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 $4.69M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 10 sales

MAHON PAUL A

Filed: 10/1/2026ACC: 0001231589-26-000021

InsiderMAHON PAUL ACIK 1231589

→

IssuerUNITED THERAPEUTICS CORPCIK 1082554

Officer· EVP & GENERAL COUNSEL

Since Mar 2026

-8.30K

Net shares

Net seller

$4.69M

Total sold

Open market trades

0B · 10S

Total transactions

8.30K acquired · 16.60K disposed

Non-Derivative Transactions11

Common Stock

Direct

M · Option Exercise

+8.30K

Price / share

$146.03

Trade value

$1.21M

% of position

18.4%

10/1/2026

45.17K→53.47K

Common Stock

Direct

S · Sale

−880.00

Price / share

$558.30

Trade value

$491.31K

% of position

1.6%

10/1/2026

53.47K→52.59K

Common Stock

Direct

S · Sale

−1.48K

Price / share

$560.19

Trade value

$829.08K

% of position

2.8%

10/1/2026

52.59K→51.11K

Common Stock

Direct

S · Sale

−780.00

Price / share

$561.87

Trade value

$438.26K

% of position

1.5%

10/1/2026

51.11K→50.33K

Common Stock

Direct

S · Sale

−1.48K

Price / share

$563.09

Trade value

$833.37K

% of position

2.9%

10/1/2026

50.33K→48.85K

Common Stock

Direct

S · Sale

−400.00

Price / share

$566.41

Trade value

$226.56K

% of position

0.8%

10/1/2026

48.85K→48.45K

Common Stock

Direct

S · Sale

−720.00

Price / share

$567.76

Trade value

$408.79K

% of position

1.5%

10/1/2026

48.45K→47.73K

Common Stock

Direct

S · Sale

−739.00

Price / share

$569.15

Trade value

$420.60K

% of position

1.5%

10/1/2026

47.73K→46.99K

Common Stock

Direct

S · Sale

−838.00

Price / share

$570.90

Trade value

$478.41K

% of position

1.8%

10/1/2026

46.99K→46.16K

Common Stock

Direct

S · Sale

−823.00

Price / share

$572.25

Trade value

$470.96K

% of position

1.8%

10/1/2026

46.16K→45.33K

Common Stock

Direct

S · Sale

−160.00

Price / share

$573.15

Trade value

$91.70K

% of position

0.4%

10/1/2026

45.33K→45.17K

Total

Net shares

+0.00

Net value

-$3.48M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	10/1/2026	M · Option Exercise	+8.30K	$146.03	$1.21M	18.4%	45.17K	53.47K
Common Stock Direct	10/1/2026	S · Sale	−880.00	$558.30	$491.31K	1.6%	53.47K	52.59K
Common Stock Direct	10/1/2026	S · Sale	−1.48K	$560.19	$829.08K	2.8%	52.59K	51.11K
Common Stock Direct	10/1/2026	S · Sale	−780.00	$561.87	$438.26K	1.5%	51.11K	50.33K
Common Stock Direct	10/1/2026	S · Sale	−1.48K	$563.09	$833.37K	2.9%	50.33K	48.85K
Common Stock Direct	10/1/2026	S · Sale	−400.00	$566.41	$226.56K	0.8%	48.85K	48.45K
Common Stock Direct	10/1/2026	S · Sale	−720.00	$567.76	$408.79K	1.5%	48.45K	47.73K
Common Stock Direct	10/1/2026	S · Sale	−739.00	$569.15	$420.60K	1.5%	47.73K	46.99K
Common Stock Direct	10/1/2026	S · Sale	−838.00	$570.90	$478.41K	1.8%	46.99K	46.16K
Common Stock Direct	10/1/2026	S · Sale	−823.00	$572.25	$470.96K	1.8%	46.16K	45.33K
Common Stock Direct	10/1/2026	S · Sale	−160.00	$573.15	$91.70K	0.4%	45.33K	45.17K
Total			+0.00		-$3.48M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

8.30K shares

−8.30K

Strike price

146.03

Held after

39.24K

Exercisable

—

10/1/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock8.30K shares	10/1/2026	M · Option Exercise	−8.30K	146.03	—	39.24K