<div id="readability-page-1"><div><p><span>Rothblatt Martine A Chairman of the Board of United Therapeutics Corp [UTHR] filed a Form 4 on December 12, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><th><span>Date</span></th><th><span>Transaction</span></th><th><span>Shares</span></th><th><span>Price</span></th><th><span>Value</span></th></tr><tr><td><span>12/11/25-12/12/25</span></td><td><span>Planned Exercise(1)(2)</span></td><td><span>8,000</span></td><td><span>$120.26</span></td><td><span>$962,080</span></td></tr><tr><td><span>12/11/25-12/12/25</span></td><td><span>Planned Sale(2)</span></td><td><span>8,000</span></td><td><span>$487.33</span></td><td><span>$3,898,662</span></td></tr></tbody></table></div><p><span>Ending Holdings: 639,489 (130 - Direct, 639,359 - Indirect)</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>4,000 shares exercised 5.7 years after vest date and 3.1 months before expiration date.</span></td></tr><tr><td><span> </span></td><td><span>4,000 shares exercised 5.7 years after vest date and 3.1 months before expiration date.</span></td></tr><tr><td><span>(2)</span></td><td><span>Executed pursuant to a prearranged trading plan (10b5-1).</span></td></tr></tbody></table></div><p><span>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.</span></p><p><span>Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data.</span></p><span> </span></div></div>

UTHR

<p>Martine A. Rothblatt, Chairman of United Therapeutics Corp, sold 8,000 shares worth $3.9M, as disclosed in a Form 4 filed with the SEC. The transaction was executed under a prearranged trading plan (10b5-1). Ending holdings are 639,489 shares. The Washington Service offers insider trading analysis and data services.</p>

Chmn Rothblatt Sells 8,000 ($3.9M) Of United Therapeutics Corp [UTHR]