S. Matthew Schultz
Executive Chairman 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, 202592.6%
-
CleanSpark Inc. March 11, 202495.8%
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 |
|---|---|---|---|---|---|
| Sep 8, 2026 | CleanSpark Inc. | Shares withheld for tax | −92,070 | $13.34 | $1,227,947 |
| Sep 8, 2026 | CleanSpark Inc. | Shares withheld for tax | −253,587 | $13.34 | $3,382,115 |
| Sep 4, 2026 | CleanSpark Inc. | Option exercise | +209,042 | — | — |
| Sep 4, 2026 | CleanSpark Inc. | Option exercise | +216,125 | — | — |
| Sep 4, 2026 | CleanSpark Inc. | Shares withheld for tax | −95,095 | $12.61 | $1,199,043 |
| Sep 4, 2026 | CleanSpark Inc. | Option exercise | +576,333 | — | — |
| Aug 14, 2026 | CleanSpark Inc. | Shares withheld for tax | −9,031 | $11.51 | $103,947 |
| Aug 13, 2026 | CleanSpark Inc. | Option exercise | +20,524 | — | — |
| May 14, 2026 | CleanSpark Inc. | Shares withheld for tax | −9,031 | $13.98 | $126,253 |
| May 13, 2026 | CleanSpark Inc. | Option exercise | +20,525 | — | — |
| Feb 18, 2026 | CleanSpark Inc. | Shares withheld for tax | −95,095 | $9.25 | $879,629 |
| Feb 18, 2026 | CleanSpark Inc. | Shares withheld for tax | −9,031 | $9.23 | $83,356 |
| Feb 13, 2026 | CleanSpark Inc. | Option exercise | +20,525 | — | — |
| Feb 13, 2026 | CleanSpark Inc. | Option exercise | +216,125 | — | — |
| Dec 5, 2025 | CleanSpark Inc. | Shares withheld for tax | −9,031 | $14.07 | $127,066 |
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