wasn't 777 some illuminati symbol?
I am sure we will be able to compose a full list of those 0.00777 transactions containing cold storage wallets.
Many of those will NOT be MtGox wallets as 777 is like 666 a heavily used number, not just by the illuminati, but also by satanists and master trolls
The 777 transactions were an attempt by people to follow Bitcoin transactions related to a recent Silk Road theft (SR admins claim that all of their BTC were stolen by someone exploiting the malleability issue). They used 777 because 666 had already been used previously to try to follow BTC from another theft (sheep marketplace, IIRC).
There are threads on the SR forums about the 777 tag and on reddit about the 666 tag.