Anthropic (ANT) Files $3.5 Billion Japan Offering Ahead of Nasdaq IPO

Japan Filing Caps Offering at $3.5 Billion

Japanese retail investors will be able to buy into Anthropic’s Nasdaq debut directly, under a filing the company lodged with the Kanto Local Finance Bureau on November 2. The document, published on EDINET as a securities registration statement, covers a domestic share offering with a preliminary cap of $3.5 billion, about ¥552.9 billion, tied to the company’s planned US initial public offering. The cap is an upper estimate: the actual amount is fixed on the pricing day, and the filing states the final figure could differ substantially from that ceiling. Anthropic, the company behind the Claude AI assistant, first submitted a draft Form S-1 to the U.S. Securities and Exchange Commission (SEC) confidentially on June 1 and filed the full Form S-1 publicly on October 26. The public filing covers Class A common stock destined for the Nasdaq Global Select Market under the ticker ANT, alongside public offerings in six overseas markets: Japan, the United Kingdom, Canada, Australia, Switzerland and parts of the European Economic Area. None of those markets receives a local listing. The filings themselves state no overall IPO size or valuation. The Japan tranche still leaves the essentials blank: the number of shares, a tentative price range and the per-share price are all marked undetermined, and Nasdaq has received the listing application without granting approval yet. On proceeds, the registration statement lists working capital, operating expenses, capital expenditure including compute and infrastructure, and the hiring and retention of senior specialist staff; part of the money may fund acquisitions or investments, though the company states no material agreement exists. Anthropic’s board approved the offering and the local filings on October 23, with pricing planned for a day between November 2026 and April 2027 and the Nasdaq debut set for the following US business day; the filing allows pricing to slip past April 2027.

Lottery Bids Through Six Brokers

Six Japanese brokerages take subscriptions in the domestic tranche: Mizuho Securities, Goldman Sachs Securities, Mitsubishi UFJ Morgan Stanley Securities, Morgan Stanley MUFG Securities, Rakuten Securities and SBI Securities. Mizuho runs the administrative side, and Goldman Sachs Securities, Morgan Stanley MUFG Securities and Mizuho jointly lead the institutional portion. Online retail orders run on a lottery: Mizuho, Rakuten and SBI each state in the filing that drawn bidders are selected from applications, and a drawn investor can waive the allocation until 12:59 Japan time on pricing day. Shares are dollar-denominated with a one-share minimum, and Rakuten also accepts payment in yen at its own rate. There are no Japanese underwriters: Mizuho Securities USA, Goldman Sachs & Co. or MUFG Securities Americas take up the shares in the United States, and the six domestic firms handle subscriptions only, which the filing says does not make them underwriters. Anthropic pays no underwriting fee; the US underwriters earn their income from the difference between the offering price and their purchase price. There is no Japanese listing. Shares settle two business days after the Tokyo pricing day and become tradable from the Nasdaq debut through the brokerage that took the original order. Pricing follows US market conventions rather than a Japanese pre-listing bookbuild, so the tentative range can be adjusted and the final price may land above its top or below its bottom. Some proceeds cover taxes withheld on restricted stock unit vesting, an amount likewise undetermined. If any overseas offering is halted before completion, its shares revert to the United States and other regions without changing the overall size. Directors, officers and shareholders holding nearly all the company’s shares and related securities agreed to a 180-day lockup from pricing day. Reporting around the S-1 has floated a valuation near $1.5 trillion in investor discussions and indicated the company weighed reserving roughly 15% to 20% of shares for retail, with Citi coordinating the overseas retail side. Japanese investors took about $2.2 billion of shares in SpaceX’s June listing.

How the Pre-IPO Market Prices Anthropic

A pre-IPO derivatives market already prices Anthropic’s estimated valuation: Entropy lists an ANTH perpetual contract on Hyperliquid, with the contract conferring no ownership, voting, dividend or IPO allocation rights. COINOTAG data on Anthropic’s pre-IPO instrument shows a last price of $1,718.46, down 1.14% over 24 hours, inside a $1,686.00-$1,749.41 range. The strongest support sits at $1,703.00, scored 100/100 on COINOTAG’s composite, where the lower Bollinger Bands bound converges with the S1 pivot; the nearest resistance is $1,828.97 at 97/100. The daily trend is down and RSI reads 29.8, while positioning stays light with open interest of $77.3 million and a funding rate of 0.0025%. Once ANT starts trading on Nasdaq, its trading volume will give the first direct read on demand that neither filing provides.