Glancy Prongay & Murray LLP (“GPM”) files a class action on behalf of investors who purchased Acacia Communications, Inc. (“Acacia” or the “Company”) (NASDAQ: ACIA) securities between August 11, 2016 and July 13, 2017, inclusive (the “Class Period”). Acacia investors have until October 13, 2017 to file a lead plaintiff motion. To obtain information or participate in the class action, please visit the Acacia page on our website at www.glancylaw.com/case/acacia-communications-inc.

Investors suffering losses on their Acacia investments are encouraged to contact Lesley Portnoy of GPM to discuss their legal rights in this class action at 310-201-9150 or by email to shareholders@glancylaw.com.

The complaint filed in this class action alleges that throughout the Class Period, the Company made materially false and/or misleading statements, including misleading investors: (1) that the Company was experiencing declining demand for its products from important customers; (2) that the Company’s manufacturing quality control system was inadequate; (3) that, as a result, the Company’s manufacturing process was causing certain of the Company’s units to be unsaleable; and (4) that, as a result of the foregoing, Defendants’ statements about Acacia’s business, operations, and prospects, were false and misleading and/or lacked a reasonable basis.

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If you purchased shares of Acacia during the Class Period you may move the Court no later than October 13, 2017 to ask the Court to appoint you as lead plaintiff if you meet certain legal requirements. To be a member of the Class you need not take any action at this time; you may retain counsel of your choice or take no action and remain an absent member of the Class. If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Lesley Portnoy, Esquire, of GPM, 1925 Century Park East, Suite 2100, Los Angeles, California 90067 at 310-201-9150, Toll-Free at 888-773-9224, by email to shareholders@glancylaw.com, or visit our website at http://glancylaw.com. If you inquire by email please include your mailing address, telephone number and number of shares purchased.

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