Marathon Bancorp, Inc. /MD/ — Director's Dealing 2025

Dec 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Marathon Bancorp, Inc. /MD/ (MBBC)
CIK: 0001835385
Period of Report: 2025-12-01

Reporting Person: Spatz Nora (EVP and CAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-01	Common Stock	I	3166	$11.2668	Acquired	34436	Indirect
2025-12-02	Common Stock	I	1220	$11.11	Acquired	35656	Indirect
2025-12-02	Common Stock	I	45	$11.30	Acquired	35701	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	15659	Direct
Common Stock	1598	Indirect
Common Stock	1149	Indirect
Common Stock	1209	Indirect
Common Stock	1372	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options	$8.1294	2032-06-28	Common Stock (5999)	5999	Direct
Stock Options	$6.4831	2033-05-16	Common Stock (4804)	4804	Direct

Footnotes

F1: Includes shares of restricted stock which vest at a rate of 20% per year commencing on June 28, 2023.

F2: Includes shares of restricted stock which vest at a rate of 20% per year commencing on May 16, 2024.

F3: Stock options vest at a rate of 20% per year commencing on June 28, 2023.

F4: Stock options vest at a rate of 20% per year commencing on May 16, 2024.