NARDELLI ROBERT L

SEC source: 0001628280-25-015982 · wk-form4_1743542561.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,420.8

Underlying: Common Stock · 77.04 shares

Expires not disclosed

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

SEC source: 0001628280-24-051072 · wk-form4_1734041453.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,343.76

Underlying: Common Stock · 59.98 shares

Expires not disclosed

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

SEC source: 0001628280-24-039893 · wk-form4_1725914481.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,283.78

Underlying: Common Stock · 74.87 shares

Expires not disclosed

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

SEC source: 0001628280-24-027548 · wk-form4_1718052377.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,208.91

Underlying: Common Stock · 81.22 shares

Expires not disclosed

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

SEC source: 0001628280-24-021158 · wk-form4_1715114809.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,592

Underlying: Common Stock · 1,592 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: 0001628280-24-014108 · wk-form4_1712005178.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,127.69

Underlying: Common Stock · 67.07 shares

Expires not disclosed

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

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

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

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

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,060.62

Underlying: Common Stock · 82.26 shares

Expires not disclosed

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

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

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

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

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,978.36

Underlying: Common Stock · 89.81 shares

Expires not disclosed

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

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

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

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

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By XLR8 Holdings LLC

Disclosed balance after: 2,000

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

SEC source: 0001628280-23-021874 · wk-form4_1686602531.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,888.55

Underlying: Common Stock · 101.1 shares

Expires not disclosed

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

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

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

SEC source: 0000899243-23-012782 · doc4.xml · nonDerivative · entry 2

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 370,951

F2 · security: Represents shares of Class A Common Stock underlying RSUs issued under the Incentive Plan to the Reporting Person in lieu of cash retainer fees payable for service on the Issuer's Board and any committees thereof. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the first anniversary of the grant date.

F3 · shares: This transaction is being reported late due to inadvertent administrative error.

F2 · price: Represents shares of Class A Common Stock underlying RSUs issued under the Incentive Plan to the Reporting Person in lieu of cash retainer fees payable for service on the Issuer's Board and any committees thereof. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the first anniversary of the grant date.

SEC source: 0000899243-23-012782 · doc4.xml · nonDerivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,777

F1 · security: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time (the "Incentive Plan"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the earlier of (i) the first anniversary of the grant date, and (ii) the day before Issuer's 2024 annual meeting of stockholders, subject to the Reporting Person remaining in service as a member of the Issuer's Board of Directors (the "Board") through such vesting date.

F3 · shares: This transaction is being reported late due to inadvertent administrative error.

F1 · price: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time (the "Incentive Plan"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the earlier of (i) the first anniversary of the grant date, and (ii) the day before Issuer's 2024 annual meeting of stockholders, subject to the Reporting Person remaining in service as a member of the Issuer's Board of Directors (the "Board") through such vesting date.

SEC source: 0001961247-23-000028 · wf-form4_168331949082654.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,391

Underlying: Common Stock · 2,391 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: 0001961247-23-000021 · wf-form4_168012361817766.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,787.45

Underlying: Common Stock · 95.75 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: 0001910103-22-000010 · wf-form4_167114165295527.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,691.7

Underlying: Common Stock · 95 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: 0000899243-22-033312 · doc4.xml · derivative · entry 2

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,397

Underlying: Class A Common Stock · 19,396 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 · security: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. 19,396 RSUs vested on October 1, 2022 and 19,397 will vest October 1, 2023, subject to continued service through the applicable vesting date.

F1 · derivative.exercise_price: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. 19,396 RSUs vested on October 1, 2022 and 19,397 will vest October 1, 2023, subject to continued service through the applicable vesting date.

F1 · derivative.exercise_date: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. 19,396 RSUs vested on October 1, 2022 and 19,397 will vest October 1, 2023, subject to continued service through the applicable vesting date.

F1 · derivative.expiration_date: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. 19,396 RSUs vested on October 1, 2022 and 19,397 will vest October 1, 2023, subject to continued service through the applicable vesting date.

SEC source: 0000899243-22-033312 · doc4.xml · nonDerivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,470

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: 0001645863-22-000041 · wf-form4_166275644456465.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,596.7

Underlying: Common Stock · 106.8 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: 0001645863-22-000031 · wf-form4_165480823214472.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,489.9

Underlying: Common Stock · 109.21 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: 0001645863-22-000023 · wf-form4_165179128995681.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,561

Underlying: Common Stock · 2,561 shares

Expires not disclosed

F1 · derivative.exercise_date: 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.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: 0000899243-22-015337 · doc4.xml · nonDerivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,074

F1 · security: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the earlier of (i) the first anniversary of the grant date, and (ii) the day before Issuer's 2023 annual meeting of stockholders, subject to the Reporting Person remaining in service as a member of the Issuer's board of directors through such vesting date.

F1 · price: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time. Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vest on the earlier of (i) the first anniversary of the grant date, and (ii) the day before Issuer's 2023 annual meeting of stockholders, subject to the Reporting Person remaining in service as a member of the Issuer's board of directors through such vesting date.

SEC source: 0001645863-22-000016 · wf-form4_164867604451662.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,380.69

Underlying: Common Stock · 93.53 shares

Expires not disclosed

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

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

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

SEC source: 0000899243-23-012780 · doc4.xml · nonDerivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,293

F1 · security: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time (the "Incentive Plan"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vested in connection with the filing of the Issuer's Registration Statement on Form S-8.

F1 · price: Represents shares of Class A Common Stock underlying Restricted Stock Units ("RSUs") issued under the Fathom Digital Manufacturing Corporation 2021 Omnibus Incentive Plan, as amended and/or restated from time to time (the "Incentive Plan"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs vested in connection with the filing of the Issuer's Registration Statement on Form S-8.

SEC source: 0001645863-21-000006 · wf-form4_163951939730787.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,287.16

Underlying: Common Stock · 100.41 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-21-000069 · wf-form4_163130764400335.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,186.75

Underlying: Common Stock · 83.88 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-21-000049 · wf-form4_162344561017920.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,102.87

Underlying: Common Stock · 74.31 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-21-000037 · wf-form4_162007553797271.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · 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 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: RSU's vested immediately. The reporting person elected to defer receipt of shares underlying the RSU's. 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: RSU's vested immediately. The reporting person elected to defer receipt of shares underlying the RSU's. 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: 0001492627-21-000028 · wf-form4_161705160098532.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,028.56

Underlying: Common Stock · 67.1 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-20-000078 · wf-form4_160798783675862.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 961.46

Underlying: Common Stock · 63.14 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-20-000062 · wf-form4_159968599047033.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 898.32

Underlying: Common Stock · 68.29 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-20-000047 · wf-form4_159173820669241.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 830.03

Underlying: Common Stock · 61.78 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-20-000033 · wf-form4_158923122098670.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,133

Underlying: Common Stock · 2,133 shares

Expires not disclosed

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: RSU's vested immediately. The reporting person elected to defer receipt of shares underlying the RSU's. 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: RSU's vested immediately. The reporting person elected to defer receipt of shares underlying the RSU's. 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: 0001492627-20-000023 · wf-form4_158534221399950.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 768.25

Underlying: Common Stock · 72.06 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-19-000067 · wf-form4_157661946714470.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 696.19

Underlying: Common Stock · 49.9 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-19-000055 · wf-form4_156814838815599.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 646.29

Underlying: Common Stock · 51.65 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-19-000040 · wf-form4_155993996135218.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 594.64

Underlying: Common Stock · 63.79 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 RSUs 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 RSUs 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 RSUs to which they relate.

SEC source: 0001492627-19-000030 · wf-form4_155795440494459.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · 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 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: 0001492627-19-000022 · wf-form4_155415263477933.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 530.85

Underlying: Common Stock · 53.77 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-18-000053 · wf-form4_154508317034106.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 477.08

Underlying: Common Stock · 59.06 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-18-000041 · wf-form4_153670013856193.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 418.02

Underlying: Common Stock · 40.38 shares

Expires not disclosed

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

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

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

SEC source: 0001348049-18-000007 · wf-form4_152848991344347.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 377.64

Underlying: Common Stock · 36.79 shares

Expires not disclosed

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

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

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

SEC source: 0001492627-18-000013 · wf-form4_152607386360830.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,802

Underlying: Common Stock · 1,802 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 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: 0001492520-18-000024 · wf-form4_152270207208716.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340.85

Underlying: Common Stock · 34.4 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on four 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 four 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 four 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: 0001492520-17-000058 · wf-form4_151328691189883.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306.45

Underlying: Common Stock · 24.76 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on four 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 four 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 four 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: 0001492520-17-000050 · wf-form4_150524791588610.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281.69

Underlying: Common Stock · 27.82 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on four 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 four 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 four 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: 0001492520-17-000038 · wf-form4_149692996952364.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253.87

Underlying: Common Stock · 30.92 shares

Expires not disclosed

F1 · derivative.exercise_price: The dividend equivalent rights accrued on four 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 four 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 four 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: 0001492520-17-000025 · wf-form4_149427643727436.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,396

Underlying: Common Stock · 2,396 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 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: 0001492520-17-000016 · wf-form4_149097773290362.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 222.95

Underlying: Common Stock · 21.12 shares

Expires not disclosed

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

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

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

SEC source: 0001492520-16-000129 · edgar.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201.83

Underlying: Common Stock · 25.82 shares

Expires not disclosed

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

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

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

SEC source: 0001408482-16-000006 · edgar.xml · derivative · entry 1

NARDELLI ROBERT L · CIK 0001195005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176.01

Underlying: Common Stock · 25.51 shares

Expires not disclosed

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

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

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