Marathon Bancorp, Inc. /MD/ (MBBC) insider buying and selling
There were no open-market insider purchases or sales at Marathon Bancorp, Inc. /MD/ (MBBC) in the last 90 days. Over the last 12 months, 4 insiders bought $120K of the stock, led by Nora Spatz (EVP), who bought $55K between Jun 3–10, 2026.
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Trades by the same insider within a week are shown as one line.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Nicholas W Zillges CEO | Open market purchase 7 trades | 2,046 | avg. $14.66 | $30K | |
| Nora Spatz EVP | Open market purchase 6 trades | 3,819 | avg. $14.35 | $55K | |
| Terry Cornish SVP | Open market purchase 6 trades | 1,389 | avg. $14.35 | $20K | |
| Michelle Knopf COO | Open market purchase 6 trades | 1,041 | avg. $14.35 | $15K |
What the MBBC insider trades really mean
The table above is the public summary. With an Insider Intel account you get the analysis behind it, for Marathon Bancorp, Inc. /MD/ and every other stock we track:
MBBC's AI Signal score
One score from six weighted factors, with the full breakdown behind it, so you can see whether the buying is a real signal.
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See each MBBC insider purchase and sale plotted on the chart, with the gain or loss on every one since.
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Is Nora Spatz worth following? See their grade, win rate and average return on past purchases.
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The consensus rating and price target next to the insider activity. Do the analysts agree?
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Questions about MBBC insider trading
Who bought Marathon Bancorp, Inc. /MD/ (MBBC) stock recently?
Insiders who bought Marathon Bancorp, Inc. /MD/ stock on the open market in the last 12 months: Nora Spatz ($55K), Nicholas W Zillges ($30K), Terry Cornish ($20K), Michelle Knopf ($15K). The most recent purchase was reported on Jun 16, 2026.
Are insiders buying or selling MBBC?
Over the last 12 months insiders were net buyers of MBBC on discretionary trades: $120K bought against $0 sold (scheduled and tax-related sales excluded).
What is a sell-to-cover or 10b5-1 sale?
A 10b5-1 sale is scheduled in advance under a pre-arranged plan, and a sell-to-cover sale is made to pay tax on vesting shares. Neither is a fresh decision to sell, so they say less about an insider's view than a discretionary sale.
Where does this data come from?
Officers, directors and large shareholders report their trades to the SEC on Form 4. This page lists the open-market purchases and sales by individual insiders from those public filings; funds and other institutions are not shown.
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How to read this page
Officers, directors and large shareholders must report their trades in company shares to the SEC on Form 4. This page lists open-market purchases and sales by individual insiders: trades made on the stock exchange at the going price. Funds and other institutions are not shown here.
Information from SEC EDGAR Form 4 filings, shown for general information only. It is not financial advice and does not recommend buying or selling any security. Trades are shown by transaction date and may be reported up to two business days later.