IONIS PHARMACEUTICALS INC COM is a security (CUSIP 462222100) tracked across SEC portfolio filings. 520 institutional managers reported $12.4B on Form 13F as of 2026-06-30; 63 registered fund positions totaling $3.1B via N-PORT as of 2026-05-31.
Showing 15 of 520 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| FMR LLC | BOSTON, MA | $1.8B | 24,556,637 |
| Capital World Investors | LOS ANGELES, CA | $1.6B | 21,186,369 |
| VANGUARD GROUP INC | Valley Forge, PA | $1.3B | 16,440,459 |
| BlackRock, Inc. | New York, NY | $784.1M | 10,442,476 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $480.0M | 6,391,816 |
| TWO SIGMA INVESTMENTS, LP | New York, NY | $439.8M | 5,857,629 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $305.2M | 3,984,332 |
| STATE STREET CORP | BOSTON, MA | $300.0M | 3,995,564 |
| Royal Bank of Canada | TORONTO, A6 | $285.5M | 3,801,815 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $171.4M | 2,363,567 |
| Tweedy, Browne Co LLC | Stamford, CT | $170.9M | 2,275,625 |
| Artisan Partners Limited Partnership | Milwaukee, WI | $154.6M | 2,058,308 |
| BAKER BROS. ADVISORS LP | NEW YORK, NY | $153.8M | 2,047,727 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | New York, NY | $148.7M | 1,979,669 |
| Deep Track Capital, LP | GREENWICH, CT | $146.4M | 1,950,000 |
Showing 15 of 63 fund positions by value.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Fidelity Growth Company Fund | Fidelity Mt. Vernon Street Trust | $648.1M | 65.61% |
| Growth Fund of America | Growth Fund of America | $586.7M | 16.25% |
| New Economy Fund | New Economy Fund | $372.5M | 72.18% |
| SMALLCAP World Fund Inc | SMALLCAP World Fund Inc | $334.8M | 41.31% |
| VANGUARD HEALTH CARE FUND | VANGUARD SPECIALIZED FUNDS | $284.3M | 77.13% |
| T. Rowe Price Mid-Cap Growth Fund, Inc. | T. ROWE PRICE MID-CAP GROWTH FUND, INC. | $207.3M | 92.02% |
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $135.8M | 16.66% |
| VANGUARD EXPLORER FUND | VANGUARD EXPLORER FUND | $89.4M | 41.07% |
| Capital Group Growth ETF | Capital Group Growth ETF | $88.0M | 36.12% |
| Select Fund | American Century Mutual Funds, Inc. | $71.9M | 112.49% |
| T. Rowe Price Health Sciences Fund, Inc. | T. ROWE PRICE HEALTH SCIENCES FUND, INC. | $66.3M | 60.85% |
| T. Rowe Price New Horizons Fund, Inc. | T. ROWE PRICE NEW HORIZONS FUND, INC. | $43.4M | 34.00% |
| VANGUARD STRATEGIC EQUITY FUND | VANGUARD HORIZON FUNDS | $28.5M | 28.15% |
| T. Rowe Price Diversified Mid-Cap Growth Fund, Inc. | T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC. | $16.6M | 39.05% |
| MFS New Discovery Value Fund | MFS SERIES TRUST XIII | $14.2M | 57.14% |