Jill Bourland - 16 Jan 2026 Form 4 Insider Report for ISABELLA BANK CORP (ISBA)

Role: Director
Signature: /s/ Jennifer L. Gill, By Power of Attorney
Issuer symbol: ISBA
Transactions as of: 16 Jan 2026
Net transactions value: +$12,300
Form type: 4
Filing time: 21 Jan 2026, 18:30:00 UTC
Previous filing: 13 Feb 2026
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Bourland Jill	Director	619 S. MISSION ST., MOUNT PLEASANT	/s/ Jennifer L. Gill, By Power of Attorney	21 Jan 2026	0001715727

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ISBA	common	Purchase	$300	+6	+0.11%	$50.00	5,578	16 Jan 2026	Direct	F1
transaction	ISBA	common	Purchase	$12,000	+242	+4.3%	$49.58	5,820	20 Jan 2026	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Purchase pursuant to the Participation by Optional Cash Investment component of the Isabella Bank Corporation Stockholder Dividend Reinvestment And Employee Stock Purchase Plan.
F2	Shares acquired with director fees pursuant to the Isabella Bank Corporation And Related Companies Deferred Compensation Plan For Directors.