Christopher Browne - Tweedy, Browne Co
Holding/activity history for Ionis Pharmaceuticals, Inc. (IONS)
← All IONS superinvestors
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026 Q1 | 2,275,625 | 13.57 | Reduce 7.68% | 1.21 | $68.90–86.74 · VW $79.31i | $170,876,681 | SEC |
| 2025 Q4 | 2,464,930 | 15.76 | Reduce 15.04% | 2.48 | $64.93–83.61 · VW $76.17i | $195,000,612 | SEC |
| 2025 Q3 | 2,901,216 | 16.48 | Add 0.32% | 0.05 | $39.72–65.55 · VW $50.53i | $189,797,551 | SEC |
| 2025 Q2 | 2,891,948 | 10.60 | Reduce 3.07% | 0.24 | $23.95–40.61 · VW $32.89i | $114,260,865 | SEC |
| 2025 Q1 | 2,983,518 | 7.98 | Reduce 8.17% | 0.63 | $29.61–35.48 · VW $32.41i | $90,012,738 | SEC |
| 2024 Q4 | 3,248,863 | 7.66 | Reduce 5.96% | 0.39 | $33.33–40.58 · VW $37.23i | $113,580,250 | SEC |
| 2024 Q3 | 3,454,676 | 6.60 | $40.06 | $138,394,321 | SEC | ||
| 2024 Q2 | 3,454,676 | 7.57 | $47.66 | $164,649,858 | SEC | ||
| 2024 Q1 | 3,454,676 | 7.03 | $43.35 | $149,760,205 | SEC | ||
| 2023 Q4 | 3,454,676 | 8.58 | Reduce 1.58% | 0.14 | $41.84–52.27 · VW $47.67i | $174,772,059 | SEC |
| 2023 Q3 | 3,510,173 | 8.57 | Reduce 0.87% | 0.07 | $38.26–47.72 · VW $42.00i | $159,221,447 | SEC |
| 2023 Q2 | 3,540,858 | 7.66 | Reduce 0.01% | <0.01 | $34.32–43.55 · VW $39.47i | $145,281,000 | SEC |
| 2023 Q1 | 3,541,046 | 6.93 | Reduce 0.00% | <0.01 | $32.69–41.73 · VW $37.35i | $126,557,000 | SEC |
| 2022 Q4 | 3,541,136 | 7.16 | Add 30.05% | 1.65 | $36.69–47.74 · VW $41.68i | $133,749,000 | SEC |
| 2022 Q3 | 2,722,988 | 5.30 | Reduce 0.14% | <0.01 | $35.95–48.82 · VW $42.04i | $120,438,000 | SEC |
| 2022 Q2 | 2,726,778 | 4.13 | Reduce 6.78% | 0.24 | $31.46–44.42 · VW $37.29i | $100,945,000 | SEC |
| 2022 Q1 | 2,925,102 | 3.50 | Buy | 3.50 | $28.25–37.15 · VW $32.76i | $108,346,000 | SEC |
Price snapshot:
Current price$56.75
Avg. buy price$37.30
+/- since buy52.15%
52-week low$40.03
52-week high$86.74