Impax Asset Management Group’s A10 Networks ATEN Stock Holding History

Impax Asset Management Group’s Portfolio ATEN Stock Details ATEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$15.3M	Sell	410,000 -60,000	-13%	-$1.74M	0.1%	134
2026 Q1	$10.9M	Buy	470,000 +110,000	+31%	+$2.15M	0.08%	146
2025 Q4	$6.37M	Hold	360,000	–	–	0.04%	191
2025 Q3	$6.53M	Hold	360,000	–	–	0.04%	178
2025 Q2	$6.97M	Hold	360,000	–	–	0.04%	179
2025 Q1	$5.88M	Sell	360,000 -227,500	-39%	-$4.37M	0.04%	188
2024 Q4	$10.8M	Sell	587,500 -100,000	-15%	-$1.63M	0.05%	155
2024 Q3	$9.93M	Buy	687,500 +137,500	+25%	+$1.85M	0.04%	165
2024 Q2	$7.62M	Sell	550,000 -225,000	-29%	-$3.21M	0.03%	182
2024 Q1	$10.6M	Hold	775,000	–	–	0.04%	162
2023 Q4	$10.2M	Buy	775,000 +125,000	+19%	+$1.52M	0.04%	174
2023 Q3	$9.77M	Buy	650,000 +225,000	+53%	+$3.33M	0.04%	161
2023 Q2	$6.2M	Sell	425,000 -590,000	-58%	-$8.54M	0.02%	194
2023 Q1	$15.7M	Buy	1,015,000 +200,000	+25%	+$3.05M	0.07%	131
2022 Q4	$13.6M	Sell	815,000 -185,000	-19%	-$3.17M	0.06%	134
2022 Q3	$13.3M	Buy	1,000,000 +375,000	+60%	+$5.34M	0.07%	134
2022 Q2	$8.99M	Buy	625,000 +375,000	+150%	+$5.43M	0.04%	155
2022 Q1	$3.49M	Buy	+250,000	New	+$3.51M	0.01%	212

Other funds holding ATEN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

PCM

Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return

BTW

Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Impax Asset Management Group's ATEN Position: Q2 2026 in Review

Impax Asset Management Group reduced its A10 Networks (ATEN) stake by 13% in Q2 2026, selling an estimated $1.74M and leaving 410,000 shares worth $15.3M. The position accounts for 0.1% of the portfolio, ranked #134.

Impax Asset Management Group first reported a position in ATEN in Q1 2022 and has held it in 18 quarters since. The position peaked at $15.7M in Q1 2023. 311 funds tracked by Wall St. Rank hold ATEN as of Q2 2026.

Impax Asset Management Group held 410,000 shares of A10 Networks worth $15.3M as of Q2 2026.
Impax Asset Management Group sold 60,000 A10 Networks shares in Q2 2026, an estimated $1.74M.
A10 Networks made up 0.1% of Impax Asset Management Group's portfolio in Q2 2026, its #134 holding.
Impax Asset Management Group first reported a position in A10 Networks in Q1 2022 and has held it in 18 quarters since.
Impax Asset Management Group's A10 Networks position peaked at $15.7M in Q1 2023.
311 funds tracked by Wall St. Rank held A10 Networks as of Q2 2026.

Based on Impax Asset Management Group's 13F filing for Q2 2026, filed 11 Aug 2026.