Marathon Bancorp, Inc.
MBBC- Exchange
- Nasdaq
- Industry
- Savings Institutions, Not Federally Chartered
- SEC CIK
- 0001835385
No open-market purchases or sales by Marathon Bancorp, Inc. insiders were filed in the last 90 days; 12 institutions reported holding it in 13F filings for Q2 2026, worth $9.42M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Marathon Bancorp, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 9
- +1 vs. Q4 2025
- Shares held
- 612.6K
- +92.9K (+17.9%) vs. Q4 2025
- Total value
- $8.08M
- +$1.76M (+27.8%) vs. Q4 2025
- New holders
- 2
- 0 more added
- Sold out
- 1
- 1 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MBBC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 12 | $9.42M |
| Q1 2026 | 9 | $8.08M |
| Q4 2025 | 9 | $7.45M |
| Q3 2025 | 11 | $5.74M |
| Q2 2025 | 12 | $5.23M |
| Q1 2025 | 1 | $332.5K |
| Q4 2024 | 1 | $350.0K |
| Q3 2024 | 1 | $220.5K |
| Q2 2024 | 1 | $213.8K |
| Q1 2024 | 1 | $233.8K |
| Q4 2023 | 1 | $233.5K |
| Q3 2023 | 1 | $215.0K |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Marathon Bancorp, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Maltese Capital Management LLC | 145,100 | $1.96M | 0.39% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 153,238 | $1.86M | 0.00% | 00.0% | Unchanged |
| Raffles Associates LP | 107,664 | $1.46M | 1.26% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 76,598 | $1.04M | 0.00% | +76,598 | New |
| Minerva Advisors LLC | 58,976 | $797.9K | 0.52% | 00.0% | Unchanged |
| KLCM Advisors, Inc. | 34,320 | $464.4K | 0.04% | 00.0% | Unchanged |
| Stilwell Value LLC | 20,000 | $270.6K | 0.16% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 16,434 | $222.4K | 0.00% | +16,434 | New |
| Tower Research Capital LLC (TRC) | 226 | $3.06K | 0.00% | −155−40.7% | Reduced |
| Bank of America Corp | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |