Tweedy, Browne Co LLC
- SEC CIK
- 0000732905
- Latest filing
- Aug 7, 2026
IONS holding history
Ionis Pharmaceuticals Inc in every 13F filed by Tweedy, Browne Co LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
IONS overviewAll 13F holders of IONSFull Q2 2026 holdings
- Shares (Q2 2026)
- 2,280,311
- Value
- $180.8M
- % of portfolio
- 13.7%
- Quarters held
- 18
- Since Q1 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,280,311 | $180.8M | 13.7% | +4,686+0.2% | Added | Holders |
| Q1 2026 | 2,275,625 | $170.9M | 13.6% | −189,305−7.7% | Reduced | Holders |
| Q4 2025 | 2,464,930 | $195.0M | 15.7% | −436,286−15.0% | Reduced | Holders |
| Q3 2025 | 2,901,216 | $189.8M | 16.5% | +9,268+0.3% | Added | Holders |
| Q2 2025 | 2,891,948 | $114.3M | 10.6% | −91,570−3.1% | Reduced | Holders |
| Q1 2025 | 2,983,518 | $90.0M | 8.0% | −265,345−8.2% | Reduced | Holders |
| Q4 2024 | 3,248,863 | $113.6M | 7.7% | −205,813−6.0% | Reduced | Holders |
| Q3 2024 | 3,454,676 | $138.4M | 6.6% | 00.0% | Unchanged | Holders |
| Q2 2024 | 3,454,676 | $164.6M | 7.6% | 00.0% | Unchanged | Holders |
| Q1 2024 | 3,454,676 | $149.8M | 7.0% | 00.0% | Unchanged | Holders |
| Q4 2023 | 3,454,676 | $174.8M | 8.5% | −55,497−1.6% | Reduced | Holders |
| Q3 2023 | 3,510,173 | $159.2M | 8.5% | −30,685−0.9% | Reduced | Holders |
| Q2 2023 | 3,540,858 | $145.3M | 7.6% | −1880.0% | Reduced | Holders |
| Q1 2023 | 3,541,046 | $126.6M | 6.9% | −900.0% | Reduced | Holders |
| Q4 2022 | 3,541,136 | $133.7M | 7.1% | +818,148+30.0% | Added | Holders |
| Q3 2022 | 2,722,988 | $120.4M | 5.3% | −3,790−0.1% | Reduced | Holders |
| Q2 2022 | 2,726,778 | $100.9M | 4.1% | −198,324−6.8% | Reduced | Holders |
| Q1 2022 | 2,925,102 | $108.3M | 3.5% | +2,925,102 | New | Holders |