Billionaire investor Stanley Druckenmiller has sold 385,000 Class A shares of Alphabet, valued at approximately $153 million, according to his latest 13F filing. This move follows a significant increase in his Google holdings by 277% in the previous quarter. Druckenmiller's decision to sell comes as Alphabet's stock valuation rose to 28 times forward earnings, a level he believes no longer aligns with his investment strategy. Druckenmiller has expressed skepticism about the current hype surrounding AI, likening it to the early internet era, suggesting a major but uneven transformation. Alphabet, a major player in AI investment, has spent nearly $185 billion in this area, raising concerns about capital deployment. While Wall Street remains optimistic about Alphabet's long-term potential, Druckenmiller's sale serves as a reminder for traders to reassess risk amid high valuations.