I can't be 100% percent sure, as they don't give information in the clear, but let's say I'm 99% sure.
Be aware they just made a move, and will likely soon dump almost 30k, if they haven't already by the time you read this. If you happen to spot where they dumped their stash (poloniex? cryptsy? etc.) let me know with a pm!)
The following trading happened at Poloniex, Total traded 29850 coins. So I think the first dump finished.
12/05/2014 07:39 Sell 0.000042 9705.437166 0.40762836
12/05/2014 07:39 Sell 0.00004201 1609.28351 0.067606
12/05/2014 07:39 Sell 0.00004202 4214 0.17707228
12/05/2014 07:39 Sell 0.00004203 14321.27932 0.60192336
They moved out 29850 out of their wallet into an exchange.
Date/Time 2014-05-12 06:49:29
Total Output 29,850.37501 LGC