RIOT BLOCKCHAIN 24 HOUR DEADLINE ALERT

Approximately 24 Hours Remain; ClaimsFiler Reminds Investors of Deadline in Class Action Lawsuit Against Riot Blockchain, Inc. - RIOT

ClaimsFiler, a FREE shareholder information service, reminds investors that they have only until April 18, 2018 to file lead plaintiff applications in securities class action lawsuits against Riot Blockchain, Inc. (NasdaqCM: RIOT). Investor losses must relate to purchases of the Company’s securities between the expanded period of October 4, 2017 and February 15, 2018, inclusive (the “Class Period”). These actions are pending in the United States District Courts for the Districts of New Jersey, Colorado and Southern District of Florida.

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Riot investors should visit us at https://www.claimsfiler.com/cases/view-riot-blockchain-inc-fka-bioptix ... or call to speak to our claim center toll-free at [phone].

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ClaimsFiler has a single mission: to serve as the information source to help retail investors recover their share of billions of dollars from securities class action settlements. ClaimsFiler's team of experts monitor the securities class action landscape and cull information from a variety of sources to ensure comprehensive coverage across a broad range of financial instruments.

To learn more about ClaimsFiler, visit www.claimsfiler.com.

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