# EDGAR Filing Document

**Accession Number:** 0000842517
**File Stem:** 0000842517-25-000212
**Filing Date:** 2025-11
**Character Count:** 10061
**Document Hash:** b197863cb27f93fb18471c02e39f8272
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000842517-25-000212.hdr.sgml**: 20251120

**ACCESSION NUMBER**: 0000842517-25-000212

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20251120

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251120

**DATE AS OF CHANGE**: 20251120

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ISABELLA BANK CORP
- **CENTRAL INDEX KEY:** 0000842517
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 382830092
- **STATE OF INCORPORATION:** MI
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42639
- **FILM NUMBER:** 251503581

**BUSINESS ADDRESS:**
- **STREET 1:** 401 NORTH MAIN STREET
- **CITY:** MT PLEASANT
- **STATE:** MI
- **ZIP:** 48858
- **BUSINESS PHONE:** 9897729471

**MAIL ADDRESS:**
- **STREET 1:** 401 NORTH MAIN STREET
- **CITY:** MT PLEASANT
- **STATE:** MI
- **ZIP:** 48858

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ISABELLA BANK Corp
- **DATE OF NAME CHANGE:** 20170403

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ISABELLA BANK CORP
- **DATE OF NAME CHANGE:** 20080602

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** IBT BANCORP INC /MI/
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'? isba-20251120

**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 Exchange Act of 1934**

**Date of Report (Date of earliest event reported): November 20, 2025**

**ISABELLA BANK CORPORATION**

**(Exact name of registrant as specified in its charter)**

---

| | | |
|:---|:---|:---|
| **Michigan** | **000-18415** | **38-2830092** |
| **(State or other jurisdiction<br>of incorporation)** | **(Commission<br>File Number)** | **(IRS Employer<br>Identification No.)** |

---

---

| | | | |
|:---|:---|:---|:---|
| **401 North Main Street** | **Mt. Pleasant** | **Michigan** | **48858-1649** |
| **(Address of principal executive offices)** | **(Address of principal executive offices)** | **(Address of principal executive offices)** | **(Zip Code)** |

---

**Registrant's telephone number, including area code: (989) 772-9471**

**Not Applicable**

**(Former name or former address, if changed since last report.)**

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:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule l4a-12 under the Exchange Act (17 CFR 240.l4a-l2)

☐ Pre-commencement communications pursuant to Rule l4d-2(b) under the Exchange Act (17 CFR 240.l4d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.l3e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class TradingSymbol(s) Name of each exchange on which registered <br> <u>Common stock, no par value per share</u> <u>ISBA</u> <u>The Nasdaq Stock Market LLC</u>

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 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. ☐

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**Section 8 - Other Events**

**Item 8.01 Other Events**.

On November 20, 2025, Isabella Bank Corporation issued a press release announcing that its Board of Directors declared a twenty-eight cent ($0.28) per common share fourth quarter cash dividend, payable December 19, 2025 to shareholders of record as of December 17, 2025.

A copy of the press release is filed as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

The information in this Item 8.01 of Form 8-K and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing made by the registrant under the Securities Act of 1933, whether made before or after the date hereof, except as shall be expressly set forth by specific reference in such filing.

**Section 9 - Financial Statements and Exhibits**

**Item 9.01 Financial Statements and Exhibits.**

(d)&nbsp;&nbsp;&nbsp;&nbsp;Exhibits:

---

| | |
|:---|:---|
| Exhibit<br>No. | Description |
| <u>[99.1](isba_2025q4xdivannxex991.htm)</u> | <u>[Press release issued November 20, 2025](isba_2025q4xdivannxex991.htm)</u> |
| 104 | Cover page interactive data file - the cover page XBRL tags are embedded within the inline XBRL document |

---

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 hereunto duly authorized.

---

| | | | |
|:---|:---|:---|:---|
| | | ISABELLA BANK CORPORATION | ISABELLA BANK CORPORATION |
| Dated: | &nbsp;&nbsp;&nbsp;November 20, 2025 | By: | /s/ Jerome E. Schwind |
|  |  |  | Jerome E. Schwind, CEO |

---

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**INDEX TO EXHIBITS**

---

| | |
|:---|:---|
| Exhibit<br>No. | Description |
| <u>[99.1](isba_2025q4xdivannxex991.htm)</u> | <u>[Press release issued November 20, 2025](isba_2025q4xdivannxex991.htm)</u> |
| 104 | Cover page interactive data file - the cover page XBRL tags are embedded within the inline XBRL document |

---

## Exhibit 99.1

**Exhibit 99.1**

![logoa.jpg](logoa.jpg)

**Isabella Bank Corporation Announces Fourth Quarter 2025 Dividend**

Mt. Pleasant, Michigan, November 20, 2025 - Isabella Bank Corporation (Nasdaq: ISBA) today announced its Board of Directors declared a fourth-quarter cash dividend of $0.28 per common share at its regular meeting on November 19, 2025. The dividend will be payable December 19, 2025 to shareholders of record as of December 17, 2025. Based on ISBA's closing stock price of $40.50 per share as of November 19, 2025, the annualized cash dividend yield is 2.77%.

**About Isabella Bank Corporation**

Isabella Bank Corporation (Nasdaq: ISBA) is the parent holding company of Isabella Bank, a state-chartered community bank headquartered in Mt. Pleasant, Michigan. Isabella Bank was established in 1903 and has been committed to serving its customers' and communities' local banking needs for over 120 years. The Bank offers personal and commercial lending and deposit products, as well as investment, trust, and estate planning services through Isabella Wealth. The Bank has 31 locations throughout eight Mid-Michigan counties: Bay, Clare, Gratiot, Isabella, Mecosta, Midland, Montcalm, and Saginaw.

For more information about Isabella Bank Corporation, visit the Investor Relations link at www.isabellabank.com.

**Contact**

Lori Peterson, Director of Marketing

Phone: 989-779-6333 Fax: 989-775-5501

**Forward-Looking Statements**

Information in this release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Rule 175 promulgated thereunder, and Section 21E of the Securities Exchange Act of 1934, as amended and Rule 3b-6 promulgated thereunder. We intend such forward looking statements to be covered by the safe harbor provisions for forward looking statements contained in the Private Securities Litigation Reform Act of 1995, and are included in this statement for purposes of these safe harbor provisions. Forward-looking statements generally relate to losses, impact of events, financial condition, plans, objectives, outlook for earnings, revenues, expenses, capital and liquidity levels and ratios, asset levels, asset quality, financial position, and other matters regarding or affecting the Company and its future business and operations. Forward-looking statements are typically identified by words or phrases such as "will likely result", "expect", "plan", "believe", "estimate", "anticipate", "strategy", "trend", "forecast", "outlook", "project", "intend", "assume", "outcome", "continue", "remain", "potential", "opportunity", "comfortable", "current", "position", "maintain", "sustain", "seek", "achieve" and variations of such words and similar expressions, or future or conditional verbs such as will, would, should, could or may. Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect. The matters discussed in these forward-looking statements are subject to various risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected, or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors described in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, or included in any subsequent filing by the Company with the Securities and Exchange Commission. Forward-looking statements are based on beliefs and assumptions using information available at the time the statements are made. The Company cautions you not to unduly rely on forward-looking statements because the assumptions, beliefs, expectations, and projections about future events may, and often do, differ materially from actual results. Any forward-looking statement speaks only as to the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect developments occurring after the statement is made.

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