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 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 $5.72T AUM 30.48% 1-Year Est. Return

PCM

Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

BTW

Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Impax Asset Management Group's ATEN Position: Q1 2026 in Review

Impax Asset Management Group increased its A10 Networks (ATEN) stake by 31% in Q1 2026, buying an estimated $2.15M and bringing the position to 470,000 shares worth $10.9M. The position accounts for 0.08% of the portfolio, ranked #146.

Impax Asset Management Group first reported a position in ATEN in Q1 2022 and has held it in 17 quarters since. The position peaked at $15.7M in Q1 2023. 264 funds tracked by Wall St. Rank hold ATEN as of Q1 2026.

Impax Asset Management Group held 470,000 shares of A10 Networks worth $10.9M as of Q1 2026.
Impax Asset Management Group bought 110,000 A10 Networks shares in Q1 2026, an estimated $2.15M.
A10 Networks made up 0.08% of Impax Asset Management Group's portfolio in Q1 2026, its #146 holding.
Impax Asset Management Group first reported a position in A10 Networks in Q1 2022 and has held it in 17 quarters since.
Impax Asset Management Group's A10 Networks position peaked at $15.7M in Q1 2023.
264 funds tracked by Wall St. Rank held A10 Networks as of Q1 2026.

Based on Impax Asset Management Group's 13F filing for Q1 2026, filed 12 May 2026.