Paul Mahon to Sell 8,300 UTHR Shares

Paul Mahon reported intended sales of 8,300 shares via a stock option exercise to be effected on 07/02/2026 for cash.

Accepted by SEC EDGAR 07/02/2026 - 04:13 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Paul Mahon reported intended sales of 8,300 shares via a stock option exercise to be effected on 07/02/2026 for cash. The filing also lists multiple sales of 8,300 shares each on 04/16/2026, 05/07/2026, 05/21/2026, 06/04/2026, and 06/18/2026 with associated proceeds shown in dollars.

Key Figures

Planned shares to be sold: 8,300 shares Prior sale on 06/18/2026: 8,300 shares Prior sale on 04/16/2026: 8,300 shares +1 more

4 metrics

Planned shares to be sold 8,300 shares Stock option exercise on <date>07/02/2026</date>

Prior sale on 06/18/2026 8,300 shares Proceeds reported as $4,494,840.93 on <date>06/18/2026</date>

Prior sale on 04/16/2026 8,300 shares Proceeds reported as $4,787,596.87 on <date>04/16/2026</date>

Total listed prior transactions 5 transactions Dates from <date>04/16/2026</date> to <date>06/18/2026</date>

Key Terms

Form 144, Stock Option Exercise, Issuer

3 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Option Exercise financial

"Common | 07/02/2026 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Issuer regulatory

"Stock Option Exercise | Issuer | 8300 | 07/02/2026 | Cash"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the UTHR Form 144 filing say about shares to be sold?

The filing states 8,300 shares are planned to be sold through a stock option exercise on 07/02/2026. It lists the sale method as cash and identifies the transaction as an issuer-directed exercise and sale.

Who is the reporting person in the UTHR Form 144 and what transactions are shown?

The reporting person is Paul Mahon. The filing lists multiple recent dispositions of 8,300 shares on dates from 04/16/2026 through 06/18/2026, and an additional planned sale of 8,300 shares on 07/02/2026.

Are proceeds from prior sales disclosed in the UTHR Form 144?

Yes; individual dollar proceeds are shown next to each prior sale (for example, $4,784,596.87 on 04/16/2026 and $4,494,840.93 on 06/18/2026). Each listed sale includes its reported cash proceeds.

What sale method is indicated for the listed transaction in the Form 144?

The planned transaction on 07/02/2026 is described as a Stock Option Exercise with the sale method labeled as Cash. The filing identifies the transaction party as Issuer in the securities-to-be-sold line.

Does the Form 144 file indicate remaining holdings after these transactions?

The excerpt does not provide a post-transaction holdings total. The filing lists the planned sale and prior sales with dates and proceeds, but it does not state a combined or post-sale shareholding figure in the provided text.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001231589
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	UNITED THERAPEUTICS CORPORATION
SEC File Number	000-26301
Address of Issuer	1000 SPRING STREET SILVER SPRING MARYLAND 20910
Phone	(301) 608-9292
Name of Person for Whose Account the Securities are To Be Sold	PAUL MAHON
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	8300	4586274.56	42446733	07/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/02/2026	Stock Option Exercise	Issuer			8300	07/02/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
PAUL MAHON 1000 SPRING STREET SILVER SPRING MD 20910	Common	06/18/2026	8300	4494840.93
PAUL MAHON 1000 SPRING STREET SILVER SPRING MD 20910	Common	06/04/2026	8300	4540642.45
PAUL MAHON 1000 SPRING STREET SILVER SPRING MD 20910	Common	05/21/2026	8300	4671398.80
PAUL MAHON 1000 SPRING STREET SILVER SPRING MD 20910	Common	05/07/2026	8300	4870054.05
PAUL MAHON 1000 SPRING STREET SILVER SPRING MD 20910	Common	04/16/2026	8300	4787596.87

144: Remarks and Signature

Remarks
Date of Notice	07/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/11/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Paul A. Mahon
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)