Company: ISBA
Filing Date: 2025-11-10
Form Type: 10-Q
Source: 0000842517-25-000210
Chunk: 10

Company: ISABELLA BANK CORP
Filing Date: 2025-11-10
Form: 10-Q
Item: Part II, Item 2
Chunk 10
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6Second Amended and Restated Bylaws, as amended on September 24, 2025 (6)31.1Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by the Principal Executive Officer31.2Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by the Principal Financial Officer32Section 1350 Certification of Principal Executive Officer and Principal Financial Officer101.1*101.INS (Inline XBRL Instance Document)101.SCH (Inline XBRL Taxonomy Extension Schema Document)101.CAL (Inline XBRL Calculation Linkbase Document)101.LAB (Inline XBRL Taxonomy Label Linkbase Document)101.DEF (Inline XBRL Taxonomy Linkbase Document)101.PRE (Inline XBRL Taxonomy Presentation Linkbase Document)104Cover Page Interactive Data File

*In accordance with Rule 406T of Regulations S-T, the XBRL related information shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, and shall not be part of any registration statement or other document filed under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.(1)Previously filed as an Exhibit to the Isabella Bank Corporation Form 10-K, filed March 12, 1991, and incorporated herein by reference(2)Previously filed as an Exhibit to the Isabella Bank Corporation Form 10-K, filed March 26, 1994, and incorporated herein by reference.(3)Previously filed as an Exhibit to Isabella Bank Corporation Form 10-K, filed March 22, 2000, and incorporated herein by reference.(4)Previously filed as an Exhibit to Isabella Bank Corporation Form 10-K, filed March 27, 2001, and incorporated herein by reference.(5)Previously filed as an Exhibit to Isabella Bank Corporation Form 8-K, filed May 16, 2008, and incorporated herein by reference.(6)Previously filed as an Exhibit to Isabella Bank Corporation Form 8-K, filed September 30, 2025, and incorporated herein by reference.

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SIGNATURES

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

Isabella Bank Corporation