FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Les Jason
2. Date of Event Requiring Statement (Month/Day/Year)
11/03/2017
3. Issuer Name and Ticker or Trading Symbol
Riot Blockchain, Inc. [RIOT]
(Last)
(First)
(Middle)
C/O RIOT BLOCKCHAIN, INC., 202 6TH STREET, SUITE 401
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CASTLE ROCK, CO 80104
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 7,500 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Les Jason
C/O RIOT BLOCKCHAIN, INC.
202 6TH STREET, SUITE 401
CASTLE ROCK, CO 80104
  X      

Signatures

/s/ Jason Les 11/08/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) 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.

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