Martine A. Rothblatt's Stock Transactions in United Therapeutics Corp

Martine A. Rothblatt, Chairperson & CEO of United Therapeutics Corp, executed several stock transactions under a pre-arranged 10b5-1 trading plan. On September 12, 2025, Rothblatt exercised stock options for 4,000 shares at $120.26 per share and subsequently sold 4,000 shares at weighted average prices ranging from $402.21 to $404.89. On September 15, 2025, Rothblatt exercised another 4,000 stock options at the same price and sold 4,000 shares at weighted average prices ranging from $397.71 to $398.19. These transactions were part of a plan that will continue until the earlier of the exhaustion of a tranche of 294,000 stock options expiring on March 15, 2026, or December 31, 2025. Rothblatt also holds shares in various family trusts.