Form4insider filings, from the source

Company · CIK 0001104506 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

INSMED Inc · INSM

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.1M · 1net −$3.1M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 9, 2026 SForm 4 →Sep 11, 4:04 pm EDTDavid R BrennanDirector25,000$124.00$3,100,00039,238−38.9%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.