I think he did more than that. He either has precognition Nostradamus would be proud of or he absolutely had insider information, and a good amount of it.
1. He knew that when the bank closure would be, because despite how the FDIC has very detailed and historically very successful efforts at keeping such plans highly confidential (for obvious reasons), like agents in hotels under fake names, etc., he told his investments on Wednesday night that "all funds must be out of SVB by COB Thursday". FDIC rolled into SVB 8am Friday morning.
2. He had also had instructed another of his companies to build a website and app that was able to handle applications for business bridge loans, and it "needed to be tested, and ready to go live, by noon on Friday".
Also, not for nothing, causing a bank run is a federal felony.