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Insmed (INSM)
NASDAQ
$104.16+$5.55 (+5.63%)
Price as of Jun 23, 2026 7:33 PM EDT- $21.4BMarket Cap
- -6.46%1-Year Change
- BiotechnologyIndustry
Insmed (INSM)
$104.16+$5.55 (+5.63%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
JPMORGAN CHASE & CO | 11.14% | 24.2M | +950,987 (+3.94%) | Mar 31, 2026 |
VANGUARD GROUP INC | 9.72% | 21.1M | +1.1M (+5.41%) | Dec 31, 2025 |
DARWIN GLOBAL MANAGEMENT, LTD. | 7.75% | 16.8M | -4.1M (-24.56%) | Mar 31, 2026 |
BLACKROCK, INC. | 7.69% | 16.7M | +1.6M (+9.67%) | Mar 31, 2026 |
BLACKROCK FUNDING, INC. /DE | 7.40% | 16.0M | +1.1M (+6.63%) | Dec 31, 2024 |
BLACKROCK INC. | 6.58% | 14.3M | +2.5M (+17.28%) | Jun 30, 2024 |
FMR LLC | 6.07% | 13.2M | +3.2M (+24.56%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 8.26% | 17.9M | +319,532 (+1.78%) | Mar 31, 2026 |
CALAMOS INVESTMENT TRUST/IL | 6.23% | 13.5M | 0 (0.00%) | Jan 31, 2026 |
JPMORGAN TRUST II | 5.62% | 12.2M | +104,551 (+0.86%) | Mar 31, 2026 |
JANUS INVESTMENT FUND | 3.48% | 7.5M | 0 (0.00%) | Mar 31, 2026 |
Virtus Strategy Trust | 3.37% | 7.3M | 0 (0.00%) | Sep 30, 2025 |
Virtus Convertible & Income 2024 Target Term Fund | 2.54% | 5.5M | 0 (0.00%) | Jul 31, 2024 |
TRI-CONTINENTAL CORP | 2.40% | 5.2M | 0 (0.00%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions3.0B (65.92%)
- Mutual Funds1.5B (33.93%)
- Insiders7.0M (0.15%)
- Other0 (0.00%)
Insider Transactions
- 0.15% (7.0M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 9Number of InsiderSelling (last 12 months)
- $3.5BAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Lewis William Chair and CEO | Sell | Jun 08, 2026 | $612,605.45 | 6,515 | $94.03 | 258,917 |
Adsett Roger Chief Operating Officer | Exempt | Apr 01, 2026 | $0.00 | 88,060 | $0.00 | 0 |
Adsett Roger Chief Operating Officer | Exempt | Apr 01, 2026 | $1.3M | 88,060 | $14.56 | 194,870 |
Adsett Roger Chief Operating Officer | Sell | Apr 01, 2026 | $1.1M | 6,715 | $163.18 | 188,155 |
Adsett Roger Chief Operating Officer | Sell | Apr 01, 2026 | $3.1M | 19,001 | $164.11 | 169,154 |
Adsett Roger Chief Operating Officer | Sell | Apr 01, 2026 | $10.3M | 62,344 | $164.95 | 106,810 |
Smith Michael Alexander Chief Legal Officer | Exempt | Mar 30, 2026 | $0.00 | 5,649 | $0.00 | 8,633 |
Smith Michael Alexander Chief Legal Officer | Exempt | Mar 30, 2026 | $0.00 | 13,989 | $0.00 | 18,561 |
Smith Michael Alexander Chief Legal Officer | Exempt | Mar 30, 2026 | $96,428.43 | 5,649 | $17.07 | 57,520 |
Smith Michael Alexander Chief Legal Officer | Exempt | Mar 30, 2026 | $390,153.21 | 13,989 | $27.89 | 71,509 |
Smith Michael Alexander Chief Legal Officer | Sell | Mar 30, 2026 | $3.0M | 19,638 | $150.98 | 51,871 |
Lewis William Chair and CEO | Exempt | Mar 19, 2026 | $0.00 | 6,259 | $0.00 | 50,073 |
Lewis William Chair and CEO | Exempt | Mar 19, 2026 | $0.00 | 4,440 | $0.00 | 35,520 |
Lewis William Chair and CEO | Exempt | Mar 19, 2026 | $190,649.14 | 6,259 | $30.46 | 307,444 |
Lewis William Chair and CEO | Exempt | Mar 19, 2026 | $76,190.40 | 4,440 | $17.16 | 311,884 |
Lewis William Chair and CEO | Sell | Mar 19, 2026 | $231,594.93 | 1,629 | $142.17 | 310,255 |
Lewis William Chair and CEO | Sell | Mar 19, 2026 | $650,696.54 | 4,537 | $143.42 | 305,718 |
Lewis William Chair and CEO | Sell | Mar 19, 2026 | $653,250.63 | 4,533 | $144.11 | 301,185 |
Lewis William Chair and CEO | Exempt | Mar 05, 2026 | $0.00 | 6,259 | $0.00 | 56,332 |
Lewis William Chair and CEO | Exempt | Mar 05, 2026 | $0.00 | 4,440 | $0.00 | 39,960 |
Lewis William Chair and CEO | Exempt | Mar 05, 2026 | $190,649.14 | 6,259 | $30.46 | 307,444 |
Lewis William Chair and CEO | Exempt | Mar 05, 2026 | $76,190.40 | 4,440 | $17.16 | 311,884 |
Lewis William Chair and CEO | Sell | Mar 05, 2026 | $300,431.09 | 2,083 | $144.23 | 309,801 |
Lewis William Chair and CEO | Sell | Mar 05, 2026 | $376,104.03 | 2,589 | $145.27 | 307,212 |
Lewis William Chair and CEO | Sell | Mar 05, 2026 | $571,827.34 | 3,899 | $146.66 | 303,313 |
Lewis William Chair and CEO | Sell | Mar 05, 2026 | $313,965.12 | 2,128 | $147.54 | 301,185 |
SHAROKY MELVIN MD | Gift | Mar 03, 2026 | $0.00 | 100 | $0.00 | 242,776 |
SHAROKY MELVIN MD | Gift | Feb 25, 2026 | $0.00 | 1,072 | $0.00 | 242,876 |
SHAROKY MELVIN MD | Gift | Feb 25, 2026 | $0.00 | 243 | $0.00 | 5,423 |
SHAROKY MELVIN MD | Gift | Feb 25, 2026 | $0.00 | 243 | $0.00 | 3,724 |