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The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 121,857 restricted stock units (\"RSUs\"). 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The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 121,857 restricted stock units (\"RSUs\"). 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Each RSU represents the right to receive one share of common stock upon vesting. The RSUs will vest as to 25% of the original number of shares on each of February 1, 2020, February 1, 2021, February 1, 2022, and February 1, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 121,857 RSUs (including the 25,334 RSUs described in footnote 3). 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The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."}],"balance_after":182913,"source":{"system":"sec-edgar","filing":"0001651235-18-000071","document":"wf-form4_152123504769516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000071/wf-form4_152123504769516.xml","form_type":"4"}},{"id":3992640,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-03-16T21:17:43.000Z","date":"2018-03-14","kind":"sale","acquired":false,"shares":1800,"price":44.3886,"value":79899.48,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $44.33 to $44.47, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 154,021 restricted stock units (\"RSUs\"). Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":757011,"source":{"system":"sec-edgar","filing":"0001651235-18-000071","document":"wf-form4_152123504769516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000071/wf-form4_152123504769516.xml","form_type":"4"}},{"id":3992639,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-03-16T21:17:43.000Z","date":"2018-03-14","kind":"sale","acquired":false,"shares":4620,"price":43.9484,"value":203041.608,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $43.33 to $44.30, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 154,021 restricted stock units (\"RSUs\"). Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":758811,"source":{"system":"sec-edgar","filing":"0001651235-18-000071","document":"wf-form4_152123504769516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000071/wf-form4_152123504769516.xml","form_type":"4"}},{"id":3992638,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-03-16T21:17:43.000Z","date":"2018-03-14","kind":"sale","acquired":false,"shares":1200,"price":42.9543,"value":51545.16,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $42.33 to $43.23, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 154,021 restricted stock units (\"RSUs\"). Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":763431,"source":{"system":"sec-edgar","filing":"0001651235-18-000071","document":"wf-form4_152123504769516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000071/wf-form4_152123504769516.xml","form_type":"4"}},{"id":4052093,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-02-16T22:10:42.000Z","date":"2018-02-14","kind":"sale","acquired":false,"shares":1898,"price":38.4768,"value":73028.9664,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported were used to pay tax withholding in connection with the vesting of restricted stock units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 154,021 RSUs. Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":764631,"source":{"system":"sec-edgar","filing":"0001651235-18-000034","document":"wf-form4_151881902633147.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000034/wf-form4_151881902633147.xml","form_type":"4"}},{"id":4068635,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-02-09T21:47:47.000Z","date":"2018-02-07","kind":"grant","acquired":true,"shares":36084,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Consists of 36,084 restricted stock units (\"RSUs\").  Each RSU represents the right to receive one share of common stock upon vesting. The RSUs will vest as to 25% of the original number of shares on each of February 1, 2019, February 1, 2020, February 1, 2021, and February 1, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 160,119 RSUs (including the 36,084 RSUs described in footnote 1). Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":766529,"source":{"system":"sec-edgar","filing":"0001651235-18-000020","document":"wf-form4_151821285313353.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000020/wf-form4_151821285313353.xml","form_type":"4"}},{"id":4102096,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-01-10T22:09:44.000Z","date":"2018-01-09","kind":"sale","acquired":false,"shares":540,"price":38.111,"value":20579.94,"ownership":{"direct":false,"nature":"By The Shanmugaraj Irrevocable Children's Trust"},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Shanmugaraj Irrevocable Children's Trust on  November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $38.00 to $38.25, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."}],"balance_after":183605,"source":{"system":"sec-edgar","filing":"0001651235-18-000008","document":"wf-form4_151562217091498.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000008/wf-form4_151562217091498.xml","form_type":"4"}},{"id":4102095,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-01-10T22:09:44.000Z","date":"2018-01-09","kind":"sale","acquired":false,"shares":540,"price":38.111,"value":20579.94,"ownership":{"direct":false,"nature":"By The Malini Shanmugaraj 2016 QTIP Trust"},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Malini Shanmugaraj 2016 QTIP Trust on  November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $38.00 to $38.25, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."}],"balance_after":168942,"source":{"system":"sec-edgar","filing":"0001651235-18-000008","document":"wf-form4_151562217091498.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000008/wf-form4_151562217091498.xml","form_type":"4"}},{"id":4102094,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-01-10T22:09:44.000Z","date":"2018-01-09","kind":"sale","acquired":false,"shares":1620,"price":38.111,"value":61739.82,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $38.00 to $38.25, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 124,035 restricted stock units (\"RSUs\"). Each RSU represents the right to receive one share of common stock upon vesting."}],"balance_after":730445,"source":{"system":"sec-edgar","filing":"0001651235-18-000008","document":"wf-form4_151562217091498.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000008/wf-form4_151562217091498.xml","form_type":"4"}},{"id":4102093,"issuer":{"id":141855,"kind":"organization","name":"Acacia Communications, Inc.","symbol":"ACIA"},"owners":[{"id":45245,"kind":"person","name":"Shanmugaraj Murugesan","position":1,"cik":"0001659714","reported_name":"Shanmugaraj Murugesan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2018-01-10T22:09:44.000Z","date":"2018-01-08","kind":"sale","acquired":false,"shares":855,"price":38.334,"value":32775.57,"ownership":{"direct":false,"nature":"By The Shanmugaraj Irrevocable Children's Trust"},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Shanmugaraj Irrevocable Children's Trust on  November 10, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $38.10 to $38.62, inclusive; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the registrant, or a security holder of the registrant."}],"balance_after":184145,"source":{"system":"sec-edgar","filing":"0001651235-18-000008","document":"wf-form4_151562217091498.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1659714/000165123518000008/wf-form4_151562217091498.xml","form_type":"4"}}],"next_cursor":"2018-01-10T22:09:44.000000Z,4102093"}