Anthropic logo is seen in this illustration taken June 11, 2026. REUTERS/Dado Ruvic/Illustration/File Photo Purchase Licensing Rights, opens new tabCompaniesSept 4 - Anthropic is expected to begin marketing its initial public offering in mid-October at the earliest and complete the listing days before the U.S. midterm elections in November, ​people familiar with the matter said on Friday.The artificial intelligence company had ‌been expected to make its IPO prospectus public as early as next wee...