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IONS: insider buying, 13F holders, analyst moves
Ionis Pharmaceuticals Inc - US
A summary of public filings about Ionis Pharmaceuticals Inc - US. For the latest insider history, price chart, analyst changes and activist filings, open the live lookup.
SEC Form 13F · Q2 2026
5 of our 100 managers hold IONS
Combined reported value $719.5M; 2 sold out since Q1 2026.
Holders among our 100 managers: 3 in Q3 2023, 5 in Q2 2026.
| Manager | Value | % of portfolio | Change vs Q1 2026 |
|---|---|---|---|
| Tweedy, Browne | $180.8M | 13.70% | Unchanged |
| Deep Track Capital | $174.4M | 2.57% | Added |
| Baker Bros. Advisors | $162.4M | 0.81% | Unchanged |
| Deerfield Company | $157.0M | 1.64% | Unchanged |
| Perceptive Advisors | $44.9M | 0.70% | Added |
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.