X0508 4 2026-01-01 0001167419 Riot Platforms, Inc. RIOT 0001721702 Les Jason C/O RIOT PLATFORMS, INC. 3855 AMBROSIA STREET, SUITE 301 CASTLE ROCK CO 80109 true true false false CEO 0 Common Stock 2026-01-01 4 A 0 473559 0 A 7726803 D Common Stock 2026-01-01 4 A 0 947118 0 A 8673921 D Common Stock 769911 I See Footnote Represents the award of service-based restricted shares under the Issuer's Long-Term Incentive Program ("LTIP"). These shares are eligible to vest, if at all, in three approximately equal tranches as of January 1, 2027, January 1, 2028, and January 1, 2029, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date. Represents an award of performance-based restricted shares under the LTIP at the maximum achievable amount of up to 200% of the award target amount of 473,559 shares. Such shares are eligible to vest, if at all, at the end of the three-year performance period from January 1, 2026 through December 31, 2028, upon certification by the Compensation and Human Resources Committee, and subject to the Reporting Persons continued service with the Issuer through January 1, 2029. Shares held of record in trust by Jason M. Les, Trustee of The Jason M. Les Trust, dated March 8, 2021. /s/ Tanya McGill, Attorney-in-Fact for Jason Les 2026-01-05