<div><div></div><div>On December 4, 2025, ATI Inc announced the appointment of J. Robert Foster as Senior Vice President, Finance and Chief Financial Officer, effective January 1, 2026, succeeding Donald P. Newman. Additionally, Tina K. Busch resigned as Chief Human Resources Officer on December 5, 2025.<div><table><tbody><tr><td>Individual</td><td>J. Robert Foster</td><td>Tina K. Busch</td></tr><tr><td>Role</td><td>Senior Vice President, Finance and Chief Financial Officer</td><td>Chief Human Resources Officer</td></tr><tr><td>Type of Change</td><td>Appointed</td><td>Resigned</td></tr><tr><td>Effective Date</td><td>January 1, 2026</td><td>December 5, 2025</td></tr><tr><td>Reason</td><td>N/A</td><td>Not disclosed</td></tr><tr><td>Replacement Info</td><td>N/A</td><td>Not disclosed</td></tr><tr><td>Background Details</td><td>Vice President, ATI Financial and Operating Strategies since July 2025</td><td>N/A</td></tr><tr><td>Board/Committee Role Changes</td><td>Not disclosed</td><td>Not disclosed</td></tr></tbody></table></div>Original SEC Filing: ATI INC [ ATI ] - 8-K - Dec. 08, 2025<section>Disclaimer<div>This is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC.</div></section></div></div>

ATI Inc announced the appointment of J. Robert Foster as Senior Vice President, Finance and CFO, effective January 1, 2026, succeeding Donald P. Newman. Additionally, Tina K. Busch resigned as Chief Human Resources Officer on December 5, 2025. These changes were disclosed in an SEC filing dated December 8, 2025.

ATI Inc Announces CFO Appointment and CHRO Resignation