It sure feels like a bad look for Satya to announce a huge hire Sunday night and then this? But what do I know.
Edit: don't know why the downvotes. You're welcome to think it's an obviously smart political move. That it's win/win either way. But it's a very fair question that every tech blogger on the planet will be trying to answer for the next month!
Satyas maneuvering gave Sama huge leverage.
Something does still seem not flattering towards Microsoft about reneging on the Microsoft offer though.
(what isn't)
Let's say Sam called his broker and said to him on Friday we'll before the market closes. Buy MSFT stock. Then he made his announcement on Sunday and on Monday he told his broker to sell that stock before he announced he's actually coming back to (not at all)OpenAI. That would be illegal insider trading.
If he never calls his broker/his friends/his mom to buy/sell stock there's nothing illegal.