Zachary Bradford
CEO and President at CleanSpark Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: CleanSpark Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
CleanSpark Inc. March 3, 202597.8%
-
CleanSpark Inc. March 11, 202499.6%
-
CleanSpark Inc. March 8, 202396.4%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 10, 2025 | CleanSpark Inc. | Grant or award | +1,728,688 | — | — |
| May 15, 2025 | CleanSpark Inc. | Shares withheld for tax | −10,533 | $9.21 | $97,009 |
| Feb 14, 2025 | CleanSpark Inc. | Open-market sale | −10,533 | $10.64 | $112,071 |
| Feb 13, 2025 | CleanSpark Inc. | Grant or award | +26,767 | — | — |
| Dec 20, 2024 | CleanSpark Inc. | Open-market sale | −12,000 | — | — |
| Sep 30, 2024 | CleanSpark Inc. | Grant or award | +535,332 | — | — |
| Sep 30, 2024 | CleanSpark Inc. | Shares withheld for tax | −84,261 | $9.34 | $786,998 |
| Sep 12, 2024 | CleanSpark Inc. | Option exercise | +450,000 | — | — |
| Sep 12, 2024 | CleanSpark Inc. | Shares withheld for tax | −177,075 | $9.25 | $1,637,944 |
| Mar 21, 2024 | CleanSpark Inc. | Open-market sale | −443,000 | $20.31 | $8,997,330 |
| Feb 27, 2024 | CleanSpark Inc. | Open-market sale | −363,900 | $21.00 | $7,641,900 |
| Feb 26, 2024 | CleanSpark Inc. | Option exercise | +300,000 | — | — |
| Feb 26, 2024 | CleanSpark Inc. | Shares withheld for tax | −118,050 | $20.35 | $2,402,318 |
| Feb 23, 2024 | CleanSpark Inc. | Option exercise | +300,000 | — | — |
| Feb 23, 2024 | CleanSpark Inc. | Shares withheld for tax | −118,050 | $16.43 | $1,939,562 |
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