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Marathon Bancorp, Inc. /MD/

MBBC Net buying
CIK 0001835385 #4749 in the set updated 19 Sep 2026
Bought (12 mo)
$146.45K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
+$146.45K
+$146.45K against sales at will

By person

9 insiders · 43 transactions
4.6×

Nicholas W. Zillges holds only 4.6 times base salary in stock. $1.61M of shares against $346.50K in salary for 2025.

Salary from the company's own proxy. The shares are what Nicholas W. Zillges last reported holding, valued at $15.00, the price Common Stock was last bought or sold at on the open market here, on 16 Jun 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Zillges Nicholas W
President and CEO
$56.79K (9)
—
+$56.79K
107,096
3.63%
$1.61M
+53.7%
Spatz Nora
EVP and CAO
$54.80K (6)
—
+$54.80K
114,527
3.88%
$1.72M
+33.1%
Cornish Terry
SVP and CCO
$19.93K (6)
—
+$19.93K
33,461
1.13%
$501.92K
+25.7%
Knopf Michelle
EVP and COO
$14.94K (6)
—
+$14.94K
27,896
0.9454%
$418.44K
+66.7%
Grimm Thomas L
Director
—
—
—
28,678
0.9719%
$430.17K
+115.7%
Zientara Amy
Director
—
—
—
27,110
0.9188%
$406.65K
+62.1%
Selting-Buchberger Joy
SVP and CFO
—
—
—
26,548
0.8997%
$398.22K
+17.0%
Wimmer Timothy R
Director
—
—
—
20,246
0.6861%
$303.69K
+105.3%
Werth Ann M
Director
—
—
—
8,501
0.2881%
$127.52K
+177.2%

Individual transactions

16
Insider
Date
Role
Action
Shares
Price
Amount
Spatz Nora
18 Sep 2026
EVP and CAO
Exercised, kept
962
$6.48
$6.23K
Spatz Nora
18 Sep 2026
EVP and CAO
Exercised, kept
1,201
$8.13
$9.76K
Wimmer Timothy R
3 Jun 2026
Director
Exercised, kept indirect
899
$6.48
$5.83K
Wimmer Timothy R
3 Jun 2026
Director
Exercised, kept indirect
3,599
$8.13
$29.26K
Grimm Thomas L
3 Jun 2026
Director
Exercised, kept indirect
300
$6.48
$1.94K
Zillges Nicholas W
3 Jun 2026
President and CEO
Exercised, kept
1,500
$6.48
$9.72K
Spatz Nora
3 Jun 2026
EVP and CAO
Exercised, kept
1,200
$8.13
$9.76K
Zientara Amy
3 Jun 2026
Director
Exercised, kept
899
$6.48
$5.83K
Zientara Amy
3 Jun 2026
Director
Exercised, kept
3,599
$8.13
$29.26K
Werth Ann M
5 May 2026
Director
Exercised, kept
599
$6.48
$3.88K
Werth Ann M
5 May 2026
Director
Exercised, kept
899
$8.13
$7.31K
Grimm Thomas L
20 Mar 2026
Director
Exercised, kept indirect
599
$6.48
$3.88K
Grimm Thomas L
20 Mar 2026
Director
Exercised, kept indirect
3,599
$8.13
$29.26K
Spatz Nora
18 Mar 2026
EVP and CAO
Exercised, kept
1,921
$6.48
$12.45K
Spatz Nora
18 Mar 2026
EVP and CAO
Exercised, kept
2,399
$8.13
$19.50K
Zillges Nicholas W
23 Feb 2026
President and CEO
Exercised, kept
2,998
$6.48
$19.43K
Show all 43 transactions →

What was left out

Form 4 filings counted 37
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 84,714
History held since 27 May 2021