Ownership Summary
According to SEC filings for the period ending December 2025, Marathon Bancorp, Inc. /MD/ (NASDAQ:MBBC) is held by 9 institutional firms.
- Marathon Bancorp saw its institutional ownership percentage rose to 21.7% in December 2025 from 17.6% in September 2025.
- Institutional share ownership changed by 24.85% QoQ, while the number of institutional owners saw an increase of 800.00% YoY.
- Of these 9 institutional investors, 5 increased their holdings in Marathon Bancorp, while 1 of them reduced positions, and 3 investors maintained their exposure.
- Collectively, institutional investors increased their stake in Marathon Bancorp to 612.73K shares as of December 2025, a change that is up by 121.97K shares quarter on quarter and up 587.73K shares year over year.
- ALLIANCEBERNSTEIN L.P. continues to be the largest institutional holder of Marathon Bancorp as of December 31, 2025, with a position of 153.24K shares, representing 5.43% of the company's outstanding stock.
- Among the most significant buyers of Marathon Bancorp during December 2025 were VANGUARD GROUP INC (57.63K), KLCM Advisors, Inc. (34.32K), ALLIANCEBERNSTEIN L.P. (20.00K), MALTESE CAPITAL MANAGEMENT LLC (10.00K), Tower Research Capital LLC (TRC) (14).
- Leading sellers of Marathon Bancorp stock in December 2025 included BANK OF AMERICA CORP /DE/ (5).
- The top 9 institutional holders of Marathon Bancorp for the quarter ending December 2025 included ALLIANCEBERNSTEIN L.P. (153.24K), MALTESE CAPITAL MANAGEMENT LLC (145.10K), RAFFLES ASSOCIATES LP (107.66K), VANGUARD GROUP INC (93.03K), Minerva Advisors LLC (58.98K), KLCM Advisors, Inc. (34.32K), Stilwell Value LLC (20.00K), Tower Research Capital LLC (TRC) (381), BANK OF AMERICA CORP /DE/ (15).