CARBO CERAMICS INC

CUSIP: 140781105 Class: COMMON STOCK

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2014
Shares 9,300 Value ($000) $372 Avg Close — Range —
Q3 2014
Shares 9,300 Value ($000) $551 Avg Close — Range —
Q2 2014
Shares 9,400 Value ($000) $1,449 Avg Close — Range —
Q1 2014
Shares 9,400 Value ($000) $1,297 Avg Close — Range —
Q4 2013
Shares 9,300 Value ($000) $1,084 Avg Close — Range —
Q3 2013
Shares 9,200 Value ($000) $912 Avg Close — Range —
Q2 2013
Shares 9,000 Value ($000) $607 Avg Close — Range —