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SEC.gov | Request Rate Threshold Exceeded

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For more information, please see the SEC’s Web Site Privacy and Security Policy. Thank you for your interest in the U.S. Securities and Exchange Commission.

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Internet Security Policy

By using this site, you are agreeing to security monitoring and auditing. For security purposes, and to ensure that the public service remains available to users, this government computer system employs programs to monitor network traffic to identify unauthorized attempts to upload or change information or to otherwise cause damage, including attempts to deny service to users.

Unauthorized attempts to upload information and/or change information on any portion of this site are strictly prohibited and are subject to prosecution under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act of 1996 (see Title 18 U.S.C. §§ 1001 and 1030).

To ensure our website performs well for all users, the SEC monitors the frequency of requests for SEC.gov content to ensure automated searches do not impact the ability of others to access SEC.gov content. We reserve the right to block IP addresses that submit excessive requests. Current guidelines limit users to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests.

If a user or application submits more than 10 requests per second, further requests from the IP address(es) may be limited for a brief period. Once the rate of requests has dropped below the threshold for 10 minutes, the user may resume accessing content on SEC.gov. This SEC practice is designed to limit excessive automated searches on SEC.gov and is not intended or expected to impact individuals browsing the SEC.gov website.

Note that this policy may change as the SEC manages SEC.gov to ensure that the website performs efficiently and remains available to all users.

Note: We do not offer technical support for developing or debugging scripted downloading processes.

indb-202601221/22/20260000776901false00007769012026-01-222026-01-220000776901dei:MailingAddressMember2026-01-222026-01-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report Pursuant to Section 13 or 15 (d) of The Securities and Exchange Act of 1934

DATE OF REPORT:

January 22, 2026 (Date of Earliest Event Reported)

Massachusetts (State or Other Jurisdiction of Incorporation)

1-904704-2870273 (Commission File Number)(I.R.S. Employer identification No.)

INDEPENDENT BANK CORP.

Office Address:2036 Washington Street,Hanover,Massachusetts02339 Mailing Address:288 Union Street,Rockland,Massachusetts02370 (Address of principal executive offices, including zip code)

NOT APPLICABLE

(Former Address of Principal Executive Offices)

(781)-878-6100 (Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each ClassTrading SymbolName of each exchange on which registered Common Stock, $.01 par value per shareINDBNASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act (17CFR 230.405)) or Rule 12b-2 of the Exchange Act (17CFR 240.12b-2).

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. ☐

ITEM 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 22, 2026, Independent Bank Corp. (the "Company") announced by press release its earnings for the quarter ended December 31, 2025. A copy of the press release is attached hereto as Exhibit 99.1.

The information in this Item 2.02 (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section.

ITEM 7.01REGULATION FD DISCLOSURE

The Company is furnishing presentation materials to be discussed during its earnings conference call which are included as Exhibit 99.2 to this report pursuant to Item 7.01.

The information in this Item 7.01 (including Exhibit 99.2) shall not be deemed to be "filed" for the purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section.

ITEM 9.01

FINANCIAL STATEMENTS AND EXHIBITS

d. The following exhibits are included with this Report:

Exhibit Index

Exhibit #Exhibit Description 99.1Q4 2025 Earnings Press Release dated January 22, 2026

99.2Q4 2025 Earnings Presentation

101The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document 104Cover page interactive data file (formatted as inline XBRL and contained in Exhibit 101)

SIGNATURE

Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned and hereunto duly authorized.

INDEPENDENT BANK CORP.

Date:January 22, 2026By:/s/Mark J. Ruggiero

MARK J. RUGGIERO

CHIEF FINANCIAL OFFICER