Stephen Cotton
Chief Executive Officer at Aqua Metals 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: Aqua Metals 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.
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Aqua Metals Inc. August 18, 202693.8%
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Aqua Metals Inc. July 22, 202588.6%
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Aqua Metals Inc. May 23, 202494.8%
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Aqua Metals Inc. June 15, 202394.7%
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 24, 2026 | Aqua Metals Inc. | Grant or award | +104,818 | — | — |
| Aug 19, 2026 | Aqua Metals Inc. | Shares withheld for tax | −3,305 | $2.67 | $8,824 |
| Jul 1, 2026 | Aqua Metals Inc. | Shares withheld for tax | −2,402 | $2.97 | $7,134 |
| Apr 13, 2026 | Aqua Metals Inc. | Shares withheld for tax | −2,352 | $3.92 | $9,220 |
| Feb 24, 2026 | Aqua Metals Inc. | Shares withheld for tax | −3,307 | $4.76 | $15,741 |
| Feb 13, 2026 | Aqua Metals Inc. | Grant or award | +79,873 | $4.72 | $377,001 |
| Jan 7, 2026 | Aqua Metals Inc. | Sold back to the company | −2,100 | — | — |
| Jan 2, 2026 | Aqua Metals Inc. | Shares withheld for tax | −3,208 | $4.80 | $15,398 |
| Dec 18, 2025 | Aqua Metals Inc. | Grant or award | +14,749 | — | — |
| Dec 18, 2025 | Aqua Metals Inc. | Shares withheld for tax | −6,247 | $5.46 | $34,109 |
| Oct 13, 2025 | Aqua Metals Inc. | Grant or award | +33,320 | $9.58 | $319,206 |
| Sep 19, 2025 | Aqua Metals Inc. | Grant or award | +11,250 | — | — |
| Sep 19, 2025 | Aqua Metals Inc. | Shares withheld for tax | −4,765 | $4.12 | $19,632 |
| Aug 20, 2025 | Aqua Metals Inc. | Shares withheld for tax | −1,920 | $3.68 | $7,066 |
| Aug 19, 2025 | Aqua Metals Inc. | Grant or award | +46,824 | $3.95 | $184,955 |
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