KNOPF MICHELLE (SVP) purchased 5.7% of their position (1.04K shares) of MARATHON BANCORP, INC. /MD/ on the open market

Open‑market purchase worth $14.9K — a moderate purchase. The strongest form of insider conviction signal.

P · 6 purchases

KNOPF MICHELLE

Filed: 6/11/2026ACC: 0001437749-26-020348

InsiderKNOPF MICHELLECIK 1855827

→

IssuerMARATHON BANCORP, INC. /MD/CIK 1835385

Officer· SVP

Since Apr 2021

+1.04K

Net shares

Net buyer

$14.9K

Total acquired

Open market trades

6B · 0S

Total transactions

1.04K acquired

Non-Derivative Transactions6

Common Stock

Indirect

P · Purchase

+197.00

Price / share

$13.75

Trade value

$2.71K

% of position

1.1%

6/3/2026

18.30K→18.50K

Common Stock

Indirect

P · Purchase

+20.00

Price / share

$13.77

Trade value

$275.36

% of position

0.1%

6/4/2026

18.50K→18.52K

Common Stock

Indirect

P · Purchase

+87.00

Price / share

$14.25

Trade value

$1.24K

% of position

0.5%

6/5/2026

18.52K→18.60K

Common Stock

Indirect

P · Purchase

+54.00

Price / share

$14.24

Trade value

$769.01

% of position

0.3%

6/8/2026

18.60K→18.66K

Common Stock

Indirect

P · Purchase

+519.00

Price / share

$14.50

Trade value

$7.53K

% of position

2.8%

6/9/2026

18.66K→19.18K

Common Stock

Indirect

P · Purchase

+164.00

Price / share

$14.75

Trade value

$2.42K

% of position

0.9%

6/10/2026

19.18K→19.34K

Total

Net shares

+1.04K

Net value

$14.94K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	6/3/2026	P · Purchase	+197.00	$13.75	$2.71K	1.1%	18.30K	18.50K
Common Stock Indirect	6/4/2026	P · Purchase	+20.00	$13.77	$275.36	0.1%	18.50K	18.52K
Common Stock Indirect	6/5/2026	P · Purchase	+87.00	$14.25	$1.24K	0.5%	18.52K	18.60K
Common Stock Indirect	6/8/2026	P · Purchase	+54.00	$14.24	$769.01	0.3%	18.60K	18.66K
Common Stock Indirect	6/9/2026	P · Purchase	+519.00	$14.50	$7.53K	2.8%	18.66K	19.18K
Common Stock Indirect	6/10/2026	P · Purchase	+164.00	$14.75	$2.42K	0.9%	19.18K	19.34K
Total			+1.04K		$14.94K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Direct

Shares owned3.33K

Common Stock

Indirect

Shares owned2.23K

Total

3.33K direct·2.23K indirect5.57K

Security Title	Shares Owned	Ownership Type
Common Stock	3.33K	Direct
Common Stock	2.23K	Indirect
Total	5.57K	3.33K direct·2.23K indirect

Derivative Holdings (Post-Transaction)2

Stock Options

Direct

Underlying security

Common Stock

Underlying shares

4.50K

Shares owned

4.50K

Exercise price

8.1300

Expiration

—

Exercise window

—

Stock Options

Direct

Underlying security

Common Stock

Underlying shares

4.80K

Shares owned

4.80K

Exercise price

6.4800

Expiration

—

Exercise window

—

Total

Underlying

9.30K

Owned

9.30K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Options Direct	Common Stock	8.1300	—	—	4.50K	4.50K
Stock Options Direct	Common Stock	6.4800	—	—	4.80K	4.80K
Total					9.30K	9.30K