MPM BioVentures 2014, L.P. — SEC Form 4 filings
SEC reporting owner CIK 1609492. 16 Form 4 filings on record with FilingPulse; latest filed 2026-09-09.
Transaction summary — filings shown
Covers all 16 filings on record, filed 2024-12-12 to 2026-09-09. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 44 legs across 16 filings — 3,107,382 shares, $11,822,339 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 3.
- Largest priced transaction: sale of 630,191 shares @ $8.06 ($5,079,339) in iTeos Therapeutics, Inc., filed 2025-05-15.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| iTeos Therapeutics, Inc. (ITOS) | — | 1 | — | 1 leg · 630,191 sh · $5,079,339 | — |
| Entrada Therapeutics, Inc. (TRDA) | 10% owner | 5 | — | 14 legs · 540,669 sh · $4,517,581 | — |
| Werewolf Therapeutics, Inc. (HOWL) | — | 10 | — | 29 legs · 1,936,522 sh · $2,225,419 | 3 |
Form 4 filings — MPM BioVentures 2014, L.P.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-09 | 4 | Entrada Therapeutics, Inc. (TRDA) jointly with EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC | Sale (S): 38,500 @ $7.11 · Sale (S): 192,500 @ $7.41 · Sale (S): 28,837 @ $7.13 | EDGAR |
| 2026-09-03 | 4 | Entrada Therapeutics, Inc. (TRDA) jointly with EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC | Sale (S): 29,088 @ $7.06 · Sale (S): 25,131 @ $7.19 · Sale (S): 32,263 @ $7.17 | EDGAR |
| 2026-08-31 | 4 | Entrada Therapeutics, Inc. (TRDA) jointly with EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC | Sale (S): 38,922 @ $7.20 · Sale (S): 3,733 @ $7.01 · Sale (S): 44,259 @ $6.99 | EDGAR |
| 2026-08-26 | 4 | Entrada Therapeutics, Inc. (TRDA) jointly with EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC | Sale (S): 21,623 @ $7.34 · Sale (S): 26,522 @ $7.54 · Sale (S): 14,569 @ $7.06 | EDGAR |
| 2025-12-04 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 59,277 @ $0.89 · Sale (S): 57,225 @ $0.87 · Sale (S): 83,230 @ $0.97 | EDGAR |
| 2025-12-01 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 60,733 @ $0.98 · Sale (S): 20,277 @ $0.99 · Sale (S): 60,917 @ $0.94 | EDGAR |
| 2025-11-25 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 64,331 @ $0.83 · Sale (S): 88,802 @ $0.98 · Sale (S): 42,533 @ $0.92 | EDGAR |
| 2025-11-20 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 52,627 @ $0.93 · Sale (S): 66,324 @ $0.94 · Sale (S): 41,152 @ $0.89 | EDGAR |
| 2025-11-17 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 90,951 @ $0.98 · Sale (S): 61,640 @ $0.93 · Sale (S): 57,061 @ $0.95 | EDGAR |
| 2025-11-12 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 68,480 @ $1.11 · Sale (S): 48,570 @ $1.18 · Sale (S): 55,810 @ $1.14 · Sale (S): 40,669 @ $1.09 | EDGAR |
| 2025-11-06 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 140,488 @ $1.22 · Sale (S): 47,950 @ $1.22 · Sale (S): 54,452 @ $1.21 | EDGAR |
| 2025-11-03 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 86,936 @ $1.43 · Sale (S): 114,044 @ $1.28 · Sale (S): 94,063 @ $1.29 | EDGAR |
| 2025-10-29 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC | Sale (S): 72,709 @ $1.72 · Sale (S): 69,068 @ $1.64 · Sale (S): 134,240 @ $1.55 | EDGAR |
| 2025-05-15 | 4 | iTeos Therapeutics, Inc. (ITOS) jointly with MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 GP LLC, MPM BioVentures 2014 LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC, EVNIN LUKE, Foley Todd | Sale (S): 630,191 @ $8.06 | EDGAR |
| 2025-04-30 | 4 | Werewolf Therapeutics, Inc. (HOWL) jointly with MPM BioVentures 2014 (B), L.P., MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM Asset Management Investors BV2014 LLC, Foley Todd | Option exercise/expiry (X): 22,758 @ $0.09 · Sale (S): 1,963 @ $1.05 · Option exercise/expiry (X): 4,015 (derivative) @ $0 · Option exercise/expiry (X): 18,743 (derivative) @ $0 | EDGAR |
| 2024-12-12 | 4 | Entrada Therapeutics, Inc. (TRDA) jointly with EVNIN LUKE, GADICKE ANSBERT, Foley Todd, MPM BioVentures 2014 (B), L.P., MPM Asset Management Investors BV2014 LLC, MPM BioVentures 2014 LLC, MPM BioVentures 2014 GP LLC, MPM BIOVENTURES 2018 (B), L.P., MPM ASSET MANAGEMENT INVESTORS BV2018 LLC | Sale (S): 22,935 @ $20.77 · Sale (S): 21,787 @ $20.23 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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