MAHON PAUL A (EVP & GENERAL COUNSEL) sold 15.5% of their position (8.30K shares) of UNITED THERAPEUTICS CORP on the open market

Open‑market sale worth $4.34M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 9 sales

MAHON PAUL A

Filed: 8/21/2026ACC: 0001231589-26-000018

InsiderMAHON PAUL ACIK 1231589

→

IssuerUNITED THERAPEUTICS CORPCIK 1082554

Officer· EVP & GENERAL COUNSEL

Since Mar 2026

-8.30K

Net shares

Net seller

$4.34M

Total sold

Open market trades

0B · 9S

Total transactions

8.30K acquired · 16.60K disposed

Non-Derivative Transactions11

Common Stock

Direct

M · Option Exercise

+2.69K

Price / share

$146.03

Trade value

$392.82K

% of position

6.0%

8/20/2026

45.17K→47.86K

Common Stock

Direct

M · Option Exercise

+5.61K

Price / share

$146.03

Trade value

$819.23K

% of position

11.7%

8/20/2026

47.86K→53.47K

Common Stock

Direct

S · Sale

−2.69K

Price / share

$524.15

Trade value

$1.41M

% of position

5.0%

8/20/2026

53.47K→50.78K

Common Stock

Direct

S · Sale

−502.00

Price / share

$520.03

Trade value

$261.06K

% of position

1.0%

8/20/2026

50.78K→50.28K

Common Stock

Direct

S · Sale

−1.82K

Price / share

$521.04

Trade value

$947.77K

% of position

3.6%

8/20/2026

50.28K→48.46K

Common Stock

Direct

S · Sale

−787.00

Price / share

$522.00

Trade value

$410.82K

% of position

1.6%

8/20/2026

48.46K→47.67K

Common Stock

Direct

S · Sale

−850.00

Price / share

$522.78

Trade value

$444.37K

% of position

1.8%

8/20/2026

47.67K→46.82K

Common Stock

Direct

S · Sale

−192.00

Price / share

$523.69

Trade value

$100.55K

% of position

0.4%

8/20/2026

46.82K→46.63K

Common Stock

Direct

S · Sale

−940.00

Price / share

$525.25

Trade value

$493.74K

% of position

2.0%

8/20/2026

46.63K→45.69K

Common Stock

Direct

S · Sale

−400.00

Price / share

$526.38

Trade value

$210.55K

% of position

0.9%

8/20/2026

45.69K→45.29K

Common Stock

Direct

S · Sale

−120.00

Price / share

$527.21

Trade value

$63.27K

% of position

0.3%

8/20/2026

45.29K→45.17K

Total

Net shares

+0.00

Net value

-$3.13M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	8/20/2026	M · Option Exercise	+2.69K	$146.03	$392.82K	6.0%	45.17K	47.86K
Common Stock Direct	8/20/2026	M · Option Exercise	+5.61K	$146.03	$819.23K	11.7%	47.86K	53.47K
Common Stock Direct	8/20/2026	S · Sale	−2.69K	$524.15	$1.41M	5.0%	53.47K	50.78K
Common Stock Direct	8/20/2026	S · Sale	−502.00	$520.03	$261.06K	1.0%	50.78K	50.28K
Common Stock Direct	8/20/2026	S · Sale	−1.82K	$521.04	$947.77K	3.6%	50.28K	48.46K
Common Stock Direct	8/20/2026	S · Sale	−787.00	$522.00	$410.82K	1.6%	48.46K	47.67K
Common Stock Direct	8/20/2026	S · Sale	−850.00	$522.78	$444.37K	1.8%	47.67K	46.82K
Common Stock Direct	8/20/2026	S · Sale	−192.00	$523.69	$100.55K	0.4%	46.82K	46.63K
Common Stock Direct	8/20/2026	S · Sale	−940.00	$525.25	$493.74K	2.0%	46.63K	45.69K
Common Stock Direct	8/20/2026	S · Sale	−400.00	$526.38	$210.55K	0.9%	45.69K	45.29K
Common Stock Direct	8/20/2026	S · Sale	−120.00	$527.21	$63.27K	0.3%	45.29K	45.17K
Total			+0.00		-$3.13M

Derivative Transactions2

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

2.69K shares

−2.69K

Strike price

146.03

Held after

0.00

Exercisable

—

8/20/2026

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

5.61K shares

−5.61K

Strike price

146.03

Held after

64.14K

Exercisable

—

8/20/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock2.69K shares	8/20/2026	M · Option Exercise	−2.69K	146.03	—	0.00
Stock Option Direct	Common Stock5.61K shares	8/20/2026	M · Option Exercise	−5.61K	146.03	—	64.14K