InsiderTrades

Form 4 for MBBC Marathon Bancorp, Inc. /MD/

Accepted 2026-06-05 12:46:04 ET · period of report 2026-06-03 · accession 0001437749-26-019698 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DI 2026-06-05 12:46 2026-06-03 MBBC Grimm Thomas L Dir M - OptEx $6.48 +300 22.3K +1% +$1,944
D 2026-06-05 12:46 2026-06-03 MBBC Grimm Thomas L Dir M - OptEx $0.00 -300 600 -33% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-06-03 M A 300 $6.48 22,294 I By Trust — —
2 Derivative Stock Options 2026-06-03 M D 300 $0.00 600 D $6.48 · 2024-05-16 to 2033-05-16 300 Common Stock (F2) Stock options vest at a rate of 20% per year commencing on May 16, 2024. (F2) Stock options vest at a rate of 20% per year commencing on May 16, 2024.