FEES JOHN A

SEC source: 0001645863-22-000013 · wf-form4_164867571369689.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,774.02

Underlying: Common Stock · 100.06 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on nine 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 nine 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 nine 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: 0001645863-22-000009 · wf-form4_164634801093530.xml · nonDerivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,215

F2 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.00 to $53.11, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001645863-22-000009 · wf-form4_164634801093530.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,387

F1 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.00 to $54.29, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001645863-21-000003 · wf-form4_163951869664118.xml · derivative · entry 3

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,673.96

Underlying: Common Stock · 10 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_price: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's deferral election to receive shares on December 1, 2021 occurred between the company's fourth quarter 2021 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2021, the dividend payment date.

F2 · derivative.exercise_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's deferral election to receive shares on December 1, 2021 occurred between the company's fourth quarter 2021 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2021, the dividend payment date.

F2 · derivative.expiration_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's deferral election to receive shares on December 1, 2021 occurred between the company's fourth quarter 2021 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2021, the dividend payment date.

SEC source: 0001645863-21-000003 · wf-form4_163951869664118.xml · derivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,683.96

Underlying: Common Stock · 119.17 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on nine 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 nine 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 nine 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: 0001645863-21-000003 · wf-form4_163951869664118.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,980

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: 0001645808-21-000004 · wf-form4_163856778301594.xml · derivative · entry 5

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,130

Underlying: Common Stock · 1,044 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.

F4 · derivative.exercise_date: On May 10, 2013, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

F4 · derivative.expiration_date: On May 10, 2013, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

SEC source: 0001645808-21-000004 · wf-form4_163856778301594.xml · derivative · entry 4

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,411

Underlying: Common Stock · 1,136 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.

F3 · derivative.exercise_date: On May 14, 2012, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

F3 · derivative.expiration_date: On May 14, 2012, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

SEC source: 0001645808-21-000004 · wf-form4_163856778301594.xml · derivative · entry 3

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,963

Underlying: Common Stock · 987 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: On May 12, 2011, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

F2 · derivative.expiration_date: On May 12, 2011, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

SEC source: 0001645808-21-000004 · wf-form4_163856778301594.xml · derivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,564.79

Underlying: Common Stock · 245 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_price: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2021.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2021.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2021.

SEC source: 0001645808-21-000004 · wf-form4_163856778301594.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,990

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: 0001492627-21-000066 · wf-form4_163130739026653.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,809.79

Underlying: Common Stock · 99.55 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

SEC source: 0001492627-21-000046 · wf-form4_162344525598881.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,710.24

Underlying: Common Stock · 88.2 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on nine 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 RSU's to which they relate.

SEC source: 0001492627-21-000033 · wf-form4_162007478287379.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,942

Underlying: Common Stock · 1,942 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 his deferral election, vested shares will be delivered to the reporting person in one lump sum 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 his deferral election, vested shares will be delivered to the reporting person in one lump sum following termination of service on the Board of Directors.

SEC source: 0001492627-21-000025 · wf-form4_161705131694958.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,622.04

Underlying: Common Stock · 80.79 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 RSU's 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 RSU's 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 RSU's to which they relate.

SEC source: 0001492627-20-000074 · wf-form4_160798751961389.xml · derivative · entry 3

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,541.25

Underlying: Common Stock · 6 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_price: The dividend equivalent rights (DER) accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's December 1, 2020 deferral election occurred between the company's fourth quarter 2020 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2020, the dividend payment date.

F2 · derivative.exercise_date: The dividend equivalent rights (DER) accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's December 1, 2020 deferral election occurred between the company's fourth quarter 2020 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2020, the dividend payment date.

F2 · derivative.expiration_date: The dividend equivalent rights (DER) accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. Since the reporting person's December 1, 2020 deferral election occurred between the company's fourth quarter 2020 dividend record and payment dates, the DERs for this dividend payment were delivered to the reporting person on December 10, 2020, the dividend payment date.

SEC source: 0001492627-20-000074 · wf-form4_160798751961389.xml · derivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,547.25

Underlying: Common Stock · 84.08 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 RSU's 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 RSU's 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 RSU's to which they relate.

SEC source: 0001492627-20-000074 · wf-form4_160798751961389.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,584

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: 0001492627-20-000069 · wf-form4_160704310169778.xml · nonDerivative · entry 3

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,578

F2 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.09 to $56.82, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · derivative · entry 7

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,174

Underlying: Common Stock · 1,043 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.

F6 · derivative.exercise_date: On May 10, 2013, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

F6 · derivative.expiration_date: On May 10, 2013, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · derivative · entry 6

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,547

Underlying: Common Stock · 1,136 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.

F5 · derivative.exercise_date: On May 14, 2012, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning on December 1, 2020.

F5 · derivative.expiration_date: On May 14, 2012, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning on December 1, 2020.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · derivative · entry 5

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,950

Underlying: Common Stock · 987 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.

F4 · derivative.exercise_date: On May 12, 2011, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

F4 · derivative.expiration_date: On May 12, 2011, the reporting person was granted restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · derivative · entry 4

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,045.17

Underlying: Common Stock · 209 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.

F3 · derivative.exercise_price: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2020.

F3 · derivative.exercise_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2020.

F3 · derivative.expiration_date: The dividend equivalent rights accrued on the restricted stock unit grants of which the reporting person deferred receipt of the shares underlying the RSU. Each DER represents a contingent right to receive one share of BWXT common stock. In accordance with the deferral election, the DERs were delivered to the reporting person on December 1, 2020.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · nonDerivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,262

F1 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.02 to $57.61, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001492627-20-000069 · wf-form4_160704310169778.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,962

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: 0001492627-20-000059 · wf-form4_159968565973428.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,672.17

Underlying: Common Stock · 90.93 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 RSU's 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 RSU's 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 RSU's to which they relate.

SEC source: 0001492627-20-000043 · wf-form4_159173783188756.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,581.24

Underlying: Common Stock · 82.27 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 RSU's 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 RSU's 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 RSU's to which they relate.

SEC source: 0001492627-20-000040 · wf-form4_159069885593071.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,587

F1 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.07 to $61.74, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001492627-20-000028 · wf-form4_158923062843807.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,133

Underlying: Common Stock · 2,133 shares

Expires 2020-03-02

F1 · kind: Grant of restricted stock units pursuant to the BWX Technologies, Inc. 2020 Omnibus Incentive Plan. 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 his deferral election, vested shares will be delivered in one lump sum to the reporting person upon the earlier of January 1, 2024 or following termination of service on the Board of Directors.

SEC source: 0001492627-20-000018 · wf-form4_158534172795545.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,498.97

Underlying: Common Stock · 98.71 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

SEC source: 0001492627-20-000011 · wf-form4_158327557810298.xml · nonDerivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,829

SEC source: 0001492627-20-000011 · wf-form4_158327557810298.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,721

F1 · kind: Represents performance restricted stock units ("PRSU") awarded on March 2, 2017 for the performance period January 1, 2017 through December 31, 2019, for which performance goals have been achieved and certified on February 21, 2020. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on March 2, 2020.

SEC source: 0001492627-19-000063 · wf-form4_157661915426359.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,400.26

Underlying: Common Stock · 68.36 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

SEC source: 0001492627-19-000050 · wf-form4_156814790476560.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,331.9

Underlying: Common Stock · 70.77 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

SEC source: 0001492627-19-000044 · wf-form4_156564209232691.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,495

F1 · price: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.66 to $57.68, inclusive. The reporting person undertakes to provide to BWX Technologies, Inc., any security holder of BWX Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Since the date of the reporting person's last report, 9,475 shares previously owned through the BWX Technologies, Inc. 401(k) plan were rolled over into a self-directed IRA and therefore are now owned directly.

SEC source: 0001492627-19-000036 · wf-form4_155993955548779.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,261.13

Underlying: Common Stock · 87.4 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on seven 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 RSU's to which they relate.

SEC source: 0001492627-19-000026 · wf-form4_155795391672457.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,452

Underlying: Common Stock · 2,452 shares

Expires not disclosed

F1 · kind: 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.

F2 · derivative.exercise_date: RSUs vested immediately. The reporting person elected to defer receipt of shares underlying the RSUs. In accordance with his deferral election, vested shares will be delivered to the reporting person in one lump sum 12 months 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 his deferral election, vested shares will be delivered to the reporting person in one lump sum 12 months following termination of service on the Board of Directors.

SEC source: 0001492627-19-000017 · wf-form4_155415181089973.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173.73

Underlying: Common Stock · 76.8 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

SEC source: 0001492627-19-000004 · wf-form4_155182914266827.xml · nonDerivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,020

SEC source: 0001492627-19-000004 · wf-form4_155182914266827.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,901

F1 · acquired: Represents performance restricted stock units ("PRSU") awarded on February 29, 2016 for the performance period January 1, 2016 through December 31, 2018, for which performance goals have been achieved and certified on February 28, 2019. Each PRSU represents the right to one share of the issuer's common stock. The PRSUs vested on March 1, 2019.

SEC source: 0001492627-18-000047 · wf-form4_154508257718675.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,096.93

Underlying: Common Stock · 84.34 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

SEC source: 0001199539-18-000001 · wf-form4_154395901689692.xml · derivative · entry 6

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,160 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.

F5 · derivative.exercise_date: On March 2, 2017, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

F5 · derivative.expiration_date: On March 2, 2017, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

SEC source: 0001199539-18-000001 · wf-form4_154395901689692.xml · derivative · entry 5

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,752 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.

F4 · derivative.exercise_date: On February 29, 2016, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

F4 · derivative.expiration_date: On February 29, 2016, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

SEC source: 0001199539-18-000001 · wf-form4_154395901689692.xml · derivative · entry 4

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 39,243 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.

F3 · derivative.exercise_date: On July 1, 2015, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

F3 · derivative.expiration_date: On July 1, 2015, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018.

SEC source: 0001199539-18-000001 · wf-form4_154395901689692.xml · nonDerivative · entry 2

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,537

SEC source: 0001199539-18-000001 · wf-form4_154395901689692.xml · nonDerivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,621

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 · shares: Restricted stock units convert into common stock on a one-for-one basis.

SEC source: 0001492627-18-000035 · wf-form4_153669953696584.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,012.59

Underlying: Common Stock · 57.65 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

SEC source: 0001348049-18-000002 · wf-form4_152848941114951.xml · derivative · entry 1

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 954.94

Underlying: Common Stock · 52.53 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.exercise_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

F1 · derivative.expiration_date: The dividend equivalent rights accrued on six 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 RSU's to which they relate.

SEC source: 0001492627-18-000016 · wf-form4_152641698627599.xml · derivative · entry 5

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,160

Underlying: Common Stock · 250 shares

Expires 2020-03-02

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: RSUs vested on May 12, 2018. The Reporting Person elected to defer receipt of the shares underlying the RSUs until six months after his termination of employment with the Company. The Reporting Person continues to serve as a director of the Company.

SEC source: 0001492627-18-000016 · wf-form4_152641698627599.xml · derivative · entry 4

FEES JOHN A · CIK 0001199539 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,752

Underlying: Common Stock · 154 shares

Expires 2019-03-01

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: RSUs vested on May 12, 2018. The Reporting Person elected to defer receipt of the shares underlying the RSUs until six months after his termination of employment with the Company. The Reporting Person continues to serve as a director of the Company.