BWXT

SEC source: 0001628280-24-007296 · wk-form4_1709070756.xml · derivative · entry 4

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,663 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Represents performance restricted stock units ("PRSUs") awarded on February 25, 2021 for the performance period January 1, 2021 through December 31, 2023, for which performance goals have been achieved and certified on February 23, 2024. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on February 25, 2024.

F2 · derivative.expiration_date: Represents performance restricted stock units ("PRSUs") awarded on February 25, 2021 for the performance period January 1, 2021 through December 31, 2023, for which performance goals have been achieved and certified on February 23, 2024. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on February 25, 2024.

SEC source: 0001628280-24-007296 · wk-form4_1709070756.xml · derivative · entry 3

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 393 shares

Expires 2024-02-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in three equal annual installments beginning February 25, 2022.

SEC source: 0001628280-24-007296 · wk-form4_1709070756.xml · nonDerivative · entry 2

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,067

SEC source: 0001628280-24-007296 · wk-form4_1709070756.xml · nonDerivative · entry 1

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,921

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-007289 · wk-form4_1709070625.xml · derivative · entry 4

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 33,266 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Represents performance restricted stock units ("PRSUs") awarded on February 25, 2021 for the performance period January 1, 2021 through December 31, 2023, for which performance goals have been achieved and certified on February 23, 2024. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on February 25, 2024.

F2 · derivative.expiration_date: Represents performance restricted stock units ("PRSUs") awarded on February 25, 2021 for the performance period January 1, 2021 through December 31, 2023, for which performance goals have been achieved and certified on February 23, 2024. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on February 25, 2024.

SEC source: 0001628280-24-007289 · wk-form4_1709070625.xml · derivative · entry 3

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,219 shares

Expires 2024-02-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in three equal annual installments beginning February 25, 2022.

SEC source: 0001628280-24-007289 · wk-form4_1709070625.xml · nonDerivative · entry 2

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,706

SEC source: 0001628280-24-007289 · wk-form4_1709070625.xml · nonDerivative · entry 1

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233,613

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-005935 · wk-form4_1708551667.xml · derivative · entry 3

McCoy Kevin M · CIK 0001910103 · Pres., Government Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,064

Underlying: Common Stock · 1,064 shares

Expires 2025-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Restricted stock units vest in three equal annual installments beginning February 18, 2023.

SEC source: 0001628280-24-005935 · wk-form4_1708551667.xml · nonDerivative · entry 2

McCoy Kevin M · CIK 0001910103 · Pres., Government Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,268

SEC source: 0001628280-24-005935 · wk-form4_1708551667.xml · nonDerivative · entry 1

McCoy Kevin M · CIK 0001910103 · Pres., Government Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,792

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-005936 · wk-form4_1708551795.xml · derivative · entry 3

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 532

Underlying: Common Stock · 532 shares

Expires 2025-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in three equal annual installments beginning February 18, 2023.

SEC source: 0001628280-24-005936 · wk-form4_1708551795.xml · nonDerivative · entry 2

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,865

SEC source: 0001628280-24-005936 · wk-form4_1708551795.xml · nonDerivative · entry 1

Whitford Ronald Owen Jr · CIK 0001961247 · SVP, General Counsel and Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,106

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-005933 · wk-form4_1708551537.xml · derivative · entry 3

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,129

Underlying: Common Stock · 2,129 shares

Expires 2025-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Restricted stock units vest in three equal annual installments beginning February 18, 2023.

SEC source: 0001628280-24-005933 · wk-form4_1708551537.xml · nonDerivative · entry 2

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,955

SEC source: 0001628280-24-005933 · wk-form4_1708551537.xml · nonDerivative · entry 1

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,974

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-005931 · wk-form4_1708551439.xml · derivative · entry 3

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,772

Underlying: Common Stock · 10,645 shares

Expires 2025-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Restricted stock units vest in three equal annual installments beginning February 18, 2023.

SEC source: 0001628280-24-005931 · wk-form4_1708551439.xml · nonDerivative · entry 2

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,128

SEC source: 0001628280-24-005931 · wk-form4_1708551439.xml · nonDerivative · entry 1

Geveden Rex D · CIK 0001408482 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,630

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-000952 · wk-form4_1704836502.xml · derivative · entry 3

Meguid Omar Fathi · CIK 0001961051 · SVP and Chief Digital Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,862

Underlying: Common Stock · 2,931 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in three equal annual installments beginning January 5, 2024.

F1 · derivative.expiration_date: RSUs vest in three equal annual installments beginning January 5, 2024.

SEC source: 0001628280-24-000952 · wk-form4_1704836502.xml · nonDerivative · entry 2

Meguid Omar Fathi · CIK 0001961051 · SVP and Chief Digital Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,968

SEC source: 0001628280-24-000952 · wk-form4_1704836502.xml · nonDerivative · entry 1

Meguid Omar Fathi · CIK 0001961051 · SVP and Chief Digital Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,931

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-24-000453 · wk-form4_1704405384.xml · derivative · entry 1

PIASECKI NICOLE WEYERHAEUSER · CIK 0001183850 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 676

Underlying: Common Stock · 676 shares

Expires not disclosed

F1 · kind: Grant of restricted stock units pursuant to the 2020 Omnibus Incentive Plan of BWX Technologies, Inc. Each restricted stock unit represents a contingent right to receive one share of BWXT common stock.

F2 · derivative.exercise_date: RSUs vested immediately. The reporting person elected to defer receipt of shares underlying the RSUs. In accordance with her deferral election, vested shares will be delivered to the reporting person in three annual installments following termination of service on the Board of Directors.

F2 · derivative.expiration_date: RSUs vested immediately. The reporting person elected to defer receipt of shares underlying the RSUs. In accordance with her deferral election, vested shares will be delivered to the reporting person in three annual installments following termination of service on the Board of Directors.

SEC source: 0001628280-23-041452 · wk-form4_1702503567.xml · derivative · entry 1

Melvin Leland D · CIK 0001780421 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88.65

Underlying: Common Stock · 14.45 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on two restricted stock unit grant of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on two restricted stock unit grant of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on two restricted stock unit grant of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041455 · wk-form4_1702503710.xml · derivative · entry 1

Richardson John M · CIK 0001786800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169.34

Underlying: Common Stock · 20.25 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041453 · wk-form4_1702503644.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,060.62

Underlying: Common Stock · 82.26 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041451 · wk-form4_1702503477.xml · derivative · entry 1

Krieg Kenneth J · CIK 0001477490 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,045.65

Underlying: Common Stock · 54.72 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041449 · wk-form4_1702503335.xml · derivative · entry 1

Burbach Gerhard F · CIK 0001307313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 546.69

Underlying: Common Stock · 31.72 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041450 · wk-form4_1702503418.xml · derivative · entry 1

JASKA JAMES M · CIK 0001187147 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 825.17

Underlying: Common Stock · 35.55 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-041447 · wk-form4_1702503258.xml · derivative · entry 1

Bertsch Jan · CIK 0001477291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,879.91

Underlying: Common Stock · 68.28 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-035129 · wk-form4_1698266540.xml · derivative · entry 3

Fitzgerald Michael Thomas · CIK 0001953099 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,590

Underlying: Common Stock · 1,795 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in three equal annual installments beginning October 24, 2023.

F1 · derivative.expiration_date: RSUs vest in three equal annual installments beginning October 24, 2023.

SEC source: 0001628280-23-035129 · wk-form4_1698266540.xml · nonDerivative · entry 2

Fitzgerald Michael Thomas · CIK 0001953099 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,080

SEC source: 0001628280-23-035129 · wk-form4_1698266540.xml · nonDerivative · entry 1

Fitzgerald Michael Thomas · CIK 0001953099 · VP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,795

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-23-031984 · wk-form4_1694465164.xml · derivative · entry 1

Melvin Leland D · CIK 0001780421 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74.2

Underlying: Common Stock · 15.78 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031986 · wk-form4_1694465304.xml · derivative · entry 1

Richardson John M · CIK 0001786800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149.09

Underlying: Common Stock · 22.11 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on three restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031985 · wk-form4_1694465230.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,978.36

Underlying: Common Stock · 89.81 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on ten restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031982 · wk-form4_1694465092.xml · derivative · entry 1

Krieg Kenneth J · CIK 0001477490 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 990.93

Underlying: Common Stock · 59.74 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031981 · wk-form4_1694464994.xml · derivative · entry 1

JASKA JAMES M · CIK 0001187147 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 789.62

Underlying: Common Stock · 38.81 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031979 · wk-form4_1694464903.xml · derivative · entry 1

Burbach Gerhard F · CIK 0001307313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514.97

Underlying: Common Stock · 36.64 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on five restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-031978 · wk-form4_1694464825.xml · derivative · entry 1

Bertsch Jan · CIK 0001477291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811.63

Underlying: Common Stock · 74.55 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on eight restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

SEC source: 0001628280-23-030979 · wk-form4_1693427716.xml · derivative · entry 3

DUFFY ROBERT L · CIK 0001554940 · SVP and Chief Admin. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,072

Underlying: Common Stock · 7,536 shares

Expires 2025-08-29

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Restricted stock units vest in three equal annual installments beginning August 29, 2023.

SEC source: 0001628280-23-030979 · wk-form4_1693427716.xml · nonDerivative · entry 2

DUFFY ROBERT L · CIK 0001554940 · SVP and Chief Admin. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,635

SEC source: 0001628280-23-030979 · wk-form4_1693427716.xml · nonDerivative · entry 1

DUFFY ROBERT L · CIK 0001554940 · SVP and Chief Admin. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,536

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-23-030135 · wk-form4_1692650779.xml · nonDerivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By XLR8 Holdings LLC

Disclosed balance after: 2,000

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-23-029575 · wk-form4_1692132269.xml · nonDerivative · entry 1

Burbach Gerhard F · CIK 0001307313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,391

SEC source: 0001628280-23-028258 · wk-form4_1691528164.xml · derivative · entry 3

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 709 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: RSUs vest in two equal annual installments beginning August 6, 2022.

F1 · derivative.expiration_date: RSUs vest in two equal annual installments beginning August 6, 2022.

SEC source: 0001628280-23-028258 · wk-form4_1691528164.xml · nonDerivative · entry 2

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,845

SEC source: 0001628280-23-028258 · wk-form4_1691528164.xml · nonDerivative · entry 1

LeMasters Robb A. · CIK 0001645808 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,164

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-23-021873 · wk-form4_1686602456.xml · derivative · entry 1

Melvin Leland D · CIK 0001780421 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58.42

Underlying: Common Stock · 17.76 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on two restricted stock unit grants of which the reporting person has elected to defer receipt of the shares underlying the RSUs. Each RSU and DER represent a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate.