IONS
Ionis Pharmaceuticals IncCompany with tickers: IONS
Market Cap
$12.95B
Shares Outstanding
165,262,556
CIK
874015
CUSIP
462222100
13F Activity (30d)
33 filings
7 filers
Website
Visit website
Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this stock, matched by the stock's CUSIP. Each row is one fund position with its size, value and weight in that fund.
Funds holding IONS
392 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| Fidelity Growth Company Fund | — | 8,111,335 | $658,234,835 | 0.80% | Long | 2026-02-28 | |
| Growth Fund of America | — | 7,668,655 | $622,311,353 | 0.19% | Long | 2026-02-28 | |
| New Economy Fund | — | 4,723,802 | $383,336,532 | 0.85% | Long | 2026-02-28 | |
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 4,995,141 | $375,085,138 | 0.02% | Long | 2026-03-31 | |
| SMALLCAP World Fund Inc | — | 4,458,145 | $334,762,108 | 0.41% | Long | 2026-03-31 | |
| VANGUARD SMALL-CAP INDEX FUND | — | 3,618,441 | $271,708,735 | 0.17% | Long | 2026-03-31 | |
| T. Rowe Price Mid-Cap Growth Fund, Inc. | — | 2,760,687 | $207,299,987 | 0.92% | Long | 2026-03-31 | |
| Fidelity Growth Company K6 Fund | — | 2,315,503 | $187,903,068 | 0.81% | Long | 2026-02-28 | |
| Fidelity Series Growth Company Fund | — | 2,096,577 | $170,137,224 | 0.80% | Long | 2026-02-28 | |
| VANGUARD SMALL-CAP GROWTH INDEX FUND | — | 2,025,434 | $152,089,839 | 0.39% | Long | 2026-03-31 | |
| VANGUARD EXTENDED MARKET INDEX FUND | — | 1,808,172 | $135,775,635 | 0.17% | Long | 2026-03-31 | |
| Tweedy, Browne International Value Fund | — | 1,743,125 | $130,891,256 | 3.17% | Long | 2026-03-31 | |
| Growth Fund | — | 1,674,900 | $125,768,241 | 0.25% | Long | 2026-03-31 | |
| iShares Biotechnology ETF | — | 1,205,549 | $90,524,674 | 1.11% | Long | 2026-03-31 | |
| Capital Group Growth ETF | — | 1,054,074 | $85,538,105 | 0.42% | Long | 2026-02-28 | |
| State Street(R) SPDR(R) S&P(R) Biotech ETF | — | 1,132,906 | $85,069,912 | 1.14% | Long | 2026-03-31 | |
| iShares Russell Mid-Cap Growth ETF | — | 987,917 | $74,182,688 | 0.40% | Long | 2026-03-31 | |
| Fidelity Extended Market Index Fund | — | 847,073 | $68,739,974 | 0.17% | Long | 2026-02-28 | |
| T. Rowe Price Health Sciences Fund, Inc. | — | 882,823 | $66,291,179 | 0.61% | Long | 2026-03-31 | |
| Schwab U.S. Small-Cap ETF | — | 786,080 | $63,790,392 | 0.31% | Long | 2026-02-28 | |
| JPMorgan Mid Cap Growth Fund | — | 806,672 | $60,573,000 | 0.53% | Long | 2026-03-31 | |
| Franklin Dynatech Fund | — | 800,000 | $60,072,000 | 0.24% | Long | 2026-03-31 | |
| Nomura Mid Cap Growth Fund | — | 606,560 | $45,546,590 | 1.52% | Long | 2026-03-31 | |
| iShares Russell Mid-Cap ETF | — | 603,764 | $45,336,639 | 0.09% | Long | 2026-03-31 | |
| iShares Russell 1000 Growth ETF | — | 592,553 | $44,494,805 | 0.04% | Long | 2026-03-31 | |
| T. Rowe Price New Horizons Fund, Inc. | — | 578,082 | $43,408,177 | 0.34% | Long | 2026-03-31 | |
| Eventide Healthcare & Life Sciences Fund | — | 575,000 | $43,176,750 | 2.72% | Long | 2026-03-31 | |
| Select Biotechnology Portfolio | — | 476,377 | $38,657,994 | 0.72% | Long | 2026-02-28 | |
| JNL/T. Rowe Price Mid-Cap Growth Fund | — | 492,756 | $37,001,048 | 0.92% | Long | 2026-03-31 | |
| VANGUARD HEALTH CARE INDEX FUND | — | 455,079 | $36,929,661 | 0.18% | Long | 2026-02-28 | |
| Schwab U.S. Mid-Cap ETF | — | 438,078 | $35,550,030 | 0.26% | Long | 2026-02-28 | |
| Artisan International Small-Mid Fund | — | 390,363 | $29,312,358 | 1.10% | Long | 2026-03-31 | |
| Global Growth Fund | — | 388,000 | $29,134,920 | 0.34% | Long | 2026-03-31 | |
| VANGUARD STRATEGIC EQUITY FUND | — | 379,257 | $28,478,408 | 0.28% | Long | 2026-03-31 | |
| T. Rowe Price Institutional Mid-Cap Equity Growth Fund | — | 334,595 | $25,124,739 | 0.91% | Long | 2026-03-31 | |
| MFS New Discovery Fund | — | 306,440 | $24,867,606 | 1.19% | Long | 2026-02-28 | |
| Fidelity Total Market Index Fund | — | 304,119 | $24,679,257 | 0.02% | Long | 2026-02-28 | |
| Capital Group U.S. Small and Mid Cap ETF | — | 272,278 | $22,095,360 | 1.32% | Long | 2026-02-28 | |
| Strategic Advisers U.S. Total Stock Fund | — | 269,755 | $21,890,618 | 0.02% | Long | 2026-02-28 | |
| ARK Genomic Revolution ETF | — | 288,230 | $21,548,075 | 1.74% | Long | 2026-04-30 | |
| Artisan Small Cap Fund | — | 280,144 | $21,036,013 | 2.36% | Long | 2026-03-31 | |
| VANGUARD RUSSELL 1000 GROWTH INDEX FUND | — | 242,155 | $19,650,878 | 0.04% | Long | 2026-02-28 | |
| Fidelity Series Total Market Index Fund | — | 240,112 | $19,485,089 | 0.02% | Long | 2026-02-28 | |
| MassMutual Mid Cap Growth Fund | — | 254,240 | $19,090,882 | 0.69% | Long | 2026-03-31 | |
| Empower T. Rowe Price Mid Cap Growth Fund | — | 239,848 | $18,010,187 | 0.95% | Long | 2026-03-31 | |
| College Retirement Equities Fund - Total Global Stock Account | — | 230,687 | $17,322,287 | 0.01% | Long | 2026-03-31 | |
| T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund | — | 227,425 | $17,077,343 | 0.21% | Long | 2026-03-31 | |
| JNL/JPMorgan MidCap Growth Fund | — | 221,855 | $16,659,092 | 0.53% | Long | 2026-03-31 | |
| T. Rowe Price Diversified Mid-Cap Growth Fund, Inc. | — | 221,400 | $16,624,926 | 0.39% | Long | 2026-03-31 | |
| MFS New Discovery Value Fund | — | 204,801 | $16,619,601 | 0.61% | Long | 2026-02-28 |
Showing 1–50 of 392 positions