X0609 4 2026-07-14 0000017843 CARPENTER TECHNOLOGY CORP CRS 0001579848 LAIN TIMOTHY false C/O CARPENTER TECHNOLOGY CORPORATION 1735 MARKET STREET, 15TH FL PHILADELPHIA PA 19103 0 1 0 0 SVP and CFO 0 Common Stock 2026-07-14 4 A 0 18076 A 124373.73 D Common Stock 2026-07-14 4 F 0 8300 576.87 D 116073.73 D Common Stock 3138.321 I By 401K Retirement Plan The reporting person was granted a performance-based restricted stock unit award with an effective grant date of August 15, 2023, and performance period ending June 30, 2026. The financial results were confirmed and approved on July 14, 2026, by the Audit/Finance Committee of Carpenter's Board of Directors and, on July 14, 2026, the Human Capital Management Committee of Carpenter's Board of Directors certified the achievement of the performance targets based on the approved financial results. In connection with the vesting of reported performance award under the Carpenter Technology Corporation Stock-Based Compensation Plan for Officers and Key Employees. Includes shares acquired under the Retirement Plan of Carpenter Technology Corporation. The share balance under the Retirement Plan of Carpenter Technology fluctuates due to rounding differences produced by the Plan's method of estimating shares. James D. Dee/POA 2026-07-16