{"transactions":[{"id":676116,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":19903,"kind":"person","name":"Cox Brian C","position":1,"cik":"0002148272","reported_name":"Cox Brian C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-08-25T23:25:03.000Z","date":"2026-08-21","kind":"purchase","planned":false,"acquired":true,"shares":4625,"price":21.64,"value":100085.0,"ownership":{"direct":true},"balance_after":44325,"source":{"system":"sec-edgar","filing":"0001628280-26-058967","document":"wk-form4_1787700300.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1488139/000162828026058967/wk-form4_1787700300.xml","form_type":"4"}},{"id":690661,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":19903,"kind":"person","name":"Cox Brian C","position":1,"cik":"0002148272","reported_name":"Cox Brian C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-08-11T23:22:37.000Z","date":"2026-08-10","kind":"purchase","planned":false,"acquired":true,"shares":39700,"price":25.07,"value":995279.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $24.98 to $25.07, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 1 to this Form 4."}],"balance_after":39700,"source":{"system":"sec-edgar","filing":"0001628280-26-055890","document":"wk-form4_1786490555.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1488139/000162828026055890/wk-form4_1786490555.xml","form_type":"4"}},{"id":697138,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":19903,"kind":"person","name":"Cox Brian C","position":1,"cik":"0002148272","reported_name":"Cox Brian C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Unit","published_at":"2026-08-04T20:45:00.000Z","date":"2026-08-01","kind":"grant","planned":false,"acquired":true,"shares":5132,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Grant pursuant to Ameresco, Inc.'s non-employee director compensation plan."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock (\"Common Stock\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs vest in full on the first anniversary of the grant date, assuming continues service through the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs vest in full on the first anniversary of the grant date, assuming continues service through the vesting date."}],"balance_after":5132,"derivative":{"exercise_date":"2027-08-01","expiration_date":"2027-08-01","underlying":"Class A Common Stock","underlying_shares":5132},"source":{"system":"sec-edgar","filing":"0001628280-26-052667","document":"wk-form4_1785876298.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1488139/000162828026052667/wk-form4_1785876298.xml","form_type":"4"}}]}