MAHON PAUL A (EVP & GENERAL COUNSEL) sold 18.4% of their position (8.30K shares) of UNITED THERAPEUTICS CORP on the open market

Open‑market sale worth $4.01M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 9 sales

MAHON PAUL A

Filed: 3/5/2026ACC: 0001231589-26-000006

InsiderMAHON PAUL ACIK 1231589

→

IssuerUNITED THERAPEUTICS CORPCIK 1082554

Officer· EVP & GENERAL COUNSEL

Since Mar 2026

-8.30K

Net shares

Net seller

$4.01M

Total sold

Open market trades

0B · 9S

Total transactions

8.30K acquired · 16.60K disposed

Non-Derivative Transactions10

Common Stock

Direct

M · Option Exercise

+8.30K

Price / share

$146.03

Trade value

$1.21M

% of position

22.5%

3/5/2026

36.84K→45.14K

Common Stock

Direct

S · Sale

−368.00

Price / share

$479.43

Trade value

$176.43K

% of position

0.8%

3/5/2026

45.14K→44.78K

Common Stock

Direct

S · Sale

−1.60K

Price / share

$480.22

Trade value

$769.31K

% of position

3.6%

3/5/2026

44.78K→43.17K

Common Stock

Direct

S · Sale

−720.00

Price / share

$481.33

Trade value

$346.56K

% of position

1.7%

3/5/2026

43.17K→42.45K

Common Stock

Direct

S · Sale

−1.18K

Price / share

$482.68

Trade value

$568.11K

% of position

2.8%

3/5/2026

42.45K→41.28K

Common Stock

Direct

S · Sale

−1.09K

Price / share

$483.54

Trade value

$525.12K

% of position

2.6%

3/5/2026

41.28K→40.19K

Common Stock

Direct

S · Sale

−1.40K

Price / share

$484.55

Trade value

$677.40K

% of position

3.5%

3/5/2026

40.19K→38.79K

Common Stock

Direct

S · Sale

−1.01K

Price / share

$485.32

Trade value

$488.24K

% of position

2.6%

3/5/2026

38.79K→37.79K

Common Stock

Direct

S · Sale

−743.00

Price / share

$486.52

Trade value

$361.48K

% of position

2.0%

3/5/2026

37.79K→37.04K

Common Stock

Direct

S · Sale

−200.00

Price / share

$487.65

Trade value

$97.53K

% of position

0.5%

3/5/2026

37.04K→36.84K

Total

Net shares

+0.00

Net value

-$2.80M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	3/5/2026	M · Option Exercise	+8.30K	$146.03	$1.21M	22.5%	36.84K	45.14K
Common Stock Direct	3/5/2026	S · Sale	−368.00	$479.43	$176.43K	0.8%	45.14K	44.78K
Common Stock Direct	3/5/2026	S · Sale	−1.60K	$480.22	$769.31K	3.6%	44.78K	43.17K
Common Stock Direct	3/5/2026	S · Sale	−720.00	$481.33	$346.56K	1.7%	43.17K	42.45K
Common Stock Direct	3/5/2026	S · Sale	−1.18K	$482.68	$568.11K	2.8%	42.45K	41.28K
Common Stock Direct	3/5/2026	S · Sale	−1.09K	$483.54	$525.12K	2.6%	41.28K	40.19K
Common Stock Direct	3/5/2026	S · Sale	−1.40K	$484.55	$677.40K	3.5%	40.19K	38.79K
Common Stock Direct	3/5/2026	S · Sale	−1.01K	$485.32	$488.24K	2.6%	38.79K	37.79K
Common Stock Direct	3/5/2026	S · Sale	−743.00	$486.52	$361.48K	2.0%	37.79K	37.04K
Common Stock Direct	3/5/2026	S · Sale	−200.00	$487.65	$97.53K	0.5%	37.04K	36.84K
Total			+0.00		-$2.80M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

8.30K shares

−8.30K

Strike price

146.03

Held after

33.50K

Exercisable

—

3/5/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock8.30K shares	3/5/2026	M · Option Exercise	−8.30K	146.03	—	33.50K