Google's latest artificial intelligence leadership overhaul has coincided with a reported 5% share-price drop after the company announced the departure of Jeff Dean and others, while Demis Hassabis shifts away from day-to-day management at Google DeepMind. Industry sources cited by BlockBeats said Hassabis had originally planned to leave Google at the same time as Dean, but management concluded that announcing both departures together could trigger a sharper market selloff. Hassabis was instead persuaded to transition to Google DeepMind chairman and Alphabet chief scientist, a move the report said would let the organization stabilize while allowing him to focus more on scientific work and on Isomorphic Labs, Alphabet's drug-discovery company. The same sources predict Hassabis will fully leave Google within a year. Dean, one of Google's earliest employees and a central architect of the company's AI strategy for the past 15 years, is set to leave and become chief executive of Discovery Loop, a new nonprofit company. Joining him are longtime Google employees Oriol Vinyals, Quoc Le and Sanjay Ghemawat, four researchers the report said collectively drove major advances in mathematics and protein structure and rank among the world's most-cited scientists. Their exit adds to what the report describes as a broader recent loss of AI talent at Google. Hassabis, who co-founded DeepMind in 2010 and continued to lead it after Google's 2014 acquisition, has been a key figure behind projects including AlphaGo and AlphaFold and behind the company's broader push in foundation models, AI research and scientific computing.