Isabella Bank (ISBA) director adds 242 shares via fees plan

Rhea-AI Filing Summary

Isabella Bank Corporation director David Brian Behen reported acquiring additional common shares through a compensation-related transaction. On January 20, 2026, he acquired 242.0331 shares of common stock at a price of $49.58 per share, coded as an open-market or similar purchase (transaction code P) tied to director compensation.

According to the footnotes, these shares were acquired with director fees under the Isabella Bank Corporation and Related Companies Deferred Compensation Plan for Directors, and his holdings also include shares accumulated through quarterly dividend reinvestment. Following this transaction, Behen directly beneficially owned 610.9958 common shares of Isabella Bank Corporation.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Behen David Brian

(Last) (First) (Middle)

1995 HIGHLAND DRIVE

(Street)

ANN ARBOR MI 48108

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ISABELLA BANK CORP [ ISBA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/20/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	01/20/2026		P(1)		242.0331	A	$49.58	610.9958(2)	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Shares acquired with director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.

2. Includes shares acquired through quarterly dividend reinvestment.

Remarks:

	/s/ Jennifer L. Gill, By Power of Attorney	01/23/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transaction did Isabella Bank (ISBA) director David Brian Behen report?

Director David Brian Behen reported acquiring 242.0331 shares of Isabella Bank Corporation common stock on January 20, 2026, in a transaction coded as a purchase (P).

At what price were the Isabella Bank (ISBA) shares acquired in this Form 4?

The reported transaction shows that 242.0331 common shares were acquired at a price of $49.58 per share.

How many Isabella Bank (ISBA) shares does the director own after this transaction?

After the reported transaction, director David Brian Behen beneficially owned 610.9958 shares of Isabella Bank Corporation common stock, held directly.

What is the source of the shares acquired by the Isabella Bank (ISBA) director?

The footnotes state that the shares were acquired with director fees under the Isabella Bank Corporation and Related Companies Deferred Compensation Plan for Directors.

Do the Isabella Bank (ISBA) director7s holdings include dividend reinvestment shares?

Yes. A footnote explains that the reported total includes shares acquired through quarterly dividend reinvestment.

Is this Isabella Bank (ISBA) insider transaction reported as direct or indirect ownership?

The Form 4 indicates that the 610.9958 shares owned following the transaction are held with direct (D) ownership.