% of our outstanding 
shares to call a special meeting of stockholders. Our amended and restated certificate of incorporation, as amended, does 
not include a provision for cumulative voting for directors. Under cumulative voting, a minority stockholder holding a 
sufficient percentage of a class of shares may be able to ensure the election of one or more directors. Finally, our bylaws 
establish procedures, including advance notice procedures, with regard to the nomination of candidates for election as 
directors and stockholder proposals.

These provisions may discourage potential takeover attempts, discourage bids for our common stock at a premium 
over market price or adversely affect the market price of, and the voting and other rights of the holders of, our common 
stock. These provisions could also discourage proxy contests and make it more difficult for stockholders to elect directors 
other than the candidates nominated by our board of directors.

In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware 
General Corporation Law, which may prohibit large stockholders from consummating a merger with, or acquisition of, us.

These provisions may deter an acquisition of us that might otherwise be attractive to stockholders.

Risks Related to Our Industry

Our products must receive regulatory approval before they can be sold, and compliance with the extensive government 
regulations is expensive and time consuming and may result in the delay or cancellation of product sales, introductions 
or modifications.

Extensive  industry  regulation  has  had,  and  will  continue  to  have,  a  significant  impact  on  our  business.  All 
pharmaceutical companies, including ours, are subject to extensive, complex, costly and evolving regulation by the health 
regulatory  agencies  including  the  FDA  (and  with  respect  to  controlled  drug  substances,  the  U.S.  Drug  Enforcement 
Administration (DEA)) and equivalent foreign regulatory agencies and state and local/regional government agencies. The 
Federal Food, Drug and Cosmetic Act, the Controlled Substances Act and other domestic and foreign statutes and regulations 
govern or influence the testing, manufacturing, packaging, labeling, storing, recordkeeping, safety, approval, advertising, 
promotion, sale and distribution of our products. We are dependent on receiving FDA and other governmental approvals, 
including regulatory approvals in jurisdictions outside the United States, prior to manufacturing, marketing and shipping 
our products. Consequently, there is always a risk that the FDA or other applicable governmental authorities, including 
those  outside  the  United  States,  will  not  approve  our  products  or  may  impose  onerous,  costly  and  time-consuming 
requirements such as additional clinical or animal testing. Regulatory authorities may require that we change our studies 
or  conduct  additional  studies,  which  may  significantly  delay  or  make  continued  pursuit  of  approval  commercially 
unattractive. For example, the approval of Baxalta’s HYQVIA BLA was delayed by the FDA until we and Baxalta provided 
additional  preclinical  data  sufficient  to  address  concerns  regarding  non-neutralizing  antibodies  to  rHuPH20  that  were 
detected in the registration trial. Although these antibodies have not been associated with any known adverse clinical effects, 
and the HYQVIA BLA was approved by the FDA in September 2014, the FDA or other foreign regulatory agency may, at 
any time, halt our and our collaborators’ development and commercialization activities due to safety concerns. In addition, 
even if our products are approved, regulatory agencies may also take post-approval action limiting or revoking our ability 
to sell our products. Any of these regulatory actions may adversely affect the economic benefit we may derive from our 
products and therefore harm our financial condition.

Under certain of these regulations, we and our contract suppliers and manufacturers are subject to periodic inspection 
of our or their respective facilities, procedures and operations and/or the testing of products by the FDA, the DEA and other 
authorities, which conduct periodic inspections to confirm that we and our contract suppliers and manufacturers are in 
compliance  with  all  applicable  regulations. The  FDA  also  conducts  pre-approval  and  post-approval  reviews  and  plant 
inspections to determine whether our systems, or our contract suppliers’ and manufacturers’ processes, are in compliance 
with  cGMP  and  other  FDA  regulations.  If  we,  or  our  contract  supplier,  fail  these  inspections,  we  may  not  be  able  to 
commercialize our product in a timely manner without incurring significant additional costs, or at all.

27

In addition, the FDA imposes a number of complex regulatory requirements on entities that advertise and promote 
pharmaceuticals  including,  but  not  limited  to,  standards  and  regulations  for  direct-to-consumer  advertising,  off-label 
promotion, industry-sponsored scientific and educational activities, and promotional activities involving the internet.

We may be subject, directly or indirectly, to various broad federal and state healthcare laws. If we are unable to comply, 
or have not fully complied, with such laws, we could face civil, criminal and administrative penalties, damages, monetary 
fines,  disgorgement,  possible  exclusion  from  participation  in  Medicare,  Medicaid  and  other  federal  healthcare 
programs,  contractual  damages,  reputational  harm,  diminished  profits  and  future  earnings  and  curtailment  or 
restructuring of our operations, any of which could adversely affect our ability to operate.

Our business operations and activities may be directly, or indirectly, subject to various broad federal and state healthcare 
laws, including without limitation, anti-kickback laws, the Foreign Corrupt Practices Act, false claims laws, civil monetary 
penalty laws, data privacy and security laws, tracing and tracking laws, as well as transparency laws regarding payments 
or other items of value provided to healthcare providers. These laws may restrict or prohibit a wide range of business 
activities, including, but not limited to, research, manufacturing, distribution, pricing, discounting, marketing and promotion 
and  other  business  arrangements.  These  laws  may  impact,  among  other  things,  our  current  activities  with  principal 
investigators and research subjects, as well as sales, marketing and education programs. Many states have similar healthcare 
fraud and abuse laws, some of which may be broader in scope and may not be limited to items or services for which payment 
is made by a government health care program.

Efforts to ensure that our business arrangements will comply with applicable healthcare laws may involve substantial 
costs. While we have adopted a healthcare corporate compliance program, it is possible that governmental and enforcement 
authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law 
interpreting applicable fraud and abuse or other healthcare laws. If our operations or activities are found to be in violation 
of any of the laws described above or any other governmental regulations that apply to us, we may be subject to, without 
limitation, civil, criminal and administrative penalties, damages, monetary fines, disgorgement, possible exclusion from 
participation  in  Medicare,  Medicaid  and  other  federal  healthcare  programs,  contractual  damages,  reputational  harm, 
diminished profits and future earnings and curtailment or restructuring of our operations, any of which could adversely 
affect our ability to operate.

In addition, any sales of products outside the U.S. will also likely subject us to foreign equivalents of the healthcare 

laws mentioned above, among other foreign laws.

We may be required to initiate or defend against legal proceedings related to intellectual property rights, which may 
result in substantial expense, delay and/or cessation of the development and commercialization of our products.

We primarily rely on patents to protect our intellectual property rights. The strength of this protection, however, is 

uncertain. For example, it is not certain that:

•  we will be able to obtain patent protection for our products and technologies;
• 

the scope of any of our issued patents will be sufficient to provide commercially significant exclusivity for 
our products and technologies;
others will not independently develop similar or alternative technologies or duplicate our technologies and 
obtain patent protection before we do; and
any  of  our  issued  patents,  or  patent  pending  applications  that  result  in  issued  patents,  will  be  held  valid, 
enforceable and infringed in the event the patents are asserted against others.

• 

• 

We currently own or license several patents and also have pending patent applications applicable to rHuPH20 and 
other proprietary materials. There can be no assurance that our existing patents, or any patents issued to us as a result of 
our pending patent applications, will provide a basis for commercially viable products, will provide us with any competitive 
advantages,  or  will  not  face  third  party  challenges  or  be  the  subject  of  further  proceedings  limiting  their  scope  or 
enforceability. Any weaknesses or limitations in our patent portfolio could have a material adverse effect on our business 
and financial condition. In addition, if any of our pending patent applications do not result in issued patents, or result in 
issued patents with narrow or limited claims, this could result in us having no or limited protection against generic or 
biosimilar competition against our product candidates which would have a material adverse effect on our business and 
financial condition.

28

We may become involved in interference proceedings in the U.S. Patent and Trademark Office, or other proceedings 
in other jurisdictions, to determine the priority, validity or enforceability of our patents. In addition, costly litigation could 
be necessary to protect our patent position.

We also rely on trademarks to protect the names of our products (e.g. Hylenex recombinant). We may not be able to 
obtain trademark protection for any proposed product names we select. In addition, product names for pharmaceutical 
products must be approved by health regulatory authorities such as the FDA in addition to meeting the legal standards 
required for trademark protection and product names we propose may not be timely approved by regulatory agencies which 
may delay product launch. In addition, our trademarks may be challenged by others. If we enforce our trademarks against 
third parties, such enforcement proceedings may be expensive.

We also rely on trade secrets, unpatented proprietary know-how and continuing technological innovation that we seek 
to protect with confidentiality agreements with employees, consultants and others with whom we discuss our business. 
Disputes  may  arise  concerning  the  ownership  of  intellectual  property  or  the  applicability  or  enforceability  of  these 
agreements, and we might not be able to resolve these disputes in our favor.

In addition to protecting our own intellectual property rights, third parties may assert patent, trademark or copyright 
infringement or other intellectual property claims against us. If we become involved in any intellectual property litigation, 
we may be required to pay substantial damages, including but not limited to treble damages, attorneys’ fees and costs, for 
past infringement if it is ultimately determined that our products infringe a third party’s intellectual property rights. Even 
if infringement claims against us are without merit, defending a lawsuit takes significant time, may be expensive and may 
divert management’s attention from other business concerns. Further, we may be stopped from developing, manufacturing 
or selling our products until we obtain a license from the owner of the relevant technology or other intellectual property 
rights. If such a license is available at all, it may require us to pay substantial royalties or other fees.

Patent protection for protein-based therapeutic products and other biotechnology inventions is subject to a great deal 
of uncertainty, and if patent laws or the interpretation of patent laws change, our competitors may be able to develop 
and commercialize products based on our discoveries.

Patent protection for protein-based therapeutic products is highly uncertain and involves complex legal and factual 
questions. In recent years, there have been significant changes in patent law, including the legal standards that govern the 
scope  of  protein  and  biotechnology  patents.  Standards  for  patentability  of  full-length  and  partial  genes,  and  their 
corresponding proteins, are changing. Recent court decisions have made it more difficult to obtain patents, by making it 
more difficult to satisfy the patentable subject matter requirement and the requirement of non-obviousness, have decreased 
the availability of injunctions against infringers, and have increased the likelihood of challenging the validity of a patent 
through a declaratory judgment action. Taken together, these decisions could make it more difficult and costly for us to 
obtain, license and enforce our patents. In addition, the Leahy-Smith America Invents Act (HR 1249) was signed into law 
in September 2011, which among other changes to the U.S. patent laws, changes patent priority from “first to invent” to 
“first to file,” implements a post-grant opposition system for patents and provides for a prior user defense to infringement. 
These judicial and legislative changes have introduced significant uncertainty in the patent law landscape and may potentially 
negatively impact our ability to procure, maintain and enforce patents to provide exclusivity for our products.

There also have been, and continue to be, policy discussions concerning the scope of patent protection awarded to 
biotechnology inventions. Social and political opposition to biotechnology patents may lead to narrower patent protection 
within the biotechnology industry. Social and political opposition to patents on genes and proteins and recent court decisions 
concerning patentability of isolated genes may lead to narrower patent protection, or narrower claim interpretation, for 
isolated  genes,  their  corresponding  proteins  and  inventions  related  to  their  use,  formulation  and  manufacture.  Patent 
protection relating to biotechnology products is also subject to a great deal of uncertainty outside the U.S., and patent laws 
are evolving and undergoing revision in many countries. Changes in, or different interpretations of, patent laws worldwide 
may  result  in  our  inability  to  obtain  or  enforce  patents,  and  may  allow  others  to  use  our  discoveries  to  develop  and 
commercialize competitive products, which would impair our business.

If third party reimbursement and customer contracts are not available, our products may not be accepted in the 
market.

Our ability to earn sufficient returns on our products will depend in part on the extent to which reimbursement for our 
products and related treatments will be available from government health administration authorities, private health insurers, 
managed care organizations and other healthcare providers.

29

Third-party payors are increasingly attempting to limit both the coverage and the level of reimbursement of new drug 
products to contain costs. Consequently, significant uncertainty exists as to the reimbursement status of newly approved 
healthcare  products.  Third  party  payors  may  not  establish  adequate  levels  of  reimbursement  for  the  products  that  we 
commercialize, which could limit their market acceptance and result in a material adverse effect on our revenues and financial 
condition.

Customer contracts, such as with group purchasing organizations and hospital formularies, will often not offer contract 
or formulary status without either the lowest price or substantial proven clinical differentiation. If, for example, Hylenex 
is compared to animal-derived hyaluronidases by these entities, it is possible that neither of these conditions will be met, 
which could limit market acceptance and result in a material adverse effect on our revenues and financial condition.

The rising cost of healthcare and related pharmaceutical product pricing has led to cost containment pressures that 
could cause us to sell our products at lower prices, resulting in less revenue to us.

Any of the proprietary or collaboration products that have been, or in the future are, approved by the FDA may be 
purchased or reimbursed by state and federal government authorities, private health insurers and other organizations, such 
as  health  maintenance  organizations  and  managed  care  organizations.  Such  third  party  payors  increasingly  challenge 
pharmaceutical product pricing. The trend toward managed healthcare in the U.S., the growth of such organizations, and 
various  legislative  proposals  and  enactments  to  reform  healthcare  and  government  insurance  programs,  including  the 
Medicare Prescription Drug Modernization Act of 2003, could significantly influence the manner in which pharmaceutical 
products are prescribed and purchased, resulting in lower prices and/or a reduction in demand. Such cost containment 
measures and healthcare reforms could adversely affect our ability to sell our products.

In March 2010, the U.S. adopted the Patient Protection and Affordable Care Act, as amended by the Health Care and 
Education  Reconciliation Act  (the  PPACA).  This  law  substantially  changes  the  way  healthcare  is  financed  by  both 
governmental and private insurers, and significantly impacts the pharmaceutical industry. The PPACA contains a number 
of provisions that are expected to impact our business and operations, in some cases in ways we cannot currently predict. 
Changes that may affect our business include those governing enrollment in federal healthcare programs, reimbursement 
changes, fraud and abuse and enforcement. These changes will impact existing government healthcare programs and will 
result in the development of new programs, including Medicare payment for performance initiatives and improvements to 
the physician quality reporting system and feedback program.

Additional provisions of the PPACA may negatively affect our revenues in the future. For example, the PPACA imposes 
a  non-deductible  excise  tax  on  pharmaceutical  manufacturers  or  importers  that  sell  branded  prescription  drugs  to  U.S. 
government programs that we believe will impact our revenues from our products. In addition, as part of the PPACA’s 
provisions closing a funding gap that currently exists in the Medicare Part D prescription drug program, we will also be 
required to provide a 50% discount on branded prescription drugs dispensed to beneficiaries under this prescription drug 
program. Recently, Congress and the current administration have proposed and taken various steps to revise, repeal or delay 
implementation of, various aspects of the Healthcare Reform Act. We expect that the PPACA, as it may be amended, and 
other healthcare reform measures that may be adopted in the future could have a material adverse effect on our industry 
generally and on our ability to maintain or increase our product sales or successfully commercialize our product candidates 
and could limit or eliminate our future spending on development projects.

Furthermore,  individual  states  have  become  increasingly  aggressive  in  passing  legislation  and  implementing 
regulations  designed  to  control  pharmaceutical  product  pricing,  including  price  or  patient  reimbursement  constraints, 
discounts, restrictions on certain product access, importation from other countries and bulk purchasing. Legally mandated 
price controls on payment amounts by third party payors or other restrictions could negatively and materially impact our 
revenues and financial condition. We anticipate that we will encounter similar regulatory and legislative issues in most other 
countries outside the U.S.

We face intense competition and rapid technological change that could result in the development of products by others 
that are superior to our proprietary and collaboration products under development.

Our proprietary and collaboration products have numerous competitors in the U.S. and abroad including, among others, 
major pharmaceutical and specialized biotechnology firms, universities and other research institutions that have developed 
competing products. The competitors for Hylenex recombinant include, but are not limited to, Valeant Pharmaceuticals 
International, Inc.’s FDA-approved product, Vitrase®, an ovine (ram) hyaluronidase, and Amphastar Pharmaceuticals, Inc.’s 
product, Amphadase®, a bovine (bull) hyaluronidase. For our PEGPH20 product candidate, such competitors may include 

30

major pharmaceutical and specialized biotechnology firms. These competitors may develop technologies and products that 
are more effective, safer, or less costly than our current or future proprietary and collaboration product candidates or that 
could  render  our  technologies  and  product  candidates  obsolete  or  noncompetitive.  Many  of  these  competitors  have 
substantially more resources and product development, manufacturing and marketing experience and capabilities than we 
do. In addition, many of our competitors have significantly greater experience than we do in undertaking preclinical testing 
and clinical trials of pharmaceutical product candidates and obtaining FDA and other regulatory approvals of products and 
therapies for use in healthcare.

Item 1B.  Unresolved Staff Comments

None.

Item 2.  Properties

Our administrative offices and research facilities are currently located in San Diego, California. We lease an aggregate 
of approximately 76,000 square feet of office and research space. In addition, we have an office in South San Francisco, 
California, where we lease approximately 10,000 square feet of office space. We believe our facilities are adequate for our 
current and near-term needs, and, if necessary, we will be able to locate additional facilities as needed.

Item 3. 

Legal Proceedings

From time to time, we may be involved in disputes, including litigation, relating to claims arising out of operations 
in the normal course of our business. Any of these claims could subject us to costly legal expenses and, while we generally 
believe that we have adequate insurance to cover many different types of liabilities, our insurance carriers may deny coverage 
or our policy limits may be inadequate to fully satisfy any damage awards or settlements. If this were to happen, the payment 
of any such awards could have a material adverse effect on our consolidated results of operations and financial position. 
Additionally, any such claims, whether or not successful, could damage our reputation and business. We currently are not 
a party to any legal proceedings, the adverse outcome of which, in management’s opinion, individually or in the aggregate, 
would have a material adverse effect on our consolidated results of operations or financial position. 

Item 4.  Mine Safety Disclosures

Not applicable.

31

Item 5.  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 

PART II

Securities

Market Information

Our common stock is listed on the NASDAQ Global Select Market under the symbol “HALO.” The following table 
sets forth the high and low sales prices per share of our common stock during each quarter of the two most recent fiscal 
years:

First Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2017

2016

High
$15.20

$15.05

$17.62

$21.13

Low
$9.68

$11.51

$11.41

$16.58

High
$17.51

$12.33

$12.75

$14.38

Low
$6.96

$7.70

$8.43

$8.18

On February 13, 2018, the closing sales price of our common stock on the NASDAQ Global Select Market was $17.84 
per share. As of February 13, 2018, we had approximately 21,200 stockholders of record and beneficial owners of our 
common stock.

Dividends

We have never declared or paid any dividends on our common stock. We currently intend to retain available cash for 
funding operations; therefore, we do not expect to pay any dividends on our common stock in the foreseeable future. In 
addition, the provisions of our borrowing arrangements limit, among other things, our ability to pay dividends and make 
certain other payments. Any future determination to pay dividends on our common stock will be at the discretion of our 
board  of  directors  and  will  depend  upon,  among  other  factors,  our  results  of  operations,  financial  condition,  capital 
requirements, contract restrictions, business prospects and other factors our board of directors may deem relevant.

32

 
 
Stock Performance Graph and Cumulative Total Return

Notwithstanding any statement to the contrary in any of our previous or future filings with the SEC, the following 
information relating to the price performance of our common stock shall not be deemed to be “filed” with the SEC or to 
be “soliciting material” under the Securities Exchange Act of 1934, as amended, or the Exchange Act, and it shall not be 
deemed to be incorporated by reference into any of our filings under the Securities Act of 1933, as amended, or the Exchange 
Act, except to the extent we specifically incorporate it by reference into such filing.

The graph below compares Halozyme Therapeutics, Inc.’s cumulative five-year total shareholder return on common 
stock with the cumulative total returns of the NASDAQ Composite Index and the NASDAQ Biotechnology Index. The 
graph tracks the performance of a $100 investment in our common stock and in each of the indexes (with the reinvestment 
of all dividends) from December 31, 2012 to December 31, 2017. The historical stock price performance included in this 
graph is not necessarily indicative of future stock price performance.

Halozyme Therapeutics, Inc. . . . . . . . . . . . . .
NASDAQ Composite . . . . . . . . . . . . . . . . . .
NASDAQ Biotechnology . . . . . . . . . . . . . . .

12/31/2012
$100
$100
$100

12/31/2013
$223
$140
$166

12/31/2014
$144
$161
$223

12/31/2015
$258
$172
$249

12/31/2016
$147
$187
$196

12/31/2017
$302
$243
$239

33

Item 6.  Selected Financial Data

The selected consolidated financial data set forth below as of December 31, 2017 and 2016, and for the years ended 
December 31, 2017, 2016 and 2015, are derived from our audited consolidated financial statements included elsewhere in 
this report. This information should be read in conjunction with those consolidated financial statements, the notes thereto, 
and  with  “Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations.”  The  selected 
consolidated financial data set forth below as of December 31, 2015, 2014 and 2013, and for the years ended December 31, 
2014 and 2013, are derived from our audited consolidated financial statements that are contained in reports previously filed 
with the SEC, not included herein.

Summary Financial Information

Year Ended December 31,

Statement of Operations Data:

Total revenues . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss). . . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss) per share, basic. . . . . . . . . . . .
Net income (loss) per share, diluted . . . . . . . . . .
Shares used in computing net income (loss) per
   share, basic . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shares used in computing net income (loss) per
   share, diluted. . . . . . . . . . . . . . . . . . . . . . . . . . .

2017

$ 316,613
$ 62,971
0.46
$
0.45
$
136,419

2014

2013

2016

2015
(in thousands, except for per share amounts)
$ 146,691
$ 54,799
$ 75,334
$ 135,057
$ (103,023) $ (32,231) $ (68,375) $ (83,479)
(0.74)
$
(0.74)
$
112,805

(0.25) $
(0.25) $

(0.56) $
(0.56) $

(0.81) $
(0.81) $

122,690

127,964

126,704

139,068

127,964

126,704

122,690

112,805

Balance Sheet Data:

2017

2016

2015

2014

2013

As of December 31,

(in thousands)

Cash and cash equivalents and available-for-
   sale marketable securities . . . . . . . . . . . . . . . . .
Working capital . . . . . . . . . . . . . . . . . . . . . . . . . .
Total assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, net . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stockholders’ equity (deficit) . . . . . . . . . . . . . . .

$ 469,214
$ 379,044
$ 519,945
$ 60,865
$ 125,140
$ 311,579
$ 208,366

$ 108,339
$ 204,981
$ 109,315
$ 201,947
$ 181,789
$ 261,515
$ 53,223
$
44,618
$ 27,971
$ 199,228
$ 293,996
$ 138,790
$ (32,481) $ 42,999

$ 135,623
$ 136,990
$ 165,977
$ 54,634
$ 49,860
$ 124,625
$ 41,352

$ 71,503
$ 70,293
$ 101,793
$ 53,143
$ 49,772
$ 121,783
$ (19,991)

34

 
 
 
  
 
Item 7. 

 Management’s Discussion and Analysis of Financial Condition and Results of Operation

In addition to historical information, the following discussion contains forward-looking statements that are subject 
to risks and uncertainties. Actual results may differ substantially from those referred to herein due to a number of factors, 
including but not limited to risks described in the Part I, Item 1A, Risks Factors, and elsewhere in this Annual Report. 
References to “Notes” are Notes included in our Notes to Consolidated Financial Statements.

Overview

Halozyme Therapeutics, Inc. is a biotechnology company focused on developing and commercializing novel oncology 
therapies. Our proprietary enzymes are used to facilitate the delivery of injected drugs and fluids, potentially enhancing the 
efficacy and the convenience of other drugs or can be used to alter tissue structures for potential clinical benefit. We exploit 
our technology and expertise using a two pillar strategy that we believe enables us to manage risk and cost by: (1) developing 
our own proprietary products in therapeutic areas with significant unmet medical needs, with a focus on oncology, and (2) 
licensing our technology to biopharmaceutical companies to collaboratively develop products that combine our technology 
with the collaborators’ proprietary compounds.

The majority of our approved product and product candidates are based on rHuPH20, our patented recombinant human 
hyaluronidase enzyme. Our proprietary development pipeline consists primarily of pre-clinical and clinical stage product 
candidates  in  oncology.  Our  lead  oncology  program  is  PEGPH20  (PEGylated  recombinant  human  hyaluronidase),  a 
molecular entity we are developing in combination with currently approved cancer therapies as a candidate for the systemic 
treatment of tumors that accumulate HA. We have demonstrated that when HA accumulates in a tumor, it can cause higher 
pressure in the tumor, reducing blood flow into the tumor and with that, reduced access of cancer therapies to the tumor. 
Through our efforts and efforts of our partners and collaborators, we are currently in Phase 3 clinical testing for PEGPH20 
with ABRAXANE®  (nab-paclitaxel)  and  gemcitabine  in  stage  IV  pancreatic  ductal  adenocarcinoma  (“PDA”)  (HALO 
109-301), in Phase 1b clinical testing for PEGPH20 with KEYTRUDA® (pembrolizumab) in non-small cell lung cancer 
and gastric cancer (HALO 107-101), in Phase 1b/2 clinical testing for PEGPH20 with HALAVEN® (eribulin) in patients 
treated with up to two lines of prior therapy for HER2-negative metastatic breast cancer, in Phase 1b/2 clinical testing for 
PEGPH20 with Tecentriq® (atezolizumab) in patients with previously treated metastatic PDA, in Phase 1b/2 clinical testing 
for PEGPH20 with Tecentriq in patients with gastric cancer and in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq 
in patients with cholangiocarcinoma and gall bladder cancer (HALO 110-101/MATRIX).

We refer to the application of rHuPH20 to facilitate the delivery of other drugs or fluids as our ENHANZE® Technology. 
We license the ENHANZE Technology to form collaborations with biopharmaceutical companies that develop or market 
drugs requiring or benefiting from injection via the subcutaneous route of administration. We currently have ENHANZE 
collaborations with F. Hoffmann-La Roche, Ltd. and Hoffmann-La Roche, Inc. (Roche), Baxalta US Inc. and Baxalta GmbH 
(Baxalta Incorporated was acquired by Shire plc in June 2016) (Baxalta), Pfizer Inc. (Pfizer), Janssen Biotech, Inc. (Janssen), 
AbbVie, Inc. (AbbVie), Eli Lilly and Company (Lilly), Bristol-Myers Squibb Company (BMS) and Alexion Pharma Holding 
(Alexion).We receive royalties from two of these collaborations, including royalties from sales of one product from the 
Baxalta  collaboration  and  two  products  from  the  Roche  collaboration.  Future  potential  revenues  from  the  sales  and/or 
royalties of our approved products, product candidates, and ENHANZE collaborations will depend on the ability of Halozyme 
and our collaborators to develop, manufacture, secure and maintain regulatory approvals for approved products and product 
candidates and commercialize product candidates.

35

Our 2017 and recent key accomplishments and events are as follows:

ENHANZE collaborations

• 

• 

In January 2018, Roche initiated a Phase 1 study for an unnamed target with the ENHANZE Technology, triggering 
a $1.0 million milestone payment. 

In December 2017, we and Alexion entered into a collaboration and license agreement, under which Alexion has 
the worldwide license to develop and commercialize product combining our rHuPH20 enzyme with up to four 
targets from Alexion’s portfolio of products for an upfront payment of $40.0 million. Targets may be selected on 
an exclusive basis. Alexion elected two targets on an exclusive basis, including a C5 complement inhibitor, and 
has an option to select two additional targets within five years from the effective date of the agreement.

•  During the fourth quarter of 2017, Baxalta and Roche achieved sales milestones for commercial products using 
the ENHANZE Technology, triggering $5.0 million and $7.0 million in milestone payments, respectively. 

•  During the fourth quarter of 2017, Janssen initiated the first of four currently active Phase 3 studies of daratumumab 
combined with the ENHANZE Technology in amyloidosis patients, multiple myeloma patients and smoldering 
myeloma patients, triggering a $15.0 million milestone payment. 

• 

• 

• 

• 

In September 2017, we entered into a collaboration and license agreement with BMS, under which BMS has the 
worldwide  license  to  develop  and  commercialize  products  combining  our  ENHANZE Technology  with  BMS 
immuno-oncology targets directed at up to eleven targets for an upfront payment of $105.0 million. BMS has 
designated multiple immuno-oncology targets including programmed death 1 (PD-1) and has an option to select 
additional targets within five years from the effective date. 

In September 2017, we entered into an agreement with Roche for the right to develop and commercialize one 
additional exclusive target using our ENHANZE Technology for an upfront payment of $30.0 million.

In August 2017, Lilly initiated a Phase 1 study of an investigational new therapy in combination with rHuPH20.

In June 2017, the FDA approved Genentech’s RITUXAN HYCELA™, a combination of rituximab and rHuPH20, 
for CLL and two types of NHL, follicular lymphoma and diffuse large B-cell lymphoma.

Clinical trials

• 

• 

• 

• 

• 

• 

In January 2018, the Phase 1b portion of the study of HALAVEN (eribulin) with PEGPH20 in HER2-negative 
metastatic breast cancer closed enrollment. As a result of an Eisai portfolio decision, no further clinical development 
is planned on the Phase 2 portion of the study. Data analysis is ongoing and a submission of the results of this study 
to a scientific forum is expected in the second half of 2018. 

In October 2017, Genentech initiated a Phase 1b/2 clinical trial evaluating PEGPH20 in combination with Tecentriq 
in patients with gastric cancer. 

In October 2017, we initiated the second study in our clinical agreement with Genentech, a Phase 1b/2 open-label 
randomized  study  to  assess  Tecentriq  in  combination  with  PEGPH20  and  chemotherapy  in  patients  with 
cholangiocarcinoma and gall bladder cancer. 

In July 2017, Genentech initiated a Phase 1b/2 clinical trial evaluating PEGPH20 in combination with Tecentriq 
in patients with previously treated metastatic PDA.

In June 2017, results from Study HALO-202 were presented at the European Society for Medical Oncology (ESMO) 
World Congress of Gastrointestinal Cancer and the Annual Meeting of the American Society of Clinical Oncology 
(ASCO). The presentations expanded on the topline results announced in January 2017 with additional data from 
the study as of December 2016.

In April 2017, we presented at the annual meeting of the American Association of Cancer Research (AACR) that, 
in preclinical models, PEGPH20 increases the number of cancer-fighting white blood cells accumulating in the 
tumor and the effectiveness of immunotherapies, which builds upon prior preclinical findings and continues to 
support the potential benefits of remodeling the tumor microenvironment.

36

• 

• 

In March 2017, SWOG, an independent network of researchers that design and conduct cancer clinical trials, 
stopped enrollment in a Phase 1b/2 trial evaluating PEGPH20 plus modified FOLFIRINOX chemotherapy versus 
modified  FOLFIRINOX  alone  in  patients  with  previously  untreated  metastatic  pancreas  cancer.  SWOG’s 
independent Data Monitoring Committee found, based on preliminary data, that the addition of PEGPH20 given 
every  two  weeks  to  modified  FOLFIRINOX  would  be  unlikely  to  demonstrate  a  statistically  significant 
improvement in the primary endpoint of overall survival. SWOG further reported that a higher rate of death was 
observed in the PEGPH20 arm versus modified FOLFIRINOX alone. In January 2018, SWOG presented final 
overall survival (OS) and progression-free survival (PFS) data from the study at the ASCO-GI conference, which 
was consistent with the preliminary data findings. Our PEGPH20 studies and clinical collaborations in combination 
with agents other than modified FOLFIRINOX continue unchanged.

In January 2017, we announced topline results from the combined analysis of Stage 1 and Stage 2, and Stage 2 
alone, of the Study 109-202, based on a December 2016 data cutoff. Among the findings, the overall study population 
showed a statistically significant increase in PFS in the 84 total HA-High patients treated with PEGPH20 plus 
ABRAXANE and gemcitabine when compared to HA-High patients receiving ABRAXANE and gemcitabine 
alone. Stage 2 of the study, which completed enrollment in February 2016, showed a 91 percent improvement in 
median PFS for HA-High patients in the PEGPH20 arm, 8.6 months compared to 4.5 months in the control arm, 
and achieved its primary endpoint to evaluate and demonstrate a reduction in the rate of TE events in the PEGPH20 
arm.

Financing

• 

In May 2017, we completed an underwritten public offering pursuant to which we sold 11.5 million shares of 
common stock, including 1.5 million shares sold pursuant to the full exercise of an option to purchase additional 
shares granted to the underwriters. All of the shares were offered at a public offering price of $12.50 per share, 
generating approximately $134.9 million in net proceeds, after deducting underwriting discounts and commissions 
and other offering expenses. We intend to use the net proceeds from this offering to fund continued development 
of our PEGPH20 oncology program and for other general corporate purposes. 

Results of Operations

Comparison of Years Ended December 31, 2017, 2016 and 2015 

Product Sales, Net – Product sales, net were as follows (in thousands):

2017

Change

2016

Change

2015

Sales of bulk rHuPH20:

Roche . . . . . . . . . . . . . . . . . . . . . . . . . .
Baxalta . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales of Hylenex . . . . . . . . . . . . . . . . . . . . . .
Total product sales, net . . . . . . . . . . . .

$

$

22,325
11,717
1,204
15,150
50,396

(10)% $
5 %
(10)%
(6)%
(6)% $

24,786
11,117
1,332
16,157
53,392

9% $
73%
73%
—
16% $

22,773
6,410
772
16,127
46,082

Product sales, net decreased in 2017 compared to 2016, mainly due to decreases in the sales of bulk rHuPH20 to 
Roche and Hylenex, offset by an increase in sales of bulk rHuPH20 to Baxalta. Product sales, net increased in 2016 compared 
to 2015 due to an increase in the sales of bulk rHuPH20 to Baxalta and Roche. In 2017 and 2016, we performed services 
for Roche to bring on-line a second contract manufacturing facility for bulk rHuPH20. This new facility will become the 
primary source for Roche of bulk rHuPH20 once it receives regulatory approval. As a result, we anticipate Roche will 
deplete their existing inventory of rHuPH20 ahead of the transition to the new facility, which will result in lower bulk 
product sales in 2018. We anticipate Baxalta will deplete their existing inventory of rHuPH20 as part of a planned change 
to a more efficient manufacturing process, which will also result in lower bulk rHuPH20 product sales in 2018. We expect 
that future product sales of Hylenex to be flat or experience modest growth, although there may be periods with declining 
revenue as we experience competition for market share.

37

Royalties – Royalty revenue was $63.5 million in 2017 compared to $51.0 million in 2016 and $31.0 million in 2015. 
The increase was driven by higher sales of Herceptin SC and MabThera SC (RITUXAN HYCELA™ in the U.S.) by Roche 
and of HYQVIA by Baxalta. We recognize royalties on sales of the collaboration products by the collaborators in the quarter 
following the quarter in which the corresponding sales occurred. In general, we expect royalty revenue to increase in future 
periods reflecting expected increases in sales of collaboration products, although there may be periods with flat or declining 
royalty revenue as sales of products under collaborations vary. 

Revenues Under Collaborative Agreements – Revenues under collaborative agreements were as follows (in thousands): 

Upfront  license  fees,  license  fees  for  the  election  of 
additional 
license 
maintenance fees and amortization of deferred upfront 
and other license fees:

targets,  event-based  payments, 

BMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alexion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Janssen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baxalta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lilly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AbbVie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pfizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reimbursements for research and development services:
Roche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Janssen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baxalta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total revenues under collaborative agreements. . .

2017

Change

2016

Change

2015

$ 101,400
n/a
40,000
n/a
33,330
902 %
15,000
5,900 %
6 %
810
— (100)%
— (100)%
— (100)%

$ —
—
3,328
250
765
8,000
6,000
2,500
814 % 20,843

190,540

6,900
3,302
1,585
383
12,170
$ 202,710

(63)% 18,700
2,051
61 %
386
311 %
14 %
335
(43)% 21,472
379 % $ 42,315

n/a
n/a
2%
n/a

$ —
—
3,269
—
765
—
(68)% 25,000
(74)% 23,000
2,000
25 %
54,034
(61%)

2,556
632%
834
146 %
292
32%
284
18%
3,966
441%
(27%) $ 58,000

Revenue from license fees increased in 2017, compared to 2016 due to $171.4 million upfront license revenue for the 
2017 Roche, BMS and Alexion agreements, and $15.0 million for clinical milestones under the Janssen Collaboration. In 
2016, we recognized $15.5 million in license fee and milestone revenue in connection with the Lilly, AbbVie and Pfizer 
collaborations.  In  2015,  we  recognized  $48.0  million  in  license  fee  revenue  in  connection  with  the  Lilly  and AbbVie 
collaborations related to upfront payments. Revenue from upfront licenses fees, license fees for the election of additional 
targets, event-based payments, license maintenance fees and amortization of deferred upfront and other license fees vary 
from period to period based on our ENHANZE collaboration activity. We expect these revenues to continue to fluctuate in 
future periods based on our collaborators’ abilities to meet various clinical and regulatory milestones set forth in such 
agreements and our abilities to obtain new collaborative agreements.

Revenue from reimbursements for research and development services, including clinical supply of rHuPH20, decreased 
in  2017  compared  to  2016  mainly  due  to  a  decrease  in  services  provided  to  Roche  related  to  the  validation  of  a  new 
manufacturing facility, partially offset by an increase in services provided to Baxalta and an increase in clinical supply of 
rHuPH20 provided to Janssen. The validation of the new Roche facility was completed in the second quarter of 2017 and, 
therefore, we expect to continue to see a decrease in research and development service revenue associated with this project 
going forward. Revenue from reimbursements for research and development services increased in 2016 compared to 2015 
mainly due to services provided for the new manufacturing facility for Roche. Research and development services rendered 
by us on behalf of our collaborators are at the request of the collaborators; therefore, the amount of future revenues related 
to reimbursable research and development services is uncertain. We expect the non-reimbursement revenues under our 
collaborative agreements to continue to fluctuate in future periods based on our collaborators’ abilities to meet various 
clinical and regulatory milestones set forth in such agreements and our abilities to obtain new collaborative agreements.

38

Cost of Product Sales – Cost of product sales were $31.2 million in 2017 compared to $33.2 million in December 31, 
2016 and $29.2 million in 2015. The decrease of $2.0 million in cost of product sales in 2017 compared to 2016 was mainly 
due to a decrease in sales of bulk rHuPH20 to Roche. The increase of $4.0 million in cost of product sales in 2016 compared 
to 2015 was due to a $5.8 million increase in cost of product sales of bulk rHuPH20 due to an increase in sales to collaboration 
partners, partially offset by a $1.8 million decrease in Hylenex recombinant cost of product sales, due to a decrease in 
manufacturing costs.

Research and Development – Research and development expenses consist of external costs, salaries and benefits and 
allocation  of  facilities  and  other  overhead  expenses  related  to  research  manufacturing,  clinical  trials,  preclinical  and 
regulatory activities. Research and development expenses incurred were as follows (in thousands):

2017

Change

2016

Change

2015

Programs

PEGPH20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENHANZE collaborations and rHuPH20
   platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total research and development expenses . . . .

$ 123,932

15 % $108,102

43% $ 75,616

19,197
7,514
$ 150,643

(37)%
(39)%
—

30,398
12,342
$150,842

10,514
189%
7,106
74%
62% $ 93,236

Research and development expenses relating to our PEGPH20 program increased in 2017 by 15% compared to 2016, 
and increased in 2016 by 43% compared to 2015, primarily due to increased clinical trial activities. We expect these expenses 
to continue to increase in future periods reflecting expected increases in our PEGPH20 development activities. 

Research and development expenses relating to our ENHANZE collaborations and our rHuPH20 platform in 2017
decreased by 37%, compared to 2016, primarily due to a decrease in manufacturing expenses related to Roche, due to work 
associated  with  bringing  on-line  a  second  contract  manufacturing  facility. As  we  completed  the  validation  of  the  new 
manufacturing facility in the second quarter of 2017, we expect these expenses to continue to decrease going forward. The 
rHuPH20 platform includes research, development and manufacturing expenses related to our proprietary rHuPH20 enzyme. 
These expenses were not designated to a specific program at the time the expenses were incurred. Research and development 
expenses relating to our ENHANZE collaborations and our rHuPH20 platform in 2016 increased by 189% compared to 
2015,  primarily  due  to  a  $17.0  million  increase  in  manufacturing  expenses  related  to  bringing  on-line  the  new  Roche 
manufacturing facility. 

Research and development expenses related to other programs in 2017 decreased by 39% compared to 2016 primarily 
due to a decrease in preclinical development of HTI-1511 and PEG-ADA2. Research and development expenses related to 
other programs in 2016 increased by 74% compared to 2015, primarily due to expenses incurred in our preclinical product 
programs. 

Selling,  General  and  Administrative  –  Selling,  general  and  administrative  (SG&A)  expenses  increased  in  2017 
compared to 2016 by $8.0 million, or 17%, and increased in 2016 compared to 2015 by $5.8 million, or 15%, primarily due 
to increases in compensation expense including stock compensation. We expect SG&A expenses to increase moderately in 
future periods as our operations expand and we prepare for commercial launch.

Interest Expense – Interest expense included interest expense and amortization of the debt discount related to the 
long-term debt. Interest expense increased by $2.0 million in 2017 compared to 2016, and increased by $14.8 million in 
2016 as compared to 2015, primarily due to interest expense incurred on the Royalty-backed Loan we received in January 
2016.

Income Taxes – Income tax benefit was $1.4 million in 2017 compared to income tax expense of $1.2 million in 2016
and was primarily comprised of U.S. federal alternative minimum tax expense in the amount of $4.1 million offset by a 
U.S federal alternative minimum tax credit of $5.5 million. The U.S. federal AMT was eliminated via the Tax Cuts and Jobs 
Act that was enacted on December 22, 2017. The AMT credit carryovers will be used to offset regular tax liability for any 
taxable year beginning after 2017. If not utilized before 2022, any remaining AMT credit carryforward amount is fully 
refundable. The AMT credit carryforward of $5.5 million was recognized as a deferred tax asset at December 31, 2017 as 
realization is certain. For the years ended December 31, 2017 and 2016, we generated taxable income in the U.S., which 
was partially offset by utilizing net operating losses carried forward from earlier years. No income tax expense was recognized 
during the year ended December 31, 2015. 

39

 
Liquidity and Capital Resources

Our principal sources of liquidity are our existing cash, cash equivalents and available-for-sale marketable securities. 
As of December 31, 2017, we had cash, cash equivalents and marketable securities of $469.2 million. We will continue to 
have significant cash requirements to support product development activities. The amount and timing of cash requirements 
and cash on hand will depend on the progress and success of our clinical development programs, regulatory and market 
acceptance, the resources we devote to research and commercialization activities and the achievement of various milestones 
and royalties under our existing collaborative agreements.

We believe that our current cash, cash equivalents and marketable securities will be sufficient to fund our operations 
for at least the next twelve months. We expect to fund our operations going forward with existing cash resources, anticipated 
revenues from our existing collaborations and cash that we may raise through future transactions. We may raise cash through 
any  one  of  the  following  financing  vehicles:  (i) the  public  offering  of  securities;  (ii) new  collaborative  agreements; 
(iii) expansions  or  revisions  to  existing  collaborative  relationships;  (iv) private  financings;  (v) other  equity  or  debt 
financings; and/or (vi) monetizing assets.

In February 2017, we filed an automatic shelf registration statement on Form S-3 (Registration No. 333-216315) with 
the SEC, which allow us, from time to time, to offer and sell equity, debt securities and warrants to purchase any of such 
securities, either individually or in units. In May 2017, we completed an underwritten public offering pursuant to which we 
sold 11.5 million shares of common stock, generating $134.9 million in net proceeds, after deducting underwriting discounts 
and commissions and other offering expenses. We may, in the future, offer and sell additional equity, debt securities and 
warrants to purchase any of such securities, either individually or in units to raise capital to fund the continued development 
of our product candidates, the commercialization of our products or for other general corporate purposes. 

Our existing cash, cash equivalents and marketable securities may not be adequate to fund our operations until we 
become profitable, if ever. We cannot be certain that additional financing will be available when needed or, if available, 
financing will be obtained on favorable terms. If we are unable to raise sufficient funds, we may need to delay, scale back 
or eliminate some or all of our research and development programs, delay the launch of our product candidates, if approved, 
and/or restructure our operations. If we raise additional funds by issuing equity securities, substantial dilution to existing 
stockholders  could  result.  If  we  raise  additional  funds  by  incurring  debt  financing,  the  terms  of  the  debt  may  involve 
significant  cash  payment  obligations,  the  issuance  of  warrants  that  may  ultimately  dilute  existing  stockholders  when 
exercised and covenants that may restrict our ability to operate our business.

Cash Flows

Operating Activities

Net cash provided by operations was $134.1 million in 2017 compared to net cash used in operations of $50.4 million
in 2016. The increase in cash provided by operations was mainly due to an increase in operating income driven by license 
payments and milestones achieved and changes in working capital for the year ended December 31, 2017 compared to the 
corresponding period in the prior year. 

Net cash used in operations was $50.4 million in 2016 compared to $37.1 million in 2015. The $13.3 million increase 
in utilization of cash in operations was mainly due to an increase in operating losses compared to the prior year, partially 
offset by the timing of the collection of accounts receivable.

Investing Activities

Net cash used in investing activities was $163.7 million in 2017 compared to net cash used in investing activities of 
$76.8 million in 2016. The increase in net cash used in investing activities was primarily due to net purchases of marketable 
securities using cash provided by operating and financing activities. 

Net cash used in investing activities was $76.8 million in 2016 compared to net cash provided of $5.9 million in 2015. 
The change was primarily due to net purchases of marketable securities using the proceeds from the Royalty-backed Loan.

40

Financing Activities

Net cash provided by financing activities was $131.7 million in 2017, primarily due to $134.9 million in net proceeds 
from the sale of common stock in May 2017, compared to cash provided by financing activities of $150.6 million in 2016, 
when we drew net proceeds of $148.0 million on the Royalty-backed Loan. 

Net cash provided by financing activities was $150.6 million in 2016 compared to $13.1 million in 2015. Net cash 

provided by financing activities in 2015 consisted of $13.1 million in net proceeds from options exercised. 

Long-Term Debt

Royalty-backed Loan

In January 2016, through our wholly-owned subsidiary Halozyme Royalty LLC (Halozyme Royalty), we received a 
$150 million loan (the Royalty-backed Loan) pursuant to a credit agreement (the Credit Agreement) with BioPharma Credit 
Investments IV Sub, LP and Athyrium Opportunities II Acquisition LP (the Royalty-backed Lenders). Under the terms of 
the Credit Agreement, Halozyme Therapeutics, Inc. transferred to Halozyme Royalty the right to receive royalty payments 
from  the  commercial  sales  of  ENHANZE  products  owed  under  the  Roche  Collaboration  and  Baxalta  Collaboration 
(Collaboration Agreements). The royalty payments from the Collaboration Agreements will be used to repay the principal 
and interest on the loan (the Royalty Payments).  The Royalty-backed Loan bears interest at a per annum rate of 8.75% plus 
the three-month LIBOR rate. The three-month LIBOR rate is subject to a floor of 0.7% and a cap of 1.5%. The interest rate 
as of December 31, 2017 was 10.3%. The outstanding balance of the Royalty-backed Loan as of December 31, 2017 was 
$146.5 million. 

The Credit Agreement provides that none of the Royalty Payments were required to be applied to the Royalty-backed 
Loan prior to January 1, 2017, 50% of the Royalty Payments were required to be applied to the Royalty-backed Loan 
between January 1, 2017 and January 1, 2018 and thereafter all Royalty Payments must be applied to the Royalty-backed 
Loan. However, the amounts available to repay the Royalty-backed Loan are subject to caps of $13.75 million per quarter 
in 2017, $18.75 million per quarter in 2018, $21.25 million per quarter in 2019 and $22.5 million per quarter in 2020 and 
thereafter. Amounts available to repay the Royalty-backed Loan will be applied first, to pay interest and second, to repay 
principal on the Royalty-backed Loan. Any accrued interest that is not paid on any applicable quarterly payment date, as 
defined, will be capitalized and added to the principal balance of the Royalty-backed Loan on such date. Halozyme Royalty 
will be entitled to receive and distribute to Halozyme any Royalty Payments that are not required to be applied to the Royalty-
backed Loan or which are in excess of the foregoing caps. 

The final maturity date of the Royalty-backed Loan will be the earlier of (i) the date when principal and interest is 
paid in full, (ii) the termination of Halozyme Royalty’s right to receive royalties under the Collaboration Agreements, and 
(iii) December 31, 2050. Currently, we estimate that the loan will be repaid in the first quarter of 2020. This estimate could 
be adversely affected and the repayment period could be extended if future royalty amounts are less than currently expected. 
Under the terms of the Credit Agreement, at any time after January 1, 2019, Halozyme Royalty may, subject to certain 
limitations, prepay the outstanding principal of the Royalty-backed Loan in whole or in part, at a price equal to 105% of 
the outstanding principal on the Royalty-backed Loan, plus accrued but unpaid interest. The Royalty-backed Loan constitutes 
an obligation of Halozyme Royalty, and is non-recourse to Halozyme. Halozyme Royalty retains its right to the Royalty 
Payments following repayment of the loan. 

Oxford and SVB Loan and Security Agreement

In  June  2016,  we  entered  into  a  Loan  and  Security Agreement  (the  Loan Agreement)  with  Oxford  Finance  LLC 
(Oxford) and Silicon Valley Bank (SVB) (collectively, the Lenders), providing a senior secured loan facility of up to an 
aggregate principal amount of $70 million, comprising a $55.0 million draw in June 2016 and an additional $15.0 million 
tranche, which we had the option to draw during the second quarter of 2017 and did not exercise. The proceeds were partially 
used to pay the outstanding principal and final payment owed on a previous loan agreement with the Lenders. The remaining 
proceeds are being used for working capital and general business requirements. The Loan Agreement repayment schedule 
provides for interest only payments for the first 18 months, followed by consecutive equal monthly payments of principal 
and interest in arrears through the maturity date of January 1, 2021. The Loan Agreement provides for a final payment equal 
to 5.50% of the initial $55 million principal amount. The final payment is due when the Loan Agreement becomes due or 
upon the prepayment of the facility. We have the option to prepay the outstanding balance of the Loan Agreement in full, 

41

subject to a prepayment fee of 2% in the first year and 1% in the second year of the term loan. The outstanding term loan 
balance was $55.9 million as of December 31, 2017.

The Loan Agreement is secured by substantially all of the assets of the Company and its subsidiary, Halozyme, Inc., 
except that the collateral does not include any equity interests in Halozyme, Inc. and any intellectual property (including 
all licensing, collaboration and similar agreements relating thereto), and certain other excluded assets. The Loan Agreement 
contains customary representations, warranties and covenants by us, which covenants limit our ability to convey, sell, lease, 
transfer, assign or otherwise dispose of certain of our assets; engage in any business other than the businesses currently 
engaged in by us or reasonably related thereto; liquidate or dissolve; make certain management changes; undergo certain 
change of control events; create, incur, assume, or be liable with respect to certain indebtedness; grant certain liens; pay 
dividends and make certain other restricted payments; make certain investments; make payments on any subordinated debt; 
enter into transactions with any of our affiliates outside of the ordinary course of business or permit our subsidiaries to do 
the same; and make any voluntary prepayment of or modify certain terms of the Royalty-backed Loan. In addition, subject 
to  certain  exceptions,  we  are  required  to  maintain  with  SVB  our  primary  deposit  accounts,  securities  accounts  and 
commodities, and to do the same for our domestic subsidiary. 

The Loan Agreement also contains customary indemnification obligations and customary events of default, including, 
among other things, our failure to fulfill certain of our obligations under the Loan Agreement and the occurrence of a material 
adverse change which is defined as a material adverse change in our business, operations or condition (financial or otherwise), 
a material impairment of the prospect of repayment of any portion of the loan, a material impairment in the perfection or 
priority of the Lender’s lien in the collateral or in the value of such collateral or the occurrence of an event of default under 
the Royalty-backed Loan. In the event of default by us under the Loan Agreement, the Lenders would be entitled to exercise 
their remedies thereunder, including the right to accelerate the debt, upon which we may be required to repay all amounts 
then outstanding under the Loan Agreement, which could harm our financial condition.

Off-Balance Sheet Arrangements

As of December 31, 2017, we did not have any relationships with unconsolidated entities or financial partnerships, 
such as entities often referred to as structured finance or special purpose entities, which would have been established for 
the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. In addition, 
we did not engage in trading activities involving non-exchange traded contracts. As such, we are not materially exposed to 
any financing, liquidity, market or credit risk that could arise if we had engaged in such relationships.

42

Contractual Obligations

As  of  December 31,  2017,  future  minimum  payments  due  under  our  contractual  obligations  are  as  follows  (in 

thousands):

Payments Due by Period

Contractual Obligations(1)
Long-term debt, including current portion(2) . . . . . . .
Interest on long-term debt(3) . . . . . . . . . . . . . . . . . . .
Operating leases(4) . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third-party manufacturing obligations(5). . . . . . . . . .
Purchase obligations . . . . . . . . . . . . . . . . . . . . . . . . .
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total
$ 205,157
26,792
13,113
12,257
445
$ 257,764

Less than
1 Year
$ 77,211
16,914
2,415
7,507
386
$104,433

1-3 Years
$ 127,946
9,878
8,079
4,750
59
$ 150,712

_______________

More than
5 Years

4-5 Years
$

— $
—
2,619
—
—
$ 2,619

$

—
—
—
—
—
—

(1)  Does  not  include  milestone  or  contractual  payment  obligations  contingent  upon  the  achievement  of  certain 
milestones or events if the amount and timing of such obligations are unknown or uncertain. Our in-license 
agreement is cancelable by us with written notice within 90 days. We may be required to pay up to approximately 
$8.0 million in milestone payments, plus sales royalties, in the event that regulatory and commercial milestones 
under the in-license agreement are achieved. Also excludes contractual obligations already recorded on our 
consolidated balance sheet as current liabilities.

(2)  Long-term  debt  consists  of  the  Royalty-backed  Loan  and  the  Loan Agreement.  Obligations  include  future 
quarterly principal payments for the Royalty-backed Loan based on an estimate of future royalty amounts. This 
estimate could be adversely affected and the repayment period could be extended if future royalty amounts are 
less than currently expected. Obligations also include future quarterly principal payments and a final payment 
of $3.03 million for the Loan Agreement due in January 2021. 

(3) 

Interest on long-term debt includes future monthly interest payments for the Loan Agreement based on a fixed 
rate of 8.25%. Interest on long-term debt also includes quarterly interest payments on the Royalty-backed Loan, 
which bears interest at a per annum rate of 8.75% plus the three-month LIBOR rate. The three-month LIBOR 
rate is subject to a floor of 0.7% and a cap of 1.5%. Future interest obligations for the Royalty-backed Loan 
were estimated using rates in effect as of December 31, 2017. 

(4) 

Includes minimum lease payments related to leases of our office and research facilities and certain autos under 
non-cancelable operating leases.

(5)  We have contracted with third-party manufacturers for the supply of bulk rHuPH20 and fill/finish of Hylenex
recombinant. Under these agreements, we are required to purchase certain quantities each year during the terms 
of the agreements. The amounts presented represent our estimates of the minimum required payments under 
these agreements. 

Contractual obligations for purchases of goods or services include agreements that are enforceable and legally binding 
to us and that specify all significant terms, including fixed or minimum quantities to be purchased; fixed, minimum or 
variable price provisions; and the approximate timing of the transaction. For obligations with cancellation provisions, the 
amounts included in the preceding table were limited to the non-cancelable portion of the agreement terms or the minimum 
cancellation fee.

For certain restricted stock units and performance stock units granted, the number of shares issued on the date the 
restricted stock units vest is net of the minimum statutory withholding requirements that we pay in cash to the appropriate 
taxing authorities on behalf of our employees. The obligation to pay the relevant taxing authority is not included in the 
preceding  table,  as  the  amount  is  contingent  upon  continued  employment.  In  addition,  the  amount  of  the  obligation  is 
unknown, as it is based in part on the market price of our common stock when the awards vest.

The  expected  timing  of  payments  of  the  obligations  above  is  estimated  based  on  current  information. Timing  of 
payments and actual amounts paid may be different, depending on the time of receipt of goods or services, or changes to 
agreed-upon amounts for some obligations.

43

 
Our future capital uses and requirements depend on numerous forward-looking factors. These factors may include, 

but are not limited to, the following:

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

the rate of progress and cost of research and development activities;

the number and scope of our research activities;

the costs of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights;

our ability to establish and maintain product discovery and development collaborations, including scale-up 
manufacturing costs for our collaborators’ product candidates;

the amount of royalties from our collaborators;

the amount of product sales for Hylenex recombinant;

the costs of obtaining and validating additional manufacturers of Hylenex recombinant;

the effect of competing technological and market developments;

the costs of preparing for and launching a new commercial product;

the terms and timing of any collaborative, licensing and other arrangements that we may establish; and

the extent to which we acquire or in-license new products, technologies or businesses.

Critical Accounting Estimates

The discussion and analysis of our financial condition and results of operations are based on our consolidated financial 
statements, which have been prepared in accordance with U.S. generally accepted accounting principles, or U.S. GAAP. 
The preparation of our consolidated financial statements requires us to make estimates and judgments that affect the reported 
amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. We review 
our estimates on an ongoing basis. We base our estimates on historical experience and on various other assumptions that 
we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the 
carrying  values  of  assets  and  liabilities. Actual  results  may  differ  from  these  estimates  under  different  assumptions  or 
conditions. Our significant accounting policies are outlined in Note 2 to the Consolidated Financial Statements included in 
the Form 10-K. We believe the following accounting policies to be critical to the judgments and estimates used in the 
preparation of our consolidated financial statements.

44

Revenue Recognition

Methodology

Judgment and Uncertainties

For collaborative arrangements, we 
generally recognize revenues and income for 
each identified unit of accounting within the 
multiple element arrangements based on the 
nature and timing of the delivery process. 

Management performs detailed reviews of 
all of our significant contracts. At the 
inception of the arrangement, consideration 
is allocated to all identified units of 
accounting based on their relative selling 
price. On an ongoing basis, the units of 
accounting are evaluated against revenue 
recognition criteria.

Debt Classification

 The relative selling price for each
deliverable is determined using
vendor specific objective evidence
(“VSOE”) of selling price or third-
party evidence of selling price if
VSOE does not exist. If neither
VSOE nor third-party evidence of
selling price exists, we use our best
estimate of the selling price for the
deliverable.

Methodology

Judgment and Uncertainties

The short-term and long-term classification
of outstanding debt represents management's
best estimate of the timing of the amounts to
be repaid. These estimates are based on
contractual obligations, anticipated timing of
royalty payments received and changes in
LIBOR interest rates.

Royalty payments are estimated
using partner insight to the
marketplace, historical trends and
our knowledge of the therapeutic
space.

Effect if Actual Results Differ From
Assumptions

Changes in the allocation of the
sales price between delivered
and undelivered elements can
impact the timing of revenue
recognition but do not change
the total revenue recognized
under any agreement.

Effect if Actual Results Differ From
Assumptions

The short-term and long-term 
portion of the debts may change 
and the repayment term may be 
shortened or extended 
depending on the actual level of 
royalty payments received. The 
actual repayment period could 
vary materially from our 
estimate to the extent that 
royalty payments from our 
partners are lower than our 
current estimates, which could 
arise due to factors beyond our 
control, such as competitive 
factors, decreased market 
acceptance or a failure by our 
partners to successfully 
commercialize in territories 
where regulatory approval has 
been received. 

Currently, we do not believe that 
we have significant amount of 
risk relative to the repayment of 
the debt. A 10% reduction in the 
amount of anticipated royalties 
would not change our expected 
repayment period at maximum 
contractual interest rates. 

45

Share-Based Payments

Methodology

Judgment and Uncertainties

Effect if Actual Results Differ From
Assumptions

The Company maintains a Stock Incentive
Plan, which provides for share-based
payment awards, including stock options,
restricted stock and performance awards. We
determine the fair value of our stock option
awards and performance awards at the date
of grant using a Black-Scholes model. We
determine the fair value of our restricted
stock awards at the date of grant using the
closing market value of our common stock
on the date of grant.

Option-pricing models and 
generally accepted valuation 
techniques require management to 
make assumptions and to apply 
judgment to determine the fair value 
of our awards. These assumptions 
and judgments include estimating 
the future volatility of our stock 
price, expected dividend yield and 
future employee stock option 
exercise behaviors. Changes in these 
assumptions can materially affect 
the fair value estimate. 

We do not currently believe 
there is a reasonable likelihood 
that there will be a material 
change in estimates or 
assumptions we use to 
determine stock-based 
compensation expense. 
However, if actual results are 
not consistent with our estimates 
or assumptions, we may be 
exposed to changes in share-
based compensation expense 
that could be material. 

Our performance awards require 
management to make assumptions 
regarding the likelihood of 
achieving long-term Company 
goals.

Research and Development Expenses - Clinical Trial Accruals

Methodology

Judgment and Uncertainties

All of our clinical trials have been executed
with support from contract research
organizations, (CROs), and other vendors.
We accrue costs for clinical trial activities
performed by CROs based upon the
estimated amount of work completed on
each trial.

For clinical trial expenses, the 
significant factors used in 
estimating accruals include the 
number of patients enrolled, the 
activities to be performed for each 
patient, the number of active clinical 
sites, and the duration for which the 
patients will be enrolled in the trial. 
We monitor patient enrollment 
levels and related activities to the 
extent possible through internal 
reviews, correspondence with CROs 
and review of contractual terms. 

If actual results are not 
consistent with the assumptions 
used, the share-based 
compensation expense reported 
in our financial statements may 
not be representative of the 
actual economic cost of the 
share-based compensation. A 
10% change in our share-based 
compensation expense for the 
year ended December 31, 2017, 
would have affected pre-tax 
earnings by approximately $3.1 
million in 2017. 

Effect if Actual Results Differ From
Assumptions

We base our estimates on the
best information available at the
time. However, additional
information may become
available to us, which may allow
us to make a more accurate
estimate in future periods. If we
do not identify costs that we
have begun to incur or if we
underestimate or overestimate
the level of services performed
or the costs of these services,
our actual expenses could differ
from our estimates. There were
no such significant changes
during the years ended
December 31, 2017, 2016 or
2015.

Recent Accounting Pronouncements

Refer to Note 2, Summary of Significant Accounting Policies, of our consolidated financial statements for a discussion 

of recent accounting pronouncements and their effect, if any, on us.

46

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk 

As of December 31, 2017, our cash equivalents and marketable securities consisted of investments in money market 
funds,  U.S.  Treasury  securities,  corporate  debt  obligations  and  commercial  paper.  These  investments  were  made  in 
accordance with our investment policy which specifies the categories, allocations, and ratings of securities we may consider 
for investment. The primary objective of our investment activities is to preserve principal while at the same time maximizing 
the income we receive without significantly increasing risk. Some of the financial instruments that we invest in could be 
subject to market risk. This means that a change in prevailing interest rates may cause the value of the instruments to 
fluctuate. For example, if we purchase a security that was issued with a fixed interest rate and the prevailing interest rate 
later rises, the value of that security will probably decline. Based on our current investment portfolio as of December 31, 
2017, we do not believe that our results of operations would be materially impacted by an immediate change of 10% in 
interest rates. 

We do not hold or issue derivatives, derivative commodity instruments or other financial instruments for speculative 
trading purposes. Further, we do not believe our cash, cash equivalents and marketable securities have significant risk of 
default or illiquidity. We made this determination based on discussions with our investment advisors and a review of our 
holdings. While we believe our cash, cash equivalents and marketable securities do not contain excessive risk, we cannot 
provide absolute assurance that in the future our investments will not be subject to adverse changes in market value. All of 
our cash equivalents and marketable securities are recorded at fair market value.

Item 8.  Financial Statements and Supplementary Data

Our financial statements are annexed to this report beginning on page F-1.

Item 9.  Changes In and Disagreements with Accountants on Accounting and Financial Disclosure

None.

47

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed 
in our Exchange Act reports is recorded, processed, summarized and reported within the timelines specified in the Securities 
and  Exchange  Commission’s  rules  and  forms,  and  that  such  information  is  accumulated  and  communicated  to  our 
management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decision 
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 only provide reasonable assurance of 
achieving the desired control objectives, and 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.

Under the supervision and with the participation of our management, including our principal executive officer and 
principal financial officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined 
under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended. Based on this evaluation, our 
principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were 
effective as of the end of the period covered by this Annual Report on Form 10-K.

Changes in Internal Control Over Financial Reporting

There have been no significant changes in our internal control over financial reporting that occurred during the quarter 
ended December 31, 2017 that have materially affected, or are reasonably likely to materially affect, our internal control 
over financial reporting.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. 
Internal control over financial reporting is defined in Rule 13a-15(f) and Rule 15d-15(f) promulgated under the Exchange 
Act as a process designed by, or under the supervision of, our principal executive and principal financial officers and effected 
by our board of directors, management and other personnel, 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 and includes those policies and procedures that:

• 

• 

• 

Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and 
dispositions of our assets;

Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements 
in accordance with generally accepted accounting principles, and that receipts and expenditures are being made only 
in accordance with authorizations of our management and directors; and

Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition 
of our assets that could have a material effect on our financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2017. 
In making this assessment, our management used the criteria set forth by the Committee of Sponsoring Organizations of 
the Treadway Commission (COSO) in Internal Control-Integrated Framework (2013 framework) (the COSO criteria). Based 
on our assessment, management concluded that, as of December 31, 2017, our internal control over financial reporting is 
effective based on the COSO criteria. The independent registered public accounting firm that audited the consolidated 
financial statements that are included in this Annual Report on Form 10-K has issued an audit report on the effectiveness 
of our internal control over financial reporting as of December 31, 2017. The report appears below.

48

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders
Halozyme Therapeutics, Inc.

Opinion on Internal Control over Financial Reporting

We have audited Halozyme Therapeutics, Inc.’s internal control over financial reporting as of December 31, 2017, 
based  on  criteria  established  in  Internal  Control  -  Integrated  Framework  issued  by  the  Committee  of  Sponsoring 
Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Halozyme Therapeutics, 
Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 
2017, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2017 and 2016, and the related 
consolidated statements of operations, comprehensive loss, cash flows, and stockholders’ equity (deficit) for each of the 
three years in the period ended December 31, 2017 , and the related notes and the financial statement schedule listed in the 
Index at Item 15(a) and our report dated February 20, 2018 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for 
its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s 
Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal 
control over financial reporting based on our audit. We are a public accounting firm registered with the 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  effective  internal  control  over  financial  reporting  was 
maintained in all material respects. 

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a 
material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the 
assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our 
audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed 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. A company’s internal control over financial reporting includes those policies and 
procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions 
and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary 
to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts 
and expenditures of the company are being made only in accordance with authorizations of management and directors of 
the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, 
use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
Also,  projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become 
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

                                                                                                   /s/    Ernst & Young LLP

San Diego, California
February 20, 2018

49

Item 9B.  Other Information

None.

PART III

Item 10.  Directors, Executive Officers and Corporate Governance

The information required by this item regarding directors is incorporated by reference to our definitive Proxy Statement 
(the Proxy Statement) to be filed with the Securities and Exchange Commission in connection with our 2018 Annual Meeting 
of Stockholders under the heading “Election of Directors.” The information required by this item regarding compliance 
with Section 16(a) of the Securities Exchange Act of 1934, as amended, is incorporated by reference to the information 
under  the  caption  “Compliance  with  Section 16(a)  of  the  Exchange Act”  to  be  contained  in  the  Proxy  Statement. The 
information required by this item regarding our code of ethics is incorporated by reference to the information under the 
caption “Code of Conduct and Ethics and Corporate Governance Guidelines” to be contained in the Proxy Statement. The 
information required by this item regarding our audit committee is incorporated by reference to the information under the 
caption “Board Meetings and Committees—Audit Committee” to be contained in the Proxy Statement. The information 
required by this item regarding material changes, if any, to the process by which stockholders may recommend nominees 
to our board of directors is incorporated by reference to the information under the caption “Board Meetings and Committees
—Nominating and Governance Committee” to be contained in the Proxy Statement.

Executive Officers

Helen  I.  Torley,  M.B.  Ch.  B.,  M.R.C.P.  (55),  President,  Chief  Executive  Officer  and  Director.  Dr. Torley  joined 
Halozyme in January 2014 as President and Chief Executive Officer and as a member of Halozyme’s Board of Directors. 
Throughout her career, Dr. Torley has led several successful product launches, including Kyprolis®, Prolia®, Sensipar®, 
and Miacalcin®. Prior to joining Halozyme, Dr. Torley served as Executive Vice President and Chief Commercial Officer 
for  Onyx  Pharmaceuticals  (Onyx)  from August  2011  to  December  2013  overseeing  the  collaboration  with  Bayer  on 
Nexavar® and Stivarga® and the U.S. launch of Kyprolis. She was responsible for the development of Onyx's commercial 
capabilities in ex-US markets and in particular, in Europe. Prior to Onyx, Dr. Torley spent 10 years in management positions 
at Amgen Inc., most recently serving as Vice President and General Manager of the US Nephrology Business Unit from 
2003 to 2009 and the U.S. Bone Health Business Unit from 2009 to 2011. From 1997 to 2002, she held various senior 
management positions at Bristol-Myers Squibb, including Regional Vice President of Cardiovascular and Metabolic Sales 
and Head of Cardiovascular Global Marketing. She began her career at Sandoz/Novartis, where she ultimately served as 
Vice President of Medical Affairs, developing and conducting post-marketing clinical studies across all therapeutic areas, 
including  oncology.  Within  the  past  five  years,  Dr.  Torley  served  on  the  board  of  directors  of  Relypsa,  Inc.,  a 
biopharmaceutical  company.  Before  joining  the  industry,  Dr.  Torley  was  in  medical  practice  as  a  senior  registrar  in 
rheumatology at the Royal Infirmary in Glasgow, Scotland. Dr. Torley received her Bachelor of Medicine and Bachelor of 
Surgery degrees (M.B. Ch.B.) from the University of Glasgow and is a Member of the Royal College of Physicians (M.R.C.P).

Laurie D. Stelzer (50), Senior Vice President, Chief Financial Officer. Ms. Stelzer joined Halozyme in June 2015 as 
Senior Vice President, Chief Financial Officer. Prior to joining Halozyme, Ms. Stelzer served from April 2014 to January 
2015  as  the  Senior  Vice  President  of  Finance  supporting  R&D,  Technical  Operations  and  M&A  at  Shire,  Inc.,  a 
biopharmaceutical company. Prior to that she was the Division CFO for the Regenerative Medicine Division and the Head 
of Investor Relations at Shire from March 2012 to April 2014. Prior to Shire, Ms. Stelzer held positions of increasing 
responsibility for 15 years at Amgen, Inc., a biopharmaceutical company, including Interim Treasurer, Head of Emerging 
Markets Expansion, Executive Director of Global Commercial Finance and Head of Global Accounting. Early in her career, 
she held various finance and accounting positions in the real estate and banking industries. Ms. Stelzer received her MBA 
from the Anderson School at the University of California, Los Angeles, and a Bachelor of Science in Accounting from 
Arizona State University.

50

Harry J. Leonhardt, Esq. (61), Senior Vice President, General Counsel, Chief Compliance Officer and Corporate 
Secretary.  Mr. Leonhardt joined Halozyme in April 2015 as Senior Vice President, General Counsel, Chief Compliance 
Officer  and  Corporate  Secretary.  Mr.  Leonhardt  brings  more  than  30  years  of  executive  management,  corporate  legal, 
intellectual property, compliance, business development and mergers and acquisitions experience to Halozyme, with an 
extensive background in the biotechnology industry. Prior to joining Halozyme, Mr. Leonhardt was an arbitrator before the 
International Centre for Dispute Resolution and a consultant in the biotechnology industry from January 2013 to April 2015. 
He served as Senior Vice President, Legal and Compliance, and Corporate Secretary at Amylin Pharmaceuticals, Inc., a 
biotechnology company, from September 2011 to January 2013 and previously served in other senior management legal 
positions  at Amylin  since  September  2007.  Prior  to Amylin,  he  served  as  Senior Vice  President,  General  Counsel  and 
Corporate Secretary at Senomyx, Inc. from September 2003 to September 2007. From February 2001 to September 2003, 
Mr. Leonhardt was Executive Vice President, General Counsel and Corporate Secretary at Genoptix, Inc. and from July 
1996  to  November  2000,  he  served  as Vice  President  and  then  Senior Vice  President,  General  Counsel  and  Corporate 
Secretary at Nanogen, Inc. Prior to Nanogen, Mr. Leonhardt held positions of increasing responsibility at Allergan, Inc. 
including Chief Litigation Counsel and General Counsel for European Operations. Early in his career, he was an attorney 
at Lyon & Lyon LLP where he represented a number of prominent clients in the biotech, pharmaceutical and consumer 
products industries. Mr. Leonhardt received a B.S. in Pharmacy from the University of the Sciences and a Juris Doctorate 
from the University of Southern California School of Law. 

Item 11.  Executive Compensation

The information required by this item is incorporated by reference to the information under the caption “Executive 

Compensation” to be contained in the Proxy Statement.

Item 12.  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Other than as set forth below, the information required by this item is incorporated by reference to the information 
under the caption “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters” 
to be contained in the Proxy Statement.

Equity Compensation Plan Information

The following table summarizes our compensation plans under which our equity securities are authorized for 

issuance as of December 31, 2017:

Plan Category
Equity compensation plans approved by stockholders (1) . . .
Equity compensation plans not approved by stockholders. .

_____________________

Number of
Shares to be
Issued upon
Exercise of
Outstanding
Options
and Restricted 
Stock Units
(a)
13,023,641
—
13,023,641

(2)

Weighted 
Average
Exercise Price
of Outstanding
Options
(b)
$12.24
—
$12.24

Number of Shares
Remaining Available 
for Future Issuance
under Equity
Compensation
Plans (Excluding
Shares Reflected 
in Column (a))
(c)
6,552,249
—
6,552,249

(1)  Represents stock options, restricted stock units, and performance restricted stock units under the Amended and 

Restated 2011 Stock Plan, 2008 Stock Plan and 2006 Stock Plan.

(2)  This amount does not include restricted stock units and performance restricted stock units as there is no exercise 

price for such units.

51

 
 
Item 13.  Certain Relationships and Related Transactions, and Director Independence

The information required by this item is incorporated by reference to the information under the caption “Certain 
Relationships and Related Transactions” and “Corporate Governance - Director Independence” to be contained in the 
Proxy Statement.

Item 14.  Principal Accounting Fees and Services

The information required by this item is incorporated by reference to the information under the caption “Principal 

Accounting Fees and Services” to be contained in the Proxy Statement.

PART IV

Item 15.  Exhibits and Financial Statement Schedules

(a) 

Documents filed as part of this report.

1.   Financial Statements 

Report of Independent Registered Public Accounting Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Balance Sheets at December 31, 2017 and 2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Operations for Each of the Years Ended
   December 31, 2017, 2016 and 2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Comprehensive Income (Loss) for Each of the Years Ended
   December 31, 2017, 2016 and 2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Cash Flows for Each of the Years Ended
   December 31, 2017, 2016 and 2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Stockholders’ Equity (Deficit) for Each of the Years Ended
   December  31, 2017, 2016 and 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Notes to the Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

   Page
F-1

F-2

F-3

F-4

F-5

F-6

F-7

2.   List of all Financial Statement schedules.

The following financial statement schedule of Halozyme Therapeutics, Inc. is filed as part of this Annual Report 
on  Form  10-K  and  should  be  read  in  conjunction  with  the  consolidated  financial  statements  of  Halozyme 
Therapeutics, Inc. 

Schedule II: Valuation and Qualifying Accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page
F-40

All other schedules are omitted because they are not applicable or the required information is shown in the Financial 
Statements or notes thereto. 

3.   List of Exhibits required by Item 601 of Regulation S-K. See part (b) below.

52

  
  
  
  
  
  
  
(b) 

Exhibits.

Exhibit Title

Herewith

Form

File No.

Date Filed

Incorporated by Reference

Filed

Composite Certification of Incorporation . . . . . . . . . . . . . . . . . . . . . .

10-Q

001-32335

8/7/2013

Bylaws, as amended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-K

001-32335 12/19/2016

License Agreement between University of Connecticut and 
Registrant, dated November 15, 2002 . . . . . . . . . . . . . . . . . . . . . . . . .

First Amendment to the License Agreement between University of 
Connecticut and Registrant, dated January 9, 2006 . . . . . . . . . . . . . .

SB-2

333-114776 4/23/2004

8-K

001-32335

1/12/2006

Halozyme Therapeutics, Inc. 2006 Stock Plan . . . . . . . . . . . . . . . . . .

8-K

001-32335

3/24/2006

Form of Stock Option Agreement (2006 Stock Plan) . . . . . . . . . . . . .

10-Q

001-32335

8/8/2006

Form of Restricted Stock Agreement (2006 Stock Plan) . . . . . . . . . .

10-Q

001-32335

8/8/2006

Halozyme Therapeutics, Inc. 2008 Stock Plan . . . . . . . . . . . . . . . . . .

8-K

001-32335

3/19/2008

Form of Stock Option Agreement (2008 Stock Plan) . . . . . . . . . . . . .

10-Q

001-32335

8/7/2009

Form of Restricted Stock Agreement (2008 Stock Plan) . . . . . . . . . .

10-Q

001-32335

8/7/2009

Exhibit

Number

3.1

3.2

10.1

10.2

10.3#

10.4#

10.5#

10.6#

10.7#

10.8#

10.9#

Halozyme Therapeutics, Inc. 2011 Stock Plan (as amended through 
May 4, 2016) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.10#

Form of Stock Option Agreement (2011 Stock Plan) . . . . . . . . . . . . .

10.11#

10.12#

10.13#

Form of Stock Option Agreement for Executive Officers (2011 
Stock Plan). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Form of Restricted Stock Units Agreement for Officers (2011 Stock 
Plan). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Form of Restricted Stock Award Agreement for Officers (2011 
Stock Plan). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.14#

Form of Restricted Stock Units Agreement (2011 Stock Plan). . . . . .

10.15#

Form of Restricted Stock Award Agreement (2011 Stock Plan) . . . . .

10.16#

10.17#

10.18#

10.19#

Form of Stock Option Agreement (2011 Stock Plan -grants made on 
or after 11/4/2015) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Form of Restricted Stock Units Agreement (2011 Stock Plan - 
grants made on or after 11/4/2015) . . . . . . . . . . . . . . . . . . . . . . . . . . .

Form of Restricted Stock Award Agreement (2011 Stock Plan - 
grants made on or after 11/4/2015) . . . . . . . . . . . . . . . . . . . . . . . . . . .

Form of Restricted Stock Units Agreement (2011 Plan - grants 
made on or after 2/22/2017) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DEF-14
A

8-K

8-K

001-32335

3/23/2016

001-32335

5/6/2011

001-32335

5/6/2011

10-Q

001-32335

8/10/2015

10-Q

001-32335

8/10/2015

8-K

8-K

001-32335

5/6/2011

001-32335

5/6/2011

10-Q

001-32335

11/9/2015

10-Q

001-32335

11/9/2015

10-Q

001-32335

11/9/2015

10-K

001-32335

2/28/2017

10.20#

Form of Indemnity Agreement for Directors and Executive Officers.

8-K

001-32335 12/20/2007

53

Exhibit

Number

Exhibit Title

Herewith

Form

File No.

Date Filed

Incorporated by Reference

Filed

10.21#

Severance Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-Q

001-32335

5/9/2008

10.22#

Form of Amended and Restated Change In Control Agreement with 
Officer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-Q

001-32335

11/9/2015

10.23

10.24

10.25

10.26

10.27

10.28

10.29

Lease (11404 and 11408 Sorrento Valley Road), effective as of June 
10, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

First Amendment to Lease (11404 and 11408 Sorrento Valley 
Road), dated June 30, 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amended and Restated Lease (11388 Sorrento Valley Road), 
effective as of June 10, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

First Amendment to Amended and Restated Lease (11388 Sorrento 
Valley Road), dated June 30, 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-K

001-32335

6/16/2011

8-K

001-32335

7/5/2017

8-K

001-32335

6/16/2011

8-K

001-32335

7/5/2017

Lease (11436 Sorrento Valley Road), effective as of April 2013 . . . .

10-K

001-32335

3/1/2013

First Modification to Lease (11436 Sorrento Valley Road). . . . . . . . .

10-Q

001-32335

5/8/2013

Second Modification to Lease (11436 Sorrento Valley Road), dated 
June 30, 2017. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-K

001-32335

7/5/2017

10.30*

Credit Agreement, dated December 30, 2015 . . . . . . . . . . . . . . . . . . .

10-K

001-32335

2/29/2016

10.31#

Halozyme Therapeutics, Inc. Executive Incentive Plan . . . . . . . . . . .

DEF-14
A

001-32335

3/23/2016

10.32

10.33

10.34

10.35#

10.36#

21.1

23.1

31.1

31.2

Loan and Security Agreement, dated June 7, 2016 . . . . . . . . . . . . . . .

10-Q

001-32335

8/9/2016

Consent, Release, and First Amendment to Loan and Security 
Agreement, dated December 21, 2016 . . . . . . . . . . . . . . . . . . . . . . . .

10-K

001-32335

2/28/2017

Consent, Release, and Second Amendment to Loan and Security 
Agreement, dated November 21, 2017 . . . . . . . . . . . . . . . . . . . . . . . .

X

Transition Services Agreement and General Release of Claims, 
dated May 8, 2017, and Consulting Agreement, dated May 9. 2017, 
by and between the Registrant and Dr. Athena Countouriotis. . . . . . .

Transition Services Agreement and General Release of Claims, 
dated September 29, 2017, and Consulting Agreement, dated 
September 30, 2017, by and between the Registrant and Mark J. 
Gergen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Subsidiaries of Registrant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consent of Independent Registered Public Accounting Firm . . . . . . .

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) 
and 15d-14(a) of the Securities Exchange Act of 1934, as amended .

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) 
and 15d-14(a) of the Securities Exchange Act of 1934, as amended .

X

X

X

X

8-K

001-32335 5/9/2017

8-K

001-32335 9/29/2017

54

Exhibit Title

Herewith

Form

File No.

Date Filed

Incorporated by Reference

Filed

Exhibit

Number

32

Certification of Chief Executive Officer and Chief Financial Officer 
pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the 
Sarbanes-Oxley Act of 2002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

101.INS XBRL Instance Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

101.SCH XBRL Taxonomy Extension Schema . . . . . . . . . . . . . . . . . . . . . . . . .

101.CAL XBRL Taxonomy Extension Calculation Linkbase. . . . . . . . . . . . . . .

101.DEF XBRL Taxonomy Extension Definition Linkbase. . . . . . . . . . . . . . . .

101.LAB XBRL Taxonomy Extension Label Linkbase . . . . . . . . . . . . . . . . . . .

101.PRE XBRL Taxonomy Presentation Linkbase . . . . . . . . . . . . . . . . . . . . . .

_______________

X

X

X

X

X

X

X

*

#

Confidential treatment has been granted (or requested) for certain portions of this exhibit. These portions have 
been omitted from this agreement and have been filed separately with the Securities and Exchange Commission.

Indicates management contract or compensatory plan or arrangement.

(c) 

Financial Statement Schedules.  See Item 15(a) 2 above.

Item 16.  Form 10-K Summary

None.

55

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.

SIGNATURES

Date:

February 20, 2018

Halozyme Therapeutics, Inc.,
a Delaware corporation

By:

  /s/    Helen I. Torley, M.B. Ch.B., M.R.C.P.
Helen I. Torley, M.B. Ch.B., M.R.C.P.
President and Chief Executive Officer

POWER OF ATTORNEY

Know all persons by these presents, that each person whose signature appears below constitutes and appoints Helen 
I. Torley and Laurie D. Stelzer, and each of them, as his true and lawful attorneys-in-fact and agents, with full power of 
substitution and resubstitution, for him and in his name, place, and stead, in any and all capacities, to sign any and all 
amendments  to  this Annual  Report,  and  to  file  the  same,  with  all  exhibits  thereto,  and  other  documents  in  connection 
therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, 
full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection 
therewith, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming that all 
said attorneys-in-fact and agents, or any of them or their or his substitute or substituted, may lawfully do or cause to be 
done by virtue thereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report has been signed below by 

the following persons on behalf of the Registrant and in the capacities and on the dates indicated. 

Signature

Title

Date

/s/    Helen I. Torley, M.B. Ch.B., M.R.C.P.
       Helen I. Torley, M.B. Ch.B., M.R.C.P.

President and Chief Executive Officer
 (Principal Executive Officer), Director

  February 20, 2018

/s/   Laurie D. Stelzer

       Laurie D. Stelzer

/s/    Connie L. Matsui

       Connie L. Matsui

/s/   Jean-Pierre Bizzari
     Jean-Pierre Bizzari

/s/    James M. Daly

       James M. Daly

/s/    Jeffrey W. Henderson

       Jeffrey W. Henderson

/s/    Kenneth J. Kelley

       Kenneth J. Kelley

/s/    Randal J. Kirk

       Randal J. Kirk

/s/    Matthew L. Posard

       Matthew L. Posard

   Senior Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)

  February 20, 2018

Chair of the Board of Directors

  February 20, 2018

Director

Director

Director

Director

Director

Director

56

February 20, 2018

  February 20, 2018

  February 20, 2018

  February 20, 2018

  February 20, 2018

February 20, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
  
  
  
  
  
Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders
Halozyme Therapeutics, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Halozyme Therapeutics, Inc. (the Company) as 
of December 31, 2017 and 2016, and the related consolidated statements of operations, comprehensive loss, cash flows, 
and stockholders’ equity (deficit) for each of the three years in the period ended December 31, 2017, and the related notes 
and the financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the “consolidated financial 
statements”). In our opinion, the consolidated financial statements referred to above, present fairly, in all material respects, 
the financial position of the Company at December 31, 2017 and 2016, and the results of its operations and its cash flows 
for each of the three years in the period ended December 31, 2017, in conformity with U.S. generally accepted accounting 
principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States)  (PCAOB), the  Company’s  internal  control  over  financial  reporting  as  of  December 31,  2017,  based  on  criteria 
established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway 
Commission (2013 framework) and our report dated February 20, 2018 expressed an unqualified opinion thereon.

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 audits. We are a public accounting firm registered with the 
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 audits 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. Our audits 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 audits 
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 audits provide a reasonable basis for our opinion.

We have served as the Company’s auditor since 2006.

/s/    Ernst & Young LLP

San Diego, California
February 20, 2018 

F-1

 
 
 
 
 
 
 HALOZYME THERAPEUTICS, INC.
CONSOLIDATED BALANCE SHEETS
(In thousands, except per share amounts)

December 31,
2017

December 31,
2016

Current assets:

ASSETS

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marketable securities, available-for-sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts receivable, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restricted cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)

Current liabilities:

Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue, current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current portion of long-term debt, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue, net of current portion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other long-term liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commitments and contingencies (Note 9)
Stockholders’ equity (deficit):

Preferred stock - $0.001 par value; 20,000 shares authorized; no shares 
     issued and outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common stock - $0.001 par value; 200,000 shares authorized; 142,789 and 
    129,502 shares issued and outstanding at December 31, 2017 and 2016, 
    respectively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated deficit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total stockholders’ equity (deficit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities and stockholders’ equity (deficit). . . . . . . . . . . . . . . . . . . . . . .

$

$

$

$

$

$

$

168,740
300,474
22,133
5,146
13,879
510,372
3,520
5,553
500
519,945

7,948
39,601
6,568
77,211
131,328
54,297
125,140
814

66,764
138,217
15,680
14,623
21,248
256,532
4,264
219
500
261,515

3,578
28,821
4,793
17,393
54,585
39,825
199,228
358

—

—

143
731,044
(450)
(522,371)
208,366
519,945

$

130
552,737
(6)
(585,342)
(32,481)
261,515

See accompanying notes to consolidated financial statements.

F-2

HALOZYME THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share amounts)

Revenues:

Product sales, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Royalties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Revenues under collaborative agreements . . . . . . . . . . . . . . . . . . .

Total revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating expenses:

Cost of product sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Research and development. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selling, general and administrative . . . . . . . . . . . . . . . . . . . . . . . .

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other income (expense):

Investment and other income, net . . . . . . . . . . . . . . . . . . . . . . . . .

Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income (loss) before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income tax (benefit) expense. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income (loss). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income (loss) per share: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$
$

Year Ended December 31,

2017

2016

2015

50,396

63,507

202,710

316,613

31,152

150,643

53,816

235,611

81,002

2,592
(21,984)
61,610
(1,361)
62,971

0.46
0.45

$

$

$
$

53,392

50,984

42,315

146,691

33,206

150,842

45,853

229,901
(83,210)

1,326
(19,977)
(101,861)
1,162
(103,023)

(0.81)
(0.81)

$

$

$
$

46,082

30,975

58,000

135,057

29,245

93,236

40,028

162,509
(27,452)

422
(5,201)
(32,231)
—
(32,231)

(0.25)
(0.25)

Shares used in computing net income (loss) per share:. . . . . . . . . . . . .
Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

136,419
139,068

127,964
127,964

126,704
126,704

See accompanying notes to consolidated financial statements.

F-3

 
HALOZYME THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(In thousands)

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

62,971

$

Other comprehensive income (loss):

2017

2016
(103,023)

Unrealized (loss) gain on marketable securities . . . . . . . . . . . .

Foreign currency translation adjustment . . . . . . . . . . . . . . . . . .

Total comprehensive income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

(430)
(14)
62,527

93

—
(102,930)

$

2015
(32,231)

(58)
—
(32,289)

$

$

Year Ended December 31,

See accompanying notes to consolidated financial statements.

F-4

HALOZYME THERAPEUTICS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)

Operating activities:

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income (loss) to net cash provided
by (used in) operating activities:

Share-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payment-in-kind interest expense on long-term debt . . . . . . .
(Accretion of discounts) amortization of premiums on
marketable securities, net . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loss on disposal of equipment . . . . . . . . . . . . . . . . . . . . . . . .
Deferral of unearned revenue . . . . . . . . . . . . . . . . . . . . . . . . .
Recognition of deferred revenue . . . . . . . . . . . . . . . . . . . . . . .
Deferral of rent expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recognition of deferred rent . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changes in operating assets and liabilities:

Accounts receivable, net . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other assets . . . . . . . . . . . . . . . . . .
Accounts payable and accrued expenses . . . . . . . . . . . . .
Net cash provided by (used in) operating activities. . . . . . . . . . . . . . . .
Investing activities:

Purchases of marketable securities . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from maturities of marketable securities. . . . . . . . . . . . .
Purchases of property and equipment. . . . . . . . . . . . . . . . . . . . . . .
Net cash (used in) provided by investing activities . . . . . . . . . . . . . . . .
Financing activities:

Proceeds from issuance of common stock, net. . . . . . . . . . . . . . . .
Proceeds from issuance of long-term debt, net. . . . . . . . . . . . . . . .
Repayment of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of common stock under equity incentive
plans, net of taxes paid related to net share settlement. . . . . . . . . .

Net cash provided by financing activities . . . . . . . . . . . . . . . . . . . . . . .
Net increase (decrease) in cash, cash equivalents and restricted cash. .
Cash, cash equivalents and restricted cash at beginning of period . . . .
Cash, cash equivalents and restricted cash at end of period . . . . . . . . .

Supplemental disclosure of cash flow information:

Interest paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income taxes paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental disclosure of non-cash investing and financing activities:
Amounts accrued for purchases of property and equipment . . . . . . . .

$

$
$

$

Year Ended December 31,

2017

2016

2015

$

62,971

$

(103,023)

$

(32,231)

30,670
2,161
1,761
—

(303)
46
22,759
(6,512)
13
(185)
(16)

(6,453)
9,477
2,035
15,629
134,053

(398,187)
235,805
(1,350)
(163,732)

134,874
—
(15,995)

12,776
131,655
101,976
67,264
169,240

20,295
3,015

189

$

$
$

$

25,585
2,410
2,896
13,184

552
8
701
(9,304)
—
(370)
—

16,730
(5,134)
5,626
(244)
(50,383)

(155,412)
81,783
(3,137)
(76,766)

—
203,006
(54,250)

1,865
150,621
23,472
43,792
67,264

3,886
1,441

75

$

$

$
$

$

20,838
1,677
1,243
879

—
8
4,379
(5,789)
441
(276)
—

(23,261)
(3,083)
(15,774)
13,866
(37,083)

(71,482)
79,730
(2,360)
5,888

—
—
—

13,098
13,098
(18,097)
61,889
43,792

3,775
—

473

See accompanying notes to consolidated financial statements.

F-5

 
HALOZYME THERAPEUTICS, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (DEFICIT)
(in thousands)

Common Stock

Shares

Amount

Additional
Paid-In
Capital

Accumulated
Other
Comprehensive
Income (Loss)

Accumulated
Deficit

Total
Stockholders’
Equity 
(Deficit)

BALANCE AT JANUARY 1, 2015 . . . . . .

125,721

$

126

$ 491,694

$

(41)

$

(450,427)

$

Share-based compensation expense . . . . . .
Issuance of common stock pursuant to 
exercise of stock options and vesting of 
restricted stock units, net. . . . . . . . . . . . . . .

Issuance of restricted stock awards, net . . .

Other comprehensive loss . . . . . . . . . . . . . .

Net loss . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

2,056

375

—

—

BALANCE AT DECEMBER 31, 2015. . . .

128,152

Adjustment to beginning retained earnings.

Share-based compensation expense . . . . . .

Issuance of common stock pursuant to 
exercise of stock options and vesting of 
restricted stock units and performance 
restricted stock units, net. . . . . . . . . . . . . . .

Issuance of restricted stock awards, net . . .

Other comprehensive income . . . . . . . . . . .

Net loss . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

—

570

780

—

—

BALANCE AT DECEMBER 31, 2016. . . .

129,502

Share-based compensation expense . . . . . .

—

Issuance of common stock for cash, net . . .

11,500

Issuance of common stock pursuant to 
exercise of stock options and vesting of 
restricted stock units and performance 
restricted stock units, net. . . . . . . . . . . . . . .

Cancellation of restricted stock awards, net

Other comprehensive loss . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . .

1,796

(9)

—

—

—

2

—

—

—

128

—

—

1

1

—

—

130

—

11

2

—

—

—

20,838

13,096

—

—

—

525,628

(339)

25,585

1,947

(84)

—

—

552,737

30,670

134,863

12,774

—

—

—

—

—

—

(58)

—

(99)

—

—

—

—

93

—

(6)

—

—

—

(444)

—

—

—

—

—

(32,231)

(482,658)

339

—

—

—

—

(103,023)

(585,342)

—

—

—

41,352

20,838

13,098

—

(58)

(32,231)

42,999

—

25,585

1,948

(83)

93

(103,023)

(32,481)

30,670

134,874

12,776

—

(444)

62,971

62,971

BALANCE AT DECEMBER 31, 2017. . . .

142,789

$

143

$ 731,044

$

(450)

$

(522,371)

$

208,366

See accompanying notes to consolidated financial statements.

F-6

 
 
Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements

1. Organization and Business 

Halozyme Therapeutics, Inc. is a biotechnology company focused on developing and commercializing novel oncology 
therapies. We are seeking to translate our unique knowledge of the tumor microenvironment to create therapies that have 
the potential to improve cancer patient survival. Our research primarily focuses on human enzymes that alter the extracellular 
matrix and tumor microenvironment. The extracellular matrix is a complex matrix of proteins and carbohydrates surrounding 
the  cell  that  provides  structural  support  in  tissues  and  orchestrates  many  important  biological  activities,  including  cell 
migration, signaling and survival. Over many years, we have developed unique technology and scientific expertise enabling 
us to pursue this target-rich environment for the development of therapies.

Our proprietary enzymes are used to facilitate the delivery of injected drugs and fluids, potentially enhancing the 
efficacy and the convenience of other drugs or can be used to alter tissue structures for potential clinical benefit. We exploit 
our technology and expertise using a two pillar strategy that we believe enables us to manage risk and cost by: (1) developing 
our own proprietary products in therapeutic areas with significant unmet medical needs, with a focus on oncology, and (2) 
licensing our technology to biopharmaceutical companies to collaboratively develop products that combine our technology 
with the collaborators’ proprietary compounds.

The majority of our approved product and product candidates are based on rHuPH20, our patented recombinant human 
hyaluronidase enzyme. rHuPH20 is the active ingredient in our first commercially approved product, Hylenex® recombinant, 
and it works by temporarily breaking down hyaluronan (or “HA”), a naturally occurring complex carbohydrate that is a 
major component of the extracellular matrix in tissues throughout the body such as skin and cartilage. We believe this 
temporary degradation creates an opportunistic window for the improved subcutaneous delivery of injectable biologics, 
such as monoclonal antibodies and other large therapeutic molecules, as well as small molecules and fluids. We refer to the 
application of rHuPH20 to facilitate the delivery of other drugs or fluids as our ENHANZE® Technology. We license the 
ENHANZE Technology to form collaborations with biopharmaceutical companies that develop or market drugs requiring 
or benefiting from injection via the subcutaneous route of administration.

We  currently  have  ENHANZE  collaborations  with  F.  Hoffmann-La  Roche,  Ltd.  and  Hoffmann-La  Roche,  Inc. 
(“Roche”), Baxalta US Inc. and Baxalta GmbH (Baxalta Incorporated was acquired by Shire plc in June 2016) (“Baxalta”), 
Pfizer Inc. (“Pfizer”), Janssen Biotech, Inc. (“Janssen”), AbbVie, Inc. (“AbbVie”), Eli Lilly and Company (“Lilly”), Bristol-
Myers  Squibb  Company  (“BMS”)  and Alexion  Pharma  Holding  (“Alexion”).We  receive  royalties  from  two  of  these 
collaborations, including royalties from sales of one product from the Baxalta collaboration and two products from the 
Roche collaboration. Future potential revenues from the sales and/or royalties of our approved products, product candidates, 
and ENHANZE collaborations will depend on the ability of Halozyme and our collaborators to develop, manufacture, secure 
and maintain regulatory approvals for approved products and product candidates and commercialize product candidates.

Our  proprietary  development  pipeline  consists  primarily  of  pre-clinical  and  clinical  stage  product  candidates  in 
oncology.  Our  lead  oncology  program  is  Pegvorhyaluronidase  alfa  (“PEGPH20”,  PEGylated  recombinant  human 
hyaluronidase), a molecular entity we are developing in combination with currently approved cancer therapies as a candidate 
for the systemic treatment of tumors that accumulate HA. We have demonstrated that when HA accumulates in a tumor, it 
can cause higher pressure in the tumor, reducing blood flow into the tumor and with that, reduced access of cancer therapies 
to the tumor. PEGPH20 has been demonstrated in animal models to work by temporarily degrading HA surrounding cancer 
cells resulting in reduced pressure and increased blood flow to the tumor thereby enabling increased amounts of anticancer 
treatments administered concomitantly gaining access to the tumor. Through our efforts and efforts of our partners and 
collaborators, we are currently in Phase 3 clinical testing for PEGPH20 with ABRAXANE® (nab-paclitaxel) and gemcitabine 
in stage IV pancreatic ductal adenocarcinoma (“PDA”) (HALO 109-301), in Phase 1b clinical testing for PEGPH20 with 
KEYTRUDA® (pembrolizumab) in non-small cell lung cancer and gastric cancer (HALO 107-101), in Phase 1b/2 clinical 
testing for PEGPH20 with HALAVEN® (eribulin) in patients treated with up to two lines of prior therapy for HER2-negative 
metastatic  breast  cancer,  in  Phase  1b/2  clinical  testing  for  PEGPH20  with Tecentriq®  (atezolizumab)  in  patients  with 
previously treated metastatic PDA, in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq in patients with gastric cancer 
and in Phase 1b/2 clinical testing for PEGPH20 with Tecentriq in patients with cholangiocarcinoma and gall bladder cancer 
(HALO 110-101/MATRIX).

F-7

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Except where specifically noted or the context otherwise requires, references to “Halozyme,” “the Company,” “we,” 
“our,” and “us” in these notes to condensed consolidated financial statements refer to Halozyme Therapeutics, Inc. and its 
wholly  owned  subsidiary,  Halozyme,  Inc.,  and  Halozyme,  Inc.’s  wholly  owned  subsidiaries,  Halozyme  Holdings  Ltd., 
Halozyme Royalty LLC, Halozyme Switzerland GmbH and Halozyme Switzerland Holdings GmbH. 

2. Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements include the accounts of Halozyme Therapeutics, Inc. and our wholly owned 
subsidiary, Halozyme, Inc., and Halozyme, Inc.’s wholly owned subsidiaries, Halozyme Holdings Ltd., Halozyme Royalty 
LLC,  Halozyme  Switzerland  GmbH  and  Halozyme  Switzerland  Holdings  GmbH.  All  intercompany  accounts  and 
transactions have been eliminated. 

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles 
(“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in our consolidated 
financial statements and accompanying notes. On an ongoing basis, we evaluate our estimates and judgments, which are 
based on historical and anticipated results and trends and on various other assumptions that management believes to be 
reasonable under the circumstances. By their nature, estimates are subject to an inherent degree of uncertainty and, as such, 
actual results may differ from management’s estimates.

Cash Equivalents and Marketable Securities 

Cash equivalents consist of highly liquid investments, readily convertible to cash, that mature within ninety days or 
less  from  the  date  of  purchase. As  of  December 31,  2017,  our  cash  equivalents  consisted  of  money  market  funds  and 
commercial paper.

Marketable securities are investments with original maturities of more than ninety days from the date of purchase that 
are  specifically  identified  to  fund  current  operations.  Marketable  securities  are  considered  available-for-sale.  These 
investments are classified as current assets, even though the stated maturity date may be one year or more beyond the current 
balance sheet date which reflects management’s intention to use the proceeds from the sale of these investments to fund 
our operations, as necessary. Such available-for-sale investments are carried at fair value with unrealized gains and losses 
recorded in other comprehensive gain (loss) and included as a separate component of stockholders’ equity (deficit). The 
cost  of  marketable  securities  is  adjusted  for  amortization  of  premiums  or  accretion  of  discounts  to  maturity,  and  such 
amortization or accretion is included in investment and other income, net in the condensed consolidated statements of 
operations. We use the specific identification method for calculating realized gains and losses on marketable securities sold. 
Realized gains and losses and declines in value judged to be other-than-temporary on marketable securities, if any, are 
included in investment and other income, net in the consolidated statements of operations.

Restricted Cash

Under the terms of the leases of our facilities, we are required to maintain letters of credit as security deposits during 
the terms of such leases. At December 31, 2017 and 2016, restricted cash of $0.5 million was pledged as collateral for the 
letters of credit.

Fair Value of Financial Instruments

The authoritative guidance for fair value measurements establishes a three tier fair value hierarchy, which prioritizes 
the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in 
active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly 
observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity 
to develop its own assumptions. 

F-8

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Our  financial  instruments  include  cash  equivalents,  available-for-sale  marketable  securities,  accounts  receivable, 
prepaid expenses and other assets, accounts payable, accrued expenses and long-term debt. Fair value estimates of these 
instruments are made at a specific point in time, based on relevant market information. These estimates may be subjective 
in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. 
The carrying amount of cash equivalents, accounts receivable, prepaid expenses and other assets, accounts payable and 
accrued expenses are generally considered to be representative of their respective fair values because of the short-term 
nature of those instruments. Based on Level 3 inputs and the borrowing rates currently available for loans with similar 
terms, we believe the fair value of long-term debt approximates its carrying value.

Available-for-sale marketable securities consist of corporate debt securities, U.S. Treasury securities and commercial 
paper, and are measured at fair value using Level 1 and Level 2 inputs. Level 2 financial instruments are valued using market 
prices on less active markets and proprietary pricing valuation models with observable inputs, including interest rates, yield 
curves,  maturity  dates,  issue  dates,  settlement  dates,  reported  trades,  broker-dealer  quotes,  issue  spreads,  benchmark 
securities or other market related data. We obtain the fair value of Level 2 investments from our investment manager, who 
obtains these fair values from a third-party pricing source. We validate the fair values of Level 2 financial instruments 
provided by our investment manager by comparing these fair values to a third-party pricing source.

Concentrations of Credit Risk, Sources of Supply and Significant Customers

We are subject to credit risk from our portfolio of cash equivalents and marketable securities. These investments were 
made in accordance with our investment policy which specifies the categories, allocations, and ratings of securities we may 
consider for investment. The primary objective of our investment activities is to preserve principal while at the same time 
maximizing the income we receive without significantly increasing risk. We maintain our cash and cash equivalent balances 
with one major commercial bank and marketable securities with another financial institution. Deposits held with the financial 
institutions exceed the amount of insurance provided on such deposits. We are exposed to credit risk in the event of a default 
by the financial institutions holding our cash, cash equivalents and marketable securities to the extent recorded on the 
consolidated balance sheets. 

We are also subject to credit risk from our accounts receivable related to our product sales and revenues under our 
license and collaborative agreements. We have license and collaborative agreements with pharmaceutical companies under 
which we receive payments for license fees, milestone payments for specific achievements designated in the collaborative 
agreements, reimbursements of research and development services and supply of bulk formulation of rHuPH20. In addition, 
we  sell  Hylenex®  recombinant  in  the  United  States  to  a  limited  number  of  established  wholesale  distributors  in  the 
pharmaceutical industry. Credit is extended based on an evaluation of the customer’s financial condition, and collateral is 
not required. Management monitors our exposure to accounts receivable by periodically evaluating the collectibility of the 
accounts receivable based on a variety of factors including the length of time the receivables are past due, the financial 
health of the customer and historical experience. Based upon the review of these factors, we recorded no allowance for 
doubtful accounts at December 31, 2017 and 2016. Approximately 86% of the accounts receivable balance at December 31, 
2017  represents  amounts  due  from  Roche  and  Baxalta.  Approximately  81%  of  the  accounts  receivable  balance  at 
December 31, 2016 represents amounts due from Roche and Baxalta. 

The following table indicates the percentage of total revenues in excess of 10% with any single customer:

Roche. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alexion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baxalta. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lilly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AbbVie. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2016
63%
—
—
12%
6%
4%

2015
42%
—
—
7%
19%
17%

2017
38%
32%
13%
7%
—
—

F-9

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

We  attribute  revenues  under  collaborative  agreements,  including  royalties,  to  the  individual  countries  where the 
collaborator is headquartered. We attribute revenues from product sales to the individual countries to which the product is 
shipped. Worldwide revenues from external customers are summarized by geographic location in the following table (in 
thousands):

United States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switzerland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All other foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

Year Ended December 31,

2017
196,274

119,136

1,203

2016

2015

$

52,292

$

93,067

1,332

77,149

57,136

772

316,613

$

146,691

$

135,057

As of December 31, 2017 and 2016, we had less than $0.1 million of research equipment in Germany.

We rely on two third-party manufacturers for the supply of bulk rHuPH20 for use in the manufacture of Hylenex
recombinant and our other collaboration products and product candidates. Payments due to these suppliers represented 4%
and 13% of the accounts payable balance at December 31, 2017 and 2016, respectively. We also rely on a third-party 
manufacturer for the fill and finish of Hylenex recombinant product under a contract. Payments due to this supplier represented 
1% and 2% of the accounts payable balance at December 31, 2017 and 2016, respectively.

Accounts Receivable, Net

Accounts receivable is recorded at the invoiced amount and is non-interest bearing. Accounts receivable is recorded 
net of allowances for doubtful accounts, cash discounts for prompt payment, distribution fees and chargebacks. We recorded 
no allowance for doubtful accounts at December 31, 2017 and 2016 as the collectibility of accounts receivable was reasonably 
assured.

Inventories

Inventories are stated at lower of cost or net realizable value. Cost is determined on a first-in, first-out basis. Net 
realizable  value  is  the  estimated  selling  price  in  the  ordinary  course  of  business,  less  reasonably  predictable  costs  of 
completion, disposal, and transportation. Inventories are reviewed periodically for potential excess, dated or obsolete status. 
We evaluate the carrying value of inventories on a regular basis, taking into account such factors as historical and anticipated 
future sales compared to quantities on hand, the price we expect to obtain for products in their respective markets compared 
with historical cost and the remaining shelf life of goods on hand.

Prior to receiving marketing approval from the U.S. Food and Drug Administration (“FDA”) or comparable regulatory 
agencies in foreign countries, costs related to purchases of bulk rHuPH20 and raw materials and the manufacturing of the 
product candidates are recorded as research and development expense. All direct manufacturing costs incurred after receiving 
marketing approval are capitalized as inventory. Inventories used in clinical trials are expensed at the time the inventories 
are packaged for the clinical trials. 

As of December 31, 2017 and 2016, inventories consisted of $2.9 million and $2.3 million, respectively, of Hylenex
recombinant inventory, net, and $2.2 million and $12.3 million, respectively, of bulk rHuPH20 for use in the manufacture 
of Baxalta’s and Roche’s collaboration products.

Property and Equipment, Net

Property and equipment are recorded at cost, less accumulated depreciation and amortization. Equipment is depreciated 
using the straight-line method over its estimated useful life of three years and leasehold improvements are amortized using 
the straight-line method over the estimated useful life of the asset or the lease term, whichever is shorter. 

F-10

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Impairment of Long-Lived Assets

We account for long-lived assets in accordance with authoritative guidance for impairment or disposal of long-lived 
assets. Long-lived assets are reviewed for events or changes in circumstances, which indicate that their carrying value may 
not be recoverable. For the years ended December 31, 2017 and 2016, there was no impairment of the value of long-lived 
assets.

Deferred Rent

Rent expense is recorded on a straight-line basis over the initial term of the lease. The difference between rent expense 
accrued and amounts paid under lease agreements is recorded as deferred rent and is included in accrued expenses and other 
long-term liabilities, as applicable, in the accompanying consolidated balance sheets.

Comprehensive Income (Loss)

Comprehensive income (loss) is defined as the change in equity during the period from transactions and other events 

and circumstances from non-owner sources.

Revenue Recognition

We  generate  revenues  from  product  sales  and  payments  received  under  collaborative  agreements.  Collaborative 
agreement payments may include nonrefundable fees at the inception of the agreements, license fees, milestone and event-
based payments for specific achievements designated in the collaborative agreements, reimbursements of research and 
development  services  and  supply  of  bulk  rHuPH20,  and/or  royalties  on  sales  of  products  resulting  from  collaborative 
arrangements.

We recognize revenues in accordance with the authoritative guidance for revenue recognition. We recognize revenue 
when all of the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or 
services have been rendered; (3) the seller’s price to the buyer is fixed or determinable; and (4) collectibility is reasonably 
assured.

Product Sales, Net

Hylenex Recombinant

We sell Hylenex recombinant in the U.S. to wholesale pharmaceutical distributors, who sell the product to hospitals 
and other end-user customers. Sales to wholesalers provide for selling prices that are fixed on the date of sale, although we 
offer discounts to certain group purchasing organizations (“GPOs”), hospitals and government programs. The wholesalers 
take title to the product, bear the risk of loss of ownership and have economic substance to the inventory. Further, we have 
no significant obligations for future performance to generate pull-through sales.

We have developed sufficient historical experience and data to reasonably estimate future returns and chargebacks of 
Hylenex recombinant. As a result, we recognize Hylenex recombinant product sales and related cost of product sales at the 
time title transfers to the wholesalers.

Upon  recognition  of  revenue  from  product  sales  of  Hylenex  recombinant,  we  record  certain  sales  reserves  and 
allowances as a reduction to gross revenue. These reserves and allowances include amounts for product returns (based 
primarily on an analysis of historical return patterns), distribution fees, prompt payment discounts, and GPO fees and other 
discounts and fees. 

We recognize product sales reserves and allowances as a reduction of product sales in the same period the related 
revenue is recognized. Because of the shelf life of Hylenex recombinant and our lengthy return period, there may be a 
significant period of time between when the product is shipped and when we issue credits on returned product. If actual 
product return results differ from our estimates, we will be required to make adjustments to these allowances in the future, 
which could have an effect on product sales revenue and earnings in the period of adjustments. 

F-11

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Bulk rHuPH20

Subsequent to receiving marketing approval from the FDA or comparable regulatory agencies in foreign countries, 
sales of bulk rHuPH20 for use in collaboration commercial products are recognized as product sales when the materials 
have met all the specifications required for the customer’s acceptance and title and risk of loss have transferred to the 
customer. Following the receipt of European marketing approvals of Roche’s Herceptin SC product in August 2013 and 
MabThera®  SC  product  in  March  2014  and  Baxalta’s  HYQVIA  product  in  May  2013,  revenue  from  the  sales  of  bulk 
rHuPH20 for these collaboration products has been recognized as product sales.

Revenues under Collaborative Agreements 

We have entered into license and collaboration agreements under which our collaborators obtained worldwide rights 
for the use of our proprietary rHuPH20 enzyme in the development and commercialization of their biologic compounds 
identified  as  targets.  These  agreements  may  also  contain  other  elements.  Pursuant  to  the  terms  of  these  agreements, 
collaborators could be required to make various payments to us for each target, including nonrefundable upfront license 
fees, exclusivity fees, payments based on achievement of specified milestones designated in the collaborative agreements, 
annual maintenance fees, reimbursements of research and development services, payments for supply of bulk rHuPH20 
used by the collaborator and/or royalties on sales of products resulting from collaborative agreements. 

In order to account for the multiple-element arrangements, we identify the deliverables included within the collaborative 
agreement and evaluate which deliverables represent units of accounting. We then determine the appropriate method of 
revenue recognition for each unit based on the nature and timing of the delivery process. Analyzing the arrangement to 
identify deliverables requires the use of judgment, and each deliverable may be an obligation to deliver services, a right or 
license to use an asset, or another performance obligation. The deliverables under our collaborative agreements include 
(i) the license to our rHuPH20 technology, (ii) at the collaborator’s request, research and development services which are 
reimbursed  at  contractually  determined  rates,  and  (iii) at  the  collaborator’s  request,  supply  of  bulk  rHuPH20  which  is 
reimbursed at our cost plus a margin. A delivered item is considered a separate unit of accounting when the delivered item 
has value to the collaborator on a standalone basis based on the consideration of the relevant facts and circumstances for 
each arrangement. We base this determination on the collaborators’ ability to use the delivered items on their own without 
us supplying undelivered items, which we determine taking into consideration factors such as the research capabilities of 
the collaborator, the availability of research expertise in this field in the general marketplace, and the ability to procure the 
supply of bulk rHuPH20 from the marketplace. 

Arrangement consideration is allocated at the inception of the agreement to all identified units of accounting based 
on their relative selling price. The relative selling price for each deliverable is determined using vendor specific objective 
evidence (“VSOE”) of selling price or third-party evidence of selling price if VSOE does not exist. If neither VSOE nor 
third-party evidence of selling price exists, we use our best estimate of the selling price for the deliverable. The amount of 
allocable arrangement consideration is limited to amounts that are not contingent upon the delivery of additional items or 
meeting  other  specified  performance  conditions.  The  consideration  received  is  allocated  among  the  separate  units  of 
accounting and the applicable revenue recognition criteria are applied to each of the separate units. Changes in the allocation 
of the sales price between delivered and undelivered elements can impact revenue recognition but do not change the total 
revenue recognized under any agreement.

Nonrefundable upfront license fees are recognized upon delivery of the license if facts and circumstances dictate that 
the license has standalone value from the undelivered items, which generally include research and development services 
and the manufacture of bulk rHuPH20, the relative selling price allocation of the license is equal to or exceeds the upfront 
license  fee,  persuasive  evidence  of  an  arrangement  exists,  our  price  to  the  collaborator  is  fixed  or  determinable  and 
collectibility is reasonably assured. Upfront license fees are deferred if facts and circumstances dictate that the license does 
not have standalone value. The determination of the length of the period over which to defer revenue is subject to judgment 
and estimation and can have an impact on the amount of revenue recognized in a given period.

F-12

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

When  collaborators  have  rights  to  elect  additional  targets,  the  rights  are  assessed  as  to  whether  they  represent 
deliverables at the inception of the arrangement. In assessing these contingent deliverables, we consider whether the right 
is a substantive option. We consider a right to be a substantive option if the election of the additional targets is not essential 
to the functionality of the other elements in the arrangement and if we are truly at risk of the right being exercised. If the 
right is determined to be a substantive option, we further consider whether the right is priced at a significant and incremental 
discount that should be accounted for as an element of the arrangement. If a right is determined to be a substantive option 
and is not priced at a significant and incremental discount, it is not treated as a deliverable in the arrangement and receives 
no allocation at the inception of the arrangement of the original arrangement consideration. The right is then accounted for 
when and if it is exercised. When collaborators have a right to return targets, the right is assessed as to whether the target 
may be returned for a refund of the purchase price, for a credit applied to amounts owed, or in exchange for other dissimilar 
products. We also assess if we have sufficient history to estimate the likelihood of return. If a right of return is considered 
to exist and we determine there is not sufficient history to estimate the likelihood of return, the consideration allocated to 
returnable targets is recorded as deferred revenue on the consolidated balance sheet until the right of return is exercised or 
expires. 

Certain  of  our  collaborative  agreements  provide  for  milestone  payments  upon  achievement  of  development  and 
regulatory events and/or specified sales volumes of commercialized products by the collaborator. We account for milestone 
payments in accordance with the provisions of ASU No. 2010-17, Revenue Recognition - Milestone Method (“Milestone 
Method of Accounting”). We recognize consideration that is contingent upon the achievement of a milestone in its entirety 
as revenue in the period in which the milestone is achieved only if the milestone is substantive in its entirety. A milestone 
is considered substantive when it meets all of the following criteria:

1.  The  consideration  is  commensurate  with  either  the  entity’s  performance  to  achieve  the  milestone  or  the 
enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from the entity’s 
performance to achieve the milestone;

2.  The consideration relates solely to past performance; and

3.  The consideration is reasonable relative to all of the deliverables and payment terms within the arrangement.

A  milestone  is  defined  as  an  event  (i) that  can  only  be  achieved  based  in  whole  or  in  part  on  either  the  entity’s 
performance or on the occurrence of a specific outcome resulting from the entity’s performance, (ii) for which there is 
substantive uncertainty at the date the arrangement is entered into that the event will be achieved, and (iii) that would result 
in additional payments being due to the vendor.

Reimbursements of research and development services are recognized as revenue during the period in which the 
services are performed as long as there is persuasive evidence of an arrangement, the fee is fixed or determinable and 
collection of the related receivable is reasonably assured. Revenue from the manufacture of bulk rHuPH20 is recognized 
when the materials have met all specifications required for the collaborator’s acceptance and title and risk of loss have 
transferred to the collaborator. We do not directly control when any collaborator will request research and development 
services or supply of bulk rHuPH20; therefore, we cannot predict when we will recognize revenues in connection with 
research and development services and supply of bulk rHuPH20. 

Since we receive royalty reports 60 days after quarter end, royalty revenue from sales of collaboration products by 

our collaborators is recognized in the quarter following the quarter in which the corresponding sales occurred.

The collaborative agreements typically provide the collaborators the right to terminate such agreement in whole or 
on a product-by-product or target-by-target basis at any time upon 30 to 90 days prior written notice to us. There are no 
performance, cancellation, termination or refund provisions in any of our collaborative agreements that contain material 
financial consequences to us.

Refer to Note 4, Collaborative Agreements, for further discussion on our collaborative arrangements.

Cost of Product Sales

Cost of product sales consists primarily of raw materials, third-party manufacturing costs, fill and finish costs, freight 
costs, internal costs and manufacturing overhead associated with the production of Hylenex recombinant and bulk rHuPH20 
for use in approved collaboration products. Cost of product sales also consists of the write-down of excess, dated and 
obsolete inventories and the write-off of inventories that do not meet certain product specifications, if any.

F-13

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Research and Development Expenses

Research and development expenses include salaries and benefits, facilities and other overhead expenses, external 
clinical trial expenses, research related manufacturing services, contract services and other outside expenses. Research and 
development expenses are charged to operating expenses as incurred when these expenditures relate to our research and 
development efforts and have no alternative future uses. After receiving approval from the FDA or comparable regulatory 
agencies in foreign countries for a product, costs related to purchases and manufacturing of bulk rHuPH20 for such product 
are  capitalized  as  inventory. The  manufacturing  costs  of  bulk  rHuPH20  for  the  collaboration  products,  Herceptin  SC, 
MabThera SC (RITUXAN HYCELA™ in the U.S.) and HYQVIA, incurred after the receipt of marketing approvals are 
capitalized as inventory.

We are obligated to make upfront payments upon execution of certain research and development agreements. Advance 
payments, including nonrefundable amounts, for goods or services that will be used or rendered for future research and 
development activities are deferred. Such amounts are recognized as expense as the related goods are delivered or the related 
services are performed or such time when we do not expect the goods to be delivered or services to be performed.

Milestone payments that we make in connection with in-licensed technology for a particular research and development 
project that have no alternative future uses (in other research and development projects or otherwise) and therefore no 
separate economic value are expensed as research and development costs at the time the costs are incurred. We currently 
have no in-licensed technologies that have alternative future uses in research and development projects or otherwise.

Clinical Trial Expenses

We make payments in connection with our clinical trials under contracts with contract research organizations that 
support conducting and managing clinical trials. The financial terms of these agreements are subject to negotiation and vary 
from contract to contract and may result in uneven payment flows. Generally, these agreements set forth the scope of work 
to be performed at a fixed fee, unit price or on a time and materials basis. A portion of our obligation to make payments 
under these contracts depends on factors such as the successful enrollment or treatment of patients or the completion of 
other clinical trial milestones. 

Expenses related to clinical trials are accrued based on our estimates and/or representations from service providers 
regarding work performed, including actual level of patient enrollment, completion of patient studies and progress of the 
clinical trials. Other incidental costs related to patient enrollment or treatment are accrued when reasonably certain. If the 
amounts we are obligated to pay under our clinical trial agreements are modified (for instance, as a result of changes in the 
clinical trial protocol or scope of work to be performed), we adjust our accruals accordingly on a prospective basis. Revisions 
to our contractual payment obligations are charged to expense in the period in which the facts that give rise to the revision 
become reasonably certain. 

Share-Based Compensation

We record compensation expense associated with stock options, restricted stock awards (“RSAs”), restricted stock 
units (“RSUs”), and RSUs with performance conditions (“PRSUs”) in accordance with the authoritative guidance for stock-
based compensation. The cost of employee services received in exchange for an award of an equity instrument is measured 
at the grant date, based on the estimated fair value of the award, and is recognized as expense on a straight-line basis over 
the requisite service period of the award. Share-based compensation expense for an award with a performance condition is 
recognized when the achievement of such performance condition is determined to be probable. If the outcome of such 
performance condition is not determined to be probable or is not met, no compensation expense is recognized and any 
previously  recognized  compensation  expense  is  reversed.  Forfeitures  are  recognized  as  a  reduction  of  share-based 
compensation expense as they occur.

F-14

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Income Taxes 

We provide for income taxes using the liability method. Under this method, deferred income tax assets and liabilities 
are determined based on the differences between the financial statement carrying amounts of existing assets and liabilities 
at each year end and their respective tax bases and are measured using enacted tax rates in effect for the year in which the 
differences are expected to affect taxable income. Significant judgment is required by management to determine our provision 
for income taxes, our deferred tax assets and liabilities, and the valuation allowance to record against our net deferred tax 
assets, which are based on complex and evolving tax regulations throughout the world. Deferred tax assets and other tax 
benefits are recorded when it is more likely than not that the position will be sustained upon audit. While we have begun 
to utilize certain of our net operating losses, we have not yet established a track record of profitability. Accordingly, valuation 
allowances have been recorded to reduce our net deferred tax assets to zero, with the exception of the alternative minimum 
tax ("AMT") credit carryover. Under the Tax Cuts and Jobs Act enacted in December 2017, the AMT credit carryover will 
either be utilized, or if unutilized fully refunded in 2022. For all other deferred tax assets the valuation allowance will reduce 
the net value to zero until such time as we can demonstrate an ability to realize them.

Net Income (Loss) Per Share

Basic net income (loss) per common share is computed by dividing net income (loss) for the period by the weighted 
average number of common shares outstanding during the period, without consideration for common stock equivalents. 
Outstanding stock options, unvested RSAs, unvested RSUs and unvested PRSUs are considered common stock equivalents 
and are only included in the calculation of diluted earnings per common share when net income is reported and their effect 
is dilutive. For the years ended December 31, 2017, 2016 and 2015, approximately 7.1 million, 13.8 million, and 9.8 million
shares, respectively, of outstanding stock options, unvested RSAs, unvested RSUs and unvested PRSUs were excluded from 
the calculation of diluted net income (loss) per common share because their effect was anti-dilutive. A reconciliation of the 
numerators and the denominators of the basic and diluted net income (loss) per common share computations is as follows 
(in thousands, except per share amounts):

Year Ended December 31,

2017

2016

2015

Numerator:

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

62,971

$ (103,023) $ (32,231)

Denominator:

Weighted average common shares outstanding for basic
     net income (loss) per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net effect of dilutive common stock equivalents . . . . . . . . . . . . . . . .
Weighted average common shares outstanding for diluted
     net income (loss) per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

136,419
2,649

127,964
—

126,704
—

139,068

127,964

126,704

Net income (loss) per share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.46
0.45

$
$

(0.81) $
(0.81) $

(0.25)
(0.25)

 Segment Information

We  operate  our  business  in  one  segment,  which  includes  all  activities  related  to  the  research,  development  and 
commercialization of our proprietary enzymes. This segment also includes revenues and expenses related to (i) research 
and development and bulk rHuPH20 manufacturing activities conducted under our collaborative agreements with third 
parties and (ii) product sales of Hylenex recombinant. The chief operating decision-maker reviews the operating results on 
an aggregate basis and manages the operations as a single operating segment. Our long-lived assets located in foreign 
countries had minimal book value as of December 31, 2017 and 2016.

F-15

 
Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Adoption and Pending Adoption of Recent Accounting Pronouncements

The following table provides a brief description of recently issued accounting standards, those adopted in the current 

period and those not yet adopted:

Standard

Description

Effective Date

Effect on the Financial 
Statements or Other Significant 
Matters

In July 2015, the FASB
issued ASU
2015-11, Inventory:
Simplifying the
Measurement of
Inventory.

In November 2015, the
FASB issued ASU
2015-17, Income Taxes
(Topic 740), Balance
Sheet Classification of
Deferred Tax Assets

In August 2016, the
FASB issued ASU
2016-15, Statement of
Cash Flows:
Classification of
Certain Cash Receipts
and Cash Payments.

In November 2016, the
FASB issued ASU
2016-18, Statement of
Cash Flows: Restricted
Cash.

The new guidance requires that for entities that
measure inventory using the first-in, first-out
method, inventory should be measured at the
lower of cost or net realizable value. Topic 330,
Inventory, currently requires an entity to
measure inventory at the lower of cost or
market. Market could be replacement cost, net
realizable value, or net realizable value less an
approximate normal profit margin. Net
realizable value is the estimated selling price in
the ordinary course of business, less reasonably
predictable costs of completion, disposal, and
transportation.

The amendments in this update simplify the 
presentation of deferred income taxes by 
requiring that deferred tax liabilities and assets 
be classified as noncurrent in a classified 
statement of financial position.

Current U.S. GAAP either is unclear or does not
include specific guidance on the eight cash flow
classification issues included in ASU 2016-15.
The new guidance is an improvement to U.S.
GAAP and is intended to reduce the current and
potential future diversity in practice. ASU
2016-18 provides additional classification
guidance for restricted cash, which requires that
restricted cash be included with cash and cash
equivalents when reconciling the beginning-of-
period and end-of-period total amounts shown
on the statement of cash flows.

January 1, 2017. The adoption did not have a

material impact on our
consolidated financial
position or results of
operations.

January 1, 2017

The adoption of this 
guidance did not have a 
significant impact on the 
Company’s financial 
statements.

January 1, 2018.
We have elected
to early adopt as
of January 1,
2017.

Cash and cash equivalents at
the beginning-of-period and
end-of-period total amounts
in the Consolidated
Statements of Cash Flows
have been adjusted to include
$0.5 million of restricted
cash for each of the periods
presented.

F-16

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Description

Effective Date

Effect on the Financial 
Statements or Other Significant 
Matters

January 1, 2018. We currently do not hold

equity securities, and we are
evaluating the effect the
updated standard will have
on our consolidated financial
statements and related
disclosures.

Standard

In January 2016, the
FASB issued ASU
2016-01, Financial
Instruments - Overall;
Recognition and
Measurement of
Financial Assets and
Financial Liabilities.

In May 2014, the
FASB issued ASU
2014-09, Revenue
from Contracts with
Customers (Topic
606). In March, April,
May and December
2016, the FASB issued
additional guidance
related to Topic 606.

The new guidance supersedes the guidance to
classify equity securities with readily
determinable fair values into different categories
(that is, trading or available-for-sale) and
requires equity securities to be measured at fair
value with changes in the fair value recognized
through net income. The new guidance requires
public business entities that are required to
disclose fair value of financial instruments
measured at amortized cost on the balance sheet
to measure that fair value using the exit price
notion consistent with Topic 820, Fair Value
Measurement.

The new standard will supersede nearly all 
existing revenue recognition guidance. Under 
Topic 606, an entity is required to recognize 
revenue upon transfer of promised goods or 
services to customers in an amount that reflects 
the expected consideration to be received in 
exchange for those goods or services. Topic 606 
defines a five-step process in order to achieve 
this core principle, which may require the use of 
judgment and estimates, and also requires 
expanded qualitative and quantitative 
disclosures relating to the nature, amount, 
timing and uncertainty of revenue and cash 
flows arising from contracts with customers, 
including significant judgments and estimates 
used. The new standard also defines accounting 
for certain costs related to origination and 
fulfillment of contracts with customers, 
including whether such costs should be 
capitalized. The new standard permits adoption 
either by using (i) a full retrospective approach 
for all periods presented in the period of 
adoption or (ii) a modified retrospective 
approach where the new standard is applied in 
the financial statements starting with the year of 
adoption. Under both approaches, cumulative 
impact of the adoption is reflected as an 
adjustment to retained earnings (accumulated 
equity (deficit)) as of the earliest date presented 
in accordance with the new standard.

In February 2016, the
FASB issued ASU
2016-02, Leases.

The new guidance requires lessees to recognize
assets and liabilities for most leases and
provides enhanced disclosures.

January 1, 2019.
Early adoption
is permitted.

F-17

January 1, 2018.
Early adoption
is permitted.

We plan to implement the 
new guidance on January 1, 
2018 using the modified 
retrospective approach. We 
have substantially completed 
our evaluation of the effect 
that the updated standard will 
have on our consolidated 
financial statements and 
related disclosures. Adoption 
of the new guidance will 
impact the timing of 
recognition of payments 
related to certain of our 
license and collaboration 
agreements (1) and the timing 
of recognition of our sales-
based royalties.(2) This 
standard will have a material 
impact on our consolidated 
financial statements. 

We are currently evaluating
the effect the updated
standard will have on our
consolidated financial
statements and related
disclosures and do not intend
to early adopt. We anticipate
recognition of additional
assets and corresponding
liabilities related to our
leases on our consolidated
balance sheet.

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Description
The standard amends the impairment model by 
requiring entities to use a forward-looking 
approach based on expected losses to estimate 
credit losses for most financial assets and 
certain other instruments that aren’t measured at 
fair value through net income.

Effective Date
January 1, 2020

Effect on the Financial 
Statements or Other Significant 
Matters

The Company does not 
believe the adoption will 
have a material impact on 
our consolidated financial 
position or results of 
operations.

Standard

In June 2016, the
FASB issued ASU
2016-13, Financial
Instruments - Credit
Losses (Topic 326),
Measurement of Credit
Losses on Financial
Instruments

_______________

(1)  Under the new standard, we are required to assess whether licenses granted under our collaboration and license 
agreements are distinct in the context of the agreement from other performance obligations and functional when 
granted. We expect that license-related amounts, including upfront payments, exclusive designation fees, annual 
license maintenance fees, additional target fees, development, regulatory and sales-based milestones will be 
recognized, generally, at a point in time when earned. Currently, these amounts related to certain of our license 
and collaboration agreements are being amortized over the term of the collaboration agreement. For example, 
during the year ended December 31, 2017, we recognized revenue from amortization of license payments of 
$4.1 million. Total deferred revenue related to license payments under collaboration agreements as of December 
31, 2017 was $51.8 million, which will be eliminated and recorded as a reduction to our accumulated deficit 
upon adoption of Topic 606. Under the new standard, license revenues would have totaled $198.4 million for 
the year ended December 31, 2017.

(2)  Under the new standard, we expect sales-based royalties will be recognized in the quarter they are earned based 
on estimates, with a true-up to actual results following in the subsequent quarter. Sales-based royalty revenue 
earned under our collaboration and license agreements is presently recognized when the royalty reports are made 
available.  Upon  adoption  of  Topic  606,  we  will  reduce  our  accumulated  deficit  and  increase  our  accounts 
receivable, net, by the amount earned but not yet reported in our consolidated balance sheet of approximately 
$19.4 million. In 2017, we recognized royalty revenues of $63.5 million. Under the new standard, royalty revenues 
would have totaled $68.9 million for the year ended December 31, 2017. We have established a process to 
estimate sales-based royalty revenues in the quarter in which the sales occur going forward.

3. Fair Value Measurement

Available-for-sale marketable securities consisted of the following (in thousands):

Corporate debt securities . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31, 2017

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Estimated
Fair Value

$

$

— $
—
—
— $

(235) $ 117,192
(201)
66,400
116,882
—
(436) $ 300,474

Amortized
Cost
$ 117,427
66,601
116,882
$ 300,910

Corporate debt securities . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. Treasury securities . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commercial paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amortized
Cost
40,221

$

94,002

4,000

$

$ 138,223

$

F-18

December 31, 2016

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Estimated
Fair Value

1

24

—

25

$

$

40,207

94,010

(15) $
(16)
4,000
—
(31) $ 138,217

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

As of December 31, 2017, 28 available-for-sale marketable securities with a fair market value of $183.6 million were 
in a gross unrealized loss position of $0.4 million, all of which had been in such position for less than 12 months. Based on 
our review of these marketable securities, we believe we had no other-than-temporary impairments on these securities as 
of December 31, 2017, because we do not intend to sell these securities and it is not more-likely-than-not that we will be 
required to sell these securities before the recovery of their amortized cost basis.

Contractual maturities of available-for-sale debt securities are as follows (in thousands):

Due within one year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
After one but within five years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31, 2017

December 31, 2016

Estimated Fair Value
213,426

$

87,048

300,474

$

132,221

5,996

138,217

$

$

The following table summarizes, by major security type, our cash equivalents and available-for-sale marketable 

securities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in 
thousands):

December 31, 2017

December 31, 2016

Level 1

Level 2

Total
estimated
fair value

Level 1

Level 2

Total
estimated
fair value

Cash equivalents:

Money market funds. . . . . .
Commercial paper . . . . . . .

$ 142,091
—

$

— $ 142,091
15,700

15,700

$

$

60,916
—

— $
—

60,916
—

Available-for-sale
   marketable securities:

Corporate debt securities . .
U.S. Treasury securities . . .
Commercial paper . . . . . . .

—
66,400
—
$ 208,491

117,192
—
116,882
$ 249,774

117,192
66,400
116,882
$ 458,265

—
94,010
—
$ 154,926

$

40,207
—
4,000
44,207

40,207
94,010
4,000
$ 199,133

There were no transfers between Level 1 and Level 2 of the fair value hierarchy during the year ended December 31, 

2017. We had no instruments that were classified within Level 3 as of December 31, 2017 and 2016.

4. Collaborative Agreements

Roche Collaboration

In December 2006, we and Roche entered into a collaboration and license agreement, under which Roche obtained a 
worldwide  license  to  develop  and  commercialize  product  combinations  of  rHuPH20  and  up  to  thirteen  Roche  target 
compounds (the “Roche Collaboration”). Roche initially had the exclusive right to apply rHuPH20 to three pre-defined 
Roche biologic targets with the option to develop and commercialize rHuPH20 with ten additional targets. Roche had the 
right to exercise this option to identify additional targets for ten years. As of the ten year anniversary in December 2016, 
Roche had elected a total of eight targets, two of which are exclusive. 

F-19

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

In August 2013, Roche received European marketing approval for its collaboration product, Herceptin SC, for the 
treatment  of  patients  with  HER2-positive  breast  cancer  and  launched  Herceptin  SC  in  the  European  Union  (“EU”)  in 
September 2013. In March 2014, Roche received European marketing approval for its collaboration product, MabThera 
SC, for the treatment of patients with common forms of non-Hodgkin lymphoma (“NHL”). In June 2014, Roche launched 
MabThera SC in the EU. In May 2016, Roche announced that the EMA approved Mabthera SC to treat patients with chronic 
lymphocytic leukemia (“CLL”). In June 2017, the FDA approved Genentech’s (a member of the Roche Group) RITUXAN 
HYCELA™, a combination of rituximab and rHuPH20 (approved and marketed under the MabThera SC brand in countries 
outside the U.S.), for CLL and two types of NHL, follicular lymphoma and diffuse large B-cell lymphoma. Following FDA 
approval, Genentech launched RITUXAN HYCELA in the U.S.

Roche  assumes  all  development,  manufacturing,  clinical,  regulatory,  sales  and  marketing  costs  under  the  Roche 
Collaboration, while we are responsible for the supply of bulk rHuPH20. We are entitled to receive reimbursements for 
providing research and development services and supplying bulk rHuPH20 to Roche at its request.

Under the terms of the Roche Collaboration, Roche pays us a royalty on each product commercialized under the 
agreement consisting of a mid-single digit percent of the net sales of such product. Unless terminated earlier in accordance 
with its terms, the Roche Collaboration continues in effect until the expiration of Roche’s obligation to pay royalties. Roche 
has the obligation to pay royalties to us with respect to each product commercialized in each country, during the period 
equal to the longer of: (a) the duration of any valid claim of our patents covering rHuPH20 or other specified patents 
developed under the Roche Collaboration which valid claim covers the product in such country or (b) ten years following 
the date of the first commercial sale of such product in such country. In the event such valid claims expire, the royalty rate 
is reduced for the remaining royalty term.

Payments received from Roche, excluding royalties and reimbursements for providing research and development 

services and supplying bulk rHuPH20, since inception of the Roche Collaboration are as follows (in thousands):

Upfront license fee payment for the application of rHuPH20 to the initial exclusive targets . . . .
Election of additional exclusive targets and annual license maintenance fees for the 
   right to designate the remaining targets as exclusive targets . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clinical development milestone payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Regulatory milestone payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales-based milestone payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total payments received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

20,000

23,000
13,000
8,000
22,000
86,000

As of December 31,
2017

Due to our continuing involvement obligations (for example, support activities associated with rHuPH20) under the 
Roche Collaboration, revenues from the upfront payment, exclusive designation fees, annual license maintenance fees and 
sales-based milestone payments were deferred and are being amortized over the remaining term of the Roche Collaboration. 

For  each  of  the  years  ended  December 31,  2017,  2016  and  2015,  we  recognized  $3.3  million  of  Roche  deferred 
revenues, excluding reimbursements for providing research and development services and supplying bulk rHuPH20, as 
revenues  under  collaborative  agreements.  Total  Roche  deferred  revenues,  excluding  deferred  revenues  related  to 
reimbursements for providing research and development services and supplying bulk rHuPH20, were $39.4 million and 
$35.7 million as of December 31, 2017 and 2016, respectively. 

F-20

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

In September 2017, we and Roche entered into an agreement providing Roche the right to develop and commercialize 
products with one additional exclusive target using our ENHANZE Technology for an upfront payment of $30.0 million
(the  “2017  Roche  Collaboration”). The  upfront  license  payment  may  be  followed  by  event-based  payments  subject  to 
Roche’s achievement of specified development, regulatory and sales-based milestones. In addition, Roche will pay royalties 
to us if products under the collaboration are commercialized consisting of a mid-single digit percent of the net sales of such 
product. Unless terminated earlier in accordance with its terms, the 2017 Roche Collaboration continues in effect until the 
expiration of Roche’s obligation to pay royalties. Roche has the obligation to pay royalties to us with respect to each product 
commercialized in each country, during the period equal to the longer of: (a) the duration of any valid claim of our patents 
covering rHuPH20 or other specified patents developed under the 2017 Roche Collaboration which valid claim covers the 
product in such country or (b) ten years following the date of the first commercial sale of such product in such country. In 
the event such valid claims expire, the royalty rate is reduced for the remaining royalty term. Roche may terminate the 
agreement prior to expiration for any reason in its entirety upon 90 days prior written notice to us. Upon any such termination, 
the license granted to Roche (in total or with respect to the terminated target, as applicable) will terminate provided, however, 
that in the event of expiration of the agreement, the licenses granted will become perpetual, non-exclusive and fully paid.

At the inception of the 2017 Roche Collaboration, we identified the deliverables in the arrangement to include the 
license, research and development services and supply of bulk rHuPH20 and determined that each individually represent 
separate units of accounting, because each deliverable has standalone value. The estimated selling prices for the units of 
accounting we identified were determined based on market conditions, the terms of comparable collaborative arrangements 
for similar technology in the pharmaceutical and biotech industry and entity-specific factors such as the terms of our previous 
collaborative agreements, our pricing practices and pricing objectives. The arrangement consideration was allocated to the 
deliverables  based  on  the  relative  selling  price  method  and  the  nature  of  the  research  and  development  services  to  be 
performed for the collaborator. The amount allocable to the delivered unit or units of accounting is limited to the amount 
that is not contingent upon the delivery of additional items or meeting other specified performance conditions (non-contingent 
amount). As such, we excluded from the allocable arrangement consideration the event-based payments, milestone payments 
and royalties regardless of the probability of receipt. Based on the results of our analysis, we allocated the $30.0 million to 
the license fee deliverable. We determined that the upfront payment was earned upon the granting of the worldwide, exclusive 
right to our technology to Roche. As a result, we recognized  the $30.0 million license fee under the 2017 Roche Collaboration 
as revenues under collaborative agreements for the year ended December 31, 2017.

Baxalta Collaboration

In September 2007, we and Baxalta entered into a collaboration and license agreement, under which Baxalta obtained 
a  worldwide,  exclusive  license  to  develop  and  commercialize  HYQVIA,  a  combination  of  Baxalta’s  current  product 
GAMMAGARD  LIQUID™  and  our  patented  rHuPH20  enzyme  (the  “Baxalta  Collaboration”).  In  2013,  the  European 
Commission  granted  Baxalta  marketing  authorization  in  all  EU  Member  States  for  the  use  of  HYQVIA  (solution  for 
subcutaneous use), a combination of GAMMAGARD LIQUID and rHuPH20 in dual vial units, as replacement therapy for 
adult patients with primary and secondary immunodeficiencies, and Baxalta launched HYQVIA in the EU. In 2014, Baxalta 
launched HYQVIA in the U.S following the FDA’s approval of HYQVIA for treatment of adult patients with primary 
immunodeficiency. In May 2016, Baxalta announced that HYQVIA received a marketing authorization from the European 
Commission  for  a  pediatric  indication,  which  is  being  launched  in  Europe  to  treat  primary  and  certain  secondary 
immunodeficiencies. 

The Baxalta Collaboration is applicable to both kit and formulation combinations. Baxalta assumes all development, 
manufacturing, clinical, regulatory, sales and marketing costs under the Baxalta Collaboration, while we are responsible 
for the supply of bulk rHuPH20. We perform research and development activities and supply bulk rHuPH20 at the request 
of Baxalta, and are reimbursed by Baxalta under the terms of the Baxalta Collaboration. In addition, Baxalta has certain 
product development and commercialization obligations in major markets identified in the Baxalta Collaboration.

Under the terms of the Baxalta Collaboration, Baxalta pays us a royalty consisting of a mid-single digit percent of the 
net sales of HYQVIA. Unless terminated earlier in accordance with its terms, the Baxalta Collaboration continues in effect 
until the expiration of Baxalta’s obligation to pay royalties to us. Baxalta has the obligation to pay royalties to us, with 
respect to each product commercialized in each country, during the period equal to the longer of: (a) the duration of any 
valid claim of our patents covering rHuPH20 or other specified patents developed under the Baxalta Collaboration which 
valid claim covers the product in such country or (b) ten years following the date of the first commercial sale of such product 
in such country. In the event such valid claims expire, the royalty rate is reduced for the remaining royalty term.

F-21

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Payments received from Baxalta, excluding royalties and reimbursements for providing research and development 

services and supplying bulk rHuPH20, since inception of the collaboration agreement are as follows (in thousands):

As of December 31,
2017

Upfront license fee payment for the application of rHuPH20 to the initial exclusive target. . . . .
Regulatory milestone payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales-based milestone payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total payments received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

10,000
3,000
9,000
22,000

Due to our continuing involvement obligations (for example, support activities associated with rHuPH20 enzyme), 
the upfront license fee and sales-based milestone payments were deferred and are being recognized over the term of the 
Baxalta Collaboration. 

For each of the years ended December 31, 2017, 2016 and 2015, we recognized $0.8 million of Baxalta deferred 
revenues, excluding reimbursements for providing research and development services and supplying bulk rHuPH20, as 
revenues under collaborative agreements. Total Baxalta deferred revenues, excluding reimbursements for providing research 
and development services and supplying bulk rHuPH20, were $12.4 million and $8.2 million as of December 31, 2017 and 
2016, respectively.

Other Collaborations

In December 2017, we and Alexion entered into a collaboration and license agreement, under which Alexion has the 
worldwide  license  to  develop  and  commercialize  products  combining  our  patented  rHuPH20  enzyme  with  Alexion 
proprietary biologics directed at up to four targets (the “Alexion Collaboration”). Targets, once selected, will be on an 
exclusive, global basis. As of December 31, 2017, Alexion has elected two specific exclusive targets. Alexion has the right 
to elect up to two additional targets for additional fees. The upfront license payment may be followed by event-based 
payments subject to Alexion’s achievement of specified development, regulatory and sales-based milestones. In addition, 
Alexion  will  pay  royalties  to  us  if  products  under  the  collaboration  are  commercialized.  Unless  terminated  earlier  in 
accordance with its terms, the Alexion Collaboration continues in effect until the later of: (i) expiration of the last to expire 
of the valid claims of or patents covering rHuPH20 or other specified patents developed under the collaboration which valid 
claim covers a product developed under the collaboration, and (ii) expiration of the last to expire royalty term for a product 
developed under the collaboration. The royalty term of a product developed under the Alexion Collaboration, with respect 
to each country, consists of the period equal to the longer of (a) duration of any valid claim of our patent covering rHuPH20 
or other specified patents developed under the collaboration which valid claim covers the product in such country or (b) 
ten years following the date of the first commercial sale of such product in such country. In the event such valid claims 
expire, the royalty rate is reduced for the remaining royalty term. Alexion may terminate the agreement prior to the expiration 
for any reason in its entirety upon 90 days prior written notice to us. Upon such termination, the license granted to Alexion 
(in total or with respect to the terminated target, as applicable) will terminate provided, however, that in the event of expiration 
of the agreement, the licenses granted will become perpetual, non-exclusive and fully paid. 

 In September 2017, we and BMS entered into a collaboration and license agreement, effective November 2017, under 
which BMS has the worldwide license to develop and commercialize products combining our rHuPH20 enzyme with BMS 
proprietary biologics directed at up to eleven targets (the “BMS Collaboration”). Targets, once selected, will be on an 
exclusive, global basis, with the exception of one co-exclusive target. As of December 31, 2017, BMS has elected several 
specified exclusive targets, including programmed death 1 (PD-1), and has the right to elect additional targets, some of 
which are subject to additional fees. The upfront license payment may be followed by event-based payments subject to 
BMS’s achievement of specified development, regulatory and sales-based milestones. In addition, BMS will pay royalties 
to us if products developed under the collaboration are commercialized. Unless terminated earlier in accordance with its 
terms, the BMS Collaboration continues in effect until the later of: (i) expiration of the last to expire of the valid claims of 
our patents covering rHuPH20 or other specified patents developed under the collaboration which valid claim covers a 
product developed under the collaboration, and (ii) expiration of the last to expire royalty term for a product developed 
under the collaboration. The royalty term of a product developed under the BMS Collaboration, with respect to each country, 
consists of the period equal to the longer of: (a) the duration of any valid claim of our patents covering rHuPH20 or other 
specified patents developed under the collaboration which valid claim covers the product in such country or (b) ten years 
following the date of the first commercial sale of such product in such country. In the event such valid claims expire, the 

F-22

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

royalty rate is reduced for the remaining royalty term. BMS may terminate the agreement prior to expiration for any reason 
in its entirety upon prior written notice to us. Upon any such termination, the license granted to BMS (in total or with respect 
to the terminated target, as applicable) will terminate provided, however, that in the event of expiration of the agreement, 
the licenses granted will become perpetual, non-exclusive and fully paid.

In December 2015, we and Lilly entered into a collaboration and license agreement, under which Lilly has the worldwide 
license to develop and commercialize products combining our patented rHuPH20 enzyme with Lilly proprietary biologics 
directed at up to five targets (the “Lilly Collaboration”). Targets, once selected, will be on an exclusive, global basis, with 
the exception of one semi-exclusive target. As of December 31, 2017, Lilly has elected two specified exclusive targets and 
one specified semi-exclusive target. Lilly has the right to elect up to two additional targets for additional fees. The upfront 
license  payment  may  be  followed  by  event-based  payments  subject  to  Lilly’s  achievement  of  specified  development, 
regulatory and sales-based milestones. In addition, Lilly will pay royalties to us if products under the collaboration are 
commercialized. Unless terminated earlier in accordance with its terms, the Lilly Collaboration continues in effect until the 
later of: (i) expiration of the last to expire of the valid claims of our patents covering rHuPH20 or other specified patents 
developed under the collaboration which valid claim covers a product developed under the collaboration, and (ii) expiration 
of the last to expire royalty term for a product developed under the collaboration. The royalty term of a product developed 
under the Lilly Collaboration, with respect to each country, consists of the period equal to the longer of: (a) the duration of 
any valid claim of our patents covering rHuPH20 or other specified patents developed under the collaboration which valid 
claim covers the product in such country or (b) ten years following the date of the first commercial sale of such product in 
such country. In the event such valid claims expire, the royalty rate is reduced for the remaining royalty term. Lilly may 
terminate the agreement prior to expiration for any reason in its entirety upon 60 days prior written notice to us. Upon any 
such termination, the license granted to Lilly (in total or with respect to the terminated target, as applicable) will terminate 
provided, however, that in the event of expiration of the agreement, the licenses granted will become perpetual, non-exclusive 
and fully paid.

In June 2015, we and AbbVie entered into a collaboration and license agreement, under which AbbVie has the worldwide 
license to develop and commercialize products combining our patented rHuPH20 enzyme with AbbVie proprietary biologics 
directed at up to nine targets (the “AbbVie Collaboration”). Targets, once selected, will be on an exclusive, global basis. As 
of December 31, 2017, AbbVie has elected one specified exclusive target, and subsequently returned the target. AbbVie has 
the right to elect up to eight additional targets for additional fees. The upfront license payment may be followed by event-
based  payments  subject  to AbbVie’s  achievement  of  specified  development,  regulatory  and  sales-based  milestones.  In 
addition, AbbVie will pay tiered royalties to us if products under the collaboration are commercialized. Unless terminated 
earlier in accordance with its terms, the AbbVie Collaboration continues in effect until the later of: (i) expiration of the last 
to expire of the valid claims of our patents covering rHuPH20 or other specified patents developed under the collaboration 
which valid claim covers a product developed under the collaboration, and (ii) expiration of the last to expire royalty term 
for a product developed under the collaboration. The royalty term of a product developed under the AbbVie Collaboration, 
with respect to each country, consists of the period equal to the longer of: (a) the duration of any valid claim of our patents 
covering rHuPH20 or other specified patents developed under the collaboration which valid claim covers the product in 
such country or (b) ten years following the date of the first commercial sale of such product in such country. In the event 
such valid claims expire, the royalty rate is reduced for the remaining royalty term. AbbVie may terminate the agreement 
prior to expiration for any reason in its entirety or on a target-by-target basis upon 90 days prior written notice to us. Upon 
any such termination, the license granted to AbbVie (in total or with respect to the terminated target, as applicable) will 
terminate provided, however, that in the event of expiration of the agreement, the licenses granted will become perpetual, 
non-exclusive and fully paid.

F-23

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

In December 2014, we and Janssen entered into a collaboration and license agreement, under which Janssen has the 
worldwide  license  to  develop  and  commercialize  products  combining  our  patented  rHuPH20  enzyme  with  Janssen 
proprietary  biologics  directed  at  up  to  five  targets  (the  “Janssen  Collaboration”). Targets,  once  selected,  will  be  on  an 
exclusive, global basis. As of December 31, 2017, Janssen has elected one specified exclusive target. Janssen has the right 
to elect four additional targets in the future upon payment of additional fees. In addition, Janssen will pay royalties to us if 
products under the collaboration are commercialized. Unless terminated earlier in accordance with its terms, the Janssen 
Collaboration continues in effect until the later of (i) expiration of the last to expire of the valid claims of our patents covering 
rHuPH20 or other specified patents developed under the collaboration which valid claim covers a product developed under 
the collaboration, and (ii) expiration of the last to expire royalty term for a product developed under the collaboration. The 
royalty term of a product developed under the Janssen Collaboration, with respect to each country, consists of the period 
equal to the longer of: (a) the duration of any valid claim of our patents covering rHuPH20 or other specified patents 
developed under the collaboration which valid claim covers the product in such country or (b) ten years following the date 
of the first commercial sale of such product in such country. In the event such valid claims expire, the royalty rate is reduced 
for the remaining royalty term. Janssen may terminate the agreement prior to expiration for any reason in its entirety or on 
a product-by-product basis upon 90 days prior written notice to us. Upon any such termination, the license granted to Janssen 
(in total or with respect to the terminated target, as applicable) will terminate provided, however, that in the event of expiration 
of the agreement, the licenses granted will become perpetual, non-exclusive and fully paid. 

In December 2012, we and Pfizer entered into a collaboration and license agreement, under which Pfizer has the 
worldwide license to develop and commercialize products combining our patented rHuPH20 enzyme with Pfizer proprietary 
biologics directed at up to six targets (the “Pfizer Collaboration”). Targets may be selected on an exclusive or non-exclusive 
basis. As of December 31, 2017, Pfizer has elected five specified exclusive targets and has returned two of its elected targets. 
Pfizer has the right to elect three additional targets in the future, two of which are contingent on payment of additional fees. 
In addition, Pfizer will pay royalties to us if products under the collaboration are commercialized. Unless terminated earlier 
in accordance with its terms, the Pfizer Collaboration continues in effect until the later of (i) expiration of the last to expire 
of the valid claims of our patents covering rHuPH20 or other specified patents developed under the collaboration which 
valid claim covers a product developed under the collaboration, and (ii) expiration of the last to expire royalty term for a 
product developed under the collaboration. The royalty term of a product developed under the Pfizer Collaboration, with 
respect to each country, consists of the period equal to the longer of: (a) the duration of any valid claim of our patents 
covering rHuPH20 or other specified patents developed under the collaboration which valid claim covers the product in 
such country or (b) ten years following the date of the first commercial sale of such product in such country. Royalties are 
subject to adjustment as set forth in the agreement. Pfizer may terminate the agreement prior to expiration for any reason 
in its entirety or on a target-by-target basis upon 30 days prior written notice to us. Upon any such termination, the license 
granted to Pfizer (in total or with respect to the terminated target, as applicable) will terminate, provided, however, that in 
the event of expiration of the agreement, the licenses granted will become perpetual, non-exclusive and fully paid.

Payments received under collaboration agreements for upfront license fees, license fees for the election of additional 
targets, maintenance fees and event-based payments since inception of the collaboration agreements are as follows (in 
thousands):

Alexion Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BMS Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lilly Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AbbVie Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Janssen Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pfizer Collaboration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total payments received. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

40,000
105,000
33,000
29,000
30,250
16,500
253,750

As of December 31,
2017

F-24

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

At the inception of the Pfizer, Janssen, AbbVie, Lilly, BMS and Alexion arrangements, we identified the deliverables 
in each arrangement to include the license, research and development services and supply of bulk rHuPH20. We have 
determined that the license, research and development services and supply of bulk rHuPH20 individually represent separate 
units of accounting, because each deliverable has standalone value. We determined that the rights to elect additional targets 
in the future upon the payment of additional license fees are substantive options that are not priced at a significant and 
incremental discount. Therefore, we determined for each collaboration that the rights to elect additional targets are not 
deliverables at the inception of the arrangement. The estimated selling prices for the units of accounting we identified were 
determined based on market conditions, the terms of comparable collaborative arrangements for similar technology in the 
pharmaceutical and biotech industry and entity-specific factors such as the terms of our previous collaborative agreements, 
our pricing practices and pricing objectives. The arrangement consideration was allocated to the deliverables based on the 
relative selling price method and the nature of the research and development services to be performed for the collaborator. 

The amount allocable to the delivered unit or units of accounting is limited to the amount that is not contingent upon 
the delivery of additional items or meeting other specified performance conditions (non-contingent amount). As such, we 
excluded from the allocable arrangement consideration the event-based payments, milestone payments, annual exclusivity 
fees and royalties regardless of the probability of receipt. Based on the results of our analysis, we allocated the following 
amounts to the license fee deliverable under the arrangement (in thousands):

Consideration 
allocated to 
license fees:

Alexion Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BMS Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lilly Collaboration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AbbVie Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Janssen Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pfizer Collaboration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total consideration allocated to license fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

40,000
101,400
33,000
23,000
15,250
12,500
225,150

We determined that the consideration allocated to the license fees were earned upon the granting of the worldwide, 
exclusive right to our technology to the collaborators in these arrangements. As a result, we recognized the consideration 
allocated to license fees as revenues under collaborative agreements in the period when such license fees were earned. We 
recognized revenue related to event-based payments or milestone payments under these collaborations of $15.0 million, 
$6.0 million, and $1.0 million for the years ended December 31, 2017, 2016 and 2015, respectively. 

The collaborators are each solely responsible for the development, manufacturing and marketing of any products 
resulting from their respective collaborations. We are entitled to receive payments for research and development services 
and supply of bulk rHuPH20 if requested by any collaborator. We recognize amounts allocated to research and development 
services as revenues under collaborative agreements as the related services are performed. We recognize amounts allocated 
to the sales of bulk rHuPH20 as revenues under collaborative agreements or product sales, as appropriate, when such bulk 
rHuPH20 has met all required specifications by the collaborators and the related title and risk of loss and damages have 
passed to the collaborators. We cannot predict the timing of delivery of research and development services and bulk rHuPH20 
as they are at the collaborators’ requests. 

Pursuant  to  the  terms  of  the  Roche  Collaboration  and  the  Pfizer  Collaboration,  certain  future  payments  meet  the 
definition of a milestone in accordance with the Milestone Method of Accounting. We are entitled to receive additional 
milestone payments under our collaboration agreements with Roche and Pfizer for the successful development of the elected 
targets in the aggregate of up to $62.5 million upon achievement of specified clinical development milestone events and 
up to $12.0 million upon achievement of specified regulatory milestone events in connection with specified regulatory 
filings and receipt of marketing approvals.

F-25

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

5. Certain Balance Sheet Items

Accounts receivable, net consisted of the following (in thousands):

Accounts receivable from product sales to collaborators . . . . . . . . . . . . . . . . .
Accounts receivable from revenues under collaborative agreements . . . . . . . .
Accounts receivable from other product sales . . . . . . . . . . . . . . . . . . . . . . . . . .
     Subtotal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowance for distribution fees and discounts. . . . . . . . . . . . . . . . . . . . . . . . . .
     Total accounts receivable, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inventories consisted of the following (in thousands):

Raw materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Work-in-process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finished goods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Total inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Prepaid expenses and other assets consisted of the following (in thousands):

Prepaid manufacturing expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid research and development expenses . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other prepaid expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Total prepaid expenses and other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less long-term portion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Total prepaid expenses and other assets, current . . . . . . . . . . . . . . . . . . . . .

December 31,
2017

December 31,
2016

$

$

$

$

$

$

18,475
2,142
2,075
22,692
(559)
22,133

December 31,
2017

377
2,131
2,638
5,146

December 31,
2017

2,337
7,793
2,585
6,717
19,432
5,553
13,879

$

$

$

$

$

$

7,854
6,151
2,234
16,239
(559)
15,680

December 31,
2016

761
12,850
1,012
14,623

December 31,
2016

9,663
8,613
1,661
1,530
21,467
219
21,248

Prepaid  manufacturing  expenses  include  slot  reservation  fees  and  other  amounts  paid  to  contract  manufacturing 
organizations. Such amounts are reclassified to work-in-process inventory once the manufacturing process has commenced.

Property and equipment, net consisted of the following (in thousands):

Research equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Computer and office equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leasehold improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Subtotal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Property and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

10,970
3,725
2,715
17,410
(13,890)
3,520

$

$

10,479
3,373
2,331
16,183
(11,919)
4,264

December 31,
2017

December 31,
2016

Depreciation and amortization expense was approximately $2.2 million , $2.4 million, and $1.7 million for the years 

ended December 31, 2017, 2016 and 2015, respectively.

F-26

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Accrued expenses consisted of the following (in thousands):

December 31,
2017

December 31,
2016

Accrued outsourced research and development expenses . . . . . . . . . . . . . . . . .
Accrued compensation and payroll taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued outsourced manufacturing expenses . . . . . . . . . . . . . . . . . . . . . . . . . .
Other accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Total accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less long-term portion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     Total accrued expenses, current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

18,757
13,384
2,504
5,396
40,041
440
39,601

Deferred revenue consisted of the following (in thousands):

Collaborative agreements

License fees and event-based payments:

Roche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Reimbursement for research and development services . . . . . . . . . . . . . . . . .
Product sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less current portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue, net of current portion . . . . . . . . . . . . . . . . . . . . . . . . . .

$

December 31,
2017

39,379
15,999
55,378
—
5,487
60,865
6,568
54,297

$

$

$

$

9,522
11,539
3,225
4,552
28,838
17
28,821

December 31,
2016

35,709
8,209
43,918
700
—
44,618
4,793
39,825

6. Long-Term Debt, Net

Royalty-backed Loan

In January 2016, through our wholly-owned subsidiary Halozyme Royalty LLC (“Halozyme Royalty”), we received 
a $150 million loan (the “Royalty-backed Loan”) pursuant to a credit agreement (the “Credit Agreement”) with BioPharma 
Credit Investments IV Sub, LP and Athyrium Opportunities II Acquisition LP (the “Royalty-backed Lenders”). Under the 
terms of the Credit Agreement, Halozyme Therapeutics, Inc. transferred to Halozyme Royalty the right to receive royalty 
payments from the commercial sales of ENHANZE products owed under the Roche Collaboration and Baxalta Collaboration 
(“Collaboration Agreements”). The royalty payments from the Collaboration Agreements will be used to repay the principal 
and interest on the loan (the “Royalty Payments”).  The Royalty-backed Loan bears interest at a per annum rate of 8.75% 
plus the three-month LIBOR rate. The three-month LIBOR rate is subject to a floor of 0.7% and a cap of 1.5%. The interest 
rate as of December 31, 2017 and 2016 was 10.25% and 9.71%, respectively. 

The Credit Agreement provides that none of the Royalty Payments were required to be applied to the Royalty-backed 
Loan prior to January 1, 2017, 50% of the Royalty Payments are required to be applied to the Royalty-backed Loan between 
January 1,  2017  and  January 1,  2018  and  thereafter  all  Royalty  Payments  must  be  applied  to  the  Royalty-backed 
Loan. However, the amounts available to repay the Royalty-backed Loan are subject to caps of $13.75 million per quarter 
in 2017, $18.75 million per quarter in 2018, $21.25 million per quarter in 2019 and $22.5 million per quarter in 2020 and 
thereafter. Amounts available to repay the Royalty-backed Loan will be applied first to pay interest and second to repay 
principal on the Royalty-backed Loan. Any accrued interest that is not paid on any applicable quarterly payment date, as 
defined, will be capitalized and added to the principal balance of the Royalty-backed Loan on such date. Halozyme Royalty 
will be entitled to receive and distribute to Halozyme any Royalty Payments that are not required to be applied to the Royalty-
backed Loan or which are in excess of the foregoing caps. 

F-27

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Because the repayment of the term loan is contingent upon the level of Royalty Payments received, the repayment 
term may be shortened or extended depending on the actual level of Royalty Payments. The final maturity date of the 
Royalty-backed Loan will be the earlier of (i) the date when principal and interest is paid in full, (ii) the termination of 
Halozyme Royalty’s right to receive royalties under the Collaboration Agreements, and (iii) December 31, 2050.  Currently, 
we estimate that the loan will be repaid in the first quarter of 2020. This estimate could be adversely affected and the 
repayment period could be extended if future royalty amounts are less than currently expected. Under the terms of the Credit 
Agreement, at any time after January 1, 2019, Halozyme Royalty may, subject to certain limitations, prepay the outstanding 
principal of the Royalty-backed Loan in whole or in part, at a price equal to 105% of the outstanding principal on the 
Royalty-backed Loan, plus accrued but unpaid interest. The Royalty-backed Loan constitutes an obligation of Halozyme 
Royalty, and is non-recourse to Halozyme. Halozyme Royalty retains its right to the Royalty Payments following repayment 
of the loan. 

As of December 31, 2017, we were in compliance with all covenants under the Royalty-backed Loan and there was 

no material adverse change in our business, operations or financial condition.

 During the year ended December 31, 2016, accrued interest in the amount of $13.2 million was capitalized and added 
to the principal balance of the Royalty-backed Loan. We began making principal and interest payments against the Royalty-
backed Loan in the first quarter of 2017 and therefore had no capitalized interest in the year ended December 31, 2017. In 
addition, we recorded accrued interest, which is included in accrued expenses, of $0.7 million as of December 31, 2017 
and 2016, respectively. 

 In connection with the Royalty-backed Loan, we paid the Royalty-backed Lenders a fee of $1.5 million and incurred 
additional debt issuance costs totaling $0.4 million, which includes expenses that we paid on behalf of the Royalty-backed 
Lenders and expenses incurred directly by us. Debt issuance costs and the lender fee have been netted against the debt as 
of December 31, 2017, and are being amortized over the estimated term of the debt using the effective interest method. For 
the years ended December 31, 2017 and 2016, the Company recognized interest expense, including amortization of the debt 
discount, related to the Royalty-backed Loan of $16.4 million and $14.5 million, respectively. The assumptions used in 
determining the expected repayment term of the debt and amortization period of the issuance costs requires that we make 
estimates that could impact the short- and long-term classification of these costs, as well as the period over which these 
costs will be amortized. The outstanding balance of the Royalty-backed Loan as of December 31, 2017 was $146.5 million, 
net of unamortized debt discount of $0.8 million.

Oxford and SVB Loan and Security Agreement

In December 2013, we entered into an Amended and Restated Loan and Security Agreement (the “Original Loan 
Agreement”)  with  Oxford  Finance  LLC  (“Oxford”)  and  Silicon  Valley  Bank  (“SVB”)  (collectively,  the  “Lenders”), 
amending and restating in its entirety our previous loan agreement with the Lenders, dated December 2012. The Original 
Loan Agreement provided for an additional $20 million principal amount of new term loan, bringing the total term loan 
balance to $50 million. The amended term loan facility was scheduled to mature on January 1, 2018. 

In January 2015, we entered into the second amendment to the Original Loan Agreement with the Lenders, amending 
and restating the term loan repayment schedules of the Original Loan Agreement. The amended and restated term loan 
repayment schedule provided for interest only payments through January 2016, followed by consecutive equal monthly 
payments of principal and interest in arrears starting in February 2016 and continuing through the previously established 
maturity date of January 1, 2018. Consistent with the original loan, the amended Original Loan Agreement provided for a 
7.55% interest rate on the term loan and a final payment equal to 8.5% of the original principal amount, or $4.25 million, 
which was due when the term loan became due or upon the prepayment of the facility. 

F-28

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

In June 2016, we entered into a Loan and Security Agreement (the “Loan Agreement”) with the Lenders, providing 
a senior secured loan facility of up to an aggregate principal amount of $70.0 million, comprising a $55.0 million draw in 
June 2016 and an additional $15.0 million tranche, which we had the option to draw during the second quarter of 2017 and 
did not exercise. The initial proceeds carry an interest rate of 8.25% and were partially used to pay the outstanding principal 
and final payment of $4.25 million owed on the Original Loan Agreement with the Lenders. The remaining proceeds are 
being  used  for  working  capital  and  general  business  requirements. The  repayment  schedule  provides  for  interest  only 
payments for the first 18 months, followed by consecutive equal monthly payments of principal and interest in arrears 
through the maturity date of January 1, 2021. The Loan Agreement provides for a final payment equal to 5.50% of the initial 
$55.0 million principal amount. The final payment is due when the Loan Agreement becomes due or upon the prepayment 
of the facility. We have the option to prepay the outstanding balance of the Loan Agreement in full, subject to a prepayment 
fee of 2% in the first year and 1% in the second year of the Loan Agreement. 

In connection with the Loan Agreement, the debt offering costs have been recorded as a debt discount in our condensed 
consolidated balance sheets which, together with the final payment and fixed interest rate payments, are being amortized 
and recorded as interest expense throughout the life of the loan using the effective interest rate method. 

The Loan Agreement is secured by substantially all of the assets of the Company and our subsidiary, Halozyme, Inc., 
except that the collateral does not include any equity interests in Halozyme, Inc., any of our intellectual property (including 
all licensing, collaboration and similar agreements relating thereto), and certain other excluded assets. The Loan Agreement 
contains customary representations, warranties and covenants by us, which covenants limit our ability to convey, sell, lease, 
transfer, assign or otherwise dispose of certain of our assets; engage in any business other than the businesses currently 
engaged in by us or reasonably related thereto; liquidate or dissolve; make certain management changes; undergo certain 
change of control events; create, incur, assume, or be liable with respect to certain indebtedness; grant certain liens; pay 
dividends and make certain other restricted payments; make certain investments; make payments on any subordinated debt; 
enter into transactions with any of our affiliates outside of the ordinary course of business or permit our subsidiaries to do 
the same; and make any voluntary prepayment of or modify certain terms of the Royalty-backed Loan. In addition, subject 
to  certain  exceptions,  we  are  required  to  maintain  with  SVB  our  primary  deposit  accounts,  securities  accounts  and 
commodities, and to do the same for our subsidiary, Halozyme, Inc.

The Loan Agreement also contains customary indemnification obligations and customary events of default, including, 
among other things, our failure to fulfill certain of our obligations under the Loan Agreement and the occurrence of a material 
adverse change which is defined as a material adverse change in our business, operations, or condition (financial or otherwise), 
a material impairment of the prospect of repayment of any portion of the loan, a material impairment in the perfection or 
priority of the Lender’s lien in the collateral or in the value of such collateral or the occurrence of an event of default under 
the Royalty-backed Loan. In the event of default by us under the Loan Agreement, the Lenders would be entitled to exercise 
their remedies thereunder, including the right to accelerate the debt, upon which we may be required to repay all amounts 
then outstanding under the Loan Agreement, which could harm our financial condition.

 As of December 31, 2017, we were in compliance with all covenants under the Loan Agreement and there was no 

material adverse change in our business, operations or financial condition.

Interest expense, including amortization of the debt discount, related to the Loan Agreement totaled $5.5 million, 
$20.0 million and $5.2 million for the years ended December 31, 2017, 2016 and 2015, respectively. Accrued interest, which 
is included in accrued expenses, was $0.4 million and $1.1 million as of December 31, 2017 and 2016, respectively. The 
outstanding term loan balance was $55.9 million as of December 31, 2017, inclusive of $1.3 million of accretion of the 
final payment and net of unamortized debt discount related to offering costs of $0.4 million.

F-29

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Future maturities and interest payments of long-term debt as of December 31, 2017, are as follows (in thousands):

2018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2021 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total minimum payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less amount representing interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross balance of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less unamortized debt discount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Present value of long-term debt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less current portion of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, less current portion and unamortized debt discount . . . . . . . . . . . . . . . . . . . . . . . . .

$

94,125

105,758

27,311

4,755

—

231,949
(26,792)
205,157
(2,806)
202,351
(77,211)
125,140

$

7. Share-based Compensation

We currently grant stock options, restricted stock awards and restricted stock units under the Amended and Restated 
2011 Stock Plan (“2011 Stock Plan”), which was approved by the stockholders on May 6, 2016 and provides for the grant 
of up to 44.2 million shares of common stock to selected employees, consultants and non-employee members of our Board 
of Directors as stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards and performance 
awards. The 2011 Stock Plan was approved by the stockholders. Awards are subject to terms and conditions established by 
the Compensation Committee of our Board of Directors. During the year ended December 31, 2017, we granted share-
based awards under the 2011 Stock Plan. At December 31, 2017, 13,023,641 shares were subject to outstanding awards and 
6,552,249 shares were available for future grants of share-based awards. 

Total share-based compensation expense related to share-based awards was comprised of the following (in 

thousands):

Research and development. . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Selling, general and administrative . . . . . . . . . . . . . . . . . . . . . .

Share-based compensation expense . . . . . . . . . . . . . . . . . . . $

13,080

17,590

30,670

$

$

11,470

14,115

25,585

$

$

9,795

11,043

20,838

Share-based compensation expense by type of share-based award (in thousands):

Year Ended December 31,

2017

2016

2015

Stock options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RSAs, RSUs and PRSUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2017

2016

2015

$

$

19,583

11,087

30,670

$

$

16,544

9,041

25,585

$

$

11,145

9,693

20,838

F-30

 
 
Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Total unrecognized estimated compensation cost by type of award and the weighted-average remaining requisite 

service period over which such expense is expected to be recognized (in thousands, unless otherwise noted):

December 31, 2017

Stock options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RSAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RSUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$
$

36,914
4,610
15,965

Unrecognized
Expense

Remaining
Weighted-
Average
Recognition 
Period
(years)

2.4
1.6
2.6

Cash  flows  resulting  from  tax  deductions  in  excess  of  the  cumulative  compensation  cost  recognized  for  options 
exercised (excess tax benefits) are classified as cash inflows provided by financing activities and cash outflows used in 
operating activities. 

Stock Options. Options granted under the Plans must have an exercise price equal to at least 100% of the fair market 
value of our common stock on the date of grant. The options generally have a maximum contractual term of ten years and 
vest at the rate of one-fourth of the shares on the first anniversary of the date of grant and 1/48 of the shares monthly 
thereafter. Certain option awards provide for accelerated vesting if there is a change in control (as defined in the Plans).

A summary of our stock option award activity as of and for the years ended December 31, 2017, 2016 and 2015 is as 

follows: 

Shares
Underlying
Stock Options

Weighted
Average Exercise
Price per Share

Weighted
Average
Remaining
Contractual
Term (years)

Aggregate
Intrinsic
Value

Outstanding at January 1, 2015 . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canceled/forfeited. . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2015 . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canceled/forfeited. . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2016 . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canceled/forfeited. . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2017 . . . . . . . . . . . .
Vested and expected to vest at December 31, 2017
Exercisable at December 31, 2017 . . . . . . . . . . . . .

6,353,892

3,973,604
(1,926,368)
(407,936)
7,993,192

4,466,306
(413,248)
(955,054)
11,091,196

2,717,614
(1,514,826)
(1,185,518)
11,108,466

11,108,466

5,493,802

$9.18

$16.26

$7.49

$10.64

$13.03

$9.03

$6.88

$12.42

$11.70

$12.60

$9.24

$11.89

$12.24

$12.24

$12.31

7.0

7.0

6.1

$90.8 million

$90.8 million

$44.7 million

The weighted average grant date fair values of options granted during the years ended December 31, 2017, 2016 and 
2015 were $7.86 per share, $5.36 per share and $9.60 per share, respectively. The total intrinsic value of options exercised 
during the years ended December 31, 2017, 2016 and 2015 was approximately $10.0 million, $1.4 million and $16.2 million, 
respectively.  Cash  received  from  stock  option  exercises  for  the  years  ended  December 31,  2017,  2016  and  2015  was 
approximately $14.0 million, $2.8 million and $14.4 million, respectively.

F-31

 
Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

The exercise price of stock options granted is equal to the closing price of the common stock on the date of grant. 
The fair value of each option award is estimated on the date of grant using the Black-Scholes-Merton option pricing model 
(“Black-Scholes model”). Expected volatility is based on historical volatility of our common stock. The expected term of 
options granted is based on analyses of historical employee termination rates and option exercises. The risk-free interest 
rate is based on the U.S. Treasury yield for a period consistent with the expected term of the option in effect at the time of 
the grant. The dividend yield assumption is based on the expectation of no future dividend payments. The assumptions used 
in the Black-Scholes model were as follows:

Year Ended December 31,

2017

2016

2015

Expected volatility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Average expected term (in years) . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

69.8-71.7%
5.6
1.73-2.13%
—

67.5-71.9%
5.4
1.00-1.90%
—

66.2-67.4%
5.6
1.34-1.92%
—

Restricted Stock Awards. RSAs are grants that entitle the holder to acquire shares of our common stock at zero cost. 
The shares covered by a RSA cannot be sold, pledged, or otherwise disposed of until the award vests and any unvested 
shares may be reacquired by us for the original purchase price following the awardee’s termination of service. The RSAs 
will generally vest at the rate of one-fourth of the shares on each anniversary of the date of grant. Annual grants of RSAs 
to the Board of Directors typically vest in approximately one year. 

The following table summarizes our RSA activity during the years ended December 31, 2017, 2016 and 2015:

Unvested at January 1, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Granted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unvested at December 31, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Granted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unvested at December 31, 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Granted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unvested at December 31, 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Number of
Shares

1,158,451

515,695
(721,990)
(140,676)
811,480

968,652
(296,831)
(180,198)
1,303,103

98,945
(514,613)
(108,485)
778,950

Weighted
Average
Grant Date
Fair Value

$10.26

$15.00

$10.11

$11.84

$13.13

$8.41

$12.76

$10.33
$10.09

$14.15

$10.23

$9.62

$10.59

The estimated fair value of the RSAs was based on the closing market value of our common stock on the date of 
grant. The  total  grant  date  fair  value  of  RSAs  vested  during  the  years  ended  December 31,  2017,  2016  and  2015  was 
approximately $5.3 million, $3.8 million and $7.3 million, respectively. The fair value of RSAs vested during the years 
ended December 31, 2017, 2016 and 2015, was approximately $6.6 million, $2.5 million and $13.9 million, respectively. 

F-32

 
Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Restricted Stock Units. A RSU is a promise by us to issue a share of our common stock upon vesting of the unit. The 

RSUs will generally vest at the rate of one-fourth of the shares on each anniversary of the date of grant. 

The following table summarizes our RSU activity during the years ended December 31, 2017, 2016 and 2015:

Unvested at January 1, 2015 . . . . . . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2015 . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2016 . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2017 . . . . . . . . . . . . . . .

Number of
Shares

462,322
422,492
(134,088)
(84,512)
666,214
796,582
(218,279)
(77,948)
1,166,569
1,378,273
(378,406)
(251,261)
1,915,175

Weighted
Average
Grant Date
Fair Value

Weighted
Average
Remaining
Contractual
Term (yrs)

Aggregate
Intrinsic
Value

$11.12
$14.75
$10.93
$10.86
$13.49
$8.17
$12.74
$10.99
$10.16
$12.13
$10.48
$11.11
$11.39

1.4

$38.8 million

The estimated fair value of the RSUs was based on the closing market value of our common stock on the date of 
grant. The  total  grant  date  fair  value  of  RSUs  vested  during  the  years  ended  December 31,  2017,  2016  and  2015  was 
approximately $4.0 million, $2.8 million and $1.5 million, respectively. The fair value of RSUs vested during the years 
ended December 31, 2017, 2016 and 2015 was approximately $4.7 million, $2.1 million and $1.8 million, respectively.

Performance Restricted Stock Units. A PRSU is a promise by us to issue a share of our common stock upon achievement 

of a specific performance condition.

The following table summarizes our PRSU activity during the years ended December 31, 2017, 2016 and 2015: 

Outstanding at January 1, 2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outstanding at December 31, 2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outstanding at December 31, 2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outstanding at December 31, 2017. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F-33

Number of
Shares

431,238

118,209
(83,380)
(156,360)
309,707

—
(30,037)
(79,415)
200,255

—

—
(200,255)
—

Weighted
Average
Grant Date
Fair Value
$8.91

$11.19

$9.48

$9.21

$9.48

—

$9.49

$9.44

$9.49

—

—

$9.49

—

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

The estimated fair value of the PRSUs was based on the closing market value of our common stock on the date of 
grant. The total grant date fair value and intrinsic value of PRSUs vested during the years ended December 31, 2017, 2016 
and 2015 was approximately zero, $0.3 million and $0.8 million, respectively.

8. Stockholders’ Equity (Deficit)

In May 2017, we completed an underwritten public offering pursuant to which we sold 11.5 million shares of common 
stock, including 1.5 million shares sold pursuant to the full exercise of an option to purchase additional shares granted to 
the underwriters. All of the shares were offered at a public offering price of $12.50 per share, generating $134.9 million in 
net proceeds, after deducting underwriting discounts and commissions and other offering expenses. We intend to use the 
net proceeds from this offering to fund continued development of our PEGPH20 oncology program and for other general 
corporate purposes.

During  the  years  ended  December 31,  2017,  2016  and  2015,  we  issued  an  aggregate  of  1,514,826,  413,248  and 
1,926,368 shares of common stock, respectively, in connection with the exercises of stock options, for net proceeds of 
approximately $14.0 million, $2.8 million and $14.4 million, respectively. For the years ended December 31, 2017, 2016 
and 2015, we issued 281,398, 134,944 and 82,069 shares of common stock, respectively, upon vesting of certain RSUs for 
which the RSU holders surrendered 97,008, 83,335 and 52,019 RSUs, respectively, to pay for minimum withholding taxes 
totaling approximately $1.9 million, $0.8 million and $0.7 million, respectively. In addition, we canceled 9,540 shares of 
common stock, net of issuances and issued 780,066 and 375,019 shares of common stock, net of cancellations in connection 
with grants of RSAs during the years ended December 31, 2017, 2016 and 2015, respectively.

9. Commitments and Contingencies

Operating Leases

Our  administrative  offices  and  research  facilities  are  located  in  San Diego,  California. We  lease  an  aggregate  of 
approximately 76,000 square feet of office and research space in four buildings. The leases commenced in June 2011 and 
November  2013  and  continue  through  January  2023.  The  leases  are  subject  to  approximately  3.0%  annual  increases 
throughout the terms of the leases. We also pay a pro rata share of operating costs, insurance costs, utilities and real property 
taxes. We received incentives under the leases, including tenant improvement allowances and reduced or free rent, for which 
the unamortized deferred rent balances associated with these incentives was $0.3 million and $0.4 million as of December 
31, 2017 and 2016, respectively.

In November 2015, we opened a satellite office in South San Francisco, California. We lease approximately 10,000
square feet of office space. The lease commenced in November 2015 and continues through January 2021. The lease is 
subject to approximately 3.0% annual increases throughout the term of the lease. We also pay a pro rata share of operating 
costs, insurance costs, utilities and real property taxes. We received incentives under the lease, including tenant improvement 
allowances and reduced or free rent, for which the unamortized deferred rent balances associated with these incentives was 
$0.3 million and $0.4 million as of December 31, 2017 and 2016, respectively.

Additionally, we lease certain office equipment under operating leases. Total rent expense was approximately $2.3 

million, $2.2 million and $1.9 million for the years ended December 31, 2017, 2016 and 2015, respectively.

Approximate annual future minimum operating lease payments as of December 31, 2017 are as follows (in thousands): 

Year:
2018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2021 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total minimum lease payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Operating
Leases

2,415
2,785

2,824

2,470

2,506

$

13,000

F-34

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Other Commitments 

In March 2010, we entered into a second Commercial Supply Agreement with Avid (the “Avid Commercial Supply 
Agreement”). Under the terms of the Avid Commercial Supply Agreement, we are committed to certain minimum annual 
purchases of bulk rHuPH20 equal to three quarters of forecasted supply. In addition, Avid has the right to manufacture and 
supply a certain percentage of bulk rHuPH20 that will be used in the collaboration products. At December 31, 2017, we 
had a $7.2 million minimum purchase obligation in connection with this agreement.

In June 2011, we entered into a services agreement with Patheon for the technology transfer and manufacture of 
Hylenex recombinant. At December 31, 2017, we had a $0.3 million minimum purchase obligation in connection with this 
agreement. 

Contingencies

We have entered into an in-licensing agreement with a research organization, which is cancelable at our option with 
90 days written notice. Under the terms of this agreement, we have received a license to the know-how and technology 
claimed, in certain patents or patent applications. We are required to pay fees, milestones and/or royalties on future sales 
of products employing the technology or falling under claims of a patent, and some of the agreements require minimum 
royalty payments. We continually reassess the value of the license agreement. If the in-licensed and research candidate is 
successfully developed, we may be required to pay milestone payments of approximately $8.0 million over the life of this 
agreement in addition to royalties on sales of the affected products. Due to the uncertainties of the development process, 
the timing and probability of the remaining milestone and royalty payments cannot be accurately estimated. 

Legal Contingencies

From time to time, we may be involved in disputes, including litigation, relating to claims arising out of operations 
in the normal course of our business. Any of these claims could subject us to costly legal expenses and, while we generally 
believe that we have adequate insurance to cover many different types of liabilities, our insurance carriers may deny coverage 
or our policy limits may be inadequate to fully satisfy any damage awards or settlements. If this were to happen, the payment 
of any such awards could have a material adverse effect on our consolidated results of operations and financial position. 
Additionally, any such claims, whether or not successful, could damage our reputation and business. We currently are not 
a party to any legal proceedings, the adverse outcome of which, in management’s opinion, individually or in the aggregate, 
would have a material adverse effect on our consolidated results of operations or financial position.

10.  Income Taxes

The Tax Cuts and Jobs Act (the “Act”) was enacted in December 2017. The Act reduces the U.S. federal corporate 
tax rate from 35% to 21%. As of December 31, 2017, we have not completed our accounting for the tax effects of the Act; 
however, we have made a reasonable estimate of the effects on our existing deferred tax balances. We remeasured certain 
deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future. However, we are 
still analyzing certain aspects of the Act and refining our calculations, which could potentially affect the measurement of 
these  balances  or  potentially  give  rise  to  new  deferred  tax  amounts.  The  provisional  amount  recorded  related  to  the 
remeasurement of our deferred tax balance was $17.1 million. The provisional amount of $17.1 million was fully offset by 
a change in the valuation allowance.

Total income (loss) before income taxes summarized by region were as follows (in thousands):

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss) before income taxes . . . . . . . . . . . . . . . . . . . . .

$

$

Year Ended December 31,

2017
160,938
(99,328)
61,610

2016

2015

$

$

$

6,384
(108,245)
(101,861) $

11,724
(43,955)
(32,231)

F-35

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Significant components of our net deferred tax assets/(liabilities) were as follows (in thousands): 

Deferred tax assets:

Net operating loss carryforwards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development and orphan drug credits . . . . . . . . . . . . . . . . . . . . . .
Share-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternative minimum tax credit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valuation allowance for deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax assets, net of valuation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deferred tax liabilities:

December 31,

2017

2016

$

32,630

$

103,296

8,815

75,224

7,423

5,532

2,270

131,894
(126,189)
5,705

15,354

73,701

8,844

1,494

1,021

203,710
(203,370)
340

Depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net deferred tax asset (liability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

(173)
(173)
5,532

$

(340)
(340)
—

 A valuation allowance of $126.2 million and $203.4 million has been established to offset the net deferred tax assets 
as of December 31, 2017 and 2016, respectively, as realization of such assets is uncertain. Under the Act, the AMT credit 
carryovers can be used to offset regular tax liability for taxable years beginning after 2017. If not utilized before 2022, any 
remaining AMT credit carryover will be fully refundable. Accordingly, the recognized deferred tax asset, on a provisional 
basis, as of December 31, 2017 is the AMT credit carryover that will either be utilized or refunded. 

Income tax expense was comprised of the following components (in thousands):

Current - federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current - state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred - federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred - state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2017

2016

2015

$

$

4,051

$

120
(5,532)
—
(1,361) $

1,145

$

17

—

—

1,162

$

—

—

—

—

—

F-36

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

The provision for income taxes on earnings subject to income taxes differs from the statutory federal income tax rate 

due to the following (in thousands):

Federal income tax expense (benefit) at 34% . . . . . . . . . . . . . . . .
State income tax benefit, net of federal income tax impact. . . . . .
(Decrease) increase in valuation allowance. . . . . . . . . . . . . . . . . .
Enactment of the Tax Cuts and Jobs Act . . . . . . . . . . . . . . . . . . . .
Foreign income subject to tax at other than federal statutory rate.
Shared-based compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-deductible expenses and other . . . . . . . . . . . . . . . . . . . . . . . .
Research and development credits, net . . . . . . . . . . . . . . . . . . . . .
Orphan drug credits, net of federal add back. . . . . . . . . . . . . . . . .

Year Ended December 31,

2017

2016

2015

$

20,947

$

930
(77,181)
17,132

33,674

525

5,779

4,162
(7,329)
(1,361) $

$

(34,633) $
(653)
11,252

—

36,803

3,735

698
(1,084)
(14,956)
1,162

$

(10,959)
5,524

4,045

—

14,945
(4,990)
6,457
(3,861)
(11,161)
—

 At December 31, 2017, our unrecognized tax benefit and uncertain tax positions were $14.4 million. None of this 
amount would affect the effective tax rate and $14.4 million would affect the effective tax rate in the event the valuation 
allowance was removed. Of the unrecognized tax benefits, we do not expect any significant changes to occur in the next 
12 months. Interest and/or penalties related to uncertain income tax positions are recognized by us as a component of income 
tax expense. For the years ended December 31, 2017, 2016 and 2015, we recognized no interest or penalties.

The following table summarizes the activity related to our unrecognized tax benefits (in thousands):

Year Ended December 31,

2017

2016

2015

Gross unrecognized tax benefits at beginning of period . . . . . . . .
Increases in tax positions for prior years . . . . . . . . . . . . . . . . . . . .
Decreases in tax positions for prior years . . . . . . . . . . . . . . . . . . .
Increases in tax positions for current year . . . . . . . . . . . . . . . . . . .
Gross unrecognized tax benefits at end of period . . . . . . . . . . . . .

$

12,799

$

4,898

$

—
(2,518)
4,147

5,615
(4,898)
7,184

$

14,428

$

12,799

$

—

—

—

4,898

4,898

At December 31, 2017, we had federal, California and other state tax net operating loss carryforwards of approximately 

$88.5 million, $243.1 million and $13.9 million, respectively. 

The following table shows key expiration dates of the federal and California net operating loss carryforwards (in 

thousands):

Net Operating
Loss

2018

Expires in:

2021 and
beyond

2028 and
beyond

Federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

88,516

243,080

— $

88,516

—

—

— $

243,080

At  December 31,  2017,  we  had  federal  and  California  research  and  development  tax  credit  carryforwards  of 
approximately $19.1 million and $11.7 million, respectively. The federal research and development tax credits will begin 
to  expire  in  2024  unless  previously  utilized.  The  California  research  and  development  tax  credits  will  carryforward 
indefinitely until utilized. Additionally, we had Orphan Drug Credit carryforwards of $57.3 million which will begin to 
expire in 2035. 

F-37

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

Pursuant to Internal Revenue Code Section 382, the annual use of the net operating loss carryforwards and research 
and development tax credits could be limited by any greater than 50% ownership change during any three year testing 
period. As  a  result  of  any  such  ownership  change,  portions  of  our  net  operating  loss  carryforwards  and  research  and 
development tax credits are subject to annual limitations. A Section 382 analysis regarding the limitation of the net operating 
losses and research and development credits was completed as of November 1, 2017. Based upon the analysis, we do not 
believe an ownership change occurred during 2017. Based upon previous analysis it was determined that ownership changes 
occurred in prior years; however, the annual limitations on net operating loss and research and development tax credit 
carryforwards will not have a material impact on the future utilization of such carryforwards.

We do not provide for U.S. income taxes on the undistributed earnings of our foreign subsidiaries as it is our intention 
to utilize those earnings in the foreign operations for an indefinite period of time. At December 31, 2017 and 2016, there 
were no undistributed earnings in foreign subsidiaries.

We are subject to taxation in the U.S. and in various state and foreign jurisdictions. Our tax years for 1998 and forward 
are subject to examination by the U.S. and California tax authorities due to the carryforward of unutilized net operating 
losses and research and development credits.

A new Swiss subsidiary, Halozyme Switzerland GmbH, was formed during the fourth quarter of 2016 and obtained 
a tax ruling from Canton of Basel Stadt for its operations in Switzerland. The tax ruling is dated December 21, 2016, and 
will continue for a period of ten years, not to extend beyond December 31, 2026. The combined income tax burden at the 
federal, cantonal and communal level will not exceed 10% during the period covered by the ruling. As a result of foreign 
losses and a full valuation allowance, no net tax benefit was derived for the year ended December 31, 2017 as a result of 
the tax ruling. 

11.  Employee Savings Plan

We  have  an  employee  savings  plan  pursuant  to  Section 401(k)  of  the  Internal  Revenue  Code. All  employees  are 
eligible to participate, provided they meet the requirements of the plan. We are not required to make matching contributions 
under the plan. However, we voluntarily contributed to the plan approximately $1.2 million, $1.0 million and $0.7 million
for the years ended December 31, 2017, 2016 and 2015, respectively.

F-38

Halozyme Therapeutics, Inc.

Notes to Consolidated Financial Statements — (Continued)

12.  Summary of Unaudited Quarterly Financial Information

The following is a summary of our unaudited quarterly results for the years ended December 31, 2017 and 2016 (in 

thousands):

Quarter Ended

2017 (Unaudited):
Total revenues (1) (2) . . . . . . . . . . . . . . . . . . . . . . .
Gross profit on product sales. . . . . . . . . . . . . . . .

Total operating expenses . . . . . . . . . . . . . . . . . . .

Net income (loss). . . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss) per share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shares used in computing net income (loss) per
   share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2016 (Unaudited):
Total revenues . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross profit on product sales. . . . . . . . . . . . . . . .

Total operating expenses . . . . . . . . . . . . . . . . . . .
Net loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net loss per share, basic and diluted . . . . . . . . . .

Shares used in computing basic and diluted net
   loss per share . . . . . . . . . . . . . . . . . . . . . . . . . .

_______________

$

$

$

$

$

$

$

$

$

$

$

March 31,

June 30,

33,750

September 30,
63,731
$

December 31,
189,564
$

29,568

3,890

$

$

$
57,094
(32,897) $

4,992

$

$
59,228
(30,763) $

5,257

55,654

2,749

$

$

$

$

$

5,105

63,635

123,882

0.87

0.85

(0.26) $
(0.26) $

(0.23) $
(0.23) $

0.02

0.02

128,615

128,615

134,013

134,013

141,190

143,236

141,718

145,633

Quarter Ended

March 31,

June 30,

42,499

5,178

$

$

58,668
$
(19,816) $
(0.16) $

33,336

September 30,
31,853
$

December 31,
39,003
$

5,391

$

4,197

$

5,420

55,059
$
(26,875) $
(0.21) $

54,596
$
(28,946) $
(0.23) $

61,578
(27,386)
(0.21)

127,615

127,958

128,154

128,185

(1)  Revenues for the quarter ended December 31, 2017 included $101.4 million, $40.0 million and $15.0 million

in revenue under collaborative arrangements from BMS, Alexion and Janssen, respectively.

(2)  Revenues  for  the  quarter  ended  September  30,  2017  included  $30.0  million  in  revenue  under  collaborative 

arrangements from the 2017 Roche Collaboration. 

F-39

 
Halozyme Therapeutics, Inc.

Schedule II

Valuation and Qualifying Accounts
 (in thousands)

Balance at
Beginning of
Period

Additions

Deductions

Balance at
End of Period

For the year ended December 31, 2017

Accounts receivable allowances (1) . . . . . . . . . . . . .

For the year ended December 31, 2016

Accounts receivable allowances (1) . . . . . . . . . . . . .

For the year ended December 31, 2015

Accounts receivable allowances (1) . . . . . . . . . . . . .

$

$

$

_______________

559

967

611

$

$

$

4,645

4,795

4,150

$

$

$

(4,645) $

(5,203) $

(3,794) $

559

559

967

(1)  Allowances are for chargebacks, prompt payment discounts and distribution fees related to Hylenex recombinant 

product sales. 

F-40

Dear Fellow 

Shareholders —

25%

Royalty revenue increase 

over the previous year. 

$469M

Cash position exiting 2017

CORPORATE INFORMATION

ABOUT HALOZYME, INC.

Halozyme Therapeutics is a biotechnology company focused on developing and commercializing 
novel oncology therapies that target the tumor microenvironment. Halozyme’s lead proprietary 
program, investigational drug PEGPH20, applies a unique approach to targeting solid tumors, 
allowing increased access of co-administered cancer drug therapies to the tumor in animal 
models. PEGPH20 is currently in development for metastatic pancreatic cancer, non-small cell 
lung cancer, gastric cancer, metastatic breast cancer and has potential across additional cancers in 
combination with different types of cancer therapies. In addition to its proprietary product portfolio, 
Halozyme has established value-driving partnerships with leading pharmaceutical companies 
including Roche, Shire/Baxalta, Pfizer, Janssen, Abbvie, Lilly, Bristol-Myers Squibb and Alexion for 
its ENHANZE® drug delivery technology. Halozyme is headquartered in San Diego, California.  
For more information visit www.halozyme.com.

GENERAL INFORMATION

BOARD OF DIRECTORS

EXECUTIVE TEAM

Corporate Headquarters
11388 Sorrento Valley Road
San Diego, CA 92121
858-794-8889
info@halozyme.com
www.halozyme.com

Outside Legal Counsel
DLA Piper LLP (U.S.)
San Diego, California

Independent Auditors
Ernst & Young LLP
San Diego, California

Transfer Agent
Corporate Stock Transfer, Inc. 
3200 Cherry Creek Drive South,  
Suite 430  
Denver, CO 80209
303-282-4800

Form 10-K Annual Report
Each Stockholder may receive
without charge a copy of the
Annual Report on form 10-K filed
with the Securities and Exchange
Commission by written request
addressed to Investor Relations. 

Stock Listing
Halozyme Therapeutics, Inc. 
common stock trades on the 
Nasdaq Stock Market under the 
symbol HALO.

generation ALXN 1210. In fact, we project royalty potential of 

  pancreatic and gastric cancer. In addition, we dosed the  

approximately $1 billion in 2027 from multiple indication 

  first patients in a study to evaluate the combination in  

approvals and global launches of our currently commercialized 

  cholangiocarcinoma and gall bladder cancer patients;

products using ENHANZE and seven other targets in clinical 

development or planned for clinical development with 

ENHANZE. Actual royalties will depend on indications 

approved, geographies launched and market share attained.

•  Advancing our exploration of PEGPH20’s pan-tumor potential,  

  with the possibility of reporting response-rate data from two  

  Phase 1 studies in the second half of 2018. 

With the progress we made in 2017, it is easy to see why we 

PEGPH20 is a targeted therapy, with a companion diagnostic 

are so optimistic about the road ahead and the long-term value 

to select patients most likely to respond to it. The combination 

created for shareholders by the ENHANZE technology. 

of a deep body of preclinical evidence, the encouraging 

Turning to our oncology pillar, which is anchored by PEGPH20, 

2017 began with a major derisking event as we reported 

encouraging data from our randomized, controlled HALO-202 

Phase 2 study in approximately 270 patients. These results 

garnered excellent attention through oral presentations at 

major medical fora during the year and supported strong 

HALO-202 data and the diagnostic support a good potential for 

PEGPH20 to make a meaningful difference in the lives of 

patients with devastating and difficult to treat HA-High 

pancreas cancer. This is what motivates me and our team, and 

what we believe will ultimately provide the greatest returns to 

our shareholders. 

progress in enrollment in our HALO-301 Phase 3 study in 

We look forward to achieving the target number of 

metastatic pancreatic cancer patients with the same 

progression-free survival events in our Phase 3 study late in 

chemotherapy combination of PEGPH20 plus ABRAXANE® 

the fourth quarter of 2018, at which time we expect to have 

(nab-paclitaxel) and gemcitabine. HALO-202 showed a 

approximately 500 patients enrolled. 

statistically significant progression-free survival improvement 

in patients retrospectively identified to have high levels of 

hyaluronan (HA), and data from the study were recently 

published in the peer reviewed Journal of Clinical Oncology.  

In HALO-301, we are prospectively selecting patients with the 

HA-High biomarker. PEGPH20 temporarily degrades HA, a 

glycosaminoglycan or a chain of natural sugars in the body that 

can accumulate around certain tumor types and impede 

access of cancer therapies to the tumor.

In addition to the progress with HALO-301, we achieved a 

number of value-enhancing goals and milestones in the 

PEGPH20 program, including:

The milestones we achieved in 2017 have also put us in the 

strongest financial position in company history. Revenue for 

the year was $317 million, and we exited the year very 

well-financed with $469 million in cash. 

I want to thank you for your continued investment, support, 

encouragement, questions and thoughtful input. During 2017, 

we saw the benefits of our strategy taking hold. I also want to 

thank patients who participate in our clinical studies. Without 

their courage, our work would not be possible. Finally, we 

would not be where we are today as a company without the 

dedication of our entire Halozyme team. I am deeply grateful 

for their commitment and look forward to the progress we will 

•  Expanding our Phase 1b study of PEGPH20 in combination  

continue to make in 2018. 

  with KEYTRUDA® (pembrolizumab) in lung and gastric  

  cancer patients;

Best regards,

•  Dosing the first patients in three clinical studies under an  

  agreement with Genentech, a member of the Roche  

  Group, formed in 2016 to evaluate PEGPH20 and  

  TECENTRIQ® (atezolizumab) in up to eight different  

tumor types. This is an efficient way for Halozyme to  

  expand the study of PEGPH20, with Roche funding and  

  conducting studies in up to six tumor types, beginning with  

Jean-Pierre Bizzari, M.D.  
Former Executive Vice President and Global 
Head of Oncology, Celgene Corporation

Helen Torley, M.B. Ch.B., M.R.C.P 
President and Chief Executive Officer

James M. Daly  
Former Executive Vice President and Chief 
Commercial Officer, Incyte Corporation 

Jeffrey W. Henderson  
Advisory Director to Berkshire Partners LLC; 
Former Chief Financial Officer,  
Cardinal Health, Inc.

Kenneth J. Kelley 
Trustee, Sabin Vaccine Institute

Randal J. Kirk 
Chairman and Chief Executive Officer, 
Intrexon Corporation; Senior Managing 
Director and Chief Executive Officer, Third 
Security, LLC

Connie L. Matsui 
Chairman of the Board, Halozyme 
Therapeutics; Former Executive Vice 
President, Knowledge and Innovation 
Networks, Biogen Idec

Dimitrios Chondros 
Senior Vice President and  
Chief Medical Officer

William J. Fallon 
Senior Vice President, Global ENHANZE 
Program Lead, CMC Operations 
& Strategic Alliances

Michael J. LaBarre, Ph.D. 
Vice President and Chief Scientific Officer

Harry J. Leonhardt, Esq. 
Senior Vice President, General Counsel, 
Chief Compliance Officer and  
Corporate Secretary

Jim S. Mazzola 
Vice President, Corporate Communication 
and Investor Relations

Michael E. Paolucci 
Vice President and Chief Human  
Resources Officer

Matthew L. Posard 
President and Chief Commercial Officer, 
GenePeeks, Inc.

Laurie D. Stelzer 
Senior Vice President and Chief  
Financial Officer

Helen Torley, M.B. Ch.B., M.R.C.P. 
President and Chief Executive Officer, 
Halozyme Therapeutics

Kristina Vlaovic 
Vice President, Regulatory and Safety

Homa Yeganegi 
Senior Vice President, Global PEGPH20 
Program Lead

SAFE HARBOR STATEMENT

This Annual Report contains forward-looking statements regarding our products in development, 
anticipated clinical, regulatory and commercial milestones, business intentions, financial conditions 
and results of operations and prospects and other statements concerning future matters. Words 
such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and similar 
expressions or variations of such words are intended to identify forward-looking statements, but 
are not the exclusive means of identifying forward-looking statements in the Annual Report. Actual 
results could differ materially from the expectations contained in forward-looking statements as a 
result of several factors, including unexpected expenditures and costs, unexpected results or delays 
in development and regulatory review, regulatory approval requirements, unexpected adverse 
events and competitive conditions. These and other factors that may result in differences are 
discussed in greater detail in the Company’s reports on Forms 10-K, 10-Q, and other filings with the 
Securities and Exchange Commission. 

 
 
 
H

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2017 ANNUAL REPORT

Strategic Partnerships.

Focus on Patients.

Halozyme Therapeutics, Inc.
11388 Sorrento Valley Road
San Diego, CA 92121
858-794-8889
info@halozyme.com
www.halozyme.com

Copyright © 2018. Halozyme, Inc.  
All rights reserved. All trademarks belong 
to their respective owners. 

On the cover:
In 2017, Halozyme hosted meetings with investigators 
and clinicians in cities around the world to prepare more 
than 200 sites in 22 countries for the screening and 
enrolling of pancreatic cancer patients in the company’s 
Phase 3 HALO-301 Pancreatic clinical study.

PRODUCT PIPELINE

PRODUCT, COLLABORATION PRODUCTS 

THERAPEUTIC 

RESEARCH FOCUS/

DEVELOPMENT 

AND PRODUCT CANDIDATES

AREA

INDICATION (PARTNER)

STAGE

Oncology Pipeline 

and Product 

Candidates

PEGPH20 with ABRAXANE®  

(nab-paclitaxel) and gemcitabine

Oncology

Pancreas Cancer

Phase 3

PEGPH20 with KEYTRUDA® 

Oncology

Gastric Cancer/Non-

Phase 1

(pembrolizumab)

Small Cell Lung Cancer

PEGPH20 with HALAVEN®  

Oncology

Breast Cancer 

Phase 1*

PEGPH20 with TECENTRIQ®  

Oncology

Pancreas Cancer 

Phase 1

(eribulin)

(atezolizumab)

(atezolizumab)

(atezolizumab)

PEGPH20 with TECENTRIQ®  

Oncology

PEGPH20 with TECENTRIQ®  

Oncology

(Eisai)

(Genentech)

Gastric Cancer 

(Genentech)

Gall Bladder Cancer/ 

Cholangiocarcinoma

Phase 1

Phase 1

PEG-ADA2: PEGylated-Human 

Oncology

Various

Preclinical

Adenosine Deaminase 2

*No further clinical development planned on the Phase 2 portion of this study.

Proprietary 

Approved Product

HYLENEX®  recombinant 

(hyaluronidase human injection)

Various

Adjuvant for subcutaneous 

U.S. Approved

fluid delivery for dispersion 

& absorption of other 

injected drugs 

ENHANZE® 

Collaboration 

Approved Products

Roche

HERCEPTIN®  SC (trastuzumab) 

Oncology

Breast Cancer 

Oncology

Multiple blood 

Cancers

Cancers

Oncology

Multiple blood 

U.S. approved

EU approved and other 

countries outside U.S.

EU approved and other 

countries outside U.S.

MABTHERA®  SC (rituximab) 

(Outside of the U.S.)

RITUXAN HYCELA®   

(rituximab/hyaluronidase human) 

(U.S.)

Baxalta

10% (Human) with Recombinant  

Human Hyaluronidase] 

HYQVIA®  [Immune Globulin Infusion  

Immunology

Primary 

Immunodeficiency

ENHANZE® 

Collaboration  

Product Candidates

Roche  (Total of 9 potential targets)

PERJETA®  (pertuzumab) 

Oncology

Breast Cancer

Phase 1 

Approved for adults in 

the EU, U.S., Puerto Rico 

and Australia; Pediatric 

indication approved in EU

(Plans for Phase 3 fixed-

dose combination with 

Herceptin in 2018)

Phase 1

Phase 3 

Phase 3 

Phase 3 

Phase 3 

Phase 2 

Phase 1

Phase 1

Preclinical

Preclinical

Oncology

Amyloidosis 

Smoldering Myeloma 

Multiple Myeloma (2L+) 

Multiple Myeloma (4L) 

Multiple Myeloma (1L+)

Multiple Myeloma (3L+)

Undisclosed

Pfizer   (Total of 6 potential targets)

Janssen   (Total of 5 potential targets)

DARZALEX® (daratumumab)

AbbVie   (Total of 9 potential targets)

Lilly   (Total of 5 potential targets)

Undisclosed

Bristol-Myers Squibb    

(Total of 11 potential targets)

PD-1 target

Oncology

Alexion   (Total of 4 potential targets)

ALXN1210 SC

Various

All trademarks belong to their respective owners.