Who owns Ionis Pharmaceuticals?
- Ticker: IONS
- CUSIP Number: 462222100
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Analyze quarterly positions in Ionis Pharmaceuticals with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Ionis Pharmaceuticals stock
Who bought or sold Ionis Pharmaceuticals this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| FMR | 24M | $1.9B | 2% | Dec 2025 |
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| Capital World Investors | 21M | $1.6B | 18% | Mar 2026 |
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| Vanguard Group | 16M | $1.3B | 0% | Dec 2025 |
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| BlackRock | 10M | $784M | -2% | Mar 2026 |
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| T. Rowe Price Investment Management | 9.1M | $721M | -31% | Dec 2025 |
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| Vanguard Portfolio Management | 7.8M | $586M | 100% | Mar 2026 |
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| Vanguard Capital Management | 7.1M | $535M | 100% | Mar 2026 |
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| Wellington Management Company | 6.3M | $495M | -5% | Dec 2025 |
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| Two Sigma Investments | 5.9M | $440M | 120% | Mar 2026 |
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| Bellevue Group | 4.8M | $380M | -23% | Dec 2025 |
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| Geode Capital Management | 4.0M | $306M | 27% | Mar 2026 |
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| State Street Corporation | 4.0M | $315M | -9% | Dec 2025 |
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| Royal Bank of Canada | 3.8M | $286M | 161% | Mar 2026 |
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| Tweedy, Browne Company | 2.3M | $171M | -8% | Mar 2026 |
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| Artisan Partners Limited Partnership | 2.1M | $155M | 74% | Mar 2026 |
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| Baker Bros. Advisors | 2.0M | $154M | 14% | Mar 2026 |
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| Deerfield Management Company | 2.0M | $149M | 0% | Mar 2026 |
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| Deep Track Capital | 2.0M | $146M | 15% | Mar 2026 |
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| Summit Partners Public Asset Management | 1.8M | $139M | 31% | Dec 2025 |
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| Goldman Sachs Group | 1.7M | $128M | 59% | Mar 2026 |
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| American Century Companies | 1.6M | $128M | 18% | Dec 2025 |
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| Franklin Resources | 1.6M | $118M | 19% | Mar 2026 |
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| Charles Schwab Investment Management | 1.5M | $122M | 1% | Dec 2025 |
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| Ubs Global Asset Management Americas | 1.5M | $111M | 6% | Mar 2026 |
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| Pictet Asset Management Holding SA | 1.4M | $107M | 1% | Mar 2026 |
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| Bnp Paribas Investment Partners | 1.4M | $107M | 28% | Dec 2025 |
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| Polar Capital Holdings | 1.3M | $106M | 29% | Dec 2025 |
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| Citadel Advisors | 1.3M | $98M | -44% | Mar 2026 |
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| Invesco | 1.3M | $96M | 1% | Mar 2026 |
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| Barclays | 1.1M | $89M | 10% | Dec 2025 |
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| Arrowstreet Capital, Limited Partnership | 1.1M | $84M | 69% | Dec 2025 |
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| Millennium Management | 1.1M | $79M | 1027% | Mar 2026 |
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| Morgan Stanley | 1.0M | $77M | 100% | Mar 2026 |
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| Vanguard Fiduciary Trust | 1.0M | $77M | 100% | Mar 2026 |
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| Connor, Clark & Lunn Investment Management | 874k | $66M | -19% | Mar 2026 |
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| Susquehanna International | 848k | $67M | -25% | Dec 2025 |
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| Northern Trust | 847k | $67M | 0% | Dec 2025 |
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| Bank of America Corporation | 841k | $63M | 100% | Mar 2026 |
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| Massachusetts Financial Services | 813k | $64M | -6% | Dec 2025 |
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| UBS Group | 808k | $61M | -23% | Mar 2026 |
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| Nomura Asset Management International | 785k | $59M | 100% | Mar 2026 |
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| Jennifer Ranahan | 779k | $59M | -1% | Mar 2026 |
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| Groupama Asset Managment | 767k | $61M | -28% | Dec 2025 |
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| Jane Street | 760k | $57M | 556% | Mar 2026 |
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| Squarepoint Ops | 695k | $52M | 57% | Mar 2026 |
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| Voloridge Investment Management | 673k | $51M | 15% | Mar 2026 |
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| Ameriprise Financial | 660k | $50M | 10% | Mar 2026 |
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| Nuveen | 649k | $49M | -2% | Mar 2026 |
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| Eventide Asset Management | 575k | $46M | 100% | Dec 2025 |
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| Tri Locum Partners | 557k | $44M | 100% | Dec 2025 |
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| Eversept Partners | 538k | $43M | 0% | Dec 2025 |
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| TD Asset Management | 530k | $40M | -31% | Mar 2026 |
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| Teacher Retirement System Of Texas | 524k | $39M | 24% | Mar 2026 |
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| Bank of New York Mellon | 515k | $39M | -4% | Mar 2026 |
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| Perceptive Advisors | 504k | $38M | 100% | Mar 2026 |
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| Boone Capital Management | 501k | $38M | 20% | Mar 2026 |
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| Candriam Luxembourg S.C.A. | 484k | $36M | -29% | Mar 2026 |
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| Bnp Paribas Arbitrage, Snc | 480k | $36M | 43% | Mar 2026 |
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| Alyeska Investment Group | 473k | $36M | -2% | Mar 2026 |
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| First Trust Advisors | 468k | $35M | -11% | Mar 2026 |
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| Gail Mannix | 437k | $33M | -6% | Mar 2026 |
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| D. E. Shaw & Co | 430k | $32M | 29% | Mar 2026 |
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| Alliancebernstein | 401k | $32M | 17% | Mar 2026 |
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| CAM Group Holding A/S | 366k | $28M | 0% | Mar 2026 |
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| New York State Common Retirement Fund | 350k | $26M | 45% | Mar 2026 |
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| Capital Research Global Investors | 323k | $24M | 100% | Mar 2026 |
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| Swiss National Bank | 305k | $23M | 2% | Mar 2026 |
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| Hudson Bay Capital Management | 295k | $22M | -38% | Mar 2026 |
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| Legal & General Group | 295k | $22M | -9% | Mar 2026 |
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| Privium Fund Management B.V. | 290k | $22M | 20% | Mar 2026 |
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| ARK Investment Management | 289k | $22M | -32% | Mar 2026 |
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| TimesSquare Capital Management | 276k | $21M | 100% | Mar 2026 |
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| Dimensional Fund Advisors | 267k | $20M | 52% | Mar 2026 |
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| Citigroup | 263k | $20M | 100% | Mar 2026 |
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| Raymond James Financial | 257k | $20M | 7% | Dec 2025 |
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| Marshall Wace | 257k | $20M | -73% | Dec 2025 |
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| CalPERS | 256k | $19M | 20% | Mar 2026 |
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| Hrt Financial | 252k | $19M | 1000% | Mar 2026 |
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| Zurich Insurance Group Ltd/FI | 240k | $18M | -8% | Mar 2026 |
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| Ikarian Capital | 239k | $18M | -19% | Mar 2026 |
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| Davern Capital Partners | 239k | $19M | 100% | Dec 2025 |
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| Davenport & Co | 238k | $18M | 9% | Mar 2026 |
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| Orion Investment | 225k | $17M | 0% | Mar 2026 |
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| Renaissance Technologies | 224k | $18M | -54% | Dec 2025 |
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| Tocqueville Asset Management | 220k | $17M | 8% | Mar 2026 |
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| Universal- Beteiligungs- und Servicegesellschaft mbH | 220k | $17M | 0% | Mar 2026 |
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| Handelsbanken Fonder AB | 214k | $16M | 346% | Mar 2026 |
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| Trexquant Investment | 214k | $16M | 62% | Mar 2026 |
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| Stifel Financial | 197k | $15M | -1% | Mar 2026 |
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| CI Private Wealth | 197k | $15M | -9% | Mar 2026 |
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| Wells Fargo & Company | 190k | $14M | -32% | Mar 2026 |
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| Hsbc Holdings | 186k | $14M | 590% | Mar 2026 |
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| Colony | 182k | $14M | 100% | Dec 2025 |
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| California State Teachers Retirement System | 177k | $13M | 22% | Mar 2026 |
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| Nomura Holdings | 174k | $13M | -82% | Mar 2026 |
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| Rhumbline Advisers | 173k | $13M | -1% | Mar 2026 |
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| Sector Gamma ASA | 170k | $13M | -8% | Mar 2026 |
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| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 168k | $13M | 0% | Mar 2026 |
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| ADAR1 Capital Management | 160k | $12M | 9% | Mar 2026 |
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| Deutsche Bank Aktiengesellschaft | 160k | $12M | 7% | Mar 2026 |
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| Sicart Associates | 159k | $12M | -3% | Mar 2026 |
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| Sei Investments | 157k | $12M | 36% | Mar 2026 |
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| CenterBook Partners | 151k | $11M | -2% | Mar 2026 |
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| Manufacturers Life Insurance Company | 150k | $11M | -2% | Mar 2026 |
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| Aquatic Capital Management | 147k | $11M | 11% | Mar 2026 |
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| Caption Management | 145k | $12M | 26% | Dec 2025 |
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| Artia Global Partners | 144k | $11M | 0% | Mar 2026 |
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| Capital Fund Management | 142k | $11M | 100% | Mar 2026 |
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| Fisher Investments | 142k | $11M | 0% | Mar 2026 |
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| Adage Capital Partners GP | 140k | $11M | -89% | Dec 2025 |
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| Vanguard Asset Management | 138k | $10M | 100% | Mar 2026 |
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| Edmond De Rothschild Holding | 137k | $10M | 12% | Mar 2026 |
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| Florida State Board of Administration | 136k | $10M | 0% | Mar 2026 |
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| Braidwell | 131k | $9.8M | 100% | Mar 2026 |
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| Wintrust Financial Corporation | 119k | $8.9M | -20% | Mar 2026 |
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| Algert Coldiron Investors | 117k | $8.8M | -8% | Mar 2026 |
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| Exome Asset Management | 117k | $9.2M | -11% | Dec 2025 |
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| Skandinaviska Enskilda Banken AB | 115k | $9.1M | -26% | Dec 2025 |
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| SEB Asset Management AB | 114k | $8.6M | 100% | Mar 2026 |
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| Standard Life Aberdeen | 114k | $8.5M | 294% | Mar 2026 |
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| Kennedy Capital Management | 112k | $8.4M | 2% | Mar 2026 |
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| Healthcare Of Ontario Pension Plan Trust Fund | 110k | $8.7M | -5% | Dec 2025 |
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| Boothbay Fund Management | 108k | $8.1M | 6% | Mar 2026 |
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| Neuberger Berman Group | 108k | $8.5M | -6% | Dec 2025 |
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| Winton Capital | 107k | $8.0M | 100% | Mar 2026 |
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| Diadema Partners | 106k | $8.4M | 6% | Dec 2025 |
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| Gotham Asset Management | 99k | $7.4M | 129% | Mar 2026 |
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| Simplex Trading | 97k | $7.6M | -4% | Dec 2025 |
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| Susquehanna Portfolio Strategies | 96k | $7.6M | 0% | Dec 2025 |
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| State of Wisconsin Investment Board | 95k | $7.5M | -2% | Dec 2025 |
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| DekaBank Deutsche Girozentrale | 94k | $6.9M | 0% | Mar 2026 |
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| Envestnet Asset Management | 93k | $7.0M | 4% | Mar 2026 |
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| Rhenman & Partners Asset Management AB | 93k | $7.0M | -41% | Mar 2026 |
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| J. Goldman & Co | 93k | $7.3M | -4% | Dec 2025 |
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| Walleye Trading Advisors | 85k | $6.4M | 302% | Mar 2026 |
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| Sumitomo Mitsui Trust Holdings | 82k | $6.1M | -13% | Mar 2026 |
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| Nikko Asset Management Americas | 82k | $6.1M | -13% | Mar 2026 |
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| CSS | 81k | $6.1M | 100% | Mar 2026 |
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| Victory Capital Management | 81k | $6.4M | 343% | Dec 2025 |
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| China Universal Asset Management | 77k | $5.8M | 82% | Mar 2026 |
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| AH Lisanti Capital Growth | 76k | $5.7M | 131% | Mar 2026 |
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| EFG International | 75k | $6.0M | 100% | Dec 2025 |
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| Rafferty Asset Management | 74k | $5.9M | -41% | Dec 2025 |
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| Vanguard Global Advisers | 72k | $5.4M | 100% | Mar 2026 |
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| Erste Asset Management GmbH | 72k | $5.2M | 0% | Mar 2026 |
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| Hillsdale Investment Management | 71k | $5.3M | 0% | Mar 2026 |
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| Ing Investment Management | 69k | $5.2M | -6% | Mar 2026 |
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| Tudor Investment Corporation | 69k | $5.2M | 1786% | Mar 2026 |
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| Wolverine Asset Management | 68k | $5.1M | 4% | Mar 2026 |
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| Police & Firemen's Retirement System of New Jersey | 67k | $5.1M | 1% | Mar 2026 |
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| Treasurer of the State of North Carolina | 66k | $5.2M | -5% | Dec 2025 |
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| DCF Advisers | 56k | $4.2M | -46% | Mar 2026 |
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| Fideuram - Intesa Sanpaolo Private Banking S.p.a. | 54k | $4.1M | -55% | Mar 2026 |
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| Nicola Wealth Management | 52k | $3.9M | -40% | Mar 2026 |
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| Van Eck Associates Corp. | 47k | $3.7M | -58% | Dec 2025 |
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| HealthInvest Partners AB | 28k | $9.4M | -70% | Mar 2026 |
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| Jain Global | 26k | $2.0M | -93% | Mar 2026 |
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| Man Group | 24k | $1.8M | -86% | Mar 2026 |
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| Amundi | 24k | $1.8M | -95% | Mar 2026 |
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| Cinctive Capital Management | 14k | $1.1M | -92% | Dec 2025 |
|
| Natixis | 6.1k | $482k | -96% | Dec 2025 |
|
Who sold out of Ionis Pharmaceuticals?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Lombard Odier Asset Management | Sep 2025 | 6.5M | $9.0M |
| Two Sigma Advisers | Dec 2025 | 3.1M | $242M |
| Macquarie Group | Sep 2025 | 1.1M | $74M |
| Jpmorgan Chase & Co | Sep 2025 | 545k | $36M |
| Balyasny Asset Management | Dec 2025 | 381k | $30M |
| Norges Bank Investment Management | Dec 2025 | 320k | $25M |
| ExodusPoint Capital Management | Dec 2025 | 84k | $6.6M |
| Bridgewater Associates | Dec 2025 | 68k | $5.4M |