Quarterlytics / Financial Services / Banks - Regional / Brookline Bancorp / FY2020 Annual Report

Brookline Bancorp
Annual Report 2020

BRKL · NASDAQ Financial Services
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Ticker BRKL
Exchange NASDAQ
Sector Financial Services
Industry Banks - Regional
Employees 201-500
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FY2020 Annual Report · Brookline Bancorp
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 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, 2020,
or

☐

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

for the transition period from           N/A           to                                 .
Commission File Number: 0-23695
BROOKLINE BANCORP, INC.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of 
incorporation or organization)

04-3402944
(I.R.S. Employer Identification No.)

131 Clarendon Street
(Address of principal executive offices)

Boston

MA

02116
(Zip Code)

Securities registered pursuant to Section 12(b) of the Act:

(617) 425-4600
(Registrant's telephone number, including area code)

Title of Each Class
Common Stock, par value of $0.01 per share

Trading Symbol(s)
BRKL

Name of Each Exchange on Which Registered
Nasdaq Global Select Market

Securities registered pursuant to Section 12 (g) of the Act: None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act of 1934. Yes ☐    No ☒
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Act of 1934. 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 requirement for the past 90 days. Yes ☒    No ☐

Indicate by check mark whether the registrant (1) has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months

(or for such shorter period that the registrant was required to submit such files). Yes ☒    No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or 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.

Large accelerated filer

Non-accelerated filer

☒

☐

Accelerated filer

Smaller Reporting Company

Emerging growth company

☐

☐

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a)

of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act

(15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.                      ☒

Indicate by check mark if the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐    No ☒

 
As of June 28, 2020, the last business day of the registrant's most recently completed second fiscal quarter, the aggregate market value of the shares of common stock held by nonaffiliates, based upon the closing price per share of

the registrant's common stock as reported on NASDAQ, was approximately $0.8 billion.

As of February 26, 2021, there were 85,177,172 and 78,192,589 shares of the registrant's common stock, par value $0.01 per share, issued and outstanding, respectively.

Table of Contents

Part I

Item 1.

Item 1A.

Item 1B.

Item 2.

Item 3.

Item 4.

Part II

Item 5.

Item 6.

Item 7.

Item 7A.

Item 8.

Item 9.

Item 9A.

Item 9B.

Part III

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

Part IV

Item 15.

Item 16.

Signatures

BROOKLINE BANCORP, INC. AND SUBSIDIARIES
2020 FORM 10-K

Table of Contents

Business

Risk Factors

Unresolved Staff Comments

Properties

Legal Proceedings

Mine Safety Disclosures

Market for the 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

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

Exhibits and Financial Statement Schedules

Form 10-K Summary

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FORWARD-LOOKING STATEMENTS

Certain statements contained in this Annual Report on Form 10-K that are not historical facts may constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E

of the Securities Exchange Act of 1934, as amended, and are intended to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties. These
statements, which are based on certain assumptions and describe Brookline Bancorp, Inc.'s (the "Company's") future plans, strategies and expectations, can generally be identified by the use of the words "may," "will," "should," "could,"
"would," "plan," "potential," "estimate," "project," "believe," "intend," "anticipate," "expect," "target" and similar expressions. These statements include, among others, statements regarding the Company's intent, belief or expectations with
respect to economic conditions, trends affecting the Company's financial condition or results of operations, and the Company's exposure to market, liquidity, interest-rate and credit risk.

Forward-looking statements are based on the current assumptions underlying the statements and other information with respect to the beliefs, plans, objectives, goals, expectations, anticipations, estimates and intentions of
management and the financial condition, results of operations, future performance and business are only expectations of future results. Although the Company believes that the expectations reflected in the Company’s forward-looking
statements are reasonable, the Company’s actual results could differ materially from those projected in the forward-looking statements as a result of, among other factors, the negative impacts and disruptions of the COVID-19 pandemic
and measures taken to contain its spread on the Company’s employees, customers, business operations, credit quality, financial position, liquidity and results of operations; continued deterioration in employment levels; turbulence in the
capital and debt markets; changes in interest rates; competitive pressures from other financial institutions; the effects of weakness in general economic conditions on a national basis or in the local markets in which the Company operates;
changes in consumer behavior due to changing political, business and economic conditions, including increased unemployment, or legislative or regulatory initiatives; changes in the value of securities and other assets in the Company’s
investment portfolio; increases in loan and lease default and charge-off rates; the adequacy of allowances for loan and lease losses; decreases in deposit levels that necessitate increases in borrowing to fund loans and investments;
operational risks including, but not limited to, cybersecurity incidents, fraud, natural disasters and future pandemics; changes in regulation; reputational risks relating to the Company’s participation in the Paycheck Protection Program (the
"PPP"), and other pandemic-related legislative and regulatory initiatives and programs; the possibility that future credit losses may be higher than currently expected; due to changes in economic assumptions and adverse economic
developments; the risk that goodwill and intangibles recorded in the Company’s financial statements will become impaired; and changes in assumptions used in making such forward-looking statements; and the other risks and
uncertainties detailed in Item 1A, "Risk Factors." Forward-looking statements speak only as of the date on which they are made. The Company does not undertake any obligation to update any forward-looking statement to reflect
circumstances or events that occur after the date the forward-looking statements are made.

PART I

Item 1.    Business

General

Brookline Bancorp, Inc. (the "Company"), a Delaware corporation, is the holding company for Brookline Bank and its subsidiaries, Bank Rhode Island ("BankRI") and its subsidiaries, and Brookline Securities Corp.

Brookline Bank, headquartered in Boston, Massachusetts, has three wholly-owned subsidiaries, Longwood Securities Corp. ("LSC"), First Ipswich Insurance Agency, and Eastern Funding LLC ("Eastern Funding"), and operates 30
full-service banking offices and two lending offices in the greater Boston metropolitan area. As of July 21, 2020, two of Brookline Bank's subsidiaries, BBS Investment Corp. and First Ipswich Securities II Corp were merged with and into
LSC. On February 15, 2020, First Ipswich Bank ("First Ipswich"), formerly a wholly-owned subsidiary of the Company, was merged with and into Brookline Bank.

BankRI, headquartered in Providence, Rhode Island, has four direct subsidiaries, Acorn Insurance Agency, BRI Realty Corp., Macrolease Corporation ("Macrolease"), and BRI Investment Corp. and its wholly-owned subsidiary,

BRI MSC Corp., and operates 20 full-service banking offices in the greater Providence, Rhode Island area.

The Company, through Brookline Bank and BankRI (the "Banks"), offers a wide range of commercial, business and retail banking services, including a full complement of cash management products, on-line banking services,
consumer and residential loans and investment services, designed to meet the financial needs of small- to mid-sized businesses and individuals throughout central New England. Specialty lending activities, including equipment financing,
are focused in the New York and New Jersey metropolitan area, with services offered throughout the United States. As full-service financial institutions, the

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Banks and their subsidiaries focus on the continued addition of well-qualified customers, the deepening of long-term banking relationships through a full complement of products and excellent customer service, and strong risk
management.

The Company's headquarters and executive management are located at 131 Clarendon Street, Boston, Massachusetts 02116, and its telephone number is 617-425-4600.

Overview of Results

The loan and lease portfolio grew $531.7 million, or 7.9%, to $7.3 billion at December 31, 2020 from $6.7 billion at December 31, 2019. The Company's commercial loan portfolios, which are comprised of commercial real estate

loans and commercial loans and leases, continued to exhibit growth. The Company's commercial loan portfolios, which totaled $6.1 billion, or 83.9% of total loans and leases, as of December 31, 2020, increased $590.8 million, or 10.7%,
from $5.5 billion, or 81.7% of total loans and leases, as of December 31, 2019.

Total deposits increased $1.1 billion, or 18.5%, to $6.9 billion at December 31, 2020 from $5.8 billion as of December 31, 2019. Core deposits, which include demand checking, NOW, money market and savings accounts, increased

26.7% to $4.8 billion as of December 31, 2020 from $3.8 billion at December 31, 2019. The Company's core deposits were 69.8% of total deposits at December 31, 2020, an increase from 65.3% at December 31, 2019.

The allowance for loan and lease losses increased $53.3 million, or 87.3%, to $114.4 million as of December 31, 2020 from $61.1 million as of December 31, 2019. The ratio of the allowance for loan and lease losses to total loans

and leases was 1.57% as of December 31, 2020 compared to 0.91% as of December 31, 2019. Nonperforming assets as of December 31, 2020 were $45.0 million, up from $22.1 million at the end of 2019. Nonperforming assets were
0.50% and 0.28% of total assets as of December 31, 2020 and December 31, 2019, respectively. The Company's credit quality compares favorably to its peers, and remains a top priority within the Company.

Net interest income increased $6.9 million, or 2.7%, to $260.2 million in 2020 compared to $253.3 million in 2019. Net interest margin decreased 34 basis points to 3.17% in 2020 from 3.51% in 2019. Net income for 2020
decreased $40.1 million, or 45.7%, to $47.6 million from $87.7 million for 2019. Basic and fully diluted earnings per common share ("EPS") decreased to $0.60 for 2020 from $1.10 for 2019. See Item 7. “Management's Discussion and
Analysis of Financial Condition and Results of Operations.”

Competition

The Company provides banking services in the greater Boston, Massachusetts, and Providence, Rhode Island, metropolitan marketplaces, each of which is dominated by several large national banking institutions. The Company

faces considerable competition from banking and non-banking organizations, including traditional banks, digital banks, financial technology companies and others, in its market area for all aspects of banking and related service activities.
Competitive factors considered for loan generation include product offerings, interest rates, terms offered, services provided and geographic locations. Competitive factors considered in attracting and retaining deposits include product
offerings and rate of return, convenient branch locations and automated teller machines and online access to accounts.

Market Area and Credit Risk Concentration

As of December 31, 2020, the Company, through its Banks, operated 50 full-service banking offices in greater Boston, Massachusetts, and greater Providence, Rhode Island. The Banks' deposits are gathered from the general public,

primarily in the communities in which the banking offices are located. The deposit market in Massachusetts and Rhode Island is highly concentrated in several banks. Based on June 30, 2020 Federal Deposit Insurance Corporation
("FDIC") statistics, the five largest banks in Massachusetts have an aggregate market share of approximately 67%, and the three largest banks in Rhode Island have an aggregate deposit market share of approximately 72%. The Banks'
lending activities are concentrated primarily in the greater Boston, Massachusetts, and Providence, Rhode Island, metropolitan areas, eastern Massachusetts, southern New Hampshire and other Rhode Island areas. In addition, the
Company, through its subsidiaries of Brookline Bank and BankRI, conducts equipment financing activities in the greater New York and New Jersey metropolitan area and elsewhere in the United States.

Commercial real estate loans. Multi-family and commercial real estate mortgage loans typically generate higher yields, but also involve greater credit risk. In addition, many of the Banks' borrowers have more than one multi-family

or commercial real estate loan outstanding. The Banks manage this credit risk by prudent underwriting with conservative debt service coverage and Loan -to-value ratios at origination; lending to seasoned real estate owners/managers;
frequently with personal guarantees of repayment; using reasonable appraisal practices; cross-collateralizing loans to one borrower when deemed prudent; and limiting the amount and types of construction lending. As of December 31,
2020, the largest commercial real estate relationship in the Company’s portfolio was $56.1 million.

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Commercial loans and equipment leasing. Brookline Bank originates commercial loans and leases for working capital and other business-related purposes, and concentrate such lending to companies located primarily in
Massachusetts, and, in the case of Eastern Funding, in New York and New Jersey. BankRI originates commercial loans and lines of credit for various business-related purposes, for businesses located primarily in Rhode Island, and
engages in equipment financing through its wholly-owned subsidiary, Macrolease, in the greater New York and New Jersey metropolitan area and elsewhere in the United States.

Because commercial loans are typically made on the basis of the borrower's ability to repay from the cash flow of the business, the availability of funds for the repayment of commercial and industrial loans may be significantly
dependent on the success of the business itself. Further, the collateral securing the loans may be difficult to value, may fluctuate in value based on the success of the business and may deteriorate over time. For this reason, these loans and
leases involve greater credit risk. Loans and leases originated by Eastern Funding generally earn higher yields because the borrowers are typically small businesses with limited capital such as laundries, dry cleaners, fitness centers,
convenience stores and tow truck operators. The Macrolease equipment financing portfolio is comprised of small- to medium-sized businesses such as fitness centers, restaurants and other commercial equipment. The Banks manage the
credit risk inherent in commercial lending by requiring strong debt service coverage ratios; limiting loan-to-value ratios; securing personal guarantees from borrowers; and limiting industry concentrations, franchisee concentrations and the
duration of loan maturities. As of December 31, 2020, the largest commercial relationship in the Company’s portfolio was $58.4 million.

Consumer loans. Retail customers of Brookline Bank typically live and work in the Boston metropolitan area and eastern Massachusetts, are financially active and value personalized service and easy branch access. Retail customers
of BankRI typically live and work throughout Rhode Island and value easy branch access, personalized service, and knowledge of local communities. The Banks' consumer loan portfolios, which include residential mortgage loans, home
equity loans and lines of credit, and other consumer loans, cater to the borrowing needs of this customer base. Credit risk in these portfolios is managed by limiting loan-to-value ratios at loan origination and by requiring borrowers to
demonstrate strong credit histories. As of December 31, 2020, the largest consumer relationship in the Company’s portfolio was $40.5 million.

Economic Conditions and Governmental Policies

Repayment of multi-family and commercial real estate loans are generally dependent on the properties generating sufficient income to cover operating expenses and debt service. Repayment of commercial loans and equipment

financing loans and leases generally are dependent on the demand for the borrowers' products or services and the ability of borrowers to compete and operate on a profitable basis. Repayment of residential mortgage loans, home equity
loans and indirect automobile loans generally are dependent on the financial well-being of the borrowers and their capacity to service their debt levels. The asset quality of the Company's loan and lease portfolio, therefore, is greatly
affected by the economy. Should there be any setback in the economy or increase in the unemployment rates in the Boston, Massachusetts, or Providence, Rhode Island, metropolitan areas, the resulting negative consequences could affect
occupancy rates in the properties financed by the Company and cause certain individual and business borrowers to be unable to service their debt obligations.

The COVID-19 pandemic has caused, and continues to cause, substantial disruptions to the global economy and to the customers and communities that we serve. In response to the COVID-19 pandemic, legislation has been enacted,

such as the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) to address the economic effects of the COVID-19 pandemic. The CARES Act established the Small Business Administration’s (the “SBA”) Paycheck
Protection Program (the “PPP”). Additionally, on December 27, 2020, the Economic Aid to Hard-Hit Small Businesses, Nonprofits, and Venues Act (the “Economic Aid Act”) was enacted which, among other items provides for an
additional round of PPP loan funding. For further information on government policies enacted to address the COVID-19 pandemic, see Part I. Item 1. “Business - Supervision and Regulation” below.

Personnel and Human Capital Resources

As of December 31, 2020, the Company had 780 full-time employees and 33 part-time employees. The employees are not represented by a collective bargaining unit and the Company considers its relationship with its employees to

be good.

We encourage and support the growth and development of our employees. Continual learning and career development is advanced through ongoing performance and development conversations with employees, internally developed

training programs, customized corporate training engagements and educational reimbursement programs.

The safety, health and wellness of our employees is a top priority. The COVID-19 pandemic presented a unique challenge with regard to maintaining employee safety while continuing successful operations. Through teamwork and
the adaptability of our management and staff, we were able to transition, over a short period of time, 45% of our employees to effectively working from remote locations and ensure a safely-distanced working environment for employees
performing customer facing activities

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at branches and operations centers. All employees are asked not to come to work when they experience signs or symptoms of a possible COVID-19 illness and have been provided additional paid time off to cover compensation during
such absences. On an ongoing basis, we further promote the health and wellness of our employees by strongly encouraging work-life balance, offering flexible work schedules, keeping the employee portion of health care premiums to a
minimum and sponsoring various wellness programs.

We believe our commitment to living out our core values, actively prioritizing concern for our employees’ well-being, supporting our employees’ career goals, offering competitive wages and providing valuable fringe benefits aids

in retention of our top-performing employees.

Access to Information

As a public company, Brookline Bancorp, Inc. is subject to the informational requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and in accordance therewith, files reports, proxy and information

statements and other information with the Securities and Exchange Commission (the “SEC”). The Company makes available on or through its internet website, www.brooklinebancorp.com, without charge, its annual reports on Form 10-
K, proxy, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, as soon as reasonably practicable after such reports are
electronically filed with, or furnished to, the SEC. The Company’s reports filed with, or furnished to, the SEC are also available at the SEC’s website at www.sec.gov. Press releases are also maintained on the Company’s website.
Additional information for Brookline Bank and BankRI can be found at www.brooklinebank.com, and www.bankri.com, respectively. Information on the Company’s and any subsidiary's website is not incorporated by reference into this
document and should not be considered part of this Report.

The Company’s common stock is traded on the Nasdaq Global Select Market

SM

 under the symbol “BRKL”.

Supervision and Regulation

The following discussion addresses elements of the regulatory framework applicable to bank holding companies and their subsidiaries. This regulatory framework is intended primarily for the protection of the safety and soundness

of depository institutions, the federal deposit insurance system, and depositors, rather than for the protection of shareholders of a bank holding company such as the Company.

As a bank holding company, the Company is subject to regulation, supervision and examination by the Board of Governors of the Federal Reserve System ( the "FRB") under the Bank Holding Company Act of 1956, as amended

(the “BHCA”), and by the Massachusetts Commissioner of Banks (the "Commissioner") under Massachusetts General Laws Chapter 167A. The FRB is also the primary federal regulator of the Banks. In addition, Brookline Bank is subject
to regulation, supervision and examination by the Massachusetts Division of Banks ("MDOB"), and BankRI is subject to regulation, supervision and examination by the Banking Division of the Rhode Island Department of Business
Regulation (the “RIBD”).

The following is a summary of certain aspects of various statutes and regulations applicable to the Company and its subsidiaries. This summary is not a comprehensive analysis of all applicable law, and is qualified by reference to

the full text of the statutes and regulations referenced below.

Pandemic Response

Participation in the Paycheck Protection Program

The CARES Act appropriated $349 billion for “paycheck protection loans” through the SBA’s PPP. The amount appropriated for the PPP was subsequently increased to $659 billion (the “Original PPP”). Loans under the PPP that
meet SBA requirements may be forgiven in certain circumstances, and are 100% guaranteed by SBA. The Company funded 2,922 PPP loans totaling $581.7 million as of August 8, 2020 when the Original PPP closed, of which $489.2
million remains outstanding, net of deferred fees and costs at December 31, 2020. All PPP loans have been funded. Additionally, the Economic Aid Act, enacted on December 27, 2020, provides for a second round of PPP loans (the “PPP-
2”). The Banks are participating in the PPP-2 as of January 27, 2021. PPP loans are fully guaranteed by the U.S. government, have an initial term of up to five years and earn interest at a rate of 1%. We currently expect a significant
portion of these loans will ultimately be forgiven by the SBA in accordance with the terms of the program. In conjunction with the PPP, the FRB has created a lending facility for qualified financial institutions. The FRB's Paycheck
Protection Program Liquidity Facility ("PPPLF") extends credit to depository institutions with a term of up to five years at an interest rate of 0.35%. Only loans issued under the PPP can be pledged as collateral to access the facility. The
Company is participating in the PPPLF program.

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Troubled Debt Restructuring Relief

The Coronavirus Aid, Relief and Economic Security ("CARES") Act and regulatory guidance issued by the Federal banking agencies provides that certain short-term loan modifications to borrowers experiencing financial distress as
a result of the economic impacts created by the COVID-19 pandemic are not required to be treated as TDRs under GAAP. As such, the Company suspended TDR accounting for COVID-19 pandemic related loan modifications meeting the
loan modification criteria set forth under the CARES Act or as specified in the regulatory guidance. Further, loans granted payment deferrals related to the COVID-19 pandemic are not required to be reported as past due or placed on non-
accrual status (provided the loans were not past due or on non-accrual status prior to the deferral). As of December 31, 2020, the Company granted 4,989 short-term deferments on loan and lease balances of $1.1 billion. Of these
modifications, 4,691 loans and leases with total balances of $1.0 billion have returned to the payment status and 298 loans and leases with total balances of $90.4 million remain on the deferral status.which represent 1.2% of total loan and
leases balances.

Regulation of the Company

The Company is subject to regulation, supervision and examination by the FRB, which has the authority, among other things, to order bank holding companies to cease and desist from unsafe or unsound banking practices; to assess

civil money penalties; and to order termination of non-banking activities or termination of ownership and control of a non-banking subsidiary by a bank holding company.

Source of Strength

Under the BHCA, as amended by the Dodd-Frank Act, the Company is required to serve as a source of financial strength for the Banks in the event of the financial distress of the Banks. This provision of the Dodd-Frank Act codifies

the longstanding policy of the FRB. This support may be required at times when the bank holding company may not have the resources to provide the additional financial support required by its subsidiary banks. In the event of a bank
holding company’s bankruptcy, any commitment by the bank holding company to a federal bank regulatory agency to maintain the capital of a bank subsidiary will be assumed by the bankruptcy trustee and entitled to priority of payment.

Acquisitions and Activities

The BHCA prohibits a bank holding company, without prior approval of the FRB, from acquiring all or substantially all the assets of a bank, acquiring control of a bank, merging or consolidating with another bank holding company,

or acquiring direct or indirect ownership or control of any voting shares of another bank or bank holding company if, after such acquisition, the acquiring bank holding company would control more than 5% of any class of the voting
shares of such other bank or bank holding company. Further, as a Massachusetts bank holding company, the Company generally must obtain the prior approval of the Massachusetts Board of Bank Incorporation to acquire ownership or
control of more than 5% of any voting stock in any other banking institution, acquire substantially all the assets of a bank, or merge with another bank holding company. However, there is an exemption from this approval requirement in
certain cases in which the banking institution to be acquired, simultaneously with the acquisition, merges with a banking institution subsidiary of the Company in a transaction approved by the Commissioner.

The BHCA also generally prohibits a bank holding company from engaging directly or indirectly in activities other than those of banking, managing or controlling banks or furnishing services to its subsidiary banks. However,
among other permitted activities, a bank holding company may engage in and may own shares of companies engaged in certain activities that the FRB has determined to be so closely related to banking or managing and controlling banks
as to be a proper incident thereto, subject to certain notification requirements.

Limitations on Acquisitions of Company Common Stock

The Change in Bank Control Act prohibits a person or group of persons from acquiring “control” of a bank holding company unless the FRB has been notified and has not objected to the transaction. Under rebuttable presumptions of

control established by the FRB, the acquisition of control of voting securities of a bank holding company constitutes an acquisition of control under the Change in Bank Control Act, requiring prior notice to the FRB, if, immediately after
the transaction, the acquiring person (or persons acting in concert) will own, control, or hold with power to vote 10% or more of any class of voting securities of the bank holding company, and if either (i) the bank holding company has
registered securities under Section 12 of the Securities Exchange Act of 1934, or (ii) no other person will own, control, or hold the power to vote a greater percentage of that class of voting securities immediately after the transaction.

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In addition, the BHCA prohibits any company from acquiring control of a bank or bank holding company without first having obtained the approval of the FRB. Among other circumstances, under the BHCA, a company has control
of a bank or bank holding company if the company owns, controls or holds with power to vote 25% or more of a class of voting securities of the bank or bank holding company; controls in any manner the election of a majority of directors
or trustees of the bank or bank holding company; or the FRB has determined, after notice and opportunity for hearing, that the company has the power to exercise a controlling influence over the management or policies of the bank or bank
holding company. The FRB has established presumptions of control under which the acquisition of control of 5% or more of a class of voting securities of a bank holding company, together with other factors enumerated by the FRB, could
constitute the acquisition of control of a bank holding company for purposes of the BHCA.

Regulation of the Banks

Brookline Bank is subject to regulation, supervision and examination by the MDOB and the FRB. BankRI is subject to regulation, supervision and examination by the RIBD and the FRB. The enforcement powers available to federal
and state banking regulators include, among other things, the ability to issue cease and desist or removal orders to terminate insurance of deposits; to assess civil money penalties; to issue directives to increase capital; to place the bank into
receivership; and to initiate injunctive actions against banking organizations and institution-affiliated parties.

Deposit Insurance

Deposit obligations of the Banks are insured by the FDIC’s Deposit Insurance Fund up to $250,000 per separately insured depositor for deposits held in the same right and capacity.

In 2016, as mandated by the Federal Deposit Insurance Act (the “FDIA”), the FDIC’s Board of Directors approved a final rule to increase the DIF's reserve ratio to the statutorily required minimum ratio of 1.35% of estimated

insured deposits. On September 30, 2018, the DIF reserve ratio reached 1.36%. Small banks, which are generally banks with less than $10 billion in assets, were awarded assessment credits for the portion of their assessments that
contributed to the growth in the reserve ratio from 1.15 percent to 1.35 percent.

Deposit insurance premiums are based on assets. In 2016, the FDIC’s Board of Directors adopted a final rule that changed the manner in which deposit insurance assessment rates are calculated for established small banks, generally

those banks with less than $10 billion of assets that have been insured for at least five years. Under this method, each of seven financial ratios and a weighted average of CAMELS composite ratings are multiplied by a corresponding
pricing multiplier. The sum of these products is added to a uniform amount, with the resulting sum being an institution’s initial base assessment rate (subject to minimum or maximum assessment rates based on a bank’s CAMELS
composite rating). This method takes into account various measures, including an institution’s leverage ratio, brokered deposit ratio, one year asset growth, the ratio of net income before taxes to total assets, and considerations related to
asset quality. For the year ending December 31, 2020, the Banks’ FDIC insurance assessments costs were $4.2 million.

The FDIC has the authority to adjust deposit insurance assessment rates at any time. In addition, under the FDIA, the FDIC may terminate deposit insurance, among other circumstances, upon a finding that the institution has

engaged in unsafe and unsound practices; is in an unsafe or unsound condition to continue operations; or has violated any applicable law, regulation, rule, order or condition imposed by the FDIC.

Until July 31, 2019, Brookline Bank was a member bank of the Depositors Insurance Fund (the “DIF”), a private, industry-sponsored insurance fund that insures all deposits above FDIC limits for Massachusetts-chartered savings

banks. Brookline Bank converted its charter from a Massachusetts-chartered savings bank to a Massachusetts-chartered trust company and ended its membership in the DIF on July 31, 2019. Term deposits in excess of the FDIC insurance
coverage will continue to be insured by the DIF until they reach maturity.

Cross-Guarantee

Similar to the source of strength doctrine discussed above in “Regulation of the Company-Source of Strength,” under the cross-guarantee provisions of the FDIA, the FDIC can hold any FDIC-insured depository institution liable for

any loss suffered or anticipated by the FDIC in connection with (i) the “default” of a commonly controlled FDIC-insured depository institution; or (ii) any assistance provided by the FDIC to a commonly controlled FDIC-insured
depository institution “in danger of default.”

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Acquisitions and Branching

The Banks must seek prior approval from the FRB to acquire another bank or establish a new branch office. Brookline Bank must also seek prior approval from the MDOB to acquire another bank or establish a new branch office
and BankRI must also seek prior approval from the RIBD to acquire another bank or establish a new branch office. Well capitalized and well managed banks may acquire other banks in any state, subject to certain deposit concentration
limits and other conditions, pursuant to the Riegle-Neal Interstate Banking and Branching Efficiency Act of 1994, as amended by the Dodd-Frank Act. In addition, the Dodd-Frank Act authorizes a state-chartered bank to establish new
branches on an interstate basis to the same extent a bank chartered by the host state may establish branches.

Activities and Investments of Insured State-Chartered Banks

The FDIA generally limits the types of equity investments that FDIC-insured state-chartered member banks, such as the Banks, may make and the kinds of activities in which such banks may engage, as a principal, to those that are
permissible for national banks. Further, the Gramm-Leach-Bliley Act of 1999 (the “GLBA”) permits state banks, to the extent permitted under state law, to engage through “financial subsidiaries” in certain activities which are permissible
for subsidiaries of a financial holding company. In order to form a financial subsidiary, a state-chartered bank must be well capitalized, and must comply with certain capital deduction, risk management and affiliate transaction rules,
among other requirements. In addition, the Federal Reserve Act provides that state member banks are subject to the same restrictions with respect to purchasing, selling, underwriting, and holding of investment securities as national banks.

Brokered Deposits

The FDIA and federal regulations generally limit the ability of an insured depository institution to accept, renew or roll over any brokered deposit unless the institution’s capital category is “well capitalized” or, with regulatory

approval, “adequately capitalized.” Depository institutions that have brokered deposits in excess of 10% of total assets will be subject to increased FDIC deposit insurance premium assessments. Additionally, depository institutions
considered “adequately capitalized” that need regulatory approval to accept, renew or roll over any brokered deposits are subject to additional restrictions on the interest rate they may pay on deposits. As of December 31, 2020, neither of
the Banks had brokered deposits in excess of 10% of total assets.

Section 202 of the Economic Growth, Regulatory Relief, and Consumer Protection Act (the "Economic Growth Act"), which was enacted in 2018, amends the FDIA to exempt a capped amount of reciprocal deposits from treatment

as brokered deposits for certain insured depository institutions.

The Community Reinvestment Act

The Community Reinvestment Act (“CRA”) requires the FRB to evaluate each of the Banks with regard to their performance in helping to meet the credit needs of the communities each of the Banks serve, including low and
moderate-income neighborhoods, consistent with safe and sound banking operations, and to take this record into consideration when evaluating certain applications. The FRB’s CRA regulations are generally based upon objective criteria
of the performance of institutions under three key assessment tests: (i) a lending test, to evaluate the institution’s record of making loans in its service areas; (ii) an investment test, to evaluate the institution’s record of investing in
community development projects, affordable housing, and programs benefiting low- or moderate-income individuals and businesses; and (iii) a service test, to evaluate the institution’s delivery of services through its branches, ATMs, and
other offices. Failure of an institution to receive at least a “satisfactory” rating could inhibit the Banks or the Company from undertaking certain activities, including engaging in activities permitted as a financial holding company under
GLBA and acquisitions of other financial institutions. Each Bank has achieved a rating of “satisfactory” on its most recent CRA examination. Both Massachusetts and Rhode Island have adopted specific community reinvestment
requirements which are substantially similar to those of the FRB.

Lending Restrictions

Federal law limits a bank’s authority to extend credit to directors and executive officers of the bank or its affiliates and persons or companies that own, control or have power to vote more than 10% of any class of securities of a bank

or an affiliate of a bank, as well as to entities controlled by such persons. Among other things, extensions of credit to insiders are required to be made on terms that are substantially the same as, and follow credit underwriting procedures
that are not less stringent than, those prevailing for comparable transactions with unaffiliated persons. Also, the terms of such extensions of credit may not involve more than the normal risk of repayment or present other unfavorable
features and may not exceed certain limitations on the amount of credit extended to such persons, individually and in the aggregate, which limits are based, in part, on the amount of the bank’s capital.

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Capital Adequacy and Safety and Soundness

Regulatory Capital Requirements

The FRB has issued risk-based and leverage capital rules applicable to U.S. banking organizations such as the Company and the Banks. These rules are intended to reflect the relationship between the banking organization’s capital

and the degree of risk associated with its operations based on transactions recorded on-balance sheet as well as off-balance sheet items. The FRB may from time to time require that a banking organization maintain capital above the
minimum levels discussed below, due to the banking organization’s financial condition or actual or anticipated growth.

The capital adequacy rules define qualifying capital instruments and specify minimum amounts of capital as a percentage of assets that banking organizations are required to maintain. Common equity Tier 1 capital generally

includes common stock and related surplus, retained earnings and, in certain cases and subject to certain limitations, minority interest in consolidated subsidiaries, less goodwill, other non-qualifying intangible assets and certain other
deductions. Tier 1 capital for banks and bank holding companies generally consists of the sum of common equity Tier 1 elements, non-cumulative perpetual preferred stock, and related surplus in certain cases and subject to limitations,
minority interests in consolidated subsidiaries that do not qualify as common equity Tier 1 capital, less certain deductions. Tier 2 capital generally consists of hybrid capital instruments, perpetual debt and mandatory convertible debt
securities, cumulative perpetual preferred stock, term subordinated debt and intermediate-term preferred stock, and, subject to limitations, allowances for loan losses. The sum of Tier 1 and Tier 2 capital less certain required deductions
represents qualifying total risk-based capital. Prior to the effectiveness of certain provisions of the Dodd-Frank Act, bank holding companies were permitted to include trust preferred securities and cumulative perpetual preferred stock in
Tier 1 capital, subject to limitations. However, the FRB’s capital rule applicable to bank holding companies permanently grandfathers nonqualifying capital instruments, including trust preferred securities, issued before May 19, 2010 by
depository institution holding companies with less than $15 billion in total assets as of December 31, 2009, subject to a limit of 25% of Tier 1 capital. In addition, under rules that became effective January 1, 2015, accumulated other
comprehensive income (positive or negative) must be reflected in Tier 1 capital; however, the Company was permitted to make a one-time, permanent election to continue to exclude accumulated other comprehensive income from capital.
The Company has made this election.

Under the capital rules, risk-based capital ratios are calculated by dividing common equity Tier 1, Tier 1, and total risk capital, respectively, by risk-weighted assets. Assets and off-balance sheet credit equivalents are assigned to one
of several categories of risk-weights, based primarily on relative risk. Under the FRB's rules, the Company and the Banks are each required to maintain a minimum common equity Tier 1 capital ratio requirement of 4.5%, a minimum Tier
1 capital ratio requirement of 6.0%, a minimum total capital requirement of 8.0% and a minimum leverage ratio requirement of 4.0%. Additionally, these rules require an institution to establish a capital conservation buffer of common
equity Tier 1 capital in an amount above the minimum risk-based capital requirements for "adequately capitalized" institutions of more than 2.5% of total risk weighted assets, or face restrictions on the ability to pay dividends, pay
discretionary bonuses, and to engaged in share repurchases.

A bank holding company, such as the Company, is considered "well capitalized" if the bank holding company (i) has a total risk based capital ratio of at least 10.0%, (ii) has a Tier 1 risk-based capital ratio of at least 6.0%, and (iii) is

not subject to any written agreement order, capital directive or prompt corrective action directive to meet and maintain a specific capital level for any capital measure. In addition, under the FRB's prompt corrective action rules, a state
member bank is considered “well capitalized” if it (i) has a total risk-based capital ratio of 10.0% or greater; (ii) a Tier 1 risk-based capital ratio of 8.0% or greater; (iii) a common Tier 1 equity ratio of at least 6.5% or greater, (iv) a
leverage capital ratio of 5.0% or greater; and (v) is not subject to any written agreement, order, capital directive, or prompt corrective action directive to meet and maintain a specific capital level for any capital measure. The FRB also
considers: (i) concentrations of credit risk; (ii) interest rate risk; and (iii) risks from non-traditional activities, as well as an institution’s ability to manage those risks. When determining the adequacy of an institution’s capital, this
evaluation is a part of the institution’s regular safety and soundness examination. Each of the Banks is currently considered well-capitalized under all regulatory definitions.

Generally, a bank, upon receiving notice that it is not adequately capitalized (i.e., that it is “undercapitalized”), becomes subject to the prompt corrective action provisions of Section 38 of FDIA that, for example, (i) restrict payment
of capital distributions and management fees, (ii) require that its federal bank regulator monitor the condition of the institution and its efforts to restore its capital, (iii) require submission of a capital restoration plan, (iv) restrict the growth
of the institution’s assets, and (v) require prior regulatory approval of certain expansion proposals. A bank that is required to submit a capital restoration plan must concurrently submit a performance guarantee by each company that
controls the bank. A bank that is “critically undercapitalized” (i.e., has a ratio of tangible equity to total assets that is equal to or less than 2.0%) will be subject to further restrictions, and generally will be placed in conservatorship or
receivership within 90 days.

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The Banks are considered “well capitalized” under the FRB's prompt corrective action rules and the Company is considered “well capitalized” under the FRB's rules applicable to bank holding companies.

Section 201 of the Economic Growth Act directs the federal bank regulatory agencies to establish a community bank leverage ratio (“CBLR”) of tangible capital to average total consolidated assets of not less than 8.0% or more than

10.0%. Under the final rule issued by federal banking agencies, effective January 1, 2020, depository institutions and depository institution holding companies that have less than $10 billion in total consolidated assets and meet other
qualifying criteria, including a leverage ratio (equal to Tier 1 capital divided by average total consolidated assets) of greater than 9.0%, will be eligible to opt into the community bank leverage ratio framework. A community banking
organization that elects to use the community bank leverage ratio framework and that maintains a leverage ratio of greater than 9.0% will be considered to have satisfied the generally applicable risk-based and leverage capital requirements
in the banking agencies’ generally applicable capital rules and, if applicable, will be considered to have met the well-capitalized ratio requirements for purposes of Section 38 of the Federal Deposit Insurance Act. The final rule includes a
two-quarter grace period during which a qualifying banking organization that temporarily fails to meet any of the qualifying criteria, including the greater than 9.0% leverage ratio requirement, generally would still be deemed well-
capitalized so long as the banking organization maintains a leverage ratio greater than 8.0%. At the end of the grace period, the banking organization must meet all qualifying criteria to remain in the community bank leverage ratio
framework or otherwise must comply with and report under the generally applicable rule. As required by Section 4012 the CARES Act, the federal banking agencies temporarily lowered the community bank leverage ratio, issuing two
interim final rules to set the community bank leverage ratio at 8.0% and then gradually re-establish it at 9.0%. Under the interim final rules, the community bank leverage ratio was set at 8.0% beginning in the second quarter of 2020
through the end of the year. Community banks that have a leverage ratio of 8.0% or greater and meet certain other criteria may elect to use the community bank leverage ratio framework. Beginning in 2021, the community bank leverage
ratio will increase to 8.5% for the calendar year. Community banks will have until January 1, 2022, before the leverage ratio requirement to use the CBLR framework will return to 9.0%. At this time, the Company does not anticipate
opting in to the CBLR.

Safety and Soundness Standards

Guidelines adopted by the federal bank regulatory agencies pursuant to the FDIA establish general standards relating to internal controls and information systems, internal audit systems, loan documentation, credit underwriting,
interest rate exposure, asset growth, asset quality, earnings and compensation, fees and benefits. In general, these guidelines require, among other things, appropriate systems and practices to identify and manage the risk and exposures
specified in the guidelines. The guidelines prohibit excessive compensation as an unsafe and unsound practice and describe compensation as excessive when the amounts paid are unreasonable or disproportionate to the services performed
by an executive officer, employee, director or principal stockholder. In addition, the federal banking agencies adopted regulations that authorize, but do not require, an agency to order an institution that has been given notice by an agency
that it is not satisfying any of such safety and soundness standards to submit a compliance plan. If, after being so notified, an institution fails to submit an acceptable compliance plan or fails in any material respect to implement an
acceptable compliance plan, the agency must issue an order directing action to correct the deficiency and may issue an order restricting asset growth, requiring an institution to increase its ratio of tangible equity to assets or directing other
actions of the types to which an undercapitalized institution is subject under the “prompt corrective action” provisions of FDIA. See “- Regulatory Capital Requirements” above. If an institution fails to comply with such an order, the
agency may seek to enforce such order in judicial proceedings and to impose civil money penalties.

Dividend Restrictions

The Company is a legal entity separate and distinct from the Banks. The revenue of the Company (on a parent company only basis) is derived primarily from dividends paid to it by the Banks. The right of the Company, and
consequently the right of shareholders of the Company, to participate in any distribution of the assets or earnings of the Banks through the payment of such dividends or otherwise is subject to the prior claims of creditors of the Banks
(including depositors), except to the extent that certain claims of the Company in a creditor capacity may be recognized.

Restrictions on Bank Holding Company Dividends

The FRB has authority to prohibit bank holding companies from paying dividends if such payment is deemed to be an unsafe or unsound practice. The FRB has indicated generally that it may be an unsafe or unsound practice for
bank holding companies to pay dividends unless the bank holding company’s net income for the prior year is sufficient to fund the dividends and the expected rate of earnings retention is consistent with the organization’s capital needs,
asset quality and overall financial condition. Further, under the FRBs capital rules, the Company's ability to pay dividends will be restricted if it does not maintain the required capital conservation buffer. See “Capital Adequacy and Safety
and Soundness-Regulatory Capital Requirements” above.

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Restrictions on Bank Dividends

The FRB has the authority to use its enforcement powers to prohibit a bank from paying dividends if, in its opinion, the payment of dividends would constitute an unsafe or unsound practice. Federal law also prohibits the payment of
dividends by a bank that will result in the bank failing to meet its applicable capital requirements on a pro forma basis. In addition, a state member bank may not declare or pay a dividend: (i) if the total of all dividends declared during the
calendar year, including the proposed dividend, exceeds the sum of the bank's net income during the current calendar year and the retained net income of the prior two calendar years; or (ii) that would exceed its undivided profits; in either
case, unless the dividend has been approved by the FRB. Payment of dividends by a bank is also restricted pursuant to various state regulatory limitations.

Certain Transactions by Bank Holding Companies with their Affiliates

There are various statutory restrictions on the extent to which bank holding companies and their non-bank subsidiaries may borrow, obtain credit from or otherwise engage in “covered transactions” with their insured depository

institution subsidiaries. An insured depository institution (and its subsidiaries) may not lend money to, or engage in covered transactions with, its non-depository institution affiliates if the aggregate amount of covered transactions
outstanding involving the bank, plus the proposed transaction, exceeds the following limits: (i) in the case of any one such affiliate, the aggregate amount of covered transactions of the insured depository institution and its subsidiaries
cannot exceed 10% of the capital stock and surplus of the insured depository institution; and (ii) in the case of all affiliates, the aggregate amount of covered transactions of the insured depository institution and its subsidiaries cannot
exceed 20% of the capital stock and surplus of the insured depository institution. For this purpose, “covered transactions” are defined by statute to include a loan or extension of credit to an affiliate, a purchase of or investment in securities
issued by an affiliate, a purchase of assets from an affiliate unless exempted by the FRB, the acceptance of securities issued by an affiliate as collateral for a loan or extension of credit to any person or company, the issuance of a guarantee,
acceptance or letter of credit on behalf of an affiliate, securities borrowing or lending transactions with an affiliate that creates a credit exposure to such affiliate, or a derivatives transaction with an affiliate that creates a credit exposure to
such affiliate. Covered transactions are also subject to certain collateral security requirements. Covered transactions as well as other types of transactions between a bank and a bank holding company must be conducted under terms and
conditions, including credit standards, that are at least as favorable to the bank as prevailing market terms. If a banking organization elects to use the community bank leverage ratio framework described in “Capital Adequacy and Safety
and Soundness - Regulatory Capital Requirements” above, the banking organization would be required to measure the amount of covered transactions as a percentage of Tier 1 capital, subject to certain adjustments. Moreover, Section 106
of the Bank Holding Company Act Amendment of 1970 provides that, to further competition, a bank holding company and its subsidiaries are prohibited from engaging in certain tying arrangements in connection with any extension of
credit, lease or sale of property of any kind, or the furnishing of any service. As of and for the year ending December 31, 2020, there were no such transactions.

Consumer Protection Regulation

The Company and the Banks are subject to a number of federal and state laws designed to protect consumers and prohibit unfair or deceptive business practices. These laws include the Equal Credit Opportunity Act, Fair Housing

Act, Home Ownership Protection Act, Fair Credit Reporting Act, as amended by the Fair and Accurate Credit Transactions Act of 2003 (the “FACT Act”), GLBA, Truth in Lending Act ("TILA"), the CRA, the Home Mortgage Disclosure
Act, Real Estate Settlement Procedures Act, National Flood Insurance Act and various state law counterparts. These laws and regulations mandate certain disclosure requirements and regulate the manner in which financial institutions
must interact with customers when taking deposits, making loans, collecting loans and providing other services. Further, the Consumer Financial Protection Bureau ("CFPB") also has a broad mandate to prohibit unfair, deceptive or
abusive acts and practices and is specifically empowered to require certain disclosures to consumers and draft model disclosure forms. Failure to comply with consumer protection laws and regulations can subject financial institutions to
enforcement actions, fines and other penalties. The FRB examines the Banks for compliance with CFPB rules and enforces CFPB rules with respect to the Banks.

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Mortgage Reform

The Dodd-Frank Act prescribes certain standards that mortgage lenders must consider before making a residential mortgage loan, including verifying a borrower’s ability to repay such mortgage loan, and allows borrowers to assert
violations of certain provisions of the TILA as a defense to foreclosure proceedings. Under the Dodd-Frank Act, prepayment penalties are prohibited for certain mortgage transactions and creditors are prohibited from financing insurance
policies in connection with a residential mortgage loan or home equity line of credit. In addition, the Dodd-Frank Act prohibits mortgage originators from receiving compensation based on the terms of residential mortgage loans and
generally limits the ability of a mortgage originator to be compensated by others if compensation is received from a consumer. The Dodd-Frank Act requires mortgage lenders to make additional disclosures prior to the extension of credit,
and in each billing statement, and for negative amortization loans and hybrid adjustable rate mortgages. Additionally, the CFPB’s qualified mortgage rule requires creditors, such as the Banks, to make a reasonable good faith determination
of a consumer's ability to repay any consumer credit transaction secured by a dwelling prior to making the loan. The Economic Growth Act included provisions that ease certain requirements related to mortgage transactions for certain
institutions with less than $10 billion in total consolidated assets.

Privacy and Customer Information Security

The GLBA requires financial institutions to implement policies and procedures regarding the disclosure of nonpublic personal information about consumers to nonaffiliated third parties. In general, the Banks must provide their

customers with an annual disclosure that explains their policies and procedures regarding the disclosure of such nonpublic personal information and, except as otherwise required or permitted by law, the Banks are prohibited from
disclosing such information except as provided in such policies and procedures. If the financial institution only discloses information under exceptions from the GLBA that do not require an opt out to be provided and if there has been no
change in the financial institutions privacy policies and procedures since its most recent disclosures provide to customers, an annual disclosure is not required to be provided by the financial institution. The GLBA also requires that the
Banks develop, implement and maintain a comprehensive written information security program designed to ensure the security and confidentiality of customer information (as defined under GLBA), to protect against anticipated threats or
hazards to the security or integrity of such information and to protect against unauthorized access to or use of such information that could result in substantial harm or inconvenience to any customer. The Banks are also required to send a
notice to customers whose “sensitive information” has been compromised if unauthorized use of this information is “reasonably possible.” Most of the states, including the states where the Banks operate, have enacted legislation
concerning breaches of data security and the duties of the Banks in response to a data breach. Congress continues to consider federal legislation that would require consumer notice of data security breaches. Pursuant to the FACT Act, the
Banks must also develop and implement a written identity theft prevention program to detect, prevent, and mitigate identity theft in connection with the opening of certain accounts or certain existing accounts. Additionally, the FACT Act
amends the Fair Credit Reporting Act to generally prohibit a person from using information received from an affiliate to make a solicitation for marketing purposes to a consumer, unless the consumer is given notice and a reasonable
opportunity and method to opt out of the making of such solicitations.

Anti-Money Laundering

The Bank Secrecy Act

Under the Bank Secrecy Act (“BSA”), a financial institution is required to have systems in place to detect certain transactions, based on the size and nature of the transaction. Financial institutions are generally required to report to

the United States Treasury any cash transactions involving at least $10,000. In addition, financial institutions are required to file suspicious activity reports for any transaction or series of transactions that involve more than $5,000 and
which the financial institution knows, suspects or has reason to suspect involves illegal funds, is designed to evade the requirements of the BSA or has no lawful purpose. The Uniting and Strengthening America by Providing Appropriate
Tools Required to Intercept and Obstruct Terrorism Act of 2001 (the “USA PATRIOT Act”), which amended the BSA, is designed to deny terrorists and others the ability to obtain anonymous access to the U.S. financial system. The USA
PATRIOT Act has significant implications for financial institutions and businesses of other types involved in the transfer of money. The USA PATRIOT Act, together with the implementing regulations of various federal regulatory
agencies, has caused financial institutions, such as the Banks, to adopt and implement additional policies or amend existing policies and procedures with respect to, among other things, anti-money laundering compliance, suspicious
activity, currency transaction reporting, customer identity verification and customer risk analysis. In evaluating an application to acquire a bank or to merge banks or effect a purchase of assets and assumption of deposits and other
liabilities, the applicable federal banking regulator must consider the anti-money laundering compliance record of both the applicant and the target. In addition, under the USA PATRIOT Act, financial institutions are required to take steps
to monitor their correspondent banking and private banking relationships as well as, if applicable, their relationships with “shell banks.”

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Office of Foreign Assets Control

The U.S. has imposed economic sanctions that affect transactions with designated foreign countries, nationals and others. These sanctions, which are administered by the U.S. Treasury’s Office of Foreign Assets Control (“OFAC”),

take many different forms. Generally, however, they contain one or more of the following elements: (i) restrictions on trade with or investment in a sanctioned country, including prohibitions against direct or indirect imports from and
exports to a sanctioned country and prohibitions on “U.S. persons” engaging in financial or other transactions relating to a sanctioned country or with certain designated persons and entities; (ii) a blocking of assets in which the
government or specially designated nationals of the sanctioned country have an interest, by prohibiting transfers of property subject to U.S. jurisdiction (including property in the possession or control of U.S. persons); and (iii) restrictions
on transactions with or involving certain persons or entities. Blocked assets (for example, property and bank deposits) cannot be paid out, withdrawn, set off or transferred in any manner without a license from OFAC. Failure to comply
with these sanctions could have serious legal and reputational consequences for the Company. As of December 31, 2020, the Company did not have any transactions with sanctioned countries, nationals, and others.

Item 1A.    Risk Factors

Before deciding to invest in us or deciding to maintain or increase your investment, you should carefully consider the risks described below, in addition to the other information contained in this report and in our other filings with the

SEC. The risks and uncertainties described below and in our other filings are not the only ones facing us. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our business. If
any of these known or unknown risks or uncertainties actually occur, our business, financial condition and results of operations could be seriously harmed. In that event, the market price for our common stock could decline and you may
lose your investment.

RISKS RELATED TO THE COVID-19 PANDEMIC

The COVID-19 pandemic, and the measures taken to control its spread, will continue to adversely impact our employees, customers, business operations and financial results, and the ultimate impact will depend on future
developments, which are highly uncertain and cannot be predicted.

The COVID-19 pandemic has, and will likely continue to, severely impact the national economy and the regional and local markets in which we operate, lower equity market valuations, create significant volatility and disruption in
capital and debt markets, and increase unemployment levels. Our business operations may be disrupted if significant portions of our workforce are unable to work effectively, including because of illness, quarantines, government actions,
or other restrictions in connection with the pandemic. We are subject to heightened cybersecurity, information security and operational risks as a result of work-from-home arrangements that we have put in place for our employees.
Actions taken by the FRB to combat the economic contraction caused by the COVID-19 pandemic, including the reduction of the target federal funds rate and quantitative easing programs, could, if prolonged, adversely affect our net
interest income and margins, and our profitability. The continued closures of many businesses and the institution of social distancing, shelter in place and stay home orders in the states and communities we serve, have reduced business
activity and financial transactions. Government policies and directives relating to the pandemic response are subject to change as the effects and spread of the COVID-19 pandemic continue to evolve. It is unclear whether any COVID-19
pandemic-related businesses losses that we or our customers may suffer will be covered by existing insurance policies. Additionally, certain government directives and social distancing protocols may hinder our ability to conduct timely
property appraisals, which could delay or impact the accuracy of the recognition of credit losses in our loan portfolios. Increases in deposit balances due, among other things, to government stimulus and relief programs could adversely
affect our financial performance if we are unable to successfully lend or invest those funds. The measures we have taken to aid our customers, including short-term loan payment deferments, may be insufficient to help our customers who
have been negatively impacted by the economic fallout from the COVID-19 pandemic. Loans that are currently in deferral status may become nonperforming loans. Changes in customer behavior due to worsening business and economic
conditions or legislative or regulatory initiatives may impact the demand for our products and services, which could adversely affect our revenue, increase the recognition of credit losses in our loan portfolios and increases in our allowance
for credit losses. Similarly, because of adverse economic and market conditions affecting issuers, we may be required to recognize further impairments on the securities we hold, goodwill, intangible assets, and deferred tax assets, as well
as reductions in other comprehensive income. The extent to which the COVID-19 pandemic will continue to impact our business, results of operations, and financial condition, as well as our regulatory capital and liquidity ratios, will
depend on future developments, including the scope and duration of the pandemic and actions taken by governmental authorities and other third parties in response to the pandemic, as well as further actions we may take as may be
required by government authorities or that we determine is in the best interests of our employees and customers. There is no certainty that such measures will be sufficient to mitigate the risks posed by the pandemic.

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Our participation in the SBA’s PPP may expose us to reputational harm, increased litigation risk, as well as the risk that the SBA may not fund some or all of the guarantees associated with PPP loans.

The Company funded 2,922 PPP loans totaling $581.7 million as of August 8, 2020 when the Original PPP closed, of which $489.2 million remains outstanding, net of deferred fees and costs at December 31, 2020. As of January 27,
2020, the Company’s banks are participating in the PPP-2. Lenders participating in the PPP have faced increased public scrutiny about their loan application process and procedures, and the nature and type of the borrowers receiving PPP
loans. We depend on our reputation as a trusted and responsible financial services company to compete effectively in the communities that we serve, and any negative public or customer response to, or any litigation or claims that might
arise out of, our participation in the PPP and any other legislative or regulatory initiatives and programs that may be enacted in response to the COVID-19 pandemic, could adversely impact our business. Other larger banks have been
subject to litigation regarding the process and procedures that such banks used in processing applications for the PPP, and we may be subject to the same or similar litigation, in addition to litigation in connection with our processing of
PPP loan forgiveness applications. In addition, if the SBA determines that there is a deficiency in the manner in which a PPP loan was originated, funded, or serviced by us, the SBA may deny its liability under the guaranty, reduce the
amount of the guaranty, or, if it has already paid under the guaranty, seek recovery of any loss related to the deficiency from us.

RISKS RELATED TO OUR BUSINESS AND INDUSTRY

Our business may be adversely affected by changes in economic and market conditions.

A worsening of economic and market conditions, downside shocks, or a return to recessionary economic conditions could adversely affect us and others in the financial services industry. We primarily serve individuals and businesses
located in the greater Boston metropolitan area, eastern Massachusetts, New York, New Jersey, and Rhode Island. Our success is largely dependent on local and regional economic conditions. Recessionary economic conditions, increased
unemployment, inflation, a decline in real estate values or other factors beyond our control may adversely affect the ability of our borrowers to repay their loans, and could result in higher loan and lease losses and lower net income for us.

In addition, deterioration or defaults made by issuers of the underlying collateral of our investment securities may cause additional credit-related other-than-temporary impairment charges to our income statement. Our ability to

borrow from other financial institutions or to access the debt or equity capital markets on favorable terms or at all could be adversely affected by disruptions in the capital markets or other events, including actions by rating agencies and
deteriorating investor expectations.

Changes to interest rates could adversely affect our results of operations and financial condition.

Our consolidated results of operations depend, on a large part, on net interest income, which is the difference between (i) interest income on interest-earning assets, such as loans, leases and securities, and (ii) interest expense on
interest-bearing liabilities, such as deposits and borrowed funds. As a result, our earnings and growth are significantly affected by interest rates, which are subject to the influence of economic conditions generally, both domestic and
foreign, to events in the capital markets and also to the monetary and fiscal policies of the United States and its agencies, particularly the FRB. The nature and timing of any changes in such policies or general economic conditions and their
effect on us cannot be controlled and are extremely difficult to predict. An increase in interest rates could also have a negative impact on our results of operations by reducing the ability of borrowers to repay their current loan obligations,
which could not only result in increased loan defaults, foreclosures and charge-offs, but also necessitate further increases to our allowances for loan losses. A decrease in interest rates may trigger loan prepayments, which may serve to
reduce net interest income if we are unable to lend those funds to other borrowers or invest the funds at the same or higher interest rates.

We face significant and increasing competition in the financial services industry.

We operate in a highly competitive environment that includes financial and non-financial services firms, including traditional banks, online banks, financial technology companies and others. These companies compete on the basis of,
among other factors, size, quality and type of products and services offered, price, technology and reputation. Emerging technologies have the potential to intensify competition and accelerate disruption in the financial services industry. In
recent years, non-financial services firms, such as financial technology companies, have begun to offer services traditionally provided by financial institutions. These firms attempt to use technology and mobile platforms to enhance the
ability of companies and individuals to borrow money, save and invest. Our ability to compete successfully depends on a number of factors, including our ability to develop and execute strategic plans and initiatives; to develop competitive
products and technologies; and to attract, retain and develop a highly skilled employee workforce. If we are not able to compete successfully, we could be placed at a competitive disadvantage, which could result in the loss of customers
and market share, and our business, results of operations and financial condition could suffer.

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Our business may be adversely affected if we fail to adapt our products and services to evolving industry standards and consumer preferences.

The financial services industry is undergoing rapid technological changes with frequent introductions of new technology driven products and services. The widespread adoption of new technologies, including internet services,
cryptocurrencies and payment systems, could require substantial expenditures to modify or adapt our existing products and services as we grow and develop our internet banking and mobile banking channel strategies in addition to remote
connectivity solutions. We might not be successful in developing or introducing new products and services, integrating new products or services into our existing offerings, responding or adapting to changes in consumer behavior,
preferences, spending, investing and/or saving habits, achieving market acceptance of our products and services, reducing costs in response to pressures to deliver products and services at lower prices or sufficiently developing and
maintaining loyal customers.

If our allowance for credit losses is not sufficient to cover actual loan and lease losses, our earnings may decrease.

We periodically make a determination of an allowance for credit losses based on available information, including, but not limited to, the quality of the loan and lease portfolio as indicated by trends in loan risk ratings, payment
performance, economic conditions, the value of the underlying collateral and the level of nonaccruing and criticized loans and leases. Management relies on its loan officers and credit quality reviews, its experience and its evaluation of
economic conditions, among other factors, in determining the amount of provision required for the allowance for credit losses. Provisions to this allowance result in an expense for the period. If, as a result of general economic conditions,
previously incorrect assumptions, or an increase in defaulted loans or leases, we determine that additional increases in the allowance for credit losses are necessary, additional expenses may be incurred.

Determining the allowance for credit losses inherently involves a high degree of subjectivity and requires us to make significant estimates of current credit risks and trends, all of which may undergo material changes. We cannot be

sure that we will be able to identify deteriorating credits before they become nonperforming assets or that we will be able to limit losses on those loans and leases that are identified. We have in the past been, and in the future may be,
required to increase our allowance for credit losses for any of several reasons. State and federal regulators, in reviewing our loan and lease portfolio as part of a regulatory examination, may request that we increase the allowance for credit
losses. Changes in economic conditions or individual business or personal circumstances affecting borrowers, new information regarding existing loans and leases, identification of additional problem loans and leases and other factors,
both within and outside of our control, may require an increase in the allowance for credit losses. Any increases in the allowance for credit losses may result in a decrease in our net income and, possibly, our capital, and could have an
adverse effect on our financial condition and results of operations.

Our loan and lease portfolios include commercial real estate mortgage loans and commercial loans and leases, which are generally riskier than other types of loans.

Our commercial real estate and commercial loan and lease portfolios currently comprise 83.9% of total loans and leases. Commercial loans and leases generally carry larger balances and involve a higher risk of nonpayment or late
payment than residential mortgage loans. Most of the commercial loans and leases are secured by borrower business assets such as accounts receivable, inventory, equipment and other fixed assets. Compared to real estate, these types of
collateral are more difficult to monitor, harder to value, may depreciate more rapidly and may not be as readily saleable if repossessed. Repayment of commercial loans and leases is largely dependent on the business and financial
condition of borrowers. Business cash flows are dependent on the demand for the products and services offered by the borrower's business. Such demand may be reduced when economic conditions are weak or when the products and
services offered are viewed as less valuable than those offered by competitors. Because of the risks associated with commercial loans and leases, we may experience higher rates of default than if the portfolio were more heavily weighted
toward residential mortgage loans. Higher rates of default could have an adverse effect on our financial condition and results of operations.

Environmental liability associated with our lending activities could result in losses.

In the course of business, we may acquire, through foreclosure, properties securing loans originated or purchased that are in default. Particularly in commercial real estate lending, there is a risk that material environmental violations

could be discovered on these properties. In this event, we might be required to remedy these violations at the affected properties at our sole cost and expense. The cost of remedial action could substantially exceed the value of affected
properties. We may not have adequate remedies against the prior owner or other responsible parties and could find it difficult or impossible to sell the affected properties. These events could have an adverse effect on our financial
condition and results of operations.

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Our securities portfolio performance in difficult market conditions could have adverse effects on our results of operations.

Unrealized losses on investment securities result from changes in credit spreads and liquidity issues in the marketplace, along with changes in the credit profile of individual securities issuers. Under GAAP, we are required to review
our investment portfolio periodically for the presence of impairment of our securities, taking into consideration current and future market conditions, the extent and nature of changes in fair value, issuer rating changes and trends, volatility
of earnings, current analysts' evaluations, our ability and intent to hold investments until a recovery of fair value, as well as other factors. Adverse developments with respect to one or more of the foregoing factors may require us to deem
particular securities to be impaired, with the credit-related portion of the reduction in the value recognized as a charge to our earnings through an allowance. Subsequent valuations, in light of factors prevailing at that time, may result in
significant changes in the values of these securities in future periods. Any of these factors could require us to recognize further impairments in the value of our securities portfolio, which may have an adverse effect on our results of
operations in future periods.

Potential downgrades of U.S. government securities by one or more of the credit ratings agencies could have a material adverse effect on our operations, earnings and financial condition.

A possible future downgrade of the sovereign credit ratings of the U.S. government and a decline in the perceived creditworthiness of U.S. government-related obligations could impact our ability to obtain funding that is

collateralized by affected instruments, as well as affect the pricing of that funding when it is available. A downgrade may also adversely affect the market value of such instruments. We cannot predict if, when or how any changes to the
credit ratings or perceived creditworthiness of these organizations will affect economic conditions. Such ratings actions could result in a significant adverse impact on us. Among other things, a downgrade in the U.S. government’s credit
rating could adversely impact the value of our securities portfolio and may trigger requirements that the Company post additional collateral for trades relative to these securities. A downgrade of the sovereign credit ratings of the U.S.
government or the credit ratings of related institutions, agencies or instruments would significantly exacerbate the other risks to which we are subject and any related adverse effects on the business, financial condition and results of
operations.

Uncertainty about the future of LIBOR may adversely affect our business.

LIBOR is used extensively in the United States as a benchmark for various commercial and financial contracts, including funding sources, adjustable rate mortgages, corporate debt, interest rate swaps and other derivatives. LIBOR is

set based on interest rate information reported by certain banks, which will stop reporting such information after 2021. It is uncertain at this time whether LIBOR will change or cease to exist or the extent to which those entering into
financial contracts will transition to any other particular benchmark. Other benchmarks may perform differently than LIBOR or may have other consequences that cannot currently be anticipated. It is also uncertain what will happen with
instruments that rely on LIBOR for future interest rate adjustments and which of those instruments may remain outstanding or be renegotiated if LIBOR ceases to exist. The uncertainty regarding the future of LIBOR as well as the
transition from LIBOR to another benchmark rate or rates could have adverse impacts on our funding costs or net interest margins, as well as any floating-rate obligations, loans, deposits, derivatives, and other financial instruments that
currently use LIBOR as a benchmark rate and, ultimately, adversely affect our financial condition and results of operations.

We are subject to liquidity risk, which could negatively affect our funding levels.

Market conditions or other events could negatively affect our access to or the cost of funding, affecting our ongoing ability to accommodate liability maturities and deposit withdrawals, meet contractual obligations, or fund asset

growth and new business initiatives at a reasonable cost, in a timely manner and without adverse consequences.

Although we maintain a liquid asset portfolio and have implemented strategies to maintain sufficient and diverse sources of funding to accommodate planned, as well as unanticipated, changes in assets, liabilities, and off-balance
sheet commitments under various economic conditions, a substantial, unexpected, or prolonged change in the level or cost of liquidity could have a material adverse effect on us. If the cost effectiveness or the availability of supply in these
credit markets is reduced for a prolonged period of time, our funding needs may require us to access funding and manage liquidity by other means. These alternatives may include generating client deposits, securitizing or selling loans,
extending the maturity of wholesale borrowings, borrowing under certain secured borrowing arrangements, using relationships developed with a variety of fixed income investors, and further managing loan growth and investment
opportunities. These alternative means of funding may result in an increase to the overall cost of funds and may not be available under stressed conditions, which would cause us to liquidate a portion of our liquid asset portfolio to meet
any funding needs.

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Loss of deposits or a change in deposit mix could increase our cost of funding.

Deposits are a low cost and stable source of funding. We compete with banks and other financial institutions for deposits. Funding costs may increase if we lose deposits and are forced to replace them with more expensive sources of

funding, if clients shift their deposits into higher cost products or if we need to raise interest rates to avoid losing deposits. Higher funding costs reduce our net interest margin, net interest income and net income.

Wholesale funding sources may prove insufficient to replace deposits at maturity and support our operations and future growth.

We and our banking subsidiaries must maintain sufficient funds to respond to the needs of depositors and borrowers. To manage liquidity, we draw upon a number of funding sources in addition to core deposit growth and
repayments and maturities of loans and investments. These sources include Federal Home Loan Bank advances, proceeds from the sale of investments and loans, and liquidity resources at the holding company. Our ability to manage
liquidity will be severely constrained if we are unable to maintain access to funding or if adequate financing is not available to accommodate future growth at acceptable costs. In addition, if we are required to rely more heavily on more
expensive funding sources to support future growth, our revenues may not increase proportionately to cover our costs. In this case, operating margins and profitability would be adversely affected. Turbulence in the capital and credit
markets may adversely affect our liquidity and financial condition and the willingness of certain counterparties and customers to do business with us.

Potential deterioration in the performance or financial position of the FHLBB might restrict our funding needs and may adversely impact our financial condition and results of operations.

Significant components of our liquidity needs are met through our access to funding pursuant to our membership in the FHLBB. The FHLBB is a cooperative that provides services to its member banking institutions. The primary
reason for joining the FHLBB is to obtain funding. The purchase of stock in the FHLBB is a requirement for a member to gain access to funding. Any deterioration in the FHLBB’s performance or financial condition may affect our ability
to access funding and/or require the Company to deem the required investment in FHLBB stock to be impaired. If we are not able to access funding through the FHLBB, we may not be able to meet our liquidity needs, which could have an
adverse effect on our results of operations or financial condition. Similarly, if we deem all or part of our investment in FHLBB stock impaired, such action could have an adverse effect on our financial condition or results of operations.

The soundness of other financial institutions could adversely affect us.

Our ability to engage in routine funding transactions could be adversely affected by the actions and commercial soundness of other financial institutions.  Financial services institutions are interrelated as a result of trading, clearing,

counterparty and other relationships.  We have exposure to many different counterparties, and we routinely execute transactions with counterparties in the financial industry, including brokers and dealers, other commercial banks,
investment banks, mutual and hedge funds, and other financial institutions.  As a result, defaults by, or even rumors or questions about, one or more financial services institutions, or the financial services industry generally, could lead to
market-wide liquidity problems and losses or defaults by us or by other institutions and organizations.  Many of these transactions expose us to credit risk in the event of default of our counterparty or client.  In addition, our credit risk may
be exacerbated when the collateral held by us cannot be liquidated or is liquidated at prices not sufficient to recover the full amount of the financial instrument exposure due to us. There is no assurance that any such losses would not
materially and adversely affect our results of operations.

Damage to our reputation could significantly harm our business, including our competitive position and business prospects.

We are dependent on our reputation within our market area, as a trusted and responsible financial company, for all aspects of our relationships with customers, employees, vendors, third-party service providers, and others, with

whom we conduct business or potential future business. Our ability to attract and retain customers and employees could be adversely affected if our reputation is damaged. Our actual or perceived failure to address various issues could
give rise to reputational risk that could cause harm to us and our business prospects. These issues also include, but are not limited to, legal and regulatory requirements; properly maintaining customer and employee personal information;
record keeping; money-laundering; sales and trading practices; ethical issues; appropriately addressing potential conflicts of interest; and the proper identification of the legal, reputational, credit, liquidity and market risks inherent in our
products. Failure to appropriately address any of these issues could also give rise to additional regulatory restrictions and legal risks, which could, among other consequences, increase the size and number of litigation claims and damages
asserted or subject us to enforcement actions, fines and penalties and incur related costs and expenses. In addition, our businesses are dependent on the integrity of our employees. If an employee were to misappropriate any client funds or
client information, our reputation could be negatively affected, which may result in the loss of accounts and have an adverse effect on our results of operations and financial condition.

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We may be unable to attract and retain qualified key employees, which could adversely affect our business prospects, including our competitive position and results of operations.

Our success is dependent upon our ability to attract and retain highly skilled individuals. There is significant competition for those individuals with the experience and skills required to conduct many of our business activities. We
may not be able to hire or retain the key personnel that we depend upon for success. The unexpected loss of services of one or more of these or other key personnel could have a material adverse impact on our business because of their
skills, knowledge of the markets in which we operate, years of industry experience and the difficulty of promptly finding qualified replacement personnel. Frequently, we compete in the market for talent with entities that are not subject to
comprehensive regulation, including with respect to the structure of incentive compensation. Our inability to attract new employees and retain and motivate our existing employees could adversely impact our business.

Our ability to service our debt and pay dividends is dependent on capital distributions from our subsidiary banks, and these distributions are subject to regulatory limits and other restrictions.

We are a legal entity that is separate and distinct from the Banks. Our revenue (on a parent company only basis) is derived primarily from dividends paid to us by the Banks. Our right, and consequently the right of our shareholders,
to participate in any distribution of the assets or earnings of the Banks through the payment of such dividends or otherwise is necessarily subject to the prior claims of creditors of the Banks (including depositors), except to the extent that
certain claims of ours in a creditor capacity may be recognized. It is possible, depending upon the financial condition of our subsidiary banks and other factors, that applicable regulatory authorities could assert that payment of dividends or
other payments is an unsafe or unsound practice. If one or more of our subsidiary banks is unable to pay dividends to us, we may not be able to service our debt or pay dividends on our common stock. Further, as a result of the capital
conservation buffer requirement of the Final Capital Rule, our ability to pay dividends on our common stock or service our debt could be restricted if we do not maintain a capital conservation buffer. A reduction or elimination of
dividends could adversely affect the market price of our common stock and would adversely affect our business, financial condition, results of operations and prospects. See Item 1, “Business-Supervision and Regulation-Dividend
Restrictions” and “Business-Supervision and Regulation-Capital Adequacy and Safety and Soundness-Regulatory Capital Requirements.”

We face continuing and growing security risks to our information base, including the information we maintain relating to our customers.

In the ordinary course of business, we rely on electronic communications and information systems to conduct our business and to store sensitive data, including financial information regarding customers. Our electronic

communications and information systems infrastructure, as well as the systems infrastructures of the vendors we use to meet our data processing and communication needs, could be susceptible to cyber-attacks, such as denial of service
attacks, hacking, terrorist activities or identity theft. Financial services institutions and companies engaged in data processing have reported breaches in the security of their websites or other systems, some of which have involved
sophisticated and targeted attacks intended to obtain unauthorized access to confidential information, destroy data, disable or degrade service or sabotage systems, often through the introduction of computer viruses or malware, cyber-
attacks and other means. Denial of service attacks have been launched against a number of large financial services institutions. Hacking and identity theft risks, in particular, could cause serious reputational harm. Cyber threats are rapidly
evolving and we may not be able to anticipate or prevent all such attacks. Although to date we have not experienced any material losses relating to cyber-attacks or other information security breaches, there can be no assurance that we will
not suffer such losses in the future. No matter how well designed or implemented our controls are, we will not be able to anticipate all security breaches of these types, and we may not be able to implement effective preventive measures
against such security breaches in a timely manner. A failure or circumvention of our security systems could have a material adverse effect on our business operations and financial condition.

We regularly assess and test our security systems and disaster preparedness, including back-up systems, but the risks are substantially escalating. As a result, cyber-security and the continued enhancement of our controls and
processes to protect our systems, data and networks from attacks, unauthorized access or significant damage remain a priority. Accordingly, we may be required to expend additional resources to enhance our protective measures or to
investigate and remediate any information security vulnerabilities or exposures. Any breach of our system security could result in disruption of our operations, unauthorized access to confidential customer information, significant
regulatory costs, litigation exposure and other possible damages, loss or liability. Such costs or losses could exceed the amount of available insurance coverage, if any, and would adversely affect our earnings. Also, any failure to prevent a
security breach or to quickly and effectively deal with such a breach could negatively impact customer confidence, damaging our reputation and undermining our ability to attract and keep customers.

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We may not be able to successfully implement future information technology system enhancements, which could adversely affect our business operations and profitability.

We invest significant resources in information technology system enhancements in order to provide functionality and security at an appropriate level. We may not be able to successfully implement and integrate future system

enhancements, which could adversely impact the ability to provide timely and accurate financial information in compliance with legal and regulatory requirements, which could result in sanctions from regulatory authorities. Such
sanctions could include fines and suspension of trading in our stock, among others. In addition, future system enhancements could have higher than expected costs and/or result in operating inefficiencies, which could increase the costs
associated with the implementation as well as ongoing operations.

Failure to properly utilize system enhancements that are implemented in the future could result in impairment charges that adversely impact our financial condition and results of operations and could result in significant costs to
remediate or replace the defective components. In addition, we may incur significant training, licensing, maintenance, consulting and amortization expenses during and after systems implementations, and any such costs may continue for
an extended period of time.

We rely on other companies to provide key components of our business infrastructure.

Third party vendors provide key components of our business infrastructure such as internet connections, network access and core application processing. While we have selected these third party vendors carefully, we do not control

their actions. Any problems caused by these third parties, including as a result of their not providing us their services for any reason or their performing their services poorly, could adversely affect our ability to deliver products and
services to our customers or otherwise conduct our business efficiently and effectively. Replacing these third party vendors could also entail significant delay and expense.

We may incur significant losses as a result of ineffective risk management processes and strategies.

We seek to monitor and control our risk exposure through a risk and control framework encompassing a variety of separate but complementary financial, credit, operational, compliance, and legal reporting systems; internal controls;

management review processes; and other mechanisms. While we employ a broad and diversified set of risk monitoring and risk mitigation techniques, those techniques and the judgments that accompany their application may not be
effective and may not anticipate every economic and financial outcome in all market environments or the specifics and timing of such outcomes.

Our internal controls, procedures and policies may fail or be circumvented.

Management regularly reviews and updates our internal controls, disclosure controls and procedures, and corporate governance policies and procedures. Any system of controls, however well-designed and operated, is based in part

on certain assumptions and can provide only reasonable, not absolute, assurances that the objectives of the system are met. Any failure or circumvention of the controls and procedures or failure to comply with regulations related to
controls and procedures could have a material adverse effect on our business, results of operations and financial condition.

Natural disasters, acts of terrorism, pandemics and other external events could harm our business.

Natural disasters can disrupt our operations, result in damage to our properties, reduce or destroy the value of the collateral for our loans and negatively affect the economies in which we operate, which could have a material adverse

effect on our results of operations and financial condition. A significant natural disaster, such as a tornado, hurricane, earthquake, fire or flood, could have a material adverse impact on our ability to conduct business, and our insurance
coverage may be insufficient to compensate for losses that may occur. Acts of terrorism, war, civil unrest or pandemics could cause disruptions to our business or the economy as a whole. While we have established and regularly test
disaster recovery procedures, the occurrence of any such event could have a material adverse effect on our business, operations and financial condition.

Our financial statements are based in part on assumptions and estimates, which, if wrong, could cause unexpected losses in the future.

Pursuant to U.S. GAAP, we are required to use certain assumptions and estimates in preparing our financial statements, including in determining loan loss and litigation reserves, goodwill impairment and the fair value of certain
assets and liabilities, among other items. If assumptions or estimates underlying our financial statements are incorrect, we may experience material losses. See the "Critical Accounting Policies" section in Item 7, "Management's Discussion
and Analysis of Financial Condition and Results of Operations."

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Changes in accounting standards can be difficult to predict and can materially impact how we record and report our financial condition and results of operations.

Our accounting policies and methods are fundamental to how we record and report our financial condition and results of operations. From time to time, the Financial Accounting Standards Board, or "FASB", changes the financial

accounting and reporting principles that govern the preparation of our financial statements. These changes can be hard to anticipate and implement, and can materially impact how we record and report our financial condition and results of
operations. In some cases, we could be required to apply a new or revised standard retroactively, resulting in our restating prior period financial statements. Additionally, significant changes to accounting standards may require costly
technology changes, additional training and personnel, and other expense that will negatively impact our results of operations.

As a result of the adoption of ASU 2016-13 effective January 1, 2020, the Company updated its critical accounting policy to the allowance for credit losses. The updates in this standard replace the incurred loss impairment

methodology GAAP with the CECL methodology. The CECL methodology incorporates current condition, and "reasonable and supportable" forecasts, as well as prepayments, to estimate loan losses over the life of the loan. See Note 7,
"Allowance for Credit Losses" for further discussion on the new policy and processes.

Changes in tax laws and regulations and differences in interpretation of tax laws and regulations may adversely impact our financial statements.

From time to time, local, state or federal tax authorities change tax laws and regulations, which may result in a decrease or increase to our net deferred tax assets. Local, state or federal tax authorities may interpret tax laws and
regulations differently than we do and challenge tax positions that we have taken on tax returns. This may result in differences in the treatment of revenues, deductions, credits and/or differences in the timing of these items. The differences
in treatment may result in payment of additional taxes, interest or penalties that could have a material adverse effect on our results.

Future capital offerings may adversely affect the market price of our common stock.

In the future, we may attempt to increase our capital resources or, if our banking subsidiaries' capital ratios fall below required minimums, we could be forced to raise additional capital by making additional offerings of debt,

common or preferred stock, trust preferred securities, and senior or subordinated notes. Upon liquidation, holders of our debt securities and shares of preferred stock and lenders with respect to other borrowings will receive distributions of
our available assets prior to the holders of our common stock. Additional equity offerings may dilute the holdings of our existing stockholders or reduce the market price of our common stock, or both. Because our decision to issue
securities in any future offering will depend on market conditions and other factors beyond our control, we cannot predict or estimate the amount, timing or nature of our future offerings. Moreover, we cannot assure you that such capital
will be available to us on acceptable terms or at all. Our inability to raise sufficient additional capital on acceptable terms when needed could adversely affect our businesses, financial condition and results of operations.

The market price and trading volume of our common stock may be volatile.

The market price of our common stock may be volatile. In addition, the trading volume in our common stock may fluctuate and cause significant price variations to occur. We cannot assure you that the market price of our common

stock will not fluctuate or decline significantly in the future. Some of the factors that could negatively affect our share price or result in fluctuations in the price or trading volume of our common stock include:

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quarterly variations in our operating results or the quality of our assets;

operating results that vary from the expectations of management, securities analysts and investors;

changes in expectations as to our future financial performance;

announcements of innovations, new products, strategic developments, significant contracts, acquisitions and other material events by us or our competitors;

the operating and securities price performance of other companies that investors believe are comparable to us;

our past and future dividend practices;

future sales of our equity or equity-related securities; and

changes in global financial markets and global economies and general market conditions, such as interest rates, stock, commodity or real estate valuations or volatility.

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Anti-takeover provisions could negatively impact our stockholders.

Provisions of Delaware law and provisions of our certificate of incorporation and by-laws could make it more difficult for a third party to acquire control of us or have the effect of discouraging a third party from attempting to
acquire control of us, even if a merge might be in the best interest of our stockholders. Our articles of organization authorize our Board of Directors to issue preferred stock without stockholder approval and such preferred stock could be
issued as a defensive measure in response to a takeover proposal. These and other provisions could make it more difficult for a third party to acquire us.

If we acquire or seek to acquire other companies, our business may be negatively impacted by certain risks inherent with such acquisitions.

We have acquired and will continue to consider the acquisition of other financial services companies. To the extent that we acquire other companies in the future, our business may be negatively impacted by certain risks inherent

with such acquisitions. Some of these risks include the following:

• We may incur substantial expenses in pursuing potential acquisitions;

• Management may divert its attention from other aspects of our business;

• We may assume potential and unknown liabilities of the acquired company as a result of an acquisition;

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The acquired business will not perform in accordance with management's expectations, including because we may lose key clients or employees of the acquired business as a result of the change in ownership;

Difficulties may arise in connection with the integration of the operations of the acquired business with the operations of our businesses; and

• We may lose key employees of the combined business.

We may be required to write down goodwill and other acquisition-related identifiable intangible assets.

When we acquire a business, a portion of the purchase price of the acquisition may be allocated to goodwill and other identifiable intangible assets. The excess of the purchase price over the fair value of the net identifiable tangible
and intangible assets acquired determines the amount of the purchase price that is allocated to goodwill acquired. As of December 31, 2020, goodwill and other identifiable intangible assets were $163.6 million. Under current accounting
guidance, if we determine that goodwill or intangible assets are impaired, we would be required to write down the value of these assets. We conduct an annual review to determine whether goodwill and other identifiable intangible assets
are impaired. We conduct a quarterly review for indicators of impairment of goodwill and other identifiable intangible assets. Our management recently completed these reviews and concluded that no impairment charge was necessary for
the year ended December 31, 2020. We cannot provide assurance whether we will be required to take an impairment charge in the future. Any impairment charge would have a negative effect on stockholders' equity and financial results
and may cause a decline in our stock price.

RISKS RELATED TO OUR REGULATORY ENVIRONMENT

We operate in a highly regulated industry, and laws and regulations, or changes in them, could limit or restrict our activities and could have a material adverse effect on our operations.

We and our banking subsidiaries are subject to extensive state and federal regulation and supervision. Federal and state laws and regulations govern numerous matters affecting us, including changes in the ownership or control of
banks and bank holding companies, maintenance of adequate capital and the financial condition of a financial institution, permissible types, amounts and terms of extensions of credit and investments, permissible non-banking activities,
the level of reserves against deposits and restrictions on dividend payments. The FRB and the state banking regulators have the power to issue cease and desist orders to prevent or remedy unsafe or unsound practices or violations of law
by banks subject to their regulation, and the FRB possesses similar powers with respect to bank holding companies. These and other restrictions limit the manner in which we and our banking subsidiaries may conduct business and obtain
financing.

The laws, rules, regulations, and supervisory guidance and policies applicable to us are subject to regular modification and change. Such changes could, among other things, subject us to additional costs, including costs of
compliance; limit the types of financial services and products we may offer; and/or increase the ability of non-banks to offer competing financial services and products. Failure to comply with laws, regulations, policies, or supervisory
guidance could result in enforcement and other legal actions by federal or state authorities, including criminal and civil penalties, the loss of FDIC insurance, revocation of a banking charter, other sanctions by regulatory agencies, civil
money penalties, and/or reputational damage, which could have a material adverse effect on our business, financial condition, and results of operations. See the "Supervision and Regulation" section of Item 1, "Business."

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We are subject to numerous laws designed to protect consumers, including the Community Reinvestment Act and fair lending laws, and failure to comply with these laws could lead to a wide variety of sanctions.

The Community Reinvestment Act, the Equal Credit Opportunity Act, the Fair Housing Act, and other fair lending laws and regulations impose community investment and nondiscriminatory lending requirements on financial
institutions. The Consumer Financial Protection Bureau, the Department of Justice and other federal agencies are responsible for enforcing these laws and regulations. A successful regulatory challenge to an institution’s performance under
the Community Reinvestment Act, the Equal Credit Opportunity Act, the Fair Housing Act or other fair lending laws and regulations could result in a wide variety of sanctions, including damages and civil money penalties, injunctive
relief, restrictions on mergers and acquisitions, restrictions on expansion and restrictions on entering new business lines. Private parties may also have the ability to challenge an institution’s performance under fair lending laws in private
class action litigation. Such actions could have a material adverse effect on our business, financial condition and results of operations.

We may become subject to enforcements actions even though noncompliance was inadvertent or unintentional.

The financial services industry is subject to intense scrutiny from bank supervisors in the examination process and aggressive enforcement of federal and state regulations, particularly with respect to mortgage-related practices and
other consumer compliance matters, and compliance with anti-money laundering, Bank Secrecy Act and Office of Foreign Assets Control regulations, and economic sanctions against certain foreign countries and nationals. Enforcement
actions may be initiated for violations of laws and regulations and unsafe or unsound practices. We maintain systems and procedures designed to ensure that we comply with applicable laws and regulations; however, some legal/regulatory
frameworks provide for the imposition of fines or penalties for noncompliance even though the noncompliance was inadvertent or unintentional and even though there was in place at the time systems and procedures designed to ensure
compliance. Failure to comply with these and other regulations, and supervisory expectations related thereto, may result in fines, penalties, lawsuits, regulatory sanctions, reputation damage, or restrictions on our business.

We face significant legal risks, both from regulatory investigations and proceedings and from private actions brought against us.

From time to time we are named as a defendant or are otherwise involved in various legal proceedings, including class actions and other litigation or disputes with third parties. There is no assurance that litigation with private parties

will not increase in the future. Actions against us may result in judgments, settlements, fines, penalties or other results adverse to us, which could materially adversely affect our business, financial condition or results of operations, or
cause serious reputational harm to us. As a participant in the financial services industry, it is likely that we could continue to experience a high level of litigation related to our businesses and operations.

Item 1B.    Unresolved Staff Comments

None.

Item 2.    Properties

The Company’s executive administration offices are located at 131 Clarendon Street, Boston, Massachusetts, which is owned by Brookline Bank, as well as its corporate operations center in Lincoln, Rhode Island, which is owned by

BankRI, with other administrative and operations functions performed at several different locations. 

Brookline Bank conducts its business from 30 banking offices, 6 of which are owned, 23 of which are leased, and 1 of which is subleased. Brookline Bank's main banking office is leased and located in Brookline, Massachusetts.

Brookline Bank also has 2 additional lending offices and 2 remote ATM locations, all of which are leased. Eastern Funding conducts its business from leased premises in New York City, New York and in Melville, New York.

BankRI conducts its business from 20 banking offices, 6 of which are owned and 14 of which are leased. BankRI's main banking office is leased and located in Providence, Rhode Island. BankRI also has 2 remote ATM locations, all

of which are leased. Macrolease conducts its business from leased premises in Plainview, New York.

Refer to Note 13, "Commitments and Contingencies," to the consolidated financial statements for information regarding the Company's lease commitments as of December 31, 2020.

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Table of Contents

Item 3.    Legal Proceedings

During the fiscal year ended December 31, 2020, the Company was not involved in any legal proceedings other than routine legal proceedings occurring in the ordinary course of business. Management believes that those routine

legal proceedings involve, in the aggregate, amounts that are immaterial to the Company's financial condition and results of operations.

Item 4.    Mine Safety Disclosures

Not applicable.

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Table of Contents

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

PART II

(a)

The common stock of the Company is traded on NASDAQ under the symbol BRKL. The approximate number of registered holders of common stock as of February 26, 2021 was 1,682. The Company currently pays quarterly
cash dividends in the amount of $0.115 per share. The Company expects comparable cash dividends will be paid in the future. 

Equity Compensation Plan Information

Refer to Note 20, "Employee Benefit Plans" for a discussion of the Company's equity compensation plans.

Five-Year Performance Comparison

The following graph compares total shareholder return on the Company's common stock over the last five years with the S&P 500 Index, the Russell 2000 Index and the SNL Index of Banks with assets between $5 billion and

$10 billion. Index values are as of December 31 of each of the indicated years.

Index
Brookline Bancorp, Inc.
Russell 2000 Index
SNL Bank $5B-$10B Index
S&P 500 Index

2015

2016

2017

2018

2019

2020

100.00 
100.00 
100.00 
100.00 

147.24 
121.31 
143.27 
111.96 

144.42 
139.08 
142.73 
136.40 

130.17 
123.76 
129.17 
130.42 

159.57 
155.35 
160.06 
171.49 

121.83 
186.31 
122.43 
203.02 

At December 31,

23

Table of Contents

The graph assumes $100 invested on December 31, 2015 in each of the Company's common stock, the S&P 500 Index, the Russell 2000 Index and the SNL Index of Banks with assets between $5 billion and $10 billion. The graph

also assumes reinvestment of all dividends.

(b)

Not applicable.

(c)    The following table presents a summary of the Company's share repurchases during the quarter ended December 31, 2020.

Period

Total Number of Shares Purchased

October 28 through December 31, 2020

867,411  $

Average Price Paid Per Share
11.06 

______________________________________________________________________________________________________

Total Number of Shares Purchased as Part of
Publicly Announced Programs 

(1)

Maximum Number of Shares that May Yet be
Purchased Under the Programs 

(1)

867,411 

— 

(1)

 On December 4, 2019, the Company's Board of Directors approved a stock repurchase program (the "2020 Stock Repurchase Plan") authorizing management to repurchase up to $10.0 million of the Company’s common stock over
a period of twelve months commencing on January 1, 2020. On March 9, 2020, the Board of Directors approved an increase in the repurchase amount of $10.0 million bringing the total authorized amount to $20.0 million. Effective March
24, 2020, the Company suspended the 2020 Stock Repurchase Plan. On October 28, 2020, the Board of Directors authorized the resumption of the 2020 Stock Repurchase Plan. As of December 31, 2020, the Company had completed the
program.

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Table of Contents

Item 6.    Selected Financial Data

The selected financial and other data of the Company set forth below are derived in part from, and should be read in conjunction with, the Consolidated Financial Statements of the Company and Notes thereto presented elsewhere

herein.

2020

2019

At or for the year ended December 31,
2018
(Dollars in Thousands, Except Per Share Data)

2017

2016

(1)

(3)

(2)

(6)

FINANCIAL CONDITION DATA
Total assets
Total loans and leases
Allowance for loan and lease losses 
Investment securities available-for-sale
Investment securities held-to-maturity
Equity securities held-for-trading
Goodwill and identified intangible assets
Total deposits
Core deposits 
Certificates of deposit
Brokered deposits
Total borrowed funds
Stockholders' equity
Tangible stockholders' equity (*)
Nonperforming loans and leases 
Nonperforming assets 
EARNINGS DATA
Interest and dividend income
Interest expense
Net interest income
Provision for credit losses
Non-interest income
Non-interest expense
Provision for income taxes
Net income
Operating earnings (*)
PER COMMON SHARE DATA
Earnings per share - Basic
Earnings per share - Diluted
Operating earnings per share (*)
Dividends paid per common share
Book value per share (end of period)
Tangible book value per share (*)
Stock price (end of period)
PERFORMANCE RATIOS
Net interest margin
Return on average assets
Operating return on average assets (*)
Return on average tangible assets (*)

$

$

$

$

$

$

8,942,424 
7,269,553 
114,379 
745,822 
— 
526 
163,579 
6,910,696 
4,826,789 
1,389,998 
693,909 
820,247 
941,778 
778,199 
38,448 
44,963 

326,817 
66,654 
260,163 
61,886 
24,644 
160,844 
14,442 
47,635 
46,124 

0.60 
0.60 
0.58 
0.460 
12.05 
9.96 
12.04 

3.17 %
0.55 %
0.53 %
0.56 %

25

$

$

$

7,856,853 
6,737,816 
61,082 
498,995 
86,780 
3,581 
164,850 
5,830,072 
3,808,430 
1,671,738 
349,904 
902,749 
945,606 
780,756 
19,461 
22,092 

347,626 
94,326 
253,300 
9,583 
29,793 
157,481 
28,269 
87,717 
88,184 

1.10 
1.10 
1.10 
0.440 
11.87 
9.80 
16.46 

$

$

$

7,392,805 
6,303,516 
58,692 
502,793 
114,776 
4,207 
166,513 
5,454,044 
3,664,879 
1,438,478 
350,687 
920,542 
900,140 
733,627 
24,097 
28,116 

313,893 
66,194 
247,699 
4,951 
25,224 
155,232 
26,189 
83,062 
85,796 

1.04 
1.04 
1.07 
0.395 
11.30 
9.21 
13.82 

$

$

$

6,780,249 
5,730,679 
58,592 
540,124 
109,730 
— 
143,934 
4,871,343 
3,663,873 
932,725 
274,745 
1,020,819 
803,830 
659,896 
27,272 
31,691 

263,050 
39,869 
223,181 
18,988 
32,173 
139,111 
43,636 
50,518 
52,444 

0.68 
0.68 
0.70 
0.360 
10.49 
8.61 
15.70 

6,438,129 
5,398,864 
53,666 
523,634 
87,120 
— 
146,023 
4,611,076 
3,570,054 
837,630 
203,392 
1,044,086 
695,544 
549,521 
40,077 
41,476 

239,648 
35,984 
203,664 
10,353 
22,667 
130,362 
30,392 
52,362 
52,362 

0.74 
0.74 
0.74 
0.360 
9.88 
7.81 
16.40 

3.51 %
1.15 %
1.15 %
1.17 %

3.61 %
1.15 %
1.19 %
1.18 %

3.57 %
0.76 %
0.79 %
0.78 %

3.44 %
0.83 %
0.83 %
0.85 %

Table of Contents

(4)

(5)

(5)

Operating return on average tangible assets (*)
Return on average stockholders' equity
Operating return on average stockholders' equity (*)
Return on average tangible stockholders' equity (*)
Operating return on average tangible stockholders' equity (*)
Dividend payout ratio (*)
Efficiency ratio 
GROWTH RATIOS
Total loan and lease growth 
Total deposit growth 
ASSET QUALITY RATIOS
Net loan and lease charge-offs as a percentage of average loans and leases
Nonperforming loans and lease losses as a percentage of total loans and leases
Nonperforming assets as a percentage of total assets
Total allowance for loan and leases losses as a percentage of total loans and leases
CAPITAL RATIOS
Stockholders' equity to total assets
Tangible equity ratio (*)
Tier 1 leverage capital ratio
Common equity Tier 1 capital ratio (**)
Tier 1 risk-based capital ratio
Total risk-based capital ratio

2020

2019

At or for the year ended December 31,
2018
(Dollars in Thousands, Except Per Share Data)

2017

2016

0.54 %
5.09 %
4.93 %
6.17 %
5.97 %
76.41 %
56.47 %

7.89 %
18.54 %

0.18 %
0.53 %
0.50 %
1.57 %

10.53 %
8.86 %
8.92 %
11.04 %
11.18 %
13.51 %

1.17 %
9.56 %
9.61 %
11.67 %
11.73 %
40.03 %
55.63 %

6.89 %
6.89 %

0.11 %
0.29 %
0.28 %
0.91 %

12.04 %
10.15 %
10.28 %
11.44 %
11.58 %
13.59 %

1.22 %
9.51 %
9.82 %
11.70 %
12.09 %
37.85 %
56.88 %

10.00 %
11.96 %

0.08 %
0.38 %
0.38 %
0.93 %

12.18 %
10.15 %
10.58 %
11.94 %
12.26 %
14.42 %

0.81 %
6.53 %
6.78 %
8.04 %
8.35 %
53.52 %
54.48 %

6.15 %
5.64 %

0.25 %
0.48 %
0.47 %
1.02 %

11.86 %
9.94 %
10.43 %
12.02 %
12.34 %
14.75 %

0.85 %
7.59 %
7.59 %
9.66 %
9.66 %
48.44 %
57.60 %

8.07 %
7.08 %

0.25 %
0.74 %
0.64 %
0.99 %

10.80 %
8.73 %
9.16 %
10.48 %
10.79 %
13.20 %

_______________________________________________________________________________
(1) Core deposits consist of demand checking, NOW, money market and savings accounts.
(2) Nonperforming loans and leases consist of nonaccrual loans and leases.
(3) Nonperforming assets consist of nonperforming loans and leases, other real estate owned and other repossessed assets.
(4) The efficiency ratio is calculated by dividing non-interest expense by the sum of net interest income and non-interest income for the period.
(5) Total growth is calculated by dividing the change in the balance during the period by the balance at the beginning of the period.
(6) The allowance for loan and lease losses at December 31, 2020 reflects the adoption of CECL.
(*) Refer to Non-GAAP Financial Measures and Reconciliation to GAAP.
(**) Common equity tier 1 capital ratio is calculated by dividing common equity Tier 1 capital by risk-weighted assets. The ratio was established as part of the implementation of Basel III, effective January 1, 2015.

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Table of Contents

Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

Introduction

The Company, a Delaware corporation, operates as a multi-bank holding company for Brookline Bank and its subsidiaries; BankRI and its subsidiaries; and Brookline Securities Corp.

As a commercially-focused financial institution with 50 full-service banking offices throughout greater Boston, the north shore of Massachusetts and Rhode Island, the Company, through the Banks, offers a wide range of
commercial, business and retail banking services, including a full complement of cash management products, foreign exchange services, on-line and mobile banking services, consumer and residential loans and investment advisory
services, designed to meet the financial needs of small- to mid-sized businesses and individuals throughout central New England. Specialty lending activities including equipment financing, comprise 27.8% in the New York and New
Jersey metropolitan area.

The Company focuses its business efforts on profitably growing its commercial lending businesses, both organically and through acquisitions. The Company’s customer focus, multi-bank structure, and risk management are integral

to its organic growth strategy and serve to differentiate the Company from its competitors. As full-service financial institutions, the Banks and their subsidiaries focus their efforts on developing and deepening long-term banking
relationships with qualified customers through a full complement of products and excellent customer service, and strong risk management.

The Company manages the Banks under uniform strategic objectives, with one set of uniform policies consistently applied by one executive management team. Within this environment, the Company believes that the ability to make
customer decisions locally enhances management's motivation, service levels and, as a consequence, the Company's financial results. As such, while most back-office functions are consolidated at the holding company level, branding and
decision-making, including credit decisions and pricing, remain largely local in order to better meet the needs of bank customers and further motivate the Banks’ commercial, business and retail bankers. These credit decisions, at the local
level, are executed through corporate policies overseen by the Company's credit department.

The competition for loans and leases and deposits remains intense. The Company expects the operating environment to remain challenging. The volume of loan and lease originations and loan and lease losses will depend, to a large

extent, on how the economy performs. Loan and lease growth and deposit growth are also greatly influenced by the rate-setting actions of the FRB. A sustained, low interest rate environment with a flat interest rate curve may negatively
impact the Company's yields and net interest margin. While the Company is slightly asset sensitive and should benefit from rising rates, changes in interest rates could also precipitate a change in the mix and volume of the Company's
deposits and loans. The future operating results of the Company will depend on its ability to maintain or increase the current net interest margin, while minimizing exposure to credit risk, along with increasing sources of non-interest
income, while controlling the growth of non-interest expenses.

The Company and the Banks are supervised, examined and regulated by the FRB. As a Massachusetts-chartered trust company, Brookline Bank is also subject to regulation under the laws of the Commonwealth of Massachusetts and

the jurisdiction of the Massachusetts Division of Banks. As a Rhode Island-chartered financial institution, BankRI is also subject to regulation under the laws of the State of Rhode Island and the jurisdiction of the Banking Division of the
Rhode Island Department of Business Regulation. The FDIC continues to insure each of the Banks’ deposits up to $250,000 per depositor. Until July 31, 2019, Brookline Bank was a member bank of the Depositors Insurance Fund (the
“DIF”), a private, industry-sponsored insurance fund that insures all deposits above FDIC limits for Massachusetts-chartered savings banks. Brookline Bank converted its charter from a Massachusetts-chartered savings bank to a
Massachusetts-chartered trust company and ended its membership in the DIF on July 31, 2019. Term deposits in excess of the FDIC insurance coverage will continue to be insured by the DIF until they reach maturity.

The Company’s common stock is traded on the Nasdaq Global Select Market

SM

 under the symbol “BRKL.”

Executive Overview

Growth

Total assets of $8.9 billion as of December 31, 2020 increased $1.1 billion, or 13.8%, from December 31, 2019. The increase was primarily driven by increases in loans and leases, cash and cash equivalents and investment securities.

Total loans and leases of $7.3 billion as of December 31, 2020 increased $531.7 million, or 7.9%, from December 31, 2019. The Company's commercial loan portfolios, which are comprised of commercial real estate loans and

commercial loans and leases, totaled $6.1 billion, or 83.9% of total loans and leases as of December 31, 2020, an increase of $590.8 million, or 10.7%, from $5.5 billion, or 81.7% of total loans and leases, as of December 31, 2019.

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Table of Contents

Total deposits of $6.9 billion as of December 31, 2020 increased $1.1 billion, or 18.5%, from $5.8 billion as of December 31, 2019. Core deposits, which include demand checking, NOW, money market and savings accounts, totaled

$4.8 billion, or 69.8% of total deposits as of December 31, 2020, an increase of $1.0 billion, from $3.8 billion, or 65.3% of total deposits as of December 31, 2019. Certificate of deposit balances totaled $1.4 billion, or 20.1% of total
deposits as of December 31, 2020, a decrease of $281.7 million, or 16.9% on an annualized basis from $1.7 billion, or 28.7% of total deposits, as of December 31, 2019. Brokered deposit balances totaled $693.9 million, or 10.0% of total
deposits as of December 31, 2020, an increase of $344.0 million, or 98.3% on an annualized basis from $349.9 million, or 6.0% of total deposits, as of December 31, 2019.

Asset Quality

Nonperforming assets as of December 31, 2020 totaled $45.0 million, or 0.50% of total assets, compared to $22.1 million, or 0.28% of total assets, as of December 31, 2019. Net charge-offs for the year ended December 31, 2020

were $13.0 million, or 0.18% of average loans and leases, compared to $7.2 million, or 0.11% of average loans and leases, for the year ended December 31, 2019. The increase in nonperforming assets was primarily driven by the inclusion
of one commercial relationship of $4.3 million, one construction relationship of $3.9 million, and one commercial relationship classified as OREO loan of $5.4 million during the year ending December 31, 2020.

The ratio of the allowance for loan and lease losses to total loans and leases was 1.57% as of December 31, 2020, compared to 0.91% as of December 31, 2019. On January 1, 2020, the Company implemented the CECL

methodology to calculate the allowance for credit losses. Refer also to Note 7, "Allowance for Credit Losses."

Capital Strength

The Company is a "well-capitalized" bank holding company as defined in the FRB's Regulation Y. The Company's common equity Tier 1 Capital Ratio was 11.04% as of December 31, 2020, compared to 11.44% as of December 31,
2019. The Company's Tier 1 Leverage Ratio was 8.92% as of December 31, 2020, compared to 10.28% as of December 31, 2019. As of December 31, 2020, the Company's Tier 1 Risk-Based Ratio was 11.18%, compared to 11.58% as of
December 31, 2019. The Company's Total Risk-Based Ratio was 13.51% as of December 31, 2020, compared to 13.59% as of December 31, 2019.

The Company's ratio of stockholders' equity to total assets was 10.53% and 12.04% as of December 31, 2020 and December 31, 2019, respectively. The Company's tangible equity ratio was 8.86% and 10.15% as of December 31,

2020 and December 31, 2019, respectively.

Net Income

For the year ended December 31, 2020, the Company reported net income of $47.6 million, or $0.60 per basic and diluted share, a decrease of $40.1 million, or 45.7%, from $87.7 million, or $1.10 per basic and diluted share for the

year ended December 31, 2019. The decrease in net income is primarily the result of an increase in the provision for credit losses of $52.3 million, an increase in non-interest expense of $3.4 million and a decrease in non-interest income of
$5.1 million, partially offset by an increase in net interest income of $6.9 million and a decrease in the provision for income taxes of $13.8 million.

The return on average assets was 0.55% for the year ended December 31, 2020, compared to 1.15% for the year ended December 31, 2019. The return on average stockholders' equity was 5.09% for the year ended December 31,

2020, compared to 9.56% for the year ended December 31, 2019.

The net interest margin was 3.17% for the year ended December 31, 2020 down from 3.51% for the year ended December 31, 2019. The decrease in the net interest margin is a result of a decrease in the yield on interest-earning

assets of 82 basis points to 3.99% in 2020 from 4.81% in 2019, partially offset by a decrease of 54 basis points in the Company's overall cost of funds to 0.89% in 2020 from 1.43% in 2019.

Results for 2020 included a $61.9 million provision for credit losses, as discussed in the "Allowance for Credit Losses—Allowance for Loan and Lease Losses" section below.

Non-interest income decreased $5.1 million to $24.6 million for the year ended December 31, 2020 from $29.8 million for the year ended December 31, 2019. Several factors contributed to the year over year decrease, including
decreases of $4.0 million in loan level derivative income, net, $1.6 million in deposit fees, $0.6 million in gain on sales of loans and leases and $0.4 million in other non-interest income, partially offset by an increase of $1.5 million in gain
on sales of investment securities, net.

Non-interest expense increased $3.4 million to $160.8 million for the year ended December 31, 2020 from $157.5 million for the year ended December 31, 2019. The increase was largely attributable to increases of $4.4 million in

compensation and employee benefits expense and $2.8 million in FDIC insurance expense, partially offset by decreases of $1.6 million in other

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Table of Contents

non-interest expense, $1.3 million in equipment and data processing expense, and $1.1 million in merger and acquisition expense.

Critical Accounting Policies

The accounting policies described below are considered critical to understanding the Company's financial condition and operating results. Such accounting policies are considered to be especially important because they involve a
higher degree of complexity and require management to make difficult and subjective judgments which often require assumptions or estimates about matters that are inherently uncertain. The use of different judgments, assumptions and
estimates could result in material differences in the Company's operating results or financial condition.

Allowance for Credit Losses

The allowance for credit losses represents management's estimate of expected losses over the life of the loan and lease portfolio. The allowance for credit losses consists of the allowance for loan and lease losses and reserve for
unfunded commitments, which are classified as a contra-asset and liability within other liabilities, respectively, on the Consolidated Balance Sheets. Additions to the allowance for credit losses are made by charges to the provision for
credit losses. Losses on loans and leases are deducted from the allowance when all or a portion of a loan or lease is considered uncollectible. The determination of the loans on which full collectability is not reasonably assured, the
estimates of the fair value of the underlying collateral, and the assessment of economic and other conditions are subject to assumptions and judgments by management. Valuation allowances could differ materially as a result of changes in,
or different interpretations of, these assumptions and judgments.

Management evaluates the adequacy of the allowance on a quarterly basis and reviews its conclusion as to the amount to be established with the Audit Committee and the Board of Directors.

As a result of the adoption of ASU 2016-13 effective January 1, 2020, the Company updated its critical accounting policy for the allowance for credit losses. The updates in this standard replace the incurred loss impairment GAAP

methodology with the CECL methodology. The CECL methodology incorporates current condition, and "reasonable and supportable" forecasts, as well as prepayments, to estimate credit losses over the life of the loan.

See Note 7, "Allowance for Credit Losses," to the consolidated financial statements for further discussion on the new policy and processes.

Impairment of Goodwill

Goodwill is presumed to have an indefinite useful life and is tested at least annually for impairment. Impairment exists when the carrying amount of goodwill exceeds its implied fair value. If fair value exceeds the carrying amount at

the time of testing, goodwill is not considered impaired. Quoted market prices in active markets are the best evidence of fair value and are considered to be used as the basis for measurement, when available. Other acceptable valuation
methods include present-value measurements based on multiples of earnings or revenues, or similar performance measures. Differences in valuation techniques could result in materially different evaluations of impairment. In September
2011, the FASB issued Accounting Standards Update ("ASU") 2011-08 which provides guidance for companies when testing goodwill for impairment. The objective of the ASU is to simplify how entities test goodwill for impairment.
Pursuant to the ASU, entities may now assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to
perform the one-step goodwill impairment test. The more likely than not threshold is defined as having a likelihood of more than 50%.

To determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount, an entity should consider the extent to which each of the adverse events or circumstances identified could affect

the comparison of a reporting unit's fair value with its carrying amount.

Pursuant to the ASU, an entity should place more weight on the events and circumstances that have the greatest impact on a reporting unit's fair value or the carrying amount of its net assets; and may affect its determination of

whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount.

In accordance with ASC 350-20-35-3B, an entity can bypass the qualitative assessment and perform the quantitative impairment test. Given the current economic environment, a quantitative analysis was performed where
management selected a sample of comparable acquisitions and calculated the control premium associated with each sale. The Company’s market capitalization times the sampled control premium allowed management to compare the
calculated market capitalization to the Company’s current book value to determine if an adjustment to goodwill is warranted. The Company did not have any impairment of Goodwill and other identified intangible assets as of December
31, 2020. Further analysis of the Company’s

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goodwill can be found in Note 9 “Goodwill and Other Intangible Assets” within the notes to the consolidated financial statements.

Recent Accounting Developments

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848)-Facilitation of the Effects of Reference Rate Reform on Financial Reporting" to provide optional expedients and exceptions for applying GAAP to
certain contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update apply only to contracts, hedging relationships, and other transactions that reference
LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships existing as
of December 31, 2022, for which an entity has elected certain optional expedients provided that those elections are retained through the end of the hedging relationship. The amendments in this update are effective for all entities as of
March 12, 2020 through December 31, 2022 and do not apply to contract modifications made after December 31, 2022. The Company has not yet adopted the amendments in this update and is currently in the process of reviewing its
contracts and existing processes in order to assess the risks and potential impact to the Company.

See Note 1, “Basis of Presentation” in the notes to the consolidated financial statements for additional information regarding recent accounting developments.

Non-GAAP Financial Measures and Reconciliation to GAAP

In addition to evaluating the Company’s results of operations in accordance with GAAP, management periodically supplements this evaluation with an analysis of certain non-GAAP financial measures, such as operating earnings

metrics, the return on average tangible assets, return on average tangible equity, the tangible equity ratio, tangible book value per share and dividend payout ratio. Management believes that these non-GAAP financial measures provide
information useful to investors in understanding the Company’s underlying operating performance and trends, and facilitates comparisons with the performance assessment of financial performance, including non-interest expense control,
while the tangible equity ratio and tangible book value per share are used to analyze the relative strength of the Company’s capital position.

In light of diversity in presentation among financial institutions, the methodologies used by the Company for determining the non-GAAP financial measures discussed above may differ from those used by other financial institutions.

Operating Earnings

Operating earnings exclude the after-tax impact of securities gains and merger and acquisition expense as well as the impact of the Tax Cuts and Jobs Act (the "Tax Act"). By excluding such items, the Company's results can be

measured and assessed on a more consistent basis from period to period. Items excluded from operating earnings are also excluded when calculating the operating return and operating efficiency ratios.

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The following table summarizes the Company's operating earnings and operating earnings per share ("EPS") for the periods indicated:

Net income, as reported

Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax) 
Impact of Tax Act

(1)

Operating earnings

Earnings per share, as reported

Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax) 
Impact of Tax Act

(1)

Operating earnings per share

2020

2019

Year Ended December 31,
2018
(Dollars in Thousands, Except Per Share Data)

2017

2016

47,635  $

87,717  $

83,062  $

50,518 

$

52,362 

1,511 

— 
— 
46,124  $

0.60  $

0.02 

— 
— 
0.58  $

384 

174 

851 
— 
88,184  $

2,908 
— 
85,796  $

1.10  $

1.04 

$

— 

— 
— 
1.10  $

— 

0.03 
— 
1.07 

$

7,303 

264 
8,965 
52,444 

0.68 

0.10 

— 
0.12 
0.70 

$

$

$

— 

— 
— 
52,362 

0.74 

— 

— 
— 
0.74 

$

$

$

$

_________________________________________________________________________
(1) Merger and acquisition expense related to the acquisition of First Commons Bank in the first quarter of 2018 and the purchase of the remaining minority interest of Eastern Funding in the first quarter of 2019.

The following table summarizes the Company's operating return on average assets, operating return on average tangible assets, operating return on average stockholders' equity and operating return on average tangible stockholders'

equity for the periods indicated:

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Table of Contents

Operating earnings

Average total assets

Less: Average goodwill and average identified intangible assets, net

Average tangible assets

Return on average assets
Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax)
Impact of Tax Act

Operating return on average assets

Return on average tangible assets
Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax)
Impact of Tax Act

Operating return on average tangible assets

Average total stockholders' equity

Less: Average goodwill and average identified intangible assets, net

Average tangible stockholders' equity

Return on average stockholders' equity
Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax)
Impact of Tax Act

Operating return on average stockholders' equity

Return on average tangible stockholders' equity
Less:
Security gains (after-tax)
Add:
Merger and acquisition expense (after-tax)
Impact of Tax Act

Operating return on average tangible stockholders' equity

2020

2019

46,124 

8,683,569 
164,227 
8,519,342 

$

$

$

88,184 

7,654,634 
165,697 
7,488,937 

$

$

$

Year Ended December 31,
2018
(Dollars in Thousands)
85,796 

7,223,081 
163,712 
7,059,369 

2017

2016

$

$

$

52,444 

6,607,234 
145,000 
6,462,234 

$

$

$

52,362 

6,279,722 
147,308 
6,132,414 

0.55 %

0.02 %

— %
— %
0.53 %

0.56 %

0.02 %

— %
— %
0.54 %

1.15 %

0.01 %

0.01 %
— %
1.15 %

1.17 %

0.01 %

0.01 %
— %
1.17 %

1.15 %

— %

0.04 %
— %
1.19 %

1.18 %

— %

0.04 %
— %
1.22 %

0.76 %

0.11 %

— %
0.14 %
0.79 %

0.78 %

0.11 %

— %
0.14 %
0.81 %

0.83 %

— %

— %
— %
0.83 %

0.85 %

— %

— %
— %
0.85 %

936,075 
164,227 
771,848 

$

$

917,286 
165,697 
751,589 

$

$

873,388 
163,712 
709,676 

$

$

773,244 
145,000 
628,244 

$

$

689,556 
147,308 
542,248 

$

$

$

$

$

9.56 %

0.04 %

0.09 %
— %
9.61 %

11.67 %

0.05 %

0.11 %
— %
11.73 %

9.51 %

0.02 %

0.33 %
— %
9.82 %

11.70 %

0.02 %

0.41 %
— %
12.09 %

6.53 %

0.94 %

0.03 %
1.17 %
6.79 %

8.04 %

1.16 %

0.04 %
1.43 %
8.35 %

7.59 %

— %

— %
— %
7.59 %

9.66 %

— %

— %
— %
9.66 %

5.09 %

0.16 %

— %
— %
4.93 %

6.17 %

0.20 %

— %
— %
5.97 %

32

Table of Contents

The following table summarizes the Company’s return on average tangible assets and return on average tangible stockholders’ equity for the periods indicated:

Net income, as reported

Average total assets
Less: Average goodwill and average identified

intangible assets, net

Average tangible assets

Return on average tangible assets

Average total stockholders' equity
Less: Average goodwill and average identified

intangible assets, net

Average tangible stockholders' equity

$

$

$

$

$

2020

47,635 

8,683,569 

164,227 
8,519,342 

0.56 

%

936,075 

164,227 
771,848 

$

$

$

$

$

2019

87,717 

7,654,634 

165,697 
7,488,937 

1.17 

%

917,286 

165,697 
751,589 

$

$

$

$

$

Year Ended December 31,
2018
(Dollars in Thousands)

83,062 

7,223,081 

163,712 
7,059,369 

1.18 

%

873,388 

163,712 
709,676 

$

$

$

$

$

2017

50,518 

6,607,234 

145,000 
6,462,234 

0.78 

%

773,244 

145,000 
628,244 

$

$

$

$

$

2016

52,362 

6,279,722 

147,308 
6,132,414 

0.85 

%

689,556 

147,308 
542,248 

Return on average tangible stockholders' equity

6.17 

%

11.67 

%

11.70 

%

8.04 

%

9.66 

%

The following table summarizes the Company's tangible equity ratio for the periods indicated:

Total stockholders' equity

Less: Goodwill and identified intangible

assets, net

Tangible stockholders' equity

Total assets

Less: Goodwill and identified intangible

assets, net

Tangible assets

Tangible equity ratio

$

$

$

$

2020

941,778 

163,579 
778,199 

8,942,424 

163,579 
8,778,845 

2019

945,606 

164,850 
780,756 

7,856,853 

164,850 
7,692,003 

$

$

$

$

At December 31,
2018
(Dollars in Thousands)

$

$

$

$

900,140 

166,513 
733,627 

7,392,805 

166,513 
7,226,292 

2017

803,830 

143,934 
659,896 

6,780,249 

143,934 
6,636,315 

$

$

$

$

2016

695,544 

146,023 
549,521 

6,438,129 

146,023 
6,292,106 

$

$

$

$

8.86 

%

10.15 

%

10.15 

%

9.94 

%

8.73 

%

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Table of Contents

The following table summarizes the Company's tangible book value per share for the periods indicated:

Tangible stockholders' equity

Common shares issued

Less:

Treasury shares
Unallocated ESOP
Unvested restricted stock

Common shares outstanding

Tangible book value per share

2020

2019

$

778,199 

$

780,756 

Year Ended December 31,
2018
(Dollars in Thousands)
733,627 
$

2017

2016

$

659,896 

$

549,521 

85,177,172 

6,525,783 
51,114 
458,800 
78,141,475 

85,177,172 

5,003,127 
79,548 
406,450 
79,688,047 

85,177,172 

5,020,025 
109,950 
390,636 
79,656,561 

81,695,695 

4,440,665 
142,332 
455,283 
76,657,415 

75,744,445 

4,707,096 
176,688 
476,854 
70,383,807 

$

9.96 

$

9.80 

$

9.21 

$

8.61 

$

7.81 

The following table summarizes the Company's dividend payout ratio for the periods indicated:

Dividends paid

Net income, as reported

Dividend payout ratio

2020

36,396 

47,635 

$

$

2019

35,110 

87,717 

$

$

Year Ended December 31,
2018
(Dollars in Thousands)

$

$

31,441 

83,062 

2017

27,035 

50,518 

$

$

2016

25,366 

52,362 

$

$

76.41 

%

40.03 

%

37.85 

%

53.52 

%

48.44 

%

The following table summarizes the Company’s allowance for loan and lease losses as a percentage of total loans and leases, excluding PPP loans, for the periods indicated:

Allowance for loan and lease losses

Total loans and leases
Less: Total PPP loans

Total loans and leases, excluding PPP loans

Allowance for loan and lease losses as a
percentage of total loans and leases, less PPP loans

2020

114,379 

7,269,553 
489,216 
6,780,337 

$

$

$

2019

61,082 

6,737,816 
— 
6,737,816 

$

$

$

Year Ended December 31,
2018

$

$

$

58,692 

6,303,516 
— 
6,303,516 

2017

58,592 

5,730,679 
— 
5,730,679 

$

$

$

2016

53,666 

5,398,864 
— 
5,398,864 

$

$

$

1.69 

%

0.91 

%

0.93 

%

1.02 

%

0.99 

%

34

Table of Contents

Financial Condition

Loans and Leases

The following table summarizes the Company's portfolio of loans and leases receivables as of the dates indicated:

$

Commercial real estate loans:

Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans
Commercial loans and leases:

Commercial
Equipment financing
Condominium association
Total commercial loans and leases
Consumer loans:

Residential mortgage
Home equity
Other consumer
Total consumer loans

Total loans and leases
Allowance for loan and lease losses

Net loans and leases

$

2020

2019

Balance

Percent 
of Total

Balance

Percent 
of Total

At December 31,
2018

Balance

Percent 
of Total

(Dollars in Thousands)

2017

2016

Balance

Percent 
of Total

Balance

Percent 
of Total

2,578,773 
1,013,432 
231,621 
3,823,826 

1,131,668 
1,092,461 
50,770 
2,274,899 

791,317 
346,652 
32,859 
1,170,828 

7,269,553 
(114,379)
7,155,174 

35.4 % $
13.9 %
3.2 %
52.5 %

15.6 %
15.0 %
0.7 %
31.3 %

10.9 %
4.8 %
0.5 %
16.2 %
100.0 %

$

2,491,011 
932,163 
246,048 
3,669,222 

729,502 
1,052,408 
56,838 
1,838,748 

814,245 
376,819 
38,782 
1,229,846 

6,737,816 
(61,082)
6,676,734 

37.0 % $
13.8 %
3.7 %
54.5 %

10.8 %
15.6 %
0.8 %
27.2 %

12.1 %
5.6 %
0.6 %
18.3 %
100.0 %

$

2,330,725 
847,711 
173,300 
3,351,736 

736,418 
982,089 
50,451 
1,768,958 

782,968 
376,484 
23,370 
1,182,822 

6,303,516 
(58,692)
6,244,824 

37.0 % $
13.4 %
2.7 %
53.1 %

11.7 %
15.6 %
0.8 %
28.1 %

12.4 %
6.0 %
0.4 %
18.8 %
100.0 %

$

2,174,969 
760,670 
140,138 
3,075,777 

705,004 
866,488 
52,619 
1,624,111 

660,065 
355,954 
14,772 
1,030,791 

5,730,679 
(58,592)
5,672,087 

38.0 % $
13.3 %
2.4 %
53.7 %

12.3 %
15.1 %
0.9 %
28.3 %

11.5 %
6.2 %
0.3 %
18.0 %
100.0 %

$

2,050,382 
731,186 
136,999 
2,918,567 

635,426 
799,860 
60,122 
1,495,408 

624,349 
342,241 
18,299 
984,889 

5,398,864 
(53,666)
5,345,198 

38.1 %
13.5 %
2.5 %
54.1 %

11.8 %
14.8 %
1.1 %
27.7 %

11.6 %
6.3 %
0.3 %
18.2 %
100.0 %

The following table sets forth the growth in the Company’s loan and lease portfolios during the year ending December 31, 2020

At December 31, 
2020

At December 31, 
2019

Dollar Change

Percent Change 
(Annualized)

Commercial real estate
Commercial
Consumer

Total loans and leases

$
$
$
$

3,823,826 
2,274,899 
1,170,828 
7,269,553 

$
$
$
$

$

(Dollars in Thousands)
3,669,222 
1,838,748 
1,229,846 
6,737,816 

$

154,604 
436,151 
(59,018)
531,737 

4.2  %
23.7  %
-4.8  %
7.9  %

The Company's loan portfolio consists primarily of first mortgage loans secured by commercial, multi-family and residential real estate properties located in the Company's primary lending area, loans to business entities, including
commercial lines of credit, loans to condominium associations and loans and leases used to finance equipment used by small businesses. The Company also provides financing for construction and development projects, home equity and
other consumer loans.

35

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

The Company employs seasoned commercial lenders and retail bankers who rely on community and business contacts as well as referrals from customers, attorneys and other professionals to generate loans and deposits. Existing

borrowers are also an important source of business since many of them have more than one loan outstanding with the Company. The Company's ability to originate loans depends on the strength of the economy, trends in interest rates, and
levels of customer demand and market competition.

The Company's current policy is that the total credit exposure to one obligor relationship may not exceed $50.0 million unless approved by the Board Credit Committee, a committee of the Company's Board of Directors. As of
December 31, 2020, there were two borrowers with commitments over $50.0 million. The total of those commitments was $114.4 million or 1.3% of total loans and commitments as of December 31, 2020. As of December 31, 2019, there
were three borrowers with loans and commitments over $50.0 million. The total of those loans and commitments was $194.3 million, or 2.4% of total loans and commitments, as of December 31, 2019.

The Company has written underwriting policies to control the inherent risks in loan origination. The policies address approval limits, loan-to-value ratios, appraisal requirements, debt service coverage ratios, loan concentration limits

and other matters relevant to loan underwriting.

Commercial Real Estate Loans

The commercial real estate portfolio is comprised of commercial real estate loans, multi-family mortgage loans, and construction loans and is the largest component of the Company's overall loan portfolio, representing 52.5% of

total loans and leases outstanding as of December 31, 2020.

Typically, commercial real estate loans are larger in size and involve a greater degree of risk than owner-occupied residential mortgage loans. Loan repayment is usually dependent on the successful operation and management of the

properties and the value of the properties securing the loans. Economic conditions can greatly affect cash flows and property values.

A number of factors are considered in originating commercial real estate and multi-family mortgage loans. The qualifications and financial condition of the borrower (including credit history), as well as the potential income
generation and the value and condition of the underlying property, are evaluated. When evaluating the qualifications of the borrower, the Company considers the financial resources of the borrower, the borrower's experience in owning or
managing similar property and the borrower's payment history with the Company and other financial institutions. Factors considered in evaluating the underlying property include the net operating income of the mortgaged premises before
debt service and depreciation, the debt service coverage ratio (the ratio of cash flow before debt service to debt service), the use of conservative capitalization rates, and the ratio of the loan amount to the appraised value. Generally,
personal guarantees are obtained from commercial real estate loan borrowers.

Commercial real estate and multi-family mortgage loans are typically originated for terms of five to fifteen years with amortization periods of 20 to 30 years. Many of the loans are priced at inception on a fixed-rate basis generally

for periods ranging from two to five years with repricing periods for longer-term loans. When possible, prepayment penalties are included in loan covenants on these loans. For commercial customers who are interested in loans with terms
longer than five years, the Company offers loan level derivatives to accommodate customer need.

The Company's urban and suburban market area is characterized by a large number of apartment buildings, condominiums and office buildings. As a result, commercial real estate and multi-family mortgage lending has been a
significant part of the Company's activities for many years. These types of loans typically generate higher yields, but also involve greater credit risk. Many of the Company's borrowers have more than one multi-family or commercial real
estate loan outstanding with the Company.

The commercial real estate portfolio was composed primarily of loans secured by apartment buildings ($927.0 million), office buildings ($668.4 million), retail stores ($606.3 million), industrial properties ($443.2 million), mixed-

use properties ($329.1 million), lodging services ($149.2 million) and food services ($55.9 million) as of December 31, 2020. As of that date, approximately 96.6% of the commercial real estate loans outstanding were secured by
properties located in New England.

Construction and development financing is generally considered to involve a higher degree of risk than long-term financing on improved, occupied real estate and thus has lower concentration limits than do other commercial credit
classes. Risk of loss on a construction loan is largely dependent upon the accuracy of the initial estimate of construction costs, the estimated time to sell or rent the completed property at an adequate price or rate of occupancy, and market
conditions. If the estimates and projections prove to be inaccurate, the Company may be confronted with a project which, upon completion, has a value that is insufficient to assure full loan repayment.

36

Table of Contents

Criteria applied in underwriting construction loans for which the primary source of repayment is the sale of the property is different from the criteria applied in underwriting construction loans for which the primary source of
repayment is the stabilized cash flow from the completed project. For those loans where the primary source of repayment is from resale of the property, in addition to the normal credit analysis performed for other loans, the Company also
analyzes project costs, the attractiveness of the property in relation to the market in which it is located and demand within the market area. For those construction loans where the source of repayment is the stabilized cash flow from the
completed project, the Company analyzes not only project costs but also how long it might take to achieve satisfactory occupancy and the reasonableness of projected rental rates in relation to market rental rates.

Commercial Loans

The commercial loan and lease portfolio is comprised of commercial loans, equipment financing loans and leases and condominium association loans representing 31.3% of total loans outstanding as of December 31, 2020.

The commercial loan and lease portfolio is composed primarily of loans to small businesses ($680.2 million), transportation services ($386.8 million), food services ($214.4 million), recreation services ($160.0 million), rental and

leasing services ($114.8 million), manufacturing ($141.2 million), and retail ($98.0 million) as of December 31, 2020.

The Company provides commercial banking services to companies in its market area. Approximately 54.0% of the commercial loans outstanding as of December 31, 2020 were made to borrowers located in New England. The
remaining 46.0% of the commercial loans outstanding were made to borrowers in other areas in the United States of America, primarily by the Company's equipment financing divisions. Product offerings include lines of credit, term
loans, letters of credit, deposit services and cash management. These types of credit facilities have as their primary source of repayment cash flows from the operations of a business. Interest rates offered are available on a floating basis
tied to the prime rate or a similar index or on a fixed-rate basis referenced on the Federal Home Loan Bank of Boston ("FHLBB") index.

Credit extensions are made to established businesses on the basis of loan purpose and assessment of capacity to repay as determined by an analysis of their financial statements, the nature of collateral to secure the credit extension

and, in most instances, the personal guarantee of the owner of the business as well as industry and general economic conditions. The Company also participates in U.S. Government programs such as the SBA in both the 7A program and as
an SBA preferred lender. Included in the commercial loans balances are the PPP loans totaling $463.5 million as of December 31, 2020.

The Company’s equipment financing divisions focus on market niches in which its lenders have deep experience and industry contacts, and on making loans to customers with business experience. An important part of the

Company’s equipment financing loan origination volume comes from equipment manufacturers and existing customers as they expand their operations. The equipment financing portfolio is composed primarily of loans to finance laundry,
tow trucks, fitness, dry cleaning and convenience store equipment. Approximately 13.4% of the commercial loans outstanding were in the equipment financing divisions made to borrowers located primarily in the greater New York and
New Jersey metropolitan area. Typically, the loans are priced at a fixed rate of interest and require monthly payments over their three- to seven-year life. The yields earned on equipment financing loans are higher than those earned on the
commercial loans made by the Banks because they involve a higher degree of credit risk. Equipment financing customers are typically small-business owners who operate with limited financial resources and who face greater risks when
the economy weakens or unforeseen adverse events arise. Because of these characteristics, personal guarantees of borrowers are usually obtained along with liens on available assets. The size of loan is determined by an analysis of cash
flow and other characteristics pertaining to the business and the equipment to be financed, based on detailed revenue and profitability data of similar operations.

Loans to condominium associations are for the purpose of funding capital improvements, are made for five- to ten-year terms and are secured by a general assignment of condominium association revenues. Among the factors

considered in the underwriting of such loans are the level of owner occupancy, the financial condition and history of the condominium association, the attractiveness of the property in relation to the market in which it is located and the
reasonableness of estimates of the cost of capital improvements to be made. Depending on loan size, funds are advanced as capital improvements are made and, in more complex situations, after completion of engineering inspections.

Consumer Loans

The consumer loan portfolio is comprised of residential mortgage loans, home equity loans and lines of credit, and other consumer loans representing, 16.2% of total loans outstanding as of December 31, 2020. The Company

focuses its mortgage and home equity lending on existing and new customers within its branch networks in its urban and suburban marketplaces in the greater Boston and Providence metropolitan areas.

The Company originates adjustable and fixed rate residential mortgage loans secured by one-to-four-family residences. Each residential mortgage loan granted is subject to a satisfactorily completed application, employment

verification, credit

37

Table of Contents

history and a demonstrated ability to repay the debt. Generally, loans are not made when the loan-to-value ratio exceeds 80% unless private mortgage insurance is obtained and/or there is a financially strong guarantor. Appraisals are
performed by outside independent fee appraisers.

Underwriting guidelines for home equity loans and lines of credit are similar to those for residential mortgage loans. Home equity loans and lines of credit are limited to no more than 80% of the appraised value of the property

securing the loan including the amount of any existing first mortgage liens.

Other consumer loans have historically been a modest part of the Company's loan originations. As of December 31, 2020, other consumer loans equaled $32.9 million, or 0.5% of total loans outstanding.

Asset Quality

Criticized and Classified Assets

The Company's management rates certain loans and leases as "other assets especially mentioned" ("OAEM"), "substandard" or "doubtful" based on criteria established under banking regulations. These loans and leases are

collectively referred to as "criticized" assets. Loans and leases rated OAEM have potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment
prospects of the loan or lease at some future date. Loans and leases rated as substandard are inadequately protected by the payment capacity of the obligor or of the collateral pledged, if any. Substandard loans and leases have a well-
defined weakness or weaknesses that jeopardize the liquidation of debt and are characterized by the distinct possibility that the Company will sustain some loss if existing deficiencies are not corrected. Loans and leases rated as doubtful
have well-defined weaknesses that jeopardize the orderly liquidation of debt and partial loss of principal is likely. As of December 31, 2020, the Company had $72.8 million of total assets that were designated as criticized. This compares
to $67.2 million of assets designated as criticized as of December 31, 2019. The increase of $5.6 million in criticized assets was primarily due to two construction relationships totaling $7.6 million, six commercial real estate relationships
totaling $7.5 million, and various equipment financing relationships totaling $7.0 million which become criticized during the year ending December 31, 2020, partially offset by the three commercial real estate relationships totaling $16.7
million paid off and charged off during the year ending December 31, 2020.

Nonperforming Assets

"Nonperforming assets" consist of nonaccrual loans and leases, other real estate owned ("OREO") and other repossessed assets. Under certain circumstances, the Company may restructure the terms of a loan or lease as a concession
to a borrower, except for acquired loans and leases which are individually evaluated against expected performance on the date of acquisition. These restructured loans and leases are generally considered "nonperforming loans and leases"
until a history of collection of at least six months on the restructured terms of the loan or lease has been established. OREO consists of real estate acquired through foreclosure proceedings and real estate acquired through acceptance of a
deed in lieu of foreclosure. Other repossessed assets consist of assets that have been acquired through foreclosure that are not real estate and are included in other assets on the Company's consolidated balance sheets.

Accrual of interest on loans generally is discontinued when contractual payment of principal or interest becomes past due 90 days or, if in management's judgment, reasonable doubt exists as to the full timely collection of interest.

Prior to the adoption of ASC 326, loans categorized as ASC 310-30 (purchased loans with deteriorating credit quality) accrued regardless of past due status. Exceptions may be made if the loan has matured and is in the process of renewal
or is well-secured and in the process of collection. When a loan is placed on non-accrual status, interest accruals cease and uncollected accrued interest is reversed and charged against current interest income. Interest payments on non-
accrual loans are generally applied to principal. If collection of the principal is reasonably assured, interest payments are recognized as income on the cash basis. Loans are generally returned to accrual status when principal and interest
payments are current, full collectability of principal and interest is reasonably assured and a consistent record of at least six months of performance has been achieved. The adoption of ASC 326 required purchase credit-impaired loans to
be classified as non-accruing based on performance.

In cases where a borrower experiences financial difficulties and the Company makes or reasonably expects to make certain concessionary modifications to contractual terms, the loan is classified as a troubled debt restructured loan.
In determining whether a debtor is experiencing financial difficulties, the Company considers, among other factors, if the debtor is in payment default or is likely to be in payment default in the foreseeable future without the modification,
the debtor declared or is in the process of declaring bankruptcy, there is substantial doubt that the debtor will continue as a going concern, the debtor's entity-specific projected cash flows will not be sufficient to service its debt, or the
debtor cannot obtain funds from sources other than the existing creditors at market terms for debt with similar risk characteristics.

38

 
Table of Contents

As of December 31, 2020, the Company had nonperforming assets of $45.0 million, representing 0.50% of total assets, compared to nonperforming assets of $22.1 million, or 0.28% of total assets as of December 31, 2019. The

increase was primarily driven by the adoption of ASC 326 which required purchase credit-impaired loans to be classified as non-accruing based on performance. There were $9.0 million loans previously categorized as performing assets
that are now classified as non-accruing. This amount includes one commercial relationship of $4.3 million and one construction relationship of $3.9 million. In addition, there was one commercial relationship classified as OREO in the
amount of $5.4 million during the year ending December 31, 2020.

The Company evaluates the underlying collateral of each nonaccrual loan and lease and continues to pursue the collection of interest and principal. Management believes that the current level of nonperforming assets remains
manageable relative to the size of the Company's loan and lease portfolio. If economic conditions were to worsen or if the marketplace were to experience prolonged economic stress, management believes it is likely that the level of
nonperforming assets would increase, as would the level of charged-off loans.        

Past Due and Accruing

From March 1, 2020 through the earlier of January 1, 2022 or 60 days after the termination date of the national emergency declared by the President on March 13, 2020 concerning the COVID-19 outbreak (the “national emergency”), a
financial institution may elect to suspend the requirements under U.S. GAAP for loan modifications related to the COVID-19 pandemic that would otherwise be categorized as a troubled debt restructured, including impairment accounting.
This troubled debt restructuring relief applies for the term of the loan modification that occurs during the applicable period for a loan that was not more than 30 days past due as of December 31, 2019.

As of December 31, 2020, the Company had loans and leases greater than 90 days past due and accruing of $12.0 million, or 0.16% of total loans and leases, compared to $10.1 million, or 0.15% of total loans and leases, as of
December 31, 2019, representing an increase of $1.9 million. The increase in 90 days past due and accruing loans was primarily due to three commercial relationships totaling $3.5 million, one construction relationship of $3.8 million and
one commercial real estate relationship of $4.7 million 90 days past due and accruing, partially offset by $9.0 million of past due and accruing acquired loans previously accounted for under ASC 310-30, which are now disclosed as being
on non-accrual status.

39

Table of Contents

The following table sets forth information regarding nonperforming assets for the periods indicated:

2020

2019

At December 31,
2018
(Dollars in Thousands)

2017

2016

Nonperforming loans and leases:
Nonaccrual loans and leases:
Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans

Commercial
Equipment financing
Condominium association

Total commercial loans and leases

Residential mortgage
Home equity
Other consumer

Total consumer loans

Total nonaccrual loans and leases

Other real estate owned
Other repossessed assets

Total nonperforming assets

Loans and leases past due greater than 90 days

and accruing

Total delinquent loans and leases 61-90 days

past due

Restructured loans and leases not included in

nonperforming assets

Total nonaccrual loans and leases as a

percentage of total loans and leases

Total nonperforming assets as a percentage of

total assets

Total delinquent loans and leases 61-90 days

past due as a percentage of total loans and leases

Troubled Debt Restructured Loans and Leases

$

$

$

$

$

$

3,300 
— 
3,853 
7,153 

7,702 
16,757 
112 
24,571 

5,587 
1,136 
1 
6,724 

38,448 

5,415 
1,100 
44,963 

11,975 

16,129 

11,483 

0.53 

0.50 

0.22 

%

%

%

$

$

$

2,845 
84 
— 
2,929 

4,909 
9,822 
151 
14,882 

753 
896 
1 
1,650 

19,461 

— 
2,631 
22,092 

10,109 

4,978 

17,076 

0.29 

0.28 

0.07 

%

%

%

$

$

$

3,928 
330 
396 
4,654 

6,621 
9,500 
265 
16,386 

2,132 
908 
17 
3,057 

24,097 

3,054 
965 
28,116 

13,482 

3,308 

12,257 

0.38 

0.38 

0.05 

%

%

%

$

$

$

3,313 
608 
860 
4,781 

11,619 
8,106 
— 
19,725 

1,979 
744 
43 
2,766 

27,272 

3,235 
1,184 
31,691 

3,020 

7,376 

16,241 

0.48 

0.47 

0.13 

%

%

%

5,340 
1,404 
— 
6,744 

22,974 
6,758 
— 
29,732 

2,501 
951 
149 
3,601 

40,077 

618 
781 
41,476 

7,077 

7,350 

13,883 

0.74 

0.64 

0.14 

%

%

%

Total TDR loans decreased by $4.2 million to $19.0 million at December 31, 2020 from $23.2 million at December 31, 2019. The decrease was driven primarily by the payments and payoffs of the commercial and construction

TDRs during the year ending December 31, 2020.

40

Table of Contents

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

Troubled debt restructurings:

Commercial real estate mortgage
Multi-family mortgage
Construction
Commercial
Equipment financing
Residential mortgage
Home equity

Total troubled debt restructurings

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

Troubled debt restructurings:

On accrual
On nonaccrual
Total troubled debt restructurings

Changes in troubled debt restructured loans and leases were as follows for the periods indicated:

Balance at beginning of period
Additions
Net charge-offs
Repayments

Balance at end of period

At December 31, 2020

At December 31, 2019

(Dollars in Thousands)

1,599 
— 
— 
6,515 
6,699 
2,054 
2,092 
18,959 

$

$

At December 31, 2020

At December 31, 2019

(Dollars in Thousands)

11,483 
7,476 
18,959 

$

$

Year ended December 31,

2020

2019

(Dollars in Thousands)

23,180  $
2,940 
(830)
(6,331)
18,959  $

1,674 
85 
2,942 
8,995 
5,555 
2,067 
1,862 
23,180 

17,076 
6,104 
23,180 

20,941 
16,484 
(1,964)
(12,281)
23,180 

$

$

$

$

$

$

The Coronavirus Aid, Relief and Economic Security ("CARES") Act and regulatory guidance issued by the Federal banking agencies provides that certain short-term loan modifications to borrowers experiencing financial distress as
a result of the economic impacts created by the COVID-19 pandemic are not required to be treated as TDRs under GAAP. As such, the Company suspended TDR accounting for COVID-19 pandemic related loan modifications meeting the
loan modification criteria set forth under the CARES Act or as specified in the regulatory guidance. Further, loans granted payment deferrals related to the COVID-19 pandemic are not required to be reported as past due or placed on non-
accrual status (provided the loans were not past due or on non-accrual status prior to the deferral). As of December 31, 2020, the Company granted 4,989 short-term deferments on loan and lease balances totaling $1.1 billion. Of these
modifications, 4,691 loans and leases with total balances of $1.0 billion have returned to payment status and 298 loans and leases with total balances of $90.4 million remain on the deferral status, which represents 1.2% of total loan and
leases balances.

Allowances for Credit Losses

The allowance for credit losses consists of general and specific allowances and reflects management's estimate of expected loan and lease losses over the life of loan or lease. Management uses a consistent and systematic process and

methodology to evaluate the adequacy of the allowance for credit losses on a quarterly basis. Management continuously evaluates and challenges inputs and assumptions in the allowance for credit losses.

41

 
 
 
 
 
 
 
 
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While management evaluates currently available information in establishing the allowance for credit losses, future adjustments to the allowance for loan and lease losses may be necessary if conditions differ substantially from the
assumptions used in making the evaluations. Management performs a comprehensive review of the allowance for credit losses on a quarterly basis. In addition, various regulatory agencies, as an integral part of their examination process,
periodically review a financial institution's allowance for credit losses and carrying amounts of other real estate owned. Such agencies may require the financial institution to recognize additions or reductions to the allowance based on their
judgments about information available to them at the time of their examination.

The Company’s allowance methodology provides a quantification of probable losses in the portfolio. Under the current methodology, management estimates losses over the life of the loan using reasonable and supportable forecasts.

Forecasts, loan data, and model documentation are extensively analyzed and reviewed throughout the quarter to ensure estimated losses are accurate at quarter end. Qualitative adjustments are applied when model output does not align
with management expectations. These adjustments are thoroughly reviewed and documented to provide clarity and a reasonable basis for any deviations from the model. For December 31, 2020, qualitative adjustments were applied to the
CRE, C&I, and Retail portfolios resulting in a net addition in total reserves compared to modeled calculations.

The following tables present the changes in the allowance for loans and lease losses by portfolio category for the years ended December 31, 2020, 2019, 2018, 2017, and 2016, respectively.

Balance at December 31, 2019

Adoption of ASU 2016-13 (CECL)
Balance at beginning of period, adjusted
Charge-offs
Recoveries
Provision for loan and lease losses

Balance at December 31, 2020

Total loans and leases

Total allowance for loan and lease losses as a percentage of total loans and leases

Balance at December 31, 2018

Charge-offs
Recoveries

Provision for loan and lease losses

Balance at December 31, 2019

Total loans and leases

Total allowance for loan and lease losses as a percentage of total loans and leases

Commercial 
Real Estate

Commercial

Consumer

Total

Year Ended December 31, 2020

30,285 
11,694 
41,979 
(3,514)
94 
41,573 
80,132 

3,823,826 

2.10 %

Commercial 
Real Estate

28,187 
— 
— 
2,098 
30,285 

3,669,222 

0.83 %

$

$

$

$

$

$

(In Thousands)

24,826 
(2,672)
22,154 
(11,113)
1,407 
17,050 
29,498 

2,274,899 

1.30 %

$

$

$

5,971 
(2,390)
3,581 
(36)
201 
1,003 
4,749 

1,170,828 

0.41 %

Year Ended December 31, 2019

Commercial

Consumer

(In Thousands)

25,283 
(8,911)
1,688 
6,766 
24,826 

1,838,748 

1.35 %

$

$

$

5,222 
(127)
179 
697 
5,971 

1,229,846 

0.49 %

$

$

$

$

$

$

61,082 
6,632 
67,714 
(14,663)
1,702 
59,626 
114,379 

7,269,553 

1.57 %

Total

58,692 
(9,038)
1,867 
9,561 
61,082 

6,737,816 

0.91 %

$

$

$

$

$

$

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Table of Contents

Balance at December 31, 2017

Charge-offs
Recoveries

Provision for loan and lease losses

Balance at December 31, 2018

Total loans and leases

Allowance for loan and lease losses as a percentage of total loans and leases

Balance at December 31, 2016

Charge-offs
Recoveries

Provision (credit) for loan and lease losses

Balance at December 31, 2017

Total loans and leases

Allowance for loan and lease losses as a percentage of total loans and leases

Balance at December 31, 2015

Charge-offs
Recoveries

Provision (credit) for loan and lease losses

Balance at December 31, 2016

Total loans and leases

Allowance for loan and lease losses as a percentage of total loans and leases

Commercial 
Real Estate

Commercial

Consumer

Total

Year Ended December 31, 2018

$

$

$

$

$

$

$

$

$

27,112 
(103)
— 
1,178 
28,187 

3,351,736 

0.84 %

Commercial 
Real Estate

27,645 
(494)
476 
(515)
27,112 

3,075,777 

0.88 %

Commercial 
Real Estate

30,151 
(2,169)
— 
(337)
27,645 

2,918,567 

0.95 %

$

$

$

$

$

$

$

$

$

(In Thousands)

26,333 
(6,585)
2,287 
3,248 
25,283 

1,768,958 

1.43 %

$

$

$

5,147 
(540)
290 
325 
5,222 

1,182,822 

0.44 %

Year Ended December 31, 2017

Commercial

Consumer

(In Thousands)

20,906 
(14,914)
1,158 
19,183 
26,333 

1,624,111 

1.62 %

$

$

$

5,115 
(403)
319 
116 
5,147 

1,030,791 

0.50 %

$

$

$

$

$

$

58,592 
(7,228)
2,577 
4,751 
58,692 

6,303,516 

0.93 %

Total

53,666 
(15,811)
1,953 
18,784 
58,592 

5,730,679 

1.02 %

Year Ended December 31, 2016

Commercial

Consumer

Total

(In Thousands)

22,018 
(10,516)
642 
8,762 
20,906 

1,495,408 

1.40 %

$

$

$

4,570 
(1,982)
750 
1,777 
5,115 

984,889 

0.52 %

$

$

$

56,739 
(14,667)
1,392 
10,202 
53,666 

5,398,864 

0.99 %

Beginning January 1, 2020, the Company implemented the CECL methodology to calculate the allowance for credit losses. As of January 1, 2020, the Company increased the allowance for loan and lease losses by $6.6 million, and
increased the allowances for the unfunded commitment by $8.9 million due to CECL which requires the inclusion of the credit losses over the expected life of the loans, as well as consideration of the risks based on the current conditions
and reasonable and supportable forecasts about the future.

At December 31, 2020, the allowance for loan and lease losses increased to $114.4 million, or 1.57% of total loans and leases outstanding, as a result of the latest available forecast of the economic effects of the COVID-19 pandemic
on the Company's loan and lease portfolios. This excluded PPP loans which are not subject to an allowance reserve since they are guaranteed by the SBA. This compared to an allowance for loan and lease losses of $61.1 million, or 0.91%
of total loans and leases outstanding, as of December 31, 2019. Prior to January 1, 2020, the Company calculated the allowance for loan and lease losses using the incurred losses methodology.

43

Table of Contents

Net charge-offs in the loans and leases for year ending December 31, 2020 and 2019 were $13.0 million and $7.2 million, respectively. The increase in the net charge-offs of $5.8 million was driven primarily by the charge-offs on

four commercial real estate relationships of $3.6 million as well as the increase on the charge-offs on commercial loans by $1.9 million loans and equipment financing loans by $0.5 million.

Management believes that the allowance for loan and lease losses as of December 31, 2020 is appropriate based on the facts and circumstances discussed further below.

The following tables set forth the Company's percent of allowance for loan and lease losses to the total allowance for loan and lease losses and the percent of loans to total loans for each of the categories listed at the dates indicated.

Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans

Commercial
Equipment financing
Condominium association

Total commercial loans and leases

Residential mortgage
Home equity
Other consumer

Total consumer loans

Total

Amount

46,357 
22,559 
11,216 
80,132 
8,089 
21,292 
117 
29,498 
1,967 
2,504 
278 
4,749 
114,379 

$

$

2020

Percent of 
Allowance 
to Total 
Allowance

Percent of 
Loans 
in Each 
Category to 
Total 
Loans

Amount

At December 31,
2019

Percent of 
Allowance 
to Total 
Allowance

(Dollars in Thousands)

Percent of 
Loans 
in Each 
Category to 
Total 
Loans

40.6  %
19.7  %
9.8  %
70.1  %
7.1  %
18.6  %
0.1  %
25.8  %
1.7  %
2.2  %
0.2  %
4.1  %
100.0  %

35.4 % $
13.9 %
3.2 %
52.5 %
15.6 %
15.0 %
0.7 %
31.3 %
10.9 %
4.8 %
0.5 %
16.2 %
100.0 % $

21,519 
6,436 
2,330 
30,285 
12,849 
11,595 
382 
24,826 
3,717 
2,132 
122 
5,971 
61,082 

44

35.3  %
10.5  %
3.8  %
49.6  %
21.0  %
19.0  %
0.6  %
40.6  %
6.1  %
3.5  %
0.2  %
9.8  %
100.0  %

37.0 % $
13.8 %
3.7 %
54.5 %
10.8 %
15.6 %
0.8 %
27.2 %
12.1 %
5.6 %
0.6 %
18.3 %
100.0 % $

2018

Percent of 
Allowance 
to Total 
Allowance

Percent of 
Loans 
in Each 
Category to 
Total 
Loans

35.4  %
10.1  %
2.5  %
48.0  %
23.9  %
18.6  %
0.6  %
43.1  %
5.2  %
3.5  %
0.2  %
8.9  %
100.0  %

37.0 %
13.4 %
2.7 %
53.1 %
11.7 %
15.6 %
0.8 %
28.1 %
12.4 %
6.0 %
0.4 %
18.8 %
100.0 %

Amount

20,779 
5,915 
1,494 
28,188 
14,047 
10,888 
347 
25,282 
3,076 
2,047 
99 
5,222 
58,692 

Table of Contents

Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans

Commercial
Equipment financing
Condominium association

Total commercial loans and leases

Residential mortgage
Home equity
Other consumer

Total consumer loans

Total

2017

Percent of 
Allowance 
to Total 
Allowance

At December 31,

Percent of 
Loans 
in Each 
Category to 
Total 
Loans

Amount

(Dollars in Thousands)

2016

Percent of 
Allowance 
to Total 
Allowance

Percent of 
Loans 
in Each 
Category to 
Total 
Loans

34.3  %
9.7  %
2.3  %
46.3  %
26.2  %
18.1  %
0.7  %
45.0  %
4.7  %
3.8  %
0.2  %
8.7  %
100.0  %

38.0 % $
13.3 %
2.4 %
53.7 %
12.3 %
15.1 %
0.9 %
28.3 %
11.5 %
6.2 %
0.3 %
18.0 %
100.0 % $

19,354 
5,528 
2,763 
27,645 
10,096 
10,345 
465 
20,906 
2,587 
2,356 
172 
5,115 
53,666 

36.1  %
10.3  %
5.1  %
51.5  %
18.8  %
19.3  %
0.9  %
39.0  %
4.8  %
4.4  %
0.3  %
9.5  %
100.0  %

38.1 %
13.5 %
2.5 %
54.1 %
11.8 %
14.8 %
1.1 %
27.7 %
11.6 %
6.3 %
0.3 %
18.2 %
100.0 %

Amount

20,089 
5,667 
1,356 
27,112 
15,366 
10,586 
381 
26,333 
2,743 
2,219 
185 
5,147 
58,592 

$

$

Investment Securities and Restricted Equity Securities

The investment portfolio exists primarily for liquidity purposes, and secondarily as sources of interest and dividend income, interest-rate risk management and tax planning as a counterbalance to loan and deposit flows. Investment
securities are utilized as part of the Company's asset/liability management and may be sold in response to, or in anticipation of, factors such as changes in market conditions and interest rates, security prepayment rates, deposit outflows,
liquidity concentrations and regulatory capital requirements.

The investment policy of the Company, which is reviewed and approved by the Board of Directors on an annual basis, specifies the types of investments that are acceptable, required investment ratings by at least one nationally

recognized rating agency, concentration limits and duration guidelines. Compliance with the investment policy is monitored on a regular basis. In general, the Company seeks to maintain a high degree of liquidity and targets cash, cash
equivalents and investment securities available-for-sale balances between 10% and 30% of total assets.

Cash, cash equivalents, and investment securities increased $514.1 million, or 77.1%, to $1.2 billion as of December 31, 2020 from $667.1 million as of December 31, 2019. The increase was primarily driven by growth in short-term

investments and investment securities available-for-sale. Cash, cash equivalents, and investment securities were 13.21% of total assets as of December 31, 2020, compared to 8.49% of total assets at December 31, 2019.

45

Table of Contents

The following table sets forth certain information regarding the amortized cost and market value of the Company's investment securities at the dates indicated:

Investment securities available-for-sale:
GSE debentures
GSE CMOs
GSE MBSs
SBA commercial loan asset- backed securities
Corporate debt obligations
U.S. Treasury bonds
Foreign government obligations

Total investment securities available-for-sale

Investment securities held-to-maturity:

GSE debentures
GSE MBSs
Municipal obligations
Foreign government obligations

Total investment securities held-to-maturity

Equity securities held-for-trading

Restricted equity securities:

FHLBB stock
FRB stock

Other

Total restricted equity securities

2020

Amortized 
Cost

Fair Value

Amortized 
Cost

At December 31,
2019

Fair Value

(In Thousands)

2018

Amortized 
Cost

Fair Value

$

$

$

$

$

$

$

$

$

$

$

$

273,820 
44,937 
312,658 
— 
22,299 
70,339 
500 
724,553 

— 
— 
— 
— 
— 

— 

31,293 
18,241 
252 
49,786 

278,645  $
46,028 
323,609 
— 
23,467 
73,577 
496 
745,822  $

— 
— 
— 
— 
— 

$

$

526  $

  $

  $

182,922 
87,001 
153,049 
34 
28,484 
44,675 
— 
496,165 

$

$

31,228  $
9,360 
45,692 
500 
86,780  $

— 

$

35,482 
18,084 
252 
53,818 

185,803 
85,932 
153,343 
34 
28,986 
44,897 
— 
498,995 

$

$

31,290  $
9,279 
46,514 
478 
87,561  $

3,581 

$

  $

  $

$

$

$

$

$

184,072 
107,363 
169,334 
51 
40,618 
13,812 
— 
515,250 

50,546 
11,426 
52,304 
500 
114,776 

— 

43,655 
17,995 
101 
61,751 

181,079 
103,130 
165,089 
51 
39,708 
13,736 
— 
502,793 

49,601 
11,131 
51,598 
500 
112,830 

4,207 

Total investment securities and restricted equity securities primarily consist of investment securities available-for-sale, investment securities held-to-maturity, stock in the FHLBB and stock in the FRB. The total securities portfolio

increased $153.0 million, or 23.8% since December 31, 2019. As of December 31, 2020, total securities portfolio was 8.90% of total assets, compared to 8.19% of total assets as of December 31, 2019.

The fair value of investment securities is based principally on market prices and dealer quotes received from third-party, nationally-recognized pricing services for identical investment securities such as U.S. Treasury and agency
securities. The Company's equity securities held-for-trading are priced this way and are included in Level 1. These prices are validated by comparing the primary pricing source with an alternative pricing source when available. When
quoted market prices for identical securities are unavailable, the Company uses market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited to market
interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include certain U.S. and government agency debt securities, municipal and corporate debt securities, GSE residential
MBSs and CMOs, trust preferred securities, and equity securities held-for-trading, all of which are included in Level 1 and 2.

Additionally, management reviews changes in fair value from period to period and performs testing to ensure that prices received from the third parties are consistent with their expectation of the market. Changes in the prices
obtained from the pricing service are analyzed from month to month, taking into consideration changes in market conditions including changes in mortgage spreads, changes in U.S. Treasury security yields and changes in generic pricing
of 15-year and 30-year securities.

46

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Additional analysis may include a review of prices provided by other independent parties, a yield analysis, a review of average life changes using Bloomberg analytics and a review of historical pricing for the particular security.

As of December 31, 2020, the fair value of all investment securities available-for-sale was $745.8 million and carried a total of $21.3 million of net unrealized gains, compared to a fair value of $499.0 million and net unrealized gains

of $2.8 million as of December 31, 2019. As of December 31, 2020, $86.9 million, or 11.7%, of the portfolio, had gross unrealized losses of $0.7 million. This compares to $205.6 million, or 41.2%, of the portfolio with gross unrealized
losses of $1.8 million as of December 31, 2019. The Company's unrealized loss position decreased in 2020 driven by a change in the portfolio mix from shorter duration MBS to longer duration agency debentures. For additional discussion
on investment securities available-for-sale by security type, see Note 4, "Investment Securities."

The Company reviews its debt securities portfolio on a quarterly basis in accordance with ASC 326. This analysis is done using probability of default ("PD") and loss given default ("LGD") assumptions where a model is created to

determine current expected credit loss (CECL) for the remaining life of the securities. For the year ended December 31, 2020, the company did not recognize an amount as allowance or provision for credit loss. For additional discussion on
how the Company validates fair values provided by the third-party pricing service, see Note 21, “Fair Value of Financial Instruments.”

Effective March 31, 2020, all investment securities classified as held-to-maturity were reclassified as available for sale to prudently reflect the ability and intent to not hold these assets to maturity due to the economic uncertainty
created by the COVID-19 pandemic. As of December 31, 2019, the fair value of investment securities held-to-maturity was $87.6 million with net unrealized gains of $0.8 million. As of December 31, 2019, $22.3 million, or 25.5% of the
portfolio had gross unrealized losses of $0.2 million.

Maturities, calls and principal repayments for investment securities available-for-sale totaled $214.6 million for the year ended December 31, 2020 compared to $68.2 million for the same period in 2019. For the year ended
December 31, 2020, the Company sold $142.7 million of investment securities available for sale, compared to none for the same period in 2019. For the year ended December 31, 2020, the Company purchased $503.5 million of
investment securities available-for-sale, compared to $50.4 million for the same period in 2019.

Maturities, calls and principal repayments for investment securities held-to-maturity totaled $6.3 million for the year ended December 31, 2020 compared to $28.9 million for the same period in 2019. There were no sales of
investment securities held-to-maturity for the ended December 31, 2020 and 2019. For the year ended December 31, 2020, the Company did not purchase any investment securities held-to-maturity, compared to $1.4 million in purchases
of investment securities held-to-maturity for the same period in 2019. During the three months ended September 30, 2020, all held-to-maturity securities were transferred to the available-for-sale portfolio.

Restricted Equity Securities

FHLBB Stock—The Company invests in the stock of the FHLBB as one of the requirements to borrow. The Company maintains an excess balance of capital stock, which allows for additional borrowing capacity at each of the Banks.

As of December 31, 2020, the excess balance of capital stock is $1.0 million, as compared to $0.7 million at December 31, 2019.

As of December 31, 2020, the Company owned stock in the FHLBB with a carrying value of $31.3 million, a decrease of $4.2 million from $35.5 million as of December 31, 2019. As of December 31, 2020, the FHLBB had total

assets of $38.5 billion and total capital of $2.8 billion, of which $1.5 billion was retained earnings. The FHLBB stated that it remained in compliance with all regulatory capital ratios as of December 31, 2020 and was classified as
"adequately capitalized" by its regulator, based on the FHLBB's financial information as of September 30, 2020. See Note 5, "Restricted Equity Securities" to the consolidated financial statements for further information about the FHLBB.

Federal Reserve Bank Stock—The Company invests in the stock of the Federal Reserve Bank of Boston, as a condition of the membership for the Banks in the Federal Reserve System. In 2020, the Company maintained its

investment in the stock of the Federal Reserve Bank of Boston to adjust for deposit growth. The FRB is the primary federal regulator for the Company and the Banks.

47

Table of Contents

Carrying Value, Weighted Average Yields, and Contractual Maturities of Investment and Restricted Equity Securities

The table below sets forth certain information regarding the carrying value, weighted average yields and contractual maturities of the Company's investment and restricted equity securities portfolio at the date indicated. 

One Year or Less

Carrying 
Value

Weighted 
Average 
Yield (1)

After One Year 
Through Five Years

Carrying 
Value

Weighted 
Average 
Yield (1)

Balance at December 31, 2020
After Five Years 
Through Ten Years

After Ten Years

Total

Carrying 
Value

Weighted 
Average 
Yield (1)

Carrying 
Value

Weighted 
Average 
Yield (1)

Carrying 
Value

Weighted 
Average 
Yield (1)

(Dollars in Thousands)

Investment securities available-for-sale:

GSE debentures
GSE CMOs
GSE MBSs
Corporate debt obligations
U.S. Treasury bonds
Foreign government obligations

$

Total investment securities available-for-sale

$

Equity securities held-for-trading (2)
Restricted equity 
securities (2):

FHLBB stock
FRB stock
Other stock

Total restricted equity securities

$

$

30,365 
— 
1,648 
— 
— 
— 
32,013 

— 
— 
— 
— 

1.97  % $
—  %
2.96  %
—  %
—  %
—  %
2.02  % $

—  % $
—  %
—  %
—  % $

103,133 
— 
6,307 
23,467 
19,860 
496 
153,263 

— 
— 
— 
— 

_______________________________________________________________________________

(1) Yields have been calculated on a tax-equivalent basis.

(2) Equity securities have no contractual maturity, therefore they are reported above in the over ten year maturity column.

2.17  % $
—  %
1.78  %
2.53  %
2.19  %
3.25  %
2.22  % $

—  % $
—  %
—  %
—  % $

48

135,342 
1,779 
34,730 
— 
53,717 
— 
225,568 

— 
— 
— 
— 

1.32  % $
1.47  %
1.93  %
—  %
1.39  %
—  %
1.43  % $

—  % $
—  %
—  %
—  % $

9,805 
44,249 
280,924 
— 
— 
— 
334,978 

31,293 
18,241 
252 
49,786 

2.00  % $
1.72  %
1.87  %
—  %
—  %
—  %
1.86  % $

4.64  % $
6.00  %
—  %
5.14  % $

278,645 
46,028 
323,609 
23,467 
73,577 
496 
746,348 

526 

31,293 
18,241 
252 
49,786 

1.73  %
1.71  %
1.88  %
2.53  %
1.60  %
3.25  %
1.81  %

3.87  %

4.64  %
6.00  %
—  %

5.14  %

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Deposits

The following table presents the Company's deposit mix at the dates indicated.

2020

Percent 
of Total

Amount

Weighted 
Average 
Rate

Amount

At December 31,
2019

Percent 
of Total
(Dollars in Thousands)

Weighted 
Average 
Rate

Amount

2018

Percent 
of Total

Weighted 
Average 
Rate

Non-interest-bearing deposits:
Demand checking accounts

Interest-bearing deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest-bearing deposits

Total deposits

$

$

1,592,205 

23.0 %

—  % $

1,141,578 

19.6 %

—  % $

1,033,551 

19.0 %

513,948 
701,659 
2,018,977 
1,389,998 
693,909 
5,318,491 
6,910,696 

7.4 %
10.2 %
29.2 %
20.1 %
10.0 %
77.0 %
100.0 %

0.09  %
0.13  %
0.31  %
1.44  %
0.39  %
0.57  %
0.44  % $

371,380 
613,467 
1,682,005 
1,671,738 
349,904 
4,688,494 
5,830,072 

6.4 %
10.5 %
28.9 %
28.7 %
6.0 %
80.4 %
100.0 %

0.11  %
0.46  %
1.15  %
2.28  %
2.18  %
1.46  %
1.17  % $

336,317 
619,961 
1,675,050 
1,438,478 
350,687 
4,420,493 
5,454,044 

6.2 %
11.4 %
30.7 %
26.3 %
6.4 %
81.0 %
100.0 %

—  %

0.10  %
0.32  %
1.18  %
2.07  %
2.33  %
1.14  %

0.92  %

The Company seeks to increase its core (non-certificate of deposit) deposits and decrease its loan-to-deposit ratio over time, while continuing to increase deposits as a percentage of total funding sources. The Company's loan-to-

deposit ratio was 105.2% as of December 31, 2020, compared to 115.6% as of December 31, 2019.

Total deposits increased $1.1 billion, or 18.5%, to $6.9 billion as of December 31, 2020, compared to $5.8 billion as of December 31, 2019. Deposits as a percentage of total assets increased from 74.2% as of December 31, 2019 to

77.3% as of December 31, 2020. The increase in deposits as a percentage of total assets is primarily due to the growth in the core deposit accounts. The decrease in certificate of deposit accounts was offset by the increase in brokered
deposit accounts.

In 2020, core deposits increased $1.0 billion. The ratio of core deposits to total deposits increased from 65.3% as of December 31, 2019 to 69.8% as of December 31, 2020, due to an increase in all core deposit accounts.

Certificate of deposit accounts decreased $0.3 billion to $1.4 billion as of December 31, 2020, compared to $1.7 billion as of December 31, 2019. Certificate of deposit accounts have decreased as a percentage of total deposits to

20.1% as of December 31, 2020 from 28.7% as of December 31, 2019.

Brokered deposits increased $344.0 million to $693.9 million as of December 31, 2020, compared to $349.9 as of December 31, 2019. Brokered deposits have increased as a percentage of total deposits to 10.0% as of December 31,
2020 from 6.0% as of December 31, 2019. The increase in Brokered deposits was driven by two new product offerings. Brokered deposits allow the Company to seek additional funding by attracting deposits from outside the Company's
core market. The Company's investment policy limits the amount of brokered deposits to 15% of total assets.

The Company's growth in deposits and the shift in the mix of deposits in 2020 and 2019 were due in part to expansion of the Company's cash management services and increased efforts in seeking deposits from existing customer

relationships. A rise in interest rates could cause a shift from core deposit accounts to certificate of deposit accounts with longer maturities. Generally, the rates paid on certificates of deposit are higher than those paid on core deposit
accounts.

The following table sets forth the distribution of the average balances of the Company's deposit accounts for the years indicated and the weighted average interest rates on each category of deposits presented. Averages for the years

presented are based on daily balances.

49

 
 
 
 
 
 
 
 
 
Table of Contents

2020
Percent 
of Total 
Average 
Deposits

Average 
Balance

Weighted 
Average 
Rate

Average 
Balance

Year Ended December 31,
2019
Percent 
of Total 
Average 
Deposits
(Dollars in Thousands)

Weighted 
Average 
Rate

Average 
Balance

2018
Percent 
of Total 
Average 
Deposits

Weighted 
Average 
Rate

Core deposits:
Non-interest-bearing demand checking
accounts
NOW accounts
Savings accounts
Money market accounts
Total core deposits
Certificate of deposit accounts
Brokered deposit accounts

Total deposits

$

$
$

1,451,556 
408,374 
670,217 
1,817,085 
4,347,232 
1,577,104 
512,803 
6,437,139 

22.5 %
6.3 %
10.4 %
28.2 %
67.5 %
24.5 %
8.0 %
100.0 %

—  % $

0.12  %
0.22  %
0.52  %
0.40  %
1.92  %
1.28  % $
0.75  % $

1,070,859 
339,275 
608,022 
1,682,676 
3,700,832 
1,611,389 
344,961 
5,657,182 

18.9 %
6.0 %
10.7 %
29.7 %
65.4 %
28.5 %
6.1 %
100.0 %

—  % $

0.13  %
0.48  %
1.26  %
0.66  %
2.25  %
2.54  % $
1.23  % $

997,179 
340,194 
618,674 
1,715,057 
3,671,104 
1,191,970 
305,503 
5,168,577 

19.3 %
6.6 %
12.0 %
33.1 %
71.0 %
23.1 %
5.9 %
100.0 %

—  %
0.08  %
0.29  %
0.90  %
0.48  %
1.60  %
1.80  %

0.81  %

As of December 31, 2020 and 2019, the Company had outstanding certificate of deposit of $100,000 or more, maturing as follows:

Amount

2020

Weighted 

Average Rate

At December 31,

(Dollars in Thousands)

Amount

2019

Weighted 

Average Rate

Maturity period:

Six months or less
Over six months through 12 months
Over 12 months

Total certificate of deposit of $100,000 or more

Borrowed Funds

$

$

459,828 
302,576 
154,343 
916,747 

1.63 
1.15 
1.83 

1.51 

%
%
%

%

$

$

410,973 
338,578 
373,632 
1,123,183 

The following table sets forth certain information regarding FHLBB advances, subordinated debentures and notes and other borrowed funds for the periods indicated: 

Borrowed funds:

Average balance outstanding
Maximum amount outstanding at any month end during the year
Balance outstanding at end of year
Weighted average interest rate for the period
Weighted average interest rate at end of period

Advances from the FHLBB

$

2020

1,033,643 
1,406,669 
820,247 
1.73 
1.51 

Year Ended December 31,
2019
(Dollars in Thousands)

$

%
%

$

920,385 
987,835 
902,749 
2.65 
2.53 

%
%

2.25 
2.36 
2.48 

2.36 

2018

1,075,446 
1,208,920 
920,542 
2.22 
2.55 

%
%
%

%

%
%

On a long-term basis, the Company intends to continue to increase its core deposits. The Company also uses FHLBB borrowings and other wholesale borrowings as part of the Company's overall strategy to fund loan growth and

manage interest-rate risk and liquidity. The advances are secured by a blanket security agreement which requires the Banks to maintain certain qualifying assets as collateral, principally mortgage loans and securities in an aggregate
amount at least equal to outstanding advances. The maximum amount that the FHLBB will advance to member institutions, including the Company, fluctuates from

50

Table of Contents

time to time in accordance with the policies of the FHLBB. The Company may also borrow from the FRB's "discount window" as necessary.

FHLBB borrowings decreased by $109.6 million to $648.8 million as of December 31, 2020 from the December 31, 2019 balance of $758.5 million. The decrease in FHLBB borrowings was primarily due to maturing advances from

the FHLBB.

Other Borrowed Funds

In addition to advances from the FHLBB and subordinated debentures and notes, the Company utilizes other funding

sources as part of the overall liquidity strategy. Those funding sources include repurchase agreements, committed and uncommitted lines of credit with several financial institutions.

The Company periodically enters into repurchase agreements with its larger deposit and commercial customers as part of its cash management services which are typically overnight borrowings. Repurchase agreements with

customers increased
$15.0 million to $57.7 million as of December 31, 2020 from $42.7 million as of December 31, 2019.

The Company has access to a $12.0 million committed line of credit as of December 31, 2020. As of December 31, 2020 and December 31, 2019, the Company did not have any borrowings on this committed line of credit

outstanding.

The Banks also have access to funding through several uncommitted lines of credit of $865.0 million. As of

December 31, 2020, the Company had $30.0 million in borrowings on outstanding uncommitted lines as compared to December 31, 2019, when the Company had $18.0 million borrowings on outstanding uncommitted lines.

Subordinated Debentures and Notes

In connection with the acquisition of Bancorp Rhode Island, Inc., the Company assumed three subordinated debentures issued by a subsidiary of Bancorp Rhode Island, Inc.

On September 15, 2014, the Company offered $75.0 million of 6.0% fixed-to-floating subordinated notes due September

15, 2029. The Company is obligated to pay 6.0% interest semiannually between September 2014 and September 2024. Subsequently, the Company is obligated to pay 3-month LIBOR plus 3.315% quarterly until the notes mature in
September 2029. As of December 31, 2020, the Company had capitalized costs of $0.9 million in relation to the issuance of these subordinated notes.

The following table summarizes the Company's subordinated debentures and notes at the dates indicated.

Issue Date

Rate

Maturity Date

Next Call Date

December 31, 2020

December 31, 2019

Carrying Amount

June 26, 2003

March 17, 2004

September 15, 2014

Variable; 
3-month LIBOR + 3.10%
Variable; 
3-month LIBOR + 2.79%
6.0% Fixed-to-Variable; 
3-month LIBOR + 3.315%

June 26, 2033

March 17, 2034

(Dollars in Thousands)

March 25, 2021

March 16, 2021

September 15, 2029

September 15, 2024

$

Total $

4,848 

$

4,772 

74,126 
83,746 

$

4,826 

4,739 

74,026 
83,591 

Derivative Financial Instruments

The Company has entered into loan level derivatives, risk participation agreements, and foreign exchange contracts with certain commercial customers and concurrently enters into offsetting swaps with third-party financial

institutions. The Company may also, from time to time, enter into risk participation agreements. The Company uses interest rate futures that are designated and qualify as cash flow hedging instruments.

51

 
Table of Contents

The following table summarizes certain information concerning the Company's loan level derivatives, risk participation agreements, and foreign exchange contracts at December 31, 2020 and 2019:

At December 31, 2020

At December 31, 2019

(Dollars in Thousands)

Loan level derivatives (Notional Amount):

Receive fixed, pay variable
Pay fixed, receive variable
Risk participation-out agreements
Risk participation-in agreements

Foreign exchange contracts (Notional Amount)
Buys foreign currency, sells U.S. currency
Sells foreign currency, buys U.S. currency

Fixed weighted average interest rate from the Company to counterparty
Floating weighted average interest rate from counterparty to the Company
Weighted average remaining term to maturity (in months)
Fair value:
Recognized as an asset:

Interest rate derivatives
Loan level derivatives
Risk participation-out agreements
Foreign exchange contracts

Recognized as a liability:
Loan level derivatives
Risk participation-in agreements
Foreign exchange contracts

Stockholders' Equity and Dividends

$

$

$

$

%
%

$

$

$

$

1,214,146 
1,214,146 
252,655 
60,619 

1,266 
1,273 
3.07 
0.99 
85 

8 
131,328 
1,843 
156 

131,328 
361 
148 

%
%

1,101,193 
1,101,193 
235,693 
55,281 

1,125 
1,230 
3.54 
2.88 
91 

— 
59,365 
1,229 
54 

59,365 
283 
53 

The Company's total stockholders' equity was $941.8 million as of December 31, 2020, representing a $3.8 million decrease compared to $945.6 million at December 31, 2019. The decrease primarily reflects dividends paid by the

Company of $36.4 million for the twelve months ended December 31, 2020, a reduction of $20.0 million due to repurchase shares of treasury stock, and $11.5 million due to the implementation of CECL, partially offset by net income
attributable to the Company of $47.6 million, and unrealized gain on securities available-for-sale of $14.2 million.

For the year ended December 31, 2020, the dividend payout ratio was 76.4%, compared to 40.0% for the year ended December 31, 2019. The dividends paid in the fourth quarter of 2020 represented the Company's 87th consecutive

quarter of dividend payments. The Company's quarterly dividend distribution was $0.115 per share for each quarter of 2020.

On December 4, 2019, the Company's Board of Directors approved a stock repurchase program (the "2020 Stock Repurchase Plan") authorizing management to repurchase up to $10.0 million of the Company’s common stock over a

period of twelve months commencing on January 1, 2020. On March 9, 2020, the Board of Directors approved an increase in the repurchase amount of $10.0 million bringing the total authorized amount to $20.0 million. Effective March
24, 2020, the Company suspended the 2020 Stock Repurchase Plan. On October 28, 2020, the Board of Directors authorized the resumption of the 2020 Stock Repurchase Plan. As of December 31, 2020, the Company repurchased
1,715,730 shares at a weighted average price of $11.66.

Stockholders' equity represented 10.53% of total assets as of December 31, 2020 and 12.04% of total assets as of December 31, 2019. Tangible stockholders' equity (total stockholders' equity less goodwill and identified intangible

assets, net) represented 8.86% of tangible assets (total assets less goodwill and identified intangible assets, net) as of December 31, 2020 and 10.15% as of December 31, 2019.

52

 
Table of Contents

Results of Operations

The primary drivers of the Company's net income are net interest income, which is strongly affected by the net yield on and growth of interest-earning assets and liabilities ("net interest margin"), the quality of the Company's assets,

its levels of non-interest income and non-interest expense, and its tax provision.

The Company's net interest income represents the difference between interest income earned on its investments, loans and leases, and its cost of funds. Interest income is dependent on the amount of interest-earning assets
outstanding during the period and the yield earned thereon. Cost of funds is a function of the average amount of deposits and borrowed money outstanding during the year and the interest rates paid thereon. The net interest margin is
calculated by dividing net interest income by average interest-earning assets. Net interest spread is the difference between the average rate earned on interest-earning assets and the average rate paid on interest-bearing liabilities. The
increases or decreases, as applicable, in the components of interest income and interest expense, expressed in terms of fluctuation in average volume and rate, are summarized under "Rate/Volume Analysis" below. Information as to the
components of interest income, interest expense and average rates is provided under "Average Balances, Net Interest Income, Interest-Rate Spread and Net Interest Margin" below.

Because the Company's assets and liabilities are not identical in duration and in repricing dates, the differential between the two is vulnerable to changes in market interest rates as well as the overall shape of the yield curve. These
vulnerabilities are inherent to the business of banking and are commonly referred to as "interest-rate risk." How interest-rate risk is measured and, once measured, how much interest-rate risk is taken are based on numerous assumptions
and other subjective judgments. See the discussion in the "Measuring Interest-Rate Risk" section of Item 7A, "Quantitative and Qualitative Disclosures about Market Risk" below.

The quality of the Company's assets also influences its earnings. Loans and leases that are not paid on a timely basis and exhibit other weaknesses can result in the loss of principal and/or interest income. Additionally, the Company

must make timely provisions to the allowance for loan and lease losses based on estimates of probable losses inherent in the loan and lease portfolio. These additions, which are charged against earnings, are necessarily greater when greater
probable losses are expected. Further, the Company incurs expenses as a result of resolving troubled assets. These variables reflect the "credit risk" that the Company takes on in the ordinary course of business and are further discussed
under "Financial Condition—Asset Quality" above.

Average Balances, Net Interest Income, Interest-Rate Spread and Net Interest Margin

The following table sets forth information about the Company's average balances, interest income and interest rates earned on average interest-earning assets, interest expense and interest rates paid on average interest-bearing
liabilities, interest-rate spread and net interest margin for the years ended December 31, 2020, 2019 and 2018. Average balances are derived from daily average balances and yields include fees, costs and purchase-accounting-related
premiums and discounts which are considered adjustments to coupon yields in accordance with GAAP. Certain amounts previously reported have been reclassified to conform to the current presentation.

53

Table of Contents

Assets:
Interest-earning assets:
Debt securities
Marketable and restricted equity securities
Short-term investments
Total investments

(2)

(2)

Commercial real estate loans 
Commercial loans 
Equipment financing 
Residential mortgage loans 
Other consumer loans 

(2)

(2)

(2)

Total loans and leases

Total interest-earning assets
Allowance for loan and lease losses
Non-interest-earning assets

Total assets

Liabilities and Stockholders' Equity:

Interest-bearing liabilities:
Interest-bearing deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest-bearing deposits 

(3)

Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total borrowed funds

Total interest-bearing liabilities

Non-interest-bearing liabilities:

Non-interest-bearing demand checking accounts 

(3)

Other non-interest-bearing liabilities

Total liabilities

Brookline Bancorp, Inc. stockholders' equity
Noncontrolling interest in subsidiary

Total liabilities and equity

Net interest income (tax-equivalent basis) / Interest-rate spread 

(4)

Less adjustment of tax-exempt income

Net interest income

Net interest margin 

(5)

Average 
Balance

2020

Interest (1)

Average 
Yield/ 
Cost

Average 
Balance

Year Ended December 31,
2019

Interest (1)
(Dollars in Thousands)

Average 
Yield/ 
Cost

Average 
Balance

2018

Interest (1)

Average 
Yield/ 
Cost

13,823 
2,862 
413 
17,098 
148,438 
41,391 
75,563 
31,392 
13,255 
310,039 
327,137 

484 
1,503 
9,519 
30,355 
6,565 
48,426 
12,842 
5,038 
348 
18,228 
66,654 

$

$

$

$

$

750,689 
61,873 
186,617 
999,179 
3,781,201 
1,140,699 
1,074,561 
810,855 
402,672 
7,209,988 
8,209,167 
(105,824)
580,226 
8,683,569 

408,374 
670,217 
1,817,085 
1,577,104 
512,803 
4,985,583 
859,389 
83,667 
90,587 
1,033,643 
6,019,226 

1,451,556 
276,712 
7,747,494 
936,075 
— 
8,683,569 

260,483 

320 
260,163 

$

1.84 % $
4.63 %
0.22 %
1.71 %
3.86 %
3.57 %
7.03 %
3.87 %
3.28 %
4.30 %
3.99 %

$

0.12 % $
0.22 %
0.52 %
1.92 %
1.28 %
0.97 %
1.47 %
6.02 %
0.38 %
1.73 %
1.11 %

$

2.88 %

3.17 %

12,483 
3,516 
1,523 
17,522 
164,082 
39,839 
74,066 
32,926 
19,835 
330,748 
348,270 

436 
2,900 
21,206 
36,326 
8,747 
69,615 
18,701 
5,206 
804 
24,711 
94,326 

$

585,360 
59,751 
71,090 
716,201 
3,492,848 
817,347 
1,012,698 
783,556 
414,730 
6,521,179 
7,237,380 
(58,871)
476,125 
7,654,634 

339,275 
608,022 
1,682,676 
1,611,389 
344,961 
4,586,323 
757,598 
83,511 
79,276 
920,385 
5,506,708 

1,070,859 
159,690 
6,737,257 
917,286 
91 
7,654,634 

253,944 

644 
253,300 

$

2.13 % $
5.88 %
2.14 %
2.45 %
4.63 %
4.81 %
7.31 %
4.20 %
4.78 %
5.07 %
4.81 %

$

0.13 % $
0.48 %
1.26 %
2.25 %
2.54 %
1.52 %
2.43 %
6.23 %
1.01 %
2.65 %
1.71 %

$

3.10 %

3.51 %

14,174 
3,973 
700 
18,847 
146,147 
37,616 
63,968 
29,773 
18,216 
295,720 
314,567 

283 
1,804 
15,369 
19,017 
5,505 
41,978 
18,650 
5,181 
385 
24,216 
66,194 

$

653,652 
67,640 
38,437 
759,729 
3,235,101 
813,815 
919,047 
746,372 
401,425 
6,115,760 
6,875,489 
(59,154)
406,746 
7,223,081 

340,194 
618,674 
1,715,057 
1,191,970 
305,503 
4,171,398 
946,017 
83,350 
46,079 
1,075,446 
5,246,844 

997,179 
96,560 
6,340,583 
873,388 
9,110 
7,223,081 

248,373 

674 
247,699 

$

2.17 %
5.88 %
1.82 %
2.48 %
4.46 %
4.56 %
6.96 %
3.99 %
4.53 %
4.84 %
4.58 %

0.08 %
0.29 %
0.90 %
1.60 %
1.80 %
1.01 %
1.94 %
6.22 %
0.83 %
2.22 %
1.26 %

3.32 %

3.61 %

_________________________________________________________________________
(1) Tax-exempt income on debt securities, equity securities and industrial revenue bonds are included in commercial real estate loans on a tax-equivalent basis.
(2) Loans on nonaccrual status are included in the average balances.
(3) Including non-interest-bearing checking accounts, the average interest rate on total deposits was 0.75%, 1.23% and 0.81% in the years ended December 31, 2020, 2019 and 2018, respectively.
(4) Interest-rate spread represents the difference between the yield on interest-earning assets and the cost of interest-bearing liabilities.
(5) Net interest margin represents net interest income (tax equivalent basis) divided by average interest-earning assets.
See "Comparison of Years Ended December 31, 2020 and December 31, 2019" and "Comparison of Years Ended December 31, 2019 and December 31, 2018" below for a discussion of average assets and liabilities, net interest income, interest-rate spread and net interest margin.

54

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Rate/Volume Analysis

The following table presents, on a tax-equivalent basis, the extent to which changes in interest rates and changes in volume of interest-earning assets and interest-bearing liabilities have affected the Company's interest income and

interest expense during the periods indicated. Information is provided in each category with respect to: (i) changes attributable to changes in volume (changes in volume multiplied by prior rate), (ii) changes attributable to changes in rate
(changes in rate multiplied by prior volume), and (iii) the net change. The changes attributable to the combined impact of volume and rate have been allocated proportionately to the changes due to volume and the changes due to rate.

Year Ended  

December 31, 2020  

Compared to Year Ended  

December 31, 2019

Increase 
(Decrease) Due To

Year Ended  

December 31, 2019  

Compared to Year Ended  

December 31, 2018

Increase 
(Decrease) Due To

Volume

Rate

Net Change

Volume

Rate

Net Change

$

$

3,195 
120 
1,044 
4,359 

12,654 
13,212 
4,406 
1,117 
(558)
30,831 
35,190 

84 
280 
1,582 
(756)
3,224 
4,414 

2,205 
10 
101 
2,316 
6,730 
(324)
28,784 

$

$

$

(1,855)
(774)
(2,154)
(4,783)

(28,298)
(11,660)
(2,909)
(2,651)
(6,022)
(51,540)
(56,323)

(36)
(1,677)
(13,269)
(5,215)
(5,406)
(25,603)

(8,064)
(178)
(557)
(8,799)
(34,402)
— 
(21,921)

$

(In Thousands)

$

1,340 
(654)
(1,110)
(424)

(15,644)
1,552 
1,497 
(1,534)
(6,580)
(20,709)
(21,133)

48 
(1,397)
(11,687)
(5,971)
(2,182)
(21,189)

(5,859)
(168)
(456)
(6,483)
(27,672)
(324)
6,863 

$

(1,437)
(457)
682 
(1,212)

12,131 
163 
6,761 
1,533 
607 
21,195 
19,983 

(1)
(32)
(293)
8,034 
775 
8,483 

(4,065)
14 
322 
(3,729)
4,754 
(30)
15,259 

$

$

$

(254)
— 
141 
(113)

5,804 
2,060 
3,337 
1,620 
1,012 
13,833 
13,720 

154 
1,128 
6,130 
9,275 
2,467 
19,154 

4,116 
11 
97 
4,224 
23,378 
— 
(9,658)

$

(1,691)
(457)
823 
(1,325)

17,935 
2,223 
10,098 
3,153 
1,619 
35,028 
33,703 

153 
1,096 
5,837 
17,309 
3,242 
27,637 

51 
25 
419 
495 
28,132 
(30)
5,601 

Interest and dividend income:

Investments:

Debt securities

Marketable and restricted equity securities
Short-term investments
Total investments

Loans and leases:
Commercial real estate loans
Commercial loans and leases
Equipment financing
Residential mortgage loans
Other consumer loans

Total loans

Total change in interest and dividend income

Interest expense:

Deposits:
NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total deposits
Borrowed funds:
Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total borrowed funds
Total change in interest expense

Change in tax-exempt income

Change in net interest income

See "Comparison of Years Ended December 31, 2020 and December 31, 2019" and "Comparison of Years Ended December 31, 2019 and December 31, 2018" below for a discussion of changes in interest income, interest-rate spread and net interest margin resulting from

changes in rates and volumes.

55

  
  
  
  
  
  
Table of Contents

Comparison of Years Ended December 31, 2020 and December 31, 2019

Net Interest Income

Net interest income increased $6.9 million to $260.2 million for the year ended December 31, 2020 from $253.3 million for the year ended December 31, 2019. The increase year over year reflects a $20.5 million decrease in interest

income on loans and leases, partially offset by a $1.5 million increase in interest income on debt securities and a $27.7 million decrease in interest expense on deposit and borrowings, which is reflective of the sustained, low interest rate
environment being offset by balance sheet growth and income from participation in the Paycheck Protection Program.

Net interest margin decreased by 34 basis points to 3.17% in 2020 from 3.51% in 2019. The Company's weighted average interest rate on loans (prior to purchase accounting adjustments) decreased to 4.30% for the year ended
December 31, 2020 from 5.07% for the year ended December 31, 2019. Interest amortization and accretion on acquired loans totaled $0.3 million and did not impact 2020 loan yields, compared to $0.6 million and 1 basis point in 2019.
The decrease in net interest margin over the period is a result of the Company's asset sensitive positioning as interest rates fell to sustained, low levels.

The yield on interest-earning assets decreased to 3.99% for the year ended December 31, 2020 from 4.81% for the year ended December 31, 2019. This decrease is the result of lower yields on loans and leases. During the year ended

December 31, 2020, the Company recorded $4.5 million in prepayment penalties and late charges, which contributed 5 basis points to yields on interest-earning assets in the year ended December 31, 2020 compared to $5.0 million, or 7
basis points, for the year ended December 31, 2019.

The overall cost of funds (including non-interest-bearing demand checking accounts) decreased 60 basis points to 1.11% for the year ended December 31, 2020 from 1.71% for the year ended December 31, 2019. Refer to "Financial

Condition - Borrowed Funds" above for more details.

Management seeks to position the balance sheet to be neutral to asset sensitive to changes in interest rates. From 2017 through 2019, short term interest rates rose while at the same time net interest income, net interest spread, and net
interest margin also increased. During 2020, interest rates declined sharply in response to the economic impact of the COVID-19 pandemic. In general, the Company's balance sheet position should respond positively in a rising interest rate
environment and when the rate curves are steepening, which should result in a positive impact to net interest income, net interest spread, and the net interest margin. A declining interest rate or flattening yield curve environment is
expected to have a negative impact on the Company's yields and net interest margin. Due to, among other things, ongoing pricing pressures in the loan and deposit portfolios, net interest income may also be negatively affected by changes
in the amount of accretion on acquired loans and leases, deposits and borrowed funds, which is included in interest income and interest expense, respectively.

Interest Income—Loans and Leases 

Interest income—loans and leases:
Commercial real estate loans
Commercial loans
Equipment financing
Residential mortgage loans
Other consumer loans

Total interest income—loans and leases

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

(Dollars in Thousands)

$

$

148,438 
41,150 
75,563 
31,392 
13,255 
309,798 

$

$

164,082  $
39,436 
74,066 
32,926 
19,835 
330,345  $

(15,644)
1,714 
1,497 
(1,534)
(6,580)
(20,547)

(9.5)%
4.3 %
2.0 %
(4.7)%
(33.2)%
(6.2)%

Interest income from loans and leases was $309.8 million for 2020, and represented a yield on total loans of 4.30%. This compares to $330.3 million of interest on loans and a yield of 5.07% for 2019. This $20.5 million decrease in

interest income from loans and leases was attributable to an increase in the origination volume of $30.8 million and a decrease of $51.5 million due to the changes in interest rates.

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Table of Contents

Interest Income—Investments 

Interest income—investments:

Debt securities
Marketable and restricted equity securities
Short-term investments

Total interest income—investments

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

$

$

13,758  $
2,848 
413 
17,019  $

(Dollars in Thousands)

12,281  $
3,477 
1,523 
17,281  $

1,477 
(629)
(1,110)
(262)

12.0 %
(18.1)%
(72.9)%

(1.5)%

Total investment income was $17.0 million for the year ended December 31, 2020 compared to $17.3 million for the year ended December 31, 2019. As of December 31, 2020, the yield on total investments was 1.71% as compared

to 2.45% as of December 31, 2019. This year over year decrease in total investment income of $0.3 million, or 1.5%, was driven by a $4.7 million decrease due to rates and a $4.4 million increase due to volume.

Interest Expense—Deposits and Borrowed Funds

Interest expense:

Deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest expense—deposits

Borrowed funds:

Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total interest expense—borrowed funds

Total interest expense

Deposits

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

(Dollars in Thousands)

$

$

$

484 
1,503 
9,519 
30,355 
6,565 
48,426 

12,842 
5,038 
348 
18,228 
66,654  $

$

436 
2,900 
21,206 
36,326 
8,747 
69,615 

18,701 
5,206 
804 
24,711 
94,326  $

48 
(1,397)
(11,687)
(5,971)
(2,182)
(21,189)

(5,859)
(168)
(456)
(6,483)
(27,672)

11.0 %
(48.2)%
(55.1)%
(16.4)%
(24.9)%
(30.4)%

(31.3)%
(3.2)%
(56.7)%
(26.2)%

(29.3)%

In 2020, interest paid on deposits decreased $21.2 million, or 30.4%, as compared to 2019. The decrease in interest expense on deposits was driven by a decrease of $25.6 million due to lower in interest rates, partially offset by an

increase of $4.4 million due to the growth in deposits. Purchase accounting amortization on acquired deposits for the year ended December 31, 2020 was $44.0 thousand, compared to $382.0 thousand for the year ended December 31,
2019. Purchase accounting amortization had no impact on the Company's net interest margin in 2020, compared to 1 basis point in 2019.

Borrowed Funds

As of December 31, 2020, the Company's borrowed funds include: $648.8 million in FHLBB advances, $83.7 million in subordinated debentures and notes, and $87.7 million in other borrowed funds. In 2020, the average balance of
FHLBB advances increased $101.8 million, or 13.4%, while the average balance of subordinated debentures and notes increased $0.2 million, or 0.2%. The average balance of other borrowed funds, which includes repurchase agreements,
increased $11.3 million, or 14.3%, for the year ended December 31, 2020.

During the year ended December 31, 2020, interest paid on borrowed funds decreased $6.5 million, or 26.2% year over year. The cost of borrowed funds decreased to 1.73% for the year ended December 31, 2020 from 2.65% for the
year ended December 31, 2019. The decrease in interest expense was driven by a decrease of $8.8 million due to borrowing rates, partially offset by an increase of $2.3 million due to volume. For the years ended December 31, 2020, there
was purchase accounting

57

Table of Contents

accretion of $54.0 thousand compared to accretion of $58.0 thousand for the year ended December 31, 2019 . Purchase accounting accretion had no impact on the Company's net interest margin.

Provision for Credit Losses

The provisions for credit losses are set forth below:

Provision for credit losses:
Commercial real estate
Commercial
Consumer
Total provision for loan and lease losses

Unfunded credit commitments

Total provision for credit losses

Total
Year Ended 
December 31,

2020

2019

(In Thousands)

$

$

41,573 
17,050 
1,003 
59,626 
2,260 
61,886 

$

$

2,098 
6,766 
697 
9,561 
22 
9,583 

For the year ended December 31, 2020, the provision for credit losses increased $52.3 million, to $61.9 million from $9.6 million for the year ended December 31, 2019. The increase in the provision for credit losses for the year

ended December 31, 2020 was primarily driven by changes in macroeconomic forecasts surrounding the COVID-19 pandemic. The latest available economic forecasts were used in the loss models which reflected the immediate and
longer term effects of the COVID-19 pandemic onto the Company's allowance for credit losses.

See management’s discussion of “Financial Condition — Allowance for Loan and Lease Losses” and Note 7, “Allowance for Credit Losses,” to the unaudited consolidated financial statements for a description of how management

determined the allowance for loan and lease losses for each portfolio and class of loans.

Non-Interest Income

The following table sets forth the components of non-interest income:

Deposit fees
Loan fees
Loan level derivative income, net
Gain on sales of investment securities, net
Gain on sales of loans and leases held-for-sale
Other

Total non-interest income

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

$

$

$

9,050 
2,048 
4,268 
1,970 
1,118 
6,190 
24,644  $

(Dollars in Thousands)
10,623  $
2,097 
8,262 
508 
1,709 
6,594 
29,793  $

(1,573)
(49)
(3,994)
1,462 
(591)
(404)
(5,149)

(14.8)%
(2.3)%
(48.3)%
287.8 %
(34.6)%
(6.1)%

(17.3)%

For the year ended December 31, 2020, non-interest income decreased $5.1 million, or 17.3%, to $24.6 million as compared to $29.8 million for the same period in 2019. The decrease was primarily driven by decreases of $4.0
million in loan level derivative income, net, $1.6 million in deposit fees, $0.6 million in gain on sales of loans and leases, and $0.4 million in other income, partially offset by an increase of $1.5 million in gain on sales of investment
securities.

Loan level derivative income decreased $4.0 million, or 48.3%, to $4.3 million for the year ended December 31, 2020 from $8.3 million for the same period in 2019, primarily driven by lower volume in loan level derivatives

transactions completed in 2020.

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Table of Contents

Deposit fees decreased $1.6 million, or 14.8%, to $9.1 million for the year ended December 31, 2020 from $10.6 million for the same period in 2019, primarily driven by lower insufficient funds fees (NSF), account service fees,

non-customer ATM income, debit card fees, as well as ATM fees.

Gain on sales of investment securities increased $1.5 million, or 287.8%, to $2.0 million for the year ended December 31, 2020 from $0.5 million for the same period in 2019, primarily driven by investment securities sold in 2020,

partially offset by a change in market value on equity securities held for trading.

Gain on sales of loans and leases held-for-sale decreased $0.6 million, or 34.6%, to $1.1 million for the year ended December 31, 2020 from $1.7 million for the same period in 2019, primarily driven by a decrease in loan sale

volume with servicing released and servicing retained.

Other income decreased $0.4 million, or 6.1%, to $6.2 million for the year ended December 31, 2020 from $6.6 million for the same period in 2019, primarily driven by lower gain on interest rate derivatives, other income, rental

income and 1031 exchange income, offset by higher foreign exchange outgoing wire income.

Non-Interest Expense

The following table sets forth the components of non-interest expense:

Compensation and employee benefits
Occupancy
Equipment and data processing
Professional services
FDIC insurance
Advertising and marketing
Amortization of identified intangible assets
Merger and acquisition expense
Other

Total non-interest expense

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

$

$

100,985  $
15,386 
17,345 
5,157 
4,229 
4,126 
1,271 
— 
12,345 
160,844  $

(Dollars in Thousands)
96,554  $
15,696 
18,652 
4,366 
1,445 
4,044 
1,663 
1,125 
13,936 
157,481 

$

4,431 
(310)
(1,307)
791 
2,784 
82 
(392)
(1,125)
(1,591)
3,363 

4.6 %
(2.0)%
(7.0)%
18.1 %
192.7 %
2.0 %
(23.6)%
(100.0)%
(11.4)%

2.1 %

For the year ended December 31, 2020, non-interest expense increased $3.4 million, or 2.1%, to $160.8 million as compared to $157.5 million for the same period in 2019. The increase was primarily driven by increases of $4.4

million in compensation and employee benefits expense and $2.8 million in FDIC insurance, partially offset by decreases of $1.6 million in other expenses, $1.3 million in equipment and data processing, and $1.1 million in merger and
acquisition expense.

The efficiency ratio increased to 56.47% for the year ended December 31, 2020 from 55.63% for the same period in 2019. The increase year over year was primarily driven by higher non- interest expense and net interest income,

offset by lower non-interest income in 2020.

Compensation and employee benefits expense increased $4.4 million, or 4.6%, to $101.0 million for the year ended December 31, 2020 from $96.6 million for the same period in 2019. The increase was primarily driven by increases

in employee headcount, annual merit increases and bonuses, and health care benefits.

FDIC insurance expense increased $2.8 million, or 192.7%, to $4.2 million for the year ended December 31, 2020 from $1.4 million for the same period in 2019. The increase was primarily driven by bank assessment fees from the

FDIC.

Other expenses decreased $1.6 million, or 11.4%, to $12.3 million for the year ended December 31, 2020 from $13.9 million for the same period in 2019. The decrease was primarily driven by lower travel and accommodation
expenses, other real estate owned (OREO) expenses, employee and business meal expenses, correspondent bank fees, entertainment expenses, and recording and filing fees, partially offset by higher customer losses and charge offs.

Equipment and data processing decreased $1.3 million, or 7.0%, to $17.3 million for the year ended December 31, 2020 from $18.7 million for the same period in 2019. The decrease was primarily driven by lower purchased

software depreciation, data communication expenses, core processing, and ATM processing, partially offset by higher software licenses and subscriptions.

59

Table of Contents

Merger and acquisition expense decreased $1.1 million, or 100.0%, to zero for the year ended December 31, 2020 from $1.1 million for the same period in 2019, due to the merger of First Ipswich Bank into Brookline Bank.

Provision for Income Taxes 

Year Ended 
December 31,

2020

2019

Dollar 
Change

Percent 
Change

Income before provision for income taxes
Provision for income taxes

Net income, before non-controlling interest in subsidiary

Effective tax rate

$

$

$

$

62,077 
14,442 
47,635 

23.3 %

(Dollars in Thousands)
116,029 
28,269 
87,760 

$

$

24.4 %

(53,952)
(13,827)
(40,125)

N/A

(46.5)%
(48.9)%

(45.7)%
(4.5)%

The Company recorded income tax expense of $14.4 million for 2020, compared to $28.3 million for 2019. This represents an effective tax rate of 23.3% and 24.4% for 2020 and 2019, respectively. The decrease in the Company's

income before provision for income taxes was primarily driven by impacts of the COVID-19 pandemic.

Comparison of Years Ended December 31, 2019 and December 31, 2018

Net Interest Income

Net interest income increased $5.6 million to $253.3 million for the year ended December 31, 2019 from $247.7 million for the year ended December 31, 2018. The increase year over year reflects a $35.1 million increase in interest

income on loans and leases, partially offset by a $1.7 million decrease in interest income on debt securities and a $28.1 million increase in interest expense on deposit and borrowings, which is reflective of the various portfolios repricing
and replacing balances into the current interest rate environment.

Net interest margin decreased by 10 basis points to 3.51% in 2019 from 3.61% in 2018. The Company's weighted average interest rate on loans (prior to purchase accounting adjustments) increased to 5.07% for the year ended

December 31, 2019 from 4.84% for the year ended December 31, 2018. Interest amortization and accretion on acquired loans totaled $0.6 million and contributed 1 basis point to 2019 loan yields, compared to $0.7 million and 1 basis
point in 2018. The decrease in net interest margin over the period is a result of most asset categories being fully repriced into the current rate environment, while deposit costs continue to rise due to market competition and shifting demand
for non- maturity versus time deposits.

The yield on interest-earning assets increased to 4.81% for the year ended December 31, 2019 from 4.58% for the year ended December 31, 2018. This increase is the result of higher yields on loans and leases. During the year ended

December 31, 2019, the Company recorded $5.0 million in prepayment penalties and late charges, which contributed 7 basis points to yields on interest-earning assets in the year ended December 31, 2019 compared to $3.5 million, or 5
basis points, for the year ended December 31, 2018.

The overall cost of funds (including non-interest-bearing demand checking accounts) increased 45 basis points to 1.71% for the year ended December 31, 2019 from 1.26% for the year ended December 31, 2018. Refer to "Financial

Condition - Borrowed Funds" above for more details.

Management seeks to position the balance sheet to be neutral to asset sensitive to changes in interest rates. In general, the Company's balance sheet position should respond positively in a rising interest rate environment and when the
rate curves are steepening which should result in a positive impact to net interest income, net interest spread, and the net interest margin. A declining interest rate or flattening yield curve environment is expected to have a negative impact
on the Company's yields and net interest margin. Additional risk factors include, but are not limited to, ongoing pricing pressures in both the loan and deposit portfolios, the ability to increase the Company's core deposits, decrease its loan-
to-deposit ratio, and decrease its reliance on FHLBB advances. Net interest income may also be negatively affected by changes in the amount of accretion on acquired loans and leases, deposits and borrowed funds, which are included in
interest income and interest expense, respectively.

60

Table of Contents

Interest Income—Loans and Leases 

Interest income—loans and leases:
Commercial real estate loans
Commercial loans
Equipment financing
Residential mortgage loans
Other consumer loans

Total interest income—loans and leases

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

(Dollars in Thousands)

$

$

164,082  $
39,436 
74,066 
32,926 
19,835 
330,345  $

146,146  $
37,166  $
63,968  $
29,773  $
18,216 
295,269  $

17,936 
2,270 
10,098 
3,153 
1,619 
35,076 

12.3 %
6.1 %
15.8 %
10.6 %
8.9 %
11.9 %

Interest income from loans and leases was $330.3 million for 2019, and represented a yield on total loans of 5.07%. This compares to $295.3 million of interest on loans and a yield of 4.84% for 2018. This $35.1 million increase in

interest income from loans and leases was attributable to an increased in the origination volume of $21.2 million and an increase of $13.8 million due to the changes in interest rates.

Interest Income—Investments

Interest income—investments:

Debt securities
Held-for-trading and restricted equity securities
Short-term investments

Total interest income—investments

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

$

$

12,281  $
3,477 
1,523 
17,281  $

(Dollars in Thousands)

13,960  $
3,964 
700 
18,624  $

(1,679)
(487)
823 
(1,343)

(12.0)%
(12.3)%
117.6 %

(7.2)%

Total investment income was $17.3 million for the year ended December 31, 2019 compared to $18.6 million for the year ended December 31, 2018. As of December 31, 2019, the yield on total investments was 2.45% as compared

to 2.48% as of December 31, 2018. This year over year decrease in total investment income of $1.3 million, or 7.2%, was driven by a $0.1 million decrease due to rates and a $1.2 million decrease due to volume.

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Table of Contents

Interest Expense—Deposits and Borrowed Funds

Interest expense:

Deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest expense—deposits

Borrowed funds:

Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total interest expense—borrowed funds

Total interest expense

Deposits

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

(Dollars in Thousands)

$

$

$

436 
2,900 
21,206 
36,326 
8,747 
69,615 

18,701 
5,206 
804 
24,711 
94,326  $

$

283 
1,804 
15,369 
19,017 
5,505 
41,978 

18,650 
5,181 
385 
24,216 
66,194  $

153 
1,096 
5,837 
17,309 
3,242 
27,637 

51 
25 
419 
495 
28,132 

54.1 %
60.8 %
38.0 %
91.0 %
58.9 %
65.8 %

0.3 %
0.5 %
108.8 %
2.0 %

42.5 %

In 2019, interest paid on deposits increased $27.6 million, or 65.8%, as compared to 2018. Interest expense increased $19.1 million due to an increase in interest rates and $8.6 million due to the growth in deposits. Purchase

accounting amortization on acquired deposits for the year ended December 31, 2019 was $0.4 million, compared to $0.8 million for the year ended December 31, 2018. Purchase accounting amortization impacted the Company's net
interest margin by 1 basis point in 2019, compared to 1 basis point in 2018.

Borrowed Funds

As of December 31, 2019, the Company's borrowed funds include: $758.5 million in FHLBB advances, $83.6 million in subordinated debentures and notes, and $60.7 million in other borrowed funds. In 2019, the average balance of
FHLBB advances decreased $188.4 million, or 19.9%, while the average balance of subordinated debentures and notes increased $0.2 million, or 0.2%. Other borrowed funds, which include repurchase agreements, increased $33.2 million,
or 72.0%, for the year ended December 31, 2019.

During the year ended December 31, 2019, interest paid on borrowed funds increased $0.5 million, or 2.0% year over year, primarily driven by an increase in other borrowed funds. The cost of borrowed funds was 2.65% for the year
ended December 31, 2019 as compared to 2.22% for the year ended December 31, 2018. This change was driven by an increase of $4.2 million due to borrowing rates, partially offset by a decrease of $3.7 million in interest expense due to
volume. For the years ended December 31, 2019 and December 31, 2018, the purchase accounting accretion on acquired borrowed funds was $0.1 million which had no impact on the Company's net interest margin.

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Table of Contents

Provision for Credit Losses

The provisions for credit losses are set forth below:

Provision for loan and lease losses:

Commercial real estate
Commercial
Consumer

Total provision for loan and  
lease losses

Unfunded credit commitments

Total provision for credit losses

Originated

Year Ended 
December 31,

2019

2018

Acquired

Year Ended 
December 31,

2019

2018
(Dollars in Thousands)

Total

Year Ended 
December 31,

2019

2018

$

$

1,798  $
6,539 
713 

9,050 
22 
9,072  $

254 
3,699 
556 

4,509 
200 
4,709 

$

$

300  $
227 
(16)

511 
— 
511  $

924  $
(451)
(231)

242 
— 
242  $

2,098 
6,766 
697 

9,561 
22 
269 

$

$

1,178 
3,248 
325 

4,751 
200 
4,951,000 

For the year ended December 31, 2019, the provision for credit losses increased $4.6 million, or 93.6%, to $9.6 million from $5.0 million for the year ended December 31, 2018. The increase in the provision for credit losses for the

year ended December 31, 2019 was primarily driven by an increase in the net charge-offs in equipment financing loans and the increases in reserves for loan growth and acquired loans, partially offset by decreased reserves required due to
changes in historical loss factors and the decrease in specific reserves. See management's discussion in "Allowances for Credit Losses-Allowance for Loan and Lease Losses" and Note 7, "Allowance for Credit Losses," to the consolidated
financial statements for a description of how management determined the allowance for loan and lease losses for each portfolio and class of loans.

The liability for unfunded credit commitments, which is included in other liabilities, was $1.9 million as of December 31, 2019 and December 31, 2018. No credit commitments were charged off against the Company's liability

account for the years ended December 31, 2019 and 2018.

Non-Interest Income

The following table sets forth the components of non-interest income:

Deposit fees
Loan fees
Loan level derivative income, net
Gain on sales of investment securities, net
Gain on sales of loans and leases held-for-sale
Other

Total non-interest income

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

$

$

10,623  $
2,097 
8,262 
508 
1,709 
6,594 
29,793  $

(Dollars in Thousands)
10,400  $
1,427 
5,440 
227 
1,883 
5,847 
25,224  $

223 
670 
2,822 
281 
(174)
747 
4,569 

2.1 %
47.0 %
51.9 %
123.8 %
(9.2)%
12.8 %

18.1 %

For the year ended December 31, 2019, non-interest income increased $4.6 million, or 18.1%, to $29.8 million as compared to $25.2 million the same period in 2018. This increase is primarily due to a $2.8 million increase in loan

level derivative income, a $0.7 million increase in other income, and a $0.7 million increase in loan fees.

Other income increased $0.7 million, or 12.8%, to $6.6 million for the year ended December 31, 2019 from $5.8 million for the same period of 2018, primarily driven by higher derivative activity.

Loan fees increased $0.7 million, or 47.0%, to $2.1 million for the year ended December 31, 2019 from $1.4 million for the same period of 2018, primarily driven by miscellaneous fees.

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Table of Contents

Non-Interest Expense

The following table sets forth the components of non-interest expense:

Compensation and employee benefits
Occupancy
Equipment and data processing
Professional services
FDIC insurance
Advertising and marketing
Amortization of identified intangible assets
Merger and acquisition expense
Other

Total non-interest expense

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

$

$

96,554  $
15,696 
18,652 
4,366 
1,445 
4,044 
1,663 
1,125 
13,936 
157,481  $

(Dollars in Thousands)
91,535  $
14,991 
18,213 
4,404 
2,722 
4,016 
2,080 
3,787 
13,484 
155,232 

$

5,019 
705 
439 
(38)
(1,277)
28 
(417)
(2,662)
452 
2,249 

5.5 %
4.7 %
2.4 %
(0.9)%
(46.9)%
0.7 %
(20.0)%
(70.3)%
3.4 %

1.4 %

For the year ended December 31, 2019, non-interest expense increased $2.2 million, or 1.4%, to $157.5 million as compared to $155.2 million for the same period in 2018. This increase is primarily due to a $5.0 million increase in

compensation and employee benefits expense, partially offset by a decrease of $2.7 million in merger and acquisition expense, and a $1.3 million decrease in FDIC insurance expense.

The efficiency ratio decreased to 55.63% for the year ended December 31, 2019 from 56.88% for the same period in 2018. The decrease year over year was primarily driven by higher net interest income and non-interest income in

2019.

Compensation and employee benefits expense increased $5.0 million, or 5.5%, to $96.6 million for the year ended December 31, 2019 from $91.5 million for the same period in 2018. The increase was primarily driven by an

increase in employee headcount and annual salary increases.

Merger and acquisition expense decreased $2.7 million, or 70.3%, to $1.1 million for the year ended December 31, 2019 from $3.8 million for the same period in 2018, due to the closing of the First Commons Bank acquisition in

2018.

FDIC insurance expense decreased $1.3 million, or 46.9%, to $1.4 million for the year ended December 31, 2019 from $2.7 million for the same period in 2018. The decrease was primarily driven by bank assessment credits from

the FDIC.

Provision for Income Taxes

Year Ended 
December 31,

2019

2018

Dollar 
Change

Percent 
Change

Income before provision for income taxes
Provision for income taxes

Net income, before non-controlling interest in subsidiary

Effective tax rate

$

$

116,029 
28,269 
87,760 

$

$

24.4 %

(Dollars in Thousands)
112,740 
26,189 
86,551 

$

$

23.2 %

3,289 
2,080 
1,209 

N/A

2.9  %
7.9  %

1.4  %
5.2  %

The Company recorded income tax expense of $28.3 million for 2019, compared to $26.2 million for 2018. This represents an effective tax rate of 24.4% and 23.2% for 2019 and 2018, respectively. The increase in the Company's

effective tax rate from 2018 was primarily driven by a $0.7 million adjustment as a result of the Tax Act. Due to the Tax Act, the Company took a one-time adjustment in 2018 that lowered the effective tax rate, which was not repeated in
2019. In addition, Brookline Bank completed the purchase of the remaining interest in Eastern Funding in 2019. Tax savings of approximately $0.9 million were recognized for this portion of Eastern Funding in 2018, but not in 2019.

The Tax Act represents the most comprehensive reform to the U.S. tax code in over thirty years. The majority of the provisions of the Tax Act took effect on January 1, 2018. The Tax Act lowered the Company’s federal tax rate
from 35% in 2017 to 21% in 2018 and 2019. The Tax Act also contained other provisions that may affect the Company currently or in future years. Among these are changes to the deductibility of meals and entertainment, the deductibility
of executive compensation,

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Table of Contents

accelerated expensing of depreciable property for assets placed in service after September 27, 2017 and before 2023, limited the deductibility of net interest expense, eliminated the corporate alternative minimum tax, limited net operating
loss carryforwards to 80% of taxable income and a parking disallowance related to employee parking.

Liquidity and Capital Resources

Liquidity

Liquidity is defined as the ability to meet current and future financial obligations of a short-term nature. The Company further defines liquidity as the ability to respond to the needs of depositors and borrowers, as well as to earnings

enhancement opportunities, in a changing marketplace. Liquidity management is monitored by an Asset/Liability Committee ("ALCO"), consisting of members of management, which is responsible for establishing and monitoring
liquidity targets as well as strategies and tactics to meet these targets.

The primary source of funds for the payment of dividends and expenses by the Company are dividends paid to it by the Banks and Brookline Securities Corp. The primary sources of liquidity for the Banks consist of deposit inflows,

loan repayments, borrowed funds, and maturing investment securities.

Deposits, which are considered the most stable source of liquidity, totaled $6.9 billion as of December 31, 2020 and represented 89.4% of total funding (the sum of total deposits and total borrowings), compared to deposits of $5.8

billion, or 86.6% of total funding, as of December 31, 2019. Core deposits, which consist of demand checking, NOW, savings and money market accounts, totaled $4.8 billion as of December 31, 2020 and represented 69.8% of total
deposits, compared to core deposits of $3.8 billion, or 65.3% of total deposits, as of December 31, 2019. Additionally, the Company had $693.9 million of brokered deposits as of December 31, 2020, which represented 10.0% of total
deposits, compared to $349.9 million or 6.0% of total deposits, as of December 31, 2019. The Company offers attractive interest rates based on market conditions to increase deposits balances, while managing cost of funds.

Borrowings are used to diversify the Company's funding mix and to support asset growth. When profitable lending and investment opportunities exist, access to borrowings provides a means to grow the balance sheet. Borrowings

totaled $820.2 million as of December 31, 2020, representing 10.6% of total funding, compared to $902.7 million, or 13.4% of total funding, as of December 31, 2019.

As members of the FHLBB, the Banks have access to both short- and long-term borrowings. As of December 31, 2020, the Company's total borrowing limit from the FHLBB for advances and repurchase agreements was $1.9 billion

as compared to $2.1 billion as of December 31, 2019, based on the level of qualifying collateral available for these borrowings.

As of December 31, 2020, the Banks also have access to funding through certain uncommitted lines of credit of $746.0 million. The Company had a $12.0 million committed line of credit for contingent liquidity as of December 31,

2020.

The Company has access to the Federal Reserve Bank "discount window" to supplement its liquidity. The Company has $606.6 million of borrowing capacity at the Federal Reserve Bank as of December 31, 2020. As of

December 31, 2020, the Company did not have any borrowings with the Federal Reserve Bank outstanding.

Additionally, the Banks have access to liquidity through repurchase agreements and brokered deposits.

In general, the Company seeks to maintain a high degree of liquidity and targets cash, cash equivalents and investment securities available-for-sale balances of between 10% and 15% of total assets. As of December 31, 2020, cash,

cash equivalents and investment securities available-for-sale totaled $1.2 billion, or 13.2% of total assets. This compares to $576.8 million, or 7.3% of total assets as of December 31, 2019.

While management believes that the Company has adequate liquidity to meet its commitments, and to fund the Banks' lending and investment activities, the availabilities of these funding sources are subject to broad economic

conditions and could be restricted in the future. Such restrictions would impact the Company's immediate liquidity and/or additional liquidity needs.

Capital Resources

As of December 31, 2020 and 2019, the Company and the Banks were under the primary regulation of and required to comply with the capital requirements of the FRB. At those dates, the Company and the Banks exceeded all
regulatory capital requirements and the banks were considered "well-capitalized." See details in "Supervision and Regulation" in Item 1. Refer to Note 19, "Regulatory Capital Requirements", for the Company's and the Banks' actual and
required capital amounts and ratios.

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Table of Contents

Off-Balance-Sheet Arrangements

The Company is party to off-balance sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial

instruments include loan commitments, standby and commercial letters of credit and loan level derivatives. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees
are incurred or received. The effect of such activity on the Company's financial condition and results of operations, such as recorded liability for unfunded credit commitment, is immaterial. See Note 13, "Commitments and
Contingencies," to the consolidated financial statements for a description of off-balance-sheet financial instruments.

Contractual Obligations

A summary of contractual obligations by the expected payment period for the date indicated follows.

At December 31, 2020:
Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds
(1)
Loan commitments 
Occupancy lease commitments 
Service provider contracts 
Postretirement benefit obligations 

(3)

(2)

(4)

Less Than 
One Year

One to 
Three Years

Payment Due by Period
More than Three Years to 
Five Years
(In Thousands)

Over Five 
Years

Total

$

$

623,611 
— 
87,652 
1,693,999 
6,077 
28,300 
515 
2,440,154 

$

$

8,805  $
— 
— 
— 
10,066 
86,077 
1,778 
106,726 

$

5,342  $
— 
— 
— 
5,557 
50,323 
1,721 
62,943  $

11,091 
83,746 
— 
— 
5,064 
25,735 
14,925 
140,561 

$

$

648,849 
83,746 
87,652 
1,693,999 
26,764 
190,435 
18,939 
2,750,384 

_______________________________________________________________________________
(1) These amounts represent commitments made by the Company to extend credit to borrowers as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses. Since some of the
commitments are expected to expire without being drawn upon, the total commitment amount does not necessarily represent future cash requirements.

(2) The Company leases certain office space under various noncancellable operating leases. These leases have original terms ranging from 3 years to over 25 years. Certain leases contain renewal options and escalation clauses for real estate taxes and other expenditures which can
increase rental expenses based principally on the consumer price index and fair market rental value provisions.

(3) Payments to service providers under most of the existing contracts are based on the volume of accounts served or transactions processed. Some contracts also call for higher required payments when there are increases in the Consumer Price Index. The expected payments shown
in this table are based on an estimate of the number of accounts to be served or transactions to be processed, but do not include any projection of the effect of changes in the Consumer Price Index.

(4) These amounts represent commitments made by the Company for a Supplemental Executive Retirement Plan as part of the acquisition of BankRI and a Postretirement Benefits Plan, at Brookline Bank, that provides part of the annual expense of health insurance premiums for
retired employees and their dependents.

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Table of Contents

Item 7A.    Quantitative and Qualitative Disclosures about Market Risk

Market Risk

Market risk is the risk that the market value or estimated fair value of the Company's assets, liabilities, and derivative financial instruments will decline as a result of changes in interest rates or financial market volatility, or that the

Company's net income will be significantly reduced by interest-rate changes.

Interest-Rate Risk

The principal market risk facing the Company is interest-rate risk, which can occur in a variety of forms, including repricing risk, yield-curve risk, basis risk, and prepayment risk. Repricing risk occurs when the change in the

average yield of either interest-earning assets or interest-bearing liabilities is more sensitive than the other to changes in market interest rates. Such a change in sensitivity could reflect a number of possible mismatches in the repricing
opportunities of the Company's assets and liabilities. Yield-curve risk reflects the possibility that changes in the shape of the yield curve could have different effects on the Company's assets and liabilities. Basis risk occurs when different
parts of the balance sheet are subject to varying base rates reflecting the possibility that the spread from those base rates will deviate. Prepayment risk is associated with financial instruments with an option to prepay before the stated
maturity, often a disadvantage to person selling the option; this risk is most often associated with the prepayment of loans, callable investments, and callable borrowings.

Asset/Liability Management

Market risk and interest-rate risk management is governed by the Company's Asset/Liability Committee ("ALCO"). The ALCO establishes exposure limits that define the Company's tolerance for interest-rate risk. The ALCO and

the Company's Treasury Group measure and manage the composition of the balance sheet over a range of possible changes in interest rates while remaining responsive to market demand for loan and deposit products. The ALCO monitors
current exposures versus limits and reports those results to the Board of Directors. The policy limits and guidelines serve as benchmarks for measuring interest-rate risk and for providing a framework for evaluation and interest-rate risk-
management decision-making. The Company measures its interest-rate risk by using an asset/liability simulation model. The model considers several factors to determine the Company's potential exposure to interest-rate risk, including
measurement of repricing gaps, duration, convexity, value-at-risk, market value of portfolio equity under assumed changes in the level of interest rates, the shape of yield curves, and general market volatility.

Management controls the Company's interest-rate exposure using several strategies, which include adjusting the maturities of securities in the Company's investment portfolio, limiting or expanding the terms of loans originated,

limiting fixed-rate deposits with terms of more than five years, and adjusting maturities of FHLBB advances. The Company limits this risk by restricting the types of MBSs it invests into those with limited average life changes under
certain interest-rate-shock scenarios, or securities with embedded prepayment penalties. The Company also places limits on holdings of fixed-rate mortgage loans with maturities greater than five years. The Company enters into interest
rate swaps as part of its interest rate risk management strategy. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable rate amounts from a counterparty in exchange for the Company making fixed
payments.

Measuring Interest-Rate Risk

As noted above, interest-rate risk can be measured by analyzing the extent to which the repricing of assets and liabilities are mismatched to create an interest-rate sensitivity gap. An asset or liability is said to be interest-rate sensitive

within a specific period if it will mature or reprice within that period. The interest-rate sensitivity gap is defined as the difference between the amount of interest-earning assets maturing or repricing within a specific time period and the
amount of interest-bearing liabilities maturing or repricing within that same time period. A gap is considered positive when the amount of interest-rate-sensitive assets exceeds the amount of interest-rate-sensitive liabilities. A gap is
considered negative when the amount of interest-rate-sensitive liabilities exceeds the amount of interest-rate-sensitive assets. During a period of falling interest rates, therefore, a positive gap would tend to adversely affect net interest
income. Conversely, during a period of rising interest rates, a positive gap position would tend to result in an increase in net interest income.

The Company's interest-rate risk position is measured using both income simulation and interest-rate sensitivity "gap" analysis. Income simulation is the primary tool for measuring the interest-rate risk inherent in the Company's
balance sheet at a given point in time by showing the effect on net interest income, over a twelve-month period, of a variety of interest-rate shocks. These simulations take into account repricing, maturity, and prepayment characteristics of
individual products. The ALCO reviews simulation results to determine whether exposure resulting from changes in market interest rates remains within established tolerance levels over a twelve-month horizon, and develops appropriate
strategies to manage this exposure. The Company's interest-rate risk analysis remains modestly asset-sensitive as of December 31, 2020.

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Table of Contents

The assumptions used in the Company’s interest-rate sensitivity simulation discussed above are inherently uncertain and, as a result, the simulations cannot precisely measure net interest income or precisely predict the impact of

changes in interest rates.

As of December 31, 2020, net interest income simulation indicated that the Company's exposure to changing interest rates was within tolerance. The ALCO reviews the methodology utilized for calculating interest-rate risk exposure

and may periodically adopt modifications to this methodology. The following table presents the estimated impact of interest-rate changes on the Company's estimated net interest income over the twelve-month periods indicated:

Gradual Change in Interest Rate Levels

Up 300 basis points
Up 200 basis points
Up 100 basis points
Down 100 basis points

Estimated Exposure to Net Interest Income 
over Twelve-Month Horizon Beginning

December 31, 2020

December 31, 2019

Dollar 
Change

$

19,249 
10,698 
5,193 
(5,999)

Percent 
Change

Dollar 
Change

(Dollars in Thousands)

Percent 
Change

7.1 % $
3.9 %
1.9 %
(2.2)%

29,795 
12,478 
6,265 
(11,100)

11.5 %
4.8 %
2.4 %
(4.3)%

The estimated impact of a 300 basis points increase in market interest rates on the Company's estimated net interest income over a twelve-month horizon was a positive 7.1% as of December 31, 2020, compared to a positive 11.5% as

of December 31, 2019. The decrease in net interest income asset sensitivity was due a shift from term deposits to MMDA deposits as well as a shortening of the borrowing portfolio and brokered deposits.

Economic Value of Equity ("EVE") at Risk Simulation is conducted in tandem with net interest income simulations to ascertain a longer term view of the Company’s interest-rate risk position by capturing longer-term repricing risk

and options risk embedded in the balance sheet. It measures the sensitivity of the economic value of equity to changes in interest rates. The EVE at Risk Simulation values only the current balance sheet and does not incorporate growth
assumptions. As with the net interest income simulation, this simulation captures product characteristics such as loan resets, repricing terms, maturity dates, and rate caps and floors. Key assumptions include loan prepayment speeds,
deposit pricing elasticity, and non-maturity deposit attrition rates. These assumptions can have significant impacts on valuation results as the assumptions remain in effect for the entire life of each asset and liability. The Company conducts
non-maturity deposit behavior studies on a periodic basis to support deposit assumptions used in the valuation process. All key assumptions are subject to a periodic review.

EVE at Risk is calculated by estimating the net present value of all future cash flows from existing assets and liabilities using current interest rates as well as parallel shocks to the current interest-rate environment. The following table
sets forth the estimated percentage change in the Company’s EVE at Risk, assuming various shifts in interest rates. Given the interest rate environment as of December 31, 2020, simulations for interest rate declines of more than 100 basis
points were not deemed to be meaningful.

Parallel Shock in Interest Rate Levels
Up 300 basis points
Up 200 basis points
Up 100 basis points
Down 100 basis points

Estimated Percent Change in Economic Value of Equity

At December 31, 2020

At December 31, 2019

11.2  %
8.3  %
5.4  %
(13.6) %

6.0  %
5.1  %
3.3  %
(7.2) %

The Company's EVE asset sensitivity increased from December 31, 2019 to December 31, 2020 as short term cash and securities balance increased funded by less interest rate sensitive non maturity deposits.

The Company also uses interest-rate sensitivity "gap" analysis to provide a more general overview of its interest-rate risk profile. The interest-rate sensitivity gap is defined as the difference between interest-earning assets and interest-

bearing liabilities maturing or repricing within a given time period. The table below shows the Company's interest-rate sensitivity gap position as of December 31, 2020.

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Table of Contents

Interest-earning assets 
Short-term investments
Weighted average rate

(1)

:

Investment securities 

(1) (3)

Weighted average rate

Commercial real estate loans 

(1)

Weighted average rate

Commercial loans and leases 

(1)

Weighted average rate

Consumer loans 

(1)

Weighted average rate
Total interest-earning assets
Weighted average rate

Interest-bearing liabilities 
NOW accounts

(1)

:

Weighted average rate

Savings accounts

Weighted average rate

Money market savings accounts

Weighted average rate
(1)

Certificates of deposit 

Weighted average rate

Brokered deposits

Weighted average rate

Borrowed funds 

(1)

Weighted average rate

Total interest-bearing liabilities

Weighted average rate

Interest sensitivity gap 

(2)

Cumulative interest sensitivity gap
Cumulative interest sensitivity gap as a percentage of total assets
Cumulative interest sensitivity gap as a percentage of total interest-earning assets

One Year 
or Less

More than 
One Year to 
Two Years

More than 
Two Years 
to Three 
Years

More than 
Three Years 
to Five Years

(Dollars in Thousands)

More than 
Five Years

Total

$

398,848 

$

0.09 %

167,704 

2.58 %

2,103,116 

2.93 %

912,092 

5.39 %

663,047 

3.33 %

4,244,807 

3.24 %

$

— 
— %
— 
— %

2,018,977 

0.31 %

1,138,804 

1.39 %

694,007 

0.43 %

723,027 

0.98 %

4,574,815 

0.70 %

(330,008)

(330,008)

$

$

(3.69)%
(3.92)%

$

$

$

$

— 
— %

$

— 
— %

$

— 
— %

$

— 
— %

162,898 

2.63 %

505,143 

4.42 %

835,142 

3.37 %

152,919 

3.95 %

1,656,102 

3.67 %

$

— 
— %
— 
— %
— 
— %

140,481 

1.19 %
— 
— %

6,641 
4.61 %

147,122 

— %

1,508,980 

1,178,972 

$

$

13.18 %
14.01 %

116,370 

2.79 %

417,010 

4.56 %

241,968 

6.56 %

114,777 

3.97 %

890,125 

4.80 %

$

— 
— %
— 
— %
— 
— %

61,302 

2.44 %
— 
— %

5,926 
1.71 %

67,228 

2.38 %

822,897 

2,001,869 

$

$

22.39 %
23.79 %

116,363 

2.61 %

541,151 

4.20 %

230,137 

5.87 %

142,760 

3.92 %

1,030,411 

4.36 %

$

— 
— %
— 
— %
— 
— %

49,411 

2.13 %
(98)
— %

4,659 
1.86 %

53,972 

2.12 %

976,439 

2,978,308 

$

$

33.31 %
35.40 %

182,486 

2.67 %

257,406 

3.56 %

55,562 

4.81 %

97,326 

3.58 %

592,780 

3.40 %

513,948 

$

0.09 %

701,659 

0.13 %
— 
— %
— 
— %
— 
— %

79,994 

1.47 %

1,295,601 

0.20 %

(702,821)

$

2,275,487 

25.45 %
27.04 %

398,848 

0.09 %

745,821 

2.65 %

3,823,826 

3.53 %

2,274,901 

4.81 %

1,170,829 

3.56 %

8,414,225 

3.64 %

513,948 

0.09 %

701,659 

0.13 %

2,018,977 

0.31 %

1,389,998 

1.44 %

693,909 

0.43 %

820,247 

1.04 %

6,138,738 

0.64 %

2,275,487 

_______________________________________________________________________________

(1) Interest-earning assets and interest-bearing liabilities are included in the period in which the balances are expected to be redeployed and/or repriced as a result of anticipated prepayments, scheduled rate adjustments and contractual maturities.
(2) Interest sensitivity gap represents the difference between interest-earning assets and interest-bearing liabilities.
(3) Investment securities include all debt, equity and restricted equity securities and unrealized gains and losses on investment securities.

69

 
 
 
 
 
 
 
 
 
Table of Contents

As of December 31, 2020, interest-earning assets maturing or repricing within one year amounted to $4.2 billion and interest-bearing liabilities maturing or repricing within one year amounted to $4.6 billion, resulting in a

cumulative one-year negative gap position of $330.0 million or (3.9)% of total interest-earning assets. As of December 31, 2019, the Company had a cumulative one-year negative gap position of $29.0 million, or (0.39)% of total interest-
earning assets. The change in the cumulative one-year gap position from December 31, 2019 was due to shortening of deposits and funding profile offset by an increase in short term investments.

Interest rates paid on NOW accounts, savings accounts and money market accounts are subject to change at any time and such deposits are available for immediate withdrawal. A review of rates paid on these deposit categories over

the last several years indicated that the amount and timing of rate changes did not coincide with the amount and timing of rate changes on other deposits when the FRB adjusted its benchmark federal funds rate.

Management views NOW and savings accounts to be less sensitive to interest rates than money market accounts and these accounts are therefore characterized as stable long-term funding sensitive beyond five years. Management

views money market accounts to be more volatile deposits and these accounts are therefore characterized as sensitive to changes in interest rates within the first year.

Item 8.    Financial Statements and Supplementary Data

The following financial statements and supplementary data required by this item are presented on the following pages which appear elsewhere herein:

Reports of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2020 and 2019
Consolidated Statements of Income for the years ended December 31, 2020, 2019, and 2018
Consolidated Statements of Comprehensive Income for the years ended December 31, 2020, 2019, and 2018
Consolidated Statements of Changes in Stockholders' Equity for the years ended December 31, 2020, 2019, and 2018
Consolidated Statements of Cash Flows for the years ended December 31, 2020, 2019, and 2018
Notes to Consolidated Financial Statements

70

Pages

F-3
F-6
F-7
F-8
F-9 - F-9
F-12 - F-11
F-13 - F-96

 
Table of Contents

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

None.

Item 9A.    Controls and Procedures

Under the supervision and with the participation of the Company's management, including the Company's Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer), the Company

has evaluated the effectiveness of its disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based upon that evaluation, the Chief
Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, the Company's disclosure controls and procedures were effective to ensure that information required to be disclosed in the
reports that the Company files or submits under the Exchange Act is (i) recorded, processed, summarized and reported, within the time periods specified in the SEC's rules and forms and (ii) accumulated and communicated to the
Company's management, including its Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There has been no change in the Company's internal control over financial reporting identified in connection with the quarterly evaluation that occurred during the Company's last fiscal quarter that has materially and detrimentally

affected, or is reasonably likely to materially and detrimentally affect, the Company's internal control over financial reporting.

The Company's management is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in Exchange Act Rule 13a-15(f). The Company's internal control system was
designed to provide reasonable assurance to its management and the Board of Directors regarding the preparation and fair presentation of published financial statements. All internal control systems, no matter how well designed have
inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. The Company's management assessed the effectiveness
of its internal control over financial reporting as of the end of the period covered by this report. In addition, the effectiveness of the Company's internal control over financial reporting as of the end of the period covered by this report has
been audited by KPMG LLP, an independent registered public accounting firm as stated in its report which is included in Item 8 of this Annual Report on Form 10-K.

Management's Report on Internal Control Over Financial Reporting as of December 31, 2020 appears on page F-1 herein and the related Report of Independent Registered Public Accounting Firm thereon appears on page F-2 herein.

Item 9B.    Other Information

None.

Item 10.    Directors, Executive Officers and Corporate Governance

PART III

The information required by this item is incorporated herein by reference to the Company's Proxy Statement to be filed in connection with the Annual Meeting of Stockholders ("Proxy Statement").

Item 11.    Executive Compensation

The information required by this item is incorporated herein by reference to Proxy Statement.

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

The information required by this item is incorporated herein by reference to Proxy Statement.

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

The information required by this item is incorporated herein by reference to Proxy Statement.

Item 14.    Principal Accounting Fees and Services

The information required by this item is incorporated herein by reference to Proxy Statement.

71

Table of Contents

Item 15.    Exhibits, Financial Statement Schedules

(a)

Financial Statements

All financial statements are included in Item 8 of Part II of this Annual Report on Form 10-K.

(2)

Financial Statement Schedules

PART IV

All financial statement schedules have been omitted because they are not required, not applicable or are included in the consolidated financial statements or related notes.

(3)

Exhibits

The exhibits listed in paragraph (b) below are filed herewith or incorporated herein by reference to other filings.

(b)

Exhibits

EXHIBIT INDEX

72

Table of Contents

Exhibit

3.1  Certificate of Incorporation of Brookline Bancorp, Inc.
3.2  Amended and Restated Bylaws of Brookline Bancorp, Inc. (incorporated by reference to Exhibit 3.02 of the Company's Current Report on Form 8-K filed on January 10, 2013)

4 
Form of Common Stock Certificate of the Company (incorporated by reference to Exhibit 4 of the Registration Statement on Form S-1 filed by the Company on April 10, 2002 (Registration No. 333-85980))
4.1 Subordinated Indenture, dated as of September 16, 2014, between Brookline Bancorp, Inc. and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 4.1 of the Company’s Current

Report on Form 8-K filed on September 17, 2014)

4.2 First Supplemental Indenture, dated as of September 16, 2014, between Brookline Bancorp, Inc. and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 4.2 of the Company’s

Current Report on Form 8-K filed on September 17, 2014)

4.3 Form of Global Note to represent the 6.000% Fixed-to-Floating Rate Subordinated Notes due September 15, 2029 (contained in the First Supplemental Indenture included as Exhibit 4.2)
4.4 Description of Registrant’s Securities

Description

10.1+ Brookline Bancorp, Inc. Deferred Compensation Plan effective January 1, 2011 (incorporated by reference to Exhibit 99.1 of the Company's Current Report on Form 8-K filed on September 16, 2010)
10.2+ Brookline Bancorp, Inc. 2003 Stock Option Plan
10.4+ Brookline Bancorp, Inc. 2011 Restricted Stock Plan
10.5+ Brookline Bancorp, Inc. 2014 Equity Incentive Plan (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on May 9, 2014)

10.5.1+ Form of Restricted Stock Award Agreement under the Brookline Bancorp, Inc. 2014 Equity Incentive Plan

10.6+ Employment Agreement, dated as of April 11, 2011, by and among Brookline Bancorp, Inc., Brookline Bank and Paul A. Perrault (incorporated by reference to Exhibit 10.10 of the Company's Current Report

on Form 8-K filed on April 15, 2011)

10.6.1 Amendment to the Employment Agreement, dated July 25, 2018, by and among the Brookline Bancorp, Inc., Brookline Bank and Paul Perrault.
10.8+ Employment Letter Agreement, dated as of April 19, 2011, by and between Brookline Bancorp, Inc. and Mark J. Meiklejohn (incorporated by reference to Exhibit 10.3 of Pre-effective Amendment No. 2 of

the Registration Statement on Form S-4 filed by the Company on July 25, 2011 (Registration Number 333-174731))

10.9+ Form of Amended Change in Control Agreement (incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q filed May 9, 2014)

Subsidiaries of the Registrant (incorporated by reference in Part I, Item 1. "Business—General" of this Annual Report on Form 10-K)

21 
23* Consent of Independent Registered Public Accounting Firm

31.1* Rule 13a-14(a)/15d-14(a) Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2* Rule 13a-14(a)/15d-14(a) Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1** Rule 13a-14(b) Certifications of the Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2** Rule 13a-14(b) Certifications of the Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH XBRL Taxonomy Extension Schema Document
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF XBRL Taxonomy Extension Definition Linkbase Document
101.LAB XBRL Taxonomy Extension Label Linkbase Document
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document

104 Cover Page Interactive Data File (formatted in Inline XBRL and included in Exhibit 101)

_______________________________________________________________________________
* Filed herewith

** Furnished herewith

73

Table of Contents

+ Management contract or compensatory plan or agreement

(c)

Other Required Financial Statements and Schedules

Not applicable.

Item 16.    Form 10-K Summary

Not applicable.

74

Table of Contents

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 26, 2021

BROOKLINE BANCORP, INC.
By:

/s/ PAUL A. PERRAULT
Paul A. Perrault
 President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By:

By:

By:

By:

By:

By:

By:

By:

/s/ PAUL A. PERRAULT
Paul A. Perrault,
 President and Chief Executive Officer
(Principal Executive Officer)
Date: February 26, 2021

/s/ MARGARET BOLES FITZGERALD
Margaret Boles Fitzgerald,
 Director
Date: February 26, 2021

/s/ JOANNE CHANG
Joanne Chang,
 Director
Date: February 26, 2021

/s/ DAVID C. CHAPIN
David C. Chapin,
 Director
Date: February 26, 2021

/s/ JOHN J. DOYLE, JR.
John J. Doyle, Jr.,
 Director
Date: February 26, 2021

/s/ JOHN A. HACKETT
John A. Hackett,
 Director
Date: February 26, 2021

/s/ JOHN L. HALL, II
John L. Hall, II,
 Director
Date: February 26, 2021

/s/ THOMAS J. HOLLISTER
Thomas J. Hollister,
 Director
Date: February 26, 2021

By:

By:

By:

By:

By:

By:

By:

75

/s/ CARL M. CARLSON
Carl M. Carlson,
 Chief Financial Officer
(Principal Financial Officer)
Date: February 26, 2021

/s/ BOGDAN NOWAK
Bogdan Nowak, 
Director
Date: February 26, 2021

/s/ CHARLES H. PECK
Charles H. Peck,
 Director
Date: February 26, 2021

/s/ JOHN M. PEREIRA
John M. Pereira,
 Director
Date: February 26, 2021

/s/ MERRILL W. SHERMAN
Merrill W. Sherman,
 Director
Date: February 26, 2021

/s/ JOSEPH J. SLOTNIK
Joseph J. Slotnik,
 Chairman and Director
Date: February 26, 2021

/s/ PETER O. WILDE
Peter O. Wilde,
 Director
Date: February 26, 2021

Table of Contents

MANAGEMENT'S REPORT ON INTERNAL CONTROL
OVER FINANCIAL REPORTING

The management of Brookline Bancorp, Inc. is responsible for establishing and maintaining adequate internal control over financial reporting. Brookline Bancorp Inc.'s internal control system was designed to provide reasonable assurance
to the Company's management and Board of Directors regarding the preparation and fair presentation of published financial statements.

All internal control systems, no matter how well-designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and
presentation.

Brookline Bancorp, Inc.'s management assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2020. In making this assessment, it used the criteria set forth by the Committee of Sponsoring
Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework (2013). Based on our assessment, we believe that, as of December 31, 2020, the Company's internal control over financial reporting is
effective based on those criteria.

Brookline Bancorp, Inc.'s independent registered public accounting firm has issued an audit report on the effectiveness of the Company's internal control over financial reporting. This report appears on page F-2.

/s/ PAUL A. PERRAULT
Paul A. Perrault
Chief Executive Officer 
(Principal Executive Officer)

/s/ CARL M. CARLSON
Carl M. Carlson
Chief Financial Officer 
(Principal Financial Officer)

F-1

Table of Contents

To the Stockholders and Board of Directors
Brookline Bancorp, Inc.:

Opinion on Internal Control Over Financial Reporting

Report of Independent Registered Public Accounting Firm

We have audited Brookline Bancorp, Inc. and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control – Integrated Framework (2013) issued by the
Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on criteria
established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

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, 2020 and 2019, the related
consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three ‑year period ended December 31, 2020, and the related notes (collectively, the consolidated
financial statements), and our report dated February 26, 2021 expressed an unqualified opinion on those consolidated financial statements.

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 of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and
evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included 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/ KPMG LLP

Boston, Massachusetts
February 26, 2021

F-2

Table of Contents

To the Stockholders and Board of Directors
Brookline Bancorp, Inc.:

Opinion on the Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm

We have audited the accompanying consolidated balance sheets of Brookline Bancorp, Inc. and subsidiaries (the Company) as of December 31, 2020 and 2019, the related consolidated statements of income, comprehensive income,
changes in stockholders’ equity, and cash flows for each of the years in the three‑year period ended December 31, 2020, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial
statements present fairly, in all material respects, the financial position of the Company as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the years in the three‑year period ended
December 31, 2020, 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, 2020, based on criteria
established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 26, 2021 expressed an unqualified opinion on the
effectiveness of the Company’s internal control over financial reporting.

Change in Accounting Principle

As discussed in Note 1 to the financial statements, the Company has changed its method of accounting for the recognition and measurement of credit losses as of January 1, 2020 due to the adoption of ASU No. 2016-13, Financial
Instruments— Credit Losses (ASC Topic 326) (commonly known as CECL).

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated 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 consolidated 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 consolidated 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 consolidated 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 consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to
accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our
opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it
relates.

Assessment of the collective allowance for credit losses

As discussed in Note 1 to the consolidated financial statements, the Company adopted ASU No. 2016-13, Financial Instruments— Credit Losses (ASC Topic 326) (commonly known as CECL) as of January 1, 2020. As discussed in Note
1 and Note 7 to the consolidated financial statements, the Company’s allowance for credit losses related to loans and leases and unfunded commitments evaluated on a collective basis was $74.8 million as of January 1, 2020 (the January
1, 2020 collective ACL), which consists of an allowance for loan and lease losses evaluated on a collective basis of $64.0 million and a reserve for unfunded commitments, evaluated on a collective basis of $10.8 million. The Company’s
allowance for credit losses related to loans and leases and unfunded commitments collectively evaluated for impairment was $125.2 million as of December 31, 2020 (the December 31, 2020 collective ACL), which consists of an
allowance for loan and lease losses, evaluated on a

F-3

Table of Contents

collective basis of $112.1 million and a reserve for unfunded commitments, evaluated on a collective basis of $13.1 million. The collective ACL is calculated using models developed by a third party, which include Commercial real estate
lifetime, Commercial and industrial lifetime, and Retail lifetime models (collectively, the lifetime loss rate models). Lifetime loss rate models calculate the expected losses over the life of the loan based on the exposure at default, loan
attributes and reasonable and supportable economic forecasts. The exposure at default considers the current unpaid balance, prepayment assumptions and utilization of unfunded commitment assumptions. In order to capture the unique risk
characteristics of the loan and lease portfolios, the lifetime loss rate models segment the portfolios based on individual loan attributes. The economic forecasts include various projections of Gross Domestic Product, interest rates, property
price indices, and employment measures (the macroeconomic assumptions). The Company uses multiple economic forecasts, which are probability weighted and applied over the life of the loans and leases. The collective ACL estimate
incorporates reasonable and supportable forecasts of various macroeconomic variables over the remaining life of loans and leases. The development of the reasonable and supportable forecasts assumes each macroeconomic assumption
will revert to long-term expectations. The Company calibrates expected losses for each model using a scalar, which is determined by examining the loss rates of peer banks that have similar operations and asset bases to the Company and
comparing these peer group loss rates to the model results. In addition, adjustments are made to the quantitative model outputs for relevant qualitative factors.

We identified the assessment of the January 1, 2020 collective ACL and December 31, 2020 collective ACL as a critical audit matter. A high degree of audit effort, including specialized skills and knowledge, and subjective and complex
auditor judgment was involved in the assessment due to measurement uncertainty. Specifically, the assessment encompassed the evaluation of the collective ACL methodology, including the methods and models used to estimate (1) the
lifetime loss rates and their significant assumptions, including portfolio segmentation, the economic forecast scenarios and related weighting, macroeconomic assumptions, the reasonable and supportable economic forecast periods, the
scalar applied to each model, prepayment assumptions, utilization of unfunded commitments assumptions, and credit risk ratings for commercial loans, and (2) the qualitative factors and their significant assumptions and inputs, including
historic loss patterns and the impact of current portfolio metrics. The assessment also included an evaluation of the conceptual soundness and performance of the models. In addition, auditor judgment was required to evaluate the
sufficiency of audit evidence obtained.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company’s measurement of the
collective ACL estimates, including over the:

•
•
•
•
•
•

development of the collective ACL methodology
development of the lifetime loss rate models
identification and determination of the significant assumptions used in the lifetime loss rate models
performance monitoring of the lifetime loss rate models for the December 31, 2020collective ACL
development of the qualitative factors, including the significant assumptions used in the measurement of the qualitative factors
analysis of the collective ACL results, trends, and ratios.

We evaluated the Company’s process to develop the collective ACL estimates by testing certain sources of data and assumptions that the Company used and considered the relevance and reliability of such data and assumptions. In
addition, we involved credit risk professionals with specialized skills and knowledge, who assisted in:

•
•

•
•

•
•
•

•

evaluating the Company’s collective ACL methodology for compliance with U.S. generally accepted accounting principles
evaluating judgments made by the Company relative to the development and performance testing of the lifetime loss rate models by comparing them to relevant Company-specific metrics and trends and the applicable industry
and regulatory practices
testing the conceptual soundness and performance testing of the lifetime loss rate models by inspecting the model documentation to determine whether the models are suitable for their intended use
evaluating the methodology utilized to incorporate reasonable and supportable forecast scenarios and related weightings used for each macroeconomic assumption by comparing it to the Company’s business environment and
relevant industry practices
assessing the composition of the peer group used in determining the scalar used to calibrate the model results by comparing to specific portfolio risk characteristics
assessing whether the loan portfolio is segmented by similar risk characteristics by comparing it to the Company’s business environment and relevant industry practices
testing the conceptual soundness of the methodology used to determine the prepayment and utilization of unfunded commitments assumptions by comparing it to relevant Company specific metrics and trends and applicable
industry practices
testing individual credit risk ratings for a selection of commercial loans by evaluating the financial performance of the borrower, sources of repayment, and any relevant guarantees or underlying collateral

F-4

Table of Contents

•

evaluating the methodology used to develop the qualitative factors and the effect of those factors on the collective ACL compared with relevant credit risk factors and consistency with credit trends.

We also assessed the sufficiency of the audit evidence obtained related to the January 1, 2020 collective ACL and the December 31, 2020 collective ACL estimates by evaluating the:

•
•
•

cumulative results of the audit procedures
qualitative aspects of the Company’s accounting practices
potential bias in the accounting estimates.

                    /s/ KPMG LLP

We have served as the Company’s auditor since 2003.

Boston, Massachusetts
February 26, 2021

F-5

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES
Consolidated Balance Sheets 

At December 31,

2020

2019

(In Thousands Except Share Data)

Cash and due from banks
Short-term investments

Total cash and cash equivalents

Investment securities available-for-sale
Investment securities held-to-maturity (fair value of $0 and $87,561, respectively)
Equity securities held-for-trading
Total investment securities

ASSETS

Loans and leases:

Commercial real estate loans
Commercial loans and leases
Consumer loans

Total loans and leases

Allowance for loan and lease losses

Net loans and leases

Restricted equity securities
Premises and equipment, net of accumulated depreciation of $82,233 and $76,763, respectively
Right-of-use asset operating leases
Deferred tax asset
Goodwill
Identified intangible assets, net of accumulated amortization of $38,752 and $37,481, respectively
Other real estate owned ("OREO") and repossessed assets, net
Other assets

LIABILITIES AND STOCKHOLDERS' EQUITY

Total assets

Deposits:

Non-interest-bearing deposits:
Demand checking accounts

Interest-bearing deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest-bearing deposits

Total deposits

Borrowed funds:

Advances from the Federal Home Loan Bank of Boston ("FHLBB")
Subordinated debentures and notes
Other borrowed funds
Total borrowed funds
Operating lease liabilities
Mortgagors' escrow accounts
Accrued expenses and other liabilities

Total liabilities

Commitments and contingencies (Note 13)
Stockholders' Equity:

Brookline Bancorp, Inc. stockholders' equity:

Common stock, $0.01 par value; 200,000,000 shares authorized; 85,177,172 shares issued and 85,177,172 shares issued, respectively
Additional paid-in capital
Retained earnings, partially restricted
Accumulated other comprehensive loss
Treasury stock, at cost; 6,525,783 shares and 5,003,127 shares, respectively
Unallocated common stock held by ESOP; 51,114 shares and 79,548 shares, respectively

Total stockholders' equity

Total liabilities and stockholders' equity

See accompanying notes to consolidated financial statements.
F-6

$

$

$

$

36,069 
398,848 
434,917 
745,822 
— 
526 
746,348 

3,823,826 
2,274,899 
1,170,828 
7,269,553 
(114,379)
7,155,174 
49,786 
71,568 
24,143 
40,129 
160,427 
3,152 
6,515 
250,265 
8,942,424 

$

$

1,592,205 

$

513,948 
701,659 
2,018,977 
1,389,998 
693,909 
5,318,491 
6,910,696 

648,849 
83,746 
87,652 
820,247 
24,143 
5,901 
239,659 
8,000,646 

852 
737,178 
264,892 
16,490 
(77,343)
(291)
941,778 
8,942,424 

$

33,589 
44,201 
77,790 
498,995 
86,780 
3,581 
589,356 

3,669,222 
1,838,748 
1,229,846 
6,737,816 
(61,082)
6,676,734 
53,818 
74,350 
24,876 
25,017 
160,427 
4,423 
2,631 
167,431 
7,856,853 

1,141,578 

371,380 
613,467 
1,682,005 
1,671,738 
349,904 
4,688,494 
5,830,072 

758,469 
83,591 
60,689 
902,749 
24,876 
7,232 
146,318 
6,911,247 

852 
736,601 
265,376 
2,283 
(59,073)
(433)
945,606 
7,856,853 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Interest and dividend income:

Loans and leases
Debt securities
Marketable and restricted equity securities
Short-term investments

Total interest and dividend income

Interest expense:

Deposits
Borrowed funds

Total interest expense

Net interest income
Provision for credit losses

Net interest income after provision for credit losses

Non-interest income:

Deposit fees
Loan fees
Loan level derivative income, net
Gain on investment securities, net
Gain on sales of loans and leases held-for-sale
Other

Total non-interest income

Non-interest expense:

Compensation and employee benefits
Occupancy
Equipment and data processing
Professional services
FDIC insurance
Advertising and marketing
Amortization of identified intangible assets
Merger and acquisition expense
Other

Total non-interest expense

Income before provision for income taxes
Provision for income taxes

Net income before noncontrolling interest in subsidiary

Less net income attributable to noncontrolling interest in subsidiary

Net income attributable to Brookline Bancorp, Inc.

Earnings per common share:

Basic
Diluted

Weighted average common shares outstanding during the year:

Basic
Diluted

Dividends declared per common share

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Consolidated Statements of Income 

2020

Year Ended December 31,
2019
(In Thousands Except Share Data)

2018

$

$

$

$

$

309,798 
13,758 
2,848 
413 
326,817 

48,426 
18,228 
66,654 
260,163 
61,886 
198,277 

9,050 
2,048 
4,268 
1,970 
1,118 
6,190 
24,644 

100,985 
15,386 
17,345 
5,157 
4,229 
4,126 
1,271 
— 
12,345 
160,844 
62,077 
14,442 
47,635 
— 
47,635  $

0.60  $
0.60 

330,345 
12,281 
3,477 
1,523 
347,626 

69,615 
24,711 
94,326 
253,300 
9,583 
243,717 

10,623 
2,097 
8,262 
508 
1,709 
6,594 
29,793 

96,554 
15,696 
18,652 
4,366 
1,445 
4,044 
1,663 
1,125 
13,936 
157,481 
116,029 
28,269 
87,760 
43 
87,717 

1.10 
1.10 

78,951,892 
79,103,289 

0.460  $

79,679,781 
79,856,921 
0.450 

$

$

$

$

295,269 
13,960 
3,964 
700 
313,893 

41,978 
24,216 
66,194 
247,699 
4,951 
242,748 

10,400 
1,427 
5,440 
227 
1,883 
5,847 
25,224 

91,535 
14,991 
18,213 
4,404 
2,722 
4,016 
2,080 
3,787 
13,484 
155,232 
112,740 
26,189 
86,551 
3,489 
83,062 

1.04 
1.04 

79,669,668 
79,909,251 
0.395 

See accompanying notes to consolidated financial statements.
F-7

Table of Contents

Net income before noncontrolling interest in subsidiary

$

47,635  $

87,760 

$

86,551 

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income

2020

Year Ended December 31,
2019
(In Thousands)

2018

Other comprehensive loss, net of taxes:

Investment securities available-for-sale:

Unrealized securities holding gains (losses)

Income tax (expense) benefit

Net unrealized securities holding gains (losses) before reclassification adjustments

Less reclassification adjustments for securities gains included in net income:
Gain on sales of securities, net
Income tax expense

Net reclassification adjustments for securities gains included in net income
Net unrealized securities holding gains

Cash flow hedges:
Net change in fair value of Cash flow hedges
Income tax benefit
Net change in fair value of Cash flow hedges

Postretirement benefits:

Adjustment of accumulated obligation for postretirement benefits
Income tax benefit (expense)

Net adjustment of accumulated obligation for postretirement benefits

Other comprehensive gain, net of taxes

Comprehensive income
Net income attributable to noncontrolling interest in subsidiary

Comprehensive income attributable to Brookline Bancorp, Inc.

21,683 
(4,770)
16,913 

3,245 
(715)
2,530 
14,383 

7 
— 
7 

(248)
65 
(183)

14,207 

15,290 
(3,379)
11,911 

— 
— 
— 
11,911 

— 
— 
— 

(227)
59 
(168)

11,743 

$

61,842 
— 
61,842  $

99,503 
43 
99,460 

$

(4,444)
980 
(3,464)

173 
(38)
135 
(3,599)

— 
— 
— 

121 
(32)
89 

(3,510)

83,041 
3,489 
79,552 

See accompanying notes to consolidated financial statements.
F-8

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES
Consolidated Statements of Changes in Stockholders' Equity
Year Ended December 31, 2020, 2019 and 2018

Common 
Stock

Additional 
Paid-in 
Capital

Retained 
Earnings

Accumulated 
Other 
Comprehensive 
Income (Loss)

Treasury 
Stock

Unallocated 
Common Stock 
Held by ESOP

Total Brookline 
Bancorp, Inc. 
Stockholders' 
Equity

Noncontrolling 
Interest in 
Subsidiary

Total Stockholders' 
Equity

Balance at December 31, 2019
Net income attributable to Brookline Bancorp, Inc. 
Other comprehensive income
Common stock dividends of $0.46 per share
Restricted stock awards, net of awards surrendered
Compensation under recognition and retention plan
Treasury stock, repurchase shares
Common stock held by ESOP committed to be released
(28,434 shares)
Adoption of ASU 2016-13 (CECL)

Balance at December 31, 2020

$

$

852 
— 
— 
— 
— 
— 
— 

— 
— 
852 

$

$

736,601 
— 
— 
— 
(2,105)
2,520 
— 

162 
— 
737,178 

$

$

265,376 
47,635 
— 
(36,396)
— 
(200)
— 

— 
(11,523)
264,892 

$

$

2,283 
— 
14,207 
— 
— 
— 
— 

— 
— 
16,490 

$

$

(In Thousands)
$

(59,073)
— 
— 
— 
1,730 
— 
(20,000)

— 
— 
(77,343)

$

(433)
— 
— 
— 
— 
— 
— 

142 
— 
(291)

$

$

945,606 
47,635 
14,207 
(36,396)
(375)
2,320 
(20,000)

304 
(11,523)
941,778 

$

$

— 
— 
— 
— 
— 
— 
— 

— 
— 
— 

$

$

945,606 
47,635 
14,207 
(36,396)
(375)
2,320 
(20,000)

304 
(11,523)
941,778 

See accompanying notes to consolidated financial statements.
F-9

 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES
Consolidated Statements of Changes in Stockholders' Equity (Continued)
Year Ended December 31, 2020, 2019 and 2018

Balance at December 31, 2018
Reclassification due to the adoption of ASU No. 2018-02
Net income attributable to Brookline Bancorp, Inc. 
Net income attributable to noncontrolling interest in
subsidiary
Common stock issued for acquisition
Issuance of non controlling interest
Other comprehensive income
Common stock dividends of $0.44 per share
Dividend distribution to owners of noncontrolling interest
in subsidiary
Redemption of noncontrolling interest in subsidiary
Compensation under recognition and retention plans
Restricted stock awards, net of awards surrendered
Treasury stock, repurchase shares
Common stock held by ESOP committed to be released
(30,402 shares)

Balance at December 31, 2019

$

$

Common 
Stock

Additional 
Paid-in 
Capital

Retained 
Earnings

Accumulated 
Other 
Comprehensive 
Income (Loss)

Treasury 
Stock

Unallocated 
Common Stock 
Held by ESOP

Total Brookline 
Bancorp, Inc. 
Stockholders' 
Equity

Noncontrolling 
Interest in 
Subsidiary

Total Stockholders' 
Equity

$

852 
— 
— 

$

755,629 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

(930)
(18,470)
— 
80 
— 

$

212,838 
— 
87,717 

— 
— 
— 
— 
(35,110)

— 
— 
— 
(69)
— 

(9,460)
— 
— 

— 
— 
— 
11,743 
— 

— 
— 
— 
— 
— 

$

(In Thousands)
$

(59,120)
— 
— 

$

(599)
— 
— 

$

900,140 
— 
87,717 

$

10,479 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 
1,918 
(1,871)

— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 
11,743 
(35,110)

(930)
(18,470)
— 
1,929 
(1,871)

43 
— 
— 
— 
— 

— 
(10,522)
— 
— 
— 

— 
852 

$

292 
736,601 

$

— 
265,376 

$

— 
2,283 

$

— 
(59,073)

$

166 
(433)

$

458 
945,606 

$

— 
— 

$

910,619 
— 
87,717 

43 
— 
— 
11,743 
(35,110)

(930)
(28,992)
— 
1,929 
(1,871)

458 
945,606 

See accompanying notes to consolidated financial statements.
F-10

 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES
Consolidated Statements of Changes in Stockholders' Equity (Continued)
Year Ended December 31, 2020, 2019 and 2018

Balance at December 31, 2017
Reclassification due to the adoption of ASU No. 2018-02
Net income attributable to Brookline Bancorp, Inc. 
Net income attributable to noncontrolling interest in
subsidiary
Common stock issued for acquisition
Issuance of non controlling interest
Other comprehensive loss
Common stock dividends of $0.395 per share
Dividend distribution to owners of noncontrolling interest
in subsidiary
Compensation under recognition and retention plans
Restricted stock awards issued, net of awards surrendered
Treasury stock, repurchase shares
Common stock held by ESOP committed to be released
(32,382 shares)

Balance at December 31, 2018

$

$

Common 
Stock

Additional 
Paid-in 
Capital

Retained 
Earnings

Accumulated 
Other 
Comprehensive 
Loss

Treasury 
Stock

Unallocated 
Common Stock 
Held by ESOP

Total Brookline 
Bancorp, Inc. 
Stockholders' 
Equity

Noncontrolling 
Interest in 
Subsidiary

Total Stockholders' 
Equity

$

817 
— 
— 

$

699,976 
— 
— 

— 
35 
— 
— 
— 

— 
— 
— 
— 

— 
55,148 
— 
— 
— 

— 
— 
139 
— 

$

161,217 
— 
83,062 

— 
— 
— 
— 
(31,441)

— 
— 
— 
— 

(5,950)
— 
— 

— 
— 
— 
(3,510)
— 

— 
— 
— 
— 

$

(In Thousands)
$

(51,454)
— 
— 

$

(776)
— 
— 

$

803,830 
— 
83,062 

— 
— 
— 
— 
— 

— 
— 
2,334 
(10,000)

— 
— 
— 
— 
— 

— 
— 
— 
— 

— 
55,183 
— 
(3,510)
(31,441)

— 
— 
2,473 
(10,000)

$

8,753 
— 
— 

3,489 
— 
130 
— 
— 

(1,893)
— 
— 
— 

— 
852 

$

366 
755,629 

$

— 
212,838 

$

— 
(9,460)

$

— 
(59,120)

$

177 
(599)

$

543 
900,140 

$

— 
10,479 

$

812,583 
— 
83,062 

3,489 
55,183 
130 
(3,510)
(31,441)

(1,893)
— 
2,473 
(10,000)

543 
910,619 

See accompanying notes to consolidated financial statements.
F-11

 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Consolidated Statements of Cash Flows

Cash flows from operating activities:

Net income attributable to Brookline Bancorp, Inc. 

Adjustments to reconcile net income to net cash provided from operating activities:

Net income attributable to noncontrolling interest in 
subsidiary

Provision for credit losses
Origination of loans and leases held-for-sale
Proceeds from sales of loans and leases held-for-sale, net
Deferred income tax benefit
Depreciation of premises and equipment
Amortization of investment securities premiums and discounts, net
Amortization of deferred loan and lease origination costs, net
Amortization of identified intangible assets
Amortization of debt issuance costs
(Accretion) amortization of acquisition fair value adjustments, net
Gain on investment securities, net
Gain on sales of loans and leases held-for-sale
Loss (gain) on sales of OREO and other repossessed assets, net
Write-down of OREO and other repossessed assets
Compensation under recognition and retention plans
ESOP shares committed to be released
Net change in:

Cash surrender value of bank-owned life insurance
Equity securities held-for-trading
Other assets
Accrued expenses and other liabilities

Net cash provided from operating activities

Cash flows from investing activities:

Proceeds from sales of investment securities available-for-sale
Proceeds from maturities, calls, and principal repayments of investment securities available-for-sale
Purchases of investment securities available-for-sale
Proceeds from maturities, calls, and principal repayments of investment securities held to maturity
Purchases of investment securities held-to-maturity
Proceeds from redemption/sales of restricted equity securities
Purchase of restricted equity securities
Proceeds from sales of loans and leases held-for-investment, net
Net increase in loans and leases
Acquisitions, net of cash and cash equivalents acquired

See accompanying notes to consolidated financial statements.
F-12

2020

Year Ended December 31,
2019
(In Thousands)

2018

$

47,635  $

87,717 

$

83,062 

— 
61,886 
— 
— 
(19,102)
5,486 
2,809 
7,316 
1,271 
101 
(420)
(1,970)
(1,118)
— 
1,036 
2,361 
304 

(1,007)
1,781 
(77,778)
81,897 
112,488 

141,448 
214,571 
(503,495)
6,302 
— 
33,927 
(29,895)
7,370 
(567,284)
— 

43 
9,583 
(15,361)
19,930 
(2)
6,861 
1,810 
7,045 
1,663 
100 
(809)
(508)
(1,709)
108 
903 
2,683 
458 

(1,030)
1,215 
(63,235)
45,254 
102,719 

— 
68,165 
(50,400)
28,858 
(1,430)
20,857 
(12,924)
13,860 
(467,493)
— 

3,489 
4,951 
(25,370)
26,519 
(5,453)
7,382 
2,200 
6,971 
2,080 
100 
354 
(227)
(1,883)
— 
1,234 
2,546 
543 

(1,039)
(5,371)
(10,855)
31,796 
123,029 

22,210 
82,896 
(73,852)
3,290 
(8,915)
12,110 
(13,262)
7,294 
(593,968)
(24,659)
(Continued)

Table of Contents

Purchase of premises and equipment, net
Proceeds from sales of OREO and other repossessed assets

Net cash used for investing activities

Cash flows from financing activities:

Increase in demand checking, NOW, savings and money market accounts
Increase in certificates of deposit
Proceeds from FHLBB advances
Repayment of FHLBB advances
Increase in other borrowed funds, net
Decrease in mortgagors' escrow accounts, net
Proceeds from exercise of stock options
Repurchases of common stock
Common stock issued for acquisition
Payment of dividends on common stock
Payment of income taxes for shares withheld in share based activity
Redemption of noncontrolling interest in subsidiary
Proceeds from issuance of noncontrolling units
Payment of dividends to owners of noncontrolling interest in subsidiary

Net cash provided from financing activities
Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of year

Cash and cash equivalents at end of year

Supplemental disclosure of cash flow information:

Cash paid during the year for:

Interest on deposits, borrowed funds and subordinated debt
Income taxes

Non-cash investing activities:

Transfer from loans to other real estate owned

Acquisition of First Commons Bank, N.A.:

Fair value of assets acquired, net of cash and cash equivalents acquired
Fair value of liabilities assumed

2020

Year Ended December 31,
2019
(In Thousands)

2018

(2,909)
4,436 
(695,529)

1,018,359 
62,603 
2,987,656 
(3,097,276)
26,963 
(1,331)
— 
(20,000)
— 
(36,396)
(410)
— 
— 
— 
940,168 
357,127 
77,790 
434,917 

$

68,510  $
29,392 

9,356 

$

— 
— 

(4,997)
6,482 
(399,022)

143,551 
232,911 
4,029,662 
(4,055,568)
7,955 
(194)
— 
(1,871)
— 
(35,110)
(46)
(35,851)
— 
(930)
284,509 
(11,794)
89,584 
77,790 

94,533 
27,345 

6,105 

— 
— 

$

$

$

(3,352)
2,186 
(588,022)

1,006 
580,878 
6,607,745 
(6,713,279)
5,095 
(260)
490 
(10,000)
55,182 
(31,441)
(81)
— 
130 
(1,893)
493,572 
28,579 
61,005 
89,584 

65,182 
21,129 

3,020 

292,025 
278,988 

$

$

$

See accompanying notes to consolidated financial statements.
F-13

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(1) Basis of Presentation

Overview

Brookline Bancorp, Inc. (the "Company") is a bank holding company (within the meaning of the Bank Holding Company Act of 1956, as amended) and the parent of Brookline Bank, a Massachusetts-chartered trust company and
Bank Rhode Island ("BankRI"), a Rhode Island-chartered financial institution (collectively referred to as the "Banks"). The Banks are all members of the Federal Reserve System. The Company is also the parent of Brookline Securities
Corp. ("BSC"). The Company's primary business is to provide commercial, business and retail banking services to its corporate, municipal and retail customers through the Banks and its non-bank subsidiaries. Until February 14, 2020 (the
"Merger Closing Date"), the Company was also the parent of First Ipswich Bank ("First Ipswich"), a Massachusetts-chartered trust company. Effective upon the Merger Closing Date, First Ipswich was merged with and into Brookline
Bank, with Brookline as the surviving institution.

Brookline Bank, which includes its wholly-owned subsidiaries Longwood Securities Corp., Eastern Funding LLC ("Eastern Funding") and First Ipswich Insurance Agency, operates 30 full-service banking offices in the greater

Boston metropolitan area with two additional lending offices. BankRI, which includes its wholly-owned subsidiaries, Acorn Insurance Agency, BRI Realty Corp., Macrolease Corporation ("Macrolease"), BRI Investment Corp. and its
wholly-owned subsidiary, BRI MSC Corp., operates 20 full-service banking offices in the greater Providence, Rhode Island area.

The Company's activities include acceptance of commercial, municipal and retail deposits, origination of mortgage loans on commercial and residential real estate located principally in all New England states, origination of
commercial loans and leases to small- and mid-sized businesses, investment in debt and equity securities, and the offering of cash management and investment advisory services. The Company also provides specialty equipment financing
through its subsidiaries Eastern Funding, which is based in New York City, New York, and Macrolease, which is based in Plainview, New York.

The Company and the Banks are supervised, examined and regulated by the Board of Governors of the Federal Reserve System ("FRB"). As a Massachusetts-chartered trust company, Brookline Bank is also subject to regulation
under the laws of the Commonwealth of Massachusetts and the jurisdiction of the Massachusetts Division of Banks. As a Rhode Island-chartered financial institution, BankRI is subject to regulation under the laws of the State of Rhode
Island and the jurisdiction of the Banking Division of the Rhode Island Department of Business Regulation.

The Federal Deposit Insurance Corporation ("FDIC") offers insurance coverage on all deposits up to $250,000 per depositor at each of the Banks. As FDIC-insured depository institutions, the Banks are also secondarily subject to

supervision, examination and regulation by the FDIC.

Basis of Financial Statement Presentation

The Company's consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") as set forth by the Financial Accounting Standards Board ("FASB") in its

Accounting Standards Codification and through the rules and interpretive releases of the Securities and Exchange Commission ("SEC") under the authority of federal securities laws.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances are eliminated in consolidation.

In preparing these consolidated financial statements, management is required to make significant estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosure of contingent assets
and liabilities. Actual results could differ from those estimates based upon changing conditions, including economic conditions and future events. Material estimates that are particularly susceptible to significant changes in the near-term
include the determination of the allowance for loan and lease losses, the determination of fair market values of assets and liabilities, including acquired loans, the review of goodwill and intangibles for impairment and the review of
deferred tax assets for valuation allowance.

The judgments used by management in applying these significant estimates may be affected by a further and prolonged deterioration in the economic environment, which may result in changes to future financial results. For
example, subsequent evaluations of the loan and lease portfolio, in light of the factors then prevailing, may result in significant changes in the allowance for loan and lease losses in future periods, and the inability to collect outstanding
principal may result in increased loan and lease losses.

F-14

Table of Contents

Reclassification

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Certain previously reported amounts have been reclassified to conform to the current year's presentation.

Cash and Cash Equivalents

For purposes of reporting asset balances and cash flows, cash and cash equivalents includes cash on hand and due from banks (including cash items in process of clearing), interest-bearing deposits with banks, federal funds sold,

money market mutual funds and other short-term investments with original maturities of three months or less.

Investment Securities

Investment securities, other than those reported as short-term investments, are classified at the time of purchase as "available-for-sale," "held-to-maturity," or "held-for-trading." Classification is periodically re-evaluated for
consistency with the Company's goals and objectives. Equity investments in the Federal Home Loan Bank of Boston ("FHLBB"), the Federal Reserve Bank of Boston and other restricted equities are discussed in more detail in Note 5,
"Restricted Equity Securities."

Investment Securities Available-for-Sale, Held-to-Maturity, and Held-for-Trading

Investment securities for which the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and carried at amortized cost. Those investment securities held for indefinite periods of time but not

necessarily to maturity are classified as available-for-sale. Investment securities held for indefinite periods of time include investment securities that management intends to use as part of its asset/liability, liquidity, and/or capital
management strategies and may be sold in response to changes in interest rates, maturities, asset/liability mix, liquidity needs, regulatory capital needs or other business factors. Investment securities available-for-sale are carried at
estimated fair value, primarily obtained from a third-party pricing service, with unrealized gains and losses reported on an after-tax basis in stockholders' equity as accumulated other comprehensive income or loss. Investment securities
expected to be held for very short term duration, used for hedging, or are marketable equity securities are typically designated held-for-trading. Held-for-trading securities are carried at estimated fair value principally based on market
prices and dealer quotes received from third-party and nationally-recognized pricing services. Gains and losses for held-for-trading are reported on the income statement as gains on investment securities, net. As of December 31, 2020 and
2019, the Company did not make any adjustments to the prices provided by the third-party pricing service.

Security transactions are recorded on the trade date. Realized gains and losses are determined using the specific identification method and are recorded in non-interest income. Interest and dividends on securities are recorded using
the accrual method. Premiums and discounts on securities are amortized or accreted into interest income using the level-yield method over the remaining period to contractual maturity, adjusted for the effect of actual prepayments in the
case of mortgage-backed securities ("MBSs") and collateralized mortgage obligations ("CMOs"). These estimates of prepayment assumptions are made based upon the actual performance of the underlying security, current interest rates,
the general market consensus regarding changes in mortgage interest rates, the contractual repayment terms of the underlying loans, the priority rights of the investors to the cash flows from the mortgage securities and other economic
conditions. When differences arise between anticipated prepayments and actual prepayments, the effective yield is recalculated to reflect actual payments to date and anticipated future payments. Unamortized premium or discount is
adjusted to the amount that would have existed had the new effective yield been applied since purchase, with a corresponding charge or credit to interest income.

Restricted Equity Securities

The Company invests in the stock of the FHLBB, the Federal Reserve Bank of Boston and a small amount of other restricted securities. No ready market exists for these stocks, and they have no quoted market values. The Banks, as

members of the FHLBB, are required to maintain investments in the capital stock of the FHLBB equal to their membership base investments plus an activity-based investment determined according to the Banks' level of outstanding
FHLBB advances. Federal Reserve Bank of Boston stock was purchased and is redeemable at par. The Company reviews for impairment of these securities based on the ultimate recoverability of the cost basis in the stock. As of
December 31, 2020 and 2019, no impairment has been recognized.

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Loans

Originated Loans

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Loans the Company originates for the portfolio, and for which it has the intent and ability to hold to maturity, are reported at amortized cost, inclusive of deferred loan origination fees and expenses, less unadvanced funds due to

borrowers on loans and the allowance for loan and lease losses.

Interest income on loans and leases originated for the portfolio is accrued on unpaid principal balances as earned. Loan origination fees and direct loan origination costs are deferred, and the net fee or cost is recognized in interest

income using the interest method. Deferred amounts are recognized for fixed-rate loans over the contractual life of the loans and for adjustable-rate loans over the period of time required to adjust the contractual interest rate to a yield
approximating a market rate at the origination date. If a loan is prepaid, the unamortized portion of the loan origination costs, including third party referral related costs not subject to rebate from the dealer, is charged to income.

Loans and Leases Held-for-Sale

Management identifies and designates certain newly originated loans and leases for sale to specific financial institutions, subject to the underwriting criteria of those financial institutions. These loans and leases are held for sale and

are carried at the lower of cost or market as determined in the aggregate. Deferred loan fees and costs are included in the determination of the gain or loss on sale.

Acquired Loans

On a quarterly basis prior to the adoption of ASU 2016-13, management reforecasted the expected cash flows for acquired ASC 310-30 loans, and took into account prepayment speeds, probability of default and loss given defaults.
Management compared cash flow projections per the reforecast to the original cash flow projections and determined whether any reduction in cash flow expectations were due to deterioration, or if the change in cash flow expectation was
related to noncredit events. This cash flow analysis was used to evaluate the need for a provision for loan and lease losses and/or prospective yield adjustments for the acquired portfolio. Upon adoption of ASU 2016-13, the Company did
not reassess whether previously recognized purchased credit impaired loans accounted for under prior accounting guidance met the criteria of a purchased credit deteriorated ("PCD") loan as of the date of adoption. PCD loans are initially
recorded at fair value along with an ACL determined using the same methodology as originated loans. The sum of the loan's purchase price and ACL becomes its initial amortized cost basis. The difference between the initial amortized
cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the ACL are recorded through provision for credit losses. As of December
31, 2020, there were no PCD loans in the Company's portfolios.

Nonperforming Loans

Nonaccrual Loans

Accrual of interest on loans generally is discontinued when contractual payment of principal or interest becomes past due 90 days or, if in management's judgment, reasonable doubt exists as to the full timely collection of interest.

Exceptions may be made if the loan has matured and is in the process of renewal or is well-secured and in the process of collection. When a loan is placed on nonaccrual status, interest accruals cease and uncollected accrued interest is
reversed and charged against current interest income. Interest payments on nonaccrual loans are generally applied to principal. If collection of the principal is reasonably assured, interest payments are recognized as income on the cash
basis. Loans are generally returned to accrual status when principal and interest payments are current, full collectability of principal and interest is reasonably assured and a consistent record of at least six consecutive months of
performance has been achieved.

Impaired Loans

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan
agreement. Smaller-balance, homogeneous loans that are evaluated collectively for impairment, such as residential, home equity and other consumer loans are specifically excluded from the impaired loan portfolio except where the loan is
classified as a troubled debt restructuring. The Company has defined the population of impaired loans to include nonaccrual loans and troubled debt restructured ("TDR") loans.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

When the ultimate collectability of the total principal of an impaired loan or lease is in doubt and the loan is on nonaccrual status, all payments are applied to principal, under the cost recovery method. When the ultimate collectability

of the total principal of an impaired loan or lease is not in doubt and the loan or lease is on nonaccrual status, contractual interest is credited to interest income when received, under the cash basis method.

The value of an impaired loan is measured based upon the present value of expected future cash flows discounted at the loan's effective interest rate, or the fair value of the collateral if the loan is collateral-dependent and its payment

is expected solely based on the underlying collateral. For impaired loans deemed collateral dependent, where impairment is measured using the fair value of the collateral, the Company will either obtain a new appraisal or use another
available source of collateral assessment to determine a reasonable estimate of the fair value of the collateral.

Interest collected on impaired loans is either applied against principal or reported as income according to management's judgment as to the collectability of principal. If management does not consider a loan ultimately collectible
within an acceptable time frame, payments are applied as principal to reduce the loan balance. If full collection of the remaining recorded investment should subsequently occur, interest receipts are recorded as interest income on a cash
basis.

Troubled Debt Restructured Loans

In cases where a borrower experiences financial difficulties and the Company makes certain concessionary modifications to contractual terms, the loan is classified as a TDR loan. In determining whether a debtor is experiencing

financial difficulties, the Company considers, among other factors, whether the debtor is in payment default or is likely to be in payment default in the foreseeable future without the modification, if the debtor declared or is in the process
of declaring bankruptcy, there is substantial doubt that the debtor will continue as a going concern, the debtor's entity-specific projected cash flows will not be sufficient to service its debt, or the debtor cannot obtain funds from sources
other than the existing creditors at market terms for debt with similar risk characteristics.

Large groups of small-balance homogeneous loans such as residential real estate, residential construction, home equity and other consumer portfolios are collectively evaluated for impairment. As such, the Company does not
typically identify individual loans within these groupings as impaired loans or for impairment evaluation and disclosure. However, the Company evaluates all TDRs for impairment on an individual loan basis regardless of loan type.

Modifications may include interest-rate reductions, short-term (defined as one year or less) changes in payment structure to interest-only payments, short-term extensions of the loan's original contractual term, or less frequently,

principal forgiveness, interest capitalization, forbearance and other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. Typically, TDRs are placed on nonaccrual status and reported as
nonperforming loans. Generally, a nonaccrual loan that is restructured remains on nonaccrual for a period of six consecutive months to demonstrate that the borrower can meet the restructured terms; however, performance prior to the
restructuring, or significant events that coincide with the restructuring, are considered in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of restructuring or after
a shorter performance period. If the borrower's ability to meet the revised payment schedule is not reasonably assured, the loan remains classified as a nonaccrual loan.

Loans restructured at an interest rate equal to or greater than that of a new loan with comparable risk at the time the loan agreement is modified may be excluded from restructured loan disclosures in years subsequent to the

restructuring if they are in compliance with the modified terms.

Allowance for Credit Losses

Management has established a methodology to determine the adequacy of the allowance for credit losses that assesses the risks and losses expected on the loan and lease portfolio. Additions to the allowance for credit losses are
made by charges to the provision for credit losses. Losses on loans and leases are charged off against the allowance when all or a portion of a loan or lease is considered uncollectible. Subsequent recoveries on loans previously charged off,
if any, are credited to the allowance when realized.

To calculate the December 31, 2020 allowance for loans collectively evaluated, management uses models developed by a third party. The models include: Commercial real estate ("CRE") lifetime, Commercial and industrial ("C&I")

lifetime, Retail lifetime, C&I historical, and Retail historical. Lifetime loss rate models calculate the expected losses over the life of the loan based on loan attributes and reasonable, supportable economic forecasts.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Key assumptions used in the models include portfolio segmentation, prepayments, and the expected utilization of unfunded commitments, among others. The portfolios are segmented by loan level attributes such as loan size, date of
origination, and delinquency status to create homogenous loan pools. Pool level metrics are calculated and loss rates are subsequently applied to the pools as the loans have like characteristics. Prepayment assumptions are embedded within
the models and are based on the same data used for model development. Model development data and developmental time periods vary by model, but all use at least ten years of historical data and capture at least one recessionary period.
Expected utilization is based on current utilization and a loan equivalency ("LEQ") factor. LEQ varies by current utilization and provides a reasonable estimate of expected draws and borrower behavior. Assumptions and model inputs are
reviewed in accordance with model monitoring practices and as information becomes available.

Historical loss rate models apply a loss rate to the outstanding balance of the loan. Management uses historical loss rates
for condominium association, auto, and government lease portfolio segments because these loans have distinct, historical, or
expected loss patterns and a de minimus effect on the overall allowance and provision.

Management elected to use multiple economic forecasts in determining the reserve to account for economic uncertainty. The forecasts include various projections of Gross Domestic Product ("GDP"), interest rates, property price indices,
and employment measures. The forecasts are probability-weighted based on available information at the time of the calculation execution. Scenario weighting and model parameters are reviewed for each calculation and are subject to
change. The models recognize that the life of a loan may exceed the economic forecast therefore the models employ mean reversion techniques at the input level to predict credit losses for loans that are expected to mature beyond the
forecast period. The December 31, 2020 forecasts reflect the immediate and longer-term effects of the COVID-19 pandemic as well as the associated policies and fiscal support provided by local and national authorities.

The CRE lifetime loss rate, C&I lifetime loss rate, and Retail lifetime loss rate models were developed using the historical loss experience of all banks in the model’s developmental dataset. Banks in the model’s developmental dataset may
have different loss experiences due to geography and portfolio as well as variances in operational and underwriting procedures from the Company, and therefore, the Company calibrates expected losses using a scalar for each model. Each
scalar was calculated by examining the loss rates of peer banks that have similar operations and asset bases to the Company and comparing these peer group loss rates to the model results. Peer group loss rates were used in the scalar
calculation because management believes the peer group’s historical losses provide a better reflection of the Company’s current portfolio and operating procedures than the Company’s historical losses. Qualitative adjustments are also
applied to select segments of the loan portfolio where applicable.

For December 31, 2020, management applied qualitative adjustments to the CRE lifetime loss rate and C&I lifetime loss rate. These adjustments were made based on historical loss patterns, current loan and portfolio metrics, and expert
judgment based on professional experience. These qualitative adjustments resulted in additions to reserves for the CRE and C&I portfolio, as compared to the model output.

Prior to the implementation of ASU 2016-13 on January 1, 2020, Management used a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. For
purposes of determining the allowance for loan and lease losses, the Company had segmented certain loans and leases in the portfolio by product type into the following segments: (1) commercial real estate loans, (2) commercial loans and
leases, (3) and consumer loans. Portfolio segments were further disaggregated into classes based on the associated risks within the segments. Commercial real estate loans were divided into three classes: commercial real estate mortgage
loans, multi-family mortgage loans, and construction loans. Commercial loans and leases were divided into three classes: commercial loans which includes taxi medallion loans, equipment financing, and loans to condominium
associations. Consumer loans were divided into three classes: residential mortgage loans, home equity loans, and other consumer loans. A formula-based credit evaluation approach was applied to each group, coupled with an analysis of
certain loans for impairment.

The general allowance related to loans collectively evaluated for impairment was determined using a formula-based approach utilizing the risk ratings of individual credits and loss factors derived from historic portfolio loss rates over a
lookback period, which include estimates of incurred losses over an estimated loss emergence period (“LEP”). The LEP was generated utilizing a charge-off look-back analysis which studied the time from the first indication of elevated
risk of repayment (or other early event indicating a problem) to eventual charge-off to support the LEP considered in the allowance calculation. This

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

reserving methodology established the approximate number of months of LEP that represented incurred losses for each portfolio.

In addition to quantitative measures, relevant qualitative factors included, but were not limited to: (1) levels and trends in past due and impaired loans, (2) levels and trends in charge-offs, (3) changes in underwriting standards, policy
exceptions, and credit policy, (4) experience of lending management and staff, (5) economic trends, (6) industry conditions, (7) effects of changes in credit concentrations, (8) interest rate environment, and (9) regulatory and other changes.
The general allowance related to the acquired loans collectively evaluated for impairment were determined based upon the degree, if any, of deterioration in the pooled loans subsequent to acquisition. The qualitative factors used in the
determination was the same as those used for originated loans.

During the year ended December 31, 2020 and 2019, specific reserves are established for loans individually evaluated for impairment when amortized cost basis is greater than the discounted present value of expected future cash flows or,
in the case of collateral-dependent loans, when there is an excess of a loan's amortized cost basis over the fair value of its underlying collateral. When loans and leases do not share risk characteristics with other financial assets they are
evaluated individually. Individually evaluated loans are reviewed quarterly with adjustments made to the calculated reserve as necessary.

Liability for Unfunded Commitments

In the ordinary course of business, the Company enters into commitments to extend credit, commercial letters of credit, and standby letters of credit. Such financial instruments are recorded in the financial statements when they

become payable. The credit risk associated with these commitments is evaluated in a manner similar to the allowance for loan and lease losses.

Premises and Equipment

Premises and equipment are carried at cost less accumulated depreciation and amortization, except for land which is carried at cost. Premises and equipment are depreciated using the straight-line method over the estimated useful

life of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the lease term or the estimated useful life of the improvements.

Costs related to internal-use software development projects that provide significant new functionality are capitalized. Internal-use software is software acquired or modified solely to meet the Company's needs and for which there is

no plan to market the software externally. Direct and indirect costs associated with the application development stage of internal use software are capitalized until such time that the software is substantially complete and ready for its
intended use. Capitalized costs are amortized on a straight-line basis over the remaining estimated life of the software. Computer software and development costs incurred in the preliminary project stage, as well as training and
maintenance costs, are expensed as incurred.

Leases

The Company leases certain office space under various noncancellable operating leases as well as certain other assets. These leases have original terms ranging from 3 years to over 25 years. Certain leases contain renewal options and
escalation clauses which can increase rental expenses based principally on the consumer price index and fair market rental value provisions. Right-Of-Use Lease Assets are carried on the balance sheet at amortized cost and corresponding
lease liabilities are carried on the balance sheet at present value of the future minimum lease payments, adjusted for any initial direct costs and incentives. All of the Company's current outstanding leases are classified as operating leases.

Bank-Owned Life Insurance

The Company acquired bank-owned life insurance ("BOLI") plans as part of its acquisitions of First Ipswich Bank and BankRI. BOLI represents life insurance on the lives of certain current and former employees who have provided
positive consent allowing their employer to be the beneficiary of such policies. BankRI and Brookline Bank as successor in interest to First Ipswich Bank are the beneficiaries of their respective policies. BankRI and Brookline Bank utilize
BOLI as tax-efficient financing for their benefit obligations to their employees, including their retirement obligations and Supplemental Executive Retirement Plans ("SERPs").

Since BankRI and Brookline Bank are the primary beneficiaries of their respective insurance policies, increases in the cash value of the policies, as well as insurance proceeds received, are recorded in non-interest income and are not

subject to income taxes. BOLI is recorded at the cash value of the policies, less any applicable cash surrender charges, and is reflected as

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

an asset in the accompanying consolidated balance sheets. Cash proceeds, if any, are classified as cash flows from investing activities.

The Company reviews the financial strength of the insurance carriers prior to the purchase of BOLI to ensure minimum credit ratings of at least investment grade. The financial strength of the carriers is reviewed at least annually,

and BOLI with any individual carrier is limited to 10% of the Company's capital. Total BOLI is limited to 25% of the Company's capital.

Goodwill and Other Identified Intangible Assets

Goodwill represents the excess of the cost of an acquisition over the fair value of the net assets acquired. Goodwill and indefinite-lived identified intangible assets are not subject to amortization. Definite-lived identified intangible

assets are assets resulting from acquisitions that are being amortized over their estimated useful lives. The recoverability of goodwill and identified intangible assets is evaluated for impairment at least annually. A Company can perform a
qualitative assessment of whether it is more likely than not that the fair value of an acquired asset is greater than its carrying amount. If the Company qualitatively concludes that it is more likely than not that the fair value of an acquired
asset is greater than its carrying amount, no further testing is necessary. If, however, the Company qualitatively concludes that the fair value of an acquired asset is less than its carrying value, the Company should recognize an impairment
charge for the amount by which the carrying amount exceeds the fair value. However, in accordance with ASC 350-20-35-3B, an entity can bypass the qualitative assessment and perform the quantitative impairment test. Given the current
economic environment, a quantitative analysis was performed where Management selected a sample of comparable acquisitions and calculated the control premium associated with each sale. The Company’s market capitalization times the
sampled control premium allowed Management to compare the calculated fair value to the Company’s current book value to determine if an adjustment to goodwill is warranted. The Company did not have any impairment of Goodwill
and other identified intangible assets as of December 31, 2020. Further analysis of the Company’s goodwill can be found in Note 9 “Goodwill and Other Intangible Assets” within notes to the consolidated financial statements.

OREO and Other Repossessed Assets

OREO and other repossessed assets consists of properties acquired through foreclosure, real estate acquired through acceptance of a deed in lieu of foreclosure and loans determined to be substantively repossessed. Real estate loans

that are substantively repossessed include only those loans for which the Company has taken possession of the collateral. OREO and other repossessed assets which consist of vehicles and equipment, if any, are recorded initially at
estimated fair value less costs to sell, resulting in a new cost basis. The amount by which the recorded investment in the loan exceeds the fair value (net of estimated cost to sell) of the foreclosed or repossessed asset is charged to the
allowance for loan and lease losses. Such evaluations are based on an analysis of individual properties/assets as well as a general assessment of current real estate market conditions. Subsequent declines in the fair value of the foreclosed or
repossessed asset below the new cost basis are recorded through the use of a valuation allowance. Subsequent increases in the fair value are recorded as reductions in the allowance, but not below zero. Rental revenue received on
foreclosed or repossessed assets is included in other non-interest income, whereas operating expenses and changes in the valuation allowance relating to foreclosed and repossessed assets are included in other non-interest expense. Certain
costs used to improve such properties are capitalized. Gains and losses from the sale of OREO and other repossessed assets are reflected in non-interest expense when realized. Together with nonperforming loans, OREO and repossessed
assets comprise nonperforming assets.

Derivatives

The Company utilizes loan level derivatives which consists of interest rate contracts (swaps, caps and floors), and risk participation agreements as part of the Company's interest-rate risk management strategy for certain assets and

liabilities and not for speculative purposes. Based on the Company's intended use for the loan level derivatives at inception, the Company designates the derivative as either an economic hedge of an asset or liability, or a hedging
instrument subject to the hedge accounting provisions of FASB ASC Topic 815, "Derivatives and Hedging."

Loan level derivatives and foreign exchange contracts entered into on behalf of our customers are designated as economic hedges and are recorded at fair value within other assets or liabilities. Changes in the fair value of these non

hedging derivatives are recorded directly through earnings at each reporting period.

Transfer of Financial Assets

Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the

transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.

Securities Sold under Agreements to Repurchase

The Company enters into sales of securities under agreements to repurchase with the Banks' commercial customers. These agreements are treated as financings, and the obligations to repurchase securities sold are reflected as a

liability in the consolidated balance sheets. Securities pledged as collateral under agreements to repurchase are reflected as assets in the accompanying consolidated balance sheets.

Employee Benefits

Costs related to the Company's 401(k) plan are recognized in current earnings. Costs related to the Company's nonqualified deferred compensation plan, SERPs and postretirement benefits are recognized over the vesting period or

the related service periods of the participating employees. Changes in the funded status of postretirement benefits are recognized through comprehensive income in the year in which changes occur.

Compensation expense for the Company's Employee Stock Ownership Program ("ESOP") is recorded at an amount equal to the shares allocated by the ESOP multiplied by the average fair market value of the shares during the year.
The Company recognizes compensation expense ratably over the year based upon the Company's estimate of the number of shares expected to be allocated by the ESOP. The difference between the average fair market value and the cost of
the shares allocated by the ESOP is recorded as an adjustment to additional paid-in capital.

The fair value of restricted stock awards and stock option grants are determined as of the grant date and are recorded as compensation expense over the period in which the shares of restricted stock awards and stock options vest.

Forfeitures are accounted for as they occur.

Fair Value Measurements

ASC 820-10, "Fair Value Measurements and Disclosures," defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value
measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. The
price in the principal (or most advantageous) market used to measure the fair value of the asset or liability is not adjusted for transaction costs. An orderly transaction is a transaction that assumes exposure to the market for a period prior to
the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets and liabilities. It is not a forced transaction. Market participants are buyers and sellers in the principal market that
are independent, knowledgeable, able to transact, and willing to transact.

A fair-value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs are included in ASC 820. The fair value

hierarchy is as follows:

Level 1: Inputs are unadjusted quoted prices in active markets for assets and liabilities identical to those reported at fair value.

Level 2: Inputs other than quoted prices included within Level 1. Level 2 inputs are observable either directly or indirectly. These inputs might include quoted prices for similar assets or liabilities in active markets, quoted prices for

identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.) or inputs that are derived
principally from or corroborated by market data by correlation or other means.

Level 3: Inputs are unobservable inputs for an asset or liability that reflect an entity's own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. These inputs are used to determine

fair value only when observable inputs are not available.

Earnings per Common Share

Basic earnings per share ("EPS") is computed by dividing net income by the weighted average number of shares of common stock outstanding for the applicable period, exclusive of Treasury shares, unearned ESOP shares and

unvested shares of restricted stock. Diluted EPS is calculated after adjusting the denominator of the basic EPS calculation for the effect of all

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

potential dilutive common shares outstanding during the period. The dilutive effects of options and unvested restricted stock awards are computed using the "treasury stock" method. Management evaluated the "two class" method and
concluded that the method did not apply to the Company's EPS calculation.

Income Taxes

Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement

carrying amounts of existing assets and liabilities and their respective tax bases.

Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets

and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Tax positions that are more likely than not to be sustained upon a tax examination are recognized in the Company's financial statements to the extent that the benefit is greater than 50% likely of being recognized. Interest resulting

from underpayment of income taxes is classified as income tax expense in the first period the interest would begin accruing according to the provision of the relevant tax law. Penalties resulting from underpayment of income taxes are
classified as income tax expense in the period for which the Company claims or expects to claim an uncertain tax position or in the period in which the Company's judgment changes regarding an uncertain tax position.

Treasury Stock

Any shares repurchased under the Company's share repurchase programs were purchased in open-market transactions and are held as treasury stock. Treasury stock also consists of common stock withheld to satisfy federal, state and

local income tax withholding requirements for employee restricted stock awards upon vesting. All treasury stock is held at cost.

Segment Reporting

An operating segment is defined as a component of a business for which separate financial information is available that is evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and evaluate

performance. The Company is a bank holding company with subsidiaries engaged in the business of banking and activities closely related to banking. The Company's banking business provided substantially all of its total revenues and
pre-tax income in 2020, 2019 and 2018. Therefore, the Company has determined to be a single segment.

Recent Accounting Pronouncements

Accounting Standards Adopted in 2020

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 replaced the previous GAAP method of
calculating credit losses. Previously, GAAP required the use of the incurred loss methodology, which used a higher threshold at which probable losses were calculated and recorded. ASU 2016-13 requires the use of an expected loss
methodology, referred to as the current expected credit loss (“CECL”) methodology, which requires institutions to account for lifetime expected losses that previously would not have been part of the calculation. The CECL methodology
incorporates future forecasting in addition to historical and current measures. The Company adopted the above mentioned ASU as of January 1, 2020. The standard had an impact on our consolidated balance sheet. On adoption, the
Company recognized an increase in the allowance for loan and lease losses of $6.6 million, and an increase in the reserve for unfunded commitments of $8.9 million. The net, after-tax impact of the increase in the allowance for loan and
lease losses and reserve for unfunded commitments was a decrease to retained earnings of $11.5 million shown in the Consolidated Statements of Changes in Stockholders’ Equity. Additional details can be found in Notes 4, 6 and 7.
In August 2018, FASB issued ASU 2018-13, "Fair Value Measurement (Topic 820)" ("ASU 2018-13"), to modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, based on the concepts set
forth in the Concepts Statement, including the consideration of costs and benefits. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Certain provisions under ASU
2018-13 required prospective application, while other provisions required retrospective application to all periods presented in the consolidated financial statements upon adoption. The Company adopted the provisions of ASU 2018-13
effective January 1, 2020 and the adoption did not have a material impact on the Company’s consolidated financial statements.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

In August 2018, FASB issued ASU 2018-14, "Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20)"("ASU 2018-14"), to modify the disclosure requirements for employers that sponsor defined

benefit pension or other postretirement plans. ASU 2018-14 is effective for fiscal years beginning after December 15, 2020, for public business entities and for fiscal years beginning after December 15, 2021, for all other entities. Early
adoption is permitted. Management has evaluated ASU 2018-14 and as of December 31, 2020, the Company has adopted ASU 2018-14 and determined the impact to be immaterial.

(2) Acquisitions and Mergers

First Ipswich Bank

On February 15, 2020, the merger of First Ipswich Bank with and into Brookline Bank was completed. First Ipswich Bank was already a wholly-owned subsidiary of the Company, therefore the merger qualified as a tax-free

reorganization for federal income tax purposes and there was minimal impact to customers. All of First Ipswich Bank's six branch locations were retained and converted to Brookline Bank branches.

(3) Cash, Cash Equivalents and Short-Term Investments

The Banks are required to maintain average reserve balances with the FRB based upon a percentage of certain of the Banks' deposits. As of December 31, 2020, there was no average amount required to be held before a credit for

vault cash compared to 2019, when the amount was $10.5 million. Aggregate reserve balances included in cash and cash equivalents were $410.1 million and $53.0 million, respectively, as of December 31, 2020 and 2019.

Short-term investments are summarized as follows:

FRB interest bearing reserve
FHLB overnight deposits

Total short-term investments

Short-term investments are stated at cost which approximates market value.

F-23

At December 31,

2020

2019

(In Thousands)

398,202 
646 
398,848 

$

$

39,964 
4,237 
44,201 

$

$

 
 
 
Table of Contents

(4) Investment Securities

Adoption of Topic 326

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Effective January 1, 2020, the Company adopted the provisions of ASU 2016-13 using the modified retrospective method. Therefore, prior period comparative information has not been adjusted and continues to be reported under GAAP
in effect prior to the adoption of Topic 326. As of January 1, 2020, the Company recognized a de minimis ACL on available-for-sale debt securities, which was no longer required as of December 31, 2020.

The following tables set forth investment securities available-for-sale, held-to-maturity and equity securities held-for-trading at the dates indicated:

Investment securities available-for-sale:

GSE debentures
GSE CMOs
GSE MBSs
Corporate debt obligations
U.S. Treasury bonds
Foreign government obligations

Total investment securities available-for-sale

Equity securities held-for-trading

Investment securities available-for-sale:

GSE debentures
GSE CMOs
GSE MBSs
SBA commercial loan asset-backed securities
Corporate debt obligations
U.S. Treasury bonds

Total investment securities available-for-sale

Investment securities held-to-maturity:

GSE debentures
GSEs MBSs
Municipal obligations
Foreign government obligations
Total investment securities held-to-maturity

Equity securities held for trading

Amortized 
Cost

At December 31, 2020

Gross 
Unrealized 
Gains

Gross 
Unrealized 
Losses

(In Thousands)

Estimated 
Fair Value

273,820 
44,937 
312,658 
22,299 
70,339 
500 
724,553 

$

$

5,455 
1,103 
10,956 
1,168 
3,318 
— 
22,000 

$

$

Amortized 
Cost

At December 31, 2019

Gross 
Unrealized 
Gains

Gross 
Unrealized 
Losses

(In Thousands)

182,922 
87,001 
153,049 
34 
28,484 
44,675 
496,165 

$

$

31,228  $

9,360 
45,692 
500 

86,780  $

2,939 
22 
797 
— 
502 
338 
4,598 

113 
— 
822 
— 

935 

$

$

$

$

630 
12 
5 
— 
80 
4 
731 

58 
1,091 
503 
— 
— 
116 
1,768 

51 
81 
— 
22 

154 

$

$
$

$

$

$

$

$

278,645 
46,028 
323,609 
23,467 
73,577 
496 
745,822 
526 

Estimated 
Fair Value

185,803 
85,932 
153,343 
34 
28,986 
44,897 
498,995 

31,290 
9,279 
46,514 
478 
87,561 

3,581 

$

$

$

$

$

$

As of December 31, 2020, the fair value of all investment securities available-for-sale was $745.8 million, with net unrealized gains of $21.3 million, compared to a fair value of $499.0 million and net unrealized gains of $2.8
million as of December 31, 2019. As of December 31, 2020, $86.9 million, or 11.7% of the portfolio, had gross unrealized losses of $0.7 million, compared to $205.6 million, or 41.2% of the portfolio, with gross unrealized losses of $1.8
million as of December 31, 2019.

F-24

 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Effective March 31, 2020, all investment securities classified as held-to-maturity were reclassified as available for sale to prudently reflect the ability and intent to not hold these assets to maturity due to the economic uncertainty
created by the COVID-19 pandemic. As of December 31, 2019, the fair value of investment securities held-to-maturity was $87.6 million with net unrealized gains of $0.8 million. As of December 31, 2019, $22.3 million, or 25.5% of the
portfolio had gross unrealized losses of $0.2 million.

As of December 31, 2020, the Company reported a fair value of $0.5 million of equity securities held-for-trading. As of December 31, 2019, the Company reported a fair value of $3.6 million of equity securities held-for-trading.

Investment Securities as Collateral

As of December 31, 2020 and 2019, respectively, $448.7 million and $433.6 million of investment securities were pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits ("TT&L"); swap

agreements; and FHLBB borrowings. The Banks did not have any outstanding FRB borrowings as of December 31, 2020 and 2019.

Allowance for Credit Losses-Available-for-Sale Securities

For available-for-sale securities in an unrealized loss position, management first assesses whether (i) the Company intends to sell the security, or (ii) it is more likely than not that the Company will be required to sell the security

before recovery of its amortized cost basis. If either criterion is met, any previously recognized allowances are charged-off and the security's amortized cost is written down to fair value through income. If neither criterion is met, the
security is evaluated to determine whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to
the rating of the security by a rating agency and any adverse conditions specifically related to the security, among other factors.

If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be

collected is less than the amortized cost basis, an allowance for credit loss is recorded, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an ACL is recognized
in other comprehensive income. Adjustments to the allowance are reported as a component of credit loss expense. Available-for-sale securities are charged-off against the allowance or, in the absence of any allowance, written down
through income when deemed uncollectible or when either of the aforementioned criteria regarding intent or requirement to sell is met. The Company has made the accounting policy election to exclude accrued interest receivable on
available-for-sale securities from the estimate of credit losses. Accrued interest receivables associated with debt securities available-for-sale totaled $2.6 million and $2.0 million, respectively, as of December 31, 2020 and 2019.

A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a debt security

placed on nonaccrual is reversed against interest income. There were no debt securities on nonaccrual status and therefore there was no accrued interest related to debt securities reversed against interest income for the year
ended December 31, 2020 and 2019.

Prior to the implementation of ASU 2016-13 on January 1, 2020, Management evaluated securities for other-than-temporary impairment ("OTTI") on a periodic basis. Factors considered in determining whether an impairment was
OTTI included: (1) the length of time and the extent to which the fair value had been less than amortized cost, (2) projected future cash flows, (3) the financial condition and near-term prospects of the issuers, and (4) the intent and ability
of the Company to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value. The Company did not identify OTTI in their impairment evaluation in the years ended December 31, 2019 and 2018.

F-25

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Assessment for Available for Sale Securities for Impairment

Investment securities as of December 31, 2020 and 2019 that have been in a continuous unrealized loss position for less than twelve months or twelve months or longer are as follows: 

Less than 
Twelve Months

At December 31, 2020
Twelve Months 
or Longer

Total

Estimated 

Fair Value

Unrealized 
Losses

Estimated 

Fair Value

Unrealized 
Losses

Estimated 

Fair Value

Unrealized 
Losses

Investment securities available-for-sale:

GSE debentures
GSE CMOs
GSE MBSs
U.S. Treasury bonds
Foreign government obligations

Temporarily impaired investment securities available-for-sale

Total temporarily impaired investment securities

$

$

72,745 
832 
2,102 
9,750 
— 
85,429 
85,429 

$

$

630 
7 
5 
80 
— 
722 
722 

$

$

(In Thousands)

— 
872 
97 
— 
496 
1,465 
1,465 

$

$

— 
5 
— 
— 
4 
9 
9 

$

$

Less than 
Twelve Months

At December 31, 2019
Twelve Months 
or Longer

72,745 
1,704 
2,199 
9,750 
496 
86,894 
86,894 

$

$

Total

Investment securities available-for-sale:

GSE debentures
GSE CMOs
GSE MBSs

SBA commercial loan asset-backed securities

U.S. Treasury bonds

Temporarily impaired investment securities available-for-sale

Investment securities held-to-maturity:

GSE debentures
GSEs MBSs
Municipal obligations
Foreign government obligations

Temporarily impaired investment securities held-to-maturity

Total temporarily impaired investment securities

Estimated 
Fair Value

Unrealized 
Losses

Estimated 
Fair Value

Unrealized 
Losses

Estimated 
Fair Value

Unrealized 
Losses

$

$

10,965  $
28,659 
42,046 
— 
25,754 
107,424 

8,714 
— 
710 
478 
9,902 
117,326 

$

58 
217 
115 
— 
116 
506 

30 
— 
— 
22 
52 
558 

$

$

(In Thousands)

— 
55,885 
42,257 
33 
— 
98,175 

2,977 
9,257 
205 
— 
12,439 
110,614 

$

$

— 
874 
388 
— 
— 
1,262 

21 
81 
— 
— 
102 
1,364 

$

$

10,965 
84,544 
84,303 
33 
25,754 
205,599 

11,691 
9,257 
915 
478 
22,341 
227,940 

$

$

The Company performs regular analysis on the investment securities available-for-sale portfolio to determine whether a decline in fair value indicates that an investment security is impaired. In making these impairment

determinations, management considers, among other factors, projected future cash flows; credit subordination and the creditworthiness; capital adequacy and near-term prospects of the issuers.

630 
12 
5 
80 
4 
731 
731 

58 
1,091 
503 
— 
116 
1,768 

51 
81 
— 
22 
154 
1,922 

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Management also considers the Company's capital adequacy, interest-rate risk, liquidity and business plans in assessing whether it is more likely than not that the Company will sell or be required to sell the investment securities
before recovery. If the Company determines that a security investment is impaired and that it is more likely than not that the Company will not sell or be required to sell the investment security before recovery of its amortized cost, the
credit portion of the impairment loss is recognized in the Company's consolidated statement of income and the noncredit portion is recognized in accumulated other comprehensive income. The credit portion of the impairment represents
the difference between the amortized cost and the present value of the expected future cash flows of the investment security. If the Company determines that a security is impaired and it is more likely than not that it will sell or be required
to sell the investment security before recovery of its amortized cost, the entire difference between the amortized cost and the fair value of the security will be recognized in the Company's consolidated statement of income.

Investment Securities Available-For-Sale Impairment Analysis

The following discussion summarizes, by investment security type, the basis for evaluating if the applicable investment securities within the Company’s available-for-sale portfolio were impaired as of December 31, 2020. The
Company has determined it is more likely than not that the Company will not sell or be required to sell the investment securities before recovery of its amortized cost. The Company's ability and intent to hold these investment securities
until recovery is supported by the Company's strong capital and liquidity positions as well as its historically low portfolio turnover. As such, management has determined that the investment securities are not impaired as of December 31,
2020. If market conditions for investment securities worsen or the creditworthiness of the underlying issuers deteriorates, it is possible that the Company may recognize additional impairment in future periods.

U.S. Government-Sponsored Enterprises

The Company invests in securities issued by U.S. Government-sponsored enterprises ("GSEs"), including GSE debentures, mortgage-backed securities ("MBSs"), and collateralized mortgage obligations ("CMOs"). GSE securities
include obligations issued by the Federal National Mortgage Association ("FNMA"), the Federal Home Loan Mortgage Corporation ("FHLMC"), the Government National Mortgage Association ("GNMA"), the FHLBB and the Federal
Farm Credit Bank. As of December 31, 2020, the Company held GNMA MBSs and CMOs, and Small Business Administration ("SBA") commercial loan asset-backed securities in our available-for-sale portfolio with an estimated fair
value of $7.3 million were backed explicitly by the full faith and credit of the U.S. Government, compared to $17.4 million as of December 31, 2019.

As of December 31, 2020, the Company owned 54 GSE debentures with a total fair value of $278.6 million, and a net unrealized gain of $4.8 million. As of December 31, 2019, the Company held 60 GSE debentures with a total fair

value of $185.8 million, and a net unrealized gain of $2.9 million. As of December 31, 2020, 7 of the 54 securities in this portfolio were in an unrealized loss position. As of December 31, 2019, 5 of the 60 securities in this portfolio were
in an unrealized loss position. All securities are performing and backed by the implicit (FHLB/FNMA/FHLMC) or explicit (GNMA/SBA) guarantee of the U.S. Government. For the year ended December 31, 2020, the Company
purchased $208.9 million GSE debentures, compared to the year ended December 31, 2019, when the Company did not purchase any GSE debentures. For the year ended December 31, 2020, the Company transferred 9 held-to-maturity
GSE debentures with a total fair value of $25.5 million to the available-for-sale portfolio,

As of December 31, 2020, the Company owned 33 GSE CMOs with a total fair value of $46.0 million and a net unrealized gain of $1.1 million. As of December 31, 2019, the Company held 61 GSE CMOs with a total fair value of

$85.9 million with a net unrealized loss of $1.1 million. As of December 31, 2020, 2 of the 33 securities in this portfolio were in an unrealized loss position. As of December 31, 2019, 45 of the 61 securities in this portfolio were in an
unrealized loss position. All securities are performing and backed by the implicit (FHLB/FNMA/FHLMC) or explicit (GNMA) guarantee of the U.S. Government. For the years ended December 31, 2020 and 2019, the Company did not
purchase any GSE CMOs.

As of December 31, 2020, the Company owned 140 GSE MBSs with a total fair value of $323.6 million and a net unrealized gain of $11.0 million. As of December 31, 2019, the Company held 150 GSE MBSs with a total fair value
of $153.3 million with a net unrealized gain of $0.3 million. As of December 31, 2020, 17 of the 140 securities in this portfolio were in an unrealized loss position. As of December 31, 2019, 48 of the 150 securities in this portfolio were in
an unrealized loss position. All securities are performing and backed by the implicit (FHLB/FNMA/FHLMC) or explicit (GNMA) guarantee of the U.S. Government. For the year ended December 31, 2020 and 2019, the Company
purchased $258.7 million and $19.6 million, respectively, of GSE MBSs. For the year ended December 31, 2020, the Company transferred 8 held-to-maturity GSE MBSs with a total fair value of $9.0 million to the available-for-sale
portfolio.

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Table of Contents

SBA Commercial Loan Asset-Backed

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

As of December 31, 2020, the Company did not own any SBA securities. As of December 31, 2019, the Company owned 4 SBA securities with a total fair value of $34.0 thousand which approximated amortized cost. As of

December 31, 2019, 3 of the 4 securities in this portfolio were in an unrealized loss position. As of December 31, 2019, all securities are performing and backed by the explicit guarantee of the U.S. Government. For the years ended
December 31, 2020 and 2019, the Company did not purchase any SBA securities.

Corporate Obligations

The Company may invest in high-quality corporate obligations to provide portfolio diversification and improve the overall yield on the portfolio. As of December 31, 2020, the Company owned 6 corporate obligation securities with a
total fair value of $23.5 million and a net unrealized gain of $1.2 million. As of December 31, 2019, the Company held 8 corporate obligation securities with a total fair value of $29.0 million and a net unrealized gain of $0.5 million. As of
December 31, 2020 and 2019, none of the securities in this portfolio were in an unrealized loss position. Full collection of the obligations is expected because the financial condition of the issuers is sound, they have not defaulted on
scheduled payments, the obligations are rated investment grade, and the Company has the ability and intent to hold the obligations for a period of time to recover the amortized cost. For the years ended December 31, 2020 and 2019, the
Company did not purchase any corporate obligations. For the year ended December 31, 2020, the Company transferred 1 held-to-maturity corporate obligation security with a total fair value of $0.5 million to the available-for-sale
portfolio.

U.S. Treasury Bonds

The Company invests in securities issued by the U.S. government. As of December 31, 2020, the Company owned 12 U.S. Treasury bonds with a total fair value of $73.6 million and a net unrealized gain of $3.2 million. As of
December 31, 2019, the Company owned 9 U.S. Treasury bonds with a total fair value of $44.9 million and a net unrealized gain of $0.2 million. As of December 31, 2020, 1 of the 12 securities in this portfolio were in an unrealized loss
position. As of December 31, 2019, 5 of the 9 securities in this portfolio were in unrealized loss positions. For the years ended December 31, 2020 and 2019, the Company purchased $35.9 million and $30.8 million, respectively, of U.S.
Treasury bonds.

Municipal Obligations

As of December 31, 2020, the Company did not hold any municipal obligation securities. As of December 31, 2019, the Company Owned 93 municipal obligation securities classified as held-to-maturity with a total fair value and
total amortized cost of $46.5 million and $45.7 million, respectively. As of December 31, 2019, 6 of the 93 securities in this portfolio were in an unrealized loss position. For the year ended December 31, 2019, the Company purchased a
total of $0.9 million of municipal obligations.

Foreign Government Obligations

As of December 31, 2020 and 2019, the Company owned 1 foreign government obligation security with a fair value and amortized cost of $0.5 million. During the year ended December 31, 2019, the Company repurchased the
foreign government obligation security that matured during the first quarter of 2019. As of December 31, 2020 and 2019, the security was in an unrealized loss position. During the year ended December 31, 2020 and 2019, the Company
did not purchase any additional foreign government obligation securities.

Equity Securities Held-for-Trading

From time to time, the Company will invest in equity securities held-for-trading. As of December 31, 2020 and 2019, the Company owned equity securities held-for-trading with a fair value of $0.5 million and $3.6 million,

respectively.

F-28

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Portfolio Maturities

The final stated maturities of the debt securities are as follows for the periods indicated:

Investment securities available-for-sale:

Within 1 year
After 1 year through 5 years
After 5 years through 10 years
Over 10 years

Investment securities held-to-maturity:

Within 1 year
After 1 year through 5 years
After 5 years through 10 years
Over 10 years

Amortized 
Cost

2020

Estimated 
Fair Value

$

$

$

$

31,633  $
146,274 
222,271 
324,375 
724,553  $

— 
— 
— 
— 
— 

$

$

32,013 
153,262 
225,568 
334,979 
745,822 

— 
— 
— 
— 
— 

At December 31,

Weighted 
Average 
Rate

Amortized 
Cost

(Dollars in Thousands)

2019

Estimated 
Fair Value

2.02%
2.22%
1.43%
1.86%

1.81%

—%
—%
—%
—%

—%

$

$

$

$

12,797  $
217,569 
93,805 
171,994 
496,165 

$

6,366  $
63,898 
7,177 
9,339 
86,780  $

12,804 
220,757 
94,212 
171,222 
498,995 

6,381 
64,559 
7,364 
9,257 
87,561 

Weighted 
Average 
Rate

1.76%
2.19%
2.04%
2.12%

2.13%

1.33%
1.81%
1.79%
1.90%

1.82%

Actual maturities of debt securities will differ from those presented above since certain obligations amortize and may also provide the issuer the right to call or prepay the obligation prior to scheduled maturity without penalty. MBSs

and CMOs are included above based on their final stated maturities; the actual maturities, however, may occur earlier due to anticipated prepayments and stated amortization of cash flows.

As of December 31, 2020, issuers of debt securities with an estimated fair value of $90.8 million had the right to call or prepay the obligations. Of the $90.8 million, approximately $12.9 million matures in 1-5 years, $68.1 million
matures in 6 - 10 years, and $9.8 million mature after ten years. As of December 31, 2019, issuers of debt securities with an estimated fair value of approximately $37.6 million had the right to call or prepay the obligations. Of the $37.6
million, approximately $3.0 million mature within 1 year, $34.6 million mature in 1-5 years, and none mature after five years.

Security Sales

The proceeds from the sale of investment securities available-for-sale and equity securities held-for-trading were $143.2 million during the year ended December 31, 2020. This compares to $1.2 million securities sold during the

year ended December 31, 2019.

Proceeds from sales of investment securities available-for-sale and equity securities held-for-trading

Gross gains from sales
Gross losses from sales

Gain on sales of securities, net

Year Ended December 31,

2020

2019

(In Thousands)
$

143,229 

3,423 
(1,473)
1,950  $

1,212 

— 
(232)
(232)

$

$

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(5) Restricted Equity Securities

Investments in the restricted equity securities of various entities are as follows:

FHLBB stock
FRB stock
Other restricted equity securities

At December 31,

2020

2019

(In Thousands)

31,293 
18,241 
252 
49,786 

$

$

35,482 
18,084 
252 
53,818 

$

$

The Company invests in the stock of FHLBB as one of the requirements to borrow. As of December 31, 2020 and 2019, FHLBB stock is recorded at its carrying value, which is equal to cost and which management believes

approximates its fair value. The FHLBB stated that it remained in compliance with all regulatory capital ratios as of December 31, 2020 and was classified as "adequately capitalized" by its regulator, based on the FHLBB's financial
information as of September 30, 2020. The FHLBB paid a dividend to member banks at an annualized rate of 464 basis points in 2020. The FHLBB decreased its dividend from 546 basis points in the first quarter of 2020 to 376 basis
points in the fourth quarter of 2020. As of December 31, 2020, the Company's investment in FHLBB stock exceeded its required investment which provides for additional borrowing capacity.

The Company invests in the stock of the Federal Reserve Bank of Boston as required by its the Banks' membership in the Federal Reserve system. As of December 31, 2020 and 2019, Federal Reserve Bank of Boston stock is

recorded at its carrying value, which is equal to cost and which management believes approximates its fair value.

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Table of Contents

(6) Loans and Leases

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following table presents the amortized cost of loans and leases and weighted average coupon rates for the loan and lease portfolios at the dates indicated:

Commercial real estate loans:

Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans

Commercial loans and leases:

Commercial(1)
Equipment financing
Condominium association

Total commercial loans and leases

Consumer loans:

Residential mortgage
Home equity
Other consumer

Total consumer loans

Total loans and leases

At December 31, 2020

At December 31, 2019

Balance

Weighted 
Average 
Coupon

Balance

Weighted 
Average 
Coupon

(Dollars In Thousands)

$

$

2,578,773 
1,013,432 
231,621 
3,823,826 

1,131,668 
1,092,461 
50,770 
2,274,899 

791,317 
346,652 
32,859 
1,170,828 
7,269,553 

3.58  % $
3.53  %
3.49  %
3.56  %

2.55  %
7.26  %
4.55  %
4.86  %

3.74  %
3.26  %
3.04  %
3.58  %
3.97  % $

2,491,011 
932,163 
246,048 
3,669,222 

729,502 
1,052,408 
56,838 
1,838,748 

814,245 
376,819 
38,782 
1,229,846 
6,737,816 

4.33  %
4.20  %
5.09  %
4.34  %

4.66  %
7.71  %
4.84  %
6.41  %

4.10  %
4.46  %
4.48  %
4.22  %

4.88  %

(1) Including $489,216 of PPP loans as of December 31, 2020. These loans are fully guaranteed by the SBA and therefore, have not been reserved for in the allowance for credit losses as of December 31, 2020.

Accrued interest on loans and leases, which were excluded from the amortized cost of loans and leases totaled $20.5 million and $17.4 million at December 31, 2020 and December 31, 2019, respectively, and were included in other

assets in the accompanying consolidated balance sheets.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Commercial real estate loans:

Commercial real estate
Multi-family mortgage
Construction

Total commercial real estate loans

Commercial loans and leases:

Commercial
Equipment financing
Condominium association

Total commercial loans and leases

Consumer loans:

Residential mortgage
Home equity
Other consumer

Total consumer loans

Total loans and leases

Originated

Weighted 
Average 
Coupon

Balance

At December 31, 2019
Acquired

Balance

Weighted 
Average 
Coupon

(Dollars In Thousands)

Total

Weighted 
Average 
Coupon

Balance

$

$

2,400,037 
896,482 
239,015 
3,535,534 

713,875 
1,049,997 
56,838 
1,820,710 

711,522 
343,247 
38,674 
1,093,443 
6,449,687 

4.32  % $
4.18  %
5.04  %
4.33  %

4.65  %
7.71  %
4.84  %
6.42  %

4.06  %
4.41  %
4.44  %
4.18  %
4.89  % $

90,974 
35,681 
7,033 
133,688 

15,627 
2,411 
— 
18,038 

102,723 
33,572 
108 
136,403 
288,129 

4.63 % $
4.59 %
6.73 %
4.73 %

5.14 %
5.98 %
— %
5.25 %

4.40 %
4.93 %
17.91 %
4.54 %
4.67 % $

2,491,011 
932,163 
246,048 
3,669,222 

729,502 
1,052,408 
56,838 
1,838,748 

814,245 
376,819 
38,782 
1,229,846 
6,737,816 

4.33  %
4.20  %
5.09  %
4.34  %

4.66  %
7.71  %
4.84  %
6.41  %

4.10  %
4.46  %
4.48  %
4.22  %

4.88  %

The net unamortized deferred loan origination fees and costs included in total loans and leases were $4.1 million and $15.7 million as of December 31, 2020 and 2019, respectively.

The Banks and their subsidiaries lend primarily in all New England states, with the exception of equipment financing, 27.8% of which is in the greater New York and New Jersey metropolitan area and 72.2% of which is in other

areas in the United States of America as of December 31, 2020.

Accretable Yield for the Acquired Loan Portfolio

On a quarterly basis prior to the adoption of ASU 2016-13, management reforecasted the expected cash flows for acquired ASC 310-30 loans, and took into account prepayment speeds, probability of default and loss given defaults.
Management compared cash flow projections per the reforecast to the original cash flow projections and determined whether any reduction in cash flow expectations were due to deterioration, or if the change in cash flow expectation was
related to noncredit events. This cash flow analysis was used to evaluate the need for a provision for loan and lease losses and/or prospective yield adjustments for the acquired portfolio. Upon adoption of ASU 2016-13, the Company did
not reassess whether previously recognized purchased credit impaired loans accounted for under prior accounting guidance met the criteria of a purchased credit deteriorated ("PCD") loan as of the date of adoption. PCD loans are initially
recorded at fair value along with an ACL determined using the same methodology as originated loans. The sum of the loan's purchase price and ACL becomes its initial amortized cost basis. The difference between the initial amortized
cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the ACL are recorded through provision for credit losses. As of
December 31, 2020, there were no PCD loans in the Company's portfolios.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following table summarizes activity in the accretable yield for the acquired loan portfolio for the periods indicated: 

Balance at beginning of year
Accretion
Reclassification from nonaccretable difference as a result from changes in expected cash flows
Balance at end of year

2019

2018

(Dollars In Thousands)

7,905 
(3,769)
1,086 
5,222 

$

10,522 
(4,117)
1,500 
7,905 

$

During the year ended December 31, 2019, accretable yield adjustments totaling $1.1 million were made for certain loan pools, which were subject to continued re-assessment and will be recognized over the remaining lives of those pools.
As of December 31, 2019, the accretable yield was fully accreted.

Related Party Loans

The Banks' authority to extend credit to their respective directors and executive officers, as well as to entities controlled by such persons, is currently governed by the requirements of the Sarbanes-Oxley Act and Regulation O of the FRB.
Among other things, these provisions require that extensions of credit to insiders (1) be made on terms that are substantially the same as, and follow credit underwriting procedures that are not less stringent than, those prevailing for
comparable transactions with unaffiliated persons and that do not involve more than the normal risk of repayment or present other unfavorable features; and (2) not exceed certain limitations on the amount of credit extended to such
persons, individually and in the aggregate, which limits are based, in part, on the amount of the Banks' capital. In addition, the extensions of credit to insiders must be approved by the applicable Bank's Board of Directors.

The following table summarizes the change in the total amounts of loans and advances to directors, executive officers
and their affiliates for the periods indicated. All loans were performing as of December 31, 2020. 

Balance at beginning of year
New loans granted during the year
Loans reclassified as insider loans
Advances on lines of credit
Repayments
Balance at end of year

Year Ended December 31,

2020

2019

(Dollars In Thousands)

$

$

70,400 
11,003 
5,465 
61,089 
(69,756)
78,201 

$

$

46,771 
34 
16,800 
8,652 
(1,857)
70,400 

Unfunded commitments on extensions of credit to related parties totaled $15.0 million and $12.8 million as of December 31, 2020 and 2019, respectively. The new loans granted during the year ending December 31, 2020 were

$11.0 million, of which $9.6 million were PPP loans.

Loans and Leases Pledged as Collateral

As of December 31, 2020 and 2019, there were $3.5 billion and $3.0 billion, respectively, of loans and leases pledged as collateral for repurchase agreements; municipal deposits; treasury, tax and loan deposits; swap agreements;

and FHLBB borrowings. The Banks did not have any outstanding FRB borrowings as of December 31, 2020 and 2019.

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(7) Allowance for Credit Losses

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following tables present the changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment for the periods indicated:

Commercial 
Real Estate

Commercial

Consumer

Total

Year Ended December 31, 2020

Balance at December 31, 2019
Adoption of ASU 2016-13 (CECL)
Balance at beginning of period, adjusted
Charge-offs
Recoveries
Provision for loan and lease losses excluding unfunded commitments

Balance at December 31, 2020

Balance at December 31, 2018
Charge-offs
Recoveries

Provision for loan and lease losses

Balance at December 31, 2019

Balance at December 31, 2017
Charge-offs
Recoveries

(Credit) provision for loan and lease losses

Balance at December 31, 2018

$

$

$

$

$

$

30,285 
11,694 
41,979 
(3,514)
94 
41,573 
80,132 

28,187 
— 
— 
2,098 
30,285 

27,112 
(103)
— 
1,178 
28,187 

$

$

$

$

$

$

Commercial 
Real Estate

Commercial 
Real Estate

$

(In Thousands)
24,826 
(2,672)
22,154 
(11,113)
1,407 
17,050 
29,498 

$

Year Ended December 31, 2019

Commercial

Consumer

$

(In Thousands)
25,283 
(8,911)
1,688 
6,766 
24,826 

$

Year Ended December 31, 2018

Commercial

Consumer

$

(In Thousands)
26,333 
(6,585)
2,287 
3,248 
25,283 

$

5,971 
(2,390)
3,581 
(36)
201 
1,003 
4,749 

5,222 
(127)
179 
697 
5,971 

5,147 
(540)
290 
325 
5,222 

$

$

$

$

$

$

61,082 
6,632 
67,714 
(14,663)
1,702 
59,626 
114,379 

58,692 
(9,038)
1,867 
9,561 
61,082 

58,592 
(7,228)
2,577 
4,751 
58,692 

Total

Total

The allowance for credit losses for unfunded credit commitments, which is included in other liabilities, was $13.1 million and $1.9 million at December 31, 2020 and December 31, 2019, respectively. The increase in allowance for
unfunded commitments was primarily driven by the adoption of CECL and the effect of the latest available economic forecast which incorporates the impact of the COVID-19 pandemic. No credit commitments were charged off against
the liability account in the year ended December 31, 2020 and 2019.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Provision for Credit Losses

The provisions for credit losses are set forth below for the periods indicated:

Provision for loan and lease losses:

Commercial real estate
Commercial
Consumer

Total provision for loan and lease losses

Unfunded credit commitments

Total provision for credit losses

Allowance for Credit Losses Methodology

2020

Year Ended December 31,
2019
(In Thousands)

2018

$

$

41,573  $
17,050 
1,003 
59,626 
2,260 
61,886  $

2,098 
6,766 
697 
9,561 
22 
9,583 

$

$

1,178 
3,248 
325 
4,751 
200 
4,951 

Management has established a methodology to determine the adequacy of the allowance for credit losses that assesses the risks and losses expected on the loan and lease portfolio and unfunded commitments. Additions to the
allowance for credit losses are made by charges to the provision for credit losses. Losses on loans and leases are charged off against the allowance when all or a portion of a loan or lease is considered uncollectible. Subsequent recoveries
on loans previously charged off, if any, are credited to the allowance when realized.

To calculate the allowance for loans collectively evaluated, management uses models developed by a third party. The models include: Commercial real estate ("CRE"), Commercial and industrial ("C&I"), and Retail lifetime loss rate

models calculate the expected losses over the life of the loan based on exposure at default loan attributes and reasonable, supportable economic forecasts. The exposure at default considers the current unpaid balance, prepayment
assumptions and utilization of expected utilization assumptions. The expected loss estimates for two small commercial portfolios and a runoff auto portfolio are based on historical loss rates.

Key assumptions used in the models include portfolio segmentation, prepayments, and the expected utilization of unfunded commitments, among others. The portfolios are segmented by loan level attributes such as loan type, loan

size, date of origination, and delinquency status to create homogenous loan pools. Pool level metrics are calculated and loss rates are subsequently applied to the pools as the loans have like characteristics. Prepayment assumptions are
embedded within the models and are based on the same data used for model development and incorporate adjustments for reasonable and supportable forecasts. Model development data and developmental time periods vary by model, but
all use at least ten years of historical data and capture at least one recessionary period. Expected utilization is based on current utilization and a loan equivalency ("LEQ") factor. LEQ varies by current utilization and provides a reasonable
estimate of expected draws and borrower behavior. Assumptions and model inputs are reviewed in accordance with model monitoring practices and as information becomes available.

The ACL estimate incorporates reasonable and supportable forecasts of various macro-economic variables over the remaining life of loans and leases. The development of the reasonable and supportable forecast assume each macro-

economic variable will revert to long-term expectations, with reversion characteristics unique to specific economic indicators and forecasts. Reversion towards long-term expectations generally begins two to three years from the forecast
start date and largely completes within the first five years. Because the reasonable and supportable economic forecasts used in the models are mean reverting, the models are therefore considered to be implicitly mean reverting.

Management elected to use multiple economic forecasts in determining the reserve to account for economic uncertainty. The forecasts include various projections of Gross Domestic Product ("GDP"), interest rates, property price

indices, and employment measures. Scenario weighting and model parameters are reviewed for each calculation and are subject to change. The December 31, 2020 forecasts reflect the immediate and longer-term effects of the COVID-19
pandemic as well as the associated policies and fiscal support provided by local and national authorities.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The CRE lifetime loss rate, C&I lifetime loss rate, and Retail lifetime loss rate models were developed using the historical loss experience of all banks in the model’s developmental dataset. Banks in the model’s developmental
dataset may have different loss experiences due to geography and portfolio as well as variances in operational and underwriting procedures from the Company, and therefore, the Company calibrates expected losses using a scalar for each
model. Each scalar was calculated by examining the loss rates of peer banks that have similar operations and asset bases to the Company and comparing these peer group loss rates to the model results. Peer group loss rates were used in the
scalar calculation because management believes the peer group’s historical losses provide a better reflection of the Company’s current portfolio and operating procedures than the Company’s historical losses. Qualitative adjustments are
also applied to the results of the three loss rate models.

For December 31, 2020, management applied qualitative adjustments to the CRE lifetime loss rate, C&I lifetime loss rate, and Retail lifetime loss rate models. These adjustments addressed model limitations, were based on historical
loss patterns, and targeted specific risks within the certain portfolios. A general qualitative adjustment was applied to all models to account for general economic uncertainty by placing a greater probability on negative economic forecasts
as compared to previous quarters. Additional qualitative adjustments were applied to the Commercial, Multifamily, and commercial real estate portfolios based on the Company’s historical loss experience and the loss experience of the
Company’s peer group. High risk segments of the Eastern Funding and Macrolease portfolios also received additional qualitative adjustments based on recent loss history and expected liquidation values. These qualitative adjustments
resulted in additions to reserves for all portfolios, as compared to the model output.

Specific reserves are established for loans individually evaluated for impairment when amortized cost basis is greater than the discounted present value of expected future cash flows or, in the case of collateral-dependent loans, when

there is an excess of a loan's amortized cost basis over the fair value of its underlying collateral. When loans and leases do not share risk characteristics with other financial assets they are evaluated individually. Individually evaluated
loans are reviewed quarterly with adjustments made to the calculated reserve as necessary.

Beginning January 1, 2020, the Company implemented the CECL methodology to calculate the allowance for credit losses. As of January 1, 2020, the allowance for loan and lease losses increased by $6.6 million, and the reserve for

unfunded commitments increased by $8.9 million as a result of the adoption of CECL. Prior to January 1, 2020, the Company calculated the allowance for loan and lease losses using the incurred loss methodology.

The general allowance for loan and lease losses was $112.1 million as of December 31, 2020, compared to $59.3 million as of December 31, 2019. The increase in general allowance for loan and lease losses was driven by the effect

of the latest available economic forecast, inclusive of the COVID-19 pandemic and legislative initiatives on the Company's loan and lease portfolios.

The specific allowance for loan and lease losses was $2.3 million as of December 31, 2020, compared to $1.8 million as of December 31, 2019. The increase of $0.5 million was primarily driven by the increase in specific reserve on

an equipment financing relationship for $0.7 million, partially off set by the decrease in specific reserve due to the charge-offs on a commercial real estate relationship for $1.7 million.

As of December 31, 2020, management believes that the methodology for calculating the allowance is sound and that the allowance provides a reasonable basis for determining and reporting on expected losses over the lifetime of the

Company’s loan portfolio.

In 2019, Management used a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. For purposes of determining the allowance for loan and lease
losses, the Company had segmented certain loans and leases in the portfolio by product type into the following segments: (1) commercial real estate loans, (2) commercial loans and leases, (3) and consumer loans. Portfolio segments were
further disaggregated into classes based on the associated risks within the segments. Commercial real estate loans were divided into three classes: commercial real estate mortgage loans, multi-family mortgage loans, and construction
loans. Commercial loans and leases were divided into three classes: commercial loans which includes taxi medallion loans, equipment financing, and loans to condominium associations. Consumer loans were divided into three classes:
residential mortgage loans, home equity loans, and other consumer loans. A formula-based credit evaluation approach was applied to each group, coupled with an analysis of certain loans for impairment.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The general allowance related to loans collectively evaluated for impairment was determined using a formula-based approach utilizing the risk ratings of individual credits and loss factors derived from historic portfolio loss rates
over a lookback period, which included estimates of incurred losses over an estimated loss emergence period (“LEP”). The LEP was generated utilizing a charge-off look-back analysis which studied the time from the first indication of
elevated risk of repayment (or other early event indicating a problem) to eventual charge-off to support the LEP considered in the allowance calculation. This reserving methodology established the approximate number of months of LEP
that represented incurred losses for each portfolio. In addition to quantitative measures, relevant qualitative factors included, but were not limited to: (1) levels and trends in past due and impaired loans, (2) levels and trends in charge-offs,
(3) changes in underwriting standards, policy exceptions, and credit policy, (4) experience of lending management and staff, (5) economic trends, (6) industry conditions, (7) effects of changes in credit concentrations, (8) interest rate
environment, and (9) regulatory and other changes. The general allowance related to the acquired loans collectively evaluated for impairment was determined based upon the degree, if any, of deterioration in the pooled loans subsequent to
acquisition. The qualitative factors used in the determination were the same as those used for originated loans.

Credit Quality Assessment

At the time of loan origination, a rating is assigned based on the capacity to pay and general financial strength of the borrower, the value of assets pledged as collateral, and the evaluation of third party support such as a guarantor.

The Company periodically monitors the quality of the loan portfolio using all available information. The officer responsible for handling each loan is required to initiate changes to risk ratings when changes in facts and circumstances
occur that warrant an upgrade or downgrade in a loan rating. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as delinquent, impaired, nonperforming and/or put on nonaccrual
status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower's ability to repay the loan based on their current financial condition. If a
restructured loan meets certain criteria, it may be categorized as a troubled debt restructuring.

The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For all loans, the Company utilizes an eight-grade loan rating system, which assigns a risk rating to each borrower based on a
number of quantitative and qualitative factors associated with a loan transaction. Factors considered include industry and market conditions; position within the industry; earnings trends; operating cash flow; asset/liability values; debt
capacity; guarantor strength; management and controls; financial reporting; collateral; and other considerations. In addition, the Company's independent loan review group evaluates the credit quality and related risk ratings in all loan
portfolios. The results of these reviews are reported to the Risk Committee of the Board of Directors on a periodic basis and annually to the Board of Directors. For the consumer loans, the Company heavily relies on payment status for
calibrating credit risk.

The ratings categories used for assessing credit risk in the commercial real estate, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes are

defined as follows:

1 -4 Rating—Pass

Loan rating grades "1" through "4" are classified as "Pass," which indicates borrowers are performing in accordance with the terms of the loan and are less likely to result in loss due to the capacity of the borrower to pay and the

adequacy of the value of assets pledged as collateral.

5 Rating—Other Assets Especially Mentioned ("OAEM")

Borrowers exhibit potential credit weaknesses or downward trends deserving management's attention. If not checked or corrected, these trends will weaken the Company's asset and position. While potentially weak, currently these

borrowers are marginally acceptable; no loss of principal or interest is envisioned.

6 Rating—Substandard

Borrowers exhibit well defined weaknesses that jeopardize the orderly liquidation of debt. Substandard loans may be inadequately protected by the current net worth and paying capacity of the obligors or by the collateral pledged, if

any. Normal repayment from the borrower is in jeopardy. Although no loss of principal is envisioned, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral
coverage may be inadequate to cover the principal obligation.

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Table of Contents

7 Rating—Doubtful

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and

values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely.

8 Rating—Definite Loss

Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectible and of such little value that continuation as active assets of the Company is not warranted.

Assets rated as "OAEM," "substandard" or "doubtful" based on criteria established under banking regulations are collectively referred to as "criticized" assets.

Credit Quality Information

The following tables present the recorded investment in loans in each class as of December 31, 2020 by credit quality indicator and year originated.

2020

2019

2018

2017

2016

Prior

Revolving Loans

(In Thousands)

Revolving Loans
Converted to Term
Loans

Total

December 31, 2020

Commercial Real Estate

Pass
OAEM
Substandard
Total

Multi-Family Mortgage

$

Pass
OAEM
Total
Construction

Pass
Substandard
Total
Commercial

Pass
OAEM
Substandard
Doubtful
Total

352,832  $

— 
— 
352,832 

125,434 
— 
125,434 

46,249 

46,249 

574,542 
310 
80 
— 
574,932 

412,071  $

282,629  $

477 
— 
412,548 

136,620 
— 
136,620 

56,074 
4,853 
60,927 

66,278 
4,850 
— 
— 
71,128 

— 
— 
282,629 

162,180 
— 
162,180 

112,856 

112,856 

41,325 
— 
129 
— 
41,454 

243,477  $
3,312 
2 
246,791 

127,873 
— 
127,873 

2,788 
2,764 
5,552 

22,085 
35 
29 
— 
22,149 

944,676  $
8,991 
5,220 
958,887 

304,224 
2,388 
306,612 

404 

404 

113,715 
17 
7,612 
— 
121,344 

55,392  $
— 
— 

12,585  $
— 
62 

15,845 
— 

34,871 
— 

3,834 

— 

226,495 
5,382 
3,930 
— 
235,807 

1,687 
— 
664 
2 
2,353 

2,559,448 
12,780 
6,545 
2,578,773 

1,011,044 
2,388 
1,013,432 

224,004 
7,617 
231,621 

1,108,239 
10,594 
12,833 
2 
1,131,668 

255,786  $

— 
1,261 
257,047 

103,997 
— 
103,997 

1,799 

1,799 

62,112 
— 
389 
— 
62,501 

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

2020

2019

2018

2017

2016

Prior

Revolving Loans

(In Thousands)

Revolving Loans
Converted to Term
Loans

Total

December 31, 2020

Equipment Financing

Pass
OAEM
Substandard
Doubtful
Total

Condominium Association

Pass
Substandard
Total

Other Consumer

Pass
Substandard
Total

Total
Pass
OAEM
Substandard
Doubtful
Total

$

332,375 
196 
402 
1 
332,974 

6,455 
— 
6,455 

694 
— 
694 

1,438,581 
506 
482 
1 
1,439,570 

306,231 
1,066 
4,385 
64 
311,746 

9,918 
— 
9,918 

549 
— 
549 

987,741 
6,393 
9,238 
64 
1,003,436 

209,219 
290 
5,280 
24 
214,813 

5,399 
— 
5,399 

1,938 
— 
1,938 

815,546 
290 
5,409 
24 
821,269 

121,845 
93 
3,545 
27 
125,510 

7,928 
— 
7,928 

32 
— 
32 

553,499 
93 
5,195 
27 
558,814 

56,241 
609 
1,891 
1,292 
60,033 

5,213 
112 
5,325 

570 
— 
570 

458,247 
3,956 
4,798 
1,292 
468,293 

45,451 
85 
631 
6 
46,173 

12,682 
— 
12,682 

301 
— 
301 

1,421,453 
11,481 
13,463 
6 
1,446,403 

636 

— 
— 

2,684 
— 

28,755 
— 

333,641 
5,382 
3,930 
— 
342,953 

576 
— 
— 
— 

379 
— 

18 
2 

50,116 
— 
728 
2 
50,846 

1,072,574 
2,339 
16,134 
1,414 
1,092,461 

50,658 
112 
50,770 

32,857 
2 
32,859 

6,058,824 
28,101 
43,243 
1,416 
6,131,584 

As of December 31, 2020, there were no loans categorized as definite loss.

For residential mortgage and home equity loans, the borrowers' credit scores contribute as a reserve metric in the retail loss rate model.

F-39

 
Table of Contents

Residential
Credit Scores
Over 700
661 - 700
600 and below
Data not available*
Total
Home Equity
Credit Scores
Over 700
661 - 700
600 and below
Data not available*
Total

* Represents accounts for which data are not available.

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

2020

2019

2018

2017

December 31, 2020

2016
(In Thousands)

Prior

Revolving Loans

Revolving Loans
Converted to Term
Loans

Total

119,566 
21,820 
6,901 
19,209 
167,496 

1,546 
122 
59 
61 
1,788  $

$

94,300 
19,426 
5,659 
17,082 
136,467 

2,832 
459 
108 
— 
3,399  $

62,452 
10,943 
4,763 
16,199 
94,357 

2,440 
499 
266 
— 
3,205  $

53,662 
15,616 
4,318 
14,153 
87,749 

2,770 
566 
13 
— 
3,349  $

47,327 
8,132 
4,553 
5,729 
65,741 

910 
305 
39 
— 
1,254  $

124,999 
23,282 
13,997 
71,456 
233,734 

12,804 
2,793 
541 
1,387 
17,525  $

4,442 
— 
— 
— 
4,442 

247,538 
45,356 
10,139 
7,330 
310,363  $

—  $
—  $
—  $
1,331  $
1,331 

2,397 
1,334 
878 
1,160 
5,769  $

506,748 
99,219 
40,191 
145,159 
791,317 

273,237 
51,434 
12,043 
9,938 
346,652 

2020

F-40

 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following tables present the recorded investment in loans in each class as of December 31, 2019 by credit quality indicator.

Commercial 
Real Estate

Multi- 
Family 
Mortgage

At December 31, 2019

Construction

Commercial
(In Thousands)

Equipment 
Financing

Condominium 
Association

Other 
Consumer

Total

Originated:
Loan rating:

Pass
OAEM
Substandard
Doubtful
Total originated

Acquired:
Loan rating:

Pass
OAEM
Substandard
Total acquired

Total loans

$

$

2,379,925 
17,006 
3,106 
— 
2,400,037 

$

896,398 
— 
84 
— 
896,482 

$

239,015 
— 
— 
— 
239,015 

$

688,268 
10,803 
14,801 
3 
713,875 

$

1,038,793 
1,389 
7,995 
1,820 
1,049,997 

$

56,687 
— 
151 
— 
56,838 

$

38,673 
— 
1 
— 
38,674 

81,360 
597 
9,017 
90,974 

35,681 
— 
— 
35,681 

7,033 
— 
— 
7,033 

15,215 
210 
202 
15,627 

2,404 
— 
7 
2,411 

— 
— 
— 
— 

108 
— 
— 
108 

5,337,759 
29,198 
26,138 
1,823 
5,394,918 

141,801 
807 
9,226 
151,834 

$

2,491,011 

$

932,163 

$

246,048 

$

729,502 

$

1,052,408 

$

56,838 

$

38,782 

$

5,546,752 

As of December 31, 2019, there were no loans categorized as definite loss.

F-41

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Originated:
Loan-to-value ratio:
Less than 50%
50%—69%
70%—79%
80% and over
Data not available*
Total originated

Acquired:
Loan-to-value ratio:
Less than 50%
50%—69%
70%—79%
80% and over
Data not available*
Total acquired

Total loans

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Residential Mortgage

At December 31, 2019

($ In Thousands)

Home Equity

$

$

184,628 
293,976 
204,600 
25,664 
2,654 
711,522 

32,838 
44,754 
14,305 
4,608 
6,218 
102,723 

814,245 

22.7 % $
36.1 %
25.1 %
3.2 %
0.3 %
87.4 %

4.0 %
5.4 %
1.8 %
0.6 %
0.8 %
12.6 %

100.0 % $

132,736 
91,681 
81,459 
37,371 
— 
343,247 

16,882 
7,958 
705 
4,726 
3,301 
33,572 

376,819 

35.2 %
24.3 %
21.6 %
9.9 %
— %
91.0 %

4.5 %
2.1 %
0.2 %
1.3 %
0.9 %
9.0 %

100.0 %

_______________________________________________________________________________
* Represents accounts for which data are not available.

The following table presents information regarding foreclosed residential real estate property for the periods indicated:

Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure

$

At December 31, 2020

At December 31, 2019

(In Thousands)
— 

$

110 

F-42

 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Age Analysis of Past Due Loans and Leases

The following tables present an age analysis of the recorded investment in total loans and leases as of December 31, 2020 and 2019. 

At December 31, 2020

Past Due

31-60 

Days

61-90 

Days

Greater 

Than 
90 Days

Total

Current

(In Thousands)

Total Loans 

and Leases

 Past 
Due Greater 
Than 90 Days 
and Accruing

Non-accrual

Non-accrual

with no related
Allowance

$

18,294 

$

12,402 

$

7,272 

$

37,968 

$

2,540,805 

$

2,578,773 

$

4,722 

$

3,300 

$

2,580 

813 
— 

— 
— 

— 
7,617 

813 
7,617 

1,012,619 
224,004 

1,013,432 
231,621 

19,107 

12,402 

14,889 

46,398 

3,777,428 

3,823,826 

9,171 

9,391 

— 

9,926 

17,624 

579 

1,121,742 

1,074,837 

50,191 

1,131,668 

1,092,461 

50,770 

— 
3,764 

8,486 

3,486 

— 

— 

— 
3,853 

7,153 

7,702 

16,757 

112 

— 
3,853 

6,433 

6,263 

4,062 

112 

18,562 

28,129 

2,246,770 

2,274,899 

3,486 

24,571 

10,437 

3,841 
588 
1 

4,430 

6,650 
1,383 
14 

8,047 

784,667 
345,269 
32,845 

791,317 
346,652 
32,859 

1,162,781 

1,170,828 

— 
3 
— 

3 

5,587 
1,136 
1 

6,724 

5,117 
824 
— 

5941

$

28,564 

$

16,129 

$

37,881 

$

82,574 

$

7,186,979 

$

7,269,553 

$

11,975 

$

38,448 

$

22,811 

451 

5,970 

282 

6,703 

2,161 
580 
13 

2,754 

304 

2,263 

297 

2,864 

648 
215 
— 

863 

Commercial

real estate loans:

Commercial

real estate

Multi-family

mortgage

Construction
Total
commercial real
estate loans

Commercial

loans and leases:

Commercial
Equipment

financing

Condominium

association

Total
commercial loans
and leases
Consumer loans:
Residential

mortgage

Home equity
Other consumer
Total consumer

loans

Total loans

and leases

There is no interest income recognized on non-accrual loans for the year ending December 31, 2020.

F-43

 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

31-60 
Days

61-90 
Days

Past Due

Greater 
Than 
90 Days

At December 31, 2019

Total

Current
(In Thousands)

Total Loans 
and Leases

Loans and 
Leases Past 
Due Greater 
Than 90 Days 
and Accruing

Nonaccrual 
Loans and 
Leases

$

Originated:

Commercial real estate loans:

Commercial real estate

Multi-family mortgage
Construction

Total commercial real estate loans

Commercial loans and leases:
Commercial
Equipment financing

Condominium association
Total commercial loans and leases

Consumer loans:

Residential mortgage
Home equity
Other consumer
Total consumer loans

Total originated loans and leases

$

3,330 
3,559 
— 
6,889 

5,010 
3,098 
458 
8,566 

1,014 
794 
46 
1,854 
17,309 

$

$

2,032 
553 
— 
2,585 

199 
1,558 
— 
1,757 

— 
501 
1 
502 
4,844 

$

$

1,606  $
— 
— 
1,606 

3,875 
7,246 
— 
11,121 

3 
139 
1 
143 
12,870  $

6,968  $
4,112 
— 
11,080 

9,084 
11,902 
458 
21,444 

1,017 
1,434 
48 
2,499 
35,023  $

2,393,069  $
892,370 
239,015 
3,524,454 

704,791 
1,038,095 
56,380 
1,799,266 

710,505 
341,813 
38,626 
1,090,944 
6,414,664  $

2,400,037 
896,482 
239,015 
3,535,534 

713,875 
1,049,997 
56,838 
1,820,710 

711,522 
343,247 
38,674 
1,093,443 
6,449,687 

$

$

51 
— 
— 
51 

— 
— 
— 
— 

— 
2 
— 
2 
53 

$

$

2,751 
84 
— 
2,835 

4,707 
9,822 
151 
14,680 

753 
276 
1 
1,030 
18,545 
(Continued)

F-44

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

31-60 
Days

61-90 
Days

Past Due

Greater 
Than 
90 Days

At December 31, 2019

Total

Current
(In Thousands)

Total Loans 
and Leases

Loans and 
Leases Past 
Due Greater 
Than 90 Days 
and Accruing

Nonaccrual 
Loans and 
Leases

$

$

539 
— 
— 
539 

— 
— 
— 

35 
430 
— 
465 
1,004 

59 
— 
— 
59 

— 
— 
— 

75 
— 
— 
75 
134 

$

8,989  $
— 
— 
8,989 

9,587  $
— 
— 
9,587 

— 
7 
7 

1,090 
42 
— 
1,132 
10,128 

— 
7 
7 

1,200 
472 
— 
1,672 
11,266 

81,387  $
35,681 
7,033 
124,101 

15,627 
2,404 
18,031 

101,523 
33,100 
108 
134,731 
276,863 

90,974  $
35,681 
7,033 
133,688 

15,627 
2,411 
18,038 

102,723 
33,572 
108 
136,403 
288,129 

$

8,919 
— 
— 
8,919 

— 
7 
7 

1,090 
40 
— 
1,130 
10,056 

94 
— 
— 
94 

202 
— 
202 

— 
620 
— 
620 
916 

Acquired:

Commercial real estate loans:
Commercial real estate

Multi-family mortgage
Construction

Total commercial real estate loans

Commercial loans and leases:
Commercial
Equipment financing

Total commercial loans and leases

Consumer loans:

Residential mortgage
Home equity
Other consumer
Total consumer loans

Total acquired loans and leases

Total loans and leases

$

18,313 

$

4,978 

$

22,998  $

46,289  $

6,691,527  $

6,737,816 

$

10,109 

$

19,461 

Impaired Loans and Leases

A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan
agreement. The loans and leases risk-rated "substandard" or worse are considered impaired. The Company has also defined the population of impaired loans to include nonaccrual loans and TDR loans. Impaired loans and leases which do
not share similar risk characteristics with other loans are individually evaluated for credit losses. Specific reserves are established for loans and leases with deterioration in the present value of expected future cash flows or, in the case of
collateral-dependent loans and leases, any increase in the loan or lease amortized cost basis over the fair value of the underlying collateral discounted for estimated selling costs. In contrast, the loans and leases which share similar risk
characteristics and are not included in the individually evaluated population are collectively evaluated for credit losses.

The following tables present information regarding individually evaluated and collectively evaluated allowance for loan and lease losses for credit losses on loans and leases at the dates indicated. Periods prior to January 1, 2020 are

presented in accordance with accounting rules effective at that time.

F-45

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Allowance for Loan and Lease Losses:
Individually evaluated for impairment
Collectively evaluated for impairment
Total

Loans and Leases:

Individually evaluated for impairment
Collectively evaluated for impairment
Total

Commercial Real Estate

Commercial

Consumer

Total

At December 31, 2020

(In Thousands)

$

$

$

$

183 
79,949 
80,132 

14,159 
3,809,667 
3,823,826 

2,020 
27,478 
29,498 

24,727 
2,250,172 
2,274,899 

108 
4,641 
4,749 

8,760 
1,162,068 
1,170,828 

2,311 
112,068 
114,379 

47,646 
7,221,907 
7,269,553 

The following tables include the recorded investment and unpaid principal balances of impaired loans and leases with the related allowance amount, if applicable, for the originated and acquired loan and lease portfolios at the dates

indicated. Also presented are the average recorded investments in the impaired loans and leases and the related amount of interest recognized during the period that the impaired loans were impaired.

F-46

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Allowance for Loan and Lease Losses:
Originated:
With no related allowance recorded:

Commercial real estate
Commercial
Consumer
Total originated with no related allowance recorded

With an allowance recorded:
Commercial real estate
Commercial
Consumer
Total originated with an allowance recorded

Total originated impaired loans and leases

Acquired:
With no related allowance recorded:

Commercial real estate
Commercial
Consumer
Total acquired with no related allowance recorded

With an allowance recorded:

Consumer
 Total acquired with an allowance recorded
Total acquired impaired loans and leases

Recorded 
Investment

At December 31, 2019
Unpaid 
Principal 
Balance

Related 
Allowance

$

$

3,899 
28,539 
2,237 
34,675 

68 
5,980 
1,224 
7,272 
41,947 

12,365 
437 
3,516 
16,318 

447 
447 
16,765 

$

3,892 
28,533 
2,223 
34,648 

68 
6,055 
1,220 
7,343 
41,991 

12,366 
437 
3,516 
16,319 

447 
447 
16,766 

— 
— 
— 
— 

7 
1,672 
70 
1,749 
1,749 

— 
— 
— 
— 

40 
40 
40 

Total impaired loans and leases

$

58,712 

$

58,757 

$

1,789 

F-47

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Originated:
With no related allowance recorded:

Commercial real estate
Commercial
Consumer
Total originated with no related allowance recorded

With an allowance recorded:
Commercial real estate
Commercial
Consumer
Total originated with an allowance recorded
Total originated impaired loans and leases

Acquired:
With no related allowance recorded:

Commercial real estate
Commercial
Consumer
Total acquired with no related allowance recorded

With an allowance recorded:

Consumer
  Total acquired with an allowance recorded
Total acquired impaired loans and leases

December 31, 2019

December 31, 2018

Average 
Recorded 
Investment

Interest 
Income 
Recognized

Average 
Recorded 
Investment

Interest 
Income 
Recognized

$

$

5,148 
29,759 
2,662 
37,569 

269 
7,125 
946 
8,340 
45,909 

11,409 
511 
4,298 
16,218 

302 
302 
16,520 

$

110 
1,009 
42 
1,161 

3 
76 
32 
111 
1,272 

163 
11 
39 
213 

11 
11 
224 

$

6,484 
26,514 
2,801 
35,799 

99 
9,026 
835 
9,960 
45,759 

9,868 
1,212 
5,061 
16,141 

135 
135 
16,276 

87 
993 
54 
1,134 

— 
96 
11 
107 
1,241 

7 
16 
61 
84 

4 
4 
88 

Total impaired loans and leases

$

62,429 

$

1,496 

$

62,035 

$

1,329 

F-48

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following tables present information regarding impaired and non-impaired loans and leases at the dates indicated:

Allowance for Loan and Lease Losses:
Originated:

Individually evaluated for impairment
Collectively evaluated for impairment
Total originated loans and leases

Acquired:

Individually evaluated for impairment
Collectively evaluated for impairment
Acquired with deteriorated credit quality
Total acquired loans and leases

Total allowance for loan and lease losses

Loans and Leases:
Originated:

Individually evaluated for impairment
Collectively evaluated for impairment
Total originated loans and leases

Acquired:

Individually evaluated for impairment
Collectively evaluated for impairment
Acquired with deteriorated credit quality
Total acquired loans and leases

Total loans and leases

Commercial Real Estate

Commercial

Consumer

Total

At December 31, 2019

(In Thousands)

$

$

$

7  $

28,415 
28,422 

1,672  $
22,853 
24,525 

$

70 
5,850 
5,920 

— 
65 
1,798 
1,863 

— 
197 
104 
301 

40 
11 
— 
51 

1,749 
57,118 
58,867 

40 
273 
1,902 
2,215 

30,285  $

24,826  $

5,971 

$

61,082 

3,956  $

20,019  $

3,531,578 
3,535,534 

1,800,691 
1,820,710 

$

3,326 
1,090,117 
1,093,443 

2,942 
79,465 
51,281 
133,688 

397 
15,465 
2,176 
18,038 

1,841 
110,758 
23,804 
136,403 

27,301 
6,422,386 
6,449,687 

5,180 
205,688 
77,261 
288,129 

$

3,669,222  $

1,838,748  $

1,229,846 

$

6,737,816 

F-49

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Troubled Debt Restructured Loans and Leases

A specific valuation allowance for losses on troubled debt restructured loans is initially determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the

original effective rate.

The following table sets forth information regarding troubled debt restructured loans and leases at the dates indicated:

Troubled debt restructurings:

On accrual
On nonaccrual
Total troubled debt restructurings

At December 31, 2020

At December 31, 2019

(In Thousands)

11,483 
7,476 
18,959 

$

$

17,076 
6,104 
23,180 

$

$

Total troubled debt restructuring loans and leases decreased by $4.2 million to $19.0 million at December 31, 2020 from $23.2 million at December 31, 2019, primarily driven by the payoffs of one construction loan of $2.9 million,

and one commercial loan of $3.0 million, partially offset by new TDRs added during the year ended December 31, 2020.

The amortized cost basis in TDR loans and the associated specific credit losses for the loan and lease portfolios, that were modified during the periods indicated, are as follows:

Commercial real estate
Commercial
Equipment financing
Residential mortgage
Home equity

Total

At and for the Year Ended December 31, 2020

Number of 
Loans/ 
Leases

Recorded Investment

At 
Modification

At End of 
Period

$

— 
2 
24 
— 
2 
28 

$

— 
3,029 
1,366 
— 
476 
4,871 

— 
2,970 
1,914 
— 
465 
5,349 

$

Specific 
Allowance for 
Loan and 
Lease Losses
(Dollars in Thousands)
— 
— 
173 
— 
— 
173 

$

Nonaccrual 
Loans and 
Leases

Number of 
Loans/ 
Leases

Recorded 
Investment

Defaulted 

(1)

— 
— 
1,874 
— 
265 
2,139 

$

1 
— 
— 
— 

— 
1 

215 
— 
— 
— 
— 
215 

______________________________________________________________________
(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

F-50

 
 
 
 
 
 
 
Table of Contents

Originated:
Commercial real estate
Multi-family mortgage
Commercial
Equipment financing
Residential mortgage
Home equity

Total originated

Acquired:
Commercial
Home equity
Equipment financing
Residential mortgage

Total acquired

Total loans and leases

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Recorded Investment

Defaulted 

(1)

At and for the Year Ended December 31, 2019

Number of 
Loans/ 
Leases

At 
Modification

At End of 
Period

Specific 
Allowance for 
Loan and 
Lease Losses
(Dollars in Thousands)

Nonaccrual 
Loans and 
Leases

Number of 
Loans/ 
Leases

Recorded 
Investment

$
$

$

2 
— 
3 
7 
3 
3 
18 

1 
1 
— 
1 
3 

295 
— 
6,794 
2,774 
868 
453 
11,184 

$
$

$

4,869 
134 
— 
297 
5,300 

290  $
$
— 
5,457 
2,266 
866 
453 
9,332  $

2,942 
133 
— 
295 
3,370 

— 
— 
2,455 
— 
— 
— 
2,455 

$
$

$

— 
— 
— 
— 
— 

221 
— 
1,912 
392 
96 
— 
2,621 

— 
133 
— 
— 
133 

$
$

$

— 
— 
1 
2 
— 
— 
3 

— 
— 
— 
— 
— 

— 
— 
1,912 
365 
— 
— 
2,277 

— 
— 
— 
— 
— 

21 

$

16,484 

$

12,702  $

2,455 

$

2,754 

3 

$

2,277 

______________________________________________________________________
(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

Originated:

Commercial real estate

Multi-family mortgage
Commercial
Equipment financing
Residential mortgage
Home equity

Total originated

Acquired:
Home equity

Total acquired

Total loans and leases

Number of 
Loans/ 
Leases

Recorded Investment

At 
Modification

At End of 
Period

Specific 
Allowance for 
Loan and 
Lease Losses
(Dollars in Thousands)

Nonaccrual 
Loans and 
Leases

Number of 
Loans/ 
Leases

Recorded 
Investment

Defaulted 

(1)

At and for the Year Ended December 31, 2018

$
$

1 
— 
10 
14 
2 
1 
28 

2 
2 

$
$

673 
— 
1,775 
2,510 
550 
86 
5,594 

249 
249 

$
$

652 
— 
1,706 
2,556 
550 
83 
5,547 

245 
245 

$
$

— 
— 
733 
37 
12 
— 
782 

— 
— 

30 

$

5,843 

$

5,792  $

782 

$

653 
— 
1,706 
1,351 
341 
— 
4,051 

245 
245 

4,296 

$
$

— 
— 
2 
— 
1 
— 
3 

— 
— 

— 
— 
1,075 
— 
341 
— 
1,416 

— 
— 

3 

$

1,416 

______________________________________________________________________
(1) Includes loans and leases that have been modified within the past twelve months and subsequently had payment defaults during the period indicated.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following table sets forth the Company's end-of-period balances for troubled debt restructurings that were modified during the periods indicated, by type of modification. 

Extended maturity
Adjusted principal
Adjusted interest rate
Interest only
Combination maturity, principal, interest rate

Total loans modified

2020

Year Ended 

December 31,

2019
(In Thousands)

$

$

3,297 
40 
113 
— 
1,899 
5,349 

$

$

8,826 
— 
252 
— 
3,624 
12,702 

$

$

2018

1,717 
— 
— 
— 
4,075 
5,792 

The TDR loans and leases that were modified for the year ending December 31, 2020 and 2019 were $5.3 million and $12.7 million, respectively. The decrease in TDR loans and leases that were modified for the year ending

December 31, 2020 was primarily due to the modification of three commercial relationships totaling $7.1 million during the year ending December 31, 2019.

The net charge-offs of the performing and nonperforming troubled debt restructuring loans and leases for the years ending December 31, 2020, and 2019, were $0.8 million and $2.0 million, respectively. The decrease in the net

charge-offs of the performing and nonperforming TDR loans and leases for the year ending December 31, 2020 was primarily driven by the charge-offs of several taxi medallion relationships during the year ending December 31, 2019.

The commitments to lend funds to debtors owing receivables whose terms had been modified in TDRs as of December 31, 2020 was $2.4 million. As of December 31, 2019, there were $3.1 million commitments to lend funds to

debtors owing receivables whose terms had been modified in TDRs.

The Coronavirus Aid, Relief and Economic Security ("CARES") Act and regulatory guidance issued by the Federal banking agencies provides that certain short-term loan modifications to borrowers experiencing financial distress as
a result of the economic impacts created by the COVID-19 pandemic are not required to be treated as TDRs under GAAP. As such, the Company suspended TDR accounting for COVID-19 pandemic related loan modifications meeting the
loan modification criteria set forth under the CARES Act or as specified in the regulatory guidance. Further, loans granted payment deferrals related to the COVID-19 pandemic are not required to be reported as past due or placed on non-
accrual status (provided the loans were not past due or on non-accrual status prior to the deferral). As of December 31, 2020, the Company granted 4,989 short-term deferments on loan and lease balances of $1.1 billion. Of these
modifications, 4,691, loans and leases with total balances of $1.0 billion have returned to the payment status and 298 loans and leases with total balances of $90.4 million remain on the deferral status, which represent 1.2% of total loan
and leases balances as of December 31, 2020.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(8) Premises and Equipment

Premises and equipment consist of the following:

Land
Fine art
Computer equipment
Vehicles
Core processing system and software
Furniture, fixtures and equipment
Office building and improvements

Total

Accumulated depreciation and amortization

Total premises and equipment

At December 31,

2020

2019

(In Thousands)

$

$

12,329  $
553 
12,296 
135 
21,096 
15,732 
91,660 
153,801 
82,233 
71,568  $

12,320 
545 
11,886 
135 
20,748 
15,393 
90,086 
151,113 
76,763 
74,350 

Estimated 
Useful Life
(In Years)
NA
NA
3
3 to 5
3 to 7.5
5 to 25
10 to 40

Depreciation and amortization expense is calculated using the straight-line method and is included in occupancy and equipment and data processing expense in the Consolidated Statements of Income. For the years ended

December 31, 2020, 2019 and 2018, depreciation and amortization expense related to premises and equipment totaled $5.7 million, $7.0 million, and $7.5 million, respectively.

(9) Goodwill and Other Intangible Assets

The changes in the carrying value of goodwill for the periods indicated were as follows:

Balance at beginning of year
Additions
Balance at end of year

2020

Year Ended December 31,
2019
(In Thousands)

$

$

160,427 
— 
160,427 

$

$

160,427 
— 
160,427 

$

$

2018

137,890 
22,537 
160,427 

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following is a summary of the Company's other intangible assets:

Other intangible assets:

Core deposits
Trade name
Trust relationship
Other intangible

Total other intangible assets

Gross 
Amount

At December 31, 2020
Accumulated 
Amortization

Carrying 
Amount

Gross 
Amount

(In Thousands)

At December 31, 2019
Accumulated 
Amortization

Carrying 
Amount

$

$

38,294  $
1,600 
1,568 
442 
41,904  $

36,231 
511 
1,568 
442 
38,752 

$

$

2,063 
1,089 
— 
— 
3,152 

$

$

38,294  $
1,600 
1,568 
442 
41,904  $

34,960 
511 
1,568 
442 
37,481 

$

$

3,334 
1,089 
— 
— 
4,423 

At December 31, 2013, the Company concluded that the BankRI name would continue to be utilized in its marketing strategies; therefore, the trade name with carrying value of $1.1 million, has an indefinite life and ceased to

amortize.

The weighted-average amortization period for the core deposit intangible is 6.44 years.  There were no impairment losses relating to other acquisition-related intangible assets recorded during the years ended December 31, 2020,

2019 and 2018.

The estimated aggregate future amortization expense for other intangible assets for each of the next five years and thereafter is as follows:

Year ended December 31:

2021
2022
2023
2024
2025
Thereafter

Total

(10) Other Assets

BOLI

Amount

(In Thousands)
857 
500 
268 
158 
104 
176 
2,063 

$

$

BOLI is recorded at the cash surrender value of the policies, less any applicable cash surrender charges, and is recorded in other assets. As of December 31, 2020 and 2019, BankRI owned seven policies with a net cash surrender

value of $42.0 million and $41.0 million, respectively. As of December 31, 2020 and 2019, Brookline Bank, as successor-in-interest to First Ipswich Bank owned two policies with a net cash surrender value of $0.7 million, respectively.

The Company recorded a total of $1.0 million, $1.0 million, and $1.0 million of tax exempt income from these nine policies in 2020, 2019, and 2018, respectively. They are included in the Company’s other non-interest income in

the consolidated statements of income.

Affordable Housing Investments

The Company invests in affordable housing projects that benefit low- and moderate-income individuals. As of December 31, 2020, the Company had investments in 17 of these projects. The project sponsor or general partner

controls the project's management. In each case, the Company is a limited partner with less than 50% of the outstanding equity interest in any single project.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The Company uses the proportional amortization method to account for investments in affordable housing projects. The proportional amortization method calculation and the operating losses or gains for these investments are

included as a component of the provision for income taxes in the Company’s consolidated statements of income. Under the proportional amortization method, the initial costs of the investment in qualified affordable housing projects is
amortized based on the tax credits and other benefits received.

Further information regarding the Company's investments in affordable housing projects follows:

Investments in affordable housing projects included in other assets
Unfunded commitments related to affordable housing projects included in other liabilities
Investment in affordable housing tax credits
Investment in affordable housing tax benefits

Investment amortization included in provision for income taxes
Amount recognized as income tax benefit

F-55

2020

At December 31,

(In Thousands)

26,789  $
14,480 
2,377 
823 

2019

2020

For the year ended December 31,
2019
(In Thousands)

3,097  $
823 

2,097  $
540 

2018

29,939 
20,286 
2,042 
540 

1,916 
585 

$

$

 
 
 
Table of Contents

(11) Deposits

A summary of deposits follows: 

Demand checking accounts
NOW accounts
Savings accounts
Money market accounts

Total core deposit accounts

Certificate of deposit accounts maturing:

Within six months
After six months but within 1 year
After 1 year but within 2 years
After 2 years but within 3 years
After 3 years but within 4 years
After 4 years but within 5 years
5+ Years

Total certificate of deposit accounts

Brokered deposit accounts

Total deposits

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

December 31, 2020

December 31, 2019

Amount

Weighted 

Average 
Rate

(Dollars in Thousands)

Amount

Weighted 

Average 
Rate

$

$

$
$

1,592,205 
513,948 
701,659 
2,018,977 
4,826,789 

676,860 
461,944 
140,481 
61,302 
28,525 
20,788 
98 
1,389,998 
693,909 
6,910,696 

— 
0.09 
0.13 
0.31 
0.16 

1.60 
1.08 
1.19 
2.44 
2.62 
1.47 
0.75 
1.44 
0.39 

0.44 

%
%
%
%
%

%
%
%
%
%
%
%
%
%

%

$

$

$
$

1,141,578 
371,380 
613,467 
1,682,005 
3,808,430 

603,817 
508,782 
413,979 
56,508 
58,491 
29,759 
402 
1,671,738 
349,904 
5,830,072 

— 
0.11 
0.46 
1.15 
0.59 

2.17 
2.27 
2.37 
2.19 
2.64 
2.58 
2.19 
2.28 
2.18 

1.17 

%
%
%
%
%

%
%
%
%
%
%
%
%
%

%

Certificate of deposit accounts issued in amounts of $250,000 or more totaled $443.0 million and $557.5 million as of December 31, 2020 and 2019, respectively.

Interest expense on deposit balances is summarized as follows

Interest-bearing deposits:

NOW accounts
Savings accounts
Money market accounts
Certificate of deposit accounts
Brokered deposit accounts

Total interest-bearing deposits

Related Party Deposits

2020

Year Ended December 31,
2019
(In Thousands)

2018

$

$

484 
1,503 
9,519 
30,355 
6,565 
48,426 

$

$

436 
2,900 
21,206 
36,326 
8,747 
69,615 

$

$

283 
1,804 
15,369 
19,017 
5,505 
41,978 

Deposit accounts of directors, executive officers and their affiliates totaled $72.6 million and $70.4 million as of December 31, 2020 and 2019, respectively.

Collateral Pledged to Deposits

As of December 31, 2020 and 2019, $217.6 million and $184.0 million, respectively, of collateral was pledged for municipal deposits and TT&L.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(12) Borrowed Funds

Borrowed funds are comprised of the following: 

Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total borrowed funds

Interest expense on borrowed funds for the periods indicated is as follows:

Advances from the FHLBB
Subordinated debentures and notes
Other borrowed funds

Total interest expense on borrowed funds

Collateral Pledged to Borrowed Funds

2020

At December 31,

(In Thousands)

2019

$

$

648,849 
83,746 
87,652 
820,247 

$

$

758,469 
83,591 
60,689 
902,749 

2020

Year Ended December 31,
2019
(In Thousands)

$

$

12,842 
5,038 
348 
18,228 

$

$

18,701 
5,206 
804 
24,711 

$

$

2018

18,650 
5,181 
385 
24,216 

As of December 31, 2020 and 2019, $2.9 billion and $2.5 billion, respectively, of investment securities and loans and leases, were pledged as collateral for repurchase agreements, swap agreements, FHLBB borrowings, and

municipal deposits and TT&L. The Banks did not have any outstanding FRB borrowings as of December 31, 2020 and 2019.

FHLBB Advances

FHLBB advances mature as follows: 

Within 1 year
Over 1 year to 2 years
Over 2 years to 3 years
Over 3 years to 4 years
Over 4 years to 5 years
Over 5 years

Amount

623,611 
4,805 
4,000 
3,880 
1,462 
11,091 
648,849 

$

$

$

$

2020

Callable 

Amount

At December 31,

Weighted 

Average 
Rate

(Dollars in Thousands)

Amount

2019

Callable 

Amount

Weighted 

Average 
Rate

— 
— 
— 
— 
— 
— 
— 

1.05 
0.53 
0.40 
3.86 
0.67 
3.41 
1.10 

%
%
%
%
%
%
%

$

$

599,262 
139,762 
3,210 
— 
4,025 
12,210 
758,469 

$

$

— 
— 
— 
— 
— 
— 
— 

2.27 
2.12 
0.01 
— 
3.91 
3.28 
2.26 

%
%
%
%
%
%
%

Actual maturities of the advances may differ from those presented above since the FHLBB has the right to call certain advances prior to the scheduled maturity.

The FHLBB advances are secured by blanket pledge agreements which require the Banks to maintain certain qualifying assets as collateral. The Banks did not have any FRB borrowings as of December 31, 2020. Total available

borrowing capacity for advances from the FHLBB and FRB was $2.5 billion as of December 31, 2020 for the Banks. The total amount of qualifying collateral for FHLBB and FRB borrowings was $4.0 billion as of December 31, 2020.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Other Borrowed Funds

Information concerning other borrowed funds is as follows for the periods indicated below:

Outstanding at end of year
Average outstanding for the year
Maximum outstanding at any month-end
Weighted average rate at end of year
Weighted average rate paid for the year

$

Year Ended December 31,

2020

2019

(Dollars In Thousands)
87,652 
90,587 
170,854 

$

0.16 %
0.38 %

60,689 
79,276 
122,776 

0.60 %
1.01 %

In addition to advances from the FHLBB and subordinated debentures and notes, the Company utilizes other funding sources as part of the overall liquidity strategy. Those funding sources include repurchase agreements, committed

and uncommitted lines of credit with several financial institutions.

The Company periodically enters into repurchase agreements with its larger deposit and commercial customers as part of its cash management services which are typically overnight borrowings. Repurchase agreements with

customers increased $15.0 million to $57.7 million as of December 31, 2020 from $42.7 million as of December 31, 2019.

The Company has access to a $12.0 million committed line of credit as of December 31, 2020. As of December 31, 2020 and December 31, 2019, the Company did not have any borrowings on this committed line of credit

outstanding.

The Banks also have access to funding through several uncommitted lines of credit of $865.0 million. As of December 31, 2020, the Company had $30.0 million borrowings on outstanding uncommitted lines of credit as compared to

December 31, 2019, when the Company had $18.0 million borrowings on outstanding uncommitted lines of credit.

Subordinated Debentures and Notes

On September 15, 2014, the Company issued $75.0 million of 6.0% fixed-to-floating subordinated notes due September 15, 2029. The Company is obligated to pay 6.0% interest semiannually between September 2014 and

September 2024. Subsequently, the Company is obligated to pay 3-month LIBOR plus 3.315% quarterly until the notes mature in September 2029.

The following table summarizes the Company's subordinated debentures and notes at the dates indicated.

Issue Date

Rate

Maturity Date

Next Call Date

December 31, 2020

December 31, 2019

Carrying Amount

June 26, 2003

March 17, 2004

September 15, 2014

Variable;
3-month LIBOR + 3.10%
Variable;
3-month LIBOR + 2.79%
6.0% Fixed-to-Variable;
3-month LIBOR + 3.315%

June 26, 2033

March 17, 2034

(Dollars in Thousands)

March 25, 2021

March 16, 2021

September 15, 2029

September 15, 2024

$

Total

$

4,848 

$

4,772 

74,126 
83,746 

$

4,826 

4,739 

74,026 
83,591 

The above carrying amounts of the acquired subordinated debentures included $0.4 million of accretion adjustments and $0.9 million of capitalized debt issuance costs as of December 31, 2020. This compares to $0.4 million of

accretion adjustments and $1.0 million of capitalized debt issuance costs as of December 31, 2019.

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(13) Commitments and Contingencies

Off-Balance Sheet Financial Instruments

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The Company is party to off-balance sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial

instruments include loan commitments, standby and commercial letters of credits, and loan level derivatives. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees
are incurred or received.

The contract amounts reflect the extent of the involvement the Company has in particular classes of these instruments. Such commitments involve, to varying degrees, elements of credit risk and interest-rate risk in excess of the
amount recognized in the consolidated balance sheets. The Company's exposure to credit loss in the event of non-performance by the counterparty is represented by the fair value of the instruments. The Company uses the same policies in
making commitments and conditional obligations as it does for on-balance sheet instruments.

Financial instruments with off-balance-sheet risk at the dates indicated follow:

Financial instruments whose contract amounts represent credit risk:

Commitments to originate loans and leases:

Commercial real estate
Commercial
Residential mortgage

Unadvanced portion of loans and leases
Unused lines of credit:

Home equity
Other consumer
Other commercial
Unused letters of credit:

Financial standby letters of credit
Performance standby letters of credit
Commercial and similar letters of credit

Loan level derivatives:

Receive fixed, pay variable
Pay fixed, receive variable
Risk participation-out agreements
Risk participation-in agreements

Foreign exchange contracts:

Buys foreign currency, sells U.S. currency
Sells foreign currency, buys U.S. currency

$

At December 31,

2020

2019

(In Thousands)

$

174,240 
80,291 
30,418 
759,053 

584,881 
38,954 
408 

14,746 
5,903 
5,105 

1,214,146 
1,214,146 
252,655 
60,619 

1,266 
1,273 

50,034 
78,058 
25,998 
808,681 

528,251 
25,374 
380 

10,166 
4,652 
3,823 

1,101,193 
1,101,193 
235,693 
55,281 

1,125 
1,230 

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and
may require the payment of a fee by the customer. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company
evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained, if any, is based on management's credit evaluation of the borrower.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Standby and commercial letters of credits are conditional commitments issued by the Company to guarantee performance of a customer to a third party. These standby and commercial letters of credit are primarily issued to support

the financing needs of the Company's commercial customers. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.

The reserve for unfunded credit commitments, which is included in other liabilities, was $13.1 million and $1.9 million as of December 31, 2020 and December 31, 2019, respectively. See Footnote 6 for further discussion on the

Company's methodology for determining the ACL, which includes the reserve for unfunded commitments.

From time to time, the Company enters into loan level derivatives, risk participation agreements or foreign exchange contracts with commercial customers and third-party financial institutions. These derivatives allow the Company
to offer long-term fixed-rate commercial loans while mitigating the interest-rate or foreign exchange risk of holding those loans. In a loan level derivative transaction, the Company lends to a commercial customer on a floating-rate basis
and then enters into a loan level derivative with that customer. Concurrently, the Company enters into offsetting swaps with a third-party financial institution, effectively minimizing its net interest-rate risk exposure resulting from such
transactions. The fair value of these derivatives are presented in Footnote 16.

Lease Commitments

The Company leases certain office space under various noncancellable operating leases. These leases have original terms ranging from 3 years to over 25 years. Certain leases contain renewal options and escalation clauses which

can increase rental expenses based principally on the consumer price index and fair market rental value provisions.

The Company considered the following criteria when determining whether a contract contains a lease, the existence of an identifiable asset and the right to obtain substantially all of the economic benefits from use of the asset

through the period. The Company used the FHLB classic advance rates as of December 31, 2020 as the discount rate to determine the net present value of the remaining lease payments.

The components of lease expense were as follow:

Operating lease cost

Supplemental cash flow information related to leases was as follows:
Cash paid for amounts included in the measurement of lease liabilities:

Operating cash flows for operating leases

Right-of-use assets obtained in exchange for new lease obligations:

Operating leases

Supplemental balance sheet information related to leases was as follows:
Operating Leases
Operating lease right-of-use assets
Operating lease liabilities

Weighted Average Remaining Lease Term
Operating leases

Weighted Average Discount Rate
Operating leases

$

$

$

$

At December 31, 2020

At December 31, 2019

(In Thousands)

6,386 

$

6,518 

72 

24,143 
24,143 

$

$

$

6.95

3.2 %

6,461 

6,515 

66 

24,876 
24,876 

7.47

3.2 %

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

A summary of future minimum rental payments under such leases at the dates indicated follows:

Year ended December 31,

2021
2022
2023
2024
2025
Thereafter
Total

Less imputed interest

Minimum Rental Payments

(In Thousands)

6,077 
5,497 
4,569 
3,291 
2,266 
5,064 
26,764 
(2,621)
24,143 

$

$

$

Certain leases contain escalation clauses for real estate taxes and other expenditures, which are not included above. Total rental expense was $6.1 million in 2020. This compares to total rent expense of $6.2 million in 2019. In 2018,

total rent expense was $5.8 million. The decrease in expense is due to lease expirations.

A portion of the Company's headquarters was rented to third-party tenants which generated rental income of $0.2 million in 2020 compared to $0.4 million in 2019 and 2018 respectively. The decrease in 2020 was due to the
negotiated early termination of a lease with one of the third party tenants and the modification to an existing lease for a retail tenant. Rental income was reported in non-interest income in the Company's consolidated statements of income.

Legal Proceedings

In the normal course of business, there are various outstanding legal proceedings. In the opinion of management, after consulting with legal counsel, the consolidated financial position and results of operations of the Company are

not expected to be affected materially by the outcome of such proceedings.

(14) Earnings per Share ("EPS")

The following table is a reconciliation of basic EPS and diluted EPS:

Numerator:

Net income

Denominator:

Weighted average shares outstanding

Effect of dilutive securities

Adjusted weighted average shares outstanding

EPS

$

$

2020

Basic

Fully 
Diluted

For the year ended December 31,

2019

Basic

Fully 
Diluted

(Dollars in Thousands, Except Per Share Amounts)

2018

Fully 
Diluted

Basic

47,635 

$

47,635  $

87,717  $

87,717  $

83,062 

$

83,062 

78,951,892 
— 
78,951,892 

78,951,892 
151,397 
79,103,289 

79,679,781 
— 
79,679,781 

79,679,781 
177,140 
79,856,921 

79,669,668 
— 
79,669,668 

79,669,668 
239,583 
79,909,251 

0.60 

$

0.60  $

1.10  $

1.10  $

1.04 

$

1.04 

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(15) Comprehensive Income/(Loss)

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Comprehensive income (loss) represents the sum of net income (loss) and other comprehensive income (loss). For the years ended December 31, 2020, 2019 and 2018, the Company’s other comprehensive income (loss) include the

following three components: (i) unrealized holding gains (losses) on investment securities available-for-sale; (ii) change in the fair value of cash flow hedges and (iii) adjustment of accumulated obligation for postretirement benefits.

Changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows for the periods indicated:

Balance at December 31, 2019
Other comprehensive income (loss)
Balance at December 31, 2020

Balance at December 31, 2018
Other comprehensive (loss) income
Reclassification due to adoption of ASU 2018-02
Balance at December 31, 2019

Balance at December 31, 2017
Other comprehensive (loss) income
Reclassification due to adoption of ASU 2018-02
Balance at December 31, 2018

Investment
Securities
 Available-for-Sale

Year Ended December 31, 2020

Hedge Assets

Postretirement 
Benefits

Accumulated Other 
Comprehensive 
Income

$

$

2,199 
14,383 
16,582 

$

$

(In Thousands)

—  $
7 
7  $

84 
(183)
(99)

$

$

Investment
Securities
 Available-for-Sale

Year Ended December 31, 2019

Postretirement 
Benefits
(In Thousands)

Accumulated Other 
Comprehensive 
Income (Loss)

(9,712)
11,911 
— 
2,199 

(6,113)
(3,599)
— 
(9,712)

$

$

$

$

252 
(168)
— 
84 

Year Ended December 31, 2018

Postretirement 
Benefits
(In Thousands)

163 
89 
— 
252 

$

$

$

$

Investment
Securities
 Available-for-Sale

Accumulated Other 
Comprehensive 
Income (Loss)

$

$

$

$

F-62

2,283 
14,207 
16,490 

(9,460)
11,743 
— 
2,283 

(5,950)
(3,510)
— 
(9,460)

 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

(16) Derivatives and Hedging Activities

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The Company executes loan level derivative products such as interest rate swap agreements with commercial banking customers to aid them in managing their interest rate risk. The interest rate swap contracts allow the commercial

banking customers to convert floating rate loan payments to fixed rate loan payments. The Company concurrently enters into offsetting swaps with a third party financial institution, effectively minimizing its net risk exposure resulting
from such transactions. The third party financial institution exchanges the customer's fixed rate loan payments for floating rate loan payments. As the interest rate swap agreements associated with this program do not meet hedge
accounting requirements, changes in the fair value are recognized directly in earnings. Based on the Company's intended use for the loan level derivatives at inception, the Company designates the derivative as either an economic hedge of
an asset or liability, or a hedging instrument subject to the hedge accounting provisions of FASB ASC Topic 815, "Derivatives and Hedging".

The Company believes using interest rate derivatives adds stability to interest income and expense and allows the Company to manage its exposure to interest rate movements. The Company enters into interest rate swaps as part

of its interest rate risk management strategy. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable rate amounts from a counterparty in exchange for the Company making fixed payments. The
Company enters into interest rate swaps as hedging instruments against the interest rate risk associated with the Company's FHLB borrowings. For derivative instruments that are designated and qualify as cash flow hedging instruments,
the effective portion of the gains or losses is reported as a component of other comprehensive income ("OCI"), and is reclassified into earnings in the period that the hedged forecasted transaction affects earnings.

As of December 31, 2020, the Company pays its counterparties a fixed weighted average interest rate of 0.05% over a maximum period of 2 years for derivative instruments that are designated as and qualify as cash flow hedging

instruments.

The Company utilizes risk participation agreements with other banks participating in commercial loan arrangements. Participating banks guarantee the performance on borrower-related interest rate swap contracts. Risk participation
agreements are derivative financial instruments and are recorded at fair value. These derivatives are not designated as hedges and therefore, changes in fair value are recorded directly through earnings at each reporting period. Under a risk
participation-out agreement, a derivative asset, the Company participates out a portion of the credit risk associated with the interest rate swap position executed with the commercial borrower, for a fee paid to the participating bank.

The Company offers foreign exchange contracts to commercial borrowers to accommodate their business needs. These foreign exchange contracts do not qualify as hedges for accounting purposes. To mitigate the market and

liquidity risk associated with these foreign exchange contracts, the Company enters into similar offsetting positions.

Asset derivatives and liability derivatives are included in other assets and accrued expenses and other liabilities on the unaudited consolidated balance sheets.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following tables present the Company's customer related derivative positions for the periods indicated below for those derivatives not designated as hedging: 

Notional Amount Maturing

Number of

Positions

Less than 1 year

Less than 2 years

Less than 3 years

Less than 4 years

Thereafter

Total

Fair Value

Loan level derivatives

Receive fixed, pay variable
Pay fixed, receive variable
Risk participation-out

agreements

Risk participation-in

agreements

Foreign exchange contracts

Buys foreign currency, sells

U.S. currency

Sells foreign currency, buys

U.S. currency

136 
136 

37 

8 

18 

20 

$

8,541 
8,541 

$

— 
— 

— 

— 

$

1,266 

$

1,273 

December 31, 2020

(Dollars In Thousands)

$

$

99,014 
99,014 

22,733 

— 

— 

— 

16,447 
16,447 

7,009 

19,000 

— 

— 

$

$

$

$

1,090,144 
1,090,144 

222,913 

41,619 

— 

— 

$

$

1,214,146 
1,214,146 

$

252,655 

60,619 

129,284 
129,284 

1,843 

361 

1,266 

$

1,273 

156 

148 

— 

— 

— 

— 

Loan level derivatives

Receive fixed, pay variable
Pay fixed, receive variable
Risk participation-out agreements
Risk participation-in agreements

Foreign exchange contracts

Buys foreign currency, sells U.S. currency
Sells foreign currency, buys U.S. currency

Number of Positions

Less than 1 year

Less than 2 years

Notional Amount Maturing
Less than 4 years

Less than 3 years

December 31, 2019
(Dollars In Thousands)

Thereafter

Total

Fair Value

$

119 
119 
40 
7 

24,777  $
24,777 
13,967 
— 

$

16 
18 

1,125  $
1,230 

$

— 
— 
— 
— 

$

— 
— 

31,131  $
31,131 
— 
— 

16,794  $
16,794 
7,143 
19,000 

1,028,491  $
1,028,491 
214,583 
36,281 

$

1,101,193 
1,101,193 
235,693 
55,281 

$

— 
— 

—  $
— 

$

— 
— 

$

1,125 
1,230 

58,102 
58,102 
1,229 
283 

54 
53 

Changes in the fair value are recognized directly in the Company's consolidated statements of income and are included in other non-interest income in the consolidated statements of income. The table below presents the net gain

(loss) recognized in income due to changes in the fair value for the year ended December 31, 2020 and 2019.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Net gain recognized in income on:
Net risk participation agreements
Foreign exchange contracts

Year Ended December 31,

2020

2019

(In Thousands)

$

Total $

538  $
7 
545  $

686 
(7)
679 

By using derivative financial instruments, the Company exposes itself to credit risk which is the risk of failure by the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is
positive, the counterparty owes the Company, which creates credit risk for the Company. When the fair value of a derivative is negative, the Company owes the counterparty and, therefore, it does not possess credit risk. The credit risk in
derivative instruments is mitigated by entering into transactions with highly-rated counterparties that management believes to be creditworthy and by limiting the amount of exposure to each counterparty by either cross collateralizing the
underlying hedged loan or through bilateral posting of collateral to cover exposure. As the swaps are subject to master netting agreements, the Company had limited exposure relating to loan level derivatives with institutional
counterparties as of December 31, 2020 and 2019. The estimated net credit risk exposure for derivative financial instruments was zero as of December 31, 2020, and 2019.

Certain derivative agreements contain provisions that require the Company to post collateral if the derivative exposure exceeds a threshold amount. The Company posted collateral of $166.5 million and $86.5 million in the normal

course of business as of December 31, 2020 and 2019, respectively.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The tables below present the offsetting of derivatives and amounts subject to master netting agreements not offset in the consolidated balance sheet at the dates indicated:

Gross 
Amounts Recognized

Gross Amounts 
Offset in the 
Statement of Financial Position

Net Amounts  Presented in
the Statement of Financial Position
(In Thousands)

Financial Instruments
Pledged

Cash Collateral Pledged

Net Amount

At December 31, 2020

Gross Amounts Not Offset in the 
Statement of Financial Position

Asset derivatives

Derivatives designated as hedging instruments:
Interest rate derivatives
Derivatives not designated as hedging instruments:
Loan level derivatives
Risk participation-out agreements
Foreign exchange contracts

$

$

Total $

Liability derivatives

Derivatives designated as hedging instruments:
Interest rate derivatives
Derivatives not designated as hedging instruments:
Loan level derivatives
Risk participation-in agreements
Foreign exchange contracts

$

$

Total $

8 

131,328 
1,843 
156 
133,335 

— 

131,328 
361 
148 
131,837 

$

$

$

$

$

$

8 

131,328 
1,843 
156 
133,335 

— 

131,328 
361 
148 
131,837 

$

$

$

$

$

$

— 

— 
— 
— 
— 

— 

155,220 
— 
— 
155,220 

$

$

$

$

$

$

— 

— 
— 
— 
— 

— 

11,280 
— 
— 
11,280 

$

$

$

$

$

$

8 

131,328 
1,843 
156 
133,335 

— 

(35,172)
361 
148 
(34,663)

— 

— 
— 
— 
— 

— 

— 
— 
— 
— 

$

$

$

$

$

$

F-66

 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Gross 
Amounts Recognized

Gross Amounts 
Offset in the 
Statement of Financial Position

Net Amounts  Presented in
the Statement of Financial Position
(In Thousands)

Financial Instruments
Pledged

Cash Collateral Pledged

Net Amount

At December 31, 2019

Gross Amounts Not Offset in the 
Statement of Financial Position

Asset derivatives

Loan level derivatives
Risk participation-out agreements
Foreign exchange contracts

Liability derivatives

Loan level derivatives
Risk participation-in agreements
Foreign exchange contracts

$

Total $

$

Total $

59,365 
1,229 
54 
60,648 

59,365 
283 
53 
59,701 

$

$

$

$

— 
— 
— 
— 

— 
— 
— 
— 

$

$

$

$

59,365 
1,229 
54 
60,648 

59,365 
283 
53 
59,701 

$

$

$

$

— 
— 
— 
— 

86,521 
— 
— 
86,521 

$

$

$

$

11,900 
— 
— 
11,900 

— 
— 
— 
— 

$

$

$

$

47,465 
1,229 
54 
48,748 

(27,156)
283 
53 
(26,820)

The Company has agreements with certain of its derivative counterparties that contain credit-risk-related contingent provisions. These provisions provide the counterparty with the right to terminate its derivative positions and require

the Company to settle its obligations under the agreements if the Company defaults on certain of its indebtedness or if the Company fails to maintain its status as a well-capitalized institution.

Derivatives designated as hedges
Gain in OCI on derivatives (effective portion), net of tax

Gain (loss) reclassified from OCI into interest income or interest expense (effective portion)

Year Ended December 31, 2020

Year Ended December 31, 2019

Fair Value

$
$

$

(Dollars in Thousands)
8  $
7  $

1  $

— 
— 

— 

The guidance in ASU 2017-12 requires that amounts in Accumulated other comprehensive income that are included in the assessment of effectiveness should be reclassified into earnings in the same period in which the hedged

forecasted transactions impact earnings. A portion of the balance reported in Accumulated other comprehensive income related to derivatives will be reclassified to Interest expense as interest payments are made or received on the
Company’s interest rate swaps. The Company monitors the risk of counterparty default on an ongoing basis.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(17) Income Taxes

Income tax expense is comprised of the following amounts:

Current provision:

Federal
State

Total current provision
Deferred (benefit) provision

Federal
State

Total deferred (benefit) provision

Total provision for income taxes

Total provision for income taxes differed from the amounts computed due to the following:

Expected income tax expense at statutory federal tax rate
State taxes, net of federal income tax benefit
Bank-owned life insurance
Tax-exempt interest income
Income attributable to noncontrolling interest in subsidiary
Merger and acquisition expense
Tax Act Adjustment
Investments in affordable housing projects
Other, net

Total provision for income taxes

Effective income tax rate

2020

Year Ended December 31,
2019
(In Thousands)

2018

22,450  $
7,077 
29,527 

(11,452)
(3,633)
(15,085)
14,442  $

21,706 
6,565 
28,271 

701 
(703)
(2)
28,269 

$

$

2020

Year Ended December 31,
2019
(Dollars In Thousands)

2018

13,036 
2,722 
(212)
(220)
— 
— 
— 
(595)
(289)
14,442 

$

$

24,366 
4,837 
(216)
(435)
(11)
— 
— 
(369)
97 
28,269 

$

$

23,949 
7,693 
31,642 

(4,323)
(1,130)
(5,453)
26,189 

23,675 
5,184 
(218)
(487)
(933)
32 
(707)
(358)
1 
26,189 

23.3 %

24.4 %

23.2 %

$

$

$

$

The Company's effective tax rate was 23.3% as of December 31, 2020 compared to 24.4% as of December 31, 2019. The Company's expected income tax expense was $11.3 million lower in 2020 primarily due to the impacts of the

COVID-19 pandemic. In 2019, the Company's effective tax rate was increased as a result of Brookline Bank's acquisition of the remaining interest of Eastern Funding. Tax savings of approximately $0.9 million were recognized for this
portion of Eastern Funding in 2018, but not in 2019. In 2018, the Company made an adjustment related to the Tax Act that reduced the provision for income taxes by $0.7 million.

F-68

 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at the dates indicated are as follows: 

Deferred tax assets:

Allowance for credit losses
Right-of-use asset - operating leases
Deferred compensation
Identified intangible assets and goodwill
Supplemental Executive Retirement Plans
Net operating loss carryforwards
Postretirement benefits
Nonaccrual interest
Restricted stock and stock option plans
Employee stock ownership plan
Unamortized SBA-PPP fee income
Other

Total gross deferred tax assets

Deferred tax liabilities:

Operating leases - liability
Identified intangible assets and goodwill
Deferred loan origination costs, net
Depreciation
Unrealized gain on investment securities available-for-sale
Prepaid expense
Accrued Expense
Acquisition fair value adjustments

Total gross deferred tax liabilities

Net deferred tax asset

At December 31,

2020

2019

(In Thousands)

$

$

33,045 
6,260 
4,365 
6,455 
3,290 
— 
545 
634 
466 
55 
2,534 
404 
58,053 

6,260 
2,048 
2,884 
408 
4,688 
58 
481 
1,097 
17,924 
40,129 

$

$

16,294 
6,450 
4,748 
6,567 
3,023 
187 
458 
557 
751 
83 
— 
733 
39,851 

6,450 
2,248 
3,785 
420 
622 
110 
122 
1,077 
14,834 
25,017 

The Company has determined that a valuation allowance is not required for any of its deferred tax assets because it believes that it is more likely than not that these assets will reverse against future taxable income.

For federal income tax purposes, the Company has a $1.8 million reserve for credit losses which remains subject to recapture. If any portion of the reserve is used for purposes other than to absorb the losses for which it was
established, approximately 150% of the amount actually used (limited to the amount of the reserve) would be subject to taxation in the year in which used. As the Company intends to use the reserve only to absorb credit losses, no
provision has been made for the $0.5 million liability that would result if 100% of the reserve were recaptured.

The Company did not have any unrecognized tax benefits accrued as income tax payables, receivables or as deferred tax items as of December 31, 2020 and 2019. The Company files U.S. federal and state income tax returns. As of

December 31, 2020, the Company is subject to examination by the Massachusetts, Rhode Island and several other state tax authorities for tax years after December 31, 2014.

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Table of Contents

(18) Stockholders' Equity

Preferred Stock

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The Company is authorized to issue 50,000,000 shares of serial preferred stock, par value $0.01 per share, from time to time in one or more series subject to limitations of law. The Board of Directors is authorized to fix the

designations, powers, preferences, limitations and rights of the shares of each such series. As of December 31, 2020, there were no shares of preferred stock issued.

Capital Distributions and Restrictions Thereon

The Company is a legal entity separate and distinct from each of the Banks and Brookline Securities Corp. The Company's primary source of revenue is dividends paid to it by the Banks and Brookline Securities Corp.

The FRB has authority to prohibit the Company from paying dividends to the Company's shareholders if such payment is deemed to be an unsafe or unsound practice. The FRB has indicated generally that it may be an unsafe or
unsound practice for bank holding companies to pay dividends unless the bank holding company's net income over the preceding year is sufficient to fund the dividends and the expected rate of earnings retention is consistent with the
organization's capital needs, asset quality and overall financial condition.

The FRB also has the authority to use its enforcement powers to prohibit the Banks from paying dividends to the Company if, in its opinion, the payment of dividends would constitute an unsafe or unsound practice. Federal law also

prohibits the payment of dividends by a bank that will result in the bank failing to meet its applicable capital requirements on a pro forma basis. In addition, a state bank that is a member of the Federal Reserve System may not declare or
pay a dividend if the total of all dividends declared during the calendar year, including the proposed dividend, exceeds the sum of the bank's net income (as reportable in its Reports of Condition and Income) during the current calendar
year and the retained net income of the prior two calendar years, unless the dividend has been approved by the FRB. Payment of dividends by a bank is also restricted pursuant to various state regulatory limitations, including the
Massachusetts Division of Banks in the case of Brookline Bank and the Banking Division of the Rhode Island Department of Business Regulation in the case of BankRI.

Common Stock Repurchases

On February 4, 2016, the Company's Board of Directors authorized a stock repurchase program to acquire up to $10.0 million of the Company's common stock over a period of twelve months ending on January 31, 2017 (the "2016

Stock Repurchase Plan"). No shares were purchased under the 2016 Stock Repurchase Plan.

On December 5, 2018, the Company’s Board of Directors authorized a stock repurchase program to acquire up to $10.0 million of the Company’s common stock over a period of twelve months ending on December 31, 2019 (the

“2018 Stock Repurchase Plan”). As of December 31, 2018, 725,583 shares of the Company's common stock were repurchased under the 2018 Stock Repurchase Plan.

On January 30, 2019, the Company’s Board of Directors authorized a stock repurchase program to acquire up to $10.0 million of the Company’s common stock over a period of eleven months ending on December 31, 2019 (the

“2019 Stock Repurchase Plan”). As of December 31, 2019, 103,758 shares of the Company’s common stock were repurchased under the 2019 Stock Repurchase Plan.

On December 4, 2019, the Company's Board of Directors approved a stock repurchase program (the “2020 Stock Repurchase Plan”) authorizing management to repurchase up to $10.0 million of the Company’s common stock over a

period of twelve months commencing on January 1, 2020. On March 9, 2020, the Board of Directors approved an increase in the repurchase amount of $10.0 million bringing the total authorized amount to $20.0 million. Effective March
24, 2020, the Company suspended the 2020 Stock Repurchase Plan. On October 28, 2020, the Board of Directors authorized the resumption of the 2020 Stock Repurchase Plan. As of December 31, 2020, the Company repurchased
1,715,730 shares at a weighted average price of $11.66.

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Table of Contents

Restricted Retained Earnings

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

As part of the stock offering in 2002 and as required by regulation, Brookline Bank established a liquidation account for the benefit of eligible account holders and supplemental eligible account holders who maintain their deposit

accounts at Brookline Bank after the stock offering. In the unlikely event of a complete liquidation of Brookline Bank (and only in that event), eligible depositors who continue to maintain deposit accounts at Brookline Bank shall be
entitled to receive a distribution from the liquidation account.

Accordingly, retained earnings of the Company are deemed to be restricted up to the balance of the liquidation account. The liquidation account balance is reduced annually to the extent that eligible depositors have reduced their

qualifying deposits as of each anniversary date. Subsequent increases in deposit account balances do not restore an account holder's interest in the liquidation account.

The liquidation account totaled $11.5 million (unaudited), $11.9 million (unaudited), and $13.0 million (unaudited) at

December 31, 2020, 2019 and 2018, respectively.

(19) Regulatory Capital Requirements

The Company's primary source of cash is dividends from the Banks and Brookline Securities Corp. The Banks are subject to certain restrictions on the amount of dividends that they may declare without prior regulatory approval. In

addition, the dividends declared cannot be in excess of the amount which would cause the Banks to fall below the minimum required for capital adequacy purposes.

The Company is a bank holding company within the meaning of the Bank Holding Company Act of 1956, as amended (the "BHCA") and as such, must comply with the capital requirements of the FRB at the consolidated level. As

member banks of the FRB, Brookline Bank and BankRI are also required to comply with the regulatory capital requirement of the FRB.

The FRB has promulgated regulations imposing minimum capital requirements for bank holding companies and state member banks as well as prompt corrective action regulations for state member banks that implement the system
of prompt corrective action established by Section 38 of the Federal Deposit Insurance Act, as amended (the "FDIA"). Under the prompt corrective action regulations in effect as of December 31, 2020, a bank is "well-capitalized" if it has:
(1) a total risk-based capital ratio of 10.0% or greater; (2) a Tier 1 risk-based capital ratio of 8.0% or greater; (3) a common equity Tier 1 capital ratio of 6.5% or greater; (4) a Tier 1 leverage ratio of 5.0% or greater; and (5) is not subject
to any written agreement, order, capital directive or prompt corrective action directive to meet and maintain a specific capital level for any capital measure.

Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company's financial statements.

Under capital adequacy guidelines, the Company and each of the Banks must meet specific capital guidelines that involve quantitative measures of the Company's and the Banks' assets, liabilities and certain off-balance sheet items as
calculated under regulatory accounting practices. In addition, the prompt corrective action rules applicable to state member banks establish a framework of supervisory actions for state member banks that are not at least adequately
capitalized. The Company's and the Banks' capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Prompt corrective action provisions are not
applicable to bank holding companies. Bank holding companies are not subject to prompt corrective action requirements. However, a bank holding company is considered "well capitalized" for purpose of the FRB's Regulation Y (which
can affect eligibility for expedited application processes to make acquisitions and engage in new activities) if the bank holding company maintains on a consolidated basis a total risk-based capital ratio of 10.0% or greater and a Tier 1 risk-
based capital ratio of 6.0% or greater and is not subject to any written agreement under capital directive or prompt correction action directive issued by the FRB to meet and maintain a specific capital level for any capital measure.

Beginning January 1, 2019, the Company and the Banks are required to maintain a capital conservation buffer composed of Common Equity Tier 1 capital equal to 2.5% of risk-weighted assets above the amounts required to be

adequately capitalized in order to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers. Capital ratios required to be considered well-capitalized exceed the
ratios required under the capital conservation buffer requirement at December 31, 2020.

As of December 31, 2020, the Company and the Banks are each under the primary regulation of, and must comply with, the capital requirements of the FRB. As of December 31, 2020, the Company and the Banks exceeded all

regulatory capital

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

requirements and were considered “well-capitalized” under prompt corrective action regulations, as amended to reflect the changes under Basel III Capital Rules. The following table presents actual and required capital ratios as of
December 31, 2020 for the Company and the Banks under the Basel III Capital Rules based on the phase-in provision of the Basel III Capital Rules and the minimum required capital levels as of January 1, 2019 when the Basel III Capital
Rules have been fully phased in.

(1)

(1)

(1)

Actual

Minimum Required for Capital
Adequacy 
Purposes

Amount

Ratio

Amount

Ratio

Minimum Required for Fully Phased
in Capital Adequacy Purposes plus
Capital Conservation Buffer
Ratio
Amount

Minimum Required to be Considered 
“Well-Capitalized” Under Prompt
Corrective Action Provisions
Amount

Ratio

$

$

$

764,157 
773,777 
773,777 
934,933 

557,310 
557,310 
557,310 
617,101 

239,337 
239,337 
239,337 
266,633 

11.04 % $
8.92 %
11.18 %
13.51 %

11.72 % $
9.82 %
11.72 %
12.97 %

11.03 % $
7.78 %
11.03 %
12.29 %

311,477 
346,985 
415,265 
553,624 

213,984 
227,010 
285,312 
380,633 

97,644 
123,052 
130,192 
173,561 

(Dollars in Thousands)

4.50 % $
4.00 %
6.00 %
8.00 %

4.50 % $
4.00 %
6.00 %
8.00 %

4.50 % $
4.00 %
6.00 %
8.00 %

484,520 
346,985 
588,292 
726,632 

332,864 
227,010 
404,192 
499,581 

151,891 
123,052 
184,439 
227,799 

7.00  %
4.00  %
8.50  %
10.50  %

7.00  % $
4.00  %
8.50  %
10.50  %

7.00  % $
4.00  %
8.50  %
10.50  %

N/A
N/A
N/A
N/A

309,088 
283,763 
380,416 
475,791 

141,042 
153,816 
173,590 
216,951 

N/A
N/A
N/A
N/A

6.50  %
5.00  %
8.00  %
10.00  %

6.50  %
5.00  %
8.00  %
10.00  %

At December 31, 2020:
Brookline Bancorp, Inc.

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(2)

(3)

Brookline Bank

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(3)

(2)

BankRI

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(3)

(2)

_______________________________________________________________________________
(1) Common equity Tier 1 capital ratio is calculated by dividing common equity Tier 1 capital by risk-weighted assets. The ratio was established as part of the implementation of Basel III, effective January 1, 2015.
(2) Tier 1 leverage capital ratio is calculated by dividing Tier 1 capital by average assets.
(3) Tier 1 risk-based capital ratio is calculated by dividing Tier 1 capital by risk-weighted assets.
(4) Total risk-based capital ratio is calculated by dividing total capital by risk-weighted assets.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following table presents actual and required capital ratios as of December 31, 2019 for the Company and the Banks under the regulatory capital rules then in effect.

Actual

Minimum Required for Capital
Adequacy 
Purposes

Amount

Ratio

Amount

Ratio

Minimum Required for Fully Phased
in Capital Adequacy Purposes plus
Capital Conservation Buffer
Ratio
Amount

Minimum Required to be Considered 
“Well-Capitalized” Under Prompt
Corrective Action Provisions
Amount

Ratio

At December 31, 2019:
Brookline Bancorp, Inc.

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(2)

(3)

Brookline Bank

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(3)

(2)

BankRI

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(2)

(3)

First Ipswich

Common equity Tier 1 capital ratio 
Tier 1 leverage capital ratio 
Tier 1 risk-based capital ratio 
(4)
Total risk-based capital ratio 

(3)

(2)

(1)

(1)

(1)

(1)

$

$

$

$

780,962 
790,527 
790,527 
927,515 

513,311 
513,311 
513,311 
555,474 

240,362 
240,362 
240,362 
258,719 

41,320 
41,320 
41,320 
43,762 

11.44 % $
10.28 %
11.58 %
13.59 %

11.44 % $
10.42 %
11.44 %
12.38 %

11.75 % $
9.97 %
11.75 %
12.65 %

13.45 % $
8.80 %
13.45 %
14.24 %

307,197 
307,598 
409,599 
545,999 

201,914 
197,048 
269,219 
358,949 

92,054 
96,434 
122,738 
163,617 

13,825 
18,782 
18,433 
24,585 

(Dollars in Thousands)

4.50 % $
4.00 %
6.00 %
8.00 %

4.50 % $
4.00 %
6.00 %
8.00 %

4.50 % $
4.00 %
6.00 %
8.00 %

4.50 % $
4.00 %
6.00 %
8.00 %

477,861 
307,598 
580,266 
716,623 

314,089 
197,048 
381,394 
471,121 

143,194 
96,434 
173,879 
214,747 

21,505 
18,782 
26,113 
32,268 

7.00  %
4.00  %
8.50  %
10.50  %

7.00  % $
4.00  %
8.50  %
10.50  %

7.00  % $
4.00  %
8.50  %
10.50  %

7.00  % $
4.00  %
8.50  %
10.50  %

N/A
N/A
N/A
N/A

291,654 
246,310 
358,959 
448,687 

132,966 
120,543 
163,651 
204,521 

19,969 
23,477 
24,577 
30,732 

N/A
N/A
N/A
N/A

6.50  %
5.00  %
8.00  %
10.00  %

6.50  %
5.00  %
8.00  %
10.00  %

6.50  %
5.00  %
8.00  %
10.00  %

_______________________________________________________________________________
(1) Common equity Tier 1 capital ratio is calculated by dividing common equity Tier 1 capital by risk-weighted assets. The ratio was established as part of the implementation of Basel III, effective January 1, 2015.
(2) Tier 1 leverage capital ratio is calculated by dividing Tier 1 capital by average assets.
(3) Tier 1 risk-based capital ratio is calculated by dividing Tier 1 capital by risk-weighted assets.
(4) Total risk-based capital ratio is calculated by dividing total capital by risk-weighted assets.

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(20) Employee Benefit Plans

Postretirement Benefits

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Postretirement benefits are provided for part of the annual expense of health insurance premiums for certain retired employees and their dependents. No contributions are made by the Company to invest in assets allocated for the

purpose of funding this benefit obligation. The following table presents the change in plan assets and change in benefit obligation: 

2020

Year Ended 

December 31,

2019
(In Thousands)

2018

Change in plan assets:

Fair value of plan assets at beginning of year
Employer contributions
Benefits paid

Fair value of plan assets at end of year

Change in benefit obligation:

Benefit obligation at beginning of year
Service cost
Interest cost
Estimated benefits paid
Actuarial loss (gain)

Benefit obligation at end of year

Funded status at end of year

Accumulated benefit obligation at end of year

$

$

$

$

$

$

— 
38 
(38)
— 

1,757 
55 
56 
(38)
265 
2,095 

2,095 

2,095 

$

$

$

$

$

$

— 
32 
(32)
— 

1,490 
54 
60 
(32)
185 
1,757 

1,757 

1,757 

The liability for the postretirement benefits included in accrued expenses and other liabilities was $2.1 million, $1.8 million, and $1.5 million as of December 31, 2020, 2019 and 2018, respectively.

The following table presents the components of net periodic postretirement benefit cost and other amounts recognized in other comprehensive income:

Net periodic benefit expense:

Service cost
Interest cost
Prior service credit
Actuarial gain

Net periodic benefit expense

Changes in postretirement benefit obligation recognized in other comprehensive income:
Net actuarial (loss) gain
Prior service credit

Total pre-tax changes in postretirement benefit obligation recognized in other comprehensive income

F-74

2020

Year Ended 

December 31,

2019
(In Thousands)

55 
56 
(21)
— 
90 

(227)
(21)
(248)

$

$

$

$

54 
60 
(21)
(27)
66 

(206)
(21)
(227)

$

$

$

$

$

$

$

$

$

$

$

$

$

— 
31 
(31)
— 

1,534 
70 
59 
(31)
(142)
1,490 

1,490 

1,490 

70 
59 
(21)
— 
108 

142 
(21)
121 

2018

 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The discount rate used to determine the actuarial present value of projected postretirement benefit obligations was 2.44% in 2020, 3.19% in 2019 and 4.22% in 2018. The estimated prior service credit that will be amortized from

accumulated other comprehensive income into net periodic benefit cost in 2021 is $115 thousand.

The actual health care trend used to measure the accumulated postretirement benefit obligation in 2020 for plan participants below age 65 and for plan participants over age 65 was 1.9% and 7.1%, respectively. In 2019, the rate for
plan participants below age 65 and for plan participants over age 65 was 13.3% and 1.2%, respectively. The health care trend rates for 2019 and 2020 are based on actual changes in medical premium rates for those years. The rates to be
used in 2021 through 2025 are expected to be in the range of 5.7% to 4.9% and to decline gradually thereafter to 4.5%. Assumed health care trend rates may have a significant effect on the amounts reported for the postretirement benefit
plan. A 1% change in assumed health care cost trend rates would have the following effects:

Effect on total service and interest cost components of net periodic postretirement benefit costs

Effect on the accumulated postretirement benefit obligation

401(k) Plan

Year Ended  

December 31, 2020

$

1% Increase

1% Decrease

(In Thousands)

$

25 
431 

(20)
(344)

The Company administers one 401(k) plan, which is a qualified, tax-exempt profit-sharing plan with a salary deferral feature under Section 401(k) of the Internal Revenue Code. Each employee, excluding temporary employees, who
has attained the age of 21 is eligible to participate in the 401(k) plan by making voluntary contributions, subject to certain limits based on federal tax laws. The Company makes a matching contribution of the amount contributed by eligible
employees, up to 5% of the employee's yearly compensation. Expenses associated with the plans were $3.3 million in 2020, $3.1 million in 2019, and $3.2 million in 2018.

Nonqualified Deferred Compensation Plan

The Company also maintains a Nonqualified Deferred Compensation Plan (the "Nonqualified Plan") under which certain participants may contribute the amounts they are precluded from contributing to the Company's 401(k) plan
because of the qualified plan limitations, and additional compensation deferrals that may be advantageous for personal income tax or other planning reasons. Expenses associated with the Nonqualified Plan in 2020, 2019 and 2018 were
$239.5 thousand, $236.2 thousand, and $181.1 thousand, respectively. Accrued liabilities associated with the Nonqualified Plan in 2020, 2019, and 2018 were $36.1 thousand, $5.5 thousand, and $5.5 thousand, respectively.

Supplemental Executive Retirement Agreements

The Company acquired two Supplemental Executive Retirement Plans (the "SERPs") as part of its acquisition of BankRI. The Company maintains the SERPs for certain senior executives who are entitled to an annual retirement
benefit. As of December 31, 2020, there were 14 participants in the SERPs. The Company funded a Rabbi Trust to provide a partial funding source for the Company's liabilities under the SERPs. In 2016, a portion of the Company's BOLI
assets were transferred into the Rabbi Trust as a replacement for the funds previously held in the Rabbi Trust. In 2020, additional BOLI assets were transferred into the Rabbi Trust. The Company records the liability for the SERPs based
on an actuarial calculation in accordance with GAAP, and no actuarial gains and losses are recognized.

Total expenses for benefits payable under the SERPs for the years ended December 31, 2020, and 2019 were $1.5 million and $1.1 million, respectively. Aggregate benefits payable included in accrued expenses and other liabilities

as of December 31, 2020 and 2019 were $13.8 million and $12.8 million, respectively.

The nominal discount rate used to determine the actuarial present value of projected benefits under the agreements was 2.50% and 3.25% in the years 2020 and 2019, respectively.

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Table of Contents

Employee Stock Ownership Plan

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Brookline Bank established an Employee Stock Ownership Plan ("ESOP") on November 1, 1997. The Company's ESOP loan to Brookline Bank to purchase 546,986 shares of Company common stock is payable in quarterly
installments over 30 years, bears interest at 8.50% per annum, matures December 31, 2021, and can be prepaid without penalty. The loan is repaid to the Company in the form of cash contributions from Brookline Bank, subject to federal
tax law limits. The outstanding balance of the loan as of December 31, 2020 and 2019, was $0.5 million and $0.8 million, respectively, and is eliminated in consolidation.

Shares of common stock used as collateral to secure the loan are released and available for allocation to eligible employees as the principal and interest on the loan is paid. The ESOP was amended in 2015 to permit all eligible

participants in the ESOP as of July 1, 2015 or any eligible participants after July 1, 2015 to be fully vested in the ESOP upon the date of eligibility.

Dividends on released shares are credited to the participants' ESOP accounts. Dividends on unallocated shares of common stock are generally applied towards payment of the loan. ESOP shares committed to be released are

considered outstanding in determining earnings per share.

As of December 31, 2020 and 2019, the ESOP held 51,114 and 79,548 unallocated shares, respectively at an aggregate cost of $0.3 million and $0.4 million, respectively. The market value of such shares as of December 31, 2020

and 2019 was $0.6 million and $1.3 million, respectively. Compensation and employee benefits expense related to the ESOP was $0.3 million in 2020, $0.5 million in 2019 and $0.5 million in 2018, based on the commitment to release to
eligible employees 28,434 shares in 2020, 30,402 shares in 2019 and 32,382 shares in 2018.

Share-Based Compensation Plans

Under the Brookline Bancorp, Inc. 2014 Equity Incentive Plan (the “2014 Plan”), approved by stockholders on May 7, 2014, the Company may award stock options, stock appreciation rights, restricted stock, restricted stock units,
unrestricted stock, performance share awards, dividend equivalent rights and cash-based awards to officers, employees, non-employee directors and consultants of the Company. The maximum number of shares that may be issued under
the 2014 Plan is 1,750,000.

Of the awarded shares, generally 50% vest ratably over three years with one-third of such shares vesting at each of the first, second and third anniversary dates of the awards. The remaining 50% of each award has a cliff vesting
schedule and vest three years after the award date based on the level of the Company's achievement of identified performance targets in comparison to the level of achievement of such identified performance targets by a defined peer group
comprised of 14 financial institutions. The specific performance measure targets are approved by annually by the Compensation Committee and are discussed in the Company's Proxy Statement. If a grantee leaves the Company prior to the
third anniversary date of an award, any unvested shares are forfeited. Dividends declared with respect to shares awarded will be held by the Company and paid to the grantee only when the shares vest.

Shares issued upon vesting may be either authorized but unissued shares or reacquired shares held by the Company as treasury shares. Any shares not issued because vesting requirements are not met will be retired back to treasury

and be made available again for issuance under the Plans.

Total expense for the 2014 Plan was $2.5 million in 2020, $2.4 million in 2019 and $2.5 million in 2018, respectively. Total income tax benefits on vested awards was $0.1 million in 2019, and $1.2 million in 2018. There were no

income tax benefits on the 2020 vesting due to the stock price at the vesting date being lower than the stock price at the grant date. Dividends paid on unvested awards under the 2014 Plan and the 2011 Plan were $0.2 million in 2020, $0.1
million in 2019, and $0.2 million in 2018.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The following table presents information about the Company's restricted stock awards as of and for the year ending December 31, 2020: 

Restricted Stock Awards:
Outstanding at December 31, 2019

Granted
Vested
Forfeited / Canceled
Added by Performance Factor

Outstanding at December 31, 2020
Unrecognized compensation cost
Weighted average remaining recognition period (months)

Stock Options

Restricted Stock Awards Outstanding

per Share
(Dollars in Thousands, Except Per Share Amounts)

Weighted Average Price 

406,450 
268,936 
(179,806)
(39,883)
3,103 
458,800 

$

$

15.41 
9.56 
14.91 
13.87 
14.65 
12.31 

$

3,021 
19 months

Shares issued upon the exercise of a stock option may be either authorized but unissued shares or reacquired shares held by the Company as treasury shares. Any shares subject to an award which expire or are terminated unexercised

will again be available for issuance under the plans.

The exercise price of options awarded is the fair market value of the common stock of the Company on the date the award is made. Certain of the options include a reload feature whereby an optionee exercising an option by delivery

of shares of common stock would automatically be granted an additional option at the fair market value of stock when such additional option is granted equal to the number of shares so delivered. If an individual to whom a stock option
was granted ceases to maintain continuous service by reason of normal retirement, death or disability, or following a change in control, all options and rights granted and not fully exercisable become exercisable in full upon the happening
of such an event and shall remain exercisable for a period ranging from 3 to 5 years. There are currently no outstanding options.

(21) Fair Value of Financial Instruments

A description of the valuation methodologies used for assets and liabilities measured at fair value on a recurring and non-recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy, is

set forth below. There were no changes in the valuation techniques used during 2020 and 2019.

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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Assets and Liabilities Recorded at Fair Value on a Recurring Basis

The following table set forth the carrying value of assets and liabilities measured at fair value on a recurring basis at December 31, 2020 and 2019:

Assets:

Investment securities available-for-sale:
GSE debentures
GSE CMOs
GSE MBSs
Corporate debt obligations
U.S. Treasury bonds
Foreign government obligations

Total investment securities available-for-sale

Equity securities held-for-trading
Interest rate derivatives
Loan level derivatives
Risk participation-out agreements
Foreign exchange contracts

Liabilities:

Loan level derivatives
Risk participation-in agreements
Foreign exchange contracts

Level 1

Carrying Value as of December 31, 2020
Level 3
Level 2

(In Thousands)

Total

$

$

$

$

— 
— 
— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 

$

$

$

$

278,645 
46,028 
323,609 
23,467 
73,577 
496 
745,822 

526 
8 
131,328 
1,843 
156 

131,328 
361 
148 

$

$

$
$

$

— 
— 
— 
— 
— 
— 
— 

— 
— 
— 
— 
— 

— 
— 
— 

278,645 
46,028 
323,609 
23,467 
73,577 
496 
745,822 

526 
8 
131,328 
1,843 
156 

131,328 
361 
148 

$

$

$

$

F-78

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Assets:

Investment securities available-for-sale:
GSE debentures
GSE CMOs
GSE MBSs
SBA commercial loan asset-backed securities
Corporate debt obligations
U.S. Treasury bonds

Total investment securities available-for-sale

Equity securities held for trading
Loan level derivatives
Risk participation-out agreements
Foreign exchange contracts

Liabilities:

Loan level derivatives
Risk participation-in agreements
Foreign exchange contracts

Investment Securities Available-for-Sale

Level 1

Carrying Value as of December 31, 2019
Level 3
Level 2

(In Thousands)

Total

$

$

$

$

—  $
— 
— 
— 
— 
— 
—  $

2,569  $
— 
— 
— 

—  $
— 
— 

185,803 
85,932 
153,343 
34 
28,986 
44,897 
498,995 

$

$

1,012  $
59,365 
1,229 
54 

59,365  $
283 
53 

$

$

$

$

— 
— 
— 
— 
— 
— 
— 

— 
— 
— 
— 

— 
— 
— 

185,803 
85,932 
153,343 
34 
28,986 
44,897 
498,995 

3,581 
59,365 
1,229 
54 

59,365 
283 
53 

The fair value of investment securities is based principally on market prices and dealer quotes received from third-party and nationally-recognized pricing services for identical investment securities such as U.S. Treasury and agency
securities. During the third quarter of 2018, the Company re-designated all equity securities as held-for-trading and they are included in levels 1 and 2. These prices are validated by comparing the primary pricing source with an alternative
pricing source when available. When quoted market prices for identical securities are unavailable, the Company uses market prices provided by independent pricing services based on recent trading activity and other observable
information, including but not limited to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE mortgage-related securities, SBA
commercial loan asset backed securities, corporate debt securities, and trust preferred securities, all of which are included in Level 2. As of December 31, 2020 and December 31, 2019, no investment securities were valued using pricing
models included in Level 3.

Additionally, management reviews changes in fair value from period to period and performs testing to ensure that prices received from the third parties are consistent with management's expectation of the market. Changes in the

prices obtained from the pricing service are analyzed from month to month, taking into consideration changes in market conditions including changes in mortgage spreads, changes in U.S. Treasury security yields and changes in generic
pricing of 15-year and 30-year securities. Additional analysis may include a review of prices provided by other independent parties, a yield analysis, a review of average life changes using Bloomberg analytics and a review of historical
pricing for a particular security.

Equity Securities Held-for-Trading

The fair value of equity securities held-for-trading is based principally on market prices and dealer quotes received from third-party and nationally-recognized pricing services. The Company's equity securities are priced this way and

are included in Level 1 and Level 2. These prices are validated by comparing the primary pricing source with an alternative pricing source when available.

Derivatives and Hedging Instruments

The fair value of interest rate derivatives designated as hedging instruments, loan level derivatives, risk participation agreements (RPA in/out), and foreign exchange contracts represent a Level 2 valuation and are based on settlement

values

F-79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

adjusted for credit risks associated with the counterparties and the Company and observable market interest rate curves and foreign exchange rates where applicable. Credit risk adjustments consider factors such as the likelihood of default
by the Company and its counterparties, its net exposures and remaining contractual life. To date, the Company has not realized any losses due to a counterparty's inability to pay any net uncollateralized position. Refer also to Note 16,
"Derivatives and Hedging Activities."

There were no transfers between levels for assets and liabilities recorded at fair value on a recurring basis during 2020 or 2019.

Assets and Liabilities Recorded at Fair Value on a Non-Recurring Basis

Assets and liabilities measured at fair value on a non-recurring basis as of December 31, 2020 and 2019 are summarized below:

Assets measured at fair value on a non-recurring basis:

Collateral-dependent impaired loans and leases
OREO
Repossessed assets

Total assets measured at fair value on a non-recurring basis

Assets measured at fair value on a non-recurring basis:

Collateral-dependent impaired loans and leases
Repossessed assets

Total assets measured at fair value on a non-recurring basis

Collateral-Dependent Impaired Loans and Leases

Level 1

Level 2

Level 3

Total

Carrying Value as of December 31, 2020

$

$

— 
— 
— 
— 

$

$

(In Thousands)

— 
— 
1,100 
1,100 

$

$

3,445 
5,415 
— 
8,860 

$

$

Level 1

Carrying Value as of December 31, 2019
Level 3
Level 2

(In Thousands)

Total

$

$

— 
— 
— 

$

$

$

— 
2,631 
2,631  $

2,243 
— 
2,243 

$

$

3,445 
5,415 
1,100 
9,960 

2,243 
2,631 
4,874 

For nonperforming loans and leases where the credit quality of the borrower has deteriorated significantly, fair values of the underlying collateral were estimated using purchase and sales agreements (Level 2), or comparable sales or

recent appraisals (Level 3), adjusted for selling costs and other expenses.

Other Real Estate Owned

The Company records OREO at the lower of cost or fair value. In estimating fair value, the Company utilizes purchase and sales agreements (Level 2) or comparable sales, recent appraisals or cash flows discounted at an interest rate

commensurate with the risk associated with these cash flows (Level 3), adjusted for selling costs and other expenses.

Repossessed Assets

Repossessed assets are carried at estimated fair value less costs to sell based on auction pricing (Level 2).

The table below presents quantitative information about significant unobservable inputs (Level 3) for assets measured at fair value on a recurring basis at the dates indicated.

Fair Value

Valuation Technique

Collateral-dependent impaired loans and leases
Other real estate owned

At December 31, 2020

At December 31, 2019

$

(Dollars in Thousands)
3,445 
5,415 

$

2,243 
— 

Appraisal of collateral 
Appraisal of collateral 

(1)

(1)

_______________________________________________________________________________
(1)

 Fair value is generally determined through independent appraisals of the underlying collateral. The Company may also use another available source of collateral assessment to determine a reasonable estimate of the fair value of the collateral. Appraisals may be adjusted by

management for qualitative factors such as economic factors and estimated liquidation expenses. The range of the unobservable inputs used may vary but is generally 0% - 10% on the discount for costs to sell and 0% - 15% on appraisal adjustments.

Summary of Estimated Fair Values of Financial Instruments

The following table presents the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company's financial instruments at the dates indicated. This table excludes financial instruments for which the
carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, restricted equity securities, and accrued interest receivable. Financial liabilities for which
the fair value approximates carrying value include non-maturity deposits, short-term borrowings, and accrued interest payable. There were no transfers between levels during 2020.

At December 31, 2020
Financial assets:

Loans and leases, net
Restricted equity securities

Financial liabilities:

Certificates of deposit
Borrowed funds

At December 31, 2019
Financial assets:

Investment securities held-to-maturity:
GSE debentures
GSE MBSs
Municipal obligations
Foreign government obligations
Loans and leases, net
Restricted equity securities

Financial liabilities:

Certificates of deposit
Borrowed funds

Investment Securities Held-to-Maturity

Carrying 
Value

Estimated 
Fair Value

Level 1 
Inputs
(In Thousands)

Fair Value Measurements
Level 2 
Inputs

Level 3 
Inputs

$

7,155,174 
49,786 

2,083,907 
820,247 

31,228  $
9,360 
45,692 
500 
6,676,734 
53,818 

2,021,642 
902,749 

7,116,854 
49,786 

2,092,867 
818,681 

31,290  $

9,279 
46,514 
478 
6,697,583 
53,818 

2,026,683 
902,670 

— 
— 

— 
— 

— 
— 
— 
— 
— 
— 

— 
— 

$

— 
— 

2,092,867 
818,681 

$

31,290 
9,279 
46,514 
— 
— 
— 

2,026,683 
902,670 

7,116,854 
49,786 

— 
— 

— 
— 
— 
478 
6,697,583 
53,818 

— 
— 

The fair values of certain investment securities held-to-maturity are estimated using market prices provided by independent pricing services based on recent trading activity and other observable information, including but not limited

to market interest-rate curves, referenced credit spreads and estimated prepayment speeds where applicable. These investments include GSE debentures, GSE MBSs, and municipal obligations, all of which are included in Level 2.
Additionally, fair values of foreign government obligations are estimated using pricing models and are considered to be Level 3.

F-80

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Loans and Leases

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

The fair values of performing loans and leases was estimated by segregating the portfolio into its primary loan and lease categories—commercial real estate mortgage, multi-family mortgage, construction, commercial, equipment
financing, condominium association, residential mortgage, home equity and other consumer. These categories were further disaggregated based upon significant financial characteristics such as type of interest rate (fixed / variable) and
payment status (current / past-due). Using the exit price valuation method, the Company discounts the contractual cash flows for each loan category using interest rates currently being offered for loans with similar terms to borrowers of
similar quality and incorporates estimates of future loan prepayments.

Restricted Equity Securities

The fair values of certain restricted equity securities are estimated using observable inputs adjusted for other unobservable information, including but not limited to probability assumptions and similar discounts where applicable.

These restricted equity securities are considered to be Level 3.

Deposits

The fair values of deposit liabilities with no stated maturity (demand, NOW, savings and money market savings accounts) are equal to the carrying amounts payable on demand. The fair value of certificates of deposit represents
contractual cash flows discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. The fair value estimates for deposits do not include the benefit that results from the low-cost funding
provided by the Company's core deposit relationships (deposit-based intangibles).

Borrowed Funds

The fair value of federal funds purchased is equal to the amount borrowed. The fair value of FHLBB advances and repurchase agreements represents contractual repayments discounted using interest rates currently available for

borrowings with similar characteristics and remaining maturities. The fair values reported for retail repurchase agreements are based on the discounted value of contractual cash flows. The discount rates used are representative of
approximate rates currently offered on borrowings with similar characteristics and maturities. The fair values reported for subordinated deferrable interest debentures are based on the discounted value of contractual cash flows. The
discount rates used are representative of approximate rates currently offered on instruments with similar terms and maturities.

F-81

Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(22) Condensed Parent Company Financial Statements

Condensed Parent Company Balance Sheets as of December 31, 2020 and 2019 and Statements of Income for the years ended December 31, 2020, 2019 and 2018 are as follows. The Statement of Stockholders' Equity is not

presented below as the parent company's stockholders' equity is that of the consolidated company.

Balance Sheets

ASSETS

LIABILITIES AND STOCKHOLDERS' EQUITY

Cash and due from banks
Short-term investments

Total cash and cash equivalents
Equity securities held-for-trading
ESOP loan to Brookline Bank
Intercompany loan to Brookline Bank
Restricted equity securities
Premises and equipment, net
Deferred tax asset
Investment in subsidiaries, at equity
Goodwill
Other assets

Total assets

Borrowed funds
Accrued expenses and other liabilities

Total liabilities

Stockholders' equity:

Common stock, $0.01 par value; 200,000,000 shares authorized; 85,177,172 shares issued and 85,177,172 shares issued, respectively
Additional paid-in capital
Retained earnings, partially restricted
Accumulated other comprehensive loss
Treasury stock, at cost; 6,525,783 shares and 5,003,127 shares, respectively
Unallocated common stock held by ESOP; 51,114 shares and 79,548 shares, respectively

Total stockholders' equity

Total liabilities and stockholders' equity

F-82

At December 31,

2020

2019

(In Thousands)

$

$

$

$

40,265  $
32 
40,297 
— 
502 
10,000 
252 
1,412 
1,818 
939,000 
35,267 
13,871 
1,042,419 

$

83,746  $
16,895 
100,641 

852 
737,178 
264,892 
16,490 
(77,343)
(291)
941,778 
1,042,419 

$

35,736 
33 
35,769 
2,569 
752 
30,000 
252 
2,403 
1,742 
924,352 
35,267 
12,116 
1,045,222 

83,591 
16,025 
99,616 

852 
736,601 
265,376 
2,283 
(59,073)
(433)
945,606 
1,045,222 

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Interest and dividend income:

Dividend income from subsidiaries
Marketable and restricted equity securities
ESOP loan to Brookline Bank
Intercompany loan to Brookline Bank
Total interest and dividend income

Interest expense:
Borrowed funds
Net interest income
Non-interest income:

Gain on securities, net
Other

Total non-interest income

Non-interest expense:

(1)

(1)

Compensation and employee benefits 
Occupancy
Equipment and data processing 
Directors' fees
Franchise taxes
Insurance
Professional services
Advertising and marketing
Merger and acquisition expense
Other 

(1)

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Statements of Income

2020

Year Ended December 31,
2019
(In Thousands)

2018

42,000  $
52 
56 
330 
42,438 

5,108 
37,330 

(1,306)
123 
(1,183)

403 
1,689 
(745)
433 
250 
570 
841 
35 
— 
(1,571)
1,905 
34,242 
(1,427)
35,669 
11,966 
47,635  $

29,000 
147 
77 
1,183 
30,407 

5,274 
25,133 

467 
— 
467 

(507)
1,589 
(770)
461 
306 
543 
548 
31 
— 
(1,139)
1,062 
24,538 
(969)
25,507 
62,210 
87,717 

$

$

19,000 
37 
98 
1,722 
20,857 

5,223 
15,634 

71 
16 
87 

345 
1,586 
(798)
417 
321 
534 
364 
19 
452 
(1,140)
2,100 
13,621 
(1,976)
15,597 
67,465 
83,062 

$

$

Total non-interest expense

Loss before income taxes
Credit for income taxes

Income before equity in undistributed income of subsidiaries
Equity in undistributed income of subsidiaries

Net income

_______________________________________________________________________________
(1) The Parent Company received a net benefit in 2020, 2019 and 2018 from the intercompany allocation of expense that is eliminated in consolidation.

F-83

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Statements of Cash Flows

Cash flows from operating activities:

Net income attributable to parent company
Adjustments to reconcile net income to net cash provided from operating activities:
Equity in undistributed income of subsidiaries
Depreciation of premises and equipment
Amortization of debt issuance costs
Equity securities held-for-trading
Other operating activities, net

Net cash provided from (used for) operating activities

Cash flows from investing activities:

Repayment of ESOP loan by Brookline Bank
Pay down (issuance) of intercompany loan to Brookline Bank
Purchase of restricted equity securities
Purchase of premises and equipment

Net cash provided from (used for) investing activities

Cash flows from financing activities:

Common stock issued for acquisition
Redemption of noncontrolling interest in subsidiary
Payment of dividends to owners of noncontrolling interest in subsidiary
Payment of dividends on common stock

Net cash (used for) provided from financing activities

Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of year

Cash and cash equivalents at end of year
Supplemental disclosures of cash flow information:

Acquisition of First Commons Bank, N.A.:
Fair value of assets acquired, net of cash and cash equivalents acquired
Fair value of liabilities assumed

F-84

2020

Year Ended December 31,

2019
(In Thousands)

2018

$

47,635  $

87,717 

$

(11,966)
1,546 
100 
2,569 
(18,655)
21,229 

250 
20,000 
— 
(555)
19,695 

— 
— 
— 
(36,396)
(36,396)
4,528 
35,769 
40,297  $

$

— 
— 

(62,210)
2,824 
100 
666 
18,296 
47,393 

250 
10,000 
(151)
(909)
9,190 

— 
(18,470)
(930)
(35,110)
(54,510)
2,073 
33,696 
35,769 

— 
— 

$

$

$

$

83,062 

(67,465)
3,073 
100 
(3,235)
(50,014)
(34,479)

250 
40,000 
(1)
(1,359)
38,890 

55,183 
— 
— 
(31,441)
23,742 
28,153 
5,543 
33,696 

292,025 
278,988 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

(23) Quarterly Results of Operations (Unaudited)

Interest and dividend income
Interest expense

Net interest income

Provision for credit losses

Net interest income after provision for credit losses

Loan level derivative income, net
(Loss) gain on investment securities, net
Gain on sales of loans and leases held-for-sale
Other non-interest income
Amortization of identified intangible assets
Other non-interest expense

Income before provision for income taxes

Provision for income taxes

Net income attributable to Brookline Bancorp, Inc. 

Earnings per share:

Basic
Diluted

Average common shares outstanding:

Basic
Diluted

Common stock price:

High
Low

Dividends per share

Fourth

Third

Second

First

(Dollars in Thousands Except Per Share Data)

2020 Quarters

80,467  $
12,242 
68,225 
(2,103)
70,328 
145 
— 
67 
4,007 
(312)
(39,728)
34,507 
7,846 
26,661  $

$

0.34 
0.34 

80,704  $
14,766 
65,938 
4,528 
61,410 
527 
54 
632 
3,649 
(312)
(40,635)
25,325 
6,646 
18,679  $

0.24  $
0.24 

78,533,351 
78,680,873 

78,948,139 
79,055,901 

12.40  $
8.68 
0.115  $

10.56  $

8.23 

0.115  $

82,124 
17,836 
64,288 
5,347 
58,941 
1,440 
586 
299 
3,910 
(311)
(38,798)
26,067 
6,496 
19,571 

0.25 
0.25 

78,849,282 
79,015,274 

12.57 
8.51 
0.115 

$

$

$

$

$

83,522 
21,810 
61,712 
54,114 
7,598 
2,156 
1,330 
120 
5,722 
(336)
(40,412)
(23,822)
(6,546)
(17,276)

(0.22)
(0.22)

79,481,462 
79,665,774 

16.43 
9.97 
0.115 

$

$

$

$

$

F-85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

Interest and dividend income
Interest expense

Net interest income

Provision for credit losses

Net interest income after provision for credit losses

Loan level derivative income, net
Gain on sales of investment securities, net
Gain on sales of loans and leases held-for-sale
Other non-interest income
Amortization of identified intangible assets
Other non-interest expense

Income before provision for income taxes

Provision for income taxes

Net income before noncontrolling interest in subsidiary

Less net income attributable to noncontrolling interest in subsidiary

Net income attributable to Brookline Bancorp, Inc. 

Earnings per share:

Basic
Diluted

Average common shares outstanding:

Basic
Diluted

Common stock price:

High
Low

Dividends per share

(24) Revenue from Contracts with Customers

Overview

Fourth

Third

Second

First

(Dollars in Thousands Except Per Share Data)

2019 Quarters

$

$

$

$

$

87,450  $
23,519 
63,931 
3,602 
60,329 
2,494 
133 
309 
4,820 
(420)
(38,395)
29,270 
7,087 
22,183 
— 
22,183  $

$

0.28 
0.28 

87,906  $
24,670 
63,236 
871 
62,365 
2,251 
(116)
550 
5,244 
(421)
(39,770)
30,103 
7,507 
22,596 
— 
22,596  $

0.28  $
0.28 

79,682,724 
79,845,447 

79,700,403 
79,883,510 

16.83  $
14.36 
0.115  $

15.39  $
13.73 
0.110  $

87,184 
24,050 
63,134 
3,757 
59,377 
1,772 
357 
561 
4,788 
(420)
(39,184)
27,251 
6,780 
20,471 
— 
20,471 

0.26 
0.26 

79,669,922 
79,886,292 

15.92 
14.35 
0.110 

$

$

$

$

$

85,086 
22,087 
62,999 
1,353 
61,646 
1,745 
134 
289 
4,462 
(402)
(38,469)
29,405 
6,895 
22,510 
43 
22,467 

0.28 
0.28 

79,658,583 
79,843,578 

16.23 
13.90 
0.105 

Revenue from contracts with customers in the scope of Accounting Standards Codification (“ASC”) ("Topic 606") is measured based on the consideration specified in the contract with a customer and excludes amounts collected on

behalf of third parties. The Company recognizes revenue from contracts with customers when it satisfies its performance obligations.

The Company’s performance obligations are generally satisfied as services are rendered and can either be satisfied at a point in time or over time. Unsatisfied performance obligations at the report date are not material to our

consolidated financial statements.

In certain cases, other parties are involved with providing services to our customers. If the Company is a principal in the transaction (providing services itself or through a third party on its behalf), revenues are reported based on the
gross consideration received from the customer and any related expenses are reported in gross noninterest expense. If the Company is an agent in the transaction (referring to another party to provide services), the Company reports its net
fee or commission retained as revenue.

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Table of Contents

BROOKLINE BANCORP, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Continued)

A substantial portion of the Company’s revenue is specifically excluded from the scope of Topic 606. This exclusion is associated with financial instruments, including interest income on loans and investment securities, in addition

to loan derivative income and gains on loan and investment sales. For the revenue that is in-scope of Topic 606, the following is a description of principal activities from which the Company generates its revenue from contracts with
customers, separated by the timing of revenue recognition.

Revenue Recognized at a Point in Time

The Company recognizes revenue that is transactional in nature and such revenue is earned at a point in time. Revenue that is recognized at a point in time includes card interchange fees (fee income related to debit card

transactions), ATM fees, wire transfer fees, overdraft charge fees, and stop-payment and returned check fees. Additionally, revenue is collected from loan fees, such as letters of credit, line renewal fees and application fees. Such revenue
is derived from transactional information and is recognized as revenue immediately as the transactions occur or upon providing the service to complete the customer’s transaction.

Revenue Recognized Over Time

The Company recognizes revenue over a period of time, generally monthly, as services are performed and performance obligations are satisfied. Such revenue includes commissions on investments, insurance sales and service

charges on deposit accounts. Fee revenue from service charges on deposit accounts represents the service charges assessed to customers who hold deposit accounts at the Banks.

(25) Subsequent Events

The CARES Act appropriated $349 billion for “paycheck protection loans” through the U.S. Small Business Administration's (“SBA’s”) Paycheck Protection Program (“PPP”). The amount appropriated was subsequently increased

to $659 billion. Loans under the PPP that meet SBA requirements may be forgiven in certain circumstances, and are 100% guaranteed by SBA. Additionally, the Economic Aid Act enacted on December 27, 2020 provides for a second
round of PPP loans (the “PPP-2”). The Banks are participating in the PPP-2 as of January 27, 2021. PPP loans are fully guaranteed by the U.S. government, have an initial term of up to five years and earn interest at a rate of 1%. We
currently expect a significant portion of these loans will ultimately be forgiven by the SBA in accordance with the terms of the program. In conjunction with the PPP, the FRB has created a lending facility for qualified financial
institutions. The FRB's Paycheck Protection Program Liquidity Facility ("PPPLF") extends credit to depository institutions with a term of up to five years at an interest rate of 0.35%. Only loans issued under the PPP can be pledged as
collateral to access the facility. The Company is participating in the PPPLF program. As of the filing date, the Banks have obtained SBA approval for 358 PPP-2 loans totaling $83 million. All PPP-2 loans have been funded.

F-87

CERTIFICATE OF INCORPORATION
OF
BROOKLINE BANCORP, INC.

FIRST: The name of the Corporation is Brookline Bancorp, Inc. (hereinafter referred to as the "Corporation").

SECOND: The address of the registered office of the Corporation in the State of Delaware is Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County of New Castle. The name of the
registered agent at that address is The Corporation Trust Company.

THIRD: The purpose of the Corporation is to engage in any lawful act or activity for which a corporation may be organized under the General Corporation Law of Delaware.

FOURTH:

A. The total number of shares of all classes of stock which the Corporation shall have authority to issue is two hundred fifty million (250,000,000) consisting of:

1. Fifty million (50,000,000) shares of Preferred Stock, par value one cent ($.01) per share (the "Preferred Stock"); and

2. Two Hundred million (200,000,000) shares of Common Stock, par value one cent ($.01) per share (the "Common Stock").

B. The Board of Directors is authorized, subject to any limitations prescribed by law, to provide for the issuance of the shares of Preferred Stock in series, and by filing a certificate pursuant to the
applicable law of the State of Delaware (such certificate being hereinafter referred to as a
"Preferred Stock Designation"), to establish from time to time the number of shares to be included in each such series, and to fix the designation, powers, preferences, and rights of the shares of each
such series and any qualifications, limitations or restrictions thereof. The number of authorized
shares of Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority of the Common Stock,
without a vote of the holders of the Preferred Stock, or of any series thereof, unless a vote of any such holders is required pursuant to the terms of any Preferred Stock Designation.

C. 1. Notwithstanding any other provision of this Certificate of Incorporation, in no event shall any record owner of any outstanding Common Stock which is beneficially owned, directly or indirectly,
by a person who, as of any record date for the determination of stockholders entitled to vote on any matter, beneficially owns in excess of 10% of the then-outstanding shares of Common Stock (the
"Limit"), be entitled, or permitted to any vote in respect of the shares held in excess of the Limit. The number of votes which may be cast by any record owner by virtue of the provisions hereof in
respect of Common Stock beneficially owned by such person owning shares in excess of the Limit shall be a number equal to the total number of votes which a single record owner of all Common
Stock owned by such person would be entitled to cast, multiplied by a fraction, the numerator of which is the number of shares of such class or series which are both beneficially owned by such
person and owned of record by such record owner and the denominator of which is

the total number of shares of Common Stock beneficially owned by such person owning shares in excess of the Limit.

2. The following definitions shall apply to this Section C of this Article FOURTH:

(a) "Affiliate" shall have the meaning ascribed to it in Rule 12b-2 of the General Rules and Regulations under the Securities Act of 1934, as in effect on the date of filing of this Certificate of
Incorporation.

(b) "Beneficial ownership" shall be determined pursuant to Rule 13d-3 of the General Rules and Regulations under the Securities Exchange Act of 1934 (or any successor rule or statutory provision),
or, if said Rule 13d-3 shall be rescinded and there shall be no successor rule or statutory provision thereto, pursuant to said Rule 13d-3 as in effect on the date of filing of this Certificate of
Incorporation; provided, however, that a person shall, in any event, also be deemed the "beneficial owner" of any Common Stock:

(1) which such person or any of its affiliates beneficially owns, directly or indirectly; or

(2) which such person or any of its affiliates has (i) the right to acquire (whether such right is exercisable immediately or only after the passage of time), pursuant to any agreement, arrangement
or understanding (but shall not be deemed to be the beneficial owner of any voting shares solely by reason of an agreement, contract, or other arrangement with this
Corporation to effect any transaction which is described in any one or more clauses of Section A of Article EIGHTH) or upon the exercise of conversion rights, exchange rights, warrants, or options
or otherwise, or (ii) sole or shared voting or investment power with respect thereto pursuant to any agreement, arrangement, understanding, relationship or otherwise (but shall not be deemed to
be the beneficial owner of any voting shares solely by reason of a revocable proxy granted for a particular meeting of stockholders, pursuant to a public solicitation of proxies for such meeting,
with respect to shares of which neither such person nor any such affiliate is otherwise deemed the beneficial owner); or

(3) which are beneficially owned, directly or indirectly, by any other person with which such first mentioned person or any of its affiliates acts as a partnership, limited partnership, syndicate or
other group pursuant to any agreement, arrangement or understanding for the purpose of acquiring, holding, voting or disposing of any shares of capital stock of this Corporation; and provided
further, however, that (1) no Director or Officer of this Corporation (or any affiliate of any such Director or Officer) shall, solely by reason of any or all of such Directors or Officers acting in their
capacities as such, be deemed, for any purposes hereof, to beneficially own any Common Stock beneficially owned by another such Director or Officer (or any affiliate thereof), and (2) neither any
employee stock ownership plan or similar plan of this Corporation or any subsidiary of this Corporation, nor any trustee with respect thereto or any affiliate of such trustee (solely by reason of
such capacity of such trustee),shall be deemed, for any purposes hereof, to beneficially own any Common Stock held under any such plan. For purposes of computing the percentage beneficial
ownership of Common Stock of a person the outstanding Common Stock shall include shares deemed owned by such person through application of this subsection but shall not include any other
Common Stock which may be issuable by this Corporation pursuant to any agreement, or upon exercise of conversion rights, warrants or options, or otherwise. For all other purposes, the
outstanding Common Stock shall include only Common Stock then outstanding and shall not include any Common Stock which may be

issuable by this Corporation pursuant to any agreement, or upon the exercise of conversion rights,warrants or options, or otherwise.

(c) A "person" shall mean any individual, firm, corporation, or other entity.

3. The Board of Directors shall have the power to construe and apply the provisions of this section and to make all determinations necessary or desirable to implement such provisions, including but
not limited to matterswith respect to (i) the number of shares of Common Stock beneficially owned by any person, (ii) whether a person is an affiliate of another, (iii) whether a person has an
agreement, arrangement, or understanding with another as to the matters referred to in the definition of beneficial ownership, (iv) the application of any other definition or operative provision of
this section to the given facts, or (v) any other matter relating to the applicability or effect of this section.

4. The Board of Directors shall have the right to demand that any person who is reasonably believed to beneficially own Common Stock in excess of the Limit (or holds of record Common Stock
beneficially owned by any person in excess of the Limit) supply the Corporation with complete information as to (i) the record owner(s) of all shares beneficially owned by such person who is
reasonably believed to own shares in excess of the Limit, and (ii) any other factual matter relating to the applicability or effect of this section as may reasonably be requested of such person.

5. Except as otherwise provided by law or expressly provided in this section, the presence, in person or by proxy, of holders of a majority of the shares of capital stock of the Corporation entitled to
vote at the meeting (after giving effect, if required, to the provisions of this section) shall constitute a quorum at all meetings of the stockholders (unless or except to the extent that the presence of a
larger number may be required by law), and every reference in this Certificate of Incorporation to a majority or other proportion of capital stock (or the holders thereof) for purposes of determining
any quorum requirement or any requirement for stockholder consent or approval shall be deemed to refer to such majority or other proportion of the votes (or the holders thereof) then entitled to
be cast in respect of such capital stock.

6. Any constructions, applications, or determinations made by the Board of Directors pursuant to this section in good faith and on the basis of such information and assistance as was then reasonably
available for such purpose shall be conclusive and binding upon the Corporation and its stockholders.

7. In the event any provision (or portion thereof) of this section shall be found to be invalid, prohibited or unenforceable for any reason, the remaining provisions (or portions thereof) of this section
shall remain in full force and effect, and shall be construed as if such invalid, prohibited or unenforceable provision had been stricken here from or otherwise rendered inapplicable, it being the intent
of this Corporation and its stockholders that such remaining provision (or portion thereof) of this section remain, to the fullest extent permitted by law, applicable and enforceable as to all
stockholders, including stockholders owning an amount of stock over the Limit, notwithstanding any such finding.

FIFTH: The following provisions are inserted for the management of the business and the conduct of the affairs of the Corporation, and for further definition, limitation and regulation of the powers
of the Corporation and of its Directors and stockholders:

A. The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors. In addition to the powers and authority expressly conferred upon them by
statute or by this Certificate of Incorporation or the Bylaws of the Corporation, the Directors are hereby empowered to exercise all such powers and do all such acts and things as may be exercised
or done by the Corporation.

B. The Directors of the Corporation need not be elected by written ballot unless the Bylaws so provide. Stockholders shall not be permitted to cumulate their votes for the election of Directors.

C. Any action required or permitted to be taken by the stockholders of the Corporation must be effected at a duly called annual or special meeting of stockholders of the Corporation and may

    not be effected by any consent in writing by such stockholders.

D. Special meetings of stockholders of the Corporation may be called only by the Board of Directors pursuant to a resolution adopted by a majority of the total number of authorized directorships
(whether or not there exist any vacancies in previously authorized directorships at the time any such resolution is presented to the Board for adoption) (the "Whole Board") or as otherwise
provided in the Bylaws.

SIXTH:

A. The number of Directors shall be fixed from time to time exclusively by the Board of Directors pursuant to a resolution adopted by a majority of the Whole Board. The Directors shall be divided
into three classes, as nearly equal in number as reasonably possible, with the term of office of the first class to expire at the first annual meeting of stockholders, the term of office of the second
class to expire at the annual meeting of stockholders one year thereafter and the term of office of the third class to expire at the annual meeting of stockholders two years thereafter. At each
annual meeting of stockholders following such initial classification and
election, Directors elected to succeed those Directors whose terms expire shall be elected for a term of office to expire at the third succeeding annual meeting of stockholders after their election.

B. Subject to the rights of the holders of any series of Preferred Stock then outstanding, newly created directorships resulting from any increase in the authorized number of Directors or any
vacancies in the Board of Directors resulting from death, resignation, retirement, disqualification, removal from office or other cause may be filled only by a majority vote of the Directors then in
office, though less than a quorum, and Directors so chosen shall hold office for a term expiring at the annual meeting of stockholders at which theterm of office of the class to which they have
been chosen expires. No decrease in the number of Directors constituting the Board of Directors shall shorten the term of any incumbent Director.

C. Advance notice of stockholder nominations for the election of Directors and of business to be brought by stockholders before any meeting ofthe stockholders of the Corporation shall be given in
the manner provided in the Bylaws of the Corporation.

D. Subject to the rights of the holders of any series of Preferred Stock then outstanding, any Director, or the entire Board of Directors, may be removed from office at any time, but only for cause
and only by the affirmative vote of the holders of at least 80 percent of the voting power

of all of the then-outstanding shares of capital stock of the Corporation entitled to vote generally in the election of Directors (after giving effect to the provisions of Article FOURTH of this
Certificate of Incorporation ("Article FOURTH")), voting together as a single class.

SEVENTH: The Board of Directors is expressly empowered to adopt, amend or repeal the Bylaws of the Corporation. Any adoption, amendment or repeal of the Bylaws of the Corporation by the Board of
Directors shall require the approval of two-thirds of the Whole Board. The stockholders shall also have
power to adopt, amend or repeal the Bylaws of the Corporation; provided, however, that, in addition to any vote of the holders of any class or series of stock of the Corporation required by law or by this
Certificate of Incorporation, the affirmative vote of the holders of at least 80 percent of the voting power of all of the then-outstanding shares of the capital stock of the Corporation entitled to vote
generally in the election of Directors (after giving effect to the provisions of Article FOURTH), voting together as a single class, shall be required to adopt, amend or repeal any provisions of the Bylaws
of the Corporation.

EIGHTH:

A. In addition to any affirmative vote required by law or this Certificate of Incorporation, and except as otherwise expressly provided in this section:

1. any merger or consolidation of the Corporation or any Subsidiary (as hereinafter defined) with (i) any Interested Stockholder (as hereinafter defined) or (ii) any other corporation (whether or
not itself an Interested Stockholder) which is, or after such merger or consolidation would be, an Affiliate (as hereinafter defined) of an Interested Stockholder; or

2. any sale, lease, exchange, mortgage, pledge, transfer or other disposition (in one transaction or a series of transactions) to or with any Interested Stockholder, or any Affiliate of any Interested
Stockholder, of any assets of the Corporation or any Subsidiary having an aggregate Fair Market Value (as hereinafter defined) equaling or exceeding 25% or more of the combined assets of the
Corporation and its Subsidiaries; or

3. the issuance or transfer by the Corporation or any Subsidiary (in one transaction or a series of transactions) of any securities of the Corporation or any Subsidiary to any Interested Stockholder
or any Affiliate of any Interested Stockholder in exchange for cash,securities or other property (or a combination thereof) having an aggregate Fair Market Value (as hereinafter defined) equaling
or exceeding 25% of the combined Fair Market Value of the then-outstanding common stock of the Corporation and its Subsidiaries, except pursuant to an employee benefit plan of the
Corporation or any Subsidiary thereof; or

4. the adoption of any plan or proposal for the liquidation or dissolution of the Corporation proposed by or on behalf of an Interested Stockholder or any Affiliate of an Interested Stockholder; or

5. any reclassification of securities (including any reverse stock split), or recapitalization of the Corporation, or any merger or consolidation of the Corporation with any of its Subsidiaries or any
other transaction (whether or not with or into or otherwise involving an Interested Stockholder) which has the effect, directly or indirectly, of increasing the proportional share of the outstanding
shares of any class of equity or convertible securities of the Corporation or any Subsidiary which is directly or indirectly owned by an Interested Stockholder or any Affiliate of

an Interested Stockholder; shall require the affirmative vote of the holders of at least 80% of the voting power of the then-outstanding shares of stock of the Corporation entitled to vote in the
election of Directors (the "Voting Stock") (after giving effect to the provision of Article FOURTH), voting together as a single class. Such affirmative vote shall be required notwithstanding the fact
that no vote may be required, or that a lesser percentage may be specified, by law or by any other provisions of this Certificate of Incorporation or any Preferred Stock Designation or in any
agreement with any national securities exchange or otherwise. The term "Business Combination" as used in this Article EIGHTH shall mean any transaction which is referred to in any one or more
of paragraphs 1 through 5 of Section A of this Article EIGHTH.

B. The provisions of Section A of this Article EIGHTH shall not be applicable to any particular Business Combination, and such Business Combination shall require only the affirmative vote of the
majority of the outstanding shares of capital stock entitled to vote, or such vote as is required by law or by this Certificate of Incorporation, if, in the case of any Business Combination that does not
involve any cash or other consideration being received by the stockholders of the Corporation solely in their capacity as stockholders of the Corporation, the condition specified in the following
paragraph 1 is met or, in the case of any other Business Combination, all of the conditions specified in either of the following paragraphs 1 or 2 are met:

1. The Business Combination shall have been approved by two-thirds of the Disinterested Directors (as hereinafter defined).

2. All of the following conditions shall have been met:

(a) The aggregate amount of the cash and the Fair Market Value as of the date of the consummation of the Business Combination of consideration other than cash to be received
per share by the holders of Common Stock in such Business Combination shall at least be equal to the higher of the following:

(1) (if applicable) the Highest Per Share Price (as hereinafter defined), including any brokerage commissions, transfer taxes and soliciting dealers' fees, paid by the Interested Stockholder or any
of its Affiliates for any shares of Common Stock acquired by it (i) within the two-year period immediately prior to the first public announcement of the proposal of the Business Combination (the
"Announcement Date"), or (ii) in the transaction in which it became an Interested Stockholder, whichever is higher.

(2) the Fair Market Value per share of Common Stock on the Announcement Date or on the date on which the Interested Stockholder became an Interested Stockholder (such latter date is
referred to in this Article EIGHTH as the "Determination Date"), whichever is higher.

(b) The aggregate amount of the cash and the Fair Market Value as of the date of the consummation of the Business Combination of consideration other than cash to be received
per share by holders of shares of any class of outstanding Voting Stock other than Common Stock shall be at least equal to the highest of the following (it being intended that the
requirements of this subparagraph (b) shall be required to be met with respect to every such class of outstanding Voting Stock, whether or not the Interested Stockholder has previously
acquired any shares of a particular class of Voting Stock):

(1) (if applicable) the Highest Per Share Price (as hereinafter defined), including any brokerage commissions, transfer taxes and soliciting dealers' fees, paid by the Interested Stockholder for any
shares of such class of Voting Stock acquired by it (i) within the two-year period immediately prior to the Announcement Date, or (ii) in the transaction in which it became an Interested
Stockholder, whichever is higher;

(2) (if applicable) the highest preferential amount per share to which the holders of shares of such class of Voting Stock are entitled in the event of any voluntary or involuntary liquidation,
dissolution or winding up of the Corporation; and

(3) the Fair Market Value per share of such class of Voting Stock on the Announcement Date or on the Determination Date, whichever is higher.

(c) The consideration to be received by holders of a particular class of outstanding Voting Stock (including Common Stock shall be in cash or in the same form as the Interested
Stockholder has paid for shares of such class of Voting Stock. If the Interested Stockholder has previously paid for shares of any class of Voting Stock with varying forms of consideration, the
form of consideration to be received per share by holders of shares of such class of Voting Stock shall be either cash or the form used to acquire the largest number of shares of such class of
Voting Stock previously acquired by the Interested Stockholder. The price determined in accordance with subparagraph B.2 of this Article EIGHTH shall be subject to appropriate adjustment in
the event of any stock dividend, stock split, combination of shares or similar event.

(d) After such Interested Stockholder has become an Interested Stockholder and prior to the consummation of such Business Combination: (1) except as approved by a majority of the
Disinterested Directors, there shall have been no failure to declare and pay at the regular date therefor any full quarterly dividends (whether or not cumulative) on any outstanding stock having
preference over the Common Stock as to dividends or liquidation; (2) there shall have been (i) no reduction in the annual rate of dividends paid on the Common Stock (except as necessary to
reflect any subdivision of the Common Stock), except as approved by a majority of the Disinterested Directors, and (ii) an increase in such annual rate of dividends as necessary to reflect any
reclassification (including any reverse stock split), recapitalization, reorganization or any similar transaction which has the effect of reducing the number of outstanding shares of the Common
Stock, unless the failure to so increase such annual rate is approved by a majority of the Disinterested Directors; and (3) neither such Interested
Stockholder or any of its Affiliates shall have become the beneficial owner of any additional shares of Voting Stock except as part of the transaction which results in such Interested Stockholder
becoming an Interested Stockholder.

(e) After such Interested Stockholder has become an Interested Stockholder, such Interested Stockholder shall not have received the benefit, directly or indirectly (except
proportionately as a stockholder), of any loans, advances guarantees, pledges or other financial assistance or any tax credits or other tax advantages provided by the Corporation,

whether in anticipation of or in connection with such Business Combination or otherwise.

(f) A proxy or information statement describing the proposed Business Combination and
complying with the requirements of the Securities Exchange Act of 1934 and the rules and
regulations thereunder (or any subsequent provisions replacing such Act, rules or

regulations) shall be mailed to stockholders of the Corporation at least 30 days prior to
the consummation of such Business Combination (whether or not such proxy or
information statement is required to be mailed pursuant to such Act or subsequent
provisions).

C. For the purposes of this Article EIGHTH:

1. A "Person" shall include an individual, a group acting in concert, a corporation, a partnership, an association, a joint venture, a pool, a joint stock company, a trust, an unincorporated
organization or similar company, a syndicate or any other group formed for the purpose of acquiring, holding or disposing of securities.

2. "Interested Stockholder" shall mean any person (other than the Corporation or any holding company or Subsidiary thereof) who or which:

(a) is the beneficial owner, directly or indirectly, of more than 10% of the voting power of the outstanding Voting Stock; or

(b) is an Affiliate of the Corporation and at any time within the two-year period immediately prior to the date in question was the beneficial owner, directly or indirectly, of 10% or more of the
voting power of the then-outstanding Voting Stock; or

(c) is an assignee of or has otherwise succeeded to any shares of Voting Stock which were at any time within the two-year period immediately prior to the date in question beneficially
owned by an Interested Stockholder, if such assignment or succession shall have occurred in the course of a transaction or series of transactions not involving a public offering within the

meaning of the Securities Act of 1933.

3. For purposes of this Article EIGHTH, "beneficial ownership" shall be determined in the manner provided in Section C of Article FOURTH hereof.

4. "Affiliate" and "Associate" shall have the respective meanings ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under the Securities Exchange Act of 1934, as in effect
on the date of filing of this Certificate of Incorporation.

5. "Subsidiary" means any corporation of which a majority of any class of equity security is owned, directly or indirectly, by the Corporation; provided, however, that for the purposes of the
definition of Interested Stockholder set forth in paragraph 2 of this section, the term "Subsidiary" shall mean only a corporation of which a majority of each class of equity security is owned,
directly or indirectly, by the Corporation.

6. "Disinterested Director" means any member of the Board of Directors who is unaffiliated with the Interested Stockholder and was a member of the Board of Directors prior to the time that
the Interested Stockholder became an Interested Stockholder, and any Director who is thereafter chosen to fill any vacancy of the Board of Directors or who is elected and who, in either event, is
unaffiliated with the Interested Stockholder and in connection with his or her initial assumption of office is recommended for appointment or election by a majority of Disinterested Directors
then on the Board of Directors.

7. "Fair Market Value" means: (a) in the case of stock, the highest closing sales price of the stock during the 30-day period immediately preceding the date in question of a share of such stock
on the National Association of Securities Dealers Automated Quotation System or any system then in use, or, if such stock is admitted to trading on a principal United States securities exchange
registered under the Securities Exchange Act of 1934, Fair Market Value shall be the highest sales price reported during the 30-day period preceding the date in question, or, if no such
quotations are available, the Fair Market Value on the date in question of a share of such stock as determined by the Board of Directors in good faith, in each case with respect to any class of
stock, appropriately adjusted for any dividend or distribution in shares of such stock or any stock split or reclassification of outstanding shares of such stock into a greater number of shares of
such stock or any combination or reclassification of outstanding shares of such stock into a smaller number of shares of such stock, and (b) in the case of property other than cash or stock,
the Fair Market Value of such property on the date in question as determined by the Board of Directors in good faith.

8. Reference to "Highest Per Share Price" shall in each case with respect to any class of stock reflect an appropriate adjustment for any dividend or distribution in shares of such stock or any
stock split or reclassification of outstanding shares of such stock into a greater number of shares of such stock or any combination or reclassification of outstanding shares of such stock into a
smaller number of shares of such stock.

9. In the event of any Business Combination in which the Corporation survives, the phrase "consideration other than cash to be received" as used in subparagraphs (a) and (b) of paragraph 2 of
Section B of this Article EIGHTH shall include the shares of Common Stock and/or the shares of any other class of outstanding Voting Stock retained by the holders of such shares.

D. A majority of the Directors of the Corporation shall have the power and duty to determine for the purposes of this Article EIGHTH, on the basis of information known to them after reasonable
inquiry (a) whether a person is an Interested Stockholder; (b) the number of shares of Voting Stock beneficially owned by any person; (c) whether a person is an Affiliate or Associate of another; and
(d) whether the assets which are the subject of any Business Combination have, or the consideration to be received for the issuance or transfer of securities by the Corporation or any Subsidiary in any
Business Combination has an aggregate Fair Market Value equaling or exceeding 25% of the
combined Fair Market Value of the common stock of the Corporation and its Subsidiaries. A majority of the Directors shall have the further power to interpret all of the terms and provisions of this
Article EIGHTH.

E. Nothing contained in this Article EIGHTH shall be construed to relieve any Interested Stockholder from any fiduciary obligation imposed by law.

F. Notwithstanding any other provisions of this Certificate of Incorporation or any provision of law which might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the
holders of any particular class or series of the Voting Stock required by law, this Certificate of
Incorporation or any Preferred Stock Designation, the affirmative vote of the holders of at least 80 percent of the voting power of all of the then-outstanding shares of the Voting Stock, voting together
as a single class, shall be required to alter, amend or repeal this Article EIGHTH.

NINTH: The Board of Directors of the Corporation, when evaluating any offer of another Person (as defined in Article EIGHTH hereof) to (A) make a tender or exchange offer for any equity security of
the Corporation, (B) merge or consolidate the Corporation with another corporation or entity or (C) purchase or otherwise acquire all or substantially all of the properties and assets of the Corporation,
may, in connection with the exercise of its judgment in determining what is in the best interest of the Corporation and its stockholders, give due consideration to all relevant factors, including, without
limitation, the social and economic effect of acceptance of such offer on: the Corporation's present and future customers and employees and those of its Subsidiaries (as defined in Article EIGHTH
hereof); the communities in which the Corporation and its Subsidiaries operate or are located; the ability of the Corporation to fulfill its corporate objectives as a savings or bank holding company; and
the ability of its subsidiary bank to fulfill its corporate objectives under applicable statutes and regulations.

TENTH:

A. Each person who was or is made a party or is threatened to be made a party to or is otherwise involved in any action, suit or proceeding, whether civil, criminal, administrative or investigative
(hereinafter a "proceeding"), by reason of the fact that he or she is or was a Director or an Officer of the Corporation or is or was serving at the request of the Corporation as a Director, Officer,
employee or agent of another corporation or of a partnership, joint venture, trust or other enterprise, including service with respect to an employee benefit plan (hereinafter an "indemnitee"), whether
the basis of such proceeding is alleged action in an official capacity as a Director, Officer, employee or agent or in any other capacity while serving as a Director, Officer, employee or agent, shall be
indemnified and held harmless by the Corporation to the fullest extent authorized by the Delaware General Corporation Law, as the same exists or may hereafter be amended (but, in the case of any
such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than such law permitted the Corporation to provide prior to such
amendment), against all expense, liability and loss (including attorneys' fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement) reasonably incurred or suffered by such
indemnitee in connection therewith; provided, however, that, except as provided in Section C hereof with respect to proceedings to enforce rights to indemnification, the Corporation shall indemnify
any such indemnitee in connection with a proceeding (or part thereof) initiated by such indemnitee only if such proceeding (or part thereof) was authorized by the Board of Directors of
the Corporation.

B. The right to indemnification conferred in Section A of this Article TENTH shall include the right to be paid by the Corporation the expenses incurred in defending any such proceeding in advance of its
final disposition (hereinafter an "advancement of expenses"); provided, however, that, if the Delaware General Corporation Law requires, an advancement of expenses incurred by an indemnitee in his
or her capacity as a Director of Officer (and not in any other capacity in which service was or is rendered by such indemnitee, including, without limitation, service to an employee benefit plan) shall be
made only upon delivery to the Corporation of an undertaking (hereinafter an "undertaking"), by or on behalf of such indemnitee, to repay all amounts so advanced if it shall ultimately be determined by
final judicial decision from which there is no further right to appeal (hereinafter a "final adjudication") that such indemnitee is not entitled to be indemnified for such expenses underthis Section or
otherwise. The rights to indemnification and to the advancement of expenses conferred in Sections A and B of this Article TENTH shall be contract rights and such rights shall continue as to an
indemnitee who has ceased to be a Director, Officer, employee or agent and shall inure to the benefit of the indemnitee's heirs, executors and administrators.

C. If a claim under Section A or B of this Article TENTH is not paid in full by the Corporation within sixty days after a written claim has been received by the Corporation, except in the case of a claim for an
advancement of expenses, in which case the applicable period shall be twenty days, the indemnitee may at any time thereafter bring suit against the Corporation to recover the unpaid amount of the
claim. If successful in whole or in part in any such suit, or in a suit brought by the Corporation to recover an advancement of expenses pursuant to the terms of an undertaking, the indemnitee shall be
entitled to be paid also the expense of prosecuting or defending such suit. In (i) any suit brought by the indemnitee to enforce a right to indemnification hereunder (but not in a suit brought by the
indemnitee to enforce a right to anadvancement of expenses) it shall be a defense that, and (ii) in any suit by the Corporation to recover an advancement of expenses pursuant to the terms of an
undertaking the Corporation shall be entitled to recover such expenses upon a final adjudication that, the indemnitee has not met any applicable standard for indemnification set forth in the Delaware
General Corporation Law. Neither the failure of the Corporation (including its Board of Directors, independent legal counsel, or its stockholders) to have made a determination prior to the
commencement of such suit that indemnification of the indemnitee is proper in the circumstances because the indemnitee has met the applicable standard of conduct set forth in the Delaware General
Corporation Law, nor an actual determination by the Corporation (including its Board of Directors, independent legal counsel, or its stockholders) that the indemnitee has not met such applicable
standard of conduct, shall create a presumption that the indemnitee has not met the applicable standard of conduct or, in the case of such a suit brought by the indemnitee, be a defense to such suit. In
any suit brought by the indemnitee to enforce a right to indemnification or to an advancement of expenses hereunder, or by the Corporation to recover an advancement of expenses pursuant to the
terms of an undertaking, the burden of proving that the indemnitee is not entitled to be indemnified, or to such advancement of expenses, under this Article TENTH or otherwise shall be on the
Corporation.

D. The rights to indemnification and to the advancement of expenses conferred in this Article TENTH shall not be exclusive of any other right which any person may have or hereafter acquire under any
statute, the Corporation's Certificate of Incorporation, Bylaws, agreement, vote of stockholders or
disinterested Directors or otherwise.
E. The Corporation may maintain insurance, at its expense, to protect itself and any Director, Officer, employee or agent of the Corporation or another corporation, partnership, joint venture, trust or
other enterprise against any expense, liability or loss, whether or not the Corporation would have the power to indemnify such person against such expense, liability or loss under the Delaware General
Corporation Law.

F. The Corporation may, to the extent authorized from time to time by the Board of Directors, grant rights to indemnification and to the advancement of expenses to any employee or agent of the
Corporation to the fullest extent of the provisions of this Article TENTH with respect to the indemnification and advancement of expenses of Directors and Officers of the Corporation.

ELEVENTH: A Director of this Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a Director, except for liability (i) for any
breach of the Director's duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the Delaware General Corporation Law, or (iv) for any transaction from which the Director derived an improper personal benefit. If the Delaware General Corporation Law is amended to

authorize corporate action further eliminating or limiting the personal liability of Directors, then the liability of a Director of the Corporation shall be eliminated or limited to the fullest extent permitted
by the Delaware General Corporation Law, as so amended. Any repeal or modification of the foregoing paragraph by the stockholders of the Corporation shall not adversely affect any right or protection
of a Director of the Corporation existing at the time of such repeal or modification.

TWELFTH: The Corporation reserves the right to amend or repeal any provision contained in this Certificate of Incorporation in the manner prescribed by the laws of the State of Delaware and all rights
conferred upon stockholders are granted subject to this reservation; provided, however, that, notwithstanding any other provision of this Certificate of Incorporation or any provision of law which might
otherwise permit a lesser vote or no vote, but in addition to any vote of the holders of any class or series of the stock of the Corporation required by law or by this Certificate of Incorporation, the
affirmative vote of the holders of at least 80 percent of the voting power of all of the then-outstanding shares of the capital stock of the Corporation entitled to vote generally in the election of Directors
(after giving effect to the provisions of Article FOURTH), voting together as a single class, shall be
required to amend or repeal this Article TWELFTH, Section C of Article FOURTH, Sections C or D of Article FIFTH, Article SIXTH, Article SEVENTH, Article EIGHTH or Article TENTH.

THIRTEENTH: The name and mailing address of the sole incorporator are as follows:

NAME     MAILING ADDRESS
--------     ------------------------
Robert B. Pomerenk, Esquire 5335 Wisconsin Avenue, N.W.
        Suite 400
        Washington, D.C. 20015

DESCRIPTION OF EQUITY SECURITIES REGISTERED

UNDER SECTION 12 OF THE EXCHANGE ACT

Brookline Bancorp, Inc. (the “Company”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: common stock, par value $1.00 per share (the “Common Stock”). The Company’s
Common Stock is traded on the Nasdaq Global Select Market

 under the symbol “BRKL.”

sm

The following is a description of the material terms and provisions of the Company’s Common Stock. It may not contain all information that is important to you. You can access complete information by referring to the Company’s
certificate of incorporation and bylaws and the Delaware General Corporation Law. The certificate of incorporation and bylaws are attached as exhibits to the Annual Report on Form 10-K to which this description is an exhibit.

General

Under the certificate of incorporation, the Company has authority, without further shareholder action, to issue up to 200,000,000 shares of Common Stock. The Company may amend its certificate of incorporation from time to time to
increase the number of authorized shares of Common Stock with shareholder approval.

The Company may issue Common Stock from time to time. The Company’s Board of Directors must approve the amount of capital stock the Company sells and the price for which it is sold. Holders of Common Stock do not have any
preferential rights or preemptive rights to buy or subscribe for capital stock or other securities that the Company may issue. The Company’s Common Stock does not have any redemption rights, sinking fund provisions or any conversion
rights.

Dividends

The Company may pay dividends on its Common Stock if, after giving effect to the distribution, it would be able to pay its indebtedness as the indebtedness comes due in the usual course of business and its total assets exceed the sum of
its liabilities and the amount needed, if the Company were to be dissolved at the time of the distribution, to satisfy the preferential rights upon dissolution of any holders of capital stock who have preference in the event of dissolution. The
holders of Common Stock are entitled to receive and share equally in dividends as may be declared by the Company’s Board of Directors out of funds legally available therefor. If the Company issues shares of preferred stock, the holders
thereof may have a priority over the holders of the Common Stock with respect to dividends.

Liquidation

In the event of any liquidation, dissolution or winding up of the Company, and subject to the preferential rights of any other class or series of stock, holders of shares of the Common Stock are entitled to receive all assets of the Company
available for distribution, after payment or provision for payment of all debts and liabilities of the Company, including deposit accounts and accrued interest thereon, and after distribution of the balance in the liquidation account to eligible
account holders.

Voting Rights

Subject to the provisions of the certificate of incorporation, each holder of Common Stock is entitled to one vote per share and has no right to cumulate votes in the election of directors. Holders of the Company’s Common Stock elect the
Company’s Board of Directors and act on all other matters as are required to be presented to them under Delaware law or as are otherwise presented to them by the Company’s Board of Directors.

Under the certificate of incorporation, any person who beneficially owns more than 10% of the then-outstanding shares of the Company’s Common Stock will not be entitled or permitted to vote any shares of Common Stock held in excess
of the 10% limit.

All matters to be voted on by stockholders, other than a contested election of directors, must be approved by a majority of the votes cast at a meeting of stockholders duly called and at which a quorum is present, subject to any voting rights
granted to holders of any then outstanding preferred stock. In contested elections of directors, which generally will include any situation in which the Company receives a notice that a stockholder has nominated a person for election to the
Company’s Board of Directors at a meeting of the stockholders of the Company that is not

ACTIVE/102295989.4

withdrawn on or before the tenth day before the Company first mails its notice for such meeting to its stockholders, a plurality voting standard will apply.

ACTIVE/102295989.4

RESTRICTED STOCK AWARD AGREEMENT
UNDER THE BROOKLINE BANCORP, INC.
2014 EQUITY INCENTIVE PLAN

Name of Grantee:    __________________

No. of Shares:    __________________

Grant Date:    __________________

Pursuant to the Brookline Bancorp, Inc. 2014 Equity Incentive Plan (the “Plan”) as amended through the date hereof, Brookline Bancorp, Inc. (the “Company”) hereby grants a Restricted

Stock Award (an “Award”) to the Grantee named above. Upon acceptance of this Award, the Grantee shall receive the number of shares of Common Stock, par value $0.01 per share (the
“Stock”) of the Company specified above, subject to the restrictions and conditions set forth herein and in the Plan. The Company acknowledges the receipt from the Grantee of consideration
with respect to the par value of the Stock in the form of cash, past or future services rendered to the Company by the Grantee or such other form of consideration as is acceptable to the
Administrator.

1.

Award. The shares of Restricted Stock awarded hereunder shall be issued and held by the Company’s transfer agent in book entry form, and the Grantee’s name shall be entered

as the stockholder of record on the books of the Company. Thereupon, the Grantee shall have all the rights of a stockholder with respect to such shares, including voting and dividend rights,
subject, however, to the restrictions and conditions specified in Paragraph 2 below. The Grantee shall (i) sign and deliver to the Company a copy of this Award Agreement and (ii) deliver to the
Company a stock power endorsed in blank.

2.

Restrictions and Conditions.

(a)

Any book entries for the shares of Restricted Stock granted herein shall bear an appropriate legend, as determined by the Administrator in its sole discretion, to the effect

that such shares are subject to restrictions as set forth herein and in the Plan.

(b)

Shares of Restricted Stock granted herein may not be sold, assigned, transferred, pledged or otherwise encumbered or disposed of by the Grantee prior to vesting.

(c)

Except as provided in Section 20 of the Plan after a Change in Control (as defined in the Plan), if the Grantee’s employment with the Company and its Subsidiaries is
voluntarily or involuntarily terminated for any reason prior to the vesting of shares of Restricted Stock granted herein, all shares of Restricted Stock shall immediately and automatically be
forfeited and returned to the Company.

ACTIVE/102458835.2

1

3.

Vesting of Restricted Stock.

        [The restrictions and conditions in Paragraph 2 of this Agreement shall lapse on the Vesting Date specified in the following schedule so long as the Grantee remains a [director][employee]
of the Company or a Subsidiary on such Date. If a series of Vesting Dates is specified, then the restrictions and conditions in Paragraph 2 shall lapse only with respect to the number of shares of
Restricted Stock specified as vested on such date.

of Shares Vested

Incremental Number

_________

Vesting Date
___________]

1

    [The shares of Restricted Stock awarded hereunder shall vest on the third anniversary of the Grant Date, based on the Company’s achievement of identified performance-based

2
measures. [Measures to be described.]]

        Subsequent to such Vesting Date or Dates, the shares of Stock on which all restrictions and conditions have lapsed shall no longer be deemed Restricted Stock. The Administrator may at
any time accelerate the vesting schedule specified in this Paragraph 3.

4.

Dividends.

        Any dividends or distributions declared with respect to the Stock shall [be held by the Company until the Stock subject to the Award has vested. Upon the vesting of the Stock, the
dividends held by the Stock shall be distributed to the Grantee by the Company. In the event that the Grantee forfeits the Stock, the dividends declared on such shares shall also be forfeited by
4
the Grantee] [shall accrue and shall not be paid to the Grantee until and to the extent the performance goals are met with respect to the Award] .

3

5.

Incorporation of Plan. Notwithstanding anything herein to the contrary, this Award shall be subject to and governed by all the terms and conditions of the Plan, including the

powers of the Administrator set forth in Section 2(b) of the Plan. Capitalized terms in this Agreement shall have the meaning specified in the Plan, unless a different meaning is specified herein.

1

2

3

4

 For use in restricted stock awards to non-employee directors and time-based restricted stock awards to employees.
 For use in performance-based restricted stock awards to employees.
 For use in restricted stock awards to non-employee directors and time-based restricted stock awards to employees.
 For use in performance-based restricted stock awards to employees.

ACTIVE/102458835.2

2

6.

Transferability. This Agreement is personal to the Grantee, is non-assignable and is not transferable in any manner, by operation of law or otherwise, other than by will or the laws

of descent and distribution.

7.

Tax Withholding. The Grantee shall, not later than the date as of which the receipt of this Award becomes a taxable event for Federal income tax purposes, pay to the Company or
make arrangements satisfactory to the Administrator for payment of any Federal, state, and local taxes required by law to be withheld on account of such taxable event. Except in the case where
an election is made pursuant to Paragraph 8 below, the Company shall have the authority to cause the required minimum tax withholding obligation to be satisfied, in whole or in part, by
withholding from shares of Stock to be issued or released by the transfer agent a number of shares of Stock with an aggregate Fair Market Value that would satisfy the minimum withholding
amount due.

8.

Election Under Section 83(b). The Grantee and the Company hereby agree that the Grantee may, within 30 days following the Grant Date of this Award, file with the Internal
Revenue Service and the Company an election under Section 83(b) of the Internal Revenue Code. In the event the Grantee makes such an election, he or she agrees to provide a copy of the
election to the Company. The Grantee acknowledges that he or she is responsible for obtaining the advice of his or her tax advisors with regard to the Section 83(b) election and that he or she is
relying solely on such advisors and not on any statements or representations of the Company or any of its agents with regard to such election.

9.

No Obligation to Continue Employment. Neither the Company nor any Subsidiary is obligated by or as a result of the Plan or this Agreement to continue the Grantee in

employment and neither the Plan nor this Agreement shall interfere in any way with the right of the Company or any Subsidiary to terminate the employment of the Grantee at any time.

10.

Integration. This Agreement constitutes the entire agreement between the parties with respect to this Award and supersedes all prior agreements and discussions between the

parties concerning such subject matter.

11.

Data Privacy Consent. In order to administer the Plan and this Agreement and to implement or structure future equity grants, the Company, its subsidiaries and affiliates and

certain agents thereof (together, the “Relevant Companies”) may process any and all personal or professional data, including but not limited to Social Security or other identification number,
home address and telephone number, date of birth and other information that is necessary or desirable for the administration of the Plan and/or this Agreement (the “Relevant Information”). By
entering into this Agreement, the Grantee (i) authorizes the Company to collect, process, register and transfer to the Relevant Companies all Relevant Information; (ii) waives any privacy rights
the Grantee may have with respect to the Relevant Information; (iii) authorizes the Relevant Companies to store and transmit such information in electronic form; and (iv) authorizes the transfer
of the Relevant Information to any jurisdiction in which the Relevant Companies consider appropriate. The Grantee shall have access to, and the right to change, the Relevant Information.
Relevant Information will only be used in accordance with applicable law.

ACTIVE/102458835.2

3

12.

Notices. Notices hereunder shall be mailed or delivered to the Company at its principal place of business and shall be mailed or delivered to the Grantee at the address on file with

the Company or, in either case, at such other address as one party may subsequently furnish to the other party in writing.

BROOKLINE BANCORP, INC.

By:        
    Name:
    Title:

The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned. Electronic acceptance of this Agreement pursuant to the Company’s
instructions to the Grantee (including through an online acceptance process) is acceptable.

Dated:                

Grantee’s Signature

Grantee’s name and address:

ACTIVE/102458835.2

4

    
    
    
The Board of Directors and Stockholders
Brookline Bancorp, Inc.:

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (No. 333‑240013) on Form S-3 and (No. 333-197317 and No. 333-175255) on Form S-8 of our reports dated February 26, 2021, with respect to the consolidated
balance sheets of Brookline Bancorp, Inc. and subsidiaries as of December 31, 2020 and 2019, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in
the three-year period ended December 31, 2020, and the related notes (collectively, the “consolidated financial statements”), and the effectiveness of internal control over financial reporting as of December 31, 2020, which reports appear
in the December 31, 2020 annual report on Form 10‑K of Brookline Bancorp, Inc.

Our report refers to the Company’s change in its method of accounting for the recognition and measurement of credit losses as of January 1, 2020 due to the adoption of ASU No. 2016-13, Financial Instruments— Credit Losses (ASC
Topic 326) (commonly known as CECL).

                    /s/ KPMG LLP

Boston, Massachusetts
February 26, 2021

     
 
Certification of Chief Executive Officer 

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.1

I, Paul A. Perrault, President and Chief Executive Officer, certify that:

1.    I have reviewed this Annual Report on Form 10-K of Brookline Bancorp, Inc. (the "Registrant"); 

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with

respect to the period covered by this report; 

3.    Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods

presented in this report; 

4.    The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in

Exchange Act Rules 13a-15(f) and 15(d)-15(f)) for the Registrant and have: 

a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is

made known to us by others within those entities, particularly during the period in which this report is being prepared; 

b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the

preparation of financial statements for external purposes in accordance with generally accepted accounting principles; 

c)    Evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report

based on such evaluation; and 

d)    Disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's fourth fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Registrant's

internal control over financial reporting; and 

5.    The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of Registrant's board of directors (or persons performing the

equivalent functions): 

a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial

information; and 

b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.

Date: February 26, 2021

/s/ PAUL A. PERRAULT
Paul A. Perrault
President and Chief Executive Officer
(Principal Executive Officer)

Exhibit 31.2 

I, Carl M. Carlson, Chief Financial Officer, certify that:

1.    I have reviewed this Annual Report on Form 10-K of Brookline Bancorp, Inc. (the "Registrant"); 

Certification of Chief Financial Officer 

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002  

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with

respect to the period covered by this report; 

3.    Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods

presented in this report; 

4.    The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in

Exchange Act Rules 13a-15(f) and 15(d)-15(f)) for the Registrant and have: 

a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is

made known to us by others within those entities, particularly during the period in which this report is being prepared; 

b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the

preparation of financial statements for external purposes in accordance with generally accepted accounting principles; 

c)    Evaluated the effectiveness of the Registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report

based on such evaluation; and 

d)    Disclosed in this report any change in the Registrant's internal control over financial reporting that occurred during the Registrant's fourth fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Registrant's

internal control over financial reporting; and 

5.    The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of Registrant's board of directors (or persons performing the

equivalent functions): 

a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial

information; and 

b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.

Date: February 26, 2021

/s/ CARL M. CARLSON
Carl M. Carlson
Chief Financial Officer
(Principal Financial Officer)

STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT
OF 2002, 18 U.S.C. SECTION 1350 

The undersigned, Paul A. Perrault, is the President and Chief Executive Officer of Brookline Bancorp, Inc. (the "Company").

This statement is being furnished in connection with the filing by the Company of the Company's Annual Report on Form 10-K for the year ended December 31, 2020 (the "Report").

By execution of this statement, I certify that:

A)    the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and 

B)    the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods covered by the Report.

This statement is authorized to be attached as an exhibit to the Report so that this statement will accompany the Report at such time as the Report is filed with the Securities and Exchange Commission pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, 18 U.S.C. Section 1350. It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934, as amended.

Date: February 26, 2021

Exhibit 32.1 

/s/ PAUL A. PERRAULT
Paul A. Perrault
President and Chief Executive Officer
(Principal Executive Officer)

STATEMENT FURNISHED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT
OF 2002, 18 U.S.C. SECTION 1350 

The undersigned, Carl M. Carlson, is the Chief Financial Officer of Brookline Bancorp, Inc. (the "Company").

This statement is being furnished in connection with the filing by the Company of the Company's Annual Report on Form 10-K for the year ended December 31, 2020 (the "Report").

By execution of this statement, I certify that:

A)    the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)); and 

B)    the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods covered by the Report.

This statement is authorized to be attached as an exhibit to the Report so that this statement will accompany the Report at such time as the Report is filed with the Securities and Exchange Commission pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, 18 U.S.C. Section 1350. It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934, as amended.

Date: February 26, 2021

Exhibit 32.2 

/s/ CARL M. CARLSON
Carl M. Carlson
Chief Financial Officer
(Principal Financial Officer)