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BWX Technologies (BWXT) executive reports RSU vesting and tax withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

BWX Technologies, Inc. executive Joseph Kirwan Miller reported routine equity compensation activity. He acquired 237 shares of common stock through the vesting and conversion of Restricted Stock Units and had 106 shares withheld in a tax-withholding disposition at a reference price of $194.65 per share. After these transactions, he directly holds 5,348 common shares, while 474 RSUs remain outstanding and are scheduled to vest in three equal annual installments beginning July 1, 2026.

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Insider Miller Joseph Kirwan
Role Pres., Government Operations
Type Security Shares Price Value
Exercise Restricted Stock Units 237 $0.00 --
Exercise Common Stock 237 $0.00 --
Tax Withholding Common Stock 106 $194.65 $21K
Holdings After Transaction: Restricted Stock Units — 474 shares (Direct, null); Common Stock — 5,348 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Tax-withholding shares 106 shares Common Stock delivered for tax obligations at $194.65 per share
RSU-derived shares 237 shares Common Stock acquired via exercise/conversion of Restricted Stock Units
Post-transaction common shares 5,348 shares Direct BWXT common stock holdings after transactions
Remaining RSUs 474 units Restricted Stock Units outstanding after the reported conversion
Tax-withholding reference price $194.65 per share Price used in the tax-withholding disposition of 106 shares
Restricted Stock Units financial
"security_title": "Restricted Stock Units""
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative exercise/conversion financial
"transaction_action": "derivative exercise/conversion""
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
RSUs vest in three equal annual installments financial
"RSUs vest in three equal annual installments beginning July 1, 2026."
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Miller Joseph Kirwan
(Last)(First)(Middle)
1720 MT. ATHOS ROAD
(Street)
LYNCHBURG VIRGINIA 24504
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
BWX Technologies, Inc. [ BWXT ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Pres., Government Operations
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/01/2026M237A$05,348D
Common Stock07/01/2026F106D$194.655,242D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$007/01/2026M237 (1) (1)Common Stock237$0474D
Explanation of Responses:
1. RSUs vest in three equal annual installments beginning July 1, 2026.
/s/ Joseph K. Miller by Alexander D. Cobey, attorney-in-fact07/02/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did BWXT executive Joseph Kirwan Miller report?

He reported routine equity compensation activity, including 237 BWXT common shares acquired from Restricted Stock Units and 106 shares used in a tax-withholding disposition. These transactions reflect RSU vesting rather than open-market buying or selling.

Did Joseph Kirwan Miller buy or sell BWXT shares on the open market?

The filing shows no open-market purchases or sales. Shares were acquired through RSU vesting and a derivative exercise, while 106 shares were withheld to cover tax obligations, a non-market transaction handled by the issuer.

How many BWXT shares does Joseph Kirwan Miller hold after these transactions?

Following the reported Form 4 transactions, he directly holds 5,348 shares of BWX Technologies common stock. This figure reflects the net result after RSU conversion to shares and the tax-withholding disposition of 106 shares on the same date.

What Restricted Stock Unit position does Joseph Kirwan Miller retain at BWXT?

After the RSU conversion, he retains 474 Restricted Stock Units. According to the filing footnote, these RSUs are scheduled to vest in three equal annual installments beginning July 1, 2026, providing ongoing equity-based compensation.

What does the tax-withholding disposition in the BWXT Form 4 mean?

The tax-withholding disposition reflects 106 shares delivered to cover tax liabilities tied to equity compensation. It is coded as an F transaction and does not represent an open-market sale but a standard mechanism for paying required taxes.

How many derivative exercises were reported in this BWXT Form 4?

The filing shows one derivative exercise transaction involving 237 Restricted Stock Units converting into an equal number of BWXT common shares. This is a compensation-related event, recorded with transaction code M and a transaction price per share of $0.0000.