NWPX Infrastructure (NWPX) CEO sells 2,056 shares in pre-set 10b5-1 trade

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. President & CEO Scott J. Montross reported an open-market sale of 2,056 shares of common stock at a weighted average price of $76.85 per share on March 30, 2026, executed under a Rule 10b5-1(c) trading plan adopted on December 3, 2025.

Following the sale, he directly holds 63,921 shares of common stock. He also holds Restricted Stock Units representing 13,305 underlying shares of common stock that vest in installments in January 2027, 2028 and 2029.

In addition, he holds Performance Shares tied to 63,820 underlying shares of common stock. These Performance Shares can vest between 0–200% based on NWPX’s total EBITDA margin over the measurement period and vest in installments in March 2026, 2027, 2028 and 2029.

Insider Trade Summary 10b5-1

Net Seller: 2,056 shares ($158,004)

Net Sell 3 txns

Insider MONTROSS SCOTT J

Role President & CEO

Sold 2,056 shs ($158K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,056	$76.85	$158K
holding	Restricted Stock Units	--	--	--
holding	Performance Shares	--	--	--

Holdings After Transaction: Common Stock — 63,921 shares (Direct); Restricted Stock Units — 13,305 shares (Direct); Performance Shares — 63,820 shares (Direct)

Footnotes (1)

1. Adoption date of referenced 10b5-1(c) plan is: 12/03/2025 This transaction was executed in multiple trades. 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. Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock. The Restricted Stock Units vest in installments in January of 2027, 2028 and 2029. 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. The Performance Shares vest in installments in March of 2026, 2027, 2028 and 2029.

Key Figures

Shares sold: 2,056 shares Sale price: $76.85 per share Common shares held: 63,921 shares +4 more

7 metrics

Shares sold 2,056 shares Open-market sale on March 30, 2026

Sale price $76.85 per share Weighted average sale price

Common shares held 63,921 shares Direct ownership after transaction

RSU underlying shares 13,305 shares Contingent rights vesting 2027–2029

Performance Share underlying 63,820 shares EBITDA-margin based, vesting 2026–2029

Performance Share payout range 0–200% Based on total EBITDA margin

10b5-1 plan adoption December 3, 2025 Plan governing reported sale

Key Terms

Rule 10b5-1(c) plan, Restricted Stock Unit, Performance Shares, EBITDA margin, +1 more

5 terms

Rule 10b5-1(c) plan regulatory

"Adoption date of referenced 10b5-1(c) plan is: 12/03/2025"

Restricted Stock Unit financial

"Each Restricted Stock Unit represents a contingent right to receive one share"

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.

Performance Shares financial

"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

EBITDA margin financial

"Performance Shares are earned based on NWPX's total EBITDA margin over the measurement period"

EBITDA margin is the share of each dollar of sales that a company keeps as operating cash profit before interest, taxes, and accounting for equipment wear and long-term investments. Think of it like the cash a store has left from every sale after paying day-to-day running costs but before paying rent, loan interest or replacing old machinery. Investors use it to compare core profitability and operational efficiency across companies by removing financing and accounting differences.

weighted average sale price financial

"The price reported reflects the weighted average sale price"

Form 4 Insider Transactions: What Each Field Means →

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^*

MONTROSS SCOTT J

(Last) (First) (Middle)

201 NE PARK PLAZA DRIVE

SUITE 100

(Street)

VANCOUVER WASHINGTON 98684

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	President & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/30/2026

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
Common Stock	03/30/2026		S(1)		2,056(1)	D	$76.85(2)	63,921	D

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	13,305(3)		13,305	D
Performance Shares	(5)							(6)	(6)	Common Stock	63,820(5)		63,820	D

Explanation of Responses:

1. Adoption date of referenced 10b5-1(c) plan is: 12/03/2025

2. This transaction was executed in multiple trades. 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, 2028 and 2029.

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, 2028 and 2029.

	/s/ Megan Kendrick	03/31/2026
	** 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)

FAQ

What insider transaction did NWPX CEO Scott Montross report on this Form 4?

Scott J. Montross reported selling 2,056 NWPX common shares. The shares were sold in open-market transactions at a weighted average price of $76.85 per share, and the trades were executed under a pre-arranged Rule 10b5-1(c) trading plan adopted on December 3, 2025.

How many NWPX shares does the CEO hold after the reported sale?

After the sale, the CEO directly holds 63,921 NWPX common shares. This figure reflects his direct ownership position following the open-market disposition of 2,056 shares reported in the Form 4, and it is separate from his additional equity awards like RSUs and Performance Shares.

What Restricted Stock Units (RSUs) does the NWPX CEO currently hold?

The CEO holds RSUs linked to 13,305 NWPX common shares. Each RSU represents a contingent right to receive one share of common stock. These RSUs vest in three separate installments scheduled for January 2027, January 2028 and January 2029, subject to continued service conditions.

How are the NWPX CEO’s Performance Shares structured and when do they vest?

The CEO holds Performance Shares tied to 63,820 underlying shares. The number ultimately earned can range from 0–200%, determined by NWPX’s total EBITDA margin over the measurement period, with vesting installments in March 2026, March 2027, March 2028 and March 2029.

Was the NWPX CEO’s stock sale part of a Rule 10b5-1 trading plan?

Yes, the reported sale was made under a Rule 10b5-1(c) plan. A footnote states the plan’s adoption date was December 3, 2025, indicating the trades were pre-arranged according to preset instructions rather than timed discretionarily after new information.

What price information is provided for the NWPX CEO’s recent share sale?

The filing shows a weighted average sale price of $76.85 per share. A footnote explains the transaction was executed in multiple trades and that detailed price breakdowns for each trade within the reported range are available upon request from the issuer or the SEC staff.