How long have the SpaceX, OpenAI and Anthropic investors been waiting for an IPO (excluding tender offers)? 24 years, 10 years, and 5 years.

You really think they are going to hold off against selling for multi-millions for another year, especially SpaceX?

OpenAI (and especially) Anthropic are at risk from being undercut by the Chinese labs and their open-weight models and may cause their valuations to be questioned.

If that doesn't cause a correction, then SpaceX will do it for them. There is no lock up for the 5% of shares being available.