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CIK 0001835385 · Non-accelerated filer<br>Smaller reporting company

Marathon Bancorp, Inc. /MD/

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Ticker
MBBC
Exchange
Nasdaq
Industry
Savings Institutions, Not Federally Chartered
FY end
Jun 30
Entity type
operating
EIN
862191258
Phone
(715) 845-7331
Business address
500 SCOTT STREET, WAUSAU, WI, 54403
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 20 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-02-23 Zillges Nicholas W President and CEO Option exercise +2,998 $6.48 $19K 37,801
2026-02-23 Zillges Nicholas W President and CEO Option exercise · Stock Options −2,998 4,500
2025-12-02 Knopf Michelle EVP and COO Other acquisition +536 $11.11 $6K 18,278
2025-12-02 Knopf Michelle EVP and COO Other acquisition +20 $11.30 $226 18,298
2025-12-02 Spatz Nora EVP and CAO Other acquisition +1,220 $11.11 $14K 35,656
2025-12-02 Spatz Nora EVP and CAO Other acquisition +45 $11.30 $509 35,701
2025-12-02 Zillges Nicholas W President and CEO Other acquisition +634 $11.11 $7K 50,060
2025-12-02 Zillges Nicholas W President and CEO Other acquisition +24 $11.30 $271 50,084
2025-12-01 Knopf Michelle EVP and COO Other acquisition +1,393 $11.27 $16K 17,742
2025-12-01 Spatz Nora EVP and CAO Other acquisition +3,166 $11.27 $36K 34,436
2025-12-01 Zillges Nicholas W President and CEO Other acquisition +1,646 $11.27 $19K 49,426
2025-11-26 Zillges Nicholas W President and CEO Purchase +1,075 $11.37 $12K 34,803
2025-11-13 Zillges Nicholas W President and CEO Purchase +1,325 $11.00 $15K 33,728
2025-06-28 Zillges Nicholas W President and CEO Shares withheld for taxes −1,169 $9.99 $12K 32,403
2025-06-28 Selting-Buchberger Joy SVP and CFO Shares withheld for taxes −517 $9.99 $5K 5,338
2025-06-28 Cornish Terry SVP and CCO Shares withheld for taxes −225 $9.99 $2K 3,044
2025-06-28 Knopf Michelle EVP and COO Shares withheld for taxes −197 $9.99 $2K 3,418
2025-06-28 Spatz Nora EVP and CAO Shares withheld for taxes −451 $9.99 $5K 15,659
2025-06-28 Zillges Nicholas W President and CEO Shares withheld for taxes −1,196 $9.99 $12K 32,376
2025-06-13 Zillges Nicholas W President and CEO Purchase +500 $9.99 $5K 33,572

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