Jeffrey L. Buhr - 15 Dec 2025 Form 4 Insider Report for 1ST SOURCE CORP (SRCE)

Role: Executive Vice President
Signature: /s/ Brian S. Duba, Attorney-in-Fact
Issuer symbol: SRCE
Transactions as of: 15 Dec 2025
Net transactions value: -$77,714
Form type: 4
Filing time: 15 Dec 2025, 16:14:03 UTC
Previous filing: 25 Feb 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Buhr Jeffrey L	Executive Vice President	P.O. BOX 1602, SOUTH BEND	/s/ Brian S. Duba, Attorney-in-Fact	15 Dec 2025	0001599829

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SRCE	Common Stock	Sale	$77,714	-1,175	-1.7%	$66.14	68,430	15 Dec 2025	Direct
holding	SRCE	Common Stock						5,730	15 Dec 2025	By 401(k)	F1

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

Explanation of Responses:

Id	Content
F1	Between January 1, 2024 and December 31, 2024, Mr. Buhr acquired 237 shares of 1st Source Corporation common stock under the 401(k) plan. The information in this report is based on a plan statement dated December 31, 2024.