NWPX Infrastructure (NWPX) CEO sells 2,500 shares, keeps large equity stake

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. President & CEO Scott J. Montross reported an open-market sale of 2,500 shares of common stock at $72.48 per share on March 16, 2026, executed under a Rule 10b5-1 trading plan adopted on December 3, 2025. Following the sale, he directly holds 65,977 common shares, plus derivative awards representing 13,305 underlying shares from restricted stock units and 63,820 underlying shares from performance shares that vest between 2026 and 2029 based on EBITDA margin performance.

Insights

Equity compensation & insider-trading analyst

CEO’s 2,500-share sale is small and pre-planned, with sizable equity still held.

The President & CEO sold 2,500 common shares at $72.48 per share, classified as an open-market sale. This occurred under a Rule 10b5-1 trading plan adopted on December 3, 2025, indicating the transaction was pre-scheduled rather than opportunistic.

After the sale, he still directly owns 65,977 common shares, alongside restricted stock units tied to 13,305 underlying shares and performance shares tied to 63,820 underlying shares. Given the remaining equity exposure and pre-planned nature, this looks like routine portfolio management rather than a thesis-changing move.

Insider Trade Summary 10b5-1

Net Seller: 2,500 shares ($181,200)

Net Sell 3 txns

Insider MONTROSS SCOTT J

Role President & CEO

Sold 2,500 shs ($181K)

Type	Security	Shares	Price	Value
holding	Restricted Stock Units	--	--	--
holding	Performance Shares	--	--	--
Sale	Common Stock	2,500	$72.48	$181K

Holdings After Transaction: Restricted Stock Units — 13,305 shares (Direct); Performance Shares — 63,820 shares (Direct); Common Stock — 65,977 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.

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)
03/23/2026

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	03/16/2026		S(1)		2,500(1)	D	$72.48(2)	65,977	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	03/23/2026
	** 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 J. Montross report?

Scott J. Montross reported selling 2,500 shares of NWPX common stock in an open-market transaction at $72.48 per share. The sale occurred on March 16, 2026 and was disclosed on a Form 4 insider trading report.

Was the NWPX CEO’s 2,500-share sale under a Rule 10b5-1 plan?

Yes. The sale is tied to a Rule 10b5-1(c) trading plan with an adoption date of December 3, 2025. Such plans pre-schedule trades, suggesting this disposition was part of a structured program rather than a discretionary market-timing decision.

How many NWPX common shares does the CEO hold after this Form 4?

After selling 2,500 shares, the CEO directly holds 65,977 shares of NWPX common stock. This figure reflects his post-transaction ownership, showing he retains a substantial direct equity stake in the company following the reported sale.

What restricted stock units does the NWPX CEO have outstanding?

The CEO holds restricted stock units linked to 13,305 underlying common shares. Each unit represents a contingent right to one NWPX share, vesting in installments during January 2027, 2028, and 2029, subject to continued service and plan conditions.

How are the NWPX CEO’s performance shares structured and when do they vest?

He holds performance shares tied to 63,820 underlying common shares. These may vest from 0–200% of target based on NWPX’s total EBITDA margin over a measurement period, with installments vesting in March 2026, 2027, 2028, and 2029.

What does the Form 4 say about pricing of the NWPX CEO’s share sale?

The reported transaction price is a weighted average sale price of $72.48 per share. The filing notes the sale was executed in multiple trades and the CEO will provide detailed price breakdowns upon request to the issuer, holders, or SEC staff.