If I’m not mistaken it is the Silvergate (first bank that go bankrupt) was the original lender for his Bitcoin collateral. But at that time he made a statement that his collateral is not in the bank so they are safe. But after this fist statement and after all this bankrupts I didn’t hear anything also. I wish him all the best. He is the pioneer for companies to go into Bitcoin and if he fails he will be the posterchild of why Bitcoin is bad. Even if the reasons behind his hypothetical failure has nothing to do with Bitcoin itself.