As of July 26, 2026, ASP Isotopes's top three insider holders are Jensen Investment Management Ltd Ak (TenPercentOwner, 6.75Mn shares), Jensen Investment Management Ltd Ak (TenPercentOwner, 6.65Mn shares), Jensen Investment Management Ltd Ak (TenPercentOwner, 6.57Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Sergey Vasnetsov | - | 0 | 2,800,000 | 16 Nov, 2022 |
| Todd Wider | - | 400,000 | 0 | 16 Nov, 2022 |
| Joshua Jay Donfeld | - | 1,000,000 | 0 | 16 Nov, 2022 |
| Duncan Moore | - | 400,000 | 0 | 16 Nov, 2022 |
| Hendrik Strydom | - | 0 | 3,797,423 | 16 Nov, 2022 |
| Jensen Investment Management Ltd Ak | - | 0 | 6,746,874 | 16 Oct, 2024 |
| Robert John Andrew Ryan | - | 537,055 | 0 | 26 Feb, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 11 Oct, 2024 | Jensen Investment Management Ltd Ak | Common Stock, par value $0.01 per share | A | 30,000 | $3.03 | 6,746,874 | I | A |
| 01 Aug, 2024 | Jensen Investment Management Ltd Ak | Common Stock, par value $0.01 per share (Common Stock) | D | 31,849 | $2.45 | 6,646,874 | I | S |
| 02 Aug, 2024 | Jensen Investment Management Ltd Ak | Common Stock | D | 80,000 | $2.23 | 6,566,874 | I | S |
| 08 Jul, 2024 | Jensen Investment Management Ltd Ak | Common Stock, par value $0.01 per share (Common Stock) | A | 70,000 | $3.05 | 6,586,874 | I | P |
| 09 Jul, 2024 | Jensen Investment Management Ltd Ak | Common Stock | A | 30,000 | $3.05 | 6,616,874 | I | P |
| 10 Jul, 2024 | Jensen Investment Management Ltd Ak | Common Stock | A | 61,849 | $3.40 | 6,678,723 | I | P |
| 14 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 50,251 | - | 518,709 | D | A |
| 14 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 50,251 | - | 518,709 | D | A |
| 14 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 50,251 | - | 518,709 | D | A |
| 14 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 50,251 | - | 518,709 | D | A |
| 14 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 50,251 | - | 518,709 | D | A |
| 16 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 2,550 | $1.92 | 521,259 | D | P |
| 16 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 2,550 | $1.92 | 521,259 | D | P |
| 16 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 2,550 | $1.92 | 521,259 | D | P |
| 16 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 2,550 | $1.92 | 521,259 | D | P |
| 16 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 2,550 | $1.92 | 521,259 | D | P |
| 17 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 100 | $1.91 | 521,359 | D | P |
| 17 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 100 | $1.91 | 521,359 | D | P |
| 17 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 100 | $1.91 | 521,359 | D | P |
| 17 Jan, 2024 | Robert John Andrew Ryan | Common Stock | A | 100 | $1.91 | 521,359 | D | P |