Isabella Bank director granted 24 ISBA shares

A director of ISABELLA BANK CORP received a small equity award that modestly increases his direct share holdings.

Rhea-AI Filing Summary

ISABELLA BANK CORP (ISBA) director Brian Roy Sackett received a grant or award of 24 shares of common stock on September 1, 2026. The shares were acquired at a price of $38.55 per share and are held as direct ownership, bringing his reported holdings to 4,226.4275 shares.

Insider Trade Summary

Grant/Award: 24 shares

Grant/Award 1 txn

Insider Sackett Brian Roy

Role Director

Type	Security	Shares	Price	Value
Grant/Award	common	24	$38.55	$925.20

Holdings After Transaction: common — 4,226.4275 shares (Direct)

Key Figures

Shares acquired: 24 shares Price per share: $38.55 per share Total holdings after transaction: 4,226.4275 shares

3 metrics

Shares acquired 24 shares Grant or award of common stock on September 1, 2026

Price per share $38.55 per share Value reported for the 24-share grant or award

Total holdings after transaction 4,226.4275 shares Director’s direct ownership following the September 1, 2026 award

Key Terms

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

3 terms

Grant, award, or other acquisition financial

"The transaction is classified as a grant, award, or other acquisition of common stock"

Rule 10b5-1 regulatory

"The report indicates the transaction was not made under a Rule 10b5-1 plan"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

direct ownership financial

"The common stock acquired in the transaction is reported as direct ownership"

FAQ

What insider transaction did ISBA report for Brian Roy Sackett?

ISABELLA BANK CORP reported that director Brian Roy Sackett received a grant or award of 24 shares of common stock on September 1, 2026, classified as an acquisition rather than a market purchase.

At what price were the new ISBA shares attributed to Brian Roy Sackett?

The 24 ISABELLA BANK CORP shares were reported at $38.55 per share. This value is associated with the grant or award and is presented on a per-share basis in the transaction details.

How many ISBA shares does Brian Roy Sackett hold after this transaction?

After the September 1, 2026 grant or award, Brian Roy Sackett’s reported direct holdings total 4,226.4275 shares of ISABELLA BANK CORP common stock.

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

No. The transaction is reported with the document-level Rule 10b5-1 checkbox marked as false, indicating the acquisition was not affirmed as made under a Rule 10b5-1 trading plan.

Is Brian Roy Sackett a director or officer of ISABELLA BANK CORP?

Brian Roy Sackett is reported as a director of ISABELLA BANK CORP and not as an officer or ten percent owner in this insider ownership report.

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

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Available on EDGAR 09/03/2026 - 01:02 PM Accepted by SEC EDGAR 09/03/2026 - 01:02 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^*

Sackett Brian Roy

(Last) (First) (Middle)

6402 80TH AVENUE

(Street)

MECOSTA MICHIGAN 49332

(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		24	A	$38.55	4,226.4275	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)