Here is the Tesla press release
tsla-ex991_6.htm
What happens between Aug 21 and Aug 28 is going to be interesting.
Those who hold stock at close of Aug 21 will be given a dividend of 4 shares for every share they hold but that doesn't happen until Aug 28th.
So on Monday Aug 24th does the value of your stock drop to 1/5th? The other 4/5ths you can't sell until after you get them Aug 28th? Or will stock sales contracts between the 21st and 28th be arranged such that they will include the stock dividends?
I don't think this impacts shorts as they will just owe the additional shares and are due upon closing the short position.