Anthropic PBC is seeking to go public as soon as the middle of November, according to people familiar with the matter, after the artificial intelligence model maker pushed back plans to list.The firm behind Claude could start formal marketing for its IPO as soon as the week of Nov. 9, putting it in line to begin trading before Thanksgiving, the people said. Dealmaking typically grinds to a halt in the days around the holiday, which is on Nov. 26....