Exhibit 99.1

NEWS RELEASE

FOR IMMEDIATE RELEASE

Contact:	William P. Hornby, CPA
	whornby@centurybank.com
Phone:	781-393-4630
Fax:	781-393-4071

CENTURY BANCORP, INC. ANNOUNCES RECORD EARNINGS FOR 2020, UP 6.3%; RECORD ASSETS, LOANS, AND DEPOSITS; INCREASE IN QUARTERLY DIVIDEND DECLARED

Medford, MA, January 19, 2021— Century Bancorp, Inc. (NASDAQ:CNBKA) (www.centurybank.com) (“the Company”) today announced net income of $42,209,000 for the year ended December 31, 2020, or $7.58 per Class A share diluted, an increase of 6.3% compared to net income of $39,699,000, or $7.13 per Class A share diluted, for the same period a year ago. Total assets increased 15.8% from $5.49 billion at December 31, 2019 to $6.36 billion at December 31, 2020. For the quarter ended December 31, 2020, net income totaled $11,600,000 or $2.08 per Class A share diluted, an increase of 8.1% compared to net income of $10,732,000, or $1.93 per Class A share diluted, for the same period a year ago.

The Company’s Board of Directors voted to increase its regular quarterly dividend from 16.00 cents ($0.16) per share to 18.00 cents ($0.18) per share on the Company’s Class A common stock, and from 8.00 cents ($0.08) per share to 9.00 cents ($0.09) per share on the Company’s Class B common stock. The dividends were declared payable February 16, 2021 to stockholders of record on February 1, 2021.

Net interest income totaled $106.8 million for the year ended December 31, 2020 compared to $95.8 million for the same period in 2019. The 11.5% increase in net interest income for the period is primarily due to a decrease in interest expense as a result of falling interest rates. The net interest margin decreased from 2.10% on a fully tax-equivalent basis for 2019 to 2.00% for 2020. This was primarily the result of increased margin pressure during the recent decrease in interest rates across the yield curve. The average balances of earning assets increased for 2020 compared to the same period last year, by $719.9 million or 14.4%, combined with an average yield decrease of 0.63%, resulting in a decrease in interest income of $10.1 million. The average balance of interest-bearing liabilities increased for 2020 compared to the same period last year, by $568.3 million or 14.0%, combined with an average interest-bearing liabilities interest cost decrease of 0.65%, resulting in a decrease in interest expense of $21.1 million.

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The provision for loan losses increased by $4,575,000 from $1,250,000 for the year ended December 31, 2019 to $5,825,000 for 2020, primarily as a result of the economic uncertainties associated with the novel coronavirus disease (COVID–19) pandemic and increased loan balances.

The Company’s effective tax rate increased from 2.7% for the year ended December 31, 2019 to 9.5% for the same period in 2020. This was primarily as a result of an increase in taxable income relative to total income and a reduction in tax accruals, during 2019, related to sequestration of the refundable portion of our alternative minimum tax (AMT) credit carryforward, offset by an increase in life insurance proceeds received. On January 14, 2019, the IRS updated its announcement “Effect of Sequestration on the Alternative Minimum Tax Credit for Corporations” to clarify that refundable AMT credits under Section 53(e) of the Internal Revenue Code are not subject to sequestration for taxable years beginning after December 31, 2017. On March 27, 2020, the Coronavirus, Aid, Relief and Economic Security (CARES) Act was signed into law. As a result of the CARES Act, the full balance of the AMT credit was refunded in 2020.

At December 31, 2020, total equity was $370.4 million compared to $332.6 million at December 31, 2019. The Company’s equity increased primarily as a result of earnings, offset somewhat by dividends paid and an increase in total accumulated other comprehensive loss.

The Company’s leverage ratio stood at 6.64% at December 31, 2020, compared to 7.25% at December 31, 2019. The decrease in the leverage ratio was due to an increase in quarterly average assets, offset somewhat by an increase in stockholders’ equity. Book value as of December 31, 2020 was $66.53 per share compared to $59.73 at December 31, 2019.

The Company’s allowance for loan losses was $35.5 million or 1.18% of loans outstanding at December 31, 2020 compared to $29.6 million or 1.22% of loans outstanding at December 31, 2019. The ratio of the allowance for loan losses to loans outstanding has decreased from December 31, 2019, primarily from approximately $196 million of qualifying Payroll Protection Program (PPP) loans that are guaranteed by the U.S. Small Business Administration (SBA), which require no allowance for loan losses. Nonperforming assets totaled $4.0 million at December 31, 2020, compared to $2.0 million at December 31, 2019.

As of December 31, 2020, the Company has COVID-19 modifications of 20 loans aggregating $25,022,000, primarily consisting of short-term payment deferrals. Of these modifications, $25,022,000, or 100%, were performing in accordance with their modified terms.

The CARES Act also allows companies to delay Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2016-13, Measurement of Credit Losses on Financial Instruments (CECL), including the current expected credit losses methodology for estimating allowances for credit losses. The Company elected to delay FASB ASU 2016-13. This ASU was delayed until the earlier of the date on which the national emergency concerning the COVID–19 outbreak declared by the President on March 15, 2020 terminates or December 31, 2020, with an effective retrospective implementation date of January 1, 2020. On December 27, 2020, the Coronavirus Response and Relief Supplemental Appropriations Act of 2021 was signed into law. The law changed the delayed implementation date to the earlier of the first day of the Company’s fiscal year that begins after the date on which the national emergency terminates or January 1, 2022.

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The Company, through its subsidiary bank, Century Bank and Trust Company, a state chartered full service commercial bank, operating twenty-seven full-service branches in the Greater Boston area, offers a full range of Business, Personal and Institutional Services.

Century Bank and Trust Company is a member of the FDIC and is an Equal Housing Lender.

This press release contains certain “forward-looking statements” with respect to the financial condition, results of operations and business of the Company. Actual results may differ from those contemplated by these statements. The Company wishes to caution readers not to place undue reliance on any forward-looking statements. The Company disclaims any intent or obligation to update publicly any such forward-looking statements, whether in response to new information, future events or otherwise.

Century Bancorp, Inc. and Subsidiaries

Consolidated Comparative Statements of Condition (unaudited)

(in thousands)

	December 31, 2020		December 31, 2019
Assets
Cash and Due From Banks	$	136,735	$	44,420
Federal Funds Sold and Interest-bearing Deposits In Other Banks		237,265		214,273
Securities Available-for-Sale (AFS)		284,116		262,190
Securities Held-to-Maturity		2,509,088		2,351,120
Federal Home Loan Bank of Boston stock, at cost		13,361		19,471
Loans:
Commercial & Industrial		1,314,245		812,417
Municipal		137,607		120,455
Construction & Land Development		10,909		8,992
Commercial Real Estate		789,836		786,102
Residential Real Estate		448,436		371,897
Consumer and Other		20,439		21,893
Home Equity		274,357		304,363
Total Loans		2,995,829		2,426,119
Less: Allowance for Loan Losses		35,486		29,585
Net Loans		2,960,343		2,396,534
Bank Premises and Equipment, net		39,062		33,952
Accrued Interest Receivable		13,283		13,110
Goodwill		2,714		2,714
Other Assets		162,867		154,640
Total Assets	$	6,358,834	$	5,492,424
Liabilities
Demand Deposits	$	1,103,878	$	712,842
Interest Bearing Deposits:
Savings and NOW Deposits		1,728,092		1,678,250
Money Market Accounts		2,074,108		1,453,572
Time Deposits		546,143		555,447
Total Interest Bearing Deposits		4,348,343		3,687,269
Total Deposits		5,452,221		4,400,111
Borrowed Funds:
Securities Sold Under Agreements to Repurchase		232,090		266,045
Other Borrowed Funds		177,009		370,955
Total Borrowed Funds		409,099		637,000
Other Liabilities		91,022		86,649
Subordinated Debentures		36,083		36,083
Total Liabilities		5,988,425		5,159,843
Total Stockholders’ Equity		370,409		332,581
Total Liabilities & Stockholders’ Equity	$	6,358,834	$	5,492,424

Century Bancorp, Inc. and Subsidiaries

Consolidated Comparative Statements of Income (unaudited)

For the quarter and year ended December 31, 2020 and 2019

(in thousands)

	Quarter ended December 31,				Year ended December 31,
	2020		2019		2020		2019
Interest Income:
Loans	$	22,405	$	22,781	$	85,883	$	87,887
Securities Held-to-Maturity		13,371		15,030		58,072		58,036
Securities Available-for-Sale		745		1,860		4,238		9,165
Federal Funds Sold and Interest-bearing Deposits In Other Banks		96		847		843		4,051
Total Interest Income		36,617		40,518		149,036		159,139
Interest Expense:
Savings and NOW Deposits		1,311		4,395		8,880		21,183
Money Market Accounts		2,922		5,365		15,012		21,170
Time Deposits		2,432		3,080		11,573		11,804
Securities Sold Under Agreements to Repurchase		200		775		1,376		2,347
Other Borrowed Funds and Subordinated Debentures		1,273		1,572		5,366		6,846
Total Interest Expense		8,138		15,187		42,207		63,350
Net Interest Income		28,479		25,331		106,829		95,789
Provision For Loan Losses		2,150		550		5,825		1,250
Net Interest Income After
Provision for Loan Losses		26,329		24,781		101,004		94,539
Other Operating Income:
Service Charges on Deposit Accounts		2,260		2,419		8,818		9,220
Lockbox Fees		895		955		3,745		3,973
Net Gain on Sales of Loans		—		258		—		412
Other Income		3,425		1,057		6,537		4,794
Total Other Operating Income		6,580		4,689		19,100		18,399
Operating Expenses:
Salaries and Employee Benefits		12,283		11,393		45,303		44,014
Occupancy		1,592		1,560		6,040		6,246
Equipment		887		798		3,495		3,238
Other		5,344		4,461		18,650		18,631
Total Operating Expenses		20,106		18,212		73,488		72,129
Income Before Income Taxes		12,803		11,258		46,616		40,809
Income Tax Expense		1,203		526		4,407		1,110
Net Income	$	11,600	$	10,732	$	42,209	$	39,699

Century Bancorp, Inc. and Subsidiaries

Consolidated Year-to-Date Average Comparative Statements of Condition (unaudited)

(in thousands)

	December 31, 2020			December 31, 2019
Assets
Cash and Due From Banks	$	91,121		$	75,025
Federal Funds Sold and Interest-Bearing Deposits in Other Banks		274,901			189,710
Securities Available-For-Sale (AFS)		295,474			313,604
Securities Held-to-Maturity (HTM)		2,372,491			2,152,580
Total Loans		2,774,069			2,341,190
Less: Allowance for Loan Losses		31,951			29,004
Net Loans		2,742,118			2,312,186
Unrealized (Loss)Gain on Securities AFS and HTM Transfers		(2,528	)		(3,198	)
Bank Premises and Equipment		36,735			27,867
Accrued Interest Receivable		12,863			13,752
Goodwill		2,714			2,714
Other Assets		166,097			134,704
Total Assets	$	5,991,986		$	5,218,944
Liabilities
Demand Deposits	$	921,718		$	760,420
Interest Bearing Deposits:
Savings and NOW Deposits		1,900,406			1,810,481
Money Market Accounts		1,708,674			1,273,389
Time Deposits		595,864			519,761
Total Interest Bearing Deposits		4,204,944			3,603,631
Total Deposits		5,126,662			4,364,051
Borrowed Funds:
Securities Sold Under Agreements to Repurchase		221,609			224,361
Other Borrowed Funds		165,573			195,843
Total Borrowed Funds		387,182			420,204
Other Liabilities		89,147			79,437
Subordinated Debentures		36,083			36,083
Total Liabilities		5,639,074			4,899,775
Total Stockholders’ Equity		352,912			319,169
Total Liabilities & Stockholders’ Equity	$	5,991,986		$	5,218,944
Total Average Earning Assets - QTD	$	6,150,592		$	5,100,333
Total Average Earning Assets - YTD	$	5,716,935		$	4,997,084

Century Bancorp, Inc. and Subsidiaries

Consolidated Selected Key Financial Information (unaudited)

(in thousands, except share data)

	December 31, 2020			December 31, 2019
Performance Measures:
Earnings per average Class A share, diluted, quarter	$	2.08		$	1.93
Earnings per average Class A share, diluted, year	$	7.58		$	7.13
Return on average assets, year		0.70	%		0.76	%
Return on average stockholders’ equity, year		11.96	%		12.44	%
Net interest margin (taxable equivalent), quarter		1.95	%		2.14	%
Net interest margin (taxable equivalent), year		2.00	%		2.10	%
Efficiency ratio, Non-GAAP (1)		55.2	%		58.4	%
Book value per share	$	66.53		$	59.73
Tangible book value per share - Non-GAAP (1)	$	66.04		$	59.24
Capital / assets		5.83	%		6.06	%
Tangible capital / tangible assets - Non-GAAP (1)		5.78	%		6.01	%
Common Share Data:
Average Class A shares outstanding, diluted, quarter and year		5,567,909			5,567,909
Shares outstanding Class A		3,655,469			3,650,949
Shares outstanding Class B		1,912,440			1,916,960
Total shares outstanding at period end		5,567,909			5,567,909
Asset Quality and Other Data:
Allowance for loan losses / loans		1.18	%		1.22	%
Nonaccrual loans	$	3,996		$	2,014
Nonperforming assets	$	3,996		$	2,014
Loans 90 days past due and still accruing	$	90		$	—
Accruing troubled debt restructures	$	2,202		$	2,361
Net charge-offs (recoveries), year	$	(76	)	$	208
Leverage ratio		6.64	%		7.25	%
Common equity tier 1 risk weighted capital ratio		11.39	%		11.80	%
Tier 1 risk weighted capital ratio		12.40	%		12.98	%
Total risk weighted capital ratio		13.43	%		13.97	%
Total risk weighted assets	$	3,458,416		$	2,976,650
(1)   Non-GAAP Financial Measures are reconciled in the following tables:
Calculation of Efficiency ratio:
Total operating expenses	$	73,488		$	72,129
Less: other real estate owned expenses		—			134
Total adjusted operating expenses(numerator)	$	73,488		$	71,995
Net interest income	$	106,829		$	95,789
Total other operating income		19,100			18,399
Tax equivalent adjustment		7,280			9,068
Total income(denominator)	$	133,209		$	123,256
Efficiency ratio - Non-GAAP		55.2	%		58.4	%
Calculation of tangible book value per share:
Total stockholders’ equity	$	370,409		$	332,581
Less: goodwill		2,714			2,714
Tangible stockholders’ equity(numerator)	$	367,695		$	329,867
Total shares outstanding at period end(denominator)		5,567,909			5,567,909
Tangible book value per share - Non-GAAP	$	66.04		$	59.24
Book value per share - GAAP	$	66.53		$	59.73
Calculation of tangible capital / tangible assets:
Total stockholders’ equity	$	370,409		$	332,581
Less: goodwill		2,714			2,714
Tangible stockholders’ equity(numerator)	$	367,695		$	329,867
Total assets	$	6,358,834		$	5,492,424
Less: goodwill		2,714			2,714
Tangible assets(denominator)	$	6,356,120		$	5,489,710
Tangible capital / tangible assets - Non-GAAP		5.78	%		6.01	%
Capital / assets - GAAP		5.83	%		6.06	%