BWX Technologies, Inc. — Director's Dealing 2016

May 27, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BWX Technologies, Inc. (BWXT)
CIK: 0001486957
Period of Report: 2016-05-25

Reporting Person: Black David S (Sr. VP, CFO and Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-25	Common Stock	M	6174	$18.75	Acquired	62971	Direct
2016-05-25	Common Stock	F	4268	$34.85	Disposed	58703	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-05-25	Stock Option (right to buy)	$18.75	M	6174	Disposed	2017-03-04	Common Stock (6174)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2764	Indirect

Footnotes

F1: Based on number of units held in the BWXT Thrift Plan and the fair market value of BWXT common stock as of May 26, 2016.

F2: Stock options vested in three equal annual installments beginning August 2, 2011.