<div id="readability-page-1"><div><p><span>Loy Bertrand Chairman of the Board of Entegris Inc [ENTG] filed a Form 4 on December 3, 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>12/1/25</span></td><td><span>Planned Exercise(1)(2)</span></td><td><span>57,570</span></td><td><span>$33.33</span></td><td><span>$1,918,808</span></td></tr><tr><td><span>12/1/25</span></td><td><span>Planned Sale(2)</span></td><td><span>57,570</span></td><td><span>$76.88</span></td><td><span>$4,425,993</span></td></tr></tbody></table></div><p><span>Ending Holdings: 305,820 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 2.6 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>

ENTG

<p>Loy Bertrand, Chairman of Entegris Inc [ENTG], sold 57,570 shares worth $4.4 million on December 1, 2025, as disclosed in a Form 4 filing with the SEC. The transactions were part of a prearranged trading plan (10b5-1). Bertrand's ending holdings are 305,820 shares.</p>

Chmn Loy Sells 57,570 ($4.4M) Of Entegris Inc [ENTG]