What happened to 15,625 shares you did exercise? I guess they are worth over $1.5 billion as of today?
I imagine he sold all of it by now
If he's arguing that he could effectively revoke his past final decision to sell it all at not-billions by demanding withdrawal of hypothetical now-billions from NVIDIA, I wouldn't be sure what system will happily grant him that...
He's saying they didn't actually get exercised as-in stock was never made his. They took the money and didn't issue him the shares, but the statue of limitations is gone on the fraud.
I would venture the fate of the bygone shares would be the same as those 15,625. Sold early. Paperhands (aren't most of us?).