TSMC Votes Up to $1 Billion for Stakes in Anthropic and OpenAI

TSMC has approved investments of up to $1 billion in Anthropic and OpenAI, giving the world's crucial contract chipmaker a potential ownership stake in the AI growth it helps supply. ^[1]

The board authorised up to $500 million for Anthropic common shares at the company's initial public offering price and another $500 million for preferred shares in OpenAI. It separately approved up to $500 million to establish an investment company focused on semiconductors and related businesses. ^[1]

Anthropic's securities filing supplies an important detail: TSMC Partners is among seven companies that agreed to buy a combined $26 billion of non-voting shares in a private placement alongside the planned IPO. The buyers would receive an economic stake without ordinary shareholder voting power. ^[2]

For TSMC, the attraction is straightforward. Its manufacturing business benefits when AI developers need more computing hardware. Ownership could give it another route to profit if those developers become more valuable. It would also expose the chipmaker more directly to the fortunes of particular labs.

The November 10 approvals do not establish that either purchase has closed. The precise operational relationship between TSMC's Anthropic authorisation and TSMC Partners' placement agreement is not explained, and the OpenAI investment's valuation, rights and timing have not been disclosed. Neither document spells out a direct chip-supply arrangement between TSMC and either lab. ^[1][2]

A stake at the IPO price

Anthropic's preliminary prospectus, filed on November 10, estimated an offering price of $70 to $78 a share and said the company had applied to list on Nasdaq under the symbol ANT. Those are preliminary terms and can change. ^[2]

The private placement would use the IPO price, with completion dependent on the public offering and scheduled immediately afterward. TSMC Partners and the six other participating companies would buy Class N common stock, which carries no voting rights except where the law requires them. ^[2]

That gives the proposed investment a specific shape. TSMC would have money riding on Anthropic's success, but these shares would not give it an ordinary vote over the company's direction.

The $26 billion figure belongs to the whole placement, not to TSMC. Its own board authorisation is capped at $500 million. Reading the two documents together places the chipmaker within a much larger financing involving technology and semiconductor companies. ^[1][2]

The proposed OpenAI investment uses a different instrument: preferred stock. TSMC's resolution gives the spending ceiling but no further terms. ^[1] The label alone is not enough to compare the investment's protections or potential returns with the Anthropic shares.

Backing both companies would spread TSMC's exposure across two AI developers. It would not remove the common risk: both investments depend on the commercial value created by AI. Two company names do not necessarily make two independent bets.

The factory budget is still far bigger

TSMC's board approved approximately $40.93 billion in capital appropriations at the same meeting. The money is mainly for advanced manufacturing technology and packaging capacity, factory construction and facility systems, as well as 2027 research and development and sustaining capital expenditure, money spent to keep existing factories and equipment running. ^[1]

That allocation is almost 41 times the combined maximum investment in Anthropic and OpenAI. ^[1]

Advanced packaging, which brings chips and their connections together into usable computing systems, sits alongside chip production in that spending programme. The board's decision therefore reaches across the physical work required to turn semiconductor designs into computing capacity. ^[1]

The separate investment company adds another channel. Its authorised funding of up to $500 million is intended for strategic investments in the semiconductor industry and related ecosystem. ^[1] Unlike the two named lab investments, that vehicle gives TSMC a structure for choosing further targets.

Together, the three approvals authorise up to $1.5 billion for ownership investments and the new investment company. They sit beside a much larger commitment to factories and technology. ^[1] The balance suggests an extension of TSMC's business model, rather than a retreat from making chips.

A broad foundry takes particular bets

TSMC describes its business as the "pure-play foundry" model: it manufactures customers' products rather than concentrating on its own branded chips. In 2025, it manufactured 12,682 products for 534 customers. ^[3]

That breadth matters. A contract manufacturer serves companies with different ambitions and competing products. Its commercial strength rests partly on being useful to many of them, rather than needing one particular customer to win.

Equity stakes add a more selective interest. If one lab's value rises, a supplier that owns its shares can gain beyond whatever manufacturing demand that lab helps generate. If the lab disappoints, the supplier can face an investment loss even while continuing to make chips for the wider market.

Our view is that these investments make TSMC more financially exposed to the AI boom's winners without changing the manufacturing business at its core. That creates a customer-confidence test: ownership must not become a reason for other customers to question how the foundry makes commercial decisions.

When Anthropic sets its final IPO price, investors will be able to calculate how many shares TSMC's $500 million ceiling could buy. At the preliminary range, that is roughly 6.4 million to 7.1 million shares. ^[1][2]