7 insiders reported 42 Form 4 transactions for Aqua Metals, Inc. (AQMS) over the past 18 months (most recent 2026-08-21). Recent activity: Cotton Stephen (Chief Executive Officer) Sell 3,305 shares, Taecker Benjamin S. (Chief Eng and Opr Officer) Sell 1,005 shares, West Eric (Chief Financial Officer) Sell 1,213 shares, Cotton Stephen (Chief Executive Officer) Sell 2,402 shares, Taecker Benjamin S. (Chief Eng and Opr Officer) Sell 744 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | Cotton Stephen | Chief Executive Officer | Sell | 3,305 | $8,824 |
| 2026-08-21 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 1,005 | $2,683 |
| 2026-08-21 | West Eric | Chief Financial Officer | Sell | 1,213 | $3,239 |
| 2026-07-07 | Cotton Stephen | Chief Executive Officer | Sell | 2,402 | $7,134 |
| 2026-07-07 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 744 | $2,210 |
| 2026-05-20 | West Eric | Chief Financial Officer | Sell | 721 | $2,819 |
| 2026-04-15 | Cotton Stephen | Chief Executive Officer | Sell | 2,352 | $9,220 |
| 2026-04-15 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 715 | $2,803 |
| 2026-04-15 | West Eric | Chief Financial Officer | Sell | 863 | $3,383 |
| 2026-02-26 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 1,006 | $4,789 |
| 2026-02-26 | West Eric | Chief Financial Officer | Sell | 1,214 | $5,779 |
| 2026-02-26 | Cotton Stephen | Chief Executive Officer | Sell | 3,307 | $15,741 |
| 2026-02-17 | Taecker Benjamin S. | Chief Eng and Opr Officer | Buy | 23,306 | $110,004 |
| 2026-02-17 | West Eric | Chief Financial Officer | Buy | 28,390 | $134,001 |
| 2026-02-17 | Cotton Stephen | Chief Executive Officer | Buy | 79,873 | $377,001 |
| 2026-01-09 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 13 | $0 |
| 2026-01-09 | Cotton Stephen | Chief Executive Officer | Sell | 2,100 | $0 |
| 2026-01-06 | Taecker Benjamin S. | Chief Eng and Opr Officer | Sell | 979 | $4,699 |
| 2026-01-06 | Cotton Stephen | Chief Executive Officer | Sell | 3,208 | $15,398 |
| 2025-12-22 | Cotton Stephen | Chief Executive Officer | Buy | 14,749 | $0 |
| 2025-12-22 | Cotton Stephen | Chief Executive Officer | Sell | 6,247 | $34,109 |
| 2025-11-24 | West Eric | Chief Financial Officer | Sell | 720 | $7,056 |
| 2025-10-15 | West Eric | Chief Financial Officer | Buy | 12,224 | $117,106 |
| 2025-10-15 | Taecker Benjamin S. | Chief Eng and Opr Officer | Buy | 10,132 | $97,065 |
| 2025-10-15 | Cotton Stephen | Chief Executive Officer | Buy | 33,320 | $319,206 |
Source: SEC Form 4 filings · as of 2026-08-21