Ionis Pharmaceuticals Inc (IONS) insider trading
Every open-market stock purchase and sale by Ionis Pharmaceuticals Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Michael R Hayden (Director) bought $1.1M in the last 90 days, more than doubling their stake.
- Shannon L. Devers (VP) and 1 other sold $61.4K in the last 90 days.
Last 12 months: insiders bought $1.1M (1 buy) and sold $134M (71 sales). Last close $44.27 on Oct 21, 2026.
Recent IONS insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 16, 2026 | Shannon L. Devers (VP) | Sold | $59.1K |
| Oct 16, 2026 | Eric Swayze (VP) | Sold | $2.3K |
| Oct 15, 2026 | Shannon L. Devers (VP) | Bought (not open market) | — |
| Oct 15, 2026 | Shannon L. Devers (VP) | Bought (not open market) | — |
| Oct 15, 2026 | Eric Swayze (VP) | Bought (not open market) | — |
| Oct 15, 2026 | Eric Swayze (VP) | Bought (not open market) | — |
| Aug 31, 2026 | C Frank Bennett (C-suite exec) | Bought (not open market) | $5.6K |
| Aug 31, 2026 | Brett P Monia (CEO) | Bought (not open market) | $5K |
| Aug 31, 2026 | Patrick R. O'Neil (C-suite exec) | Bought (not open market) | $3.2K |
| Aug 31, 2026 | Brian Birchler (VP) | Bought (not open market) | $3K |
| Jul 31, 2026 | Michael R Hayden (Director) | Bought | $258K |
| Jul 30, 2026 | Michael R Hayden (Director) | Bought | $801K |
| Jul 15, 2026 | Peter N Reikes (Director) | Bought (not open market) | — |
| Jul 15, 2026 | Ludwig Hantson (Director) | Bought (not open market) | — |
| Jul 15, 2026 | Joan E Herman (Director) | Bought (not open market) | — |
| Jul 15, 2026 | Spencer R Berthelsen (Director) | Bought (not open market) | — |
| Jul 7, 2026 | C Frank Bennett (C-suite exec) | Sold | $1.3M |
| Jul 7, 2026 | Allene M. Diaz (Director) | Sold | $864K |
| Jul 7, 2026 | C Frank Bennett (C-suite exec) | Sold | $463K |
| Jul 7, 2026 | Holly B. Kordasiewicz (C-suite exec) | Sold | $30.5K |
| Jul 7, 2026 | Allene M. Diaz (Director) | Bought (not open market) | — |
| Jul 7, 2026 | C Frank Bennett (C-suite exec) | Sold (not open market) | — |
| Jul 1, 2026 | Joseph Klein III (Director) | Sold | $903K |
| Jul 1, 2026 | Joseph Klein III (Director) | Sold | $7.9K |
| Jul 1, 2026 | Joan E Herman (Director) | Bought (not open market) | — |
Who's trading IONS
- Eric Swayze, VP: sold $5.2M (9 sales), last Oct 16, 2026
- Shannon L. Devers, VP: sold $8.2M (13 sales), last Oct 16, 2026
- Brian Birchler, VP: sold $1.8M (4 sales), last Aug 31, 2026
- Brett P Monia, CEO: sold $30.3M (13 sales), last Aug 31, 2026
- Patrick R. O'Neil, C-suite exec: sold $2.2M (4 sales), last Aug 31, 2026
- C Frank Bennett, C-suite exec: sold $16.7M (10 sales), last Aug 31, 2026
- Michael R Hayden, Director: bought $1.1M (2 buys), last Jul 31, 2026
- Spencer R Berthelsen, Director: sold $1.2M (2 sales), last Jul 15, 2026
- Peter N Reikes, Director: other filings, last Jul 15, 2026
- Ludwig Hantson, Director: other filings, last Jul 15, 2026
- Joan E Herman, Director: sold $3.2M (2 sales), last Jul 15, 2026
- Allene M. Diaz, Director: sold $5.2M (4 sales), last Jul 7, 2026
- Holly B. Kordasiewicz, C-suite exec: sold $4.8M (4 sales), last Jul 7, 2026
- Michael J. Yang, Director: other filings, last Jul 1, 2026
- Joseph Klein III, Director: sold $5.4M (10 sales), last Jul 1, 2026
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