If it were that easy, Tesla could do the same. It is not that easy. While you or any other spiv can buy a collar on $10k or even $1m worth of stock for a super short period (1 month, 3 month), it is an entirely different thing to:
- But options for multi-year expiries (because that is how long the disposal will take, after the obligatory lockup)...
- ... in a stock that is 1000x less liquid that your usual AAPL or GOOG...
- ...on a short notice on $325 million worth of stock, i.e. a huge percentage of the free float of the stock, making it impossible to hedge for any bank that offers the collar.
tldr: You are a bit too cocky given your lack of knowledge.