Insiders / Mpm Asset Management LLC
Mpm Asset Management LLC
CIK 1263048personinsiderfund
Companies
4
First seen
Jan 22, 2021
Last activity
Jan 14, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Tcr2 Therapeutics Inc. · TCRR | 3,674,978 | — |
| Aktis Oncology, Inc. · AKTS | — | — |
| Harpoon Therapeutics, Inc. · HARP | — | — |
| Werewolf Therapeutics, Inc. · HOWL | — | — |
All securities held
1 position · latest reported per filing
Shares
| Company | Security | Shares |
|---|---|---|
| Tcr2 Therapeutics Inc. | Common stock | 3,674,978 |
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 |
|---|---|---|---|---|---|---|
| May 22, 2023 | Sell Open-market sale | TCRR Tcr2 Therapeutics Inc. Common Stock | $131.9K | -70K -18.75% | 304,001 | medium |
| May 22, 2023 | Exercise In-the-money exercise | TCRR Tcr2 Therapeutics Inc. Common Stock | $131.9K | +178K +91.00% | 374,171 | low |
| May 22, 2023 | Exercise In-the-money exercise | TCRR Tcr2 Therapeutics Inc. Common Stock Warrant (Right to Buy) | — |