RIOT

SEC source: 0001079973-22-000878 · ownership.xml · nonDerivative · entry 3

Harris Chad Everett · CIK 0001863770 · EVP, CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,365

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain Inc. 2019 Equity Incentive Plan, as amended (the "Equity Plan") each service-based restricted stock unit ("RSUs") and each performance-based restricted stock units ("PSUs) represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000878 · ownership.xml · nonDerivative · entry 2

Harris Chad Everett · CIK 0001863770 · EVP, CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,365

F3 · shares: Represents net settlement for taxes due in connection with the conversion reported on the foregoing line of this report.

F2 · balance_after: Represents the total direct and indirect ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000878 · ownership.xml · nonDerivative · entry 1

Harris Chad Everett · CIK 0001863770 · EVP, CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,111

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain Inc. 2019 Equity Incentive Plan, as amended (the "Equity Plan") each service-based restricted stock unit ("RSUs") and each performance-based restricted stock units ("PSUs) represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000853 · ownership.xml · derivative · entry 1

YI SOO IL BENJAMIN · CIK 0001757880 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,416

Underlying: Common Stock · 16,666 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the eported transaction.

SEC source: 0001079973-22-000852 · ownership.xml · derivative · entry 1

Les Jason · CIK 0001721702 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,666

Underlying: Common Stock · 16,666 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the eported transaction.

SEC source: 0001079973-22-000850 · ownership.xml · derivative · entry 1

Jackman William Richard · CIK 0001872927 · EVP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,321

Underlying: Common Stock · 12,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the eported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · derivative · entry 11

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F7 · derivative.exercise_date: This conversion represents the settlement by the Issuer following vesting of the remaining third of the 75,000 RSUs granted under the Equity Plan to the Reporting Person on March 21, 2022, as compensation for services performed under the Separation Agreement.

F7 · derivative.expiration_date: This conversion represents the settlement by the Issuer following vesting of the remaining third of the 75,000 RSUs granted under the Equity Plan to the Reporting Person on March 21, 2022, as compensation for services performed under the Separation Agreement.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · derivative · entry 10

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 1,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F6 · derivative.exercise_date: This conversion represents the settlement by the Issuer following vesting of the remaining 1,500 RSUs of the 6,000 RSUs awarded to the Reporting Person under the Equity Plan on November 5, 2021. Pursuant to the separation and release agreement, dated as of March 21, 2022, between the Reporting person and the Issuer (the "Separation Agreement"), the vesting of these 1,500 RSUs was accelerated to the end of the transition services period specified under the Separation Agreement, as permitted under the Equity Plan and approved by the Committee.

F6 · derivative.expiration_date: This conversion represents the settlement by the Issuer following vesting of the remaining 1,500 RSUs of the 6,000 RSUs awarded to the Reporting Person under the Equity Plan on November 5, 2021. Pursuant to the separation and release agreement, dated as of March 21, 2022, between the Reporting person and the Issuer (the "Separation Agreement"), the vesting of these 1,500 RSUs was accelerated to the end of the transition services period specified under the Separation Agreement, as permitted under the Equity Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · derivative · entry 9

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,500

Underlying: Common Stock · 1,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F5 · derivative.exercise_date: This conversion represents the settlement by the Issuer following vesting of 1,500 RSUs of the 6,000 RSUs awarded to the Reporting Person under the Equity Plan on November 5, 2021, which were eligible to vest in four approximately equal quarterly installments following the grant date, subject to the terms of the Equity Plan and the applicable award agreement.

F5 · derivative.expiration_date: This conversion represents the settlement by the Issuer following vesting of 1,500 RSUs of the 6,000 RSUs awarded to the Reporting Person under the Equity Plan on November 5, 2021, which were eligible to vest in four approximately equal quarterly installments following the grant date, subject to the terms of the Equity Plan and the applicable award agreement.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 8

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,596

F3 · shares: Represents net settlement for taxes due in connection with the conversion reported on the foregoing line of this report.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 7

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,595

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents the vesting and settlement by the Issuer of 13,333 PSUs, representing the vested portion of the PSUs awarded to the Reporting Person on August 12, 2021 under the performance incentive plan adopted by the Committee under the Equity Plan (the "Performance Plan"). These PSUs vested and became eligible to be settled in shares of Common Stock as of July 13, 2022 upon the Committee's certification of the Issuer's achievement, as of June 30, 2022, of certain performance milestones specified by the Committee under the Performance Plan.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 6

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,262

F3 · shares: Represents net settlement for taxes due in connection with the conversion reported on the foregoing line of this report.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 5

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 177,762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 4

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,762

F3 · shares: Represents net settlement for taxes due in connection with the conversion reported on the foregoing line of this report.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 3

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,212

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 2

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,712

F3 · shares: Represents net settlement for taxes due in connection with the conversion reported on the foregoing line of this report.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000848 · ownership.xml · nonDerivative · entry 1

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,162

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each service-based restricted stock unit ("RSUs") and performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") following vesting and settlement by the Issuer. Under the Equity Plan, the Issuer may elect to satisfy any tax withholding obligations due in connection with the conversion of vested RSUs and PSUs via net settlement of the vested award by withholding shares of Common Stock to cover the tax due, as permitted under the Equity Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000849 · ownership.xml · derivative · entry 1

Harris Chad Everett · CIK 0001863770 · EVP, CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,488

Underlying: Common Stock · 12,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000851 · ownership.xml · derivative · entry 1

Les Jason · CIK 0001721702 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,416

Underlying: Common Stock · 16,666 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 16,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 16,666 Restricted Stock Units reported on this Form 4 represents the vesting of 16,666 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the eported transaction.

SEC source: 0001079973-22-000862 · ownership.xml · derivative · entry 1

Theriot Lyle Joseph · CIK 0001864143 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,488

Underlying: Common Stock · 12,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 12,000 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 12,000 Restricted Stock Units reported on this Form 4 represents the vesting of 12,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000860 · ownership.xml · derivative · entry 1

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,666

Underlying: Common Stock · 14,666 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · shares: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 14,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 14,666 Restricted Stock Units reported on this Form 4 represents the vesting of 14,666 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Equity Plan") each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") upon settlement by the Issuer following vesting. PSUs are subject to vesting under the performance plan established by the Issuer's Compensation and Human Resources Committee (the "Committee") under the Equity Plan, (the "Performance Plan") in connection with the Issuer's achievement of certain performance milestones specified by the Committee during the performance period expiring on December 31, 2023.

F2 · derivative.exercise_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 14,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 14,666 Restricted Stock Units reported on this Form 4 represents the vesting of 14,666 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On July 13, 2022, the Committee determined that the Issuer had achieved, as of June 30, 2022, the performance criteria corresponding to 14,666 PSUs. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Performance Plan and as approved by the Committee. Accordingly, the award of 14,666 Restricted Stock Units reported on this Form 4 represents the vesting of 14,666 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001553350-22-000558 · ownership.xml · derivative · entry 3

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: The settlement of 25,000 vested RSUs reported on this Form 4 represents the settlement of the vested portion of the 75,000 RSUs awarded to the Reporting Person on April 7, 2022, which are eligible to vest in three equal installments as of May 7, 2022, June 7, 2022, and July 7, 2022.

F4 · derivative.expiration_date: The settlement of 25,000 vested RSUs reported on this Form 4 represents the settlement of the vested portion of the 75,000 RSUs awarded to the Reporting Person on April 7, 2022, which are eligible to vest in three equal installments as of May 7, 2022, June 7, 2022, and July 7, 2022.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001553350-22-000558 · ownership.xml · nonDerivative · entry 2

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,662

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 25,000 vested RSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Issuer's Compensation and Human Resources Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001553350-22-000558 · ownership.xml · nonDerivative · entry 1

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,162

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · derivative · entry 6

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 68,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSU") and performance-based restrictive stock unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock, no par value per share ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F6 · derivative.exercise_date: The conversion of 68,000 PSUs reported in Table II represents the settling by the Issuer of the vested portion of the PSUs granted to the reporting person on August 12, 2021 pursuant to the Award Agreement.

F6 · derivative.expiration_date: The conversion of 68,000 PSUs reported in Table II represents the settling by the Issuer of the vested portion of the PSUs granted to the reporting person on August 12, 2021 pursuant to the Award Agreement.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · derivative · entry 5

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSU") and performance-based restrictive stock unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock, no par value per share ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F5 · derivative.exercise_date: The conversion of 10,000 RSUs reported in Table II represents the settling of the vested portion of the 20,000 RSUs awarded to the Reporting Person by the Issuer on February 8, 2021 pursuant to the terms of the executive employment agreement between the Issuer and the Reporting Person, dated effective as of the grant date, which vested in four equal quarterly installments following the grant date.

F5 · derivative.expiration_date: The conversion of 10,000 RSUs reported in Table II represents the settling of the vested portion of the 20,000 RSUs awarded to the Reporting Person by the Issuer on February 8, 2021 pursuant to the terms of the executive employment agreement between the Issuer and the Reporting Person, dated effective as of the grant date, which vested in four equal quarterly installments following the grant date.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · nonDerivative · entry 4

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,533

F4 · shares: Represents net settlement for taxes due in connection with the conversion of 68,000 vested PSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · nonDerivative · entry 3

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 365,413

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSU") and performance-based restrictive stock unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock, no par value per share ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · nonDerivative · entry 2

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,413

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 10,000 vested RSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000616 · ownership.xml · nonDerivative · entry 1

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,513

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSU") and performance-based restrictive stock unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock, no par value per share ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000614 · ownership.xml · derivative · entry 3

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: Represents the settlement by the Issuer of the vested portions of the RSUs granted to the Reporting Person on May 7, 2022, as reported on this Form 4.

F4 · derivative.expiration_date: Represents the settlement by the Issuer of the vested portions of the RSUs granted to the Reporting Person on May 7, 2022, as reported on this Form 4.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000614 · ownership.xml · nonDerivative · entry 2

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,162

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 25,000 vested RSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee").

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000614 · ownership.xml · nonDerivative · entry 1

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,662

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000483 · ownership.xml · derivative · entry 9

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F6 · derivative.exercise_date: Represents the settlement by the Issuer of the vested portion of the PSUs granted to the Reporting Person on August 12, 2021, as reported by the Form 4 filed by the Reporting Person on April 15, 2022.

F6 · derivative.expiration_date: Represents the settlement by the Issuer of the vested portion of the PSUs granted to the Reporting Person on August 12, 2021, as reported by the Form 4 filed by the Reporting Person on April 15, 2022.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · derivative · entry 8

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,000

Underlying: Common Stock · 1,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F5 · derivative.exercise_date: Represents the settlement by the Issuer of the vested and unsettled portion of the 6,000 RSUs granted to the Reporting Person on November 5, 2021, which vested in four quarterly installments after the grant date.

F5 · derivative.expiration_date: Represents the settlement by the Issuer of the vested and unsettled portion of the 6,000 RSUs granted to the Reporting Person on November 5, 2021, which vested in four quarterly installments after the grant date.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · derivative · entry 7

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,500

Underlying: Common Stock · 1,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F4 · derivative.exercise_date: Represents the settlement by the Issuer of the final quarterly tranche of 1,500 RSUs of the 6,000 RSUs granted to the Reporting Person on April 6, 2021, which vested in four quarterly installments after the grant date.

F4 · derivative.expiration_date: Represents the settlement by the Issuer of the final quarterly tranche of 1,500 RSUs of the 6,000 RSUs granted to the Reporting Person on April 6, 2021, which vested in four quarterly installments after the grant date.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 6

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,662

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 3,000 vested RSUs and 20,000 vested PSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 5

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,662

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 4

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,662

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 3,000 vested RSUs and 20,000 vested PSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 3

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,112

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 2

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,612

F3 · shares: Represents net settlement for taxes due in connection with the conversion of 3,000 vested RSUs and 20,000 vested PSUs into shares of the Issuer's Common Stock upon settlement by the Issuer, as permitted by the Plan and approved by the Committee.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000483 · ownership.xml · nonDerivative · entry 1

Brooks Megan M. · CIK 0001855229 · [See remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,062

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") each time-based restricted stock unit ("RSUs") and each performance-based restricted stock unit ("PSUs") represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · balance_after: Represents the total direct and indirect beneficial ownership of the security held by the Reporting Person immediately following the issuance reported by this Form 4.

SEC source: 0001079973-22-000437 · ownership.xml · derivative · entry 1

Theriot Lyle Joseph · CIK 0001864143 · see Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,488

Underlying: Common Stock · 14,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000438 · ownership.xml · derivative · entry 1

YI SOO IL BENJAMIN · CIK 0001757880 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,750

Underlying: Common Stock · 30,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 30,000 PSUs had been achieved as of March 31, 2022. Therefore, 30,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 30,000 Restricted Stock Units reported on this Form 4 represents the vesting of 30,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 30,000 PSUs had been achieved as of March 31, 2022. Therefore, 30,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 30,000 Restricted Stock Units reported on this Form 4 represents the vesting of 30,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000436 · ownership.xml · derivative · entry 1

MCGONEGAL JEFFREY · CIK 0001187604 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,000

Underlying: Common Stock · 24,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 24,000 PSUs had been achieved as of March 31, 2022. Therefore, 24,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 24,000 Restricted Stock Units reported on this Form 4 represents the vesting of 24,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 24,000 PSUs had been achieved as of March 31, 2022. Therefore, 24,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 24,000 Restricted Stock Units reported on this Form 4 represents the vesting of 24,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000435 · ownership.xml · derivative · entry 1

Les Jason · CIK 0001721702 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 30,000 PSUs had been achieved as of March 31, 2022. Therefore, 30,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 30,000 Restricted Stock Units reported on this Form 4 represents the vesting of 30,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 30,000 PSUs had been achieved as of March 31, 2022. Therefore, 30,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 30,000 Restricted Stock Units reported on this Form 4 represents the vesting of 30,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000433 · ownership.xml · derivative · entry 1

Harris Chad Everett · CIK 0001863770 · see Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,488

Underlying: Common Stock · 14,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000434 · ownership.xml · derivative · entry 1

Jackman William Richard · CIK 0001872927 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,321

Underlying: Common Stock · 14,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · derivative.exercise_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F2 · derivative.expiration_date: On April 13, 2022, the Committee determined that the performance criteria corresponding to 14,000 PSUs had been achieved as of March 31, 2022. Therefore, 14,000 of the PSUs originally awarded to the Reporting Person became vested as of April 13, 2022. Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes as permitted under the Plan and as approved by the Committee. Accordingly, the award of 14,000 Restricted Stock Units reported on this Form 4 represents the vesting of 14,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000432 · ownership.xml · derivative · entry 1

Brooks Megan M. · CIK 0001855229 · [See Remarks]

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F2 · shares: Pursuant to the separation and release agreement entered into between the Reporting person and the Issuer, dated as of March 21, 2022, (the "Separation Agreement") the Issuer agreed that, notwithstanding her resignation and separation from service, effective as of April 7, 2022, the Reporting Person would receive credit for any PSUs that vest in connection with the Issuer's achievement of performance criteria through the period ending March 31, 2022, as subsequently certified by the Committee. Therefore, upon the Committee's determination on April 13, 2022 that the Issuer had achieved, as of March 31, 2022, the corresponding performance criteria, 20,000 of the PSUs issued to the Reporting Person became vested under the Plan.

F3 · shares: Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes, as permitted under the Plan and as approved by the Committee. Accordingly, the award of 20,000 Restricted Stock Units reported on this Form 4 represents the vesting of 20,000 PSUs awarded to the Reporting Person on August 12, 2021.

F1 · price: Pursuant to the Riot Blockchain, Inc. 2019 Equity Incentive Plan, as amended, (the "Plan") the Reporting Person was granted performance-based restricted stock unit ("PSUs") as of August 12, 2021, which are eligible to vest contingent upon the Issuer's achievement of certain performance criteria during the performance period ending on December 31, 2023. Each PSU represents a contingent right to receive one share of the Issuer's common stock, no par value per share, ("Common Stock") subject to any net settlement permitted under the Plan and approved by the Issuer's Compensation and Human Resources Committee (the "Committee"), following vesting and settlement by the Issuer.

F3 · derivative.exercise_date: Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes, as permitted under the Plan and as approved by the Committee. Accordingly, the award of 20,000 Restricted Stock Units reported on this Form 4 represents the vesting of 20,000 PSUs awarded to the Reporting Person on August 12, 2021.

F3 · derivative.expiration_date: Upon vesting, the Issuer records PSUs as Restricted Stock Units, which are eligible to be settled by the Issuer in shares of its Common Stock on a one-for-one basis, subject to any net settlement for taxes, as permitted under the Plan and as approved by the Committee. Accordingly, the award of 20,000 Restricted Stock Units reported on this Form 4 represents the vesting of 20,000 PSUs awarded to the Reporting Person on August 12, 2021.

F4 · balance_after: Represents the total direct and indirect beneficial ownership of the indicated security held by the Reporting Person immediately following the reported transaction.

SEC source: 0001079973-22-000400 · ownership.xml · derivative · entry 1

Brooks Megan M. · CIK 0001855229 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,000

Underlying: Common Stock · 75,000 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · price: 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.

F2 · derivative.exercise_date: On April 7, 2022, the Issuer granted the Reporting Person an award of 75,000 RSUs under the Plan as compensation for her performance of the transition services specified under the separation and release agreement entered into between the Reporting person and the Issuer regarding her separation from service with the Reporting Person (the "Separation Agreement"). These 75,000 RSUs are eligible to vest in three equal monthly installments as of May 7, 2022, June 7, 2022, and July 7, 2022, subject to the terms and conditions of the Separation Agreement and the Plan.

F2 · derivative.expiration_date: On April 7, 2022, the Issuer granted the Reporting Person an award of 75,000 RSUs under the Plan as compensation for her performance of the transition services specified under the separation and release agreement entered into between the Reporting person and the Issuer regarding her separation from service with the Reporting Person (the "Separation Agreement"). These 75,000 RSUs are eligible to vest in three equal monthly installments as of May 7, 2022, June 7, 2022, and July 7, 2022, subject to the terms and conditions of the Separation Agreement and the Plan.

F3 · balance_after: Represents the total direct and indirect ownership of the indicated security held by the Reporting Person immediately following the reported transaction.