Berkshire Adds $10B to Alphabet Stake While Google Backs €411M Fusion Startup
GOOG•Berkshire Hathaway acquired $10B of Alphabet shares over the past year as its stock surged 100% since Q3 2025. Alphabet co-led a €411M funding round with RWE for Proxima Fusion’s bid to develop Europe’s first commercial fusion power plant.
1. Berkshire Increases Alphabet Stake
Berkshire Hathaway, led by Greg Abel, has increased its position in Alphabet by acquiring roughly $10B of shares over the past year, including a private placement that reinforced its long-term commitment.
2. Stock Performance Surge
Alphabet’s shares have climbed approximately 100% since Q3 2025, driven by robust growth in digital advertising revenue, expanding cloud services and accelerated integration of artificial intelligence across its product suite.
3. Google Co-leads €411M Fusion Round
Alphabet joined energy firm RWE in co-leading a €411M financing round for Proxima Fusion, which aims to develop Europe’s first commercial nuclear fusion power plant and advance clean energy innovation.
