Aqua Metals, Inc. (AQMS) Insider Ownership

Historic Insider Ownership Trends

According to recent filings covering the 90 days ending January 14, 2026, the three most significant insider holders at Aqua Metals are Chief Executive Officer Stephen Cotton (145.46K shares), Chief Financial Officer Eric West (38.74K shares), Chief Eng And Opr Officer Benjamin S. Taecker (36.48K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
David Mcmurtry Chief Business Officer 343 03 Jul, 2024
David Kanen 261 05 Jan, 2023
Edward J Smith 179 03 Jul, 2024
Judd Merrill Chief Financial Officer 24,412 24 Feb, 2025
Stephen Cotton Chief Executive Officer 145,459 09 Jan, 2026
Eric John Gangloff 11,921 08 May, 2025
Vincent L Divito 10,762 08 May, 2025
Sung Yi 53 16 May, 2024
Peifang Zhang 8,609 08 May, 2025
Steven K Henderson 6,414 08 May, 2025
Eric West Chief Financial Officer 38,745 24 Nov, 2025
Benjamin S. Taecker Chief Eng And Opr Officer 36,480 09 Jan, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
07 Jan, 2026 Stephen Cotton Common Stock D 2,100 $0.00 145,459 D D
07 Jan, 2026 Benjamin S. Taecker Common Stock D 13 $0.00 36,480 D D
02 Jan, 2026 Stephen Cotton Common Stock D 3,208 $4.80 147,559 D F
02 Jan, 2026 Benjamin S. Taecker Common Stock D 979 $4.80 36,493 D F
18 Dec, 2025 Stephen Cotton Common Stock A 14,749 $0.00 157,014 D A
18 Dec, 2025 Stephen Cotton Common Stock D 6,247 $5.46 150,767 D F
20 Nov, 2025 Eric West Common Stock D 720 $9.80 38,745 D F
13 Oct, 2025 Stephen Cotton Common Stock A 33,320 $9.58 142,265 D A
13 Oct, 2025 Benjamin S. Taecker Common Stock A 10,132 $9.58 37,472 D A
13 Oct, 2025 Eric West - - 39,465 D
13 Oct, 2025 Eric West Common Stock A 12,224 $9.58 39,465 D A
19 Sep, 2025 Stephen Cotton Common Stock A 11,250 $0.00 115,369 D A
19 Sep, 2025 Stephen Cotton Common Stock D 4,765 $4.12 110,604 D F
20 Aug, 2025 Stephen Cotton Common Stock D 1,920 $3.68 104,119 D F
20 Aug, 2025 Benjamin S. Taecker Common Stock D 564 $3.68 28,315 D F
19 Aug, 2025 Stephen Cotton Common Stock A 46,824 $3.95 106,039 D A
19 Aug, 2025 Benjamin S. Taecker Common Stock A 14,238 $3.95 28,879 D A
19 Aug, 2025 Eric West Common Stock A 17,179 $3.95 27,241 D A
01 Jul, 2025 Stephen Cotton Common Stock D 9,301 $0.49 59,215 D F
01 Jul, 2025 Benjamin S. Taecker Common Stock D 3,043 $0.49 14,643 D F