Who owns IONS
485 institutions reported holding IONS for 2026Q1, together 105% of the company, more than the 484 a quarter earlier.
485
Institutions reporting a position · as of 2026Q1 · up from 484 the quarter before
- Shares held by institutions
- 172.3M
Shares held by institutions · 105% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $12.9B
Reported value · at 2026-03-31 prices, not today's
- Top 5 holders
- 48%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 42
- New positions
- 67
- Positions exited
- 70
- Added to
- 167
- Reduced
- 143
- Top 10 holdersof the company
- 62%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 485 | 172.3M | $12.9B |
| 2025Q4 | 484 | 170.1M | $13.5B |
| 2025Q3 | 426 | 168.0M | $11.0B |
| 2025Q2 | 355 | 168.8M | $6.67B |
| 2025Q1 | 338 | 166.7M | $5.03B |
| 2024Q4 | 350 | 160.4M | $5.61B |
| 2024Q3 | 345 | 157.4M | $6.31B |
| 2024Q2 | 349 | 143.2M | $6.82B |
| 2024Q1 | 352 | 142.0M | $6.16B |
| 2023Q4 | 357 | 142.4M | $7.21B |
| 2023Q3 | 303 | 139.6M | $6.33B |
| 2023Q2 | 298 | 136.5M | $5.60B |
| 2023Q1 | 307 | 131.1M | $4.68B |
| 2022Q4 | 334 | 130.6M | $4.93B |
| 2022Q3 | 345 | 126.3M | $5.58B |
| 2022Q2 | 344 | 124.5M | $4.61B |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| FMR LLC | 24.6M | 15% | $1.84B |
| Capital World Investors | 21.2M | 13% | $1.59B |
| VANGUARD GROUP INC | 16.2M | 9.8% | $1.22B |
| BlackRock Inc. | 10.4M | 6.3% | $784M |
| WELLINGTON MANAGEMENT GROUP LLP | 6.4M | 3.9% | $480M |
| T. Rowe Price Investment Management, Inc. | 6.2M | 3.7% | $462M |
| TWO SIGMA INVESTMENTS, LP | 5.9M | 3.6% | $440M |
| STATE STREET CORP | 4.0M | 2.4% | $300M |
| GEODE CAPITAL MANAGEMENT LLC | 4.0M | 2.4% | $305M |
| ROYAL BANK OF CANADA | 3.8M | 2.3% | $285M |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
reading the register…