Alphabet shares fell as much as 7.2% on Monday. This represents the company's largest intraday decline since February.
John Jumper, a VP at Google DeepMind and 2024 Nobel Prize winner, resigned to join competitor Anthropic. Jumper earned the Nobel Prize for his work on the AlphaFold protein-structure model.
His departure follows Noam Shazeer, the co-lead of Google’s Gemini AI models, who joined OpenAI just days earlier. These successive losses to direct rivals have fueled investor concerns regarding Google’s talent retention. The exits raise questions about the company's ability to maintain its competitive edge in the AI sector.