CORE MARK HOLDING CO INC

CUSIP: 218681104 Class: COMMON STOCK

VAN DEN BERG MANAGEMENT I, INC's Holding History (CIK: 0001142062)

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

Q1 2014
Shares 310,593 Value ($000) $22,549 Avg Close — Range —
Q4 2013
Shares 355,143 Value ($000) $26,966 Avg Close — Range —
Q3 2013
Shares 373,488 Value ($000) $24,815 Avg Close — Range —
Q2 2013
Shares 379,040 Value ($000) $24,069 Avg Close — Range —