Marathon Bancorp MBBC SEC Filings

NASDAQ MBBC
$14.13 -0.07 (-0.49%)
At close: Nov 13, 2026 · 4:00 PM EST
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Marathon Bancorp, Inc. /MD/ (MBBC) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
110-QQuarterly & Annual Report0001104659-26-125239Nov 10, 2026 4:30 PM
2ARSOthers0001104659-26-115484Oct 13, 2026 12:03 AM
3DEF 14AOthers0001104659-26-115479Oct 13, 2026 12:01 AM
48-KCurrent Report0000943374-26-000436Oct 1, 2026 12:01 AM
54Insider Transaction0001437749-26-030752Sep 18, 2026 8:17 PM
610-KQuarterly & Annual Report0001104659-26-108076Sep 16, 2026 7:31 AM
7SCHEDULE 13GBeneficial Ownership Report0001104659-26-079924Jul 1, 2026 9:21 PM
8SCHEDULE 13GBeneficial Ownership Report0001104659-26-079919Jul 1, 2026 9:20 PM
94Insider Transaction0001437749-26-022178Jun 30, 2026 9:41 PM
104Insider Transaction0001437749-26-022176Jun 30, 2026 9:37 PM
114Insider Transaction0001437749-26-022173Jun 30, 2026 9:34 PM
124Insider Transaction0001437749-26-022171Jun 30, 2026 9:33 PM
134Insider Transaction0001437749-26-022169Jun 30, 2026 9:31 PM
1411-KOthers0001104659-26-078665Jun 29, 2026 3:08 PM
154Insider Transaction0001437749-26-020909Jun 17, 2026 4:56 PM
164Insider Transaction0001437749-26-020823Jun 16, 2026 8:49 PM
174Insider Transaction0001437749-26-020821Jun 16, 2026 8:49 PM
184Insider Transaction0001437749-26-020820Jun 16, 2026 8:48 PM
194Insider Transaction0001437749-26-020819Jun 16, 2026 8:47 PM
204Insider Transaction0001437749-26-020818Jun 16, 2026 8:47 PM
214Insider Transaction0001437749-26-020817Jun 16, 2026 8:46 PM
224Insider Transaction0001437749-26-020816Jun 16, 2026 8:45 PM
234Insider Transaction0001437749-26-020815Jun 16, 2026 8:44 PM
244Insider Transaction0001437749-26-020350Jun 11, 2026 10:08 PM
254Insider Transaction0001437749-26-020348Jun 11, 2026 10:05 PM
264Insider Transaction0001437749-26-020346Jun 11, 2026 10:01 PM
274Insider Transaction0001437749-26-020344Jun 11, 2026 9:59 PM
28S-8Prospectus0000943374-26-000226Jun 9, 2026 10:36 PM
294Insider Transaction0001437749-26-019701Jun 5, 2026 4:49 PM
304Insider Transaction0001437749-26-019700Jun 5, 2026 4:47 PM
314Insider Transaction0001437749-26-019699Jun 5, 2026 4:47 PM
324Insider Transaction0001437749-26-019698Jun 5, 2026 4:46 PM
334Insider Transaction0001437749-26-019697Jun 5, 2026 4:45 PM
348-KCurrent Report0000943374-26-000217May 28, 2026 9:00 PM
354Insider Transaction0001437749-26-017772May 19, 2026 7:07 PM
364Insider Transaction0001437749-26-017758May 19, 2026 6:27 PM
374Insider Transaction0001437749-26-017757May 19, 2026 6:26 PM
384Insider Transaction0001437749-26-017756May 19, 2026 6:25 PM
3910-QQuarterly & Annual Report0001104659-26-059789May 13, 2026 11:30 AM
404Insider Transaction0001437749-26-015120May 6, 2026 4:40 PM
418-KCurrent Report0000943374-26-000167Apr 24, 2026 1:01 PM
42DEF 14AOthers0001104659-26-048151Apr 24, 2026 12:00 PM
434Insider Transaction0001437749-26-009249Mar 20, 2026 8:31 PM
444Insider Transaction0001437749-26-008886Mar 18, 2026 9:27 PM
454Insider Transaction0001437749-26-005338Feb 24, 2026 9:10 PM
46SCHEDULE 13GBeneficial Ownership Report0001109448-26-000046Feb 17, 2026 9:10 PM
4710-QQuarterly & Annual Report0001104659-26-013033Feb 11, 2026 12:30 PM
484Insider Transaction0001437749-25-036788Dec 3, 2025 8:58 PM
494Insider Transaction0001437749-25-036787Dec 3, 2025 8:56 PM
504Insider Transaction0001437749-25-036786Dec 3, 2025 8:54 PM
...

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