Sec Form 4 Filing - Carroll John A @ Meridian Bancorp, Inc. - 2021-11-12

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Carroll John A 2. Issuer Name and Ticker or Trading Symbol Meridian Bancorp, Inc. [ EBSB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) 67 PROSPECT STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/12/2021 (Street) PEABODY, MA01960 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/12/2021 D 31,172 D 0( 1 )( 2 ) D Common Stock 11/12/2021 D 8,409 D 0( 6 ) I By ESOP Common Stock 11/12/2021 D 4,011 D 0( 6 ) I By 401(k) Common Stock 11/12/2021 D 14,896 D 0 I By IRA

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Options $ 17.65 11/12/2021 D 15,032 07/31/2018 07/31/2027 Common Stock 15,032( 3 ) ( 5 ) 0 D Stock Options $ 14.2 11/12/2021 D 30,062 11/02/2016 11/02/2025 Common Stock 30,062 ( 5 ) 0 D Stock Options $ 13.06 11/12/2021 D 3,000 03/26/2016 03/26/2025 Common Stock 3,000 ( 5 ) 0 D Stock Options $ 7.4661 11/12/2021 D 1,224 04/23/2014 04/23/2023 Common Stock 1,224 ( 5 ) 0 D Stock Options $ 5.3831 11/12/2021 D 6,121 05/09/2013 05/09/2022 Common Stock 6,121 ( 5 ) 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Carroll John A 67 PROSPECT STREET PEABODY, MA01960 Chief Operating Officer Signatures /s/ Ned A. Quint, pursuant to power of attorney 11/15/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes shares of restricted stock which vest at a rate of 20% per year commencing on May 6, 2022. ( 2 )Includes shares of restricted stock which vest at a rate of 20% per year commencing on July 31, 2018. ( 3 )Stock options vest at a rate of 20% per year commencing on July 31, 2018. ( 4 )Each share of Issuer common stock was converted into and became exchangeable for the right to receive 0.275 shares of Independent Bank Corp. ("Buyer") common stock. ( 5 )Each option to purchase Issuer common stock, whether vested or unvested, automatically converted to the right to receive a cash payment equal to (i) the number of shares of Issuer common stock provided for in such option and (ii) the excess, if any, of $24.926 over the exercise price per share of Issuer common stock provided for in such option, which cash payment shall be made without interest and shall be net of all applicable withholding taxes. ( 6 )Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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