X0306 4 2016-08-11 0001486957 BWX Technologies, Inc. BWXT 0001681053 Loving Richard W 800 MAIN STREET 4TH FLOOR LYNCHBURG VA 24504 0 1 0 0 SVP, Human Resources Common Stock 4950 I 401(k) Plan Restricted Stock Unit 0 2016-08-11 4 A 0 1857 0 A 2019-08-11 Common Stock 1857 1857 D Restricted Stock Unit 0 2016-08-11 4 A 0 2692 0 A 2019-03-01 Common Stock 2692 2692 D Based on number of units held in the BWXT Thrift Plan and the fair market value of BWXT common stock as of August 5, 2016. Grant of restricted stock units pursuant to the Amended and Restated 2010 Long-Term Incentive Plan of BWX Technologies, Inc. Each restricted stock unit represents a contingent right to receive one share of BWXT common stock. RSUs vest in three equal annual installments beginning August 11, 2017. Grant of performance restricted stock units pursuant to the Amended and Restated 2010 Long-Term Incentive Plan of BWX Technologies, Inc. Each performance restricted stock unit represents a contingent right to receive one share of BWXT common stock. Performance restricted stock units cliff vest on March 1, 2019. Richard W. Loving, by Suzanne Warfield, attorney-in-fact 2016-08-15