A10 NETWORKS INC

Ticker: ATEN CUSIP: 002121101 Class: Common Stock

MUFG Americas Holdings Corp's Holding History (CIK: 0001011659)

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

Q3 2017

Shares 187 Value ($000) $1 Avg Close $6.37 Range $5.63 - $7.90

Q2 2017

Shares 442 Value ($000) $4 Avg Close $7.94 Range $7.25 - $9.12

Q1 2017

Shares 442 Value ($000) $4 Avg Close $8.27 Range $7.16 - $9.30

Q4 2016

Shares 442 Value ($000) $4 Avg Close $8.04 Range $5.94 - $10.16

Q3 2016

Shares 443 Value ($000) $5 Avg Close $8.18 Range $5.93 - $10.17

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	187	$1	$6.37	$5.63 - $7.90
Q2 2017	442	$4	$7.94	$7.25 - $9.12
Q1 2017	442	$4	$8.27	$7.16 - $9.30
Q4 2016	442	$4	$8.04	$5.94 - $10.16
Q3 2016	443	$5	$8.18	$5.93 - $10.17