BWX Technologies director granted 7.8 stock rights

A BWX Technologies director received additional dividend equivalent rights linked to deferred restricted stock units, modestly increasing her derivative-based equity position.

Rhea-AI Filing Summary

BWX Technologies, Inc. (symbol: BWXT) is the issuer of record for a Form 4 filing submitted to the SEC. PIASECKI NICOLE WEYERHAEUSER reported acquisition or exercise transactions in this Form 4 filing.

BWX Technologies, Inc. (BWXT) director Nicole Weyerhaeuser Piasecki reported an automatic grant of 7.8 Dividend Equivalent Rights on September 4, 2026, tied to previously granted restricted stock units for which she elected deferral. Each right corresponds to one share of BWXT common stock, bringing her reported dividend-equivalent balance to 61.21 rights, to be delivered proportionately with the related RSUs.

Insider Trade Summary

Grant/Award: 7.8 shares

Grant/Award 1 txn

Insider PIASECKI NICOLE WEYERHAEUSER

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights F1	7.8	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 61.21 contracts (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Dividend Equivalent Rights granted: 7.8 rights Dividend Equivalent Rights after transaction: 61.21 rights Underlying common shares per RSU/DER: 1 share

3 metrics

Dividend Equivalent Rights granted 7.8 rights Grant on September 4, 2026 to director tied to existing RSUs

Dividend Equivalent Rights after transaction 61.21 rights Total derivative balance reported following the September 4, 2026 grant

Underlying common shares per RSU/DER 1 share Each RSU and each Dividend Equivalent Right represent a contingent right to one BWXT share

Key Terms

Dividend Equivalent Rights, restricted stock unit, deferral election

3 terms

Dividend Equivalent Rights financial

"The dividend equivalent rights accrued on four restricted stock unit grants"

Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.

restricted stock unit financial

"The dividend equivalent rights accrued on four restricted stock unit grants"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

deferral election financial

"In accordance with the deferral election, the DERs will be delivered"

FAQ

What insider transaction did BWXT disclose in this Form 4?

BWX Technologies disclosed that director Nicole Weyerhaeuser Piasecki received a grant of 7.8 Dividend Equivalent Rights on September 4, 2026, related to existing restricted stock unit awards for which she had elected to defer receipt of the underlying shares.

How many BWXT Dividend Equivalent Rights does the director hold after this transaction?

After the September 4, 2026 grant, the director is reported to hold 61.21 Dividend Equivalent Rights. Each right represents a contingent entitlement to receive one share of BWX Technologies common stock, delivered in proportion with the related restricted stock units.

What do the BWXT Dividend Equivalent Rights reported in this Form 4 represent?

The Dividend Equivalent Rights represent amounts that accrued on four restricted stock unit grants for which the director elected to defer receipt. Each RSU and each Dividend Equivalent Right represent a contingent right to receive one share of BWXT common stock in the future.

When will the BWXT Dividend Equivalent Rights be delivered to the reporting person?

According to the disclosure, the Dividend Equivalent Rights will be delivered proportionately with the restricted stock units to which they relate, consistent with the director’s deferral election for those RSU awards.

Was this BWXT insider transaction made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming a plan. The transaction is characterized as a grant or other acquisition of derivative rights, not an open-market trade, and no Rule 10b5-1 trading plan is reported for it.

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Available on EDGAR 09/08/2026 - 04:20 PM Accepted by SEC EDGAR 09/08/2026 - 04:20 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

PIASECKI NICOLE WEYERHAEUSER

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Dividend Equivalent Rights	(1)	09/04/2026		A		7.8		(1)	(1)	Common Stock	7.8	$0	61.21	D

Explanation of Responses:

1. 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.

	/s/ Nicole W. Piasecki, by Alexander D. Cobey, attorney-in-fact	09/08/2026
	** Signature of Reporting Person	Date
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)