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%
-
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 |
Questions about Stephen Cotton
What boards is Stephen Cotton on?
Stephen Cotton sits on the board of Aqua Metals Inc.
What company is Stephen Cotton the CEO of?
Stephen Cotton is Chief Executive Officer of Aqua Metals Inc.
How long has Stephen Cotton served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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