Alphabet conducted a stock sale for Google's AI business that raised $85 billion, more than double the company's initial target. The technology giant had set out to sell $40 billion in equity instruments. The offering was oversubscribed.

The structure included two classes of shares and depositary shares. Sundar Pichai, Alphabet's CEO, posted on X on Monday that the offering raised $45 billion from the equity component. The remaining $40 billion came from the other instruments in the sale.

Berkshire Hathaway purchased $10 billion in shares. The conglomerate, known for value investing, made one of the largest single commitments in the offering. Its participation came as Alphabet sought to fund development across Google's AI operations, from Search integration to Android features.

The $85 billion total represents the largest capital raise by a technology company through a stock sale. Alphabet had structured the offering to appeal to institutional investors and international buyers. Depositary shares, which formed part of the package, are instruments typically used to attract cross-border investment.

Pichai's announcement on X confirmed the scale of demand. The oversubscription meant Alphabet could have raised more had it chosen to expand the offering beyond its final size. The company did not disclose how many times over the sale was subscribed.

Berkshire Hathaway's $10 billion stake marks a significant entry into Alphabet's shareholder base. The firm's investment strategy, built on identifying companies with durable competitive advantages, has historically avoided large technology bets outside of Apple. The Alphabet purchase signals a view that Google's AI infrastructure represents long-term value rather than speculative growth.

The capital will flow into Google's AI business, which has integrated machine learning across its product suite. Search results now incorporate generative AI responses. Android devices run on-device AI models for tasks like photo editing and voice transcription.

The company has positioned these capabilities as core to its next decade of revenue growth. Alphabet initially planned the $40 billion raise as sufficient to fund its AI roadmap through the next development cycle. The decision to accept the oversubscription and raise $85 billion suggests the company identified additional opportunities or competitive pressures requiring faster deployment of capital.

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The AI sector has seen intensifying competition from Microsoft, which has embedded OpenAI's technology into its products, and from startups like Anthropic and Mistral. The two classes of shares in the offering likely corresponded to Alphabet's existing Class A and Class C stock structure. Class A shares carry voting rights.

Class C shares do not. This dual structure allows the company's founders to maintain control while raising capital from public markets. Investor demand for the offering came despite Alphabet's existing cash reserves.

The company held $110 billion in cash and marketable securities as of its most recent quarterly report. The decision to raise additional capital through equity rather than debt reflects a preference to avoid interest obligations while funding what the company views as a transformational technology shift. Berkshire Hathaway's involvement adds a stamp of credibility to Alphabet's AI strategy.

Warren Buffett, Berkshire's chairman, has historically expressed skepticism about technology investments he does not understand. The firm's $10 billion commitment suggests its analysts concluded that Google's AI business has measurable economic moats—proprietary data, distribution scale, technical talent—that justify the valuation. The $85 billion raised exceeds the market capitalization of most publicly traded companies.

It positions Alphabet to accelerate hiring of AI researchers, expand data center infrastructure, and potentially acquire smaller AI firms with specialized capabilities. The company has not disclosed a specific allocation plan for the funds. Pichai has led Alphabet since 2015, first as Google's CEO and then as head of the parent company.

Under his leadership, the company reorganized its AI research teams and made generative AI a priority across all product lines. His announcement of the $45 billion equity component on X came without additional detail on deployment timelines or strategic priorities. The stock sale's oversubscription indicates institutional investors view AI infrastructure as a category likely to generate returns over multi-year horizons.

Alphabet's ability to command this level of capital reflects its existing market position and the perception that its AI capabilities are defensible against competitors. The company's search engine processes billions of queries daily, providing a data advantage that newer entrants cannot replicate. Depositary shares in the offering would have allowed non-U.

S. investors to participate without navigating direct ownership of American equities. This structure broadens the investor base and can reduce volatility by distributing shares across geographies with different market cycles. The $85 billion total sets a benchmark for technology capital raises.

Previous large offerings in the sector have typically ranged from $20 billion to $30 billion. Alphabet's ability to more than double that range demonstrates both the scale of opportunity the market perceives in AI and the company's credibility in executing on technical roadmaps. Berkshire Hathaway's $10 billion stake now makes it one of Alphabet's significant shareholders, a position that will give the conglomerate influence in how the AI funds are deployed.