[Form 4] Isabella Bank Corporation Common stock Insider Trading Activity

Rhea-AI Filing Summary

Insider purchase recorded by a director of Isabella Bank Corp (ISBA). Director Melinda Marie Coffin acquired 35 shares of ISBA common stock on 09/02/2025 at a reported price of $33.13 per share. The filing notes the increase resulted in a total beneficial ownership of 5,050.1785 shares, and includes a disclosure that the shares include those acquired through the companys quarterly dividend reinvestment plan. The Form 4 was signed by power of attorney on 09/04/2025. The transaction is reported as an ordinary non-derivative acquisition and appears to be routine insider reinvestment activity.

Insights

Securities Analyst

TL;DR: Routine insider share purchase via dividend reinvestment, modest size, likely non-material to valuation.

The director acquired 35 common shares at $33.13, bringing beneficial ownership to 5,050.1785 shares. The filing explicitly states the purchase includes shares from the quarterly dividend reinvestment plan, indicating this is a systematic, non-discretionary accumulation rather than a strategic open-market buy. For investors, the transaction signals continued insider participation but is small relative to typical institutional or executive purchases and likely has limited impact on ISBAs capitalization or governance.

Corporate Governance Expert

TL;DR: Compliance filing documents required insider reporting; no red flags in disclosure.

The Form 4 identifies the reporting person as a director and records a straightforward acquisition code. The explanation clarifies dividend reinvestment as the source, which aligns with routine corporate benefit plans and Rule 16 reporting obligations. Signature by power of attorney is noted and dated. There are no indications of derivative transactions, atypical timing, or material changes to board-level ownership from the disclosed data.

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
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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^*

Coffin Melinda Marie

(Last) (First) (Middle)

253 S LEATON RD.

(Street)

MT. PLEASANT MI 48858

(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)
09/02/2025

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	09/02/2025		A		35	A	$33.13	5,050.1785(1)	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. Includes shares acquired through quarterly dividend reinvestment.

Remarks:

	/s/ Jerome E. Schwind, By Power of Attorney	09/04/2025
	** 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 did ISBA director Melinda Marie Coffin report on Form 4?

She reported acquiring 35 shares of Isabella Bank Corp common stock on 09/02/2025 at a price of $33.13 per share.

How many ISBA shares does the reporting person beneficially own after the transaction?

The filing reports beneficial ownership of 5,050.1785 shares following the transaction.

What was the source of the acquired ISBA shares?

The filing states the total includes shares acquired through the companys quarterly dividend reinvestment program.

When was the Form 4 signed and by whom?

The Form 4 was signed by power of attorney Jerome E. Schwind on 09/04/2025.

Does the Form 4 show any derivative transactions for ISBA by this reporting person?

No. The filing shows only a non-derivative acquisition of common stock; Table II for derivatives contains no reported transactions.