NWPX CEO sells 2,500 shares under trading plan

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. President & CEO Scott J. Montross reported selling 2,500 shares of common stock on 2026-08-10 at a weighted-average price of $118.739 per share in open-market transactions pursuant to a Rule 10b5-1(c) trading plan adopted on 05/05/2026. Following the sale, he directly holds 76,129 common shares, plus 13,305 Restricted Stock Units and 39,916 Performance Shares that may settle into common stock subject to time- and performance-based vesting conditions through 2029.

Insider Trade Summary 10b5-1

Net Seller: 2,500 shares

Net Sell 3 txns

Insider MONTROSS SCOTT J

Role President & CEO

Sold 2,500 shs ($297K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	2,500	$118.739	$297K
holding	Restricted Stock Units F3, F4	--	--	--
holding	Performance Shares F5, F6	--	--	--

Holdings After Transaction: Common Stock — 76,129 shares (Direct); Restricted Stock Units — 13,305 contracts (Direct); Performance Shares — 39,916 contracts (Direct)

Footnotes (6)

1. F1. Adoption date of referenced 10b5-1(c) plan is: 05/05/2026
2. F2. This transaction was executed in multiple trades at prices ranging from $118.02 to $119.635 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, 2028 and 2029.
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 2027, 2028 and 2029.

Key Figures

Shares sold: 2,500 shares Weighted-average sale price: $118.739 per share Share price range: $118.02–$119.635 per share +4 more

7 metrics

Shares sold 2,500 shares Common stock sold by CEO Scott J. Montross on 2026-08-10

Weighted-average sale price $118.739 per share Open-market sale of 2,500 common shares on 2026-08-10

Share price range $118.02–$119.635 per share Multiple trades making up the reported sale transaction

Common shares held after sale 76,129 shares Direct ownership by CEO following the 2,500-share sale

Restricted Stock Units underlying shares 13,305 shares RSUs representing contingent rights to NWPX common stock

Performance Shares underlying shares 39,916 shares Performance Shares tied to total EBITDA margin over a measurement period

10b5-1 plan adoption date 05/05/2026 Pre-arranged trading plan governing the reported sale

Key Terms

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

4 terms

Rule 10b5-1(c) plan regulatory

"Adoption date of referenced 10b5-1(c) plan is: 05/05/2026"

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.

FAQ

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

What insider transaction did NWPX Infrastructure (NWPX) report for its CEO?

NWPX Infrastructure reported that President & CEO Scott J. Montross sold 2,500 shares of common stock on 2026-08-10. The sale occurred at a weighted-average price of $118.739 per share in open-market transactions executed under a pre-arranged Rule 10b5-1(c) trading plan.

At what price did the NWPX CEO sell shares in the latest Form 4 filing?

The CEO’s reported sale used a weighted-average price of $118.739 per share. Footnotes state the transaction was executed in multiple trades, with prices ranging from $118.02 to $119.635 per share, and the issuer offers to provide detailed trade-level pricing upon request.

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

After the 2,500-share sale, the CEO directly holds 76,129 shares of NWPX common stock. He also has equity awards outstanding, including 13,305 Restricted Stock Units and 39,916 Performance Shares that may convert into common stock if their vesting and performance conditions are met.

What Rule 10b5-1 trading plan is referenced in NWPX’s Form 4 for the CEO?

The sale was executed under a Rule 10b5-1(c) trading plan with an adoption date of 05/05/2026. This type of pre-arranged plan allows insiders to schedule trades in advance, aiming to separate trading decisions from the timing of material nonpublic information.

What are the key vesting terms for NWPX CEO’s Restricted Stock Units and Performance Shares?

The CEO holds 13,305 Restricted Stock Units that vest in installments in January 2027, 2028, and 2029. He also holds 39,916 Performance Shares, which can vest at 0–200% based on total EBITDA margin over a measurement period, with installments vesting in March 2027, 2028, and 2029.

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

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Accepted by SEC EDGAR 08/11/2026 - 05:20 PM EDT 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^*

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)
08/10/2026

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	08/10/2026		S(1)		2,500(1)	D	$118.739(2)	76,129	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	39,916(5)		39,916	D

Explanation of Responses:

1. Adoption date of referenced 10b5-1(c) plan is: 05/05/2026

2. This transaction was executed in multiple trades at prices ranging from $118.02 to $119.635 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, 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 2027, 2028 and 2029.

	/s/ Scott Montross	08/11/2026
	** 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)