Latest Period
Q1 2026
Security Snapshot
Marathon Bancorp, Inc. /MD/ - Common Stock (MBBC) Institutional Ownership
CUSIP: 565759206
13F Institutional Holders and Ownership History from Q2 2025 to Q1 2026
Institutions Reporting
9
Shares (Excl. Options)
612,556
Price
$13.53
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- Security type / class
- Equity / Common Stock
- Symbol
- MBBC on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 612,556
- Total 13F value
- $8,077,948
- Portfolio coverage rank
- 0%
- Share change
- -170
- Value change
- -$2,279
- Number of holders
- 9
- Shares outstanding
- 2,946,885
- SEC-reported price per share
- $13.68
- Insider filing price
- $13.68
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MBBC - Marathon Bancorp, Inc. /MD/ - Common Stock is tracked under CUSIP 565759206.
- 9 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 9 to 9 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $7,454,469 to $8,077,948.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 9 institutions filings for Q1 2026.
Security key
565759206
Latest holder period
Q1 2026
13F holders
9
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
MBBC full holder history
Marathon Bancorp, Inc. /MD/ SEC filings
Marathon Bancorp, Inc. /MD/ company facts
Marathon Bancorp, Inc. /MD/ insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 565759206:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
MBBC
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Marathon Bank Employee Stock Ownership Plan Trust | 8.7% | $2,557,172 | 254,445 | Marathon Bank Employee Stock Ownership Plan Trust | 30 Jun 2025 | |||
| ALLIANCEBERNSTEIN L.P. | 5.2% | $1,863,374 | 153,238 | AllianceBernstein L.P. | 31 Dec 2025 |
As of 31 Mar 2026, 9 institutional investors reported holding 612,556 shares of Marathon Bancorp, Inc. /MD/ - Common Stock (MBBC). This represents 21% of the company’s total 2,946,885 outstanding shares.
13F concentration
Top 10 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
21%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | 5.2% | 153,238 | 0% | 0% | $1,863,374 |
| MALTESE CAPITAL MANAGEMENT LLC | 4.9% | 145,100 | 0% | 0.39% | $1,963,203 |
| RAFFLES ASSOCIATES LP | 3.7% | 107,664 | 0% | 1.3% | $1,456,694 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6% | 76,598 | 0% | 0% | $1,036,371 |
| Minerva Advisors LLC | 2% | 58,976 | 0% | 0.52% | $797,946 |
| KLCM Advisors, Inc. | 1.2% | 34,320 | 0% | 0.04% | $464,350 |
| STILWELL VALUE LLC | 0.68% | 20,000 | 0% | 0.16% | $270,600 |
| VANGUARD FIDUCIARY TRUST CO | 0.56% | 16,434 | 0% | 0% | $222,352 |
| Tower Research Capital LLC (TRC) | 0.01% | 226 | -41% | 0% | $3,058 |
| BANK OF AMERICA CORP /DE/ | 0% | 0 | -100% | $0 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
4
Latest
Q1 2026
Rows shown
1-4 of 4