[Form 4] NWPX Infrastructure, Inc. Insider Trading Activity

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. Executive Vice President Miles Brittain reported a planned sale of common stock under a Rule 10b5-1(c) trading plan. On 11/24/2025, a trust for his benefit sold 4,000 shares of NWPX common stock at a weighted average price of $56.41 per share, leaving 25,725 shares held indirectly through the trust.

He also reported equity awards in the form of 5,587 restricted stock units, each representing one share of NWPX common stock and scheduled to vest in installments in January 2026, 2027 and 2028. In addition, he holds 16,761 performance shares, which can vest from 0% to 200% of the target amount based on NWPX’s total EBITDA margin over the measurement period, with vesting in installments in March 2026, 2027 and 2028.

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).

X

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^*

Brittain Miles

(Last) (First) (Middle)

201 NE PARK PLAZA DRIVE

SUITE 100

(Street)

VANCOUVER WA 98684

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NWPX Infrastructure, Inc. [ NWPX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
11/24/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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
Common Stock	11/24/2025		S(1)		4,000(1)	D	$56.41(2)	25,725	I	Trust(7)

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
Restricted Stock Units	(3)							(4)	(4)	Common Stock	5,587		5,587	D
Performance Shares	(5)							(6)	(6)	Common Stock	16,761(5)		16,761(5)	D

Explanation of Responses:

1. Adoption date of referenced 10b5-1(c) plan is: 08/14/2025

2. This transaction was executed in multiple trades at prices ranging from $54.85 to $56.955 per share. The price reported reflects the weighted average sale price. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock.

4. The Restricted Stock Units vest in installments in January of 2026, 2027 and 2028.

5. Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on NWPX's total EBITDA margin over the measurement period.

6. The Performance Shares vest in installments in March of 2026, 2027 and 2028.

7. Reporting person is a beneficiary of the trust.

	/s/ Miles Brittain	11/25/2025
	** 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.

FAQ

What insider transaction did NWPX EVP Miles Brittain report on Form 4?

Miles Brittain, Executive Vice President of NWPX Infrastructure, Inc., reported a sale of 4,000 shares of NWPX common stock on 11/24/2025. The sale was made under a Rule 10b5-1(c) trading plan.

At what price were the NWPX shares sold in the reported Form 4 transaction?

The 4,000 NWPX shares were sold at a weighted average price of $56.41 per share. The filing notes that the trades occurred in multiple transactions between $54.85 and $56.955 per share.

How many NWPX shares does Miles Brittain beneficially own after the sale?

Following the reported sale, Miles Brittain beneficially owns 25,725 shares of NWPX common stock held indirectly through a trust, of which he is a beneficiary.

What restricted stock units (RSUs) does the NWPX EVP hold according to the Form 4?

He holds 5,587 restricted stock units, each representing a contingent right to receive one share of NWPX common stock. These RSUs vest in installments in January 2026, 2027 and 2028.

What are the performance shares reported by the NWPX EVP and how do they vest?

The filing reports 16,761 performance shares. The number that ultimately vests can range from 0–200% of this target, based on NWPX’s total EBITDA margin over the measurement period. These performance shares vest in installments in March 2026, 2027 and 2028.

Was the NWPX insider sale made under a Rule 10b5-1 trading plan?

Yes. The transaction is indicated as made pursuant to a Rule 10b5-1(c) plan, with an adoption date of 08/14/2025, which is intended to satisfy the affirmative defense conditions for prearranged trading plans.