Marathon Bancorp, Inc. /Md/ (MBBC)CEO bought ~$2.5K

~$2.5K

Approx. value · 170 sh @ $14.75

51K

Holds after · shares reported

Traded

Jun 10, 2026

Filed

Jun 11, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. May 28, 2026Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote“On May 28, 2026, the stockholders of Marathon Bancorp, Inc. (the “Company”) approved the Company’s 2026 Equity Incentive Plan (the “Plan”), which provides for the grant of stock-based awards to officers, employees and directors of the Company and Marathon Bank.”
2. Jun 3, 2026Insider · 4 peopleInsiders: 4 purchases (~$19K)
3. Jun 4, 2026Insider · 4 peopleInsiders: 4 purchases (~$2K)
4. Jun 5, 2026Insider · 4 peopleInsiders: 4 purchases (~$9K)
5. Jun 8, 2026Insider · 4 peopleInsiders: 4 purchases (~$5K)
6. Jun 9, 2026Insider · 4 peopleInsiders: 4 purchases (~$53K)
7. Jun 10, 2026 · this disclosureInsider · 4 insiders in a week, 2nd time since 2021CEO purchased ~$2.5K of MBBC shares in the open market

What came next

1. Jun 10, 2026Insider · 3 peopleInsiders: 3 purchases (~$15K)
2. Jun 16, 2026Insider · 4 insiders in a week, 2nd time since 2021CEO purchased ~$15K of MBBC shares in the open market
3. Sep 30, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On September 30, 2026, Joy C. Selting-Buchberger, the Chief Financial Officer of Marathon Bancorp, Inc. (the “Company”) and Marathon Bank (the “Bank”) informed the Boards of Directors of the Company and the Bank of her decision to retire as Chief Financial Officer of the Company and the Bank on July 2, 2027.”

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Marathon Bancorp, Inc. /Md/

OQRO holds no insider, Congress, fund or contract record for Marathon Bancorp, Inc. /Md/ dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MBBC page.

Other recent filings by Nicholas W Zillges, President and CEO

• SEC Form 4 at Marathon Bancorp, Inc. /Md/ (MBBC)Jun 17, 2026
• SEC Form 4 at Marathon Bancorp, Inc. /Md/ (MBBC)Jun 11, 2026
• SEC Form 4 at Marathon Bancorp, Inc. /Md/ (MBBC)Jun 11, 2026
• SEC Form 4 at Marathon Bancorp, Inc. /Md/ (MBBC)Jun 11, 2026
• SEC Form 4 at Marathon Bancorp, Inc. /Md/ (MBBC)Jun 11, 2026

The full history of Nicholas W Zillges, President and CEO is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Marathon Bancorp, Inc. /Md/

• SEC Form 4Jun 17, 2026
• SEC Form 4Jun 11, 2026
• SEC Form 4Jun 11, 2026
• SEC Form 4Jun 11, 2026
• SEC Form 4Jun 11, 2026
• SEC Form 4Jun 11, 2026

Everything OQRO holds on this company is on its MBBC page.