MBBC · Marathon Bancorp Inc. Common Stock
View on chartInsiders & Stakes
| Nicholas W. Zillges President and CEO | ▼ Sell | Tax Withholding | 55,936 Shares held | 6/28/2026 | View profile |
| Amy Zientara Chairwoman of the Board | ▲ Buy | Grant | 27,110 Shares held | 6/15/2026 | View profile |
| Nora Spatz EVP and CAO | ▼ Sell | Tax Withholding | 27,096 Shares held | 6/28/2026 | View profile |
| Michelle Knopf SVP | ▼ Sell | Tax Withholding | 8,557 Shares held | 6/28/2026 | View profile |
| Ann M. Werth Director | ▲ Buy | Grant | 8,501 Shares held | 6/15/2026 | View profile |
| Terwilliger Thomas Director | ▲ Buy | Grant | 7,185 Shares held | 6/28/2022 | View profile |
| Timothy R. Wimmer Director | ▲ Buy | Grant | 6,384 Shares held | 6/15/2026 | View profile |
| Thomas L. Grimm Director | ▲ Buy | Grant | 6,384 Shares held | 6/15/2026 | View profile |
| Terry Cornish VP and CCO | ▼ Sell | Tax Withholding | 6,256 Shares held | 6/28/2026 | View profile |
| Joy Selting-Buchberger SVP and CFO | ▼ Sell | Tax Withholding | 4,760 Shares held | 6/28/2026 | View profile |
Transaction History
| Terry Cornish | ▼ Sell | Tax Withholding | 247 | $4K | 6/28/2026 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 225 | $3K | 6/28/2026 |
| Nicholas W. Zillges | ▼ Sell | Tax Withholding | 1,269 | $20K | 6/28/2026 |
| Nora Spatz | ▼ Sell | Tax Withholding | 503 | $8K | 6/28/2026 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 522 | $8K | 6/28/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 970 | $15K | 6/16/2026 |
| Ann M. Werth | ▲ Buy | Grant | 3,386 | $0 | 6/15/2026 |
| Timothy R. Wimmer | ▲ Buy | Grant | 3,386 | $0 | 6/15/2026 |
| Thomas L. Grimm | ▲ Buy | Grant | 3,386 | $0 | 6/15/2026 |
| Amy Zientara | ▲ Buy | Grant | 3,386 | $0 | 6/15/2026 |
| Terry Cornish | ▲ Buy | Grant | 3,500 | $0 | 6/15/2026 |
| Michelle Knopf | ▲ Buy | Grant | 5,450 | $0 | 6/15/2026 |
| Nicholas W. Zillges | ▲ Buy | Grant | 16,934 | $0 | 6/15/2026 |
| Nora Spatz | ▲ Buy | Grant | 6,450 | $0 | 6/15/2026 |
| Terry Cornish | ▲ Buy | Open Market | 219 | $3K | 6/10/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 164 | $2K | 6/10/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 170 | $3K | 6/10/2026 |
| Nora Spatz | ▲ Buy | Open Market | 602 | $9K | 6/10/2026 |
| Terry Cornish | ▲ Buy | Open Market | 693 | $10K | 6/9/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 519 | $8K | 6/9/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 537 | $8K | 6/9/2026 |
| Nora Spatz | ▲ Buy | Open Market | 1,904 | $28K | 6/9/2026 |
| Terry Cornish | ▲ Buy | Open Market | 71 | $1K | 6/8/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 54 | $769 | 6/8/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 55 | $783 | 6/8/2026 |
| Nora Spatz | ▲ Buy | Open Market | 197 | $3K | 6/8/2026 |
| Terry Cornish | ▲ Buy | Open Market | 116 | $2K | 6/5/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 87 | $1K | 6/5/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 90 | $1K | 6/5/2026 |
| Nora Spatz | ▲ Buy | Open Market | 320 | $5K | 6/5/2026 |
| Terry Cornish | ▲ Buy | Open Market | 27 | $372 | 6/4/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 20 | $275 | 6/4/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 21 | $289 | 6/4/2026 |
| Nora Spatz | ▲ Buy | Open Market | 74 | $1K | 6/4/2026 |
| Terry Cornish | ▲ Buy | Open Market | 263 | $4K | 6/3/2026 |
| Michelle Knopf | ▲ Buy | Open Market | 197 | $3K | 6/3/2026 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 203 | $3K | 6/3/2026 |
| Nora Spatz | ▲ Buy | Open Market | 722 | $10K | 6/3/2026 |
| Amy Zientara | ▲ Buy | Option Exercise | 3,599 | $29K | 6/3/2026 |
| Amy Zientara | ▲ Buy | Option Exercise | 899 | $6K | 6/3/2026 |
| Nora Spatz | ▲ Buy | Option Exercise | 1,200 | $10K | 6/3/2026 |
| Nicholas W. Zillges | ▲ Buy | Option Exercise | 1,500 | $10K | 6/3/2026 |
| Thomas L. Grimm | ▲ Buy | Option Exercise | 300 | $2K | 6/3/2026 |
| Timothy R. Wimmer | ▲ Buy | Option Exercise | 3,599 | $29K | 6/3/2026 |
| Timothy R. Wimmer | ▲ Buy | Option Exercise | 899 | $6K | 6/3/2026 |
| Nora Spatz | ▼ Sell | Tax Withholding | 30 | $435 | 5/16/2026 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 86 | $1K | 5/16/2026 |
| Terry Cornish | ▼ Sell | Tax Withholding | 41 | $595 | 5/16/2026 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 56 | $812 | 5/16/2026 |
| Ann M. Werth | ▲ Buy | Option Exercise | 899 | $7K | 5/5/2026 |
| Ann M. Werth | ▲ Buy | Option Exercise | 599 | $4K | 5/5/2026 |
| Thomas L. Grimm | ▲ Buy | Option Exercise | 3,599 | $29K | 3/20/2026 |
| Thomas L. Grimm | ▲ Buy | Option Exercise | 599 | $4K | 3/20/2026 |
| Nora Spatz | ▲ Buy | Option Exercise | 2,399 | $20K | 3/18/2026 |
| Nora Spatz | ▲ Buy | Option Exercise | 1,921 | $12K | 3/18/2026 |
| Nicholas W. Zillges | ▲ Buy | Option Exercise | 2,998 | $19K | 2/23/2026 |
| Michelle Knopf | ▼ Sell | Other | 536 | $6K | 12/2/2025 |
| Michelle Knopf | ▼ Sell | Other | 20 | $226 | 12/2/2025 |
| Nora Spatz | ▼ Sell | Other | 1,220 | $14K | 12/2/2025 |
| Nora Spatz | ▼ Sell | Other | 45 | $509 | 12/2/2025 |
| Nicholas W. Zillges | ▼ Sell | Other | 634 | $7K | 12/2/2025 |
| Nicholas W. Zillges | ▼ Sell | Other | 24 | $271 | 12/2/2025 |
| Michelle Knopf | ▼ Sell | Other | 1,393 | $16K | 12/1/2025 |
| Nora Spatz | ▼ Sell | Other | 3,166 | $36K | 12/1/2025 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,646 | $19K | 12/1/2025 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 1,075 | $12K | 11/26/2025 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 1,325 | $15K | 11/13/2025 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 517 | $5K | 6/28/2025 |
| Terry Cornish | ▼ Sell | Tax Withholding | 225 | $2K | 6/28/2025 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 197 | $2K | 6/28/2025 |
| Nora Spatz | ▼ Sell | Tax Withholding | 451 | $5K | 6/28/2025 |
| Nicholas W. Zillges | ▼ Sell | Tax Withholding | 1,196 | $12K | 6/28/2025 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 500 | $5K | 6/13/2025 |
| Nicholas W. Zillges | ▼ Sell | Other | 695 | $7K | 5/29/2025 |
| Nora Spatz | ▼ Sell | Other | 992 | $10K | 5/29/2025 |
| Terry Cornish | ▼ Sell | Tax Withholding | 38 | $381 | 5/16/2025 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 70 | $702 | 5/16/2025 |
| Nora Spatz | ▼ Sell | Tax Withholding | 29 | $291 | 5/16/2025 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 44 | $441 | 5/16/2025 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 500 | $5K | 5/16/2025 |
| Amy Zientara | ▲ Buy | Grant | 2,500 | $25K | 4/21/2025 |
| Timothy R. Wimmer | ▲ Buy | Grant | 2,500 | $25K | 4/21/2025 |
| Ann M. Werth | ▲ Buy | Grant | 550 | $6K | 4/21/2025 |
| Thomas L. Grimm | ▲ Buy | Grant | 7,500 | $75K | 4/21/2025 |
| Terry Cornish | ▲ Buy | Grant | 2,500 | $25K | 4/21/2025 |
| Joy Selting-Buchberger | ▲ Buy | Grant | 5,000 | $50K | 4/21/2025 |
| Michelle Knopf | ▲ Buy | Grant | 3,300 | $33K | 4/21/2025 |
| Nora Spatz | ▲ Buy | Grant | 5,000 | $50K | 4/21/2025 |
| Nora Spatz | ▲ Buy | Grant | 500 | $5K | 4/21/2025 |
| Nora Spatz | ▲ Buy | Grant | 600 | $6K | 4/21/2025 |
| Nicholas W. Zillges | ▲ Buy | Grant | 6,500 | $65K | 4/21/2025 |
| Nicholas W. Zillges | ▲ Buy | Grant | 3,500 | $35K | 4/21/2025 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 127 | $1K | 6/28/2024 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 268 | $2K | 6/28/2024 |
| Nicholas W. Zillges | ▼ Sell | Tax Withholding | 823 | $7K | 6/28/2024 |
| Nora Spatz | ▼ Sell | Tax Withholding | 288 | $3K | 6/28/2024 |
| Terry Cornish | ▼ Sell | Tax Withholding | 125 | $1K | 6/28/2024 |
| Nicholas W. Zillges | ▼ Sell | Other | 200 | $2K | 5/23/2024 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,569 | $13K | 5/23/2024 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 47 | $416 | 5/16/2024 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 18 | $159 | 5/16/2024 |
| Nora Spatz | ▼ Sell | Tax Withholding | 19 | $168 | 5/16/2024 |
| Terry Cornish | ▼ Sell | Tax Withholding | 19 | $168 | 5/16/2024 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 100 | $951 | 3/6/2024 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,184 | $11K | 12/1/2023 |
| Michelle Knopf | ▼ Sell | Other | 1,534 | $15K | 12/1/2023 |
| Nora Spatz | ▼ Sell | Other | 538 | $5K | 12/1/2023 |
| Terry Cornish | ▼ Sell | Other | 269 | $3K | 12/1/2023 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,249 | $10K | 11/30/2023 |
| Michelle Knopf | ▼ Sell | Other | 1,619 | $13K | 11/30/2023 |
| Nora Spatz | ▼ Sell | Other | 568 | $5K | 11/30/2023 |
| Terry Cornish | ▼ Sell | Other | 284 | $2K | 11/30/2023 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 1,100 | $8K | 11/16/2023 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 300 | $2K | 11/16/2023 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 140 | $1K | 11/16/2023 |
| Joy Selting-Buchberger | ▼ Sell | Tax Withholding | 286 | $3K | 6/28/2023 |
| Nicholas W. Zillges | ▼ Sell | Tax Withholding | 833 | $9K | 6/28/2023 |
| Terry Cornish | ▼ Sell | Tax Withholding | 131 | $1K | 6/28/2023 |
| Michelle Knopf | ▼ Sell | Tax Withholding | 126 | $1K | 6/28/2023 |
| Nora Spatz | ▼ Sell | Tax Withholding | 306 | $3K | 6/28/2023 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,361 | $14K | 6/7/2023 |
| Michelle Knopf | ▼ Sell | Other | 6 | $62 | 6/7/2023 |
| Nora Spatz | ▼ Sell | Other | 4 | $41 | 6/7/2023 |
| Terry Cornish | ▼ Sell | Other | 1,943 | $20K | 6/7/2023 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 1,000 | $10K | 5/18/2023 |
| Nora Spatz | ▲ Buy | Open Market | 800 | $8K | 5/18/2023 |
| Joy Selting-Buchberger | ▲ Buy | Grant | 500 | $0 | 5/16/2023 |
| Terry Cornish | ▲ Buy | Grant | 500 | $0 | 5/16/2023 |
| Michelle Knopf | ▲ Buy | Grant | 500 | $0 | 5/16/2023 |
| Nora Spatz | ▲ Buy | Grant | 500 | $0 | 5/16/2023 |
| Ann M. Werth | ▲ Buy | Grant | 1,311 | $0 | 5/16/2023 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,738 | $20K | 12/2/2022 |
| Terry Cornish | ▼ Sell | Other | 1,738 | $20K | 12/2/2022 |
| Michelle Knopf | ▼ Sell | Other | 3,650 | $42K | 12/2/2022 |
| Nora Spatz | ▼ Sell | Other | 4,345 | $50K | 12/2/2022 |
| Ann M. Werth | ▲ Buy | Grant | 874 | $0 | 6/28/2022 |
| Terwilliger Thomas | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Nora Spatz | ▲ Buy | Grant | 4,370 | $0 | 6/28/2022 |
| Joy Selting-Buchberger | ▲ Buy | Grant | 4,370 | $0 | 6/28/2022 |
| Amy Zientara | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Timothy R. Wimmer | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Thomas L. Grimm | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Terry Cornish | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Michelle Knopf | ▲ Buy | Grant | 2,185 | $0 | 6/28/2022 |
| Nicholas W. Zillges | ▲ Buy | Grant | 10,924 | $0 | 6/28/2022 |
| Nicholas W. Zillges | ▼ Sell | Other | 1,016 | $11K | 5/27/2022 |
| Joy Selting-Buchberger | ▼ Sell | Other | 2,229 | $25K | 5/27/2022 |
| Nora Spatz | ▼ Sell | Other | 6 | $67 | 5/27/2022 |
| Terry Cornish | ▼ Sell | Other | 37 | $413 | 5/27/2022 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 500 | $5K | 5/17/2022 |
| Nicholas W. Zillges | ▲ Buy | Open Market | 525 | $6K | 5/17/2022 |
| Nora Spatz | ▼ Sell | Other | 452 | $5K | 12/8/2021 |
| Nicholas W. Zillges | ▼ Sell | Other | 2,532 | $27K | 12/8/2021 |
| Terry Cornish | ▼ Sell | Other | 2,714 | $29K | 12/8/2021 |