The official line, in the legal documents filing for bankruptcy, says nothing about how many coins they have left, only how many they lost.
Yes, and they cannot discuss the "losing" details, I would guess due to other control vectors. Because, if you get mugged, you can give an account of it "He came up behind me!" or "He told me the money was to buy a chicken farm!"
But in this case the answer is "stolen and we can't say more than that." Because lawyers.