<div id="readability-page-1"><div><p><span>Yu Jonathan Yen-Wen Chief Operating Officer of Disc Medicine Inc [IRON] filed a Form 4 on November 13, 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>11/11/25</span></td><td><span>Planned Exercise(1)(2)</span></td><td><span>30,000</span></td><td><span>$2.65</span></td><td><span>$79,500</span></td></tr><tr><td><span>11/11/25</span></td><td><span>Planned Sale(2)</span></td><td><span>30,000</span></td><td><span>$84.70</span></td><td><span>$2,540,922</span></td></tr></tbody></table></div><p><span>Ending Holdings: 40,555 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 4.7 years 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>

IRON

<p>COO Yu Jonathan Yen-Wen of Disc Medicine Inc sold 30,000 shares for $2.5M, as disclosed in a Form 4 filed with the SEC. The sale was part of a prearranged trading plan (10b5-1).</p>

COO Yu Sells 30,000 ($2.5M) Of Disc Medicine Inc [IRON]