{"transactions":[{"id":4635935,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-10-06T20:04:49.000Z","date":"2026-10-02","kind":"sale","planned":true,"acquired":false,"shares":12631,"price":105.8646,"value":1337175.7626,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Adoption date of referenced 10b5-1(c) plan is: 05/29/2026"},{"field":"shares","element":"transactionShares","label":"F1","text":"Adoption date of referenced 10b5-1(c) plan is: 05/29/2026"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $105.2500 to $107.2700 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."}],"balance_after":12643,"source":{"system":"sec-edgar","filing":"0001437749-26-032178","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1808046/000143774926032178/rdgdoc.xml","form_type":"4"}},{"id":4633134,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-10-03T00:43:59.000Z","date":"2026-10-01","kind":"sale","planned":true,"acquired":false,"shares":12353,"price":103.3795,"value":1277046.9635,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Adoption date of referenced 10b5-1(c) plan is: 05/29/2026"},{"field":"shares","element":"transactionShares","label":"F1","text":"Adoption date of referenced 10b5-1(c) plan is: 05/29/2026"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $100.3900 to $104.7300 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."}],"balance_after":25274,"source":{"system":"sec-edgar","filing":"0001437749-26-031898","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926031898/rdgdoc.xml","form_type":"4"}},{"id":821148,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Performance Shares","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2128,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"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."}],"balance_after":10959,"derivative":{"underlying":"Common Stock","underlying_shares":2320},"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821147,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Performance Shares","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2503,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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."}],"balance_after":13087,"derivative":{"underlying":"Common Stock","underlying_shares":3254},"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821146,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Performance Shares","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2883,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."}],"balance_after":15590,"derivative":{"underlying":"Common Stock","underlying_shares":3373},"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821145,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":912,"price":77.86,"value":71008.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":37627,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821144,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2320,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":38539,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821143,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1280,"price":77.86,"value":99660.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":36219,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821142,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3254,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":37499,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821141,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1327,"price":77.86,"value":103320.22,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":34245,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":821140,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Common Stock","published_at":"2026-04-02T20:42:48.000Z","date":"2026-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3373,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":35572,"source":{"system":"sec-edgar","filing":"0001437749-26-011160","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926011160/rdgdoc.xml","form_type":"4"}},{"id":842545,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Performance Shares","published_at":"2026-03-16T21:05:38.000Z","date":"2026-03-12","kind":"grant","planned":false,"acquired":true,"shares":4198,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Performance Shares vest in installments as follows: 1/3 on March 31, 2027, 1/3 on March 31, 2028 and 1/3 on March 30, 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Performance Shares vest in installments as follows: 1/3 on March 31, 2027, 1/3 on March 31, 2028 and 1/3 on March 30, 2029."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"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."}],"balance_after":18473,"derivative":{"underlying":"Common Stock","underlying_shares":4198},"source":{"system":"sec-edgar","filing":"0001437749-26-008449","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926008449/rdgdoc.xml","form_type":"4"}},{"id":842544,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP and Group President of WTS"}}],"security":"Restricted Stock","published_at":"2026-03-16T21:05:38.000Z","date":"2026-03-12","kind":"grant","planned":false,"acquired":true,"shares":1399,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2027, 1/3 on January 14, 2028 and 1/3 on January 16, 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2027, 1/3 on January 14, 2028 and 1/3 on January 16, 2029."}],"balance_after":3654,"derivative":{"underlying":"Common Stock","underlying_shares":1399},"source":{"system":"sec-edgar","filing":"0001437749-26-008449","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926008449/rdgdoc.xml","form_type":"4"}},{"id":936018,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":false,"shares":709,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2026, 1/3 on January 15, 2027 and 1/3 on January 14, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2026, 1/3 on January 15, 2027 and 1/3 on January 14, 2028."}],"balance_after":2255,"derivative":{"underlying":"Common Stock","underlying_shares":709},"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936017,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":false,"shares":834,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."}],"balance_after":2964,"derivative":{"underlying":"Common Stock","underlying_shares":834},"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936016,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":false,"shares":960,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of NWPX common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."}],"balance_after":3798,"derivative":{"underlying":"Common Stock","underlying_shares":960},"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936015,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":302,"price":69.27,"value":20919.54,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":32199,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936014,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":true,"shares":709,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":32501,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936013,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":355,"price":69.27,"value":24590.85,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":31792,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936012,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":true,"shares":834,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":32147,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936011,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":409,"price":69.27,"value":28331.43,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":31313,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":936010,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2026-01-20T21:15:36.000Z","date":"2026-01-15","kind":"exercise","planned":false,"acquired":true,"shares":960,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":31722,"source":{"system":"sec-edgar","filing":"0001437749-26-001563","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774926001563/rdgdoc.xml","form_type":"4"}},{"id":1184723,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2503,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2025, 1/3 on March 31, 2026 and 1/3 on March 31, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2025, 1/3 on March 31, 2026 and 1/3 on March 31, 2027."}],"balance_after":14275,"derivative":{"underlying":"Common Stock","underlying_shares":3329},"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184722,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2882,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"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"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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"}],"balance_after":16778,"derivative":{"underlying":"Common Stock","underlying_shares":3199},"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184721,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2264,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025"}],"balance_after":19660,"derivative":{"underlying":"Common Stock","underlying_shares":2672},"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184720,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1243,"price":41.3,"value":51335.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":30762,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184719,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3329,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":32005,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184718,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1194,"price":41.3,"value":49312.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":28676,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184717,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3199,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":29870,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184716,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":997,"price":41.3,"value":41176.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":26671,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1184715,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-04-02T19:26:52.000Z","date":"2025-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2672,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":27668,"source":{"system":"sec-edgar","filing":"0001437749-25-010630","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010630/rdgdoc.xml","form_type":"4"}},{"id":1188350,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2025-03-31T18:43:24.000Z","date":"2025-03-27","kind":"grant","planned":false,"acquired":true,"shares":6386,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."}],"balance_after":21924,"derivative":{"underlying":"Common Stock","underlying_shares":6386},"source":{"system":"sec-edgar","filing":"0001437749-25-010121","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010121/rdgdoc.xml","form_type":"4"}},{"id":1188349,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2025-03-31T18:43:24.000Z","date":"2025-03-27","kind":"grant","planned":false,"acquired":true,"shares":2129,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2026, 1/3 on January 15, 2027 and 1/3 on January 14, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2026, 1/3 on January 15, 2027 and 1/3 on January 14, 2028."}],"balance_after":4758,"derivative":{"underlying":"Common Stock","underlying_shares":2129},"source":{"system":"sec-edgar","filing":"0001437749-25-010121","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925010121/rdgdoc.xml","form_type":"4"}},{"id":1300835,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":false,"shares":834,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."}],"balance_after":2629,"derivative":{"underlying":"Common Stock","underlying_shares":834},"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300834,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":false,"shares":961,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."}],"balance_after":3463,"derivative":{"underlying":"Common Stock","underlying_shares":961},"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300833,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":false,"shares":754,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."}],"balance_after":4424,"derivative":{"underlying":"Common Stock","underlying_shares":754},"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300832,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":355,"price":48.66,"value":17274.3,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":24996,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300831,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":true,"shares":834,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":25351,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300830,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":409,"price":48.66,"value":19901.94,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":24517,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300829,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":true,"shares":961,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":24926,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300828,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":321,"price":48.66,"value":15619.86,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":23965,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1300827,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2025-01-17T22:11:23.000Z","date":"2025-01-15","kind":"exercise","planned":false,"acquired":true,"shares":754,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":24286,"source":{"system":"sec-edgar","filing":"0001437749-25-001404","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774925001404/rdgdoc.xml","form_type":"4"}},{"id":1551181,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":false,"shares":2882,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"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."}],"balance_after":15538,"derivative":{"underlying":"Common Stock","underlying_shares":2594},"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551180,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":false,"shares":2263,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."}],"balance_after":18420,"derivative":{"underlying":"Common Stock","underlying_shares":2489},"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551179,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":false,"shares":1739,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."}],"balance_after":20683,"derivative":{"underlying":"Common Stock","underlying_shares":2139},"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551178,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1020,"price":35.16,"value":35863.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":23532,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551177,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":true,"shares":2594,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":24552,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551176,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":979,"price":35.16,"value":34421.64,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":21958,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551175,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":true,"shares":2489,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":22937,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551174,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":841,"price":35.16,"value":29569.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":20448,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1551173,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-04-03T20:50:31.000Z","date":"2024-04-01","kind":"exercise","planned":false,"acquired":true,"shares":2139,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":21289,"source":{"system":"sec-edgar","filing":"0001437749-24-010901","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010901/rdgdoc.xml","form_type":"4"}},{"id":1556894,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2024-04-01T13:45:43.000Z","date":"2024-03-28","kind":"grant","planned":false,"acquired":true,"shares":7509,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2025, 1/3 on March 31, 2026, and 1/3 on March 31, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2025, 1/3 on March 31, 2026, and 1/3 on March 31, 2027."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."}],"balance_after":22422,"derivative":{"underlying":"Common Stock","underlying_shares":7509},"source":{"system":"sec-edgar","filing":"0001437749-24-010201","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010201/rdgdoc.xml","form_type":"4"}},{"id":1556893,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2024-04-01T13:45:43.000Z","date":"2024-03-28","kind":"grant","planned":false,"acquired":true,"shares":2503,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2025, 1/3 on January 15, 2026 and 1/3 on January 15, 2027."}],"balance_after":5178,"derivative":{"underlying":"Common Stock","underlying_shares":2503},"source":{"system":"sec-edgar","filing":"0001437749-24-010201","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924010201/rdgdoc.xml","form_type":"4"}},{"id":1678409,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":false,"shares":961,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."}],"balance_after":2675,"derivative":{"underlying":"Common Stock","underlying_shares":961},"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678408,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":false,"shares":755,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."}],"balance_after":3636,"derivative":{"underlying":"Common Stock","underlying_shares":755},"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678407,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":false,"shares":579,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."}],"balance_after":4391,"derivative":{"underlying":"Common Stock","underlying_shares":579},"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678406,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":429,"price":28.84,"value":12372.36,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":19150,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678405,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":true,"shares":961,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":19579,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678404,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":337,"price":28.84,"value":9719.08,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":18618,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678403,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":true,"shares":755,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":18955,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678402,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":258,"price":28.84,"value":7440.72,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":18200,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1678401,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2024-01-17T22:04:36.000Z","date":"2024-01-15","kind":"exercise","planned":false,"acquired":true,"shares":579,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":18458,"source":{"system":"sec-edgar","filing":"0001437749-24-001545","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774924001545/rdgdoc.xml","form_type":"4"}},{"id":1921950,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2023-04-11T17:44:52.000Z","date":"2023-04-08","kind":"grant","planned":false,"acquired":true,"shares":8647,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."}],"balance_after":14913,"derivative":{"underlying":"Common Stock","underlying_shares":8647},"source":{"system":"sec-edgar","filing":"0001437749-23-009953","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009953/rdgdoc.xml","form_type":"4"}},{"id":1921949,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2023-04-11T17:44:52.000Z","date":"2023-04-08","kind":"grant","planned":false,"acquired":true,"shares":2882,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2024, 1/3 on January 15, 2025 and 1/3 on January 15, 2026."}],"balance_after":4970,"derivative":{"underlying":"Common Stock","underlying_shares":2882},"source":{"system":"sec-edgar","filing":"0001437749-23-009953","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009953/rdgdoc.xml","form_type":"4"}},{"id":1929976,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2263,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."}],"balance_after":6266,"derivative":{"underlying":"Common Stock","underlying_shares":2987},"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929975,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":false,"shares":1739,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."}],"balance_after":8529,"derivative":{"underlying":"Common Stock","underlying_shares":2191},"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929974,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":false,"shares":2172,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."}],"balance_after":10268,"derivative":{"underlying":"Common Stock","underlying_shares":3453},"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929973,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1175,"price":31.23,"value":36695.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":17879,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929972,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2987,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":19054,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929971,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":862,"price":31.23,"value":26920.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":16067,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929970,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":true,"shares":2191,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":16929,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929969,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1358,"price":31.23,"value":42410.34,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":14738,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":1929968,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-04-04T20:13:59.000Z","date":"2023-03-31","kind":"exercise","planned":false,"acquired":true,"shares":3453,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":16096,"source":{"system":"sec-edgar","filing":"0001437749-23-009292","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923009292/rdgdoc.xml","form_type":"4"}},{"id":2053047,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":false,"shares":755,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."}],"balance_after":2088,"derivative":{"underlying":"Common Stock","underlying_shares":755},"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053046,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":false,"shares":580,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."}],"balance_after":2843,"derivative":{"underlying":"Common Stock","underlying_shares":580},"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053045,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":false,"shares":725,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2021, 1/3 on January 17, 2022 and 1/3 on January 16, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2021, 1/3 on January 17, 2022 and 1/3 on January 16, 2023."}],"balance_after":3423,"derivative":{"underlying":"Common Stock","underlying_shares":725},"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053044,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"tax_withholding","acquired":false,"shares":337,"price":35.55,"value":11980.35,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":12643,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053043,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":true,"shares":755,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":12980,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053042,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"tax_withholding","acquired":false,"shares":258,"price":35.55,"value":9171.9,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":12225,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053041,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":true,"shares":580,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":12483,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053040,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"tax_withholding","acquired":false,"shares":323,"price":35.55,"value":11482.65,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":11903,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2053039,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Common Stock","published_at":"2023-01-18T21:42:09.000Z","date":"2023-01-16","kind":"exercise","acquired":true,"shares":725,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":12226,"source":{"system":"sec-edgar","filing":"0001437749-23-001231","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774923001231/rdgdoc.xml","form_type":"4"}},{"id":2226066,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Performance Shares","published_at":"2022-06-21T17:18:15.000Z","date":"2022-06-16","kind":"grant","acquired":true,"shares":6790,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2023, 1/3 on April 1, 2024 and 1/3 on March 31, 2025."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."}],"balance_after":12440,"derivative":{"underlying":"Common Stock","underlying_shares":6790},"source":{"system":"sec-edgar","filing":"0001437749-22-015431","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922015431/rdgdoc.xml","form_type":"4"}},{"id":2226065,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"SVP/GM of Engineered SPP"}}],"security":"Restricted Stock","published_at":"2022-06-21T17:18:15.000Z","date":"2022-06-16","kind":"grant","acquired":true,"shares":2264,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 16, 2023, 1/3 on January 15, 2024 and 1/3 on January 15, 2025."}],"balance_after":4148,"derivative":{"underlying":"Common Stock","underlying_shares":2264},"source":{"system":"sec-edgar","filing":"0001437749-22-015431","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922015431/rdgdoc.xml","form_type":"4"}},{"id":2309402,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Performance Shares","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"exercise","acquired":false,"shares":1739,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Performance Shares vest in installments as follows: 1/3 on March 31, 2022, 1/3 on March 31, 2023 and 1/3 on April 1, 2024."}],"balance_after":5650,"derivative":{"underlying":"Common Stock","underlying_shares":1617},"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2309401,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Performance Shares","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"exercise","acquired":false,"shares":2173,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."}],"balance_after":7389,"derivative":{"underlying":"Common Stock","underlying_shares":3064},"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2309400,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"tax_withholding","acquired":false,"shares":603,"price":25.45,"value":15346.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":11501,"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2309399,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"exercise","acquired":true,"shares":1617,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":12104,"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2309398,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"tax_withholding","acquired":false,"shares":1144,"price":25.45,"value":29114.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":10487,"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2309397,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-04-04T14:21:21.000Z","date":"2022-03-31","kind":"exercise","acquired":true,"shares":3064,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to the vesting of Performance Shares."}],"balance_after":11631,"source":{"system":"sec-edgar","filing":"0001437749-22-008125","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922008125/rdgdoc.xml","form_type":"4"}},{"id":2432863,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":false,"shares":580,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 17, 2022, 1/3 on January 16, 2023 and 1/3 on January 15, 2024."}],"balance_after":1884,"derivative":{"underlying":"Common Stock","underlying_shares":580},"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432862,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":false,"shares":724,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2021, 1/3 on January 17, 2022 and 1/3 on January 16, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2021, 1/3 on January 17, 2022 and 1/3 on January 16, 2023."}],"balance_after":2464,"derivative":{"underlying":"Common Stock","underlying_shares":724},"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432861,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Restricted Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":false,"shares":334,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each Restricted Stock Unit represents a contingent right to receive one share of Northwest Pipe Company common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2020, 1/3 on January 15, 2021 and 1/3 on January 17, 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units vest in installments as follows: 1/3 on January 15, 2020, 1/3 on January 15, 2021 and 1/3 on January 17, 2022."}],"balance_after":3188,"derivative":{"underlying":"Common Stock","underlying_shares":334},"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432860,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"tax_withholding","acquired":false,"shares":247,"price":30.65,"value":7570.55,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":8567,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432859,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":true,"shares":580,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":8814,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432858,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"tax_withholding","acquired":false,"shares":308,"price":30.65,"value":9440.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":8234,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432857,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":true,"shares":724,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":8542,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432856,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"tax_withholding","acquired":false,"shares":142,"price":30.65,"value":4352.3,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents shares withheld by the issuer for payment of taxes incurred upon vesting event consistent with company policy."}],"balance_after":7818,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2432855,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr VP/GM of Water Transmission"}}],"security":"Common Stock","published_at":"2022-01-19T22:28:30.000Z","date":"2022-01-17","kind":"exercise","acquired":true,"shares":334,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents shares acquired pursuant to vesting of Restricted Stock Units."}],"balance_after":7960,"source":{"system":"sec-edgar","filing":"0001437749-22-001242","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774922001242/rdgdoc.xml","form_type":"4"}},{"id":2762434,"issuer":{"id":85,"kind":"organization","name":"NWPX Infrastructure, Inc.","symbol":"NWPX"},"owners":[{"id":54424,"kind":"person","name":"Stokes Eric","position":1,"cik":"0001808046","reported_name":"Stokes Eric","relationship":{"officer":true,"officer_title":"Sr. VP of Sales & Marketing"}}],"security":"Performance Shares","published_at":"2021-04-02T19:12:10.000Z","date":"2021-03-31","kind":"exercise","acquired":false,"shares":2173,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Performance Shares vest in an amount ranging from 0-200% to the extent such Performance Shares are earned. Performance Shares are earned based on Northwest Pipe Company's total EBITDA margin over the measurement period."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Performance Shares vest in installments as follows: 1/3 March 31, 2021, 1/3 on March 31, 2022 and 1/3 on March 31, 2023."}],"balance_after":9562,"derivative":{"underlying":"Common Stock","underlying_shares":4346},"source":{"system":"sec-edgar","filing":"0001437749-21-008112","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1001385/000143774921008112/rdgdoc.xml","form_type":"4"}}],"next_cursor":"2021-04-02T19:12:10.000000Z,2762434"}