ARK Investment Management (Cathie Wood) — IONS Trade History
Quarter-by-quarter changes in the Ionis Pharmaceuticals Inc position · CUSIP 462222100
Currently held · 9.8 YearsFirst seen: 2016 Q4
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-08-14 | Add | 300,770 | 12,054 | +4.2% | $23.8M | 0.15% |
| 2026 Q1 | 2026-05-12 | Reduce | 288,716 | -134,252 | -31.7% | $21.7M | 0.17% |
| 2025 Q4 | 2026-02-11 | Reduce | 422,968 | -208,247 | -33.0% | $33.5M | 0.22% |
| 2025 Q3 | 2025-11-12 | Reduce | 631,215 | -269,103 | -29.9% | $41.3M | 0.25% |
| 2025 Q2 | 2025-07-30 | Reduce | 900,318 | -100,209 | -10.0% | $35.6M | 0.26% |
| 2025 Q1 | 2025-05-07 | Reduce | 1,000,527 | -24,733 | -2.4% | $30.2M | 0.30% |
| 2024 Q4 | 2025-02-04 | Reduce | 1,025,260 | -359,009 | -25.9% | $35.8M | 0.30% |
| 2024 Q3 | 2024-10-31 | Add | 1,384,269 | 23,244 | +1.7% | $55.5M | 0.51% |
| 2024 Q2 | 2024-07-26 | Reduce | 1,361,025 | -38,827 | -2.8% | $64.9M | 0.58% |
| 2024 Q1 | 2024-04-18 | Reduce | 1,399,852 | -505,204 | -26.5% | $60.7M | 0.42% |
| 2023 Q4 | 2024-01-17 | Reduce | 1,905,056 | -461,311 | -19.5% | $96.4M | 0.57% |
| 2023 Q3 | 2023-10-18 | Reduce | 2,366,367 | -56,264 | -2.3% | $107.3M | 0.82% |
| 2023 Q2 | 2023-07-10 | Reduce | 2,422,631 | -214,561 | -8.1% | $99.4M | 0.66% |
| 2023 Q1 | 2023-04-17 | Reduce | 2,637,192 | -36,346 | -1.4% | $94.3M | 0.65% |
| 2022 Q4 | 2023-01-24 | Reduce | 2,673,538 | -1,039,569 | -28.0% | $101.0M | 0.88% |
| 2022 Q3 | 2022-10-17 | Reduce | 3,713,107 | -988,190 | -21.0% | $164.2M | 1.15% |
| 2022 Q2 | 2022-07-11 | Reduce | 4,701,297 | -1,470,011 | -23.8% | $171.7M | 1.01% |
| 2022 Q1 | 2022-04-19 | Reduce | 6,171,308 | -911,948 | -12.9% | $228.6M | 0.95% |
| 2021 Q4 | 2022-01-28 | Reduce | 7,083,256 | -1,428,128 | -16.8% | $215.5M | 0.65% |
| 2021 Q3 | 2021-11-12 | Reduce | 8,511,384 | -396,349 | -4.4% | $285.5M | 0.69% |
| 2021 Q2 | 2021-08-05 | Add | 8,907,733 | 3,765,462 | +73.2% | $355.3M | 0.66% |
| 2021 Q1 | 2021-05-13 | Add | 5,142,271 | 2,742,717 | +114.3% | $231.2M | 0.46% |
| 2020 Q4 | 2021-02-12 | Add | 2,399,554 | 1,896,994 | +377.5% | $135.7M | 0.36% |
| 2020 Q3 | 2020-10-30 | Add | 502,560 | 158,429 | +46.0% | $23.8M | 0.14% |
| 2020 Q2 | 2020-08-11 | Add | 344,131 | 224,450 | +187.5% | $20.3M | 0.22% |
| 2020 Q1 | 2020-05-14 | Reduce | 119,681 | -96,344 | -44.6% | $5.7M | 0.14% |
| 2019 Q4 | 2020-01-31 | Add | 216,025 | 19,356 | +9.8% | $13.1M | 0.33% |
| 2019 Q3 | 2019-11-12 | Add | 196,669 | 38,896 | +24.7% | $11.8M | 0.26% |
| 2019 Q2 | 2019-07-30 | Reduce | 157,773 | -7,205 | -4.4% | $10.1M | 0.26% |
| 2019 Q1 | 2019-05-13 | Reduce | 164,978 | -77,334 | -31.9% | $13.4M | 0.38% |
| 2018 Q4 | 2019-02-11 | Add | 242,312 | 12,994 | +5.7% | $13.1M | 0.53% |
| 2018 Q3 | 2018-11-07 | Add | 229,318 | 16,191 | +7.6% | $11.8M | 0.36% |
| 2018 Q2 | 2018-08-07 | Reduce | 213,127 | -138,778 | -39.4% | $8.9M | 0.33% |
| 2018 Q1 | 2018-05-14 | Reduce | 351,905 | -18,930 | -5.1% | $15.5M | 0.77% |
| 2017 Q4 | 2018-02-12 | Add | 370,835 | 123,372 | +49.9% | $18.7M | 1.49% |
| 2017 Q3 | 2017-11-09 | Add | 247,463 | 70,472 | +39.8% | $12.5M | 1.53% |
| 2017 Q2 | 2017-08-11 | Add | 176,991 | 49,428 | +38.7% | $9.0M | 1.75% |
| 2017 Q1 | 2017-05-15 | Add | 127,563 | 120,942 | +1826.6% | $5.1M | 1.48% |
| 2016 Q4 | 2017-02-13 | New | 6,621 | 6,621 | — | $317.0K | 0.12% |
Share counts are split-adjusted. Time held counts consecutive quarters ending with the latest filing; more than ten years shows as ">10 Years".
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.