Ionis Pharmaceuticals Inc. Common Stock (IONS) market history

Ionis Pharmaceuticals Inc. Common Stock (IONS) last session 2026-08-05 closed at $53.91 (-2.11%).

See what moved the market on any trading day in history. Open any trading session on the chart for the news and events behind the move. Informational only; not investment advice.

Open IONS on xPlanar

Browse all active symbols