IONS Institutional Ownership
Top institutional (13F) holders of IONS and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
47
Institutional value
$10.19B
Top holder
FMR LLC
Top holders
| Holder | Filed | Value |
|---|---|---|
| FMR LLCinvestment advisor | Aug 13, 2026 | $1.95B |
| Capital World Investorsinvestment advisor | Aug 12, 2026 | $1.72B |
| BlackRock, Inc.holding company | Aug 7, 2026 | $848.77M |
| Vanguard Portfolio Managementinvestment advisor | Aug 13, 2026 | $623.18M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | Aug 14, 2026 | $606.68M |
| Vanguard Capital Managementinvestment advisor | Aug 13, 2026 | $571.80M |
| TWO SIGMA INVESTMENTS, LPinvestment advisor | Aug 14, 2026 | $495.75M |
| ROYAL BANK OF CANADAinvestment advisor | Aug 14, 2026 | $490.21M |
| STATE STREET CORPORATIONinvestment advisor | Aug 7, 2026 | $343.71M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $294.75M |
| T. Rowe Price Associates, Inc.investment advisor | Aug 14, 2026 | $252.50M |
| JPMORGAN CHASE & COinvestment advisor | Aug 12, 2026 | $216.20M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | Aug 14, 2026 | $168.60M |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $167.30M |
| FRANKLIN RESOURCES INCinvestment advisor | Aug 13, 2026 | $128.72M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | Aug 14, 2026 | $127.26M |
| JANE STREET GROUP, LLCholding company | Aug 14, 2026 | $127.05M |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $101.61M |
| Invesco Ltd.investment advisor | Aug 14, 2026 | $88.86M |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $72.44M |
| CITADEL ADVISORS LLCinvestment advisor | Sep 1, 2026 | $67.82M |
| Capital International Investorsinvestment advisor | Aug 12, 2026 | $65.32M |
| BANK OF AMERICA CORP /DE/investment advisor | Aug 14, 2026 | $62.72M |
| Massachusetts Financial Services Companyinvestment advisor | Aug 3, 2026 | $51.68M |
| Neuberger Berman Group LLCinvestment advisor | Aug 13, 2026 | $50.23M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.