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

Rhea-AI Filing Summary

Neil Michael McDonnell, President and Director of Isabella Bank Corp (ISBA), reported an open-market acquisition on 09/02/2025. The filing shows an acquisition of 4 shares at a price of $33.13, bringing his beneficial ownership to 9,548.8367 shares, and notes those shares include amounts acquired through the quarterly dividend reinvestment plan.

Positive

• Transparent disclosure of insider activity by the President and Director
• Dividend reinvestment used to increase ownership, showing alignment with shareholder returns

Negative

• None.

Insights

Financial Analyst

TL;DR: Small, routine insider acquisition via dividend reinvestment; immaterial to company valuation.

The Form 4 discloses a 09/02/2025 acquisition of 4 common shares at $33.13 by Neil Michael McDonnell, reported as Director and President. The post-transaction beneficial ownership is 9,548.8367 shares, with an explicit remark that some shares were acquired through the quarterly dividend reinvestment plan. This appears to be an administrative update reflecting routine dividend reinvestment rather than a strategic large purchase; dollar value is minimal relative to typical institutional or market-moving trades.

Corporate Governance Expert

TL;DR: Disclosure meets Section 16 requirements; transaction aligns with executive role and dividend policy.

The reporting is filed individually and executed by a power of attorney on 09/04/2025. The form identifies the reporting person as both an officer (President) and a director, and clearly notes the dividend reinvestment as the source. There are no indications of amendments, unusual derivative activity, or changes in control; this is a routine insider reporting event consistent with governance transparency obligations.

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^*

McDonnell Neil Michael

(Last) (First) (Middle)

401 N MAIN ST

(Street)

MOUNT 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
X	Officer (give title below)		Other (specify below)
	President

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		4	A	$33.13	9,548.8367(1)	D(1)

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 Neil Michael McDonnell report on Form 4 for ISBA?

He reported an acquisition of 4 common shares at $33.13 on 09/02/2025, increasing his beneficial ownership to 9,548.8367 shares.

Was the transaction part of a dividend reinvestment plan?

Yes. The filing explicitly states the shares include amounts acquired through the quarterly dividend reinvestment.

What roles does the reporting person hold at Isabella Bank Corp (ISBA)?

Neil Michael McDonnell is listed as President and a Director in the Form 4.

When was the Form 4 executed and filed?

The transaction date is 09/02/2025 and the signature (by power of attorney) is dated 09/04/2025.

Does the Form 4 show any derivative transactions or large transfers?

No. Table II for derivative securities has no entries; the reported activity is a small non-derivative acquisition.