WaveMan · Form 4
MPM BioVentures 2014, L.P. insider trades
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MPM BioVentures 2014, L.P. insider trades

MPM BioVentures 2014, L.P. has filed 8 Form 4s with the SEC that we hold, for Entrada Therapeutics, Inc. (TRDA) (10% owner), ITOS (10% owner) and Werewolf Therapeutics, Inc. (HOWL) (10% owner). Across all of them we count 0 purchases worth $0 and 26 sales worth $7.1M reported on Form 4. In the last 12 months: 0 purchases ($0) and 16 sales ($3.8M). The largest single trade was a sale of 192,500 shares of Entrada Therapeutics, Inc. worth $1.4M, dated 2026-09-08. Of 12 sales filed since we began reading the 10b5-1 checkbox, 0 (0%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-09-16 and the latest 2026-09-09.

Entrada Therapeutics, Inc. (TRDA)

10% owner · 4 filings · 12 purchases and sales
Trade dateCodeSharesValue as filedFiled
2026-08-24S, sale reported on Form 421,623$158.7K2026-08-26
2026-08-25S, sale reported on Form 426,522$200.0K2026-08-26
2026-08-26S, sale reported on Form 414,569$102.9K2026-08-26
2026-08-27S, sale reported on Form 438,922$280.2K2026-08-31
2026-08-28S, sale reported on Form 43,733$26.2K2026-08-31
2026-08-31S, sale reported on Form 444,259$309.4K2026-08-31
2026-09-01S, sale reported on Form 429,088$205.4K2026-09-03
2026-09-02S, sale reported on Form 425,131$180.7K2026-09-03
2026-09-03S, sale reported on Form 432,263$231.3K2026-09-03
2026-09-04S, sale reported on Form 438,500$273.7K2026-09-09
2026-09-08S, sale reported on Form 4192,500$1.4M2026-09-09
2026-09-09S, sale reported on Form 428,837$205.6K2026-09-09

ITOS

10% owner · 3 filings · 10 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-09-14S, sale reported on Form 43,623$101.4K2021-09-16
2021-09-14S, sale reported on Form 417,938$493.3K2021-09-16
2021-09-15S, sale reported on Form 4991$27.9K2021-09-16
2021-09-15S, sale reported on Form 423,113$642.3K2021-09-16
2021-10-12S, sale reported on Form 48,521$230.8K2021-10-14
2021-10-13S, sale reported on Form 420,929$567.8K2021-10-14
2021-10-14S, sale reported on Form 427,320$745.8K2021-10-14
2021-10-15S, sale reported on Form 48,893$244.8K2021-10-18
2021-10-15S, sale reported on Form 42,039$57.1K2021-10-18
2021-10-18S, sale reported on Form 46,167$167.4K2021-10-18

Werewolf Therapeutics, Inc. (HOWL)

10% owner · 1 filing · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2025-11-07S, sale reported on Form 468,480$76.0K2025-11-12
2025-11-10S, sale reported on Form 448,570$57.3K2025-11-12
2025-11-11S, sale reported on Form 455,810$63.6K2025-11-12
2025-11-12S, sale reported on Form 440,669$44.3K2025-11-12
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1609492) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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