Insmed Inc. – Investors and Politicians Who Own It
INSM, 4 share classes and securities
Investors who own it
11 tracked investors, $2.7B in shares, each from their latest 13F.
| Investor | Value | Share of portfolio |
|---|---|---|
Julian i Felix BakerBaker Bros. Advisors, Q2 2026 | $937.8M | 4.70% |
Darwin Global ManagementQ2 2026 | $673.6M | 17.9% |
Rod WongRTW Investments, Q2 2026 | $516.3M | 4.41% |
Lee AinslieMaverick Capital, Q2 2026 | $229.3M | 2.03% |
Stanley DruckenmillerDuquesne Family Office, Q2 2026 | $151.9M | 2.92% |
Stanley DruckenmillerCallDuquesne Family Office, Q2 2026 | $143.9M | 2.76% |
Castle Hook PartnersQ2 2026 | $105.9M | 0.49% |
Ray DalioBridgewater Associates, Q2 2026 | $48.6M | 0.20% |
Daniel SchneebergerADAR1 Capital Management, Q2 2026 | $24.4M | 1.11% |
Anand ParekhAlyeska Investment Group, Q2 2026 | $20.3M | 0.05% |
| $2.8M | 0.00% |
Politicians who own it
Estimated from annual disclosures and trades; values are rough estimates.
No member of Congress is estimated to hold this stock.
Investors buying and selling
| Investor | Action | Shares now |
|---|---|---|
| Darwin Global Management | Added +19% | 15,397,975 |
| Julian i Felix Baker | Added +7.5% | 5,380,626 |
| Stanley Druckenmiller | Added +131% | 1,369,050 |
| Lee Ainslie | New | 425,125 |
| Joseph Edelman | Added +254% | 509,300 |
| David Kroin | New | 254,751 |
| Anand Parekh | Reduced −21% | 735,000 |
| George Soros | Reduced −32% | 307,211 |
| Howard MarksBond | Sold out | 0 |
| Daniel Schneeberger | Reduced −72% | 6,074 |
Politicians trading it
Latest Congress trades disclosed under the STOCK Act; amounts are ranges.
| Politician | Action | Traded |
|---|---|---|
Josh GottheimerJointD-NJ · House | Sold part$1K–$15K | Jun 10, 2026disclosed Jul 7, 2026 |
Gilbert Ray Cisneros, Jr.D-CA · House | Sold$1K–$15K | Oct 3, 2025disclosed Nov 18, 2025 |
Gilbert Ray Cisneros, Jr.D-CA · House | Sold part$1K–$15K | Sep 22, 2025disclosed Oct 10, 2025 |
Gilbert Ray Cisneros, Jr.D-CA · House | Sold part$1K–$15K | Aug 8, 2025disclosed Sep 12, 2025 |
Gilbert Ray Cisneros, Jr.D-CA · House | Sold part$1K–$15K | Jul 7, 2025disclosed Aug 14, 2025 |
Josh GottheimerJointD-NJ · House | Bought$1K–$15K | Jun 16, 2025disclosed Jul 16, 2025 |
Josh GottheimerJointD-NJ · House | Sold part$1K–$15K | Apr 9, 2025disclosed May 14, 2025 |
Josh GottheimerJointD-NJ · House | Sold part$1K–$15K | Jun 21, 2024disclosed Jul 9, 2024 |
Josh GottheimerJointD-NJ · House | Sold part$1K–$15K | May 28, 2024disclosed Jun 8, 2024 |
Josh GottheimerJointD-NJ · House | Bought$1K–$15K | Dec 6, 2022disclosed Jan 13, 2023 |