MPM Asset Management Investors BV2014 LLC
CIK 1609495 · last filed 2026-09-03
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
HARP price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
399 BOYLSTON STREET, SUITE 1100
BOSTON, MA 02116
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TRDA | 10%+ Owner | 4,144,952 | $4.75 | $19.69M | -$6.17M | 1 | 2026-09-03 |
| HOWL | 10%+ Owner | 5,044,760 | $0.98 | $4.95M | $8.14M | 5 | 2025-12-01 |
| iTeos Therapeutics, Inc. (ITOS) Delisted | 10%+ Owner | 3,200,339 | $10.15 | $32.48M | -$38.86M | 4 | 2021-10-14 |
| Harpoon Therapeutics, Inc. (HARP) Delisted | 10%+ Owner | 433,996 | $23.01 | $9.99M | -$129.97M | 1 | 2021-01-27 |
Recent Filings · Page 3 of 3
30 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-10-30 | HOWL | Notice (144) | −4,479 | -$7.0K | EDGAR |
| 2025-10-29 | HOWL | Sell (S) | −1,380,085 | -$2.23M | EDGAR |
| 2025-10-27 | HOWL | Notice (144) | −4,479 | -$7.9K | EDGAR |
| 2025-04-30 | HOWL | Mixed | +124,770 | -$78 | EDGAR |
| 2021-10-14 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −510,930 | -$13.90M | EDGAR |
| 2021-10-12 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −467,937 | -$12.74M | EDGAR |
| 2021-09-30 | iTeos Therapeutics, Inc. (ITOS) Delisted | Sell (S) | −193,554 | -$5.23M | EDGAR |
| 2021-05-06 | HOWL | Mixed | +19,127,988 | $12.07M | EDGAR |
| 2021-04-09 | iTeos Therapeutics, Inc. (ITOS) Delisted | Mixed | −366,813 | -$7.00M | EDGAR |
| 2021-01-27 | Harpoon Therapeutics, Inc. (HARP) Delisted | Sell (S) | −6,490,746 | -$129.97M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.