Sec Form 4 Filing - O'DAY SUSAN PERRY @ INDEPENDENT BANK CORP - 2025-05-20

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 O'DAY SUSAN PERRY 2. Issuer Name and Ticker or Trading Symbol INDEPENDENT BANK CORP [ INDB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O INDEPENDENT BANK CORP., 288 UNION STREET 3. Date of Earliest Transaction (MM/DD/YY) 05/20/2025 (Street) ROCKLAND, MA02370 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 05/20/2025 A 938 ( 1 ) A $ 0 5,671 D Common Stock 95 I by Immediate Family Member ( 2 ) Common Stock 100,000 I by Corporation ( 3 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other O'DAY SUSAN PERRY C/O INDEPENDENT BANK CORP. 288 UNION STREET ROCKLAND, MA02370 X Signatures /s/ Maureen A. Gaffney, Power of Attorney for Susan Perry O'Day 05/21/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Independent Bank Corp. awarded restricted stock to the Filer per the Independent Bank Corp. 2018 Non-Employee Director Stock Plan in a transaction exempt pursuant to Rule 16b-3(d). Shares immediately vested on the date of grant. ( 2 )The Filer previously reported indirect ownership of 191 shares held by an estate of which the Filer served as executor. Of such 191 shares, 95 have been transferred directly to the Filer and 95 have been transferred to an immediate family member of the Filer following the settlement of the estate. The amount of shares beneficially owned has been reduced by one share to reflect rounding in connection with the transfer of the shares from the estate. The filing of this statement should not be construed as an admission that the Filer is, for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, the beneficial owner of such securities. ( 3 )Shares held in the name of A.W. Perry. The Filer is a member of the board of directors of A.W. Perry. The filing of this statement should not be construed as an admission that the Filer is, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of such securities.

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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