indb-20260727 8-K 7/27/2026 INDEPENDENT BANK CORP. Massachusetts 1-9047 781 878-6100 0000776901 false 0000776901 2026-07-27 2026-07-27 0000776901 dei:MailingAddressMember 2026-07-27 2026-07-27 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: July 27, 2026 (Date of Earliest Event Reported) Massachusetts (State or Other Jurisdiction of Incorporation) 1-9047 04-2870273 (Commission File Number) (I.R.S. Employer identification No.) INDEPENDENT BANK CORP. Office Address: 2036 Washington Street, Hanover, Massachusetts 02339 Mailing Address: 288 Union Street, Rockland, Massachusetts 02370 (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 Class Trading Symbol Name of each exchange on which registered Common Stock, $0.01 par value per share INDB NASDAQ 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 7.01 REGULATION FD DISCLOSURE Attached as Exhibit 99.1 hereto is a copy of an investor presentation that will be used at the 2026 KBW Summer Bank Conference on Tuesday, July 28, 2026. ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS d.         The following exhibits are included with this Report: Exhibit Index Exhibit # Exhibit Description 99.1 Independent Bank Corp. presentation materials that will be used at the 2026 KBW Summer Bank Conference . 104 Cover page interactive data file (embedded within the Inline XBRL document). 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: July 27, 2026 By: /s/Mark J. Ruggiero MARK J. RUGGIERO CHIEF FINANCIAL OFFICER

Independent Bank Corp. filed an 8-K on July 27, 2026 to disclose an investor presentation for the KBW Summer Bank Conference scheduled for July 28, 2026, providing stakeholders with insights into company performance and market position under Regulation FD.

Independent Bank Corp. is issuing an investor presentation for the upcoming 2026 KBW Summer Bank Conference scheduled for July 28, 2026. This filing includes materials that will be used to communicate with investors, providing insights into the company's performance and future outlook. This event is significant as it allows the bank to engage with stakeholders and clarify its market position. The presentation forms part of their scheduled disclosures under Regulation FD, aimed at ensuring equal access to material information for all investors.

INDEPENDENT BANK CORP.

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