Zachary Bradford

Companies

• CleanSparkChief executive officer Dec 26, 2019 to now¹
• CleanSparkBoard member Jul 8, 2016 to now²
• CleanSparkPresident Dec 26, 2019 to Sep 8, 2025¹
• CleanSparkChief financial officer Nov 18, 2014 to Jan 11, 2019³

Holdings

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

Shares held

• CleanSpark CLSK823,864 shares⁴$7.1M at $8.56Aug 11, 2025

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

Recent filings

• Aug 10, 2025Granted 1,728,688 shares of CleanSpark⁴
• May 15, 2025Shares withheld for tax 10,533 shares at $9.21 of CleanSpark⁵
• Feb 14, 2025Sold 10,533 shares at $10.64 of CleanSpark⁶
• Feb 13, 2025Granted 26,767 shares of CleanSpark⁶
• Dec 20, 2024Sold 12,000 shares of CleanSpark⁷
• Sep 30, 2024Shares withheld for tax 84,261 shares at $9.34 of CleanSpark⁸
• Sep 30, 2024Granted 535,332 shares of CleanSpark⁸
• Sep 12, 2024Shares withheld for tax 177,075 shares at $9.25 of CleanSpark⁹
• Sep 12, 2024Exercised options 450,000 shares of CleanSpark⁹
• Sep 12, 2024Shares withheld for tax 177,075 shares at $9.25 of CleanSpark¹⁰
• Mar 21, 2024Sold 443,000 shares at $20.31 of CleanSpark¹¹
• Feb 27, 2024Sold 363,900 shares at $21.00 of CleanSpark¹²
• Feb 26, 2024Shares withheld for tax 118,050 shares at $20.35 of CleanSpark¹²
• Feb 26, 2024Exercised options 300,000 shares of CleanSpark¹²
• Feb 23, 2024Shares withheld for tax 118,050 shares at $16.43 of CleanSpark¹²
• Feb 23, 2024Exercised options 300,000 shares of CleanSpark¹²
• Dec 20, 2023Shares withheld for tax 120,000 shares at $10.92 of CleanSpark¹³
• Dec 20, 2023Exercised options 300,000 shares of CleanSpark¹³
• Oct 26, 2023Shares withheld for tax 37,946 shares at $4.62 of CleanSpark¹⁴
• Oct 26, 2023Granted 96,432 shares of CleanSpark¹⁴
• Sep 20, 2023Shares withheld for tax 37,945 shares at $4.21 of CleanSpark¹⁵
• Sep 20, 2023Granted 96,427 shares of CleanSpark¹⁵
• Sep 12, 2023Shares withheld for tax 177,075 shares at $4.32 of CleanSpark¹⁶
• Aug 2, 2023Shares withheld for tax 37,944 shares at $5.84 of CleanSpark¹⁷
• Aug 2, 2023Granted 96,427 shares of CleanSpark¹⁷