Anthropic and OpenAI Crack Down on Private Share Trading: What It Means for Pre-IPO Investors in 2026
Introduction Anthropic and OpenAI have both moved aggressively in 2025 to restrict employees and early investors from selling private shares on secondary markets — a shift that could reshape how pre-IPO wealth flows into alternative assets like crypto. According to recent reports, Anthropic has implemented strict transfer restrictions on its equity, while OpenAI has restructured into a for-profit entity with tighter share controls. These crackdowns lock up billions of dollars in paper wealth, forcing investors and employees to rethink liquidity strategies.