UTHR insider plans sale of 8,300 shares of stock

Accepted by SEC EDGAR 07/16/2026 - 04:17 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

UTHR shareholder Paul Mahon filed a notice of proposed sale of 8,300 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, with a reported aggregate market value of $4,429,637.79 and 42,446,733 common shares outstanding, to be sold on July 16, 2026 on NASDAQ.

The notice also lists five sales during the past three months, each for 8,300 common shares on May 7, May 21, June 4, June 18, and July 2, 2026, with reported gross proceeds ranging from $4,494,840.93 to $4,870,054.05.

Key Figures

Shares proposed for sale: 8,300 shares Aggregate market value of proposed sale: $4,429,637.79 Shares outstanding: 42,446,733 shares +2 more

5 metrics

Shares proposed for sale 8,300 shares Common shares in planned sale reported for July 16, 2026

Aggregate market value of proposed sale $4,429,637.79 Value associated with proposed sale of 8,300 common shares

Shares outstanding 42,446,733 shares Number of common shares outstanding reported in the notice

Gross proceeds on May 7, 2026 sale $4,870,054.05 Reported proceeds from sale of 8,300 common shares on May 7, 2026

Gross proceeds on July 2, 2026 sale $4,586,274.56 Reported proceeds from sale of 8,300 common shares on July 2, 2026

Key Terms

Stock Option Exercise, Securities Sold During The Past 3 Months, Executive Financial Services, Common

4 terms

Stock Option Exercise financial

"Common | 07/16/2026 | Stock Option Exercise | Issuer"

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.

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

Common financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

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

What does the UTHR Form 144 filing by Paul Mahon disclose?

The filing shows that Paul Mahon intends to sell 8,300 shares of UTHR common stock on July 16, 2026. The planned sale has a reported aggregate market value of $4,429,637.79, with Morgan Stanley Smith Barney LLC Executive Financial Services as the broker.

How many UTHR shares is Paul Mahon planning to sell in this Form 144?

Paul Mahon plans to sell 8,300 shares of UTHR common stock under this notice. The sale is reported with an aggregate market value of $4,429,637.79 and is scheduled to occur on July 16, 2026 on the NASDAQ market.

What prior UTHR stock sales by Paul Mahon are listed in the Form 144?

The filing lists five prior sales, each for 8,300 shares, on May 7, May 21, June 4, June 18, and July 2, 2026. Reported gross proceeds for these transactions range from $4,494,840.93 to $4,870,054.05.

Who is the broker handling Paul Mahon’s proposed UTHR share sale?

The proposed sale is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services. The broker’s address is listed as 1 New York Plaza, 8th Floor, New York, NY 10004, and the shares are expected to trade on NASDAQ.

How many UTHR shares are reported outstanding in this Form 144?

The notice reports 42,446,733 shares of UTHR common stock outstanding. This figure provides context for the planned sale of 8,300 shares, indicating the relative size of Mahon’s proposed transaction compared with the total outstanding common shares.

How were the UTHR shares to be sold by Paul Mahon acquired?

The shares to be sold were acquired via a Stock Option Exercise from the issuer, with cash payment on July 16, 2026. This links the proposed 8,300-share sale to exercised stock options rather than open-market purchases.

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 A. 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	4429637.79	42446733	07/16/2026	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	07/16/2026	Stock Option Exercise	Issuer			8300	07/16/2026	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	07/02/2026	8300	4586274.56
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

144: Remarks and Signature

Remarks
Date of Notice	07/16/2026
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)