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Insmed (INSM)
NASDAQ
$98.03-$0.57 (-0.58%)
Price as of Jul 31, 2026 7:34 PM EDT- $21.4BMarket Cap
- -9.28%1-Year Change
- BiotechnologyIndustry
Insmed (INSM)
$98.03-$0.57 (-0.58%)
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%) | Apr 30, 2026 |
JPMORGAN TRUST II | 5.62% | 12.2M | 0 (0.00%) | May 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 |
GROWTH FUND OF AMERICA | 2.89% | 6.3M | +2.8M (+44.97%) | May 31, 2026 |
Virtus Convertible & Income 2024 Target Term Fund | 2.54% | 5.5M | 0 (0.00%) | Jul 31, 2024 |
Current Ownership Distribution
- Institutions3.0B (64.30%)
- Mutual Funds1.7B (35.55%)
- 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)
- $3.6BAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Lewis William Chair and CEO | Exempt | Jul 23, 2026 | $0.00 | 6,260 | $0.00 | 0 |
Lewis William Chair and CEO | Exempt | Jul 23, 2026 | $0.00 | 4,440 | $0.00 | 0 |
Lewis William Chair and CEO | Exempt | Jul 23, 2026 | $190,679.60 | 6,260 | $30.46 | 265,318 |
Lewis William Chair and CEO | Exempt | Jul 23, 2026 | $76,190.40 | 4,440 | $17.16 | 269,758 |
Lewis William Chair and CEO | Sell | Jul 23, 2026 | $509,933.36 | 4,828 | $105.62 | 264,930 |
Lewis William Chair and CEO | Sell | Jul 23, 2026 | $624,956.96 | 5,872 | $106.43 | 259,058 |
Flammer Martina M.D. Chief Medical Officer | Exempt | Jul 06, 2026 | $0.00 | 7,945 | $0.00 | 23,835 |
Flammer Martina M.D. Chief Medical Officer | Exempt | Jul 06, 2026 | $0.00 | 4,357 | $0.00 | 4,358 |
Flammer Martina M.D. Chief Medical Officer | Exempt | Jul 06, 2026 | $231,437.85 | 7,945 | $29.13 | 68,431 |
Flammer Martina M.D. Chief Medical Officer | Exempt | Jul 06, 2026 | $86,007.18 | 4,357 | $19.74 | 72,788 |
Flammer Martina M.D. Chief Medical Officer | Sell | Jul 06, 2026 | $529,183.08 | 4,854 | $109.02 | 67,934 |
Flammer Martina M.D. Chief Medical Officer | Sell | Jul 06, 2026 | $823,748.80 | 7,448 | $110.60 | 60,486 |
Lewis William Chair and CEO | Exempt | Jun 25, 2026 | $0.00 | 12,518 | $0.00 | 12,519 |
Lewis William Chair and CEO | Exempt | Jun 25, 2026 | $0.00 | 8,880 | $0.00 | 8,880 |
Lewis William Chair and CEO | Exempt | Jun 25, 2026 | $381,298.28 | 12,518 | $30.46 | 271,435 |
Lewis William Chair and CEO | Exempt | Jun 25, 2026 | $152,380.80 | 8,880 | $17.16 | 280,315 |
Lewis William Chair and CEO | Sell | Jun 25, 2026 | $1.2M | 12,091 | $102.34 | 268,224 |
Lewis William Chair and CEO | Sell | Jun 25, 2026 | $189,291.60 | 1,836 | $103.10 | 266,388 |
Lewis William Chair and CEO | Sell | Jun 25, 2026 | $388,234.44 | 3,723 | $104.28 | 262,665 |
Lewis William Chair and CEO | Sell | Jun 25, 2026 | $258,543.12 | 2,456 | $105.27 | 260,209 |
Lewis William Chair and CEO | Sell | Jun 25, 2026 | $137,300.84 | 1,292 | $106.27 | 258,917 |
Butera Samuele SVP, GM, Global Respiratory | Award | Jun 23, 2026 | $0.00 | 12,570 | $0.00 | 12,570 |
Butera Samuele SVP, GM, Global Respiratory | Award | Jun 23, 2026 | $0.00 | 7,342 | $0.00 | 7,342 |
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 |