144 0001915828 XXXXXXXX LIVE 0000017843 CARPENTER TECHNOLOGY CORPORATION 001-05828 1735 Market Street Philadelphia PA 19103 610-208-2000 MARSHALL D AKINS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

11815 5214625.87 49685612 05/05/2026 NYSE Common 07/21/2021 Performance Shares Issuer N 1159 07/21/2021 Not Applicable Common 08/15/2022 Restricted Stock Issuer N 244 08/15/2022 Not Applicable Common 08/16/2022 Restricted Stock Issuer N 507 08/16/2022 Not Applicable Common 08/17/2022 Restricted Stock Issuer N 818 08/17/2022 Not Applicable Common 06/30/2023 Performance Shares Issuer N 2350 06/30/2023 Not Applicable Common 08/15/2023 Restricted Stock Issuer N 992 08/15/2023 Not Applicable Common 08/16/2023 Restricted Stock Issuer N 391 08/16/2023 Not Applicable Common 08/17/2023 Restricted Stock Issuer N 636 08/17/2023 Not Applicable Common 06/30/2024 Performance Shares Issuer N 2202 06/30/2024 Not Applicable Common 08/15/2024 Restricted Stock Issuer N 1163 08/15/2024 Not Applicable Common 08/15/2024 Restricted Stock Issuer N 966 08/15/2024 Not Applicable Common 08/16/2024 Restricted Stock Issuer N 387 08/16/2024 Not Applicable Y 05/05/2026 /s/ Marshall D. Akins