United Therapeutics Officer Files Form 144 to Sell $101.8M in Common Stock

Executive Summary

On September 1, 2026, Martine Rothblatt, an officer of United Therapeutics Corp ($UTHR), submitted a Form 144 notice of proposed sale for 199,500 shares of common stock with an aggregate market value of approximately $101.82 million.

Key Transaction Details

• Securities to be Sold: 199,500 Common Shares
• Aggregate Market Value: $101,820,810.00 (implied ~$510.38 per share)
• Nature of Acquisition: Exercise of stock options from the issuer against cash on September 1, 2026
• Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
• Plan Adoption: Conducted pursuant to a Rule 10b5-1 trading plan adopted on November 21, 2025

Historical Context & Market Impact

• Over the prior three months, regular daily sales of 9,500 shares have occurred in accordance with the established 10b5-1 trading schedule.
• Total shares outstanding for the issuer stand at 42,890,692, meaning the proposed sale represents roughly 0.47% of total outstanding shares.
• While the monetary magnitude is significant ($101.8M+), the programmatic nature and advance adoption of the 10b5-1 plan substantially mitigate unexpected negative signaling.