A10 NETWORKS INC

Ticker: ATEN CUSIP: 002121101 Class: Common Stock

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q3 2014

Shares 443,560 Value ($000) $4,041 Avg Close $10.68 Range $8.41 - $12.86

Q2 2014

Shares 124,677 Value ($000) $1,658 Avg Close $11.76 Range $9.54 - $14.40

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	443,560	$4,041	$10.68	$8.41 - $12.86
Q2 2014	124,677	$1,658	$11.76	$9.54 - $14.40