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

Rhea-AI Filing Summary

Jill Bourland, a director of Isabella Bank Corp (ISBA), reported a purchase of the issuer's common stock on 08/18/2025. The Form 4 discloses a transaction coded P with an amount acquired of 9.375, a price of $32, and beneficial ownership following the transaction of 5,509.0148. The filing was signed by Jennifer L. Gill by power of attorney on 08/19/2025.

Positive

• Director purchase disclosed, demonstrating insider activity transparency
• Form 4 filed and signed by power of attorney, meeting reporting requirements

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: Routine director purchase reported; small share amount and standard Form 4 signature via power of attorney.

This filing documents an insider purchase by a director, which is a routine disclosure under Section 16. The transaction is coded "P" (purchase) and shows the director's post-transaction beneficial ownership as 5,509.0148. The form was executed by a named attorney-in-fact, indicating administrative handling of the filing. No additional context or larger corporate actions are disclosed in the form.

Securities Analyst

TL;DR: Small purchase at $32 reported; immaterial to company financials but relevant for insider activity tracking.

The reported acquisition lists an amount of 9.375 at a price of $32 on 08/18/2025, resulting in 5,509.0148 shares beneficially owned thereafter. Given the limited size and absence of other transactions or derivative activity, this is a routine disclosure for investor transparency rather than a material market-moving event.

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^*

Bourland Jill

(Last) (First) (Middle)

619 S. MISSION 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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025

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	08/18/2025		P		9.375	A	$32	5,509.0148	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	08/19/2025
	** 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 Jill Bourland report on Form 4?

The Form 4 reports a purchase on 08/18/2025 with amount acquired 9.375, price $32, and beneficial ownership after the transaction 5,509.0148.

What does transaction code P mean on a Form 4 for ISBA?

Transaction code P denotes a purchase of the issuer's securities as reported on the form.

Who signed the Form 4 for ISBA and when?

The form was signed by /s/ Jennifer L. Gill, By Power of Attorney on 08/19/2025.

How many ISBA shares did the reporting person own after the transaction?

The Form 4 states 5,509.0148 shares beneficially owned following the reported transaction.

Is there any derivative activity disclosed in this ISBA Form 4?

No derivative securities or related transactions are disclosed in Table II of the provided Form 4.