X0508 4 2025-08-15 0000017843 CARPENTER TECHNOLOGY CORP CRS 0001420435 Thene Tony R CARPENTER TECHNOLOGY CORPORATION 1735 MARKET STREET, 15TH FL PHILADELPHIA PA 19103 1 1 0 0 President and CEO 0 Common Stock 2025-08-15 4 F 0 14252 243.16 D 537054 D Common Stock 2025-08-15 4 A 0 16965 A 554019 D Common Stock 2025-08-18 4 S 0 13148 244.7137 D 540871 D Common Stock 2025-08-18 4 S 0 5852 245.6156 D 535019 D Common Stock 5500 I In Trust 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. The price reported is an average of the total transactions executed for the day, with the individual transactions ranging from a low of $244.22 per share to a high of $245.20 per share. The price reported is an average of the total transactions executed for the day, with the individual transactions ranging from a low of $245.24 per share to a high of $245.89 per share. These shares are held in the Thene Revocable Living Trust dated September 17, 2010, Tony R. Thene and Holly Thene, Trustees. James D. Dee/POA 2025-08-19