As of March 23, 2026, the three largest insider holders of AMTX are Eric A Mcafee (Chief Executive Officer, 3.62Mn shares), Todd Waltz (Executive Vice President, Cfo, 456.82K shares), Francis P Barton (Director, 226.52K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Eric A Mcafee | Chief Executive Officer | 3,917,316 | 0 | 23 Mar, 2026 |
| Todd Waltz | Executive Vice President, Cfo | 456,821 | 0 | 08 Apr, 2025 |
| Francis P Barton | 226,518 | 0 | 28 Jan, 2026 | |
| Lydia I Beebe | 214,286 | 0 | 28 Jan, 2026 | |
| Naomi Louise Boness | 64,643 | 0 | 28 Jan, 2026 | |
| John R Block | 56,330 | 0 | 23 Mar, 2026 | |
| Timothy Alan Simon | 52,632 | 0 | 28 Jan, 2026 | |
| James Michael Rockett | Evp, General Counsel | 27,922 | 0 | 19 May, 2025 |
| Sanjeev Gupta | Executive Vice President, Md | 143 | 0 | 17 Sep, 2021 |
* 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 19 Mar, 2026 | John R Block | Common Stock | A | 10,000 | $2.64 | 56,330 | D | A |
| 19 Mar, 2026 | Eric A Mcafee | Common Stock | A | 300,000 | $2.64 | 3,917,316 | D | A |
| 19 Mar, 2026 | Todd Waltz | Option (right to buy) | A | 200,000 | $2.64 | 1,305,701 | D | A |
| 19 Mar, 2026 | Andrew B Foster | Option (right to buy) | A | 200,000 | $2.64 | 1,185,834 | D | A |
| 19 Mar, 2026 | Sanjeev Gupta | Option (right to buy) | A | 200,000 | $2.64 | 1,385,000 | D | A |
| 19 Mar, 2026 | James Michael Rockett | Option (right to buy) | A | 200,000 | $2.64 | 700,000 | D | A |
| 22 Jan, 2026 | Timothy Alan Simon | Common Stock | A | 12,000 | $1.54 | 52,632 | D | A |
| 22 Jan, 2026 | Lydia I Beebe | Common Stock | A | 14,500 | $1.54 | 214,286 | D | A |
| 22 Jan, 2026 | Francis P Barton | Common Stock | A | 18,000 | $1.54 | 226,518 | D | A |
| 22 Jan, 2026 | Naomi Louise Boness | Common Stock | A | 12,000 | $1.54 | 64,643 | D | A |
| 22 Jan, 2026 | John R Block | Common Stock | A | 12,000 | $1.54 | 46,330 | D | A |
| 14 Aug, 2025 | Francis P Barton | Common Stock | D | 1,300 | $2.53 | 233,670 | D | S |
| 14 Aug, 2025 | Francis P Barton | Common Stock | D | 12,152 | $2.53 | 221,518 | D | S |
| 14 Aug, 2025 | Francis P Barton | Common Stock | D | 5,000 | $2.53 | 216,518 | D | S |
| 14 Aug, 2025 | Francis P Barton | Common Stock | D | 8,000 | $2.53 | 208,518 | D | S |
| 09 Jun, 2025 | Timothy Alan Simon | Common Stock | D | 10,371 | $1.98 | 50,261 | D | D |
| 09 Jun, 2025 | Timothy Alan Simon | Common Stock | D | 5,000 | $1.98 | 45,261 | D | D |
| 09 Jun, 2025 | Timothy Alan Simon | Common Stock | D | 4,629 | $1.98 | 40,632 | D | D |
| 15 May, 2025 | James Michael Rockett | Common Stock | A | 27,922 | $1.63 | 27,922 | D | A |
| 07 Apr, 2025 | Todd Waltz | Common Stock | A | 50,000 | $0.70 | 217,940 | D | M |