INSMED INC (INSM) Institutional Ownership and Insiders Activity
INSMED INC (INSM) is widely held by institutional investors, with 652 firms reporting positions valued at approximately $23.37B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is the largest disclosed holder, reporting approximately $1.72B in INSM holdings in its latest filing.
Recent insider activity includes 12 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.
Institutional Holders
652
Total Reported Value
$23.37B
Largest Holder
Fmr Llc
Largest Position
$1.72B
Insider Transactions (90d)
12
Latest Filing Quarter
Q2 2026
New Institutional Positions
645
Funds Exiting Positions
1
Top Institutional Owners
View allInvestorReported Balance
- Fmr Llc$1.72B
- Blackrock, Inc.$1.69B
- Vanguard Portfolio Management Llc$1.11B
- Jpmorgan Chase & Co$1.09B
- Vanguard Capital Management Llc$1.04B
INSM News
All news- Palo Alto Investors Q2 2026 Portfolio Changes: Major Buys and Minor Sells in Biotech Focus
Aug 22, 2026 · valut.ai
- Eagle Health Investments Lp: Significant Stock Purchases & Sales in Q2 2026
Aug 11, 2026 · valut.ai
Related INSM Institutional Insights:
- INSM 13F Institutional Holders
- INSM Superinvestors
- INSM Institutional Ownership Changes
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- INSM Insider Trading & SEC Form 4 Activity
- INSM Articles
- Top Institutional Investor Stock Rankings