A10 NETWORKS INC

Ticker: ATEN CUSIP: 002121101 Class: Common Stock

NEXT CENTURY GROWTH INVESTORS LLC's Holding History (CIK: 0001134007)

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

Q1 2014

Shares 644,120 Value ($000) $9,687 Avg Close $13.98 Range $12.70 - $15.43

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	644,120	$9,687	$13.98	$12.70 - $15.43