Anthropic is seeking to raise $3 billion to $3.5 billion from Japanese investors as part of its IPO roadshow, according to a filing with Japan's Ministry of Finance. The AI company plans to sell 38.5 million to 50 million shares at a reference price range of $70 to $78 per share. Based on the filing submitted Tuesday, Anthropic carries an estimated valuation of approximately $1 trillion on outstanding shares and about $1.4 trillion on a fully diluted basis. The company intends to sell up to $64.4 billion worth of shares in total under its disclosed IPO plan. The Japanese offering is structured as an "unlisted public offering" targeting households with significant domestic capital. Mizuho Financial Group serves as coordinator for the deal.