Anthropic IPO: Up to $3.5 Billion Sought From Japanese Investors, Filing Shows
Anthropic plans to raise up to $3.5 billion (¥552.9 billion) from investors in Japan as part of its Nasdaq IPO, a Tokyo filing on 2 November showed — the largest-ever Japanese IPO offering by a foreign company.
Anthropic plans to raise up to $3.5 billion (about ¥552.9 billion) from investors in Japan as part of its initial public offering, according to a securities registration statement filed in Tokyo on Monday, 2 November. The Japanese tranche alone would be the largest IPO fundraising ever by a foreign company in Japan — and it underlines how central retail and institutional demand in Asia has become to the AI listing race.
Highlights
- Japan ceiling: Up to $3.5 billion (¥552.9 billion) of shares to be offered in Japan, per the filing with the Kanto Local Finance Bureau on 2 November.
- Record scale: About 60% more than the $2.2 billion Japanese investors bought in SpaceX’s June IPO, and the largest-ever Japanese IPO offering by a foreign company.
- Who sells it: Mizuho Securities handles domestic sales; orders also via Goldman Sachs Japan, Mitsubishi UFJ Morgan Stanley Securities, Morgan Stanley MUFG Securities, Rakuten Securities and SBI Securities.
- Use of proceeds: Working capital, operating expenses and capital expenditure, per the filing.
- Not yet set: The filing gives no total IPO size, share count, price or valuation; the shares are the same Nasdaq stock (ticker ANT), with no separate Tokyo listing.
What the filing actually says
Nikkei Asia reported on Monday that Anthropic “plans to raise up to $3.5 billion in Japan as part of its initial public offering, potentially surpassing by about 60% the amount U.S.-based SpaceX raised in the country in June,” and that this “would mark the largest-ever IPO fundraising by a foreign company in Japan” Nikkei Asia reported on 2 November. The Business Times, reporting the same filing, said Anthropic “will sell up to US$3.5 billion worth of shares in Japan, a filing showed on Monday (Nov 2),” with the new shares funding working capital, operating expenses and capital expenditure The Business Times reported on 2 November.
Two cautions belong with the headline number. First, $3.5 billion is a ceiling, not a committed amount: the final sum will be set at pricing and could differ significantly, and at filing the number of shares and the offer price were still undecided as summarised from the Reuters report of the filing on 2 November. Second, Japanese buyers are not getting a separate listing — Anthropic does not plan to list outside the US, so investors in Japan will hold the same Nasdaq shares under the ticker ANT, bought through Japanese brokers. This is the international leg of the offering first set out in Anthropic’s S-1 filing for a Nasdaq listing under the ticker ANT, which said the IPO includes public offerings in Australia, Canada, Japan, Switzerland, the UK and parts of the European Economic Area.
Why Japan, and why so big
The comparison that explains the strategy is SpaceX. Japanese investors bought about $2.2 billion of shares in SpaceX’s June IPO, which raised $75 billion in total and was the world’s largest ever The Business Times reported, citing Reuters. Anthropic’s Japanese ceiling is roughly 1.6 times that figure. Set against Japan’s own market, the scale is starker: total IPO share offerings in Japan amounted to roughly ¥200 billion (about $1.27 billion) in the April–September period, according to research firm I-N Information Systems — so Anthropic’s Japanese tranche could be nearly three times everything Japan’s domestic IPO market raised in six months Nikkei Asia reported.
The distribution list also points at retail demand, not just institutions. Alongside Mizuho Securities, which coordinates the Japanese sale, orders can be placed through Goldman Sachs Japan, Mitsubishi UFJ Morgan Stanley Securities, Morgan Stanley MUFG Securities and the country’s two big online brokers, Rakuten Securities and SBI Securities, according to the filing Nikkei Asia reported. Mizuho Financial Group and Mitsubishi UFJ Financial Group are among the deal’s underwriters The Business Times reported. The pattern matches the wider AI funding market, where the largest rounds are now assembled across continents — the same week has seen Kling AI raise $2.98 billion in a Kuaishou-led round while OpenAI cut its funding target to $20 billion as valuation expectations cooled.
What is still unknown
Neither the Japanese filing nor the US S-1 yet states the total size of the IPO or Anthropic’s valuation. Nikkei expects the company to raise around $100 billion in total on Nasdaq Nikkei Asia reported, and Reuters has reported that some investors have discussed a valuation of about $1.5 trillion — a discussion figure, not a term in any filing The Business Times reported. Anthropic filed an amended S-1 on Monday carrying its third-quarter results, but no price range has been set. Bloomberg has reported that Anthropic is considering setting aside 15% to 20% of the IPO’s shares for retail investors, with JPMorgan leading US retail sales and Citigroup coordinating retail elsewhere — a plan that would fit the broad Japanese broker list, though Anthropic has not confirmed it in the filing.
What to watch next
The next hard facts will come from pricing: the final Japanese amount against the $3.5 billion ceiling, the overall deal size against Nikkei’s roughly $100 billion expectation, and the valuation the market actually accepts. Until then, the verified story is the filing itself — a foreign AI company asking Japanese investors for more money than Japan’s entire recent domestic IPO market, through six brokers including the two largest online platforms. If demand in Tokyo holds at anything near the ceiling, it will say as much about where AI capital now lives as it does about Anthropic. This article reports the filing as attributed above and is not investment advice.
