Aqua Metals, Inc. (AQMS) has 20 known insider and institutional holders on record. The largest holder is Clarke Stephen R. with 1,030,856 shares. Other notable holders include Mould Selwyn and McMurtry David.
Over the last 12 months, insiders have made 29 transactions in AQMS stock — 13 buys (valued at $1.46M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
AQMS Insider Ownership
Top Holder
Clarke Stephen R.
1,030,856 shares
Buys (12 mo)
13
$1.46M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Clarke Stephen R. |
President & CEO |
1,030,856 |
2018-02-23 |
|
| 2 |
Mould Selwyn |
Chief Operating Officer |
725,455 |
2017-05-02 |
|
| 3 |
Mcmurtry David |
Chief Business Officer |
686,277 |
2024-07-03 |
|
| 4 |
Murphy Thomas Michael |
Chief Financial Officer |
674,624 |
2018-03-06 |
|
| 5 |
Interstate Batteries, Inc. |
10 Percent Owner |
506,327 |
2017-05-10 |
|
| 6 |
Smith Edward J |
Director |
357,546 |
2024-07-03 |
|
| 7 |
Merrill Judd |
Chief Financial Officer |
244,119 |
2025-02-24 |
|
| 8 |
Cotton Stephen |
Chief Executive Officer |
222,025 |
2026-02-26 |
|
| 9 |
Kanen David |
Director |
158,297 |
2023-07-06 |
|
| 10 |
Francis Knuettel Ii |
Chief Financial Officer |
157,500 |
2018-06-18 |
|
| 11 |
Gangloff Eric John |
Director |
119,208 |
2025-05-08 |
|
| 12 |
Divito Vincent L |
Director |
107,619 |
2025-05-08 |
|
| 13 |
Zhang Peifang |
Director |
86,085 |
2025-05-08 |
|
| 14 |
Yi Sung |
Director |
75,000 |
2024-05-16 |
|
| 15 |
West Eric |
Chief Financial Officer |
65,921 |
2026-02-26 |
|
| 16 |
Henderson Steven K |
Director |
64,136 |
2025-05-08 |
|
| 17 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
58,780 |
2026-02-26 |
|
| 18 |
Slade Mark |
Director |
53,647 |
2019-01-03 |
|
| 19 |
Yosufzai S. Shariq |
Director |
31,516 |
2021-05-05 |
|
| 20 |
Stevenson Mark Wayne |
Director |
31,129 |
2019-07-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-24 |
West Eric |
Chief Financial Officer |
Tax Withholding of RSU |
1,214 |
$4.76 |
$5.78K |
| 2026-02-24 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
Tax Withholding of RSU |
1,006 |
$4.76 |
$4.79K |
| 2026-02-24 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
3,307 |
$4.76 |
$15.74K |
| 2026-02-13 |
West Eric |
Chief Financial Officer |
RSU Award |
28,390 |
$4.72 |
$134K |
| 2026-02-13 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
RSU Award |
23,306 |
$4.72 |
$110K |
| 2026-02-13 |
Cotton Stephen |
Chief Executive Officer |
RSU Award |
79,873 |
$4.72 |
$377K |
| 2026-01-07 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
Return of Shares |
1,329 |
- |
- |
| 2026-01-07 |
Cotton Stephen |
Chief Executive Officer |
Return of Shares |
4,530 |
- |
- |
| 2026-01-02 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
Tax Withholding of RSU |
979 |
$4.80 |
$4.7K |
| 2026-01-02 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
3,208 |
$4.80 |
$15.4K |
| 2025-12-18 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
6,247 |
$5.46 |
$34.11K |
| 2025-11-20 |
West Eric |
Chief Financial Officer |
Tax Withholding of RSU |
720 |
$9.80 |
$7.06K |
| 2025-10-13 |
West Eric |
Chief Financial Officer |
RSU Award |
12,224 |
$9.58 |
$117.11K |
| 2025-10-13 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
RSU Award |
10,132 |
$9.58 |
$97.06K |
| 2025-10-13 |
Cotton Stephen |
Chief Executive Officer |
RSU Award |
33,320 |
$9.58 |
$319.21K |
| 2025-09-19 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
4,765 |
$4.12 |
$19.63K |
| 2025-08-19 |
West Eric |
Chief Financial Officer |
RSU Award |
17,179 |
$3.95 |
$67.86K |
| 2025-08-20 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
Tax Withholding of RSU |
564 |
$3.68 |
$2.08K |
| 2025-08-19 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
RSU Award |
14,238 |
$3.95 |
$56.24K |
| 2025-08-20 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
1,920 |
$3.68 |
$7.07K |
| 2025-08-19 |
Cotton Stephen |
Chief Executive Officer |
RSU Award |
46,824 |
$3.95 |
$184.95K |
| 2025-07-01 |
Taecker Benjamin S. |
Chief Eng and Opr Officer |
Tax Withholding of RSU |
3,043 |
$0.49 |
$1.49K |
| 2025-07-01 |
Cotton Stephen |
Chief Executive Officer |
Tax Withholding of RSU |
9,301 |
$0.49 |
$4.56K |
| 2025-05-19 |
West Eric |
Chief Financial Officer |
Unknown |
- |
- |
- |
| 2024-05-14 |
West Eric |
Chief Financial Officer |
Unknown |
625 |
$7.80 |
$4.88K |
