MBBC Institutional Ownership & Shareholders
MARATHON BANCORP INC (MBBC) is currently held by 12 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $9.37M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Maltese Capital Management Llc is currently the largest disclosed institutional shareholder of MBBC tracked by InsiderSet, reporting ownership valued at approximately $2.22M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.11M, representing an estimated loss of -4.97% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 99% of the total disclosed MBBC value among the investors covered in this analysis. Major shareholders include Maltese Capital Management Llc, Alliancebernstein L.P., Raffles Associates Lp, and several other long-term asset managers with concentrated positions in MARATHON BANCORP INC (MBBC).
This page ranks the largest institutional MBBC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
12
Total Reported Value
$9.37M
Largest Holder
Maltese Capital Management Llc
Largest Position
$2.22M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
14
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Maltese Capital Management Llc | 0.40% | 145,298 | $2,220,154 | $2,109,727 | -$110,427 | -4.97% | |
| Alliancebernstein L.P. | 0.00% | 153,238 | $2,073,310 | $2,225,016 | +$151,706 | +7.32% | |
| Raffles Associates Lp | 1.40% | 107,664 | $1,645,106 | $1,563,281 | -$81,825 | -4.97% | |
| Vanguard Capital Management Llc | 0.00% | 76,027 | $1,161,693 | $1,103,912 | -$57,781 | -4.97% | |
| Minerva Advisors Llc | 0.52% | 58,976 | $797,946 | $856,332 | +$58,386 | +7.32% | |
| Klcm Advisors, Inc. | 0.04% | 34,320 | $524,410 | $498,326 | -$26,084 | -4.97% | |
| Stilwell Value Llc | 0.18% | 20,000 | $305,600 | $290,400 | -$15,200 | -4.97% | |
| Vanguard Fiduciary Trust Co | 0.00% | 11,514 | $175,934 | $167,183 | -$8,751 | -4.97% | |
| Citadel Advisors Llc | 0.00% | 10,984 | $167,836 | $159,488 | -$8,348 | -4.97% | |
| Geode Capital Management, Llc | 0.00% | 10,871 | $166,107 | $157,847 | -$8,260 | -4.97% | |
| Blackrock, Inc. | 0.00% | 8,357 | $127,695 | $121,344 | -$6,351 | -4.97% | |
| Ubs Group Ag | 0.00% | 89 | $1,360 | $1,292 | -$68 | -4.98% |
Frequently asked questions about MBBC
Who are the largest institutional holders of MBBC?
The largest institutional holders of MBBC reported in the latest SEC Form 13F filings include Maltese Capital Management Llc, Alliancebernstein L.P., Raffles Associates Lp, Vanguard Capital Management Llc, and Minerva Advisors Llc. InsiderSet ranks institutional holders by their latest reported MBBC position.
What is MBBC institutional ownership?
This page tracks MBBC positions reported by institutional investment managers through SEC Form 13F. MARATHON BANCORP INC (MBBC) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MBBC?
InsiderSet currently tracks 12 institutional managers reporting MBBC holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MBBC shareholders.
How much MBBC stock do institutions own?
Institutional investment managers disclosed approximately $9.37M in MBBC holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MBBC institutional ownership last updated?
The latest MBBC institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MBBC holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MBBC position after the reporting date.
Are institutions buying or selling MBBC?
Institutional buying and selling can be analyzed by comparing MBBC positions across consecutive 13F reporting periods. InsiderSet's MBBC Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MBBC ownership changes.
How has MBBC institutional ownership changed over time?
InsiderSet tracks MBBC institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.