GIGAMON INC

CUSIP: 37518B102 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q3 2015
Shares 222,075 Value ($000) $4,444 Avg Close — Range —
Q2 2015
Shares 291,675 Value ($000) $9,622 Avg Close — Range —
Q1 2015
Shares 320,675 Value ($000) $6,811 Avg Close — Range —