X0306 4 2015-07-06 0 0001486957 BWX Technologies, Inc. BWXT 0001645863 Kerr Jason S. 800 MAIN STREET, 4TH FLOOR LYNCHBURG VA 24504 0 1 0 0 See Remarks Stock Option (right to buy) 23.62 2015-07-06 4 A 0 1958 0.00 A 2025-03-02 Common Stock 1958 8288 D Stock Option (right to buy) 24.97 2015-07-06 4 D 0 211 0.00 D 2021-03-03 Common Stock 211 3518 D Stock Option (right to buy) 20.47 2015-07-06 4 D 0 136 0.00 D 2020-03-04 Common Stock 136 2255 D Stock Option (right to buy) 20.31 2015-07-06 4 D 0 74 0.00 D 2019-03-05 Common Stock 74 1219 D Stock Option (right to buy) 26.39 2015-07-06 4 D 0 50 0.00 D 2018-03-04 Common Stock 50 829 D Restricted Stock Unit 0.00 2015-07-06 4 A 0 352 0.00 A 2018-03-02 Common Stock 352 1489 D Restricted Stock Unit 0.00 2015-07-06 4 A 0 363 0.00 A 2018-03-02 Common Stock 363 1536 D Represents adjustments made pursuant to the Employee Matters Agreement, dated as of June 8, 2015, between the Issuer and Babcock & Wilcox Enterprises, Inc. and the Issuer's Amended and Restated 2010 Long-Term Incentive Plan in connection with the Issuer's spin-off of Babcock & Wilcox Enterprises, Inc. on June 30, 2015. Stock options vest in three equal annual installments beginning March 2, 2016. One-third of stock options are vested. The remaining two-thirds of the stock options will vest in two equal annual installments beginning March 3, 2016. Two-thirds of stock options are vested. The remaining one-third of the stock options will vest March 4, 2016. 100% of stock options are vested. 100% of stock options are vested. RSUs vest in three equal annual installments beginning March 2, 2016. 100% of RSUs cliff vest on March 2, 2018. Vice President and Chief Accounting Officer /s/ Jason S. Kerr, by Theresa B. Taylor, attorney-in-fact 2015-07-08