Insiders / Tomsicek Michael John
Tomsicek Michael John
CIK 1570392personinsider
Companies
4
First seen
Jan 21, 2015
Last activity
Jun 22, 2026
Holdings
4 companies · 7 positionsView all →
| Company / security | Shares held | Latest |
|---|---|---|
| CRISPR Therapeutics AG · CRSP | 1,891 | — |
| Common stock | 1,891 | Aug 6, 2021 |
| Restricted units | 9,000 | Mar 11, 2021 |
| Options | 131,000 | Mar 11, 2021 |
| Milestone Pharmaceuticals Inc. · MIST | 15,000 | — |
| Common stock | 15,000 | Oct 19, 2022 |
| Options | 77,000 | Jun 10, 2026 |
| Acrivon Therapeutics, Inc. · ACRV | 9,366 | — |
| Common stock | 9,366 | May 18, 2026 |
| Options | 20,275 | Jun 17, 2026 |
| Cubist Pharmaceuticals Inc · CBST | 0 | — |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Aug 6, 2021 | Sell Open-market sale | CRSP CRISPR Therapeutics AG Common Shares | $2.63M | -19K -70.70% | 7,880 <0.01% of shares | medium |
| Jan 21, 2015 | Other Other (per filing) | CBST Cubist Pharmaceuticals Inc Common Stock | $1.51M | -15K -100.00% | 0 | low |
| Aug 6, 2021 | Sell Open-market sale | CRSP CRISPR Therapeutics AG Common Shares | $835.2K |