David Edward Johnson has bought EXEL on 3 days since Feb 2024

David E. Johnson is a Director at Exelixis, Inc. (EXEL), having joined the board in May 2023.( He recently engaged in insider trading, purchasing 225,000 shares on May 30, 2024, at $20.76 per share, and additional shares bringing his holdings to approximately 1.57 million shares valued at over $67 million as of late 2025.(

Since 2017, Mr. Johnson has served as Managing Partner and Chief Investment Officer of Caligan Partners LP, an SEC-registered investment adviser.( His prior roles include Managing Director at The Carlyle Group (2010-2017) and Vice President at Morgan Stanley's Principal Investments (2004-2010), with earlier experience at Weiss Asset Management.( He also serves on the board of Liquidia Corporation since 2021 and has held significant ownership stakes in companies like AMAG Pharmaceuticals and Standard BioTools.(

Written by Perplexity from public sources.