Did you miss the second claim window as well? We got the trustee to change the bankruptcy format, and it reopened the claim window until I think November. Did you not get any emails about the claims?

Everything I used to buy the BTC was anonymized (cash deposit, throwaway email address). I have all my MtGox login information but can't access the email address I used to verify anything. Any way I can still file a claim?

I think you're too late, but you can make an account here and ask: forum.mtgoxlegal.com

It's a forum organized by creditors who together pay for a lawyer and an activist to represent us in the bankruptcy.

But it was trading at around $600 during the MtGox meltdown. Are you thinking of the first MtGox crash (June 2011) that they recovered from?

I think he means he bought them when they where $30, so he would have made some nice gains.

Tinco is correct, I bought before the MtGox crash at around $30 but used them as my exchange to do the trade, and never pulled them into a wallet.