GSI GROUP INC CDA NEW

CUSIP: 36191C20 Class: COM NEW

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q1 2016
Shares 65,850 Value ($000) $932 Avg Close — Range —
Q4 2015
Shares 60,810 Value ($000) $828 Avg Close — Range —
Q3 2015
Shares 58,968 Value ($000) $886 Avg Close — Range —
Q2 2015
Shares 58,968 Value ($000) $886 Avg Close — Range —
Q1 2015
Shares 123,028 Value ($000) $1,639 Avg Close — Range —
Q4 2014
Shares 149,813 Value ($000) $2,205 Avg Close — Range —
Q3 2014
Shares 165,327 Value ($000) $1,900 Avg Close — Range —
Q2 2014
Shares 230,960 Value ($000) $2,940 Avg Close — Range —
Q1 2014
Shares 213,865 Value ($000) $2,793 Avg Close — Range —
Q4 2013
Shares 169,102 Value ($000) $1,901 Avg Close — Range —