IONS: Ionis Pharmaceuticals Inc insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 2 sales totaling $61K in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-16 | Devers Shannon L. | Officer | $59K | |
| 2026-10-16 | Swayze Eric | Officer | $2K |
Institutional ownership (Q2 2026)
516 institutions reported holding $13.52B of Ionis Pharmaceuticals Inc on Form 13F (499 the quarter before). 62 opened a new position and 46 sold out. Shares held by institutions: +4%.
| Largest holders | Shares | Value |
|---|---|---|
| FMR LLC | 24,631,956 | $1.95B |
| Capital World Investors | 21,669,226 | $1.72B |
| BlackRock, Inc. | 10,704,660 | $848.77M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7,859,529 | $623.18M |
| WELLINGTON MANAGEMENT GROUP LLP | 7,651,415 | $606.68M |
| VANGUARD CAPITAL MANAGEMENT LLC | 7,211,497 | $571.80M |
| TWO SIGMA INVESTMENTS, LP | 6,252,342 | $495.75M |
| ROYAL BANK OF CANADA | 6,182,479 | $490.21M |
| STATE STREET CORP | 4,334,848 | $343.71M |
| GEODE CAPITAL MANAGEMENT, LLC | 3,584,024 | $294.75M |
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