5 of those lost Bitcoins are mine. I had received 5 coins years ago when they were worth $0.02 each. After about 10 months of watching them, I lost interest and forgot about them.
I remembered them last fall when Bitcoin skyrocketed. I had moved twice since I'd received them. And in the last month sold almost all of my possessions so I could travel easily. I was able to find the encrypted wallet file on my old laptop, but none of the other information necessary to access it. Alas, I still haven't given up hope totally.