There have been 50 recent insider transactions recorded for Marathon Bancorp, Inc. (MBBC), including 28 buys and 22 sells. Total insider buying was valued at $506.82K and total insider selling at $86.78K.
Notable insiders with recent activity include Grimm Thomas L, Spatz Nora, Zillges Nicholas W. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — MBBC
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-20 |
Grimm Thomas L |
Director |
Option Exercise (Sell) |
- |
$6.48 |
- |
900 |
| 2026-03-18 |
Spatz Nora |
EVP and CAO |
Option Exercise (Sell) |
1,921 |
$6.48 |
$12.45K |
2,883 |
| 2026-02-23 |
Zillges Nicholas W |
President and CEO |
Option Exercise (Sell) |
2,998 |
$6.48 |
$19.43K |
4,500 |
| 2025-12-02 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
634 |
$11.11 |
$7.04K |
50,060 |
| 2025-12-02 |
Knopf Michelle |
EVP and COO |
Discretionary Buy |
536 |
$11.11 |
$5.95K |
18,278 |
| 2025-12-02 |
Spatz Nora |
EVP and CAO |
Discretionary Buy |
1,220 |
$11.11 |
$13.55K |
35,656 |
| 2025-12-01 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
1,646 |
$11.27 |
$18.55K |
49,426 |
| 2025-12-01 |
Knopf Michelle |
EVP and COO |
Discretionary Buy |
1,393 |
$11.27 |
$15.69K |
17,742 |
| 2025-12-01 |
Spatz Nora |
EVP and CAO |
Discretionary Buy |
3,166 |
$11.27 |
$35.67K |
34,436 |
| 2025-11-26 |
Zillges Nicholas W |
President and CEO |
Informative Buy |
1,075 |
$11.37 |
$12.22K |
34,803 |
| 2025-11-13 |
Zillges Nicholas W |
President and CEO |
Informative Buy |
1,325 |
$11.00 |
$14.57K |
33,728 |
| 2025-06-28 |
Zillges Nicholas W |
President and CEO |
Tax Withholding of RSU |
1,196 |
$9.99 |
$11.95K |
32,376 |
| 2025-06-28 |
Selting-buchberger Joy |
SVP and CFO |
Tax Withholding of RSU |
517 |
$9.99 |
$5.16K |
5,338 |
| 2025-06-28 |
Knopf Michelle |
EVP and COO |
Tax Withholding of RSU |
197 |
$9.99 |
$1.97K |
3,418 |
| 2025-06-28 |
Cornish Terry |
SVP and Cco |
Tax Withholding of RSU |
225 |
$9.99 |
$2.25K |
3,044 |
| 2025-06-28 |
Spatz Nora |
EVP and CAO |
Tax Withholding of RSU |
451 |
$9.99 |
$4.51K |
15,659 |
| 2025-06-28 |
Zillges Nicholas W |
President and CEO |
Tax Withholding of RSU |
1,169 |
$9.99 |
$11.68K |
32,403 |
| 2025-06-13 |
Zillges Nicholas W |
President and CEO |
Informative Buy |
500 |
$9.99 |
$5K |
33,572 |
| 2025-05-29 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
695 |
$10.01 |
$6.96K |
47,780 |
| 2025-05-29 |
Spatz Nora |
EVP and CAO |
Discretionary Buy |
992 |
$10.01 |
$9.93K |
31,270 |
| 2025-05-16 |
Zillges Nicholas W |
President and CEO |
Informative Buy |
500 |
$10.07 |
$5.03K |
33,072 |
| 2025-05-16 |
Selting-buchberger Joy |
SVP and CFO |
Tax Withholding of RSU |
44 |
$10.03 |
$441.32 |
5,855 |
| 2025-05-16 |
Knopf Michelle |
EVP and COO |
Tax Withholding of RSU |
70 |
$10.03 |
$702.10 |
3,615 |
| 2025-05-16 |
Cornish Terry |
SVP and Cco |
Tax Withholding of RSU |
38 |
$10.03 |
$381.14 |
3,269 |
| 2025-05-16 |
Spatz Nora |
EVP and CAO |
Tax Withholding of RSU |
29 |
$10.03 |
$290.87 |
16,110 |
| 2025-04-21 |
Zillges Nicholas W |
President and CEO |
RSU Award |
6,500 |
$10.00 |
$65K |
32,572 |
| 2025-04-21 |
Selting-buchberger Joy |
SVP and CFO |
RSU Award |
5,000 |
$10.00 |
$50K |
21,788 |
| 2025-04-21 |
Knopf Michelle |
EVP and COO |
RSU Award |
3,300 |
$10.00 |
$33K |
16,349 |
| 2025-04-21 |
Cornish Terry |
SVP and Cco |
RSU Award |
2,500 |
$10.00 |
$25K |
25,816 |
| 2025-04-21 |
Spatz Nora |
EVP and CAO |
RSU Award |
600 |
$10.00 |
$6K |
1,149 |
| 2025-04-21 |
Zientara Amy |
Other: Chairwoman of the Board |
RSU Award |
2,500 |
$10.00 |
$25K |
19,226 |
| 2025-04-21 |
Grimm Thomas L |
Director |
RSU Award |
7,500 |
$10.00 |
$75K |
17,796 |
| 2025-04-21 |
Wimmer Timothy R |
Director |
RSU Award |
2,500 |
$10.00 |
$25K |
9,364 |
| 2025-04-21 |
Werth Ann M |
Director |
RSU Award |
550 |
$10.00 |
$5.5K |
3,617 |
| 2024-06-28 |
Zillges Nicholas W |
President and CEO |
Tax Withholding of RSU |
823 |
$8.99 |
$7.4K |
18,993 |
| 2024-06-28 |
Selting-buchberger Joy |
SVP and CFO |
Tax Withholding of RSU |
268 |
$8.99 |
$2.41K |
4,298 |
| 2024-06-28 |
Knopf Michelle |
EVP and COO |
Tax Withholding of RSU |
127 |
$8.99 |
$1.14K |
2,685 |
| 2024-06-28 |
Cornish Terry |
SVP and Cco |
Tax Withholding of RSU |
125 |
$8.99 |
$1.12K |
2,410 |
| 2024-06-28 |
Spatz Nora |
EVP and CAO |
Tax Withholding of RSU |
288 |
$8.99 |
$2.59K |
11,757 |
| 2024-05-23 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
200 |
$8.32 |
$1.66K |
30,180 |
| 2024-05-16 |
Selting-buchberger Joy |
SVP and CFO |
Tax Withholding of RSU |
18 |
$8.85 |
$159.30 |
4,566 |
| 2024-05-16 |
Knopf Michelle |
EVP and COO |
Tax Withholding of RSU |
47 |
$8.85 |
$415.95 |
2,812 |
| 2024-05-16 |
Cornish Terry |
SVP and Cco |
Tax Withholding of RSU |
19 |
$8.85 |
$168.15 |
2,535 |
| 2024-05-16 |
Spatz Nora |
EVP and CAO |
Tax Withholding of RSU |
19 |
$8.85 |
$168.15 |
12,045 |
| 2024-03-06 |
Zillges Nicholas W |
President and CEO |
Informative Buy |
100 |
$9.51 |
$951.00 |
19,816 |
| 2023-12-01 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
1,184 |
$9.68 |
$11.46K |
29,980 |
| 2023-12-01 |
Knopf Michelle |
EVP/dir. of Mortgage Services |
Discretionary Buy |
1,534 |
$9.68 |
$14.85K |
9,509 |
| 2023-12-01 |
Cornish Terry |
SVP and Cco |
Discretionary Buy |
269 |
$9.68 |
$2.6K |
16,985 |
| 2023-12-01 |
Spatz Nora |
EVP and CAO |
Discretionary Buy |
538 |
$9.68 |
$5.21K |
18,413 |
| 2023-11-30 |
Zillges Nicholas W |
President and CEO |
Discretionary Buy |
1,249 |
$8.33 |
$10.41K |
28,796 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
