Ionis Pharmaceuticals Inc Insider Trading
Every director, officer and 10% holder of Ionis Pharmaceuticals Inc has to report each trade in its stock within two business days of making it. This is those filings.
IONS on carbonthat →Purchases and sales
Open-market trades only — the lines where someone chose to buy or sell at the going price.
| Insider | Action | Value |
|---|---|---|
| Michael R HaydenDirector2026-07-315K shat $51.60 | Purchase | $258K |
| Michael R HaydenDirector2026-07-3015K shat $53.38 | Purchase | $800.7K |
| C Frank BennettEVP, Chief Scientific Officer2026-07-075.5K shat $83.58 | Sale10b5-1 plan | $462.7K |
| C Frank BennettEVP, Chief Scientific Officer2026-07-0715K shat $85.46 | Sale10b5-1 plan | $1.3M |
| Allene M. DiazDirector2026-07-0710.1K shat $85.42 | Sale10b5-1 plan | $863.6K |
| Holly B. KordasiewiczEVP, Chief Development Officer2026-07-07362 shat $84.30 | Sale10b5-1 plan | $30.5K |
| Joseph Klein IIIDirector2026-07-0199 shat $79.45 | Sale10b5-1 plan | $7.9K |
| Joseph Klein IIIDirector2026-07-0111.4K shat $79.04 | Sale10b5-1 plan | $902.6K |
| Joseph BaroldiEVP, Chief Business Officer2026-06-265.6K shat $80.16 | Sale10b5-1 plan | $451.7K |
| Patrick R. O'NeilEVP CLO & General Counsel2026-06-263.1K shat $80.00 | Sale10b5-1 plan | $245.5K |
| Eugene SchneiderEVP, Chf Clinical Develop Ofcr2026-06-2626K shat $81.05 | Sale10b5-1 plan | $2.1M |
Source: SEC Form 4 filings, via EDGAR. A derivative line reports the shares underlying an option rather than stock outstanding, so it is marked and is not comparable with the rest. Value is shares times the reported price, and is blank where the filing priced the transaction at zero — a grant costs its recipient nothing. Insiders sell for reasons that have nothing to do with the company, which is why a sale is not read as a signal on its own.
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