Alphabet shares fell to a session low, down 5.4%, following reports of a major executive shakeup and high-profile talent departures at the tech giant. Joining Dean as co-founders are fellow Google AI veterans Oriol Vinyals, Quoc Le, and Sanjay Ghemawat. Google and Alphabet CEO Sundar Pichai and Google DeepMind lead Demis Hassabis outlined several strategic leadership transitions aimed at sharpening the company's focus on the AGI frontier and frontier model development. Koray Kavukcuoglu, GDM's Chief Technology Officer and Chief AI Architect, has been promoted to Senior Vice President of Google DeepMind, reporting directly to Pichai. Kavukcuoglu, a 13-year DeepMind veteran who led early breakthroughs such as WaveNet and DQN, will now oversee Gemini model development, frontier research, and developer teams.