United Therapeutics officer proposes $113M share sale

Q: How many UTHR shares is officer Martine Rothblatt proposing to sell?

The notice lists 209,000 common shares for sale, with an aggregate market value of $113,255,010, and October 1, 2026 as the anticipated sale date. Morgan Stanley Smith Barney LLC is named in the broker field.

The notice lists repeated transactions of 9,500 shares each as 10b5-1 sales from July 2 through September 30, 2026.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

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Form Type

144

Rhea-AI Filing Summary

United Therapeutics Corp. officer Martine Rothblatt’s notice lists a proposed sale of 209,000 common shares, with an aggregate market value of $113,255,010, through Morgan Stanley Smith Barney LLC. The anticipated sale date is October 1, 2026; the securities entry describes an option exercise from the issuer, with cash listed as payment. Remarks say shares were sold by Rothblatt and/or the Martine Rothblatt Property Management Trust, which she beneficially owns. The notice also lists repeated 9,500-share transactions identified as 10b5-1 sales from July 2 through September 30, 2026.

Key Figures

Proposed sale: 209,000 common shares Aggregate market value: $113,255,010 Shares outstanding: 42,890,692 shares +1 more

4 metrics

Proposed sale 209,000 common shares Sale notice

Aggregate market value $113,255,010 Proposed sale

Shares outstanding 42,890,692 shares Securities information table

Shares per listed recent sale 9,500 shares Transactions identified as 10b5-1 sales

Key Terms

10b5-1 Sales, Exercise of Stock Options, Aggregate market value, Rule 144

4 terms

10b5-1 Sales regulatory

"10b5-1 Sales for MARTINE ROTHBLATT"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Exercise of Stock Options financial

"Exercise of Stock Options | Issuer"

Aggregate market value financial

"113255010.00"

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.

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

FAQ

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

How many UTHR shares is officer Martine Rothblatt proposing to sell?

The notice lists 209,000 common shares for sale, with an aggregate market value of $113,255,010, and October 1, 2026 as the anticipated sale date. Morgan Stanley Smith Barney LLC is named in the broker field.

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

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Available on EDGAR 10/01/2026 - 04:38 PM Accepted by SEC EDGAR 10/01/2026 - 04:37 PM

144: Filer Information

Filer CIK

0001106578

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 CORP

SEC File Number

000-26301

Address of Issuer

1000 SPRING ST
SILVER SPRING
MARYLAND
20910

Phone

3016089292

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

MARTINE ROTHBLATT

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

Director

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

209000

113255010.00

42890692

10/01/2026

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

10/01/2026

Exercise of Stock Options

Issuer

209000

10/01/2026

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