Marathon Bancorp, Inc. /MD/ (MBBC) Insider Ownership

Historic Ownership Trends

There are no significant Insider Shareholders in Marathon Bancorp as of December 31, 2025.

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Nicholas W Zillges President And Ceo 84,887 28 Nov, 2025
Nora Spatz Evp And Cao 51,360 01 Jul, 2025
Terry Cornish Svp And Cco 28,860 01 Jul, 2025
Joy Selting-Buchberger Svp And Cfo 27,126 01 Jul, 2025
Michelle Knopf Evp And Coo 21,716 01 Jul, 2025
Thomas L Grimm 19,981 29 Jun, 2022
Amy Zientara 19,226 22 Apr, 2025
Timothy R Wimmer 11,549 29 Jun, 2022
Thomas Terwilliger 7,185 29 Jun, 2022
Ann M Werth 3,617 22 Apr, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Dec, 2025 Michelle Knopf Common Stock A 1,393 $11.27 17,742 I I
01 Dec, 2025 Nora Spatz Common Stock A 3,166 $11.27 34,436 I I
01 Dec, 2025 Nicholas W Zillges Common Stock A 1,646 $11.27 49,426 I I
02 Dec, 2025 Nicholas W Zillges Common Stock A 634 $11.11 50,060 I I
02 Dec, 2025 Nora Spatz Common Stock A 1,220 $11.11 35,656 I I
02 Dec, 2025 Michelle Knopf Common Stock A 536 $11.11 18,278 I I
02 Dec, 2025 Nora Spatz Common Stock A 45 $11.30 35,701 I I
02 Dec, 2025 Michelle Knopf Common Stock A 20 $11.30 18,298 I I
02 Dec, 2025 Nicholas W Zillges Common Stock A 24 $11.30 50,084 I I
26 Nov, 2025 Nicholas W Zillges Common Stock A 1,075 $11.37 34,803 D P
13 Nov, 2025 Nicholas W Zillges Common Stock A 1,325 $11.00 33,728 D P
28 Jun, 2025 Michelle Knopf Common Stock D 197 $9.99 3,418 D F
28 Jun, 2025 Terry Cornish Common Stock D 225 $9.99 3,044 D F
28 Jun, 2025 Joy Selting-Buchberger Common Stock D 517 $9.99 5,338 D F
28 Jun, 2025 Nicholas W Zillges Common Stock D 1,196 $9.99 32,376 D F
28 Jun, 2025 Nicholas W Zillges Common Stock D 1,169 $9.99 32,403 D F
28 Jun, 2025 Nora Spatz Common Stock D 451 $9.99 15,659 D F
13 Jun, 2025 Nicholas W Zillges Common Stock A 500 $9.99 33,572 D P
29 May, 2025 Nora Spatz Common Stock A 992 $10.01 31,270 I I
29 May, 2025 Nicholas W Zillges Common Stock A 695 $10.01 47,780 I I