X0206 3 2017-11-03 0 0001167419 Riot Blockchain, Inc. RIOT 0001721702 Les Jason C/O RIOT BLOCKCHAIN, INC. 202 6TH STREET, SUITE 401 CASTLE ROCK CO 80104 1 0 0 0 Common Stock 7500 D Represents a restricted stock award under the Riot Blockchain, Inc. (f/k/a Bioptix, Inc.) Amended & Restated Equity Incentive Plan granted in connection with the Reporting Person's appointment as a Director of the Issuer, which shall vest in 24 equal monthly installments over a two year period, beginning on the one month anniversary of the date of issuance, subject to the reporting person's continued service with the Issuer on each respective vesting date. If, during the vesting period a Qualified Transaction occurs, as defined in the February 3, 2017 Board of Director minutes, the grant shall vest fully. /s/ Jason Les 2017-11-08