William Richard Jackman

Companies

• Riot Platforms, Inc.General counsel Jul 15, 2021 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Riot Platforms, Inc. RIOT2,853,105 shares²$43.6M at $15.29Jan 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jan 1, 2026Granted 394,632 shares of Riot Platforms, Inc.²
• Jan 1, 2026Granted 197,316 shares of Riot Platforms, Inc.²
• Sep 10, 2025Sold 248,168 shares at $15.78 of Riot Platforms, Inc.³
• Sep 10, 2025Sold 248,168 shares at $15.78 of Riot Platforms, Inc.⁴
• Jul 1, 2024Granted 502,512 shares of Riot Platforms, Inc.⁵
• Jul 1, 2024Granted 251,256 shares of Riot Platforms, Inc.⁵
• Feb 22, 2024Returned to company 192,000 shares of Riot Platforms, Inc.⁶
• Jan 3, 2024Granted 1,000,000 shares of Riot Platforms, Inc.⁷
• Dec 8, 2023Sold 57,000 shares at $15.68 of Riot Platforms, Inc.⁸
• Jul 13, 2023Granted 246,426 shares of Riot Platforms, Inc.⁹
• Jul 13, 2023Granted 123,213 shares of Riot Platforms, Inc.⁹
• Jun 2, 2023Sold 371,471 shares at $12.13 of Riot Platforms, Inc.¹⁰
• Jan 11, 2023Shares withheld for tax 12,000 shares at $4.22 of Riot Platforms, Inc.¹¹
• Dec 15, 2022Sold 25,000 shares at $4.00 of Riot Platforms, Inc.¹²
• Sep 27, 2022Granted 742,942 shares of Riot Platforms, Inc.¹³
• Sep 27, 2022Exercised options 242,000 shares of Riot Platforms, Inc.¹³
• Sep 12, 2022Shares withheld for tax 27,657 shares at $8.26 of Riot Platforms, Inc.¹⁴
• Sep 12, 2022Exercised options 55,315 shares of Riot Platforms, Inc.¹⁴
• Aug 2, 2022Returned to company 6,000 shares at $7.32 of Riot Platforms, Inc.¹⁵
• Aug 2, 2022Exercised options 12,000 shares of Riot Platforms, Inc.¹⁵
• Mar 16, 2022Returned to company 1,063 shares at $14.16 of Riot Platforms, Inc.¹⁶
• Mar 16, 2022Exercised options 2,658 shares of Riot Platforms, Inc.¹⁶
• Dec 7, 2021Returned to company 1,063 shares at $28.64 of Riot Platforms, Inc.¹⁷
• Dec 7, 2021Exercised options 2,657 shares of Riot Platforms, Inc.¹⁷
• Dec 7, 2021Returned to company 14,400 shares at $28.64 of Riot Platforms, Inc.¹⁷