GSI GROUP INC

CUSIP: 36191c205 Class: COM

CORBYN INVESTMENT MANAGEMENT INC/MD's Holding History (CIK: 0000919538)

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

Q1 2016
Shares 1,145,815 Value ($000) $16,225 Avg Close — Range —
Q4 2015
Shares 1,235,176 Value ($000) $16,823 Avg Close — Range —
Q3 2015
Shares 1,249,751 Value ($000) $15,909 Avg Close — Range —
Q2 2015
Shares 1,254,601 Value ($000) $18,857 Avg Close — Range —
Q1 2015
Shares 1,381,717 Value ($000) $18,404 Avg Close — Range —
Q4 2014
Shares 1,382,967 Value ($000) $20,357 Avg Close — Range —
Q3 2014
Shares 1,389,517 Value ($000) $15,966 Avg Close — Range —
Q2 2014
Shares 1,395,001 Value ($000) $17,758 Avg Close — Range —
Q1 2014
Shares 1,402,401 Value ($000) $18,315 Avg Close — Range —
Q4 2013
Shares 1,406,326 Value ($000) $15,807 Avg Close — Range —
Q3 2013
Shares 1,422,800 Value ($000) $13,574 Avg Close — Range —
Q2 2013
Shares 1,418,956 Value ($000) $11,408 Avg Close — Range —