As of May 23, 2026, the three largest insider holders of ATER are Macarthur, Llc 9830 (TenPercentOwner, 4.72Mn shares), Yaniv Zion Sarig (Chief Executive Officer, 2.98Mn shares), Arturo Rodriguez (Chief Executive Officer, 1.01Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William Kurtz | - | 155,922 | 0 | 23 Jan, 2026 |
| Arturo Rodriguez | Chief Executive Officer | 1,011,148 | 0 | 23 Jan, 2026 |
| Greg Petersen | - | 58,355 | 0 | 04 Oct, 2021 |
| Susan E. Lattmann | - | 162,465 | 0 | 23 Jan, 2026 |
| Joseph A Risico | Co Ceo | 370,119 | 0 | 30 Apr, 2024 |
| Yaniv Zion Sarig | Chief Executive Officer | 2,982,259 | 0 | 14 Jun, 2023 |
| Roi Zion Zahut | Chief Technology Officer | 376,358 | 0 | 13 Jun, 2025 |
| Tomer Pascal | Chief Revenue Officer | 198,321 | 0 | 23 Dec, 2021 |
| Walter Amy Von | - | 44,418 | 0 | 04 Oct, 2021 |
| Macarthur, Llc 9830 | - | 0 | 4,715,401 | 15 Sep, 2021 |
| Sarah Liebel | - | 51,625 | 0 | 20 Aug, 2024 |
| Cynthia W Williams | - | 396,670 | 0 | 15 Sep, 2023 |
| Rueden Anton Von | Coo | 500,000 | 0 | 31 May, 2022 |
| Phillip Lepper | Chief Commercial Officer | 150,402 | 0 | 22 May, 2025 |
| Joshua O Feldman | Chief Financial Officer | 497,442 | 0 | 23 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 23 Jan, 2026 | Susan E. Lattmann | Common Stock | A | 25,555 | $0.00 | 162,465 | D | A |
| 23 Jan, 2026 | Arturo Rodriguez | Common Stock | A | 50,000 | $0.00 | 1,011,148 | D | A |
| 23 Jan, 2026 | Arturo Rodriguez | Common Stock | A | 50,000 | $0.00 | 1,011,148 | D | A |
| 23 Jan, 2026 | Joshua O Feldman | Common Stock | A | 120,000 | $0.00 | 497,442 | D | A |
| 23 Jan, 2026 | Joshua O Feldman | Common Stock | A | 120,000 | $0.00 | 497,442 | D | A |
| 23 Jan, 2026 | William Kurtz | Common Stock | A | 40,394 | $0.00 | 155,922 | D | A |
| 13 Aug, 2025 | William Kurtz | Common Stock | A | 78,034 | $0.00 | 115,528 | D | A |
| 13 Aug, 2025 | Susan E. Lattmann | Common Stock | A | 78,034 | $0.00 | 136,910 | D | A |
| 11 Jun, 2025 | Arturo Rodriguez | Common Stock | A | 481,817 | $1.39 | 1,013,405 | D | A |
| 11 Jun, 2025 | Joshua O Feldman | Common Stock | A | 248,049 | $1.39 | 394,018 | D | A |
| 11 Jun, 2025 | Roi Zion Zahut | Common Stock | A | 199,438 | $1.39 | 397,238 | D | A |
| 11 Jun, 2025 | Roi Zion Zahut | Common Stock | A | 199,438 | $1.39 | 397,238 | D | A |
| 11 Jun, 2025 | Joshua O Feldman | Common Stock | A | 248,049 | $1.39 | 394,018 | D | A |
| 11 Jun, 2025 | Arturo Rodriguez | Common Stock | A | 481,817 | $1.39 | 1,013,405 | D | A |
| 12 Jun, 2025 | Arturo Rodriguez | Common Stock | D | 46,052 | $1.32 | 967,353 | D | S |
| 12 Jun, 2025 | Arturo Rodriguez | Common Stock | D | 46,052 | $1.32 | 967,353 | D | S |
| 12 Jun, 2025 | Roi Zion Zahut | Common Stock | D | 16,980 | $1.32 | 380,258 | D | S |
| 12 Jun, 2025 | Joshua O Feldman | Common Stock | D | 15,322 | $1.32 | 378,696 | D | S |
| 12 Jun, 2025 | Roi Zion Zahut | Common Stock | D | 16,980 | $1.32 | 380,258 | D | S |
| 12 Jun, 2025 | Joshua O Feldman | Common Stock | D | 15,322 | $1.32 | 378,696 | D | S |