UTHR (UTHR) investor files to sell 8,300 shares, cites $4.29M value

Rhea-AI Filing Summary

Holder Paul Mahon filed to sell up to 8,300 shares of UTHR common stock through Morgan Stanley Smith Barney’s Executive Financial Services, with an indicated aggregate market value of $4,291,512.51, and with 42,890,692 shares of the class reported as outstanding on NASDAQ as of 08/06/2026. The filing also lists a pattern of prior open-market sales over the past three months, each for 8,300 shares, including transactions on 07/16/2026 for $4,429,637.79, 07/02/2026 for $4,586,274.56, and earlier dates in May and June 2026 with similar block sizes and multi-million-dollar dollar amounts.

Key Figures

Shares to be sold: 8,300 shares Aggregate market value: $4,291,512.51 Shares outstanding: 42,890,692 shares +3 more

6 metrics

Shares to be sold 8,300 shares Planned sale size reported in the Form 144

Aggregate market value $4,291,512.51 Value associated with the 8,300 shares to be sold

Shares outstanding 42,890,692 shares Common shares of the class reported outstanding as of 08/06/2026

Sale on 07/16/2026 $4,429,637.79 Proceeds from a 3‑month prior sale of 8,300 common shares

Sale on 07/02/2026 $4,586,274.56 Proceeds from a 3‑month prior sale of 8,300 common shares

Sale on 05/07/2026 $4,870,054.05 Proceeds from an earlier 8,300‑share sale listed in past 3 months

Key Terms

Form 144, aggregate market value, Securities To Be Sold, Securities Sold During The Past 3 Months

4 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

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.

aggregate market value financial

"Common | Morgan Stanley Smith Barney LLC... | 8300 | 4291512.51"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

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Available on EDGAR 08/06/2026 - 04:03 PM Accepted by SEC EDGAR 08/06/2026 - 04:02 PM Learn about SEC filing dates

FAQ

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

The Form 144 shows Paul Mahon intends to sell up to 8,300 UTHR common shares through Morgan Stanley Smith Barney’s Executive Financial Services, with an indicated aggregate market value of $4,291,512.51 and listing NASDAQ as the exchange.

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

The Form 144 reports 42,890,692 UTHR common shares outstanding as of 08/06/2026. This figure provides context for the planned 8,300-share sale, indicating the relative size of the proposed disposition versus the total class.

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

The filing lists several past 3‑month sales, each for 8,300 shares, including 07/16/2026 at $4,429,637.79, 07/02/2026 at $4,586,274.56, plus additional 8,300‑share transactions in May and June 2026 with multi‑million dollar amounts.

What is the planned sale size and value in the UTHR Form 144?

The planned sale size is 8,300 UTHR common shares, with an indicated aggregate market value of $4,291,512.51. This information comes from the securities information section describing the number of shares and total dollar value.

Which broker is handling the proposed UTHR share sale for Paul Mahon?

The proposed UTHR share sale is associated with Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, as the broker listed in the securities information section.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	4291512.51	42890692	08/06/2026	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	08/06/2026	Stock Option Exercise	Issuer			8300	08/06/2026	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	07/16/2026	8300	4429637.79
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

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)