MPM BioImpact LLC
CIK 1687078 · last filed 2025-04-30
MPM BioImpact LLC is a corporate insider who has filed 16 SEC Form 4 insider transactions across 5 companies since 2017. The most recent filing, for HOWL, was dated Apr 30, 2025. Across all open-market trades the lifetime net is −$43.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $107.3M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$107.34M
5
16
-$43.42M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| HOWL | 10%+ Owner | 6,718,670 | $0.38 | $2.56M | -$32.2K | 1 | 2025-04-30 |
| iTeos Therapeutics, Inc. (ITOS) Delisted | 10%+ Owner | 4,943,551 | $10.15 | $50.18M | -$24.60M | 7 | 2021-12-02 |
| CGEM | 10%+ Owner | 7,648,268 | $13.70 | $104.78M | -$12.62M | 5 | 2021-09-20 |
| Harpoon Therapeutics, Inc. (HARP) Delisted | 10%+ Owner | 6,374,904 | $23.01 | $146.69M | -$7.08M | 2 | 2021-06-02 |
| Viracta Therapeutics, Inc. (SNSS) Delisted | 10%+ Owner | 3,331,500 | $18.62 | $62.03M | $904.0K | 1 | 2017-11-06 |
Recent Filings
16 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-04-30 | HOWL | Mixed | +325,409 | -$187 | EDGAR |
| 2021-12-02 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −559,092 | -$19.27M | EDGAR |
| 2021-11-30 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −154,264 | -$5.43M | EDGAR |
| 2021-10-14 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −380,008 | -$10.34M | EDGAR |
| 2021-10-05 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −184,520 | -$4.99M | EDGAR |
| 2021-09-20 | CGEM | Sell (S) | −9,372 | -$272.4K | EDGAR |
| 2021-09-16 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −305,668 | -$8.47M | EDGAR |
| 2021-09-13 | CGEM | Sell (S) | −69,759 | -$2.04M | EDGAR |
| 2021-09-08 | CGEM | Sell (S) | −145,920 | -$4.26M | EDGAR |
| 2021-09-02 | CGEM | Sell (S) | −72,927 | -$2.15M | EDGAR |