BWXT BWX Technologies Inc

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 * Black David S	2. Issuer Name and Ticker or Trading Symbol BWX Technologies, Inc. [ BWXT ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) Sr. V.P., CFO
(Last)          (First)          (Middle) 800 MAIN STREET, 4TH FLOOR	3. Date of Earliest Transaction (MM/DD/YYYY) 8/28/2021
(Street) LYNCHBURG, VA 24504 (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	8/28/2021		M(1)		207	A	$0	68174	D
Common Stock	8/28/2021		F		207	D	$57.47	67967	D
Common Stock								2918	I	401(k) Plan (2)

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
Restricted Stock Units	$0.0	8/28/2021		M			73	(3)	3/1/2022	Common Stock	73.0	$0	1730	D
Restricted Stock Units	$0.0	8/28/2021		M			134	(4)	2/27/2023	Common Stock	134.0	$0	3154	D

Explanation of Responses:
(1)	The reported transaction involved withholding of 207 shares of common stock converted to pay taxes associated with the reporting person becoming retirement eligible on August 28, 2021.
(2)	Based on number of units held in the BWXT Thrift Plan and the fair market value of BWXT common stock as of June 30, 2021.
(3)	RSUs vest in three equal annual installments beginning March 1, 2020.
(4)	RSUs vest in three equal annual installments beginning February 27, 2021.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Black David S 800 MAIN STREET 4TH FLOOR LYNCHBURG, VA 24504			Sr. V.P., CFO

Signatures
/s/ David S. Black, by Theresa B. Taylor, attorney-in-fact		8/31/2021
**Signature of Reporting Person		Date