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Insmed Inc (INSM) — Hedge Fund Ownership Q4 2025

INSM
Q4 2025Q3 2025Q2 2025Q1 2025
  • Insmed Inc (INSM) is held by 1 of 82 tracked hedge funds, with Duquesne Family Office (6%) holding the largest stake, indicating limited hedge fund interest relative to peers.
  • The biggest decreases in INSM holdings came from Duquesne Family Office (-39%), suggesting profit-taking or de-risking.
  • 1 hedge fund exited INSM, led by Maverick Capital (1%).
  • Overall, hedge funds decreased exposure to Insmed Inc (INSM) by -52% vs the prior quarter and +150% vs prior year.
# Fund % of Portfolio † Shares † Shares vs Prior Quarter † Shares vs Prior Year † Aggregate Value † Reported Price * Option
1
Duquesne Family Office
6.11% 1.5M -38.86% +149.68% $257.9M $174.04
Maverick Capital
Lee Ainslie
EXITED
1 Total 1.5M -51.89% +149.68% $257.9M
* Reported price is not an actual purchase or sale price. It is the price as of the last portfolio date.
† Portfolio value, share counts, and period-over-period changes exclude options positions (PUT/CALL), which are shown in the Option column for reference only.