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United Therapeutics (UTHR) counsel sells 8,300 shares via 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

UNITED THERAPEUTICS Corp executive vice president and general counsel Paul A. Mahon reported an exercise-and-sell transaction in company stock. He exercised stock options covering 8,300 shares of common stock at $146.03 per share and, on the same date, sold 8,300 shares in a series of open-market trades at prices generally around $543–$549 per share. The activity was carried out under a pre-arranged Rule 10b5-1 trading plan that Mahon entered into on August 11, 2025. Following these transactions, he directly holds 45,172 shares of UNITED THERAPEUTICS common stock.

Positive

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Insider MAHON PAUL A
Role EVP & GENERAL COUNSEL
Sold 8,300 shs ($4.54M)
Type Security Shares Price Value
Exercise Stock Option 8,300 $0.00 --
Exercise Common Stock 8,300 $146.03 $1.21M
Sale Common Stock 200 $539.76 $108K
Sale Common Stock 840 $543.8893 $457K
Sale Common Stock 374 $545.2671 $204K
Sale Common Stock 2,627 $546.4178 $1.44M
Sale Common Stock 935 $547.1108 $512K
Sale Common Stock 1,481 $548.425 $812K
Sale Common Stock 593 $549.4948 $326K
Sale Common Stock 1,250 $549.47 $687K
Holdings After Transaction: Stock Option — 105,640 shares (Direct, null); Common Stock — 53,472 shares (Direct, null)
Footnotes (1)
  1. This is an exercise of stock options and sale of the resulting shares pursuant to a pre-arranged 10b5-1 plan entered into by the reporting person on August 11, 2025. This transaction was executed in multiple trades at prices ranging from $543.59 to $544.03. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $544.795 to $545.77. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $545.80 to $546.72. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $546.80 to $547.75. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $547.90 to $548.88. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $549.12 to $549.80. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Shares sold 8,300 shares Open-market sales of UNITED THERAPEUTICS common stock on June 4, 2026
Sale prices $543–$549 per share Weighted-average price ranges for grouped trades on June 4, 2026
Options exercised 8,300 shares Stock options converted into common stock on June 4, 2026
Option exercise price $146.03 per share Exercise price for 8,300-share stock option grant
Post-transaction holdings 45,172 shares Common stock directly held after reported transactions
10b5-1 plan date August 11, 2025 Date Mahon entered pre-arranged trading plan covering these trades
Option expiration March 15, 2027 Expiration date of exercised stock options
Rule 10b5-1 trading plan regulatory
"exercise of stock options and sale of the resulting shares pursuant to a pre-arranged 10b5-1 plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
open-market sale financial
"transaction_code_description: Sale in open market or private transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
stock options financial
"This is an exercise of stock options and sale of the resulting shares"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
weighted average price financial
"The price reported above reflects the weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
derivative exercise/conversion financial
"transaction_action: derivative exercise/conversion"
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
MAHON PAUL A

(Last)(First)(Middle)
C/O UNITED THERAPEUTICS CORPORATION
1000 SPRING STREET

(Street)
SILVER SPRING MARYLAND 20910

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
UNITED THERAPEUTICS Corp [ UTHR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP & GENERAL COUNSEL
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/04/2026M(1)8,300A$146.0353,472D
Common Stock06/04/2026S(1)200D$539.7653,272D
Common Stock06/04/2026S(1)840D$543.8893(2)52,432D
Common Stock06/04/2026S(1)374D$545.2671(3)52,058D
Common Stock06/04/2026S(1)2,627D$546.4178(4)49,431D
Common Stock06/04/2026S(1)935D$547.1108(5)48,496D
Common Stock06/04/2026S(1)1,481D$548.425(6)47,015D
Common Stock06/04/2026S(1)593D$549.4948(7)46,422D
Common Stock06/04/2026S(1)1,250D$549.4745,172D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option$146.0306/04/2026M(1)8,30003/15/202003/15/2027Common Stock8,300$0.00105,640D
Explanation of Responses:
1. This is an exercise of stock options and sale of the resulting shares pursuant to a pre-arranged 10b5-1 plan entered into by the reporting person on August 11, 2025.
2. This transaction was executed in multiple trades at prices ranging from $543.59 to $544.03. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
3. This transaction was executed in multiple trades at prices ranging from $544.795 to $545.77. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
4. This transaction was executed in multiple trades at prices ranging from $545.80 to $546.72. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
5. This transaction was executed in multiple trades at prices ranging from $546.80 to $547.75. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
6. This transaction was executed in multiple trades at prices ranging from $547.90 to $548.88. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
7. This transaction was executed in multiple trades at prices ranging from $549.12 to $549.80. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Remarks:
/s/ John S. Hess, Jr. under Power of Attorney06/04/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did UTHR executive Paul Mahon report in this Form 4 filing?

Paul Mahon reported exercising stock options for 8,300 UNITED THERAPEUTICS shares and selling 8,300 shares in open-market trades. The transaction reflects an exercise-and-sell pattern rather than a simple open-market purchase of new shares.

How many UNITED THERAPEUTICS (UTHR) shares did Paul Mahon sell?

Paul Mahon sold 8,300 shares of UNITED THERAPEUTICS common stock in multiple open-market trades. The reported weighted-average prices for these trades were generally around $543 to $549 per share, according to the Form 4 transaction details and related footnotes.

At what price were Paul Mahon’s UTHR stock options exercised?

Paul Mahon exercised stock options covering 8,300 UNITED THERAPEUTICS shares at an exercise price of $146.03 per share. These options related to grants exercisable from March 15, 2020 and expiring on March 15, 2027, as disclosed in the derivative transaction data.

Were Paul Mahon’s UTHR share sales under a Rule 10b5-1 plan?

Yes. The Form 4 footnotes state that the option exercise and resulting share sales were executed under a pre-arranged Rule 10b5-1 trading plan. Mahon entered into this plan on August 11, 2025, indicating the transactions were scheduled in advance.

How many UNITED THERAPEUTICS shares does Paul Mahon hold after these trades?

After the reported option exercise and share sales, Paul Mahon directly owns 45,172 shares of UNITED THERAPEUTICS common stock. This post-transaction holding figure appears in the non-derivative transaction table of the Form 4 filing.

What is the significance of the multiple price ranges in Mahon’s UTHR trades?

Several sales were executed in multiple trades within specified price ranges, such as $543.59 to $544.03 per share. The Form 4 reports a weighted-average price for each group and notes Mahon can provide detailed trade breakdowns to regulators or shareholders upon request.