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 $3.90M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

MAHON PAUL A

Filed: 1/15/2026ACC: 0001231589-26-000002

InsiderMAHON PAUL ACIK 1231589

→

IssuerUNITED THERAPEUTICS CORPCIK 1082554

Officer· EVP & GENERAL COUNSEL

Since Mar 2026

-8.30K

Net shares

Net seller

$3.90M

Total sold

Open market trades

0B · 6S

Total transactions

8.30K acquired · 16.60K disposed

Non-Derivative Transactions7

Common Stock

Direct

M · Option Exercise

+8.30K

Price / share

$146.03

Trade value

$1.21M

% of position

22.6%

1/15/2026

36.78K→45.08K

Common Stock

Direct

S · Sale

−1.44K

Price / share

$468.32

Trade value

$673.92K

% of position

3.2%

1/15/2026

45.08K→43.64K

Common Stock

Direct

S · Sale

−1.31K

Price / share

$470.37

Trade value

$614.77K

% of position

3.0%

1/15/2026

43.64K→42.34K

Common Stock

Direct

S · Sale

−407.00

Price / share

$472.28

Trade value

$192.22K

% of position

1.0%

1/15/2026

42.34K→41.93K

Common Stock

Direct

S · Sale

−3.53K

Price / share

$469.34

Trade value

$1.66M

% of position

8.4%

1/15/2026

41.93K→38.40K

Common Stock

Direct

S · Sale

−1.58K

Price / share

$471.44

Trade value

$742.99K

% of position

4.1%

1/15/2026

38.40K→36.82K

Common Stock

Direct

S · Sale

−40.00

Price / share

$474.74

Trade value

$18.99K

% of position

0.1%

1/15/2026

36.82K→36.78K

Total

Net shares

+0.00

Net value

-$2.69M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	1/15/2026	M · Option Exercise	+8.30K	$146.03	$1.21M	22.6%	36.78K	45.08K
Common Stock Direct	1/15/2026	S · Sale	−1.44K	$468.32	$673.92K	3.2%	45.08K	43.64K
Common Stock Direct	1/15/2026	S · Sale	−1.31K	$470.37	$614.77K	3.0%	43.64K	42.34K
Common Stock Direct	1/15/2026	S · Sale	−407.00	$472.28	$192.22K	1.0%	42.34K	41.93K
Common Stock Direct	1/15/2026	S · Sale	−3.53K	$469.34	$1.66M	8.4%	41.93K	38.40K
Common Stock Direct	1/15/2026	S · Sale	−1.58K	$471.44	$742.99K	4.1%	38.40K	36.82K
Common Stock Direct	1/15/2026	S · Sale	−40.00	$474.74	$18.99K	0.1%	36.82K	36.78K
Total			+0.00		-$2.69M

Derivative Transactions1

Stock Option

Direct

M · Option Exercise

Converts to

Common Stock

8.30K shares

−8.30K

Strike price

146.03

Held after

58.40K

Exercisable

—

1/15/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option Direct	Common Stock8.30K shares	1/15/2026	M · Option Exercise	−8.30K	146.03	—	58.40K