MBBC · Marathon Bancorp, Inc. · Shareholders & Ownership
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Every disclosed holder of MBBC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MBBC
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 638,191 | 21.20% |
| Insiders (Forms 3, 4, 5) | 366,238 | 12.17% |
| 13D/G-only blocks | 470,516 | 15.63% |
| Remaining | 1,534,958 | 51.00% |
| Registered funds (N-PORT, not summed) | 94,390 | 3.14% |
Shares outstanding: 3,009,903, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MBBC
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Marathon Bank Employee Stock Ownership Plan Trust
13G
CIK 2083225 · Pension or benefit plan · Jun 30, 2025
Rule 13d-1(b), qualified institution
|
254,445 | ||
| 2 |
Marathon Bank 401(k) Plan Trust
13G
CIK 2142484 · Pension or benefit plan · Jun 30, 2026
Rule 13d-1(b), qualified institution
|
216,071 | ||
| 3 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
153,238 | ||
| 4 |
MALTESE CAPITAL MANAGEMENT LLC
13F
CIK 1040762 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
145,298 | ||
| 5 |
|
112,129 | ||
| 6 |
RAFFLES ASSOCIATES LP
13F
CIK 1169581 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
107,664 | ||
| 7 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
76,027 | ||
| 8 |
|
75,007 | ||
| 9 |
Minerva Advisors LLC
13F
CIK 1541536 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
55,750 | ||
| 10 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
55,400 | ||
| 11 |
|
35,711 | ||
| 12 |
KLCM Advisors, Inc.
13F
CIK 1166620 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
34,320 | ||
| 13 |
|
30,131 | ||
| 14 |
|
28,725 | ||
| 15 |
|
28,678 | ||
| 16 |
|
27,110 | ||
| 17 |
|
20,246 | ||
| 18 |
STILWELL VALUE LLC
13F
CIK 1397076 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
20,000 | ||
| 19 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
18,940 | ||
| 20 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Sep 30, 2026
|
14,949 | ||
| 21 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,514 | ||
| 22 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,984 | ||
| 23 |
|
8,501 | ||
| 24 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,357 | ||
| 24.1 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
7,897 | ||
| 25 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
8,036 | ||
| 26 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
1,970 | ||
| 27 |
VANGUARD BALANCED INDEX FUND
Fund
S000002560 · Registered fund · Jun 30, 2026
VANGUARD VALLEY FORGE FUNDS, not summed
|
1,687 | ||
| 28 |
1290 VT Micro Cap Portfolio
Fund
S000044688 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
460 | ||
| 29 |
|
89 | ||
| 30 |
CITIGROUP INC
13F
CIK 831001 · Bank · Sep 30, 2026
|
1 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.