CARBO CERAMICS INC

CUSIP: 140781105 Class: COMMON STOCK

MARKEL GROUP INC.'s Holding History (CIK: 0001096343)

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

Q2 2016
Shares 215,000 Value ($000) $2,816 Avg Close — Range —
Q1 2016
Shares 215,000 Value ($000) $3,053 Avg Close — Range —
Q4 2015
Shares 215,000 Value ($000) $3,698 Avg Close — Range —
Q3 2015
Shares 215,000 Value ($000) $4,083 Avg Close — Range —
Q2 2015
Shares 215,000 Value ($000) $8,950 Avg Close — Range —
Q1 2015
Shares 200,000 Value ($000) $6,102 Avg Close — Range —
Q4 2014
Shares 61,000 Value ($000) $2,443 Avg Close — Range —
Q3 2013
Shares 236,000 Value ($000) $23,390 Avg Close — Range —
Q2 2013
Shares 218,000 Value ($000) $14,700 Avg Close — Range —