X0609 4 2026-08-15 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 2026-08-15 4 F 0 2407 544.59 D 113666.73 D Common Stock 2026-08-17 4 A 0 1383 A 115049.73 D Common Stock 3138.321 I By 401K Retirement Plan In connection with the vesting of previously reported restricted stock units. The reporting person was granted restricted stock units under the Carpenter Technology Corporation Stock-Based Incentive 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 2026-08-18