Looks like some old miner swept up 20 of their old bit coins to distribute to some close friends, or pay off a mining pool payout. Blockchain.info has no information in ownership or mining claim.
The reason I posted this, however, is to look at the mind numbing appreciation of the value of bitcoin over the past 4 years. A mere $250 of mined coin from over four years ago is worth over a half a million dollars today. Yowza.
If you want to play around with this yourself you can download the 1.1 release of my "Follow the Bitcoin" toy at Github.