Cornerstone Investment Partners’s A10 Networks ATEN Stock Holding History

Cornerstone Investment Partners’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	$430K	Sell	11,518 -665	-5%	-$19.3K	0.01%	117
2026 Q1	$282K	Buy	+12,183	New	+$238K	0.01%	152
2023 Q3	–	Sell	-10,248	Closed	-$150K	–	203
2023 Q2	$150K	Hold	10,248	–	–	0.01%	189
2023 Q1	$159K	Sell	10,248 -1,552	-13%	-$23.7K	0.01%	179
2022 Q4	$196K	Sell	11,800 -200	-2%	-$3.43K	0.01%	168
2022 Q3	$159K	Hold	12,000	–	–	0.01%	167
2022 Q2	$173K	Hold	12,000	–	–	0.01%	166
2022 Q1	$167K	Hold	12,000	–	–	0.01%	225
2021 Q4	$199K	Buy	+12,000	New	+$182K	0.01%	259
2021 Q1	–	Sell	-21,240	Closed	-$209K	–	273
2020 Q4	$209K	Buy	+21,240	New	+$167K	0.01%	161

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

Cornerstone Investment Partners's ATEN Position: Q2 2026 in Review

Cornerstone Investment Partners reduced its A10 Networks (ATEN) stake by 5.5% in Q2 2026, selling an estimated $19.3K and leaving 11,518 shares worth $430K. The position accounts for 0.01% of the portfolio, ranked #117.

Cornerstone Investment Partners first reported a position in ATEN in Q4 2020 and has held it in 10 quarters since. 310 funds tracked by Wall St. Rank hold ATEN as of Q2 2026.

Cornerstone Investment Partners held 11,518 shares of A10 Networks worth $430K as of Q2 2026.
Cornerstone Investment Partners sold 665 A10 Networks shares in Q2 2026, an estimated $19.3K.
A10 Networks made up 0.01% of Cornerstone Investment Partners's portfolio in Q2 2026, its #117 holding.
Cornerstone Investment Partners first reported a position in A10 Networks in Q4 2020 and has held it in 10 quarters since.
310 funds tracked by Wall St. Rank held A10 Networks as of Q2 2026.

Based on Cornerstone Investment Partners's 13F filing for Q2 2026, filed 7 Aug 2026.