NWPX EVP trust sells 4,000 shares at $71.01

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. Executive Vice President Brittain Miles reported an open-market sale by a trust for 4,000 shares of common stock at a weighted average price of $71.01 per share, under a pre-arranged Rule 10b5-1(c) trading plan adopted on December 5, 2025.

After the sale, the trust holds 23,306 shares of common stock. Miles also holds equity awards directly, including Restricted Stock Units covering 2,691 underlying shares that vest in installments in January 2027 and January 2028, and Performance Shares covering 16,761 underlying shares that may vest between 0–200% based on total EBITDA margin, with vesting installments in March 2026, March 2027, and March 2028.

Insider Trade Summary 10b5-1

Net Seller: 4,000 shares

Net Sell 3 txns

Insider Brittain Miles

Role Executive Vice President

Sold 4,000 shs ($284K)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,000	$71.01	$284K
holding	Restricted Stock Units	--	--	--
holding	Performance Shares	--	--	--

Holdings After Transaction: Common Stock — 23,306 shares (Indirect, Trust); Restricted Stock Units — 2,691 contracts (Direct); Performance Shares — 16,761 contracts (Direct)

Footnotes (7)

1. F1. Adoption date of referenced 10b5-1(c) plan is: 12/05/2025
2. F2. This transaction was executed in multiple trades at prices ranging from $70.45 to $73.77 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. F3. Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock.
4. F4. The Restricted Stock Units vest in installments in January of 2027 and 2028.
5. F5. 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. F6. The Performance Shares vest in installments in March of 2026, 2027 and 2028.
7. F7. Reporting person is a beneficiary of the trust.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did NWPX Executive Vice President Brittain Miles report?

Brittain Miles reported an open-market sale by a trust of 4,000 NWPX common shares at a weighted average price of $71.01 per share. The transaction reflects activity in indirect trust holdings rather than a direct personal share sale.

Was the NWPX Brittain Miles share sale made under a Rule 10b5-1 plan?

Yes, the 4,000-share sale was executed under a Rule 10b5-1(c) trading plan adopted on December 5, 2025. Such pre-arranged plans automate trading and can make the timing of transactions less indicative of the insider’s short-term market view.

How many NWPX shares does the trust associated with Brittain Miles hold after the sale?

Following the reported transaction, the trust associated with Brittain Miles holds 23,306 shares of NWPX common stock. Miles is identified as a beneficiary of the trust, so these shares are reported as indirect ownership on the Form 4 filing.

What NWPX Restricted Stock Units does Brittain Miles hold after this Form 4?

Miles holds Restricted Stock Units linked to 2,691 underlying NWPX shares. Each unit represents a contingent right to one share of common stock, vesting in installments during January 2027 and January 2028, subject to continued service and standard award terms.

What are the terms of Brittain Miles’s NWPX Performance Shares?

Miles holds Performance Shares tied to 16,761 underlying NWPX shares. The number earned can range from 0–200%, based on NWPX’s total EBITDA margin over a defined measurement period, with vesting installments in March 2026, March 2027, and March 2028.

Does this NWPX Form 4 show any option exercises by Brittain Miles?

No, the Form 4 highlights a single open-market sale of 4,000 common shares and updates holdings of Restricted Stock Units and Performance Shares. The derivative summary shows no option exercises, focusing instead on unvested equity awards with a zero exercise price.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/16/2026 - 05:09 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).

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)
03/12/2026

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	03/12/2026		S(1)		4,000(1)	D	$71.01(2)	23,306	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	2,691(3)		2,691	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: 12/05/2025

2. This transaction was executed in multiple trades at prices ranging from $70.45 to $73.77 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 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	03/16/2026
	** 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.