Alphabet Shares Climb as Berkshire Hathaway Reveals $4.3 Billion Position

Alphabet stock advanced sharply on Monday after Berkshire Hathaway disclosed a multibillion-dollar investment in the Google parent, signaling one of the conglomerate’s most significant technology moves in recent years.

A required 13F filing with the U.S. Securities and Exchange Commission showed that Berkshire held approximately $4.3 billion worth of Alphabet Class A shares as of 30 September. The position ranks as Berkshire’s tenth-largest equity holding and lifted Alphabet shares 5.5 percent in morning trading, defying mild weakness across several other large-capitalization technology names at the start of the week.

Inside the new holding

Berkshire’s purchase surprised many longtime observers because Warren Buffett has historically displayed caution toward high-growth technology companies. Although Apple occupies the top spot in Berkshire’s portfolio, Buffett has repeatedly classified that investment as a consumer-products play rather than a pure technology bet.

The latest acquisition is widely attributed to investment managers Todd Combs and Ted Weschler, who oversee a growing share of Berkshire’s roughly $300 billion stock portfolio. While neither executive is publicly identified as the buyer, the size of the Alphabet position suggests it likely had Buffett’s approval. The billionaire investor, who is 95, is scheduled to step down as chief executive at the end of the year, though he will remain chairman of the board. Vice-chair Greg Abel is slated to assume day-to-day leadership in January.

Combs and Weschler have previously steered Berkshire toward technology-oriented holdings that deviate from Buffett’s traditional focus. In 2019, the pair initiated a stake in Amazon that is currently valued at about $2.2 billion.

Rationale for the move

Alphabet has been one of 2025’s strongest blue-chip performers, gaining 46 percent year to date. Investor enthusiasm has centered on the company’s artificial-intelligence initiatives and on marked improvements in the profitability of Google Cloud, a segment previously viewed as a drag on margins. Recent financial results showed cloud revenue growth turning into a meaningful contributor to earnings.

Despite the rally, Alphabet’s valuation remains below that of several prominent AI-linked peers. FactSet data place the stock at 25.5 times expected 2026 earnings, compared with Microsoft at 32.0, Nvidia at 41.9 and Broadcom at 50.8. The relative discount, combined with Alphabet’s substantial free cash flow and entrenched position in online advertising and search, may have made the company attractive to Berkshire’s investment team.

Bill Stone, chief investment officer at Glenview Trust Company, said the purchase indicates a potentially broader view of the technology sector as Berkshire prepares for a leadership transition. He noted that expanding the firm’s “circle of competence” could become more common as new decision-makers assume greater influence.

Historical context

Buffett has previously acknowledged that not investing in Google early was a major oversight. Geico, Berkshire’s auto insurance subsidiary, was among Google’s largest advertisers in the early days of paid search, spending about $10 per user click. By witnessing advertiser demand firsthand, Buffett recognized high margins but hesitated because he lacked confidence in predicting the outcome of fast-moving technological competition. The new Alphabet stake partially addresses that earlier miss and demonstrates Berkshire’s willingness to reconsider past assessments.

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Market impact and next steps

The filing date means Berkshire’s purchase occurred sometime during the third quarter, though the exact timing and price are undisclosed. The market reaction suggests investors view Berkshire’s involvement as an endorsement of Alphabet’s long-term prospects, particularly as the company ramps up AI investment while maintaining robust cash generation.

With the addition of Alphabet, technology-related positions now account for an even larger portion of Berkshire’s publicly traded equity portfolio, led by Apple and supported by sizable stakes in Amazon, Hewlett Packard Enterprise, and Snowflake. The shift underscores how Combs and Weschler have diversified Berkshire’s holdings beyond traditional sectors such as banking, consumer staples and insurance.

Analysts will watch the conglomerate’s next quarterly report for insights into whether the Alphabet position has grown or been trimmed since 30 September. They will also look for commentary on how Berkshire weighs opportunities in technology against its historical preference for companies with durable competitive advantages, strong cash flows and understandable business models.

For Alphabet, Berkshire’s endorsement arrives as the company competes aggressively in generative AI, integrates new features into its search engine, and pursues further efficiencies within Google Cloud. Management has pointed to continued spending discipline and select head-count growth to support high-priority initiatives.

While broader market conditions and future regulatory developments remain variables, the combination of a relatively moderate valuation and Berkshire’s backing has given Alphabet additional momentum as year-end approaches.

Crédito da imagem: David A. Grogan | CNBC