STOCK TITAN

United Therapeutics (UTHR) EVP & General Counsel sells 8,300 shares after option exercise

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

Rhea-AI Filing Summary

UNITED THERAPEUTICS Corp executive Paul A. Mahon exercised stock options and sold shares in a planned transaction. As EVP & General Counsel, he exercised options for 8,300 shares of common stock at an exercise price of $146.03 per share, then sold 8,300 shares in multiple open-market trades at weighted average prices around $574–$578 per share. These transactions were carried out under a pre-arranged Rule 10b5-1 trading plan entered into on August 11, 2025. After the trades, he directly owned 45,172 shares of United Therapeutics common stock.

Positive

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Negative

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Insider MAHON PAUL A
Role EVP & GENERAL COUNSEL
Sold 8,300 shs ($4.79M)
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 $574.034 $115K
Sale Common Stock 1,640 $575.3692 $944K
Sale Common Stock 1,800 $576.3848 $1.04M
Sale Common Stock 3,366 $577.388 $1.94M
Sale Common Stock 1,294 $578.2099 $748K
Holdings After Transaction: Stock Option — 8,600 shares (Direct); Common Stock — 53,472 shares (Direct)
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 $573.865 to $574.83. 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 $574.95 to $575.85. 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 $575.97 to $576.92. 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 $577.00 to $577.95. 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 $578.00 to $578.53. 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.
Options exercised 8,300 shares Stock options converted into common stock on April 16, 2026 at $146.03 exercise price
Exercise price $146.03 per share Strike price for 8,300 stock options exercised into United Therapeutics common stock
Shares sold 8,300 shares Total United Therapeutics common shares sold in multiple open-market trades on April 16, 2026
Sale prices $574.03–$578.21 per share Approximate range of weighted average sale prices across reported open-market transactions
Post-transaction holdings 45,172 shares United Therapeutics common shares directly owned by Paul A. Mahon after the transactions
Rule 10b5-1 plan regulatory
"exercise of stock options and sale of the resulting shares pursuant to a pre-arranged 10b5-1 plan"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Stock Option financial
"security_title": "Stock Option""
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
open-market sale financial
"transaction_action": "open-market sale""
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.
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 security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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)
04/16/2026
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 Stock04/16/2026M(1)8,300A$146.0353,472D
Common Stock04/16/2026S(1)200D$574.034(2)53,272D
Common Stock04/16/2026S(1)1,640D$575.3692(3)51,632D
Common Stock04/16/2026S(1)1,800D$576.3848(4)49,832D
Common Stock04/16/2026S(1)3,366D$577.388(5)46,466D
Common Stock04/16/2026S(1)1,294D$578.2099(6)45,172D
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$146.0304/16/2026M(1)8,30003/15/202003/15/2027Common Stock8,300$0.008,600D
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 $573.865 to $574.83. 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 $574.95 to $575.85. 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 $575.97 to $576.92. 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 $577.00 to $577.95. 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 $578.00 to $578.53. 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 Attorney04/16/2026
** 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 A. Mahon report in this Form 4 filing?

Paul A. Mahon reported an option exercise and related share sales. He exercised stock options for 8,300 United Therapeutics shares at $146.03 each and then sold 8,300 shares in multiple open-market trades, all under a pre-arranged Rule 10b5-1 trading plan.

How many United Therapeutics (UTHR) shares did Paul A. Mahon sell and at what prices?

He sold 8,300 United Therapeutics common shares in total. The sales occurred in several open-market transactions at weighted average prices ranging from about $574.03 to $578.21 per share, with detailed price ranges noted for each trade in the disclosure.

What stock options did Paul A. Mahon exercise in United Therapeutics (UTHR)?

He exercised options covering 8,300 United Therapeutics shares. These options had an exercise price of $146.03 per share and were originally granted as stock options exercisable into common stock, with the full 8,300 underlying shares converted in this transaction.

How many United Therapeutics (UTHR) shares does Paul A. Mahon own after these transactions?

After the reported trades, Mahon directly owns 45,172 shares. The Form 4 shows his direct ownership of United Therapeutics common stock decreased from higher levels as he sold 8,300 shares following the option exercise, leaving 45,172 shares held directly.

Were Paul A. Mahon’s United Therapeutics (UTHR) share sales under a Rule 10b5-1 plan?

Yes, the option exercise and resulting share sales used a Rule 10b5-1 plan. The footnote explains they were executed under a pre-arranged 10b5-1 trading plan that Mahon entered into on August 11, 2025, indicating the timing was pre-scheduled.

Were Paul A. Mahon’s United Therapeutics (UTHR) sales open-market transactions?

Yes, the filing describes the sales as open-market transactions. Each sale is coded with “S” for sale and labeled as a sale in the open market or private transaction, with weighted average prices reported and detailed intraday price ranges available upon request.