If you were in his position (well known, large amounts of money) and everyone had some 3 letter agency (IRS, FBI, and SEC) after them would you cover all of your bases in a similar manner? Bitcoinland isn't the same as it used to be, this isn't free for all anonymous fest anymore.
So I vote No.
But I also say that's really shitty maaaannnnn.
I'm sure he could have set up a third party to proxy all the shareholders who couldn't submit that info if he wanted to but the greed of keeping more of his asset for free which was paid for by investors kicked in. The third party could even list all those shares on -
https://btct.co