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

NWPX Infrastructure (NWPX) CEO sells 2,500 shares, keeps 78,629 plus awards

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. President & CEO Scott J. Montross reported selling 2,500 shares of common stock on 2026-08-04 at a weighted average price of $128.6186 per share in an open-market transaction under a Rule 10b5-1(c) plan adopted on 05/05/2026. The sale was executed in multiple trades at prices ranging from $126.60 to $130.33 per share. Following the sale, he directly holds 78,629 common shares, plus equity awards covering 13,305 Restricted Stock Units vesting in January 2027, 2028 and 2029 and 39,916 Performance Shares eligible to vest from March 2027 to 2029 based on total EBITDA margin.

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Insider MONTROSS SCOTT J
Role President & CEO
Sold 2,500 shs ($322K)
Type Security Shares Price Value
Sale Common Stock F1, F2 2,500 $128.6186 $322K
holding Restricted Stock Units F3, F4 -- -- --
holding Performance Shares F5, F6 -- -- --
Holdings After Transaction: Common Stock — 78,629 shares (Direct); Restricted Stock Units — 13,305 shares (Direct); Performance Shares — 39,916 shares (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 $126.60 to $130.33 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.
Shares sold 2,500 shares Common stock sale on 2026-08-04 by President & CEO
Weighted average sale price $128.6186 per share Open-market sale of 2,500 common shares on 2026-08-04
Sale price range $126.60–$130.33 per share Multiple trades comprising the reported 2,500-share sale
Common shares held after sale 78,629 shares Directly owned NWPX common stock following the transaction
Restricted Stock Units underlying shares 13,305 shares RSUs vesting in January 2027, 2028 and 2029, each for one common share
Performance Shares underlying shares 39,916 shares Performance Shares vesting in March 2027, 2028 and 2029 based on EBITDA margin
10b5-1 plan adoption date 05/05/2026 Adoption date of the Rule 10b5-1(c) trading plan governing the sale
Rule 10b5-1(c) plan financial
"Adoption date of referenced 10b5-1(c) plan is: 05/05/2026"
Restricted Stock Units financial
"Each Restricted Stock Unit represents a contingent right to receive one share"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Performance Shares financial
"Performance Shares vest in an amount ranging from 0-200% to the extent 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.
weighted average sale price financial
"The price reported reflects the weighted average sale price."
EBITDA margin financial
"Performance Shares are earned based on NWPX's total EBITDA margin over the 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.

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Form 4 Insider Transactions: What Each Field Means →

FAQ

What insider transaction did NWPX's CEO report on this Form 4?
NWPX Infrastructure CEO Scott J. Montross reported a sale of 2,500 common shares on 2026-08-04 at a weighted average price of $128.6186 per share. The transaction was coded as an open-market or private sale (code S) and reported as a direct ownership change.

Was the NWPX (NWPX) CEO stock sale made under a Rule 10b5-1 plan?
Yes. The filing’s Rule 10b5-1 checkbox is marked, and a footnote states the referenced 10b5-1(c) plan was adopted on 05/05/2026. The reported 2,500-share sale on 2026-08-04 was executed pursuant to that pre-arranged trading plan.

At what prices did the NWPX CEO sell his shares?
The CEO’s 2,500-share sale used a weighted average price of $128.6186 per share. A footnote explains the trade was executed in multiple lots at prices ranging from $126.60 to $130.33 per share, with full trade details available on request.

How many NWPX shares does Scott J. Montross hold after the reported sale?
After the sale, Scott J. Montross directly holds 78,629 shares of NWPX common stock. In addition, he has equity awards representing 13,305 Restricted Stock Units and 39,916 Performance Shares that may deliver additional common shares as they vest through 2029.

What Restricted Stock Units does the NWPX CEO hold and when do they vest?
The CEO holds awards covering 13,305 Restricted Stock Units, each representing a contingent right to receive one NWPX common share. According to the filing, these RSUs vest in installments in January of 2027, 2028 and 2029, subject to continued service and applicable conditions.

How are NWPX Performance Shares for the CEO earned and when do they vest?
The CEO holds Performance Shares tied to 39,916 underlying common shares. The award can pay out from 0–200% of target, based on NWPX’s total EBITDA margin over a measurement period, and vests in installments in March 2027, 2028 and 2029.
SEC Form 4
FORM 4UNITED 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
President & CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/04/2026S(1)2,500(1)D$128.6186(2)78,629D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(3) (4) (4)Common Stock13,305(3)13,305D
Performance Shares(5) (6) (6)Common Stock39,916(5)39,916D
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 $126.60 to $130.33 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/ Megan Kendrick08/05/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR