{"transactions":[{"id":2314168,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2022-03-30T21:28:49.000Z","date":"2022-03-29","kind":"grant","acquired":true,"shares":100.06,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1774.02,"derivative":{"underlying":"Common Stock","underlying_shares":100.06},"source":{"system":"sec-edgar","filing":"0001645863-22-000013","document":"wf-form4_164867571369689.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164586322000013/wf-form4_164867571369689.xml","form_type":"4"}},{"id":2354231,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-03-03T22:54:03.000Z","date":"2022-03-02","kind":"sale","acquired":false,"shares":17172,"price":53.0297,"value":910626.0084,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":11215,"source":{"system":"sec-edgar","filing":"0001645863-22-000009","document":"wf-form4_164634801093530.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164586322000009/wf-form4_164634801093530.xml","form_type":"4"}},{"id":2354230,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-03-03T22:54:03.000Z","date":"2022-03-01","kind":"sale","acquired":false,"shares":20593,"price":54.0794,"value":1113657.0842,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."}],"balance_after":28387,"source":{"system":"sec-edgar","filing":"0001645863-22-000009","document":"wf-form4_164634801093530.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164586322000009/wf-form4_164634801093530.xml","form_type":"4"}},{"id":2473413,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2021-12-14T21:51:49.000Z","date":"2021-12-10","kind":"exercise","acquired":false,"shares":10,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":1673.96,"derivative":{"underlying":"Common Stock","underlying_shares":10},"source":{"system":"sec-edgar","filing":"0001645863-21-000003","document":"wf-form4_163951869664118.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164586321000003/wf-form4_163951869664118.xml","form_type":"4"}},{"id":2473412,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2021-12-14T21:51:49.000Z","date":"2021-12-10","kind":"grant","acquired":true,"shares":119.17,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSUs to which they relate."}],"balance_after":1683.96,"derivative":{"underlying":"Common Stock","underlying_shares":119.17},"source":{"system":"sec-edgar","filing":"0001645863-21-000003","document":"wf-form4_163951869664118.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164586321000003/wf-form4_163951869664118.xml","form_type":"4"}},{"id":2473411,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common 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restricted stock units which were deferred and paid out in one-fifth annual installments beginning December 1, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."}],"balance_after":3411,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1136},"source":{"system":"sec-edgar","filing":"0001645808-21-000004","document":"wf-form4_163856778301594.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000164580821000004/wf-form4_163856778301594.xml","form_type":"4"}},{"id":2485772,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN 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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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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.  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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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":1809.79,"derivative":{"underlying":"Common Stock","underlying_shares":99.55},"source":{"system":"sec-edgar","filing":"0001492627-21-000066","document":"wf-form4_163130739026653.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262721000066/wf-form4_163130739026653.xml","form_type":"4"}},{"id":2671876,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2021-06-11T21:01:25.000Z","date":"2021-06-09","kind":"grant","acquired":true,"shares":88.2,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":1710.24,"derivative":{"underlying":"Common Stock","underlying_shares":88.2},"source":{"system":"sec-edgar","filing":"0001492627-21-000046","document":"wf-form4_162344525598881.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262721000046/wf-form4_162344525598881.xml","form_type":"4"}},{"id":2732959,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-05-03T20:46:39.000Z","date":"2021-04-30","kind":"grant","acquired":true,"shares":1942,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"RSUs vested immediately.  The reporting person elected to defer receipt of shares underlying the RSUs.  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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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":1541.25,"derivative":{"underlying":"Common Stock","underlying_shares":6},"source":{"system":"sec-edgar","filing":"0001492627-20-000074","document":"wf-form4_160798751961389.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000074/wf-form4_160798751961389.xml","form_type":"4"}},{"id":2946547,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2020-12-14T23:12:16.000Z","date":"2020-12-10","kind":"grant","acquired":true,"shares":84.08,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":1547.25,"derivative":{"underlying":"Common Stock","underlying_shares":84.08},"source":{"system":"sec-edgar","filing":"0001492627-20-000074","document":"wf-form4_160798751961389.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000074/wf-form4_160798751961389.xml","form_type":"4"}},{"id":2946546,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common 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restricted stock units which were deferred and paid out in one-fifth annual installments beginning on December 1, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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."}],"balance_after":4547,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1136},"source":{"system":"sec-edgar","filing":"0001492627-20-000069","document":"wf-form4_160704310169778.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000069/wf-form4_160704310169778.xml","form_type":"4"}},{"id":2958365,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN 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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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."}],"balance_after":1045.17,"derivative":{"underlying":"Common Stock","underlying_shares":209},"source":{"system":"sec-edgar","filing":"0001492627-20-000069","document":"wf-form4_160704310169778.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000069/wf-form4_160704310169778.xml","form_type":"4"}},{"id":2958363,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-12-04T00:52:03.000Z","date":"2020-12-02","kind":"sale","acquired":false,"shares":24684,"price":56.45,"value":1393411.8,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":45578,"source":{"system":"sec-edgar","filing":"0001492627-20-000069","document":"wf-form4_160704310169778.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000069/wf-form4_160704310169778.xml","form_type":"4"}},{"id":2958362,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-12-04T00:52:03.000Z","date":"2020-12-01","kind":"sale","acquired":false,"shares":9700,"price":57.26,"value":555422.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."}],"balance_after":70262,"source":{"system":"sec-edgar","filing":"0001492627-20-000069","document":"wf-form4_160704310169778.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000069/wf-form4_160704310169778.xml","form_type":"4"}},{"id":2958361,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-12-04T00:52:03.000Z","date":"2020-12-01","kind":"exercise","acquired":true,"shares":3375,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":79962,"source":{"system":"sec-edgar","filing":"0001492627-20-000069","document":"wf-form4_160704310169778.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000069/wf-form4_160704310169778.xml","form_type":"4"}},{"id":3035518,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2020-09-09T21:08:01.000Z","date":"2020-09-08","kind":"grant","acquired":true,"shares":90.93,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1672.17,"derivative":{"underlying":"Common Stock","underlying_shares":90.93},"source":{"system":"sec-edgar","filing":"0001492627-20-000059","document":"wf-form4_159968565973428.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000059/wf-form4_159968565973428.xml","form_type":"4"}},{"id":3116276,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2020-06-09T21:24:09.000Z","date":"2020-06-08","kind":"grant","acquired":true,"shares":82.27,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1581.24,"derivative":{"underlying":"Common Stock","underlying_shares":82.27},"source":{"system":"sec-edgar","filing":"0001492627-20-000043","document":"wf-form4_159173783188756.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000043/wf-form4_159173783188756.xml","form_type":"4"}},{"id":3132106,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-05-28T20:47:53.000Z","date":"2020-05-27","kind":"sale","acquired":false,"shares":17242,"price":61.09,"value":1053313.78,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."}],"balance_after":76587,"source":{"system":"sec-edgar","filing":"0001492627-20-000040","document":"wf-form4_159069885593071.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000040/wf-form4_159069885593071.xml","form_type":"4"}},{"id":3154373,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-05-11T20:57:39.000Z","date":"2020-05-07","kind":"grant","acquired":true,"shares":2133,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."}],"balance_after":2133,"derivative":{"exercise_price":0,"expiration_date":"2020-03-02","underlying":"Common Stock","underlying_shares":2133},"source":{"system":"sec-edgar","filing":"0001492627-20-000028","document":"wf-form4_158923062843807.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000028/wf-form4_158923062843807.xml","form_type":"4"}},{"id":3193175,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2020-03-27T20:42:30.000Z","date":"2020-03-26","kind":"grant","acquired":true,"shares":98.71,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":1498.97,"derivative":{"underlying":"Common Stock","underlying_shares":98.71},"source":{"system":"sec-edgar","filing":"0001492627-20-000018","document":"wf-form4_158534172795545.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000018/wf-form4_158534172795545.xml","form_type":"4"}},{"id":3232212,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-03-03T22:46:35.000Z","date":"2020-03-02","kind":"tax_withholding","acquired":false,"shares":7892,"price":55.47,"value":437769.24,"ownership":{"direct":true},"balance_after":93829,"source":{"system":"sec-edgar","filing":"0001492627-20-000011","document":"wf-form4_158327557810298.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000011/wf-form4_158327557810298.xml","form_type":"4"}},{"id":3232211,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-03-03T22:46:35.000Z","date":"2020-03-02","kind":"grant","acquired":true,"shares":23226,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":101721,"source":{"system":"sec-edgar","filing":"0001492627-20-000011","document":"wf-form4_158327557810298.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262720000011/wf-form4_158327557810298.xml","form_type":"4"}},{"id":3338932,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2019-12-17T21:46:11.000Z","date":"2019-12-13","kind":"grant","acquired":true,"shares":68.36,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1400.26,"derivative":{"underlying":"Common Stock","underlying_shares":68.36},"source":{"system":"sec-edgar","filing":"0001492627-19-000063","document":"wf-form4_157661915426359.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000063/wf-form4_157661915426359.xml","form_type":"4"}},{"id":3418515,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2019-09-10T20:38:57.000Z","date":"2019-09-06","kind":"grant","acquired":true,"shares":70.77,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1331.9,"derivative":{"underlying":"Common Stock","underlying_shares":70.77},"source":{"system":"sec-edgar","filing":"0001492627-19-000050","document":"wf-form4_156814790476560.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000050/wf-form4_156814790476560.xml","form_type":"4"}},{"id":3441052,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-08-12T20:35:09.000Z","date":"2019-08-08","kind":"sale","acquired":false,"shares":60000,"price":57.15,"value":3429000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"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."}],"balance_after":78495,"source":{"system":"sec-edgar","filing":"0001492627-19-000044","document":"wf-form4_156564209232691.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000044/wf-form4_156564209232691.xml","form_type":"4"}},{"id":3497199,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2019-06-07T20:32:50.000Z","date":"2019-06-06","kind":"grant","acquired":true,"shares":87.4,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1261.13,"derivative":{"underlying":"Common Stock","underlying_shares":87.4},"source":{"system":"sec-edgar","filing":"0001492627-19-000036","document":"wf-form4_155993955548779.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000036/wf-form4_155993955548779.xml","form_type":"4"}},{"id":3526036,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-05-15T20:58:51.000Z","date":"2019-05-14","kind":"grant","acquired":true,"shares":2452,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":2452,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2452},"source":{"system":"sec-edgar","filing":"0001492627-19-000026","document":"wf-form4_155795391672457.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000026/wf-form4_155795391672457.xml","form_type":"4"}},{"id":3571910,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2019-04-01T20:50:26.000Z","date":"2019-03-28","kind":"grant","acquired":true,"shares":76.8,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1173.73,"derivative":{"underlying":"Common Stock","underlying_shares":76.8},"source":{"system":"sec-edgar","filing":"0001492627-19-000017","document":"wf-form4_155415181089973.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000017/wf-form4_155415181089973.xml","form_type":"4"}},{"id":3612386,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-03-05T23:39:17.000Z","date":"2019-03-01","kind":"tax_withholding","acquired":false,"shares":15881,"price":51.76,"value":822000.56,"ownership":{"direct":true},"balance_after":129020,"source":{"system":"sec-edgar","filing":"0001492627-19-000004","document":"wf-form4_155182914266827.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000004/wf-form4_155182914266827.xml","form_type":"4"}},{"id":3612385,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-03-05T23:39:17.000Z","date":"2019-03-01","kind":"grant","acquired":true,"shares":41364,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"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."}],"balance_after":144901,"source":{"system":"sec-edgar","filing":"0001492627-19-000004","document":"wf-form4_155182914266827.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262719000004/wf-form4_155182914266827.xml","form_type":"4"}},{"id":3729069,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2018-12-17T21:36:34.000Z","date":"2018-12-13","kind":"grant","acquired":true,"shares":84.34,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1096.93,"derivative":{"underlying":"Common Stock","underlying_shares":84.34},"source":{"system":"sec-edgar","filing":"0001492627-18-000047","document":"wf-form4_154508257718675.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262718000047/wf-form4_154508257718675.xml","form_type":"4"}},{"id":3743570,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock 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granted restricted stock units which were deferred and paid out on December 1, 2018."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On February 29, 2016, the reporting person was granted restricted stock units which were deferred and paid out on December 1, 2018."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":13752},"source":{"system":"sec-edgar","filing":"0001199539-18-000001","document":"wf-form4_154395901689692.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953918000001/wf-form4_154395901689692.xml","form_type":"4"}},{"id":3743568,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN 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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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":1012.59,"derivative":{"underlying":"Common Stock","underlying_shares":57.65},"source":{"system":"sec-edgar","filing":"0001492627-18-000035","document":"wf-form4_153669953696584.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262718000035/wf-form4_153669953696584.xml","form_type":"4"}},{"id":3899961,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Dividend Equivalent Rights","published_at":"2018-06-08T20:23:49.000Z","date":"2018-06-06","kind":"grant","acquired":true,"shares":52.53,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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. 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Each RSU and DER represent a contingent right to receive one share of BWXT common stock.  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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."}],"balance_after":1802,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1802},"source":{"system":"sec-edgar","filing":"0001492627-18-000007","document":"wf-form4_152607329685770.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149262718000007/wf-form4_152607329685770.xml","form_type":"4"}},{"id":3976415,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2018-04-02T20:41:28.000Z","date":"2018-03-29","kind":"grant","acquired":true,"shares":51.06,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":902.41,"derivative":{"underlying":"Common Stock","underlying_shares":51.06},"source":{"system":"sec-edgar","filing":"0001492520-18-000019","document":"wf-form4_152270164966967.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252018000019/wf-form4_152270164966967.xml","form_type":"4"}},{"id":4010937,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Units","published_at":"2018-03-06T22:20:31.000Z","date":"2018-03-02","kind":"exercise","acquired":false,"shares":3845,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Restricted stock units vest in three equal annual installments beginning March 2, 2018. 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On March 1, 2018, 4,752 restricted stock units vested and 173 of those shares were withheld to fulfill tax obligations."}],"balance_after":173,"derivative":{"exercise_price":0,"expiration_date":"2019-03-01","underlying":"Common Stock","underlying_shares":173},"source":{"system":"sec-edgar","filing":"0001492520-18-000004","document":"wf-form4_152028724488646.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252018000004/wf-form4_152028724488646.xml","form_type":"4"}},{"id":4015120,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2018-03-05T22:00:59.000Z","date":"2018-03-01","kind":"tax_withholding","acquired":false,"shares":173,"price":63.56,"value":10995.88,"ownership":{"direct":true},"balance_after":66466,"source":{"system":"sec-edgar","filing":"0001492520-18-000004","document":"wf-form4_152028724488646.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252018000004/wf-form4_152028724488646.xml","form_type":"4"}},{"id":4015119,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2018-03-05T22:00:59.000Z","date":"2018-03-01","kind":"exercise","acquired":true,"shares":173,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":66639,"source":{"system":"sec-edgar","filing":"0001492520-18-000004","document":"wf-form4_152028724488646.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252018000004/wf-form4_152028724488646.xml","form_type":"4"}},{"id":4131706,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2017-12-14T21:21:59.000Z","date":"2017-12-13","kind":"grant","acquired":true,"shares":36.74,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 RSU's to which they relate."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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 RSU's to which they relate."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 RSU's to which they relate."}],"balance_after":851.35,"derivative":{"underlying":"Common Stock","underlying_shares":36.74},"source":{"system":"sec-edgar","filing":"0001492520-17-000053","document":"wf-form4_151328650289819.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252017000053/wf-form4_151328650289819.xml","form_type":"4"}},{"id":4162155,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2017-11-15T18:17:22.000Z","date":"2017-11-14","kind":"sale","acquired":false,"shares":21453,"price":60.21,"value":1291685.13,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price in Column 4 is a weighted average price. These shares were sold at prices ranging from $60.00 to $60.37 per share.  The reporting person undertakes to provide upon request to the SEC staff, the issuer or security holders of issuer information regarding the number of shares and prices at which the transaction was affected."}],"balance_after":66466,"source":{"system":"sec-edgar","filing":"0001199539-17-000006","document":"wf-form4_151076982881666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000006/wf-form4_151076982881666.xml","form_type":"4"}},{"id":4162154,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2017-11-15T18:17:22.000Z","date":"2017-11-13","kind":"gift","acquired":false,"shares":12421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reporting person transferred shares to The Greeley Charitable Trust of which the reporting person, his spouse and his daughter are the sole trustees."}],"balance_after":87919,"source":{"system":"sec-edgar","filing":"0001199539-17-000006","document":"wf-form4_151076982881666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000006/wf-form4_151076982881666.xml","form_type":"4"}},{"id":4211636,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2017-09-12T20:17:02.000Z","date":"2017-09-08","kind":"grant","acquired":true,"shares":41.31,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":814.61,"derivative":{"underlying":"Common Stock","underlying_shares":41.31},"source":{"system":"sec-edgar","filing":"0001492520-17-000045","document":"wf-form4_150524740896686.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252017000045/wf-form4_150524740896686.xml","form_type":"4"}},{"id":4288364,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2017-06-08T13:45:32.000Z","date":"2017-06-06","kind":"grant","acquired":true,"shares":45.88,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":773.3,"derivative":{"underlying":"Common Stock","underlying_shares":45.88},"source":{"system":"sec-edgar","filing":"0001492520-17-000033","document":"wf-form4_149692951425713.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252017000033/wf-form4_149692951425713.xml","form_type":"4"}},{"id":4366939,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2017-03-31T15:28:39.000Z","date":"2017-03-29","kind":"grant","acquired":true,"shares":38.07,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 RSU's. 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In accordance with the deferral election, the DERs will be delivered to the reporting person proportionately with the RSU's to which they relate."}],"balance_after":727.42,"derivative":{"underlying":"Common Stock","underlying_shares":38.07},"source":{"system":"sec-edgar","filing":"0001199539-17-000003","document":"wf-form4_149097410497364.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000003/wf-form4_149097410497364.xml","form_type":"4"}},{"id":4404251,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Unit","published_at":"2017-03-03T21:14:27.000Z","date":"2017-03-02","kind":"grant","acquired":true,"shares":11535,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"RSUs vest in three equal installments beginning March 2, 2018."}],"balance_after":11712,"derivative":{"exercise_price":0,"expiration_date":"2019-03-01","underlying":"Common Stock","underlying_shares":11535},"source":{"system":"sec-edgar","filing":"0001199539-17-000002","document":"wf-form4_148857564507666.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000002/wf-form4_148857564507666.xml","form_type":"4"}},{"id":4404250,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Unit","published_at":"2017-03-03T21:14:27.000Z","date":"2017-03-01","kind":"exercise","acquired":true,"shares":177,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Reporting Person elected to defer receipt of all shares underlying the restricted stock units.  On March 1, 2017, 4,752 restricted stock units vested and 177 of those shares were withheld to fulfill tax obligations."}],"balance_after":177,"derivative":{"exercise_price":0,"expiration_date":"2019-03-01","underlying":"Common Stock","underlying_shares":177},"source":{"system":"sec-edgar","filing":"0001199539-17-000002","document":"wf-form4_148857564507666.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000002/wf-form4_148857564507666.xml","form_type":"4"}},{"id":4404249,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2017-03-03T21:14:27.000Z","date":"2017-03-01","kind":"tax_withholding","acquired":false,"shares":177,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":100340,"source":{"system":"sec-edgar","filing":"0001199539-17-000002","document":"wf-form4_148857564507666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000002/wf-form4_148857564507666.xml","form_type":"4"}},{"id":4404248,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2017-03-03T21:14:27.000Z","date":"2017-03-01","kind":"exercise","acquired":true,"shares":177,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":100517,"source":{"system":"sec-edgar","filing":"0001199539-17-000002","document":"wf-form4_148857564507666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000119953917000002/wf-form4_148857564507666.xml","form_type":"4"}},{"id":4520564,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2016-12-15T16:40:52.000Z","date":"2016-12-13","kind":"grant","acquired":true,"shares":36.05,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":678.85,"derivative":{"underlying":"Common Stock","underlying_shares":36.05},"source":{"system":"sec-edgar","filing":"0001492520-16-000124","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000149252016000124/edgar.xml","form_type":"4"}},{"id":4604352,"issuer":{"id":656,"kind":"organization","name":"BWX Technologies, Inc.","symbol":"BWXT"},"owners":[{"id":128628,"kind":"person","name":"FEES JOHN A","position":1,"cik":"0001199539","reported_name":"FEES JOHN A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Dividend Equivalent Rights","published_at":"2016-09-13T14:52:49.000Z","date":"2016-09-09","kind":"grant","acquired":true,"shares":46,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":642.8,"derivative":{"underlying":"Common Stock","underlying_shares":46},"source":{"system":"sec-edgar","filing":"0001408482-16-000009","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1486957/000140848216000009/edgar.xml","form_type":"4"}}]}