Isabella Bank director granted 31 shares at $38.55

An ISABELLA BANK CORP director received a small stock award, modestly increasing her direct shareholdings.

Rhea-AI Filing Summary

ISABELLA BANK CORP (ISBA) director Melinda Marie Coffin reported a grant or award of 31 shares of common stock on September 1, 2026, at a reported value of $38.55 per share. After this acquisition, she holds 5,644.0262 shares of ISBA common stock directly. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 31 shares

Grant/Award 1 txn

Insider Coffin Melinda Marie

Role Director

Type	Security	Shares	Price	Value
Grant/Award	common	31	$38.55	$1K

Holdings After Transaction: common — 5,644.0262 shares (Direct)

Key Figures

Shares granted: 31 shares Grant valuation price: $38.55 per share Shares owned after transaction: 5,644.0262 shares

3 metrics

Shares granted 31 shares Grant or award of ISBA common stock on September 1, 2026

Grant valuation price $38.55 per share Reported value per share for the 31-share grant

Shares owned after transaction 5,644.0262 shares Direct holdings of Melinda Marie Coffin after the grant

Key Terms

Grant, award, or other acquisition, Rule 10b5-1 plan, direct ownership

3 terms

Grant, award, or other acquisition financial

"The transaction is described as a grant, award, or other acquisition"

Rule 10b5-1 plan regulatory

"Indicates whether transactions were made under a Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

direct ownership financial

"The filing reports the holdings as direct ownership of common stock"

FAQ

What insider transaction did ISBA report for Melinda Marie Coffin?

ISABELLA BANK CORP reported that director Melinda Marie Coffin received a grant or award of 31 shares of ISBA common stock on September 1, 2026, increasing her direct holdings to 5,644.0262 shares.

Was the recent ISBA Form 4 transaction a purchase or a grant?

The Form 4 for ISBA shows a grant, award, or other acquisition of 31 common shares to director Melinda Marie Coffin, not an open-market purchase or sale.

At what price were the ISBA shares valued in Melinda Coffin’s grant?

The 31 ISBA common shares reported for Melinda Marie Coffin’s grant on September 1, 2026 were valued at $38.55 per share, according to the Form 4.

How many ISBA shares does Melinda Coffin own after the reported grant?

Following the September 1, 2026 grant, Melinda Marie Coffin directly owns 5,644.0262 shares of ISABELLA BANK CORP common stock, as reported in the Form 4.

Was the ISBA insider transaction made under a Rule 10b5-1 plan?

The Form 4 for ISABELLA BANK CORP indicates that the Rule 10b5-1 checkbox is not checked, meaning the reported grant to Melinda Marie Coffin is not affirmed as being under a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/03/2026 - 01:06 PM Accepted by SEC EDGAR 09/03/2026 - 01:05 PM Learn about SEC filing dates

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^*

Coffin Melinda Marie

(Last) (First) (Middle)

253 S LEATON RD.

(Street)

MT. PLEASANT MICHIGAN 48858

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

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

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

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

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	09/01/2026		A		31	A	$38.55	5,644.0262	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	09/03/2026
	** 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.
* Form 4: SEC 1474 (03-26)