Isabella Bank Corp (ISBA) director receives 36-share stock grant

Rhea-AI Filing Summary

Isabella Bank Corp director Sarah R. Opperman reported receiving a grant of common stock. On March 2, 2026, she acquired 36.0000 common shares as a grant or award at $48.54 per share. After this transaction, she directly owns 24,448.0602 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Opperman Sarah R

Role Director

Type	Security	Shares	Price	Value
Grant/Award	common	36	$48.54	$2K

Holdings After Transaction: common — 24,448.06 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Opperman Sarah R

(Last) (First) (Middle)

2313 OAKFIELD DRIVE

(Street)

MIDLAND MI 48640

(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)
03/02/2026

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	03/02/2026		A		36	A	$48.54	24,448.0602	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:

Remarks:

	/s/ Jennifer L. Gill, By Power of Attorney	03/04/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Isabella Bank Corp (ISBA) report for Sarah R. Opperman?

Isabella Bank Corp director Sarah R. Opperman reported acquiring 36.0000 common shares as a grant or award. The Form 4 shows this non-derivative stock transaction occurred on March 2, 2026, and reflects a change in her directly held share balance.

How many Isabella Bank Corp (ISBA) shares does Sarah R. Opperman own after the Form 4 transaction?

After the reported grant, Sarah R. Opperman directly owns 24,448.0602 Isabella Bank Corp common shares. This updated total reflects the addition of 36.0000 shares awarded to her, as disclosed in the Form 4 insider trading report filed for March 2, 2026.

Was the Isabella Bank Corp (ISBA) insider transaction a purchase or a grant?

The insider transaction was a grant or award acquisition, not an open-market purchase. The Form 4 classifies the March 2, 2026 transaction under code “A,” meaning Opperman received 36.0000 common shares as a grant, rather than buying them at her own discretion.

What price per share was used for Sarah R. Opperman’s Isabella Bank Corp grant?

The grant to Sarah R. Opperman was valued at $48.54 per common share. This price is shown as the transaction price per share on the Form 4 for the 36.0000 non-derivative common shares awarded to her on March 2, 2026, as a director.

Does the Form 4 show Sarah R. Opperman’s Isabella Bank Corp ownership as direct or indirect?

The Form 4 states that Sarah R. Opperman’s ownership of Isabella Bank Corp common shares is direct. The transaction is marked with ownership type and code “D,” indicating the 24,448.0602 shares, including the 36.0000-share grant, are held directly in her name.