BWX Technologies, Inc. on November 4, 2021, David S. Black, Senior Vice President of BWX Technologies, Inc. provided notice of his decision to retire from the Company. Mr. Black will continue in his role as Senior Vice President and CFO through November 15, 2021, after which he will serve as Special Advisor to the Chief Executive Officer (CEO") to assist with the transition of the CFO role until his retirement from the Company on April 1, 2022.