Aqua Metals, Inc. (AQMS) Insider Trading
Directors, officers and holders of more than 10% of AQMS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 91 transactions on file: 0 with code P, 0 with code S and 50 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | West Eric | Chief Financial Officer | F Tax Payment | 863 | $1.92 | $1,657 |
| Oct 13, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | A Award | 10,429 | Not measured | Not measured |
| Oct 13, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 716 | $1.92 | $1,375 |
| Oct 13, 2026 | Cotton Stephen | Chief Executive Officer | A Award | 35,310 | Not measured | Not measured |
| Oct 13, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 2,352 | $1.92 | $4,516 |
| Oct 13, 2026 | West Eric | Chief Financial Officer | A Award | 12,583 | Not measured | Not measured |
| Aug 24, 2026 | HENDERSON STEVEN K | Director | A Award | 10,427 | Not measured | Not measured |
| Aug 24, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | A Award | 30,958 | Not measured | Not measured |
| Aug 24, 2026 | West Eric | Chief Financial Officer | A Award | 37,352 | Not measured | Not measured |
| Aug 24, 2026 | Cotton Stephen | Chief Executive Officer | A Award | 104,818 | Not measured | Not measured |
| Aug 24, 2026 | Gangloff Eric John | Director | A Award | 10,427 | Not measured | Not measured |
| Aug 24, 2026 | DIVITO VINCENT L | Director | A Award | 15,641 | Not measured | Not measured |
| Aug 19, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 3,305 | $2.67 | $8,824 |
| Aug 19, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 1,005 | $2.67 | $2,683 |
| Aug 19, 2026 | West Eric | Chief Financial Officer | F Tax Payment | 1,213 | $2.67 | $3,239 |
| Jul 1, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 2,402 | $2.97 | $7,134 |
| Jul 1, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 744 | $2.97 | $2,210 |
| May 19, 2026 | West Eric | Chief Financial Officer | F Tax Payment | 721 | $3.91 | $2,819 |
| Apr 13, 2026 | West Eric | Chief Financial Officer | F Tax Payment | 863 | $3.92 | $3,383 |
| Apr 13, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 715 | $3.92 | $2,803 |
| Apr 13, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 2,352 | $3.92 | $9,220 |
| Feb 24, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 1,006 | $4.76 | $4,789 |
| Feb 24, 2026 | West Eric | Chief Financial Officer | F Tax Payment | 1,214 | $4.76 | $5,779 |
| Feb 24, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 3,307 | $4.76 | $15,741 |
| Feb 13, 2026 | Cotton Stephen | Chief Executive Officer | A Award | 79,873 | $4.72 | $377,001 |
| Feb 13, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | A Award | 23,306 | $4.72 | $110,004 |
| Feb 13, 2026 | West Eric | Chief Financial Officer | A Award | 28,390 | $4.72 | $134,001 |
| Jan 7, 2026 | Cotton Stephen | Chief Executive Officer | D Disposition | 1,510 | Not measured | Not measured |
| Jan 7, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | D Disposition | 13 | Not measured | Not measured |
| Jan 7, 2026 | Cotton Stephen | Chief Executive Officer | D Disposition | 1,510 | Not measured | Not measured |
| Jan 7, 2026 | Cotton Stephen | Chief Executive Officer | D Disposition | 1,510 | Not measured | Not measured |
| Jan 7, 2026 | Cotton Stephen | Chief Executive Officer | D Disposition | 2,100 | Not measured | Not measured |
| Jan 7, 2026 | Cotton Stephen | Chief Executive Officer | D Disposition | 4,530 | Not measured | Not measured |
| Jan 7, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | D Disposition | 443 | Not measured | Not measured |
| Jan 7, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | D Disposition | 443 | Not measured | Not measured |
| Jan 7, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | D Disposition | 443 | Not measured | Not measured |
| Jan 7, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | D Disposition | 1,329 | Not measured | Not measured |
| Jan 2, 2026 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 3,208 | $4.80 | $15,398 |
| Jan 2, 2026 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 979 | $4.80 | $4,699 |
| Dec 18, 2025 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 6,247 | $5.46 | $34,109 |
| Dec 18, 2025 | Cotton Stephen | Chief Executive Officer | A Award | 14,749 | Not measured | Not measured |
| Nov 20, 2025 | West Eric | Chief Financial Officer | F Tax Payment | 720 | $9.80 | $7,056 |
| Oct 13, 2025 | Taecker Benjamin S. | Chief Eng and Opr Officer | A Award | 10,132 | $9.58 | $97,065 |
| Oct 13, 2025 | West Eric | Chief Financial Officer | A Award | 12,224 | $9.58 | $117,106 |
| Oct 13, 2025 | Cotton Stephen | Chief Executive Officer | A Award | 33,320 | $9.58 | $319,206 |
| Sep 19, 2025 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 4,765 | $4.12 | $19,632 |
| Sep 19, 2025 | Cotton Stephen | Chief Executive Officer | A Award | 11,250 | Not measured | Not measured |
| Aug 20, 2025 | Cotton Stephen | Chief Executive Officer | F Tax Payment | 1,920 | $3.68 | $7,066 |
| Aug 20, 2025 | Taecker Benjamin S. | Chief Eng and Opr Officer | F Tax Payment | 564 | $3.68 | $2,076 |
| Aug 19, 2025 | West Eric | Chief Financial Officer | A Award | 17,179 | $3.95 | $67,857 |
The full Form 4 history is on the AQMS company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.