FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
LAIN TIMOTHY
  2. Issuer Name and Ticker or Trading Symbol
CARPENTER TECHNOLOGY CORP [CRS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP and CFO
(Last)
(First)
(Middle)
C/O CARPENTER TECHNOLOGY CORPORATION, 1735 MARKET STREET, 15TH FL		 3. Date of Earliest Transaction (Month/Day/Year)
07/16/2024
(Street)

PHILADELPHIA, PA 19103		 4. If Amendment, Date Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4) 		7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/16/2024   A   21,878 A (1) 101,628.73 D  
Common Stock 07/16/2024   F   9,773 D $ 122.25 (2) 91,855.73 D  
Common Stock               3,094.727 (3) I Held by the 401(k) Retirement Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5) 		6. Date Exercisable and Expiration Date
(Month/Day/Year) 		7. Title and Amount of Underlying Securities
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4) 		10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4) 		11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
LAIN TIMOTHY
C/O CARPENTER TECHNOLOGY CORPORATION
1735 MARKET STREET, 15TH FL
PHILADELPHIA, PA 19103		       SVP and CFO  

Signatures

 James D. Dee/POA   07/18/2024
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person was granted a performance-based restricted stock unit award with an effective grant date of August 16, 2021, and performance period ending June 30, 2024. The financial results were confirmed and approved on July 16, 2024, by the Audit/Finance Committee of Carpenter's Board of Directors and, on July 16, 2024, the Human Capital Management Committee of Carpenter's Board of Directors certified the achievement of the performance targets based on the approved financial results.
(2) In connection with the vesting of reported performance award under the Carpenter Technology Corporation Stock-Based Compensation Plan for Officers and Key Employees.
(3) 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.

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