<div id="readability-page-1"><div>Mosley William D Chairman of the Board of Seagate Technology Holdings plc [STX] filed a Form 4 on December 12, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:<div><table><tbody><tr><th>Date</th><th>Transaction</th><th>Shares</th><th>Price</th><th>Value</th></tr><tr><td>12/11/25</td><td>Exercise</td><td>3,319</td><td>$0.00</td><td>N/A</td></tr><tr><td>12/11/25</td><td>Surrender(1)</td><td>1,678</td><td>$307.85</td><td>$516,564</td></tr></tbody></table></div>Ending Holdings: 449,895 - Direct<ul><li>(1)</li><li>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</li></ul>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.Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data. </div></div>

Chairman Mosley of Seagate Technology Holdings plc filed a Form 4 with the SEC, disclosing changes in ownership. On December 11, 2025, Mosley exercised 3,319 shares and surrendered 1,678 shares at $307.85 each to cover option exercise costs and tax liabilities. His direct holdings now total 449,895 shares.

Chmn Mosley Acquires 1,641 Of Seagate Technology Holdings plc [STX]