X0306 4 2013-02-14 0 0001056923 DATALINK CORP DTLK 0001561932 Leslie James D 10050 CROSSTOWN CIRCLE SUITE 500 EDEN PRAIRIE MN 55344 0 1 0 0 EVP, Strategy & Business Devel Common Stock 2013-02-20 4 S 0 40000 10.2322 D 63400 D Common Stock 2013-02-21 4 S 0 10000 10.07 D 53400 D Common Stock 2013-02-14 4 J 0 18450 8.92 D 34950 D Vesting based upon 2012 Non-GAAP Operating Income objectives that were not met. /s/ Denise Westenfield, Attorney-in-Fact 2013-02-21