<div id="readability-page-1"><div><p><span>Giesecke Daniel J Chief Operating Officer of Knowles Corp [KN] 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</span></td><td><span>Exercise(1)</span></td><td><span>31,513</span></td><td><span>$16.77</span></td><td><span>$528,473</span></td></tr><tr><td><span>12/11/25</span></td><td><span>Surrender(2)</span></td><td><span>26,205</span></td><td><span>$24.04</span></td><td><span>$629,968</span></td></tr></tbody></table></div><p><span>Ending Holdings: 184,180 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 4.8 years after vest date and 1.2 years before expiration date.</span></td></tr><tr><td><span>(2)</span></td><td><span>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</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>

<p>Daniel J. Giesecke, COO of Knowles Corp, filed a Form 4 with the SEC on December 12, 2025, disclosing changes in ownership. On December 11, 2025, he exercised 31,513 shares at $16.77 each and surrendered 26,205 shares at $24.04 each to cover option exercise costs and tax liabilities. His ending direct holdings are 184,180 shares.</p>

COO Giesecke Acquires 5,308 Of Knowles Corp [KN]