Anthropic Has Filed for an IPO. What That Means for Your Existing US Portfolio.
On June 1, 2026, Anthropic — the company behind Claude AI — officially announced that it had confidentially submitted a draft registration statement on Form S-1 to the US Securities and Exchange Commission.
In Anthropic's own words: "This gives us the option to go public after the SEC completes its review. The proposed initial public offering will depend on market conditions and other factors."
In plain language, Anthropic has started the formal IPO process. However, the listing date, offer price and exchange have not been confirmed.
For Malaysian investors already holding US stocks through Rakuten Trade, the bigger question is: what could Anthropic entering the public market mean for the stocks you already own?
What Is Anthropic?
Anthropic was founded in 2021 by Dario and Daniela Amodei with five other former OpenAI researchers.
The company develops large language AI models, which belong to the same category of technology as ChatGPT. Its Claude models are used by enterprises globally for coding, writing and business automation.
Anthropic disclosed in May 2026 that its annualized revenue rate had reached approximately USD 47 billion, up from USD 10 billion in annual revenue last year. Amazon and Google have each committed USD 4 billion as strategic partners.
What Could Happen to Stocks You Already Own
Microsoft (MSFT)
Microsoft holds a significant stake in OpenAI and has positioned Azure cloud around AI. Some investors holding Microsoft partly as an AI proxy may consider rotating into a direct AI lab stock once one becomes available publicly.
Alphabet (GOOGL)
Alphabet holds a strategic investment in Anthropic. Some investors who bought Alphabet partly for this exposure may reduce their positions once a direct Anthropic investment becomes available.
Nvidia (NVDA)
A successful AI lab IPO could validate the broader AI infrastructure thesis. More demand for AI models could translate into greater demand for Nvidia GPUs. Nvidia's revenue reached USD 215.9 billion in FY2026 according to its official SEC filing.
Index Fund Holders
Once Anthropic eventually joins major indices, passive funds tracking those indices would be required to buy its shares automatically, potentially creating structural buying interest after listing.
What Investors Should Know Before the IPO Happens
No IPO date has been confirmed. The public S-1 prospectus, which will contain the offer price, number of shares, exchange and financial details, has not been filed yet.
Anthropic itself said the offering "will depend on market conditions and other factors."
OpenAI is a separate company and represents a different potential IPO event. Its timeline remains unconfirmed and independent of Anthropic's process.
History is also worth keeping in mind. Large and highly anticipated IPOs do not always outperform after listing. The opportunity to invest in Anthropic publicly may be meaningful, but the price paid will matter as much as the quality of the company.
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