Three of the companies most tied to Anthropic’s business will open their own books within days of its IPO paperwork. Anthropic could make its S-1 public as early as Monday , The Information reported Sunday evening, and the Claude maker’s three cloud partners all report quarterly results later in the week.

Microsoft reports after the close Wednesday , and Alphabet holds its call at 4:30 p.m. ET the same day. Amazon follows on Thursday . Reuters has described Google and Amazon as investors, suppliers of computing power and distribution partners, as well as AI competitors.

Nothing was on file yet as of early Sunday evening. Anthropic submitted its draft confidentially on June 1, and an EDGAR search shortly after 6 p.m. ET showed no public Anthropic registration statement. IFR reported this month that the company planned to file publicly on Oct. 26, launch its roadshow Nov. 9 and price the deal the following week, targeting up to $100 billion at a $2 trillion valuation.…