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 $4.00M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 11 sales

MAHON PAUL A

Filed: 9/3/2026ACC: 0001231589-26-000019

InsiderMAHON PAUL ACIK 1231589

→

IssuerUNITED THERAPEUTICS CORPCIK 1082554

Officer· EVP & GENERAL COUNSEL

Since Mar 2026

-8.30K

Net shares

Net seller

$4.00M

Total sold

Open market trades

0B · 11S

Total transactions

8.30K acquired · 16.60K disposed

Non-Derivative Transactions12

Common Stock

Direct

M · Option Exercise

+8.30K

Price / share

$146.03

Trade value

$1.21M

% of position

18.4%

9/3/2026

45.17K→53.47K

Common Stock

Direct

S · Sale

−1.54K

Price / share

$478.93

Trade value

$739.95K

% of position

2.9%

9/3/2026

53.47K→51.93K

Common Stock

Direct

S · Sale

−936.00

Price / share

$479.66

Trade value

$448.96K

% of position

1.8%

9/3/2026

51.93K→50.99K

Common Stock

Direct

S · Sale

−2.36K

Price / share

$480.86

Trade value

$1.13M

% of position

4.6%

9/3/2026

50.99K→48.63K

Common Stock

Direct

S · Sale

−1.05K

Price / share

$481.92

Trade value

$505.05K

% of position

2.2%

9/3/2026

48.63K→47.58K

Common Stock

Direct

S · Sale

−160.00

Price / share

$482.66

Trade value

$77.23K

% of position

0.3%

9/3/2026

47.58K→47.42K

Common Stock

Direct

S · Sale

−200.00

Price / share

$483.85

Trade value

$96.77K

% of position

0.4%

9/3/2026

47.42K→47.22K

Common Stock

Direct

S · Sale

−954.00

Price / share

$485.12

Trade value

$462.81K

% of position

2.0%

9/3/2026

47.22K→46.27K

Common Stock

Direct

S · Sale

−598.00

Price / share

$486.47

Trade value

$290.91K

% of position

1.3%

9/3/2026

46.27K→45.67K

Common Stock

Direct

S · Sale

−169.00

Price / share

$487.36

Trade value

$82.36K

% of position

0.4%

9/3/2026

45.67K→45.50K

Common Stock

Direct

S · Sale

−10.00

Price / share

$488.32

Trade value

$4.88K

% of position

0.0%

9/3/2026

45.50K→45.49K

Common Stock

Direct

S · Sale

−320.00

Price / share

$490.88

Trade value

$157.08K

% of position

0.7%

9/3/2026

45.49K→45.17K

Total

Net shares

+0.00

Net value

-$2.79M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	9/3/2026	M · Option Exercise	+8.30K	$146.03	$1.21M	18.4%	45.17K	53.47K
Common Stock Direct	9/3/2026	S · Sale	−1.54K	$478.93	$739.95K	2.9%	53.47K	51.93K
Common Stock Direct	9/3/2026	S · Sale	−936.00	$479.66	$448.96K	1.8%	51.93K	50.99K
Common Stock Direct	9/3/2026	S · Sale	−2.36K	$480.86	$1.13M	4.6%	50.99K	48.63K
Common Stock Direct	9/3/2026	S · Sale	−1.05K	$481.92	$505.05K	2.2%	48.63K	47.58K
Common Stock Direct	9/3/2026	S · Sale	−160.00	$482.66	$77.23K	0.3%	47.58K	47.42K
Common Stock Direct	9/3/2026	S · Sale	−200.00	$483.85	$96.77K	0.4%	47.42K	47.22K
Common Stock Direct	9/3/2026	S · Sale	−954.00	$485.12	$462.81K	2.0%	47.22K	46.27K
Common Stock Direct	9/3/2026	S · Sale	−598.00	$486.47	$290.91K	1.3%	46.27K	45.67K
Common Stock Direct	9/3/2026	S · Sale	−169.00	$487.36	$82.36K	0.4%	45.67K	45.50K
Common Stock Direct	9/3/2026	S · Sale	−10.00	$488.32	$4.88K	0.0%	45.50K	45.49K
Common Stock Direct	9/3/2026	S · Sale	−320.00	$490.88	$157.08K	0.7%	45.49K	45.17K
Total			+0.00		-$2.79M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

8.30K shares

−8.30K

Strike price

146.03

Held after

55.84K

Exercisable

—

9/3/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock8.30K shares	9/3/2026	M · Option Exercise	−8.30K	146.03	—	55.84K