CORNISH TERRY (VP and CCO) purchased 5.4% of their position (1.39K shares) of MARATHON BANCORP, INC. /MD/ on the open market

Open‑market purchase worth $19.9K — a moderate purchase. The strongest form of insider conviction signal.

P · 6 purchases

CORNISH TERRY

Filed: 6/11/2026ACC: 0001437749-26-020350

InsiderCORNISH TERRYCIK 1855828

→

IssuerMARATHON BANCORP, INC. /MD/CIK 1835385

Officer· VP and CCO

Since Apr 2021

+1.39K

Net shares

Net buyer

$19.9K

Total acquired

Open market trades

6B · 0S

Total transactions

1.39K acquired

Non-Derivative Transactions6

Common Stock

Indirect

P · Purchase

+263.00

Price / share

$13.75

Trade value

$3.62K

% of position

1.0%

6/3/2026

25.82K→26.08K

Common Stock

Indirect

P · Purchase

+27.00

Price / share

$13.77

Trade value

$371.73

% of position

0.1%

6/4/2026

26.08K→26.11K

Common Stock

Indirect

P · Purchase

+116.00

Price / share

$14.25

Trade value

$1.65K

% of position

0.4%

6/5/2026

26.11K→26.22K

Common Stock

Indirect

P · Purchase

+71.00

Price / share

$14.24

Trade value

$1.01K

% of position

0.3%

6/8/2026

26.22K→26.29K

Common Stock

Indirect

P · Purchase

+693.00

Price / share

$14.50

Trade value

$10.05K

% of position

2.6%

6/9/2026

26.29K→26.99K

Common Stock

Indirect

P · Purchase

+219.00

Price / share

$14.75

Trade value

$3.23K

% of position

0.8%

6/10/2026

26.99K→27.20K

Total

Net shares

+1.39K

Net value

$19.93K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	6/3/2026	P · Purchase	+263.00	$13.75	$3.62K	1.0%	25.82K	26.08K
Common Stock Indirect	6/4/2026	P · Purchase	+27.00	$13.77	$371.73	0.1%	26.08K	26.11K
Common Stock Indirect	6/5/2026	P · Purchase	+116.00	$14.25	$1.65K	0.4%	26.11K	26.22K
Common Stock Indirect	6/8/2026	P · Purchase	+71.00	$14.24	$1.01K	0.3%	26.22K	26.29K
Common Stock Indirect	6/9/2026	P · Purchase	+693.00	$14.50	$10.05K	2.6%	26.29K	26.99K
Common Stock Indirect	6/10/2026	P · Purchase	+219.00	$14.75	$3.23K	0.8%	26.99K	27.20K
Total			+1.39K		$19.93K

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned2.25K

Common Stock

Direct

Shares owned3K

Total

3K direct·2.25K indirect5.25K

Security Title	Shares Owned	Ownership Type
Common Stock	2.25K	Indirect
Common Stock	3K	Direct
Total	5.25K	3K direct·2.25K 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