Sec Form 4 Filing - Brooks Megan M. @ Riot Blockchain, Inc. - 2022-02-17

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Brooks Megan M. 2. Issuer Name and Ticker or Trading Symbol Riot Blockchain, Inc. [ RIOT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) C/O RIOT BLOCKCHAIN, INC., 3855 AMBROSIA STREET, SUITE 301 3. Date of Earliest Transaction (MM/DD/YY) 02/17/2022 (Street) CASTLE ROCK, CO80109 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/17/2022 M 40,000 A $ 0( 1 ) 109,462( 2 ) D Common Stock 02/17/2022 F 12,000( 3 ) D $ 19.73 97,462( 2 ) D Common Stock 02/17/2022 M 3,000 A $ 0( 1 ) 100,462( 2 ) D Common Stock 02/17/2022 F 900( 3 ) D $ 19.73 99,562( 2 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transacti on(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units $ 0 02/17/2022 M 40,000 ( 4 ) ( 4 ) Common Stock 40,000 $ 0( 2 ) 9,000( 3 ) D Restricted Stock Units $ 0 02/17/2022 M 3,000 ( 5 ) ( 5 ) Common Stock 3,000 $ 0( 2 ) 6,000( 3 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Brooks Megan M. C/O RIOT BLOCKCHAIN, INC. 3855 AMBROSIA STREET, SUITE 301 CASTLE ROCK, CO80109 Chief Operating Officer Signatures /s/ Megan M. Brooks 02/22/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Vested Restricted Stock Units ("RSUs") awarded to the Reporting Person as compensation under the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") are convertible into shares of the Issuer's common stock, no par value per share, ("Common Stock") on a one-for-one basis, subject to any net settlement permitted under the Plan, upon settlement by the Issuer in accordance with the procedures of the Plan. ( 2 )Represents the total direct and indirect ownership of the indicated security held by the Reporting Person immediately following the reported transaction. ( 3 )Represents net settlement in connection with the conversion of vested RSUs into shares of the Issuer's Common Stock based on the price per share of the Issuer's Common Stock as of the conversion, as permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"). ( 4 )Represents the settlement by the Issuer of 40,000 vested performance-based RSUs, which vested upon the Committee's certification of the Issuer's achievement of certain of the performance objectives detailed in the August 12, 2021 performance-based equity award agreement between the Reporting Person and the Issuer. ( 5 )Represents the settlement by the Issuer the vested portion of the 6,000 time-based RSUs granted to the Reporting Person under the Plan on April 6, 2021, pursuant to the Reporting Person's Executive Employment Agreement with the Issuer, which vested in equal quarterly intervals following the grant date, and the 6,000 time-based RSUs granted to the Reporting Person on November 11, 2021 pursuant to an amendment to the Reporting Person's Executive Employment Agreement with the Issuer.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(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).

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