12 institutions reported holding $9.4M of MARATHON BANCORP INC (MBBC) in SEC 13F filings for 2026-06-30. Largest institutional holders: MALTESE CAPITAL MANAGEMENT LLC ($2.2M), ALLIANCEBERNSTEIN L.P. ($2.1M), RAFFLES ASSOCIATES LP ($1.6M), VANGUARD GROUP INC ($1.3M), Minerva Advisors LLC ($851,860). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MALTESE CAPITAL MANAGEMENT LLC | $2.2M | 145,298 | Added |
| 2 | ALLIANCEBERNSTEIN L.P. | $2.1M | 153,238 | Hold |
| 3 | RAFFLES ASSOCIATES LP | $1.6M | 107,664 | Hold |
| 4 | VANGUARD GROUP INC | $1.3M | 87,541 | Trimmed |
| 5 | Minerva Advisors LLC | $851,860 | 55,750 | Trimmed |
| 6 | KLCM Advisors, Inc. | $524,410 | 34,320 | Hold |
| 7 | STILWELL VALUE LLC | $305,600 | 20,000 | Hold |
| 8 | CITADEL ADVISORS LLC | $167,836 | 10,984 | New |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $166,107 | 10,871 | New |
| 10 | BlackRock, Inc. | $127,695 | 8,357 | New |
| 11 | UBS Group AG | $1,360 | 89 | New |
| 12 | Tower Research Capital LLC (TRC) | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30