The most recent ASP Isotopes (ASPI) insider transaction: Jensen Investment Management Ltd Ak (TenPercentOwner) received 30,000 shares as a grant or award on Oct 11, 2024, reported on Form 4 on Oct 16, 2024. So far in the quarter ending Dec 31, 2026, insiders were net sellers of 6.75Mn shares.
Per Business Quant, ASPI insiders together hold 7.32Mn shares based on their latest Form 4 filings, up 0.56% from 7.28Mn shares at the end of Q3 2025.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jensen Investment Management Ltd Ak | TenPercentOwner | 0 | 19,960,622 | 19,960,622 | 57.2% | 16 Oct, 2024 |
| 2 | Paul Elliot Mann | Chief Executive Officer | 5,087,500 | 0 | 5,087,500 | 14.6% | 17 Feb, 2023 |
| 3 | Hendrik Strydom | Director, TenPercentOwner | 0 | 3,797,423 | 3,797,423 | 10.9% | 16 Nov, 2022 |
| 4 | Sergey Vasnetsov | Director | 0 | 2,800,000 | 2,800,000 | 8.0% | 16 Nov, 2022 |
| 5 | Joshua Jay Donfeld | Director | 1,000,000 | 0 | 1,000,000 | 2.9% | 16 Nov, 2022 |
| 6 | Robert Ainscow | Chief Financial Officer | 900,000 | 0 | 900,000 | 2.6% | 17 Feb, 2023 |
| 7 | Robert John Andrew Ryan | Director | 537,055 | 0 | 537,055 | 1.5% | 26 Feb, 2024 |
| 8 | Duncan Moore | Director | 400,000 | 0 | 400,000 | 1.1% | 16 Nov, 2022 |
| 9 | Todd Wider | Director | 400,000 | 0 | 400,000 | 1.1% | 16 Nov, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 11 Oct, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Acquired A | 30,000 | $3.03 | $90.77K | 6,746,874 | Indirect |
| 01 Aug, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Disposed S | 31,849 | $2.45 | $78.01K | 6,646,874 | Indirect |
| 02 Aug, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Disposed S | 80,000 | $2.23 | $178.30K | 6,566,874 | Indirect |
| 08 Jul, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Acquired P | 70,000 | $3.05 | $213.36K | 6,586,874 | Indirect |
| 09 Jul, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Acquired P | 30,000 | $3.05 | $91.50K | 6,616,874 | Indirect |
| 10 Jul, 2024 | Jensen Investment Management Ltd Ak | TenPercentOwner | Acquired P | 61,849 | $3.40 | $210.23K | 6,678,723 | Indirect |
| 14 Jan, 2024 | Robert John Andrew Ryan | Director | Acquired A | 50,251 | — | — | 518,709 | Direct |
| 16 Jan, 2024 | Robert John Andrew Ryan | Director | Acquired P | 2,550 | $1.92 | $4.90K | 521,259 | Direct |
| 17 Jan, 2024 | Robert John Andrew Ryan | Director | Acquired P | 100 | $1.91 | $191 | 521,359 | Direct |
| 25 Jan, 2024 | Robert John Andrew Ryan | Director | Acquired P | 100 | $2.54 | $254 | 521,459 | Direct |
| 29 Jan, 2024 | Robert John Andrew Ryan | Director | Acquired P | 15,596 | $2.35 | $36.65K | 537,055 | Direct |
| 30 Dec, 2022 | Robert Ainscow | Chief Financial Officer | Acquired A | 50,000 | $0.00 | $0 | 900,000 | Direct |
| 30 Dec, 2022 | Paul Elliot Mann | Chief Executive Officer | Acquired A | 1,000,000 | $0.00 | $0 | 5,087,500 | Direct |
| 15 Nov, 2022 | Robert Ainscow | Chief Financial Officer | Acquired A | 600,000 | $0.00 | $0 | 850,000 | Direct |
| 15 Nov, 2022 | Todd Wider | Director | Acquired A | 200,000 | $0.00 | $0 | 400,000 | Direct |
| 15 Nov, 2022 | Hendrik Strydom | Director, TenPercentOwner | Acquired A | 200,000 | $0.00 | $0 | 3,797,423 | Indirect |
| 15 Nov, 2022 | Sergey Vasnetsov | Director | Acquired A | 600,000 | $0.00 | $0 | 2,800,000 | Indirect |
| 15 Nov, 2022 | Joshua Jay Donfeld | Director | Acquired A | 200,000 | $0.00 | $0 | 1,000,000 | Direct |
| 15 Nov, 2022 | Duncan Moore | Director | Acquired A | 200,000 | $0.00 | $0 | 400,000 | Direct |
| 15 Nov, 2022 | Paul Elliot Mann | Chief Executive Officer | Acquired A | 37,500 | $4.00 | $150.00K | 3,087,500 | Direct |