Ownership Submission
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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
ROTHBLATT MARTINE A
  2. Issuer Name and Ticker or Trading Symbol
UNITED THERAPEUTICS Corp [UTHR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman & CEO
(Last)
(First)
(Middle)
C/O UNITED THERAPEUTICS CORPORATION, 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               140 D  
Common Stock               166 I By Spouse
Common Stock               683,489 I By Trusts

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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 (1) $ 135.42 (2) 03/15/2019   A   500,000   03/15/2023(3) 03/15/2027 Common Stock 500,000 $ 0 500,000 D  
Stock Options (1) $ 117.76 03/15/2019   A   500,000   03/15/2021(4) 03/15/2027 Common Stock 500,000 $ 0 500,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROTHBLATT MARTINE A
C/O UNITED THERAPEUTICS CORPORATION
1040 SPRING STREET
SILVER SPRING, MD 20910
  X     Chairman & CEO  

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) 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.
(2) Exercise price is equal to 115% of the closing price for the Company's common stock on the date of grant.
(3) This award will cliff vest (100%) on March 15, 2023.
(4) These stock options will vest in equal one-third installments on March 15, 2021, 2022 and 2023.

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