CRS Carpenter Technology Corp

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                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * PRATT GREGORY A	2. Issuer Name and Ticker or Trading Symbol CARPENTER TECHNOLOGY CORP [ CRS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) CARPENTER TECHNOLOGY CORPORATION, 1735 MARKET STREET, 15TH FL	3. Date of Earliest Transaction (MM/DD/YYYY) 12/2/2019
(Street) PHILADELPHIA, PA 19103 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	12/2/2019		M		17528	A	$40.42	22141	D
Common Stock	12/2/2019		S(1)		17202	D	$52.2961 (2)	4939	D
Common Stock	12/2/2019		S(1)		326	D	$52.9563 (3)	4613	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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
Stock Option (right to buy)	$40.42	12/2/2019		M			17528	(4)	2/5/2025	Common Stock	17528	(5)	175277	D

Explanation of Responses:
(1)	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 25, 2019.
(2)	The price reported is an average of the total transactions executed for the day, with the individual transactions ranging from a low of $51.92 per share to a high of $52.92 per share.
(3)	The price reported is an average of the total transactions executed for the day, with the individual transactions ranging from a low of $52.95 per share to a high of $52.99 per share.
(4)	3/12ths of the Option Award was exercisable immediately upon grant and the remainder of the Option Award became exercisable in 1/9th increments on the first day of each month over 9 months beginning 3/1/15.
(5)	The reporting person was granted an option to buy shares of common stock under the Carpenter Technology Corporation Stock-Based Compensation Plan for Officers and Key Employees.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PRATT GREGORY A CARPENTER TECHNOLOGY CORPORATION 1735 MARKET STREET, 15TH FL PHILADELPHIA, PA 19103	X

Signatures
James D. Dee/POA		12/4/2019
**Signature of Reporting Person		Date