{"transactions":[{"id":934198,"issuer":{"id":5430,"kind":"organization","name":"Limbach Holdings, Inc.","symbol":"LMB"},"owners":[{"id":69056,"kind":"person","name":"Dugan Terence Patrick","position":1,"cik":"0002105879","reported_name":"Dugan Terence Patrick","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-01-21T21:08:26.000Z","date":"2026-01-20","kind":"grant","planned":false,"acquired":true,"shares":1498,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit (\"RSU\") represents a contingent right to receive one share of Limbach Holdings, Inc. (the \"Company\") common stock, exempt under Rule 16b-3."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This award of RSUs was granted on January 20, 2026. The RSUs are scheduled to cliff vest on January 1, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"This award of RSUs was granted on January 20, 2026. The RSUs are scheduled to cliff vest on January 1, 2027."}],"balance_after":1498,"derivative":{"underlying":"Common Stock","underlying_shares":1498},"source":{"system":"sec-edgar","filing":"0001628280-26-002872","document":"wk-form4_1769029703.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1606163/000162828026002872/wk-form4_1769029703.xml","form_type":"4"}}]}