X0508 4 2026-03-15 false 0001082554 UNITED THERAPEUTICS Corp UTHR 0001106578 ROTHBLATT MARTINE A C/O UNITED THERAPEUTICS CORPORATION 1000 SPRING STREET SILVER SPRING MD 20910 true true false false Chairperson & CEO false Common Stock 2026-03-15 4 M false 32499.00 A 32629.00 D Common Stock 2026-03-15 4 M false 37080.00 A 69709.00 D Common Stock 2026-03-15 4 F false 13637.00 536.12 D 56072.00 D Common Stock 2026-03-15 4 F false 15559.00 536.12 D 40513.00 D Common Stock 166.00 I by Spouse Common Stock 324518.00 I by Trust Common Stock 258117.00 I by Trust Common Stock 45596.00 I by Trust Common Stock 10962.00 I by Trust Restricted Stock Units 2026-03-15 4 M false 32499.00 0.00 D Common Stock 32499.00 0.00 D Restricted Stock Units 2026-03-15 4 M false 37080.00 0.00 D Common Stock 37080.00 0.00 D Each restricted stock unit represents the right to receive, following vesting, one share of United Therapeutics Corporation common stock. Represents the number of shares withheld by United Therapeutics for tax purposes, upon vesting of restricted stock units. Shares held in family trusts as to which the Reporting Person shares investment power and the Reporting Person and/or immediate family members are beneficiaries. Shares held in family trusts as to which the Reporting Person's spouse is sole trustee and sole beneficiary or co-trustee and settlor with power to revoke. Shares held in family trusts as to which the Reporting Person's spouse shares investment power and the Reporting Person and/or immediate family members are beneficiaries. Shares held in family trusts as to which the Reporting Person is sole trustee and sole beneficiary or co-trustee and settlor with power to revoke. Shares received upon vesting of performance-based restricted stock units on March 15, 2026. Restricted stock units converted on a one-for-one basis into shares of common stock. These restricted stock units were granted on March 15, 2026. /s/ John S. Hess, Jr. under Power of Attorney 2026-03-17