United Therapeutics (UTHR): Martine Rothblatt reports 5.3% ownership stake

Rhea-AI Filing Summary

United Therapeutics Corporation has an updated ownership report from Martine A. Rothblatt on its common stock. Rothblatt reports beneficial ownership of 2,333,721 shares of common stock, representing 5.3% of the class.

The holdings include 843,023 shares over which Rothblatt has sole voting and dispositive power and 1,490,698 shares over which voting and dispositive power is shared. The position includes currently exercisable options held directly and through a family trust, as well as shares held through various trusts, a spouse, and charitable organizations where Rothblatt or related parties have differing levels of investment and voting power.

Key Figures

Beneficially owned shares: 2,333,721 shares Percent of class: 5.3% Sole voting and dispositive power: 843,023 shares +4 more

7 metrics

Beneficially owned shares 2,333,721 shares Total United Therapeutics common stock beneficially owned by Martine A. Rothblatt

Percent of class 5.3% Percentage of United Therapeutics common stock class beneficially owned

Sole voting and dispositive power 843,023 shares Shares over which Rothblatt has sole voting and dispositive power

Shared voting and dispositive power 1,490,698 shares Shares over which Rothblatt shares voting and dispositive power

Directly held options 793,868 shares Currently exercisable options held directly by Rothblatt

Family trust options 849,192 shares Currently exercisable options held by a family trust

Charitable organization holdings 21,933 shares Shares held by charitable organizations with shared investment and voting power

Key Terms

beneficially owned, sole voting power, shared voting power, dispositive power, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: 2,333,721 shares"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Sole power to vote or to direct the vote: 843,023"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

shared voting power financial

"Shared power to vote or to direct the vote: 1,490,698"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

dispositive power financial

"Sole power to dispose or to direct the disposition of: 843,023"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Schedule 13G regulatory

"Ownership of more than 5 Percent on Behalf of Another Person."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

How many United Therapeutics (UTHR) shares does Martine A. Rothblatt beneficially own?

Martine A. Rothblatt beneficially owns 2,333,721 shares of United Therapeutics common stock. This total includes directly held shares, currently exercisable options, and shares held through various trusts, a spouse, and charitable organizations with differing voting and investment powers.

What percentage of United Therapeutics (UTHR) does Martine A. Rothblatt own?

Martine A. Rothblatt reports beneficial ownership of 5.3% of United Therapeutics’ common stock. This percentage reflects all shares and options aggregated across direct holdings, family trusts, other trusts, a spouse’s holdings, and related charitable organizations.

How many United Therapeutics (UTHR) shares does Martine A. Rothblatt control solely?

Martine A. Rothblatt has sole voting and dispositive power over 843,023 shares of United Therapeutics. These shares include directly held stock, currently exercisable options, and certain trust-held shares where Rothblatt alone has investment and voting authority.

How many United Therapeutics (UTHR) shares does Martine A. Rothblatt control jointly with others?

Martine A. Rothblatt has shared voting and dispositive power over 1,490,698 shares of United Therapeutics. These shares are mainly held through family and other trusts, a spouse’s holdings, and charitable organizations where authority is shared with other individuals or entities.

What options are included in Martine A. Rothblatt’s United Therapeutics (UTHR) beneficial ownership?

The reported beneficial ownership includes currently exercisable options to purchase 793,868 shares held directly by Martine A. Rothblatt and options to purchase 849,192 shares held by a family trust over which Rothblatt shares both investment power and voting power.

How are trusts and charitable organizations involved in Martine A. Rothblatt’s UTHR holdings?

Rothblatt’s beneficial ownership includes shares held by multiple trusts and 21,933 shares held by charitable organizations. Various individuals and entities are beneficiaries or co‑trustees of these trusts, and directors of the charities oversee shares where the organizations are the beneficiaries.

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Available on EDGAR 08/14/2026 - 07:00 AM Accepted by SEC EDGAR 08/14/2026 - 07:00 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 7)

UNITED THERAPEUTICS Corp

(Name of Issuer)

Common Stock, par value $.01 per share

(Title of Class of Securities)

91307C102

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 91307C102

1

Names of Reporting Persons

ROTHBLATT MARTINE A

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 843,023.00
6	Shared Voting Power 1,490,698.00
7	Sole Dispositive Power 843,023.00
8	Shared Dispositive Power 1,490,698.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,333,721.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.3 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: UNITED THERAPEUTICS Corp
(b)	Address of issuer's principal executive offices: 1000 Spring Street, Silver Spring, MD 20910
Item 2.
(a)	Name of person filing: Martine A. Rothblatt
(b)	Address or principal business office or, if none, residence: 1000 Spring Street Silver Spring, MD 20910
(c)	Citizenship: United States of America
(d)	Title of class of securities: Common Stock, par value $.01 per share
(e)	CUSIP No.: 91307C102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,333,721 shares
(b)	Percent of class: 5.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 843,023
	(ii) Shared power to vote or to direct the vote: 1,490,698
	(iii) Sole power to dispose or to direct the disposition of: 843,023
	(iv) Shared power to dispose or to direct the disposition of: 1,490,698 The shares beneficially owned by Dr. Rothblatt include currently exercisable options to purchase 793,868 shares held directly by Dr. Rothblatt and currently exercisable options to purchase 849,192 shares held by a family trust over which Dr. Rothblatt shares investment power and voting power. Also includes 8,642 shares held indirectly by trusts over which Dr. Rothblatt has sole investment power and sole voting power, 249,108 shares held indirectly by trusts over which Dr. Rothblatt's spouse has investment power and voting power, 233,493 shares held indirectly by trusts over which Dr. Rothblatt and her spouse have shared investment power and shared voting power, 91,210 additional shares held indirectly by trusts over which Dr. Rothblatt has shared investment power and shared voting power, 45,596 additional shares held indirectly by trusts over which Dr. Rothblatt's spouse has shared investment power and shared voting power, 166 shares held directly by Dr. Rothblatt's spouse, and 21,933 shares held by charitable organizations over which Dr. Rothblatt has shared investment and shared voting power.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various individuals and entities are beneficiaries of or co-trustees of certain of the trusts. Other individuals are directors of the charitable organizations and the charitable organizations are the beneficiaries of the shares owned by them.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

ROTHBLATT MARTINE A

Signature:	/s/ Martine A. Rothblatt
Name/Title:	Martine A. Rothblatt
Date:	08/14/2026