GIGAMON INC

CUSIP: 37518B102 Class: COM

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

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

Q3 2017
Shares 49,750 Value ($000) $2,096 Avg Close — Range —
Q2 2017
Shares 50,100 Value ($000) $1,971 Avg Close — Range —
Q1 2017
Shares 50,100 Value ($000) $1,781 Avg Close — Range —
Q4 2016
Shares 42,100 Value ($000) $1,917 Avg Close — Range —
Q3 2016
Shares 43,100 Value ($000) $2,361 Avg Close — Range —
Q2 2016
Shares 59,600 Value ($000) $2,228 Avg Close — Range —
Q1 2016
Shares 61,723 Value ($000) $1,914 Avg Close — Range —
Q4 2015
Shares 61,723 Value ($000) $1,639 Avg Close — Range —
Q3 2015
Shares 62,100 Value ($000) $1,242 Avg Close — Range —
Q2 2015
Shares 62,100 Value ($000) $2,048 Avg Close — Range —
Q1 2015
Shares 62,200 Value ($000) $1,321 Avg Close — Range —
Q4 2014
Shares 64,700 Value ($000) $1,147 Avg Close — Range —
Q3 2014
Shares 64,700 Value ($000) $677 Avg Close — Range —
Q2 2014
Shares 31,600 Value ($000) $604 Avg Close — Range —