A10 NETWORKS INC

Ticker: ATEN CUSIP: 002121101 Class: Common Stock

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q1 2019

Shares 43,132 Value ($000) $306 Avg Close $6.36 Range $5.62 - $6.93

Q4 2018

Shares 65,179 Value ($000) $407 Avg Close $5.66 Range $5.15 - $6.19

Q2 2017

Shares 182,575 Value ($000) $1,541 Avg Close $7.94 Range $7.25 - $9.12

Q1 2017

Shares 140,161 Value ($000) $1,282 Avg Close $8.27 Range $7.16 - $9.30

Q3 2016

Shares 73,624 Value ($000) $787 Avg Close $8.18 Range $5.93 - $10.17

Q2 2016

Shares 96,166 Value ($000) $622 Avg Close $5.91 Range $5.25 - $6.51

Q1 2016

Shares 97,222 Value ($000) $576 Avg Close $5.58 Range $4.53 - $6.22

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	43,132	$306	$6.36	$5.62 - $6.93
Q4 2018	65,179	$407	$5.66	$5.15 - $6.19
Q2 2017	182,575	$1,541	$7.94	$7.25 - $9.12
Q1 2017	140,161	$1,282	$8.27	$7.16 - $9.30
Q3 2016	73,624	$787	$8.18	$5.93 - $10.17
Q2 2016	96,166	$622	$5.91	$5.25 - $6.51
Q1 2016	97,222	$576	$5.58	$4.53 - $6.22