- Exclusive | Activist Starboard Value Takes $1 Billion Stake in PfizerThe Wall Street Journal
- Activist Starboard Value has $1 billion Pfizer stake, taps former executives for help, sources sayCNBC
- Activist investor Starboard Value takes $1 billion stake in Pfizer, WSJ reportsYahoo Finance
- Activist Starboard takes $1B stake in Pfizer – WSJSeeking Alpha
- Activist investor Starboard has just informed Pfizer it has taken a significant stakeBusiness Insider