AQMS's three largest insider shareholders as of September 09, 2026 are Stephen Cotton (Chief Executive Officer, 5.06Mn shares), David Mcmurtry (Chief Business Officer, 686.28K shares), Judd Merrill (Chief Financial Officer, 482.25K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Stephen Cotton | Chief Executive Officer | 5,376,590 | 0 | 5,376,590 | 74.6% | 26 Aug, 2026 |
| 2 | Judd Merrill | Chief Financial Officer | 726,368 | 0 | 726,368 | 10.1% | 24 Feb, 2025 |
| 3 | David Mcmurtry | Chief Business Officer | 686,277 | 0 | 686,277 | 9.5% | 03 Jul, 2024 |
| 4 | Benjamin S. Taecker | Chief Eng And Opr Officer | 105,529 | 0 | 105,529 | 1.5% | 26 Aug, 2026 |
| 5 | Sung Yi | Director | 0 | 105,500 | 105,500 | 1.5% | 16 May, 2024 |
| 6 | Eric West | Chief Financial Officer | 100,476 | 0 | 100,476 | 1.4% | 26 Aug, 2026 |
| 7 | Vincent L Divito | Director | 38,772 | 0 | 38,772 | 0.5% | 26 Aug, 2026 |
| 8 | Eric John Gangloff | Director | 22,347 | 0 | 22,347 | 0.3% | 26 Aug, 2026 |
| 9 | Edward J Smith | Director | 21,532 | 0 | 21,532 | 0.3% | 03 Jul, 2024 |
| 10 | Steven K Henderson | Director | 16,840 | 0 | 16,840 | 0.2% | 26 Aug, 2026 |
| 11 | Peifang Zhang | Director | 4,085 | 0 | 4,085 | 0.1% | 08 May, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 24 Aug, 2026 | Benjamin S. Taecker | Chief Eng And Opr Officer | Acquired A | 30,958 | $0.00 | $0 | 87,274 | Direct |
| 24 Aug, 2026 | Stephen Cotton | Chief Executive Officer | Acquired A | 104,818 | $0.00 | $0 | 318,784 | Direct |
| 24 Aug, 2026 | Steven K Henderson | Director | Acquired A | 10,427 | $0.00 | $0 | 16,840 | Direct |
| 24 Aug, 2026 | Eric West | Chief Financial Officer | Acquired A | 37,352 | $0.00 | $0 | 100,476 | Direct |
| 24 Aug, 2026 | Vincent L Divito | Director | Acquired A | 15,641 | $0.00 | $0 | 26,402 | Direct |
| 24 Aug, 2026 | Eric John Gangloff | Director | Acquired A | 10,427 | $0.00 | $0 | 22,347 | Direct |
| 19 Aug, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 3,305 | $2.67 | $8.82K | 213,966 | Direct |
| 19 Aug, 2026 | Eric West | Chief Financial Officer | Disposed F | 1,213 | $2.67 | $3.24K | 63,124 | Direct |
| 19 Aug, 2026 | Benjamin S. Taecker | Chief Eng And Opr Officer | Disposed F | 1,005 | $2.67 | $2.68K | 56,316 | Direct |
| 01 Jul, 2026 | Benjamin S. Taecker | Chief Eng And Opr Officer | Disposed F | 744 | $2.97 | $2.21K | 57,321 | Direct |
| 01 Jul, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 2,402 | $2.97 | $7.13K | 217,271 | Direct |
| 19 May, 2026 | Eric West | Chief Financial Officer | Disposed F | 721 | $3.91 | $2.82K | 64,337 | Direct |
| 13 Apr, 2026 | Eric West | Chief Financial Officer | Disposed F | 863 | $3.92 | $3.38K | 65,058 | Direct |
| 13 Apr, 2026 | Benjamin S. Taecker | Chief Eng And Opr Officer | Disposed F | 715 | $3.92 | $2.80K | 58,065 | Direct |
| 13 Apr, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 2,352 | $3.92 | $9.22K | 219,673 | Direct |
| 13 Apr, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 2,352 | $3.92 | $9.22K | 219,673 | Direct |
| 13 Apr, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 2,352 | $3.92 | $9.22K | 219,673 | Direct |
| 13 Apr, 2026 | Stephen Cotton | Chief Executive Officer | Disposed F | 2,352 | $3.92 | $9.22K | 219,673 | Direct |
| 13 Apr, 2026 | Eric West | Chief Financial Officer | Disposed F | 863 | $3.92 | $3.38K | 65,058 | Direct |
| 13 Apr, 2026 | Eric West | Chief Financial Officer | Disposed F | 863 | $3.92 | $3.38K | 65,058 | Direct |