Aqua Metals, Inc. (AQMS) Insider Ownership

Historic Insider Ownership Trends

As of April 28, 2026, Aqua Metals's top three insider holders are Stephen Cotton (Chief Executive Officer, 5.06Mn shares), Stephen Cotton (Chief Executive Officer, 5.06Mn shares), David Mcmurtry (Chief Business Officer, 686.28K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Stephen Cotton Chief Executive Officer 5,057,806 0 14 Dec, 2022
Stephen Cotton Chief Executive Officer 5,057,806 0 14 Dec, 2022
David Mcmurtry Chief Business Officer 686,277 0 03 Jul, 2024
David Mcmurtry Chief Business Officer 686,277 0 03 Jul, 2024
Judd Merrill Chief Financial Officer 482,249 0 06 Jul, 2021
Judd Merrill Chief Financial Officer 482,249 0 06 Jul, 2021
David Kanen - 0 468,325 30 Dec, 2022
Benjamin S. Taecker Chief Eng And Opr Officer 365,091 0 08 Jul, 2022
Edward J Smith - 357,546 0 03 Jul, 2024
Vincent L Divito - 247,408 0 04 May, 2022
Judd Merrill Chief Financial Officer 244,119 0 24 Feb, 2025
Judd Merrill Chief Financial Officer 244,119 0 24 Feb, 2025
Stephen Cotton Chief Executive Officer 222,025 0 26 Feb, 2026
Stephen Cotton Chief Executive Officer 219,673 0 15 Apr, 2026
David Kanen - 158,297 0 06 Jul, 2023
Eric John Gangloff - 119,208 0 08 May, 2025
Eric John Gangloff - 119,208 0 08 May, 2025
Vincent L Divito - 107,619 0 08 May, 2025
Sung Yi - 0 105,500 16 May, 2024
Sung Yi - 0 105,500 16 May, 2024
Peifang Zhang - 86,085 0 08 May, 2025
Peifang Zhang - 86,085 0 08 May, 2025
Peifang Zhang - 73,095 0 04 May, 2022
Edward J Smith - 73,095 0 04 May, 2022
Peifang Zhang - 73,095 0 04 May, 2022
Eric West Chief Financial Officer 65,921 0 26 Feb, 2026
Eric West Chief Financial Officer 65,058 0 15 Apr, 2026
Benjamin S. Taecker Chief Eng And Opr Officer 58,065 0 15 Apr, 2026
David Kanen - 28,223 0 05 Oct, 2022

* 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
13 Apr, 2026 Eric West Common Stock D 863 $3.92 65,058 D F
13 Apr, 2026 Benjamin S. Taecker Common Stock D 715 $3.92 58,065 D F
13 Apr, 2026 Stephen Cotton Common Stock D 2,352 $3.92 219,673 D F
24 Feb, 2026 Eric West Common Stock D 1,214 $4.76 65,921 D F
24 Feb, 2026 Benjamin S. Taecker Common Stock D 1,006 $4.76 58,780 D F
24 Feb, 2026 Eric West Common Stock D 1,214 $4.76 65,921 D F
24 Feb, 2026 Stephen Cotton Common Stock D 3,307 $4.76 222,025 D F
24 Feb, 2026 Stephen Cotton Common Stock D 3,307 $4.76 222,025 D F
13 Feb, 2026 Benjamin S. Taecker Common Stock A 23,306 $4.72 59,786 D A
13 Feb, 2026 Eric West Common Stock A 28,390 $4.72 67,135 D A
13 Feb, 2026 Stephen Cotton Common Stock A 79,873 $4.72 225,332 D A
13 Feb, 2026 Stephen Cotton Common Stock A 79,873 $4.72 225,332 D A
13 Feb, 2026 Eric West Common Stock A 28,390 $4.72 67,135 D A
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
07 Jan, 2026 Stephen Cotton Common Stock D 2,100 $0.00 145,459 D D
07 Jan, 2026 Stephen Cotton Performance Share Units D 1,510 $0.00 0 D D
07 Jan, 2026 Stephen Cotton Performance Share Units D 1,510 $0.00 0 D D
07 Jan, 2026 Benjamin S. Taecker Performance Share Units D 443 $0.00 0 D D
07 Jan, 2026 Stephen Cotton Performance Share Units D 1,510 $0.00 0 D D