INSM
Common Stock

Insmed INC

COM PAR $.01 As of Jun 30, 2026 CUSIP 457669307
Institutional Holders
692
Total Held Value
$24.02B
Total Exact Shares
225.07M
Largest Holder
Fidelity (FMR)
16.14M shares • $1.72B
Reported Holders692
Filings dated Jun 30, 2026 unless marked
# Trend (4Q)
1 Fidelity (FMR) $1.72B 0.1% +22.7% 16.14M Jun 30, 2026
2 BlackRock $1.69B <0.1% -5.2% 15.81M Jun 30, 2026
3 Vanguard Portfolio Management $1.11B 0.1% +0.3% 10.41M Jun 30, 2026
4 JPMorgan Chase $1.09B 0.1% -56.8% 10.43M Jun 30, 2026
5 Vanguard Capital Management $1.04B <0.1% +1.5% 9.79M Jun 30, 2026
6 Baker Bros. Advisors $937.8M 4.7% +18.5% 8.80M Jun 30, 2026
7 Capital International Investors $878.3M 0.2% +47.2% 8.24M Jun 30, 2026
8 Darwin Global Management $673.6M 17.9% -61.7% 6.43M Jun 30, 2026
9 Ameriprise Financial $658.9M 0.1% +102.1% 6.18M Jun 30, 2026
10 Orbis Allan Gray $647.9M 2.2% +224.5% 6.08M Jun 30, 2026
11 State Street $645.3M <0.1% +9.0% 6.05M Jun 30, 2026
12 D. E. Shaw & Co. $626.7M 0.3% +4.5% 5.88M Jun 30, 2026
13 Artisan Partners Limited Partnership $580.2M 0.9% -16.6% 5.44M Jun 30, 2026
14 RTW Investments $516.3M 4.4% — 4.84M Jun 30, 2026
15 Geode Capital Management $448.8M <0.1% -5.2% 4.22M Jun 30, 2026
16 T. Rowe Price Associates $363.1M <0.1% +10.1% 3.41M Jun 30, 2026
17 Norges Bank $360.1M <0.1% — 3.38M — Jun 30, 2026
18 Jupiter Topco $277.8M 0.1% — 2.61M Jun 30, 2026
19 UBS Group $275.6M <0.1% +48.7% 2.58M Jun 30, 2026
20 Citadel Advisors $272.6M <0.1% +17.2% 2.56M Jun 30, 2026
Exited in Latest Filing98
# Fund Prior Value Prior % of Fund Change Prior Shares Trend (4Q) Exit Report
Each exit is an immediately prior-filing position absent from that manager's latest published filing. Prior values are shown for context and are not included in current totals.