GSI GROUP INC CDA NEW

CUSIP: 36191C205 Class: CMN

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2015
Shares 11,250 Value ($000) $153 Avg Close — Range —
Q3 2015
Shares 11,215 Value ($000) $143 Avg Close — Range —
Q2 2015
Shares 15,055 Value ($000) $226 Avg Close — Range —
Q1 2015
Shares 10,302 Value ($000) $137 Avg Close — Range —
Q1 2014
Shares 27,508 Value ($000) $359 Avg Close — Range —
Q4 2013
Shares 34,914 Value ($000) $392 Avg Close — Range —
Q3 2013
Shares 17,617 Value ($000) $168 Avg Close — Range —