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Marathon Bancorp, Inc. (MBBC)

Marathon Bancorp, Inc. (MBBC) Insider Trading

Directors, officers and holders of more than 10% of MBBC report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 114 transactions on file: 22 with code P, 0 with code S and 28 with other codes.

DateInsiderCodeShares
Sep 18, 2026Spatz NoraM Exercise1,201
Sep 18, 2026Spatz NoraM Exercise962
Sep 18, 2026Spatz NoraM Exercise1,201
Sep 18, 2026Spatz NoraM Exercise962
Jun 16, 2026Zillges Nicholas WP Purchase970
Jun 15, 2026Knopf MichelleA Award10,000
Jun 15, 2026Cornish TerryA Award7,000
Jun 15, 2026Zillges Nicholas WA Award42,335
Jun 15, 2026Knopf MichelleA Award5,450
Jun 15, 2026Spatz NoraA Award6,450
Jun 15, 2026Spatz NoraA Award11,000
Jun 15, 2026Grimm Thomas LA Award3,386
Jun 15, 2026Zillges Nicholas WA Award16,934
Jun 15, 2026Wimmer Timothy RA Award3,386
Jun 15, 2026Zientara AmyA Award8,467
Jun 15, 2026Cornish TerryA Award3,500
Jun 15, 2026Wimmer Timothy RA Award8,467
Jun 15, 2026Werth Ann MA Award3,386
Jun 15, 2026Grimm Thomas LA Award8,467
Jun 15, 2026Werth Ann MA Award8,467
Jun 15, 2026Zientara AmyA Award3,386
Jun 10, 2026Knopf MichelleP Purchase164
Jun 10, 2026Cornish TerryP Purchase219
Jun 10, 2026Spatz NoraP Purchase602
Jun 10, 2026Zillges Nicholas WP Purchase170
Jun 9, 2026Knopf MichelleP Purchase519
Jun 9, 2026Zillges Nicholas WP Purchase537
Jun 9, 2026Spatz NoraP Purchase1,904
Jun 9, 2026Cornish TerryP Purchase693
Jun 8, 2026Zillges Nicholas WP Purchase55
Jun 8, 2026Knopf MichelleP Purchase54
Jun 8, 2026Cornish TerryP Purchase71
Jun 8, 2026Spatz NoraP Purchase197
Jun 5, 2026Zillges Nicholas WP Purchase90
Jun 5, 2026Spatz NoraP Purchase320
Jun 5, 2026Knopf MichelleP Purchase87
Jun 5, 2026Cornish TerryP Purchase116
Jun 4, 2026Spatz NoraP Purchase74
Jun 4, 2026Zillges Nicholas WP Purchase21
Jun 4, 2026Knopf MichelleP Purchase20
Jun 4, 2026Cornish TerryP Purchase27
Jun 3, 2026Grimm Thomas LM Exercise300
Jun 3, 2026Zillges Nicholas WM Exercise1,500
Jun 3, 2026Spatz NoraM Exercise1,200
Jun 3, 2026Zientara AmyM Exercise899
Jun 3, 2026Spatz NoraP Purchase722
Jun 3, 2026Zientara AmyM Exercise3,599
Jun 3, 2026Grimm Thomas LM Exercise300
Jun 3, 2026Wimmer Timothy RM Exercise3,599
Jun 3, 2026Wimmer Timothy RM Exercise899

The full Form 4 history is on the MBBC company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.