FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * EDGEMOND JAMES   2. Issuer Name and Ticker or Trading Symbol UNITED THERAPEUTICS Corp [UTHR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CFO and Treasurer (Last) (First) (Middle) 1040 SPRING STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/15/2019 (Street) SILVER SPRING, MD 20910 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               753 (1) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Options (2)

$ 135.42 (3)

03/15/2019

A

162,500

03/15/2023(4)

03/15/2027

Common Stock

162,500

$ 0

162,500

D

Stock Options (2)

$ 117.76

03/15/2019

A

162,500

03/15/2021(5)

03/15/2027

Common Stock

162,500

$ 0

162,500

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
EDGEMOND JAMES 1040 SPRING STREET SILVER SPRING, MD 20910			CFO and Treasurer

Signatures

/s/ John S. Hess, Jr. under Power of Attorney		03/18/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes 187 shares acquired on March 4, 2019, under the United Therapeutics Corporation Employee Stock Purchase Plan ("ESPP").
(2)	These stock options represent up-front equity grants covering four years of equity compensation for this named executive officer (2019 through 2022) and have been designed such that: (a) overall equity compensation expense on an annualized basis, and overall dilution, are both expected to be lower than if the Company had continued with the previous equity compensation program for four additional years; (b) the named executive officer will be incented to achieve the Company's business objectives over the four-year period; and (c) vesting is heavily weighted toward the end of the four-year period, in order to aid in retention over that timeframe.
(3)	Exercise price is equal to 115% of the closing price for the Company's common stock on the date of grant.
(4)	This award will cliff vest (100%) on March 15, 2023.
(5)	These stock options will vest in equal one-third installments on March 15, 2021, 2022 and 2023.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.