Marathon Bancorp, Inc.
AI summary Insiders accumulate company stock via 401(k) retirement accounts.
- Research score
- 51
- AI adjustment
- -12
Research score, not a recommendation.
Market data
Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.
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Why this score
Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.
Why are they buying?
AI · plan · catalyst none · documentedThe purchases reflect routine periodic contributions and accumulations within employer-sponsored 401(k) retirement accounts rather than a discretionary market-timing event.
All reported open-market purchases during the window were executed indirectly through 401(k) accounts by multiple executives simultaneously in proportional amounts.
Filing references and sources
Stock Price & Insider Purchase History
Daily close price with open-market insider purchases plotted over time
Loading price history…
| Date | Insider | Role | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| 2026-06-03 → 2026-06-10 | Spatz Nora history of Spatz Nora's purchases | Other C-suite | 3,819 | $14.35 avg | $54.8K | |
| 2026-06-03 | Spatz Nora | 722 | $13.75 | $9.9K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-04 | Spatz Nora | 74 | $13.77 | $1.0K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-05 | Spatz Nora | 320 | $14.25 | $4.6K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-08 | Spatz Nora | 197 | $14.24 | $2.8K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-09 | Spatz Nora | 1,904 | $14.50 | $27.6K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-10 | Spatz Nora | 602 | $14.75 | $8.9K | SEC filing for Spatz Nora (opens in a new tab) | |
| 2026-06-03 → 2026-06-16 | Zillges Nicholas W 6 purchases with a 63-day result · median +6.6% | CEO | 2,046 | $14.66 avg | $30.0K | |
| 2026-06-03 | Zillges Nicholas W | 203 | $13.75 | $2.8K | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-04 | Zillges Nicholas W | 21 | $13.77 | $289 | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-05 | Zillges Nicholas W | 90 | $14.25 | $1.3K | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-08 | Zillges Nicholas W | 55 | $14.24 | $783 | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-09 | Zillges Nicholas W | 537 | $14.50 | $7.8K | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-10 | Zillges Nicholas W | 170 | $14.75 | $2.5K | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-16 | Zillges Nicholas W | 970 | $15.00 | $14.6K | SEC filing for Zillges Nicholas W (opens in a new tab) | |
| 2026-06-03 → 2026-06-10 | Cornish Terry history of Cornish Terry's purchases | Other C-suite | 1,389 | $14.35 avg | $19.9K | |
| 2026-06-03 | Cornish Terry | 263 | $13.75 | $3.6K | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-04 | Cornish Terry | 27 | $13.77 | $372 | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-05 | Cornish Terry | 116 | $14.25 | $1.7K | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-08 | Cornish Terry | 71 | $14.24 | $1.0K | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-09 | Cornish Terry | 693 | $14.50 | $10.0K | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-10 | Cornish Terry | 219 | $14.75 | $3.2K | SEC filing for Cornish Terry (opens in a new tab) | |
| 2026-06-03 → 2026-06-10 | Knopf Michelle history of Knopf Michelle's purchases | COO | 1,041 | $14.35 avg | $14.9K | |
| 2026-06-03 | Knopf Michelle | 197 | $13.75 | $2.7K | SEC filing for Knopf Michelle (opens in a new tab) | |
| 2026-06-04 | Knopf Michelle | 20 | $13.77 | $275 | SEC filing for Knopf Michelle (opens in a new tab) | |
| 2026-06-05 | Knopf Michelle | 87 | $14.25 | $1.2K | SEC filing for Knopf Michelle (opens in a new tab) | |
| 2026-06-08 | Knopf Michelle | 54 | $14.24 | $769 | SEC filing for Knopf Michelle (opens in a new tab) | |
| 2026-06-09 | Knopf Michelle | 519 | $14.50 | $7.5K | SEC filing for Knopf Michelle (opens in a new tab) | |
| 2026-06-10 | Knopf Michelle | 164 | $14.75 | $2.4K | SEC filing for Knopf Michelle (opens in a new tab) | |
| Total | $119.7K | |||||
What happened next
A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.
After this run became a cluster: 21 days +1.1%63 days +7.5%126 days –