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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 (2) to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001488139-18-000021","document":"wf-form4_152175113464465.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813918000021/wf-form4_152175113464465.xml","form_type":"4"}},{"id":3985038,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2018-03-22T20:39:08.000Z","date":"2018-03-21","kind":"exercise","acquired":true,"shares":5000,"price":6.06,"value":30300.0,"ownership":{"direct":true},"balance_after":5000,"source":{"system":"sec-edgar","filing":"0001488139-18-000021","document":"wf-form4_152175113464465.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813918000021/wf-form4_152175113464465.xml","form_type":"4"}},{"id":4298115,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Stock Option (right to purchase)","published_at":"2017-06-01T21:15:52.000Z","date":"2017-05-30","kind":"exercise","acquired":false,"shares":23175,"price":4.22,"value":97798.5,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Of the shares subject to the option, 20% vested on July 25, 2008, and the remainder vested in 16 equal quarterly installments thereafter."}],"balance_after":0,"derivative":{"exercise_price":4.22,"expiration_date":"2017-07-25","underlying":"Class A Common Stock","underlying_shares":23175},"source":{"system":"sec-edgar","filing":"0001488139-17-000032","document":"wf-form4_149635173771283.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000032/wf-form4_149635173771283.xml","form_type":"4"}},{"id":4298114,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2017-06-01T21:15:52.000Z","date":"2017-05-30","kind":"sale","acquired":false,"shares":23175,"price":6.61,"value":153186.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.50 to $6.83, 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 sold at each separate price within the range set forth in this footnote (2) to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001488139-17-000032","document":"wf-form4_149635173771283.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000032/wf-form4_149635173771283.xml","form_type":"4"}},{"id":4298113,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2017-06-01T21:15:52.000Z","date":"2017-05-30","kind":"exercise","acquired":true,"shares":23175,"price":4.22,"value":97798.5,"ownership":{"direct":true},"balance_after":23175,"source":{"system":"sec-edgar","filing":"0001488139-17-000032","document":"wf-form4_149635173771283.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000032/wf-form4_149635173771283.xml","form_type":"4"}},{"id":4313628,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Stock Option (right to purchase)","published_at":"2017-05-18T21:26:31.000Z","date":"2017-05-16","kind":"exercise","acquired":false,"shares":23175,"price":4.22,"value":97798.5,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Of the shares subject to the option, 20% vested on July 25, 2008, and the remainder vested in 16 equal quarterly installments thereafter."}],"balance_after":23175,"derivative":{"exercise_price":4.22,"expiration_date":"2017-07-25","underlying":"Class A Common Stock","underlying_shares":23175},"source":{"system":"sec-edgar","filing":"0001488139-17-000029","document":"wf-form4_149514277655274.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000029/wf-form4_149514277655274.xml","form_type":"4"}},{"id":4313627,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2017-05-18T21:26:31.000Z","date":"2017-05-16","kind":"sale","acquired":false,"shares":23175,"price":6.65,"value":154113.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.60 to $6.75, 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 sold at each separate price within the range set forth in this footnote (2) to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001488139-17-000029","document":"wf-form4_149514277655274.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000029/wf-form4_149514277655274.xml","form_type":"4"}},{"id":4313626,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2017-05-18T21:26:31.000Z","date":"2017-05-16","kind":"exercise","acquired":true,"shares":23175,"price":4.22,"value":97798.5,"ownership":{"direct":true},"balance_after":23175,"source":{"system":"sec-edgar","filing":"0001488139-17-000029","document":"wf-form4_149514277655274.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000029/wf-form4_149514277655274.xml","form_type":"4"}},{"id":4333359,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Stock Option (right to purchase)","published_at":"2017-05-04T21:01:54.000Z","date":"2017-05-02","kind":"exercise","acquired":false,"shares":23175,"price":4.22,"value":97798.5,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Of the shares subject to the option, 20% vested on July 25, 2008, and the remainder vested in 16 equal quarterly installments thereafter."}],"balance_after":46350,"derivative":{"exercise_price":4.22,"expiration_date":"2017-07-25","underlying":"Class A Common Stock","underlying_shares":23175},"source":{"system":"sec-edgar","filing":"0001488139-17-000027","document":"wf-form4_149393170001730.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000027/wf-form4_149393170001730.xml","form_type":"4"}},{"id":4333358,"issuer":{"id":4847,"kind":"organization","name":"Ameresco, Inc.","symbol":"AMRC"},"owners":[{"id":45979,"kind":"person","name":"Maltezos Louis P","position":1,"cik":"0001496402","reported_name":"Maltezos Louis P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Class A Common Stock","published_at":"2017-05-04T21:01:54.000Z","date":"2017-05-02","kind":"sale","acquired":false,"shares":23175,"price":6,"value":139050.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.80 to $6.95, 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 sold at each separate price within the range set forth in this footnote (2) to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001488139-17-000027","document":"wf-form4_149393170001730.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1496402/000148813917000027/wf-form4_149393170001730.xml","form_type":"4"}}],"next_cursor":"2017-05-04T21:01:54.000000Z,4333358"}