Spencer R Berthelsen has sold IONS and made no open-market buys since Jun 2018

Spencer R. Berthelsen is an individual and serves as a Director at Ionis Pharmaceuticals Inc. (NASDAQ: IONS), a leading biopharmaceutical company focused on RNA-targeted drug discovery and development.( Publicly available sources associated with his board role and recent insider trading activity identify him in that governance position at Ionis, including a reported sale of 8,000 shares of company stock.(

The available search results do not provide a detailed professional biography, prior career history, or education for Berthelsen. Based on the information found, his public profile is currently centered on his board service at Ionis Pharmaceuticals and related insider ownership disclosures.(

Written by Perplexity from public sources.