NWPX · NWPX Infrastructure, Inc. · Insider Trading

100 shares represents a bona fide gift of NWPX Infrastructure, Inc. common stock made by the reporting person.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $104.91 to $106.81 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.

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

This transaction was executed in multiple trades at prices ranging from $106.5200 to $107.5199 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.

Adoption date of referenced 10b5-1(c) plan is: 06-09-2026

This transaction was executed in multiple trades at prices ranging from $105.0000 to $107.7650 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.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $110.12 to $111.66 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.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $110.00 to $111.32 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.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $110.00 to $110.19 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.

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

This transaction was executed in multiple trades at prices ranging from $110.0100 to $111.2200 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.

600 shares represents a bona fide gift of NWPX Infrastructure, Inc. common stock made by the reporting person.

Adoption date of referenced 10b5-1(c) plan is: 05/27/2026

This transaction was executed in multiple trades at prices ranging from $109.6300 to $112.0300 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.

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

This transaction was executed in multiple trades at prices ranging from $108.4500 to $110.7200 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.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $110.07 to $110.76 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.

Adoption date of referenced 10b5-1(c) plan is: 05-18-2026

This transaction was executed in multiple trades at prices ranging from $114.50 to $117.42 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.

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

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.

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

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.

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

This transaction was executed in multiple trades at prices ranging from $120.0000 to $120.9999 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.

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

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.

Represents shares acquired pursuant to the vesting of Performance Shares.

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.

Performance Shares vest in installments as follows: 1/3 March 31, 2025, 1/3 on March 31, 2026 and 1/3 on March 31, 2027.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares acquired pursuant to the vesting of Performance Shares.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares acquired pursuant to the vesting of Performance Shares.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares acquired pursuant to the vesting of Performance Shares.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares acquired pursuant to the vesting of Performance Shares.

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.

Performance Shares vest in installments as follows: 1/3 on March 31, 2026, 1/3 on March 31, 2027 and 1/3 on March 31, 2028.

Represents shares acquired pursuant to the vesting of Performance Shares.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.

Represents shares acquired pursuant to the vesting of Performance Shares.

Reporting person is a beneficiary of the trust

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.

Performance Shares vest in installments as follows: 1/3 on March 31, 2026, 1/3 on March 31, 2027 and 1/3 on March 31, 2028.

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.

Performance Shares vest in installments as follows: 1/3 on April 1, 2024, 1/3 on March 31, 2025 and 1/3 on March 31, 2026.

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.

Performance Shares vest in installments as follows: 1/3 on April 1, 2024, 1/3 on March 31, 2025 and 1/3 on March 31, 2026.

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.

Performance Shares vest in installments as follows: 1/3 on April 1, 2024, 1/3 on March 31, 2025 and 1/3 on March 31, 2026.

Represents shares acquired pursuant to the vesting of Performance Shares.

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.

Performance Shares vest in installments as follows: 1/3 March 31, 2025, 1/3 on March 31, 2026 and 1/3 on March 31, 2027.

Represents shares acquired pursuant to the vesting of Performance Shares.

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.

Performance Shares vest in installments as follows: 1/3 on March 31, 2026, 1/3 on March 31, 2027 and 1/3 on March 31, 2028.

Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy.