Transaction Details

Footnotes

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.