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Fri Oct 23 · markets open6 signals today103 insider buys this week · $208.8MCIRO short report next: Oct 31The week ahead

INSM

INSMED Inc
NASDAQ · HEALTH CARE · PHARMACEUTICAL PREPARATIONS
92.75
−2.31 −2.42%
USD · close Oct 23

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Who holds it

SEC 13F · LATEST QUARTER PER FUND
FundTypeRank in portfolioValueSharesAs of
Duquesne Family Office (Stanley Druckenmiller)Guru#2$295.8M2.8M2026-06-30
Bridgewater Associates (Ray Dalio)Guru#82$48.6M455K2026-06-30

13F filings cover US-listed holdings and arrive up to 45 days after quarter end, so positions may have changed since.

Stakes of 5% or more

SCHEDULE 13D / 13G · LATEST PER HOLDER · TWO YEARS
No 13D or 13G filing on INSM in the last two years from the filings we read (13G only for companies we track; the sweep began Sep 2026).

A 13D means the holder crossed 5% with intent beyond passive ownership and had to state a purpose; a 13G is the passive version. Every new 13D on tracked companies.

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