INVESTMENT TECHNOLOGY GRP NE

CUSIP: 46145F105 Class: COMMON STOCK

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

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

Q4 2014
Shares 159,220 Value ($000) $3,315 Avg Close — Range —
Q3 2014
Shares 169,695 Value ($000) $2,674 Avg Close — Range —
Q2 2014
Shares 170,345 Value ($000) $2,875 Avg Close — Range —
Q1 2014
Shares 202,920 Value ($000) $4,099 Avg Close — Range —
Q4 2013
Shares 209,545 Value ($000) $4,308 Avg Close — Range —
Q3 2013
Shares 222,895 Value ($000) $3,504 Avg Close — Range —
Q2 2013
Shares 224,420 Value ($000) $3,137 Avg Close — Range —