CDW CORPORATION

CUSIP: 12512N105 Class: COM

Makaira Partners LLC's Holding History (CIK: 0001540866)

Note: Option positions (PUT/CALL) are excluded.

Q3 2013
Shares 2,460,229 Value ($000) $56,167 Avg Close — Range —
Q2 2013
Shares 1,764,706 Value ($000) $32,859 Avg Close — Range —