MARATHON BANCORP INC (MBBC)
Institutional ownership reported to the SEC as of Q2 2026, across 12 quarters.
Institutions report 741,776 shares against 2,950,746 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (cy2026q1i).
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| RAFFLES ASSOCIATES LP | $3.3M | 215,328 | 1.44% | 5q | +100.0%+$1.6M |
| MALTESE CAPITAL MANAGEMENT LLC | $2.2M | 145,298 | 0.40% | 5q | HELD |
| ALLIANCEBERNSTEIN L.P. | $2.1M | 153,238 | 0.00% | 5q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.2M | 76,027 | 0.00% | 2q | -0.7%-$8.7K |
| Minerva Advisors LLC | $851.9K | 55,750 | 0.54% | 5q | -5.5%-$49.3K |
| KLCM Advisors, Inc. | $524.4K | 34,320 | 0.04% | 3q | HELD |
| STILWELL VALUE LLC | $305.6K | 20,000 | 0.18% | 5q | HELD |
| VANGUARD FIDUCIARY TRUST CO | $175.9K | 11,514 | 0.00% | 2q | -29.9%-$75.2K |
| CITADEL ADVISORS LLC | $167.8K | 10,984 | 0.00% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $166.1K | 10,871 | 0.00% | new | NEW |
| BlackRock, Inc. | $127.7K | 8,357 | 0.00% | new | NEW |
| UBS Group AG | $1.4K | 89 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-01 | 13G | Marathon Bank 401(k) Plan Trust | 6.6% |
| 2026-07-01 | 13G/A | Marathon Bank 401(k) Plan Trust | 7.3% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 12 | $11.1M | 741,776 | 4 | 1 | 3 | 0.0% |
| Q1 2026 | 9 | $8.1M | 612,556 | 0 | 0 | 1 | 0.0% |
| Q4 2025 | 9 | $7.5M | 612,726 | 1 | 4 | 1 | 0.0% |
| Q3 2025 | 11 | $5.7M | 550,129 | 0 | 4 | 2 | 0.0% |
| Q2 2025 | 12 | $5.2M | 525,174 | 11 | 1 | 0 | 0.0% |
| Q1 2025 | 1 | $332.5K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q4 2024 | 1 | $350.0K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q3 2024 | 1 | $220.5K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q2 2024 | 1 | $213.8K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q1 2024 | 1 | $233.8K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q4 2023 | 1 | $233.5K | 25,000 | 0 | 0 | 0 | 0.0% |
| Q3 2023 | 1 | $215.0K | 25,000 | 1 | 0 | 0 | 0.0% |