Marathon Bancorp, Inc.

MBBC·NASDAQ·$13.28Share Price as of 11/2·$39MMarket Cap as of 11/2

Financials

10-KFY 202609/16/26 10-QQ3 ended 03/31/2605/13/26 10-QQ2 ended 12/31/2502/11/26 10-QQ1 ended 09/30/2511/12/25 10-KFY 202509/26/25

Disclosures

8-KCurrent report10/01/26 8-KCurrent report05/28/26 8-KCurrent report04/24/26 8-KCurrent report11/18/25 8-KCurrent report04/21/25

Prospectuses and Registrations

S-8Registration of securities for employees06/09/26 S-8Registration of securities for employees09/30/25 424B3Prospectus02/21/25 424B3Prospectus02/21/25 424B3Prospectus02/21/25

Proxies

DEF 14ADefinitive proxy10/13/26 DEF 14ADefinitive proxy04/24/26 DEF 14ADefinitive proxy10/15/25 DEF 14ADefinitive proxy10/11/24 DEF 14ADefinitive proxy10/17/23

Ownership

Form 4Insider transaction09/18/26 SC 13GBeneficial ownership07/01/26 SC 13G/ABeneficial ownership (amended)07/01/26 Form 4Insider transaction06/30/26 Form 4Insider transaction06/30/26

Other

ARSAnnual report to shareholders10/13/26 11-KEmployee stock purchase plan report06/29/26 ARSAnnual report to shareholders10/15/25 11-KEmployee stock purchase plan report06/23/25 8-A12B8-A12B04/21/25