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NWPX Infrastructure (NWPX) CEO sells 2,500 shares under 10b5-1 plan

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Form Type
4

Rhea-AI Filing Summary

NWPX Infrastructure, Inc. (NWPX) President & CEO Scott J. Montross reported selling 2,500 shares of common stock on 2026-08-17 at a weighted-average price of $115.13, pursuant to a Rule 10b5-1(c) trading plan adopted on 05/05/2026. After this sale, he directly holds 73,629 common shares, plus 13,305 Restricted Stock Units vesting in January 2027–2029 and 39,916 Performance Shares vesting in March 2027–2029, with the Performance Shares ultimately earned based on the company’s total EBITDA margin.

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Insider MONTROSS SCOTT J
Role President & CEO
Sold 2,500 shs ($288K)
Type Security Shares Price Value
Sale Common Stock F1, F2 2,500 $115.1274 $288K
holding Restricted Stock Units F3, F4 -- -- --
holding Performance Shares F5, F6 -- -- --
Holdings After Transaction: Common Stock — 73,629 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 $113.92 to $116.16 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 by CEO on 2026-08-17
Weighted-average sale price $115.1274 per share Common stock sale executed in multiple trades
Trade price range $113.92–$116.16 per share Range of individual trades in the reported sale
Common shares held after sale 73,629 shares Directly held 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 EBITDA margin performance
Performance Shares earnout range 0–200% Range of Performance Shares that may be earned
10b5-1 plan adoption date 05/05/2026 Adoption date of the referenced Rule 10b5-1(c) plan
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"
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"
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

What did NWPX President & CEO Scott J. Montross report in this Form 4 for NWPX?

Scott J. Montross reported a sale of 2,500 NWPX common shares on 2026-08-17 at a weighted-average price of $115.13 per share, executed under a Rule 10b5-1(c) trading plan adopted on 05/05/2026.

At what price did the NWPX CEO sell shares in the reported Form 4 transaction?

The CEO’s sale used a weighted-average price of $115.13 per share, with individual trades executed between $113.92 and $116.16. The filing notes multiple trades within this range and offers detailed pricing information upon request.

How many NWPX shares does the CEO hold after the reported Form 4 sale?

After the sale, the CEO directly holds 73,629 shares of NWPX common stock. In addition, he has 13,305 Restricted Stock Units and 39,916 Performance Shares outstanding that may convert into additional common shares as they vest or are earned.

What derivative equity awards does the NWPX CEO have according to this Form 4?

The CEO holds 13,305 Restricted Stock Units and 39,916 Performance Shares, each representing rights to NWPX common stock. The RSUs vest in January 2027–2029, while the Performance Shares vest in March 2027–2029 based on EBITDA margin performance.

How are the NWPX CEO’s Performance Shares earned and vested?

The Performance Shares are earned in a range of 0–200% of the target amount, based on NWPX’s total EBITDA margin over a measurement period. Earned shares then vest in installments in March 2027, 2028, and 2029, subject to this performance condition.

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

Yes. The filing states the transaction was under a Rule 10b5-1(c) trading plan adopted on 05/05/2026. Such plans pre-schedule trades, which can reduce the informational value of the sale’s timing about the CEO’s current views.

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

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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)
08/17/2026
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 Stock08/17/2026S(1)2,500(1)D$115.1274(2)73,629D
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 $113.92 to $116.16 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 Kendrick08/18/2026
** 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)