Notice of Proposed Sale · 144

Carpenter Technology Corp

CRSNYSEEQUITYCurrent

Notice of Proposed Sale

Filed Aug 25, 2026Accepted Aug 25, 2026, 5:08 PM EDTFiling CIK 17843Accession 0001950047-26-008698

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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: CARPENTER TECHNOLOGY CORPORATION
Issuer CIK: 0000017843
SEC file number: 001-05828
Phone: 610-208-2000
Person for whose account securities are to be sold: THENE REVOCABLE LIVING TRUST
Relationships to issuer: Officer · Director
Street: 1735 Market Street
City: Philadelphia
State / country code: PA
Postal code: 19103

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
Common	57,456	27,803,015.86	49,558,566	08/25/2026	NYSE	Morgan Stanley Smith Barney LLC Executive Financial Services

Broker / market maker — proposed row 1, entry 1

Name: Morgan Stanley Smith Barney LLC Executive Financial Services
Street: 1 New York Plaza
Street (continued): 8th Floor
City: New York
State / country code: NY
Postal code: 10004

Acquisition of securities to be sold

Acquisition of securities to be sold · 3 reported rows
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
Common	07/12/2025	Performance Shares	Issuer	19,000	N	07/12/2025	Not Applicable
Common	07/15/2025	Performance Shares	Issuer	38,100	N	07/15/2025	Not Applicable
Common	08/15/2025	Restricted Stock	Issuer	356	N	08/15/2025	Not Applicable

Prior-sale reporting

Nothing to report for the preceding three months: Y

Notice signature

Notice date: 08/25/2026
Signed: /s/ Tony R.Thene

Company context

Carpenter Technology Corporation is a recognized leader in high-performance specialty alloy materials and process solutions for critical applications in the aerospace and defense, medical, transportation, energy, and industrial and consumer markets. Founded in 1889, Carpenter Technology has evolved to become a pioneer in premium specialty alloys including nickel, cobalt, and titanium and material process capabilities that solve our customers’ current and future material challenges. More information about Carpenter Technology can be found at www.carpentertechnology.com.

Current securities

CRSNYSE · EQUITY · Current

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