Google spent $2.7 billion to bring Noam Shazeer back into the fold. Less than two years later, he walked out the door to join OpenAI. Alphabet investors, understandably, were not thrilled.
Shazeer’s departure on June 18 was just the opening act. The very next day, John Jumper, a 2024 Nobel laureate celebrated for his groundbreaking work on AlphaFold, announced he was leaving DeepMind to join Anthropic after nearly nine years at the company. Two marquee exits in 48 hours. By the time markets opened on June 22, Alphabet shares had plummeted as much as 7% intraday, marking the stock’s steepest single-day decline in over a year and vaporizing an estimated $270 billion in market capitalization.
The talent exodus deepens
Shazeer wasn’t just any researcher. He was the co-lead of Google’s Gemini project, the flagship large language model effort that Alphabet has positioned as its answer to OpenAI’s GPT series and Anthropic’s Claude. His original return to Google came via an acqui-hire deal valued at approximately $2.7 billion.
Jumper’s exit carries a different but equally painful sting. His Nobel Prize-winning protein structure prediction work with AlphaFold represented one of DeepMind’s most celebrated scientific achievements. Losing him to Anthropic, a company founded by former OpenAI executives and now one of Google’s fiercest competitors, sends a signal that even world-class recognition and institutional prestige aren’t enough to keep top minds in place.
The bleeding didn’t stop there. Shortly after Shazeer and Jumper made their moves, two more key Gemini contributors, Jonas Adler and Alexander Pritzel, also departed for Anthropic. Four high-profile exits in rapid succession from the same division.
What this means for investors
For context, a 7% single-day drop for a company of Alphabet’s size is significant. This isn’t a speculative meme stock getting hammered by a Reddit thread. This is one of the largest companies on Earth losing nearly $270 billion in value because investors recalculated the odds of Google maintaining its AI leadership position.
Alphabet’s response will be the key variable to watch. The company still has enormous advantages: a massive data moat, vertically integrated infrastructure through Google Cloud, and billions of users across its product ecosystem that provide natural distribution for AI features.
Investors holding Alphabet should monitor whether Google announces any structural changes to its DeepMind compensation, governance, or research autonomy in the coming weeks.