X0306 4 2017-11-03 0 0001167419 Riot Blockchain, Inc. RIOT 0001662216 Beeghley Michael Martin C/O RIOT BLOCKCHAIN, INC. 202 6TH STREET, SUITE 401 CASTLE ROCK CO 80104 0 0 0 1 Former CEO, Chairman Common Stock 2017-11-03 4 A 0 40000 0.00 A 177918 D Represents a restricted stock award under the Riot Blockchain, Inc. (f/k/a Bioptix, Inc.) Amended & Restated Equity Incentive Plan (the "Restricted Stock Award"), which was awarded and immediately vested in connection with the Reporting Person's execution of a Separation Agreement. Restricted Stock Award is compensation for the Reporting Person's resignation as Chief Executive Officer of the Issuer. Represents shares vested or to be vested within 60 days pursuant to restricted stock awards. /s/ Michael M. Beeghley 2017-11-07