As of March 23, 2026, VivoSim Labs's top three insider holders are Vaidehi Joshi (Director, 58.82K shares), Keith Murphy (Executive Chairman, 26.05K shares), Douglas Jay Cohen (Director, 20.73K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Vaidehi Joshi | 58,821 | 0 | 09 Aug, 2024 | |
| Keith Murphy | Executive Chairman | 26,053 | 0 | 29 Jan, 2026 |
| Douglas Jay Cohen | 20,732 | 0 | 29 Jan, 2026 | |
| Alison Tjosvold Milhous | 19,899 | 0 | 29 Jan, 2026 | |
| Adam K Stern | 19,899 | 0 | 29 Jan, 2026 | |
| David Gobel | 15,000 | 0 | 29 Jan, 2026 | |
| Douglas Jay Cohen | 0 | 1,000 | 19 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 27 Jan, 2026 | Keith Murphy | Common Stock | A | 15,000 | $0.00 | 26,053 | D | A |
| 27 Jan, 2026 | Alison Tjosvold Milhous | Common Stock | A | 15,000 | $0.00 | 19,899 | D | A |
| 27 Jan, 2026 | Douglas Jay Cohen | Common Stock | A | 15,000 | $0.00 | 20,732 | D | A |
| 27 Jan, 2026 | David Gobel | Common Stock | A | 15,000 | $0.00 | 15,000 | D | A |
| 27 Jan, 2026 | Adam K Stern | Common Stock | A | 15,000 | $0.00 | 19,899 | D | A |
| 25 Nov, 2025 | Amar Akhtar Sethi | Options (right to buy) | A | 53,500 | $0.00 | 53,500 | D | A |
| 17 Nov, 2025 | David Gobel | Common Stock | A | 3,266 | $2.24 | 0 | D | S |
| 11 Aug, 2025 | Tony Serge Lialin | Options (right to buy) | A | 40,000 | $0.00 | 40,000 | D | A |
| 07 Aug, 2024 | David Gobel | Common Stock | A | 19,607 | $0.00 | 39,214 | D | A |
| 07 Aug, 2024 | Alison Tjosvold Milhous | Common Stock | A | 19,607 | $0.00 | 58,821 | D | A |
| 07 Aug, 2024 | Douglas Jay Cohen | Common Stock | A | 19,607 | $0.00 | 68,821 | D | A |
| 07 Aug, 2024 | Vaidehi Joshi | Common Stock | A | 19,607 | $0.00 | 58,821 | D | A |
| 07 Aug, 2024 | Adam K Stern | Common Stock | A | 19,607 | $0.00 | 58,821 | D | A |
| 07 Aug, 2024 | Keith Murphy | Common Stock | A | 19,607 | $0.00 | 132,641 | D | A |
| 05 Aug, 2024 | Keith Murphy | Options (right to buy) | A | 574,923 | $0.00 | 574,923 | D | A |
| 05 Aug, 2024 | Keith Murphy | Options (right to buy) | A | 143,731 | $0.00 | 143,731 | D | A |
| 17 Nov, 2023 | Adam K Stern | Common Stock | A | 19,607 | $0.00 | 39,214 | D | A |
| 17 Nov, 2023 | Keith Murphy | Common Stock | A | 19,607 | $0.00 | 113,034 | D | A |
| 15 Nov, 2023 | David Gobel | Common Stock | D | 19,607 | $1.62 | 0 | D | S |
| 17 Nov, 2023 | Alison Tjosvold Milhous | Common Stock | A | 19,607 | $0.00 | 39,214 | D | A |