AI company Anthropic plans to sell up to ¥552.9 billion (approximately $3.5 billion) in shares to Japanese investors as part of its upcoming U.S. listing process. According to the filing, proceeds from the new share issuance will be allocated to supplement working capital and cover operating expenses and capital expenditures. The filing did not disclose the size or valuation of the IPO. However, Reuters previously reported that some investors had discussed a potential valuation for Anthropic at approximately $1.5 trillion.