Which hedge funds own IONS? IONIS PHARMACEUTICALS INC, Q2 2026 13F holders
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9 of the hedge funds tracked by WhaleCreep disclosed a position in IONS (IONIS PHARMACEUTICALS INC) in their Q2 2026 13F filings, worth $292.9m in total. The largest holder by portfolio weight is Tweedy Browne at 13.7% of its book. 1 exited: Farallon Capital Management.
9tracked managers holding
0opened this quarter
1exited this quarter
Which hedge funds hold IONS? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Tweedy Browne | Q2 2026 | 13.7% | $180.8m | 2,280,311 | 0% | held |
| Renaissance Technologies LLC | Q2 2026 | 0.1% | $44.4m | 559,414 | 83% | added |
| Suvretta Capital Management | Q2 2026 | 0.0% | $856.3k | 10,800 | 0% | held |
| Millennium Management | Q2 2026 | 0.0% | $22.9m | 288,872 | -73% | reduced |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $23.6m | 297,041 | -31% | reduced |
| Citadel Advisors | Q2 2026 | 0.0% | $18.7m | 236,284 | -75% | reduced |
| Horizon Kinetics | Q2 2026 | 0.0% | $864.6k | 10,904 | -5% | reduced |
| Ancora Advisors | Q2 2026 | 0.0% | $175.6k | 2,215 | -7% | reduced |
| Marshall Wace | Q2 2026 | 0.0% | $674.0k | 8,501 | -91% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Farallon Capital Management | 0.0% | $360.4k |
How has hedge fund ownership of IONS changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 9 | $292.9m |
| Q1 2026 | 11 | $388.8m |
| Q4 2025 | 8 | $220.7m |
| Q3 2025 | 7 | $226.5m |
| Q2 2025 | 7 | $166.5m |
| Q1 2025 | 7 | $105.9m |
| Q4 2024 | 5 | $125.3m |
| Q3 2024 | 6 | $151.8m |
| Q2 2024 | 9 | $209.8m |
| Q1 2024 | 9 | $230.9m |
| Q4 2023 | 7 | $322.2m |
| Q3 2023 | 7 | $232.8m |
| Q2 2023 | 9 | $221.0m |
| Q1 2023 | 7 | $162.2m |
| Q4 2022 | 6 | $194.2m |
| Q3 2022 | 7 | $185.6m |
Counts every tracked manager that disclosed IONS in that quarter's filing, including managers that have since stopped filing.