CARBO CERAMICS INC

CUSIP: 140781105 Class: COMMON STOCK

DISCIPLINED GROWTH INVESTORS INC /MN's Holding History (CIK: 0001050442)

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

Q3 2019
Shares 294,075 Value ($000) $706 Avg Close — Range —
Q2 2019
Shares 238,774 Value ($000) $322 Avg Close — Range —
Q1 2019
Shares 238,317 Value ($000) $834 Avg Close — Range —
Q4 2018
Shares 237,122 Value ($000) $825 Avg Close — Range —
Q3 2018
Shares 238,775 Value ($000) $1,731 Avg Close — Range —
Q2 2018
Shares 241,002 Value ($000) $2,210 Avg Close — Range —
Q1 2018
Shares 241,404 Value ($000) $1,750 Avg Close — Range —
Q4 2017
Shares 242,078 Value ($000) $2,464 Avg Close — Range —
Q3 2017
Shares 244,450 Value ($000) $2,110 Avg Close — Range —
Q2 2017
Shares 254,075 Value ($000) $1,740 Avg Close — Range —
Q1 2017
Shares 253,875 Value ($000) $3,311 Avg Close — Range —
Q4 2016
Shares 256,125 Value ($000) $2,679 Avg Close — Range —
Q3 2016
Shares 240,650 Value ($000) $2,633 Avg Close — Range —
Q2 2016
Shares 243,550 Value ($000) $3,191 Avg Close — Range —
Q1 2016
Shares 244,950 Value ($000) $3,478 Avg Close — Range —
Q4 2015
Shares 245,500 Value ($000) $4,223 Avg Close — Range —
Q3 2015
Shares 187,725 Value ($000) $3,565 Avg Close — Range —
Q2 2015
Shares 185,325 Value ($000) $7,715 Avg Close — Range —
Q1 2015
Shares 184,200 Value ($000) $5,620 Avg Close — Range —