Acadian Asset Management’s A10 Networks ATEN Stock Holding History

Acadian Asset Management’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	$17M	Buy	+455,769	New	+$13.2M	0.02%	458
2025 Q2	–	Sell	-47,313	Closed	-$771K	–	1655
2025 Q1	$771K	Buy	+47,313	New	+$909K	﹤0.01%	989
2024 Q4	–	Sell	-1,498	Closed	-$21K	–	1635
2024 Q3	$21K	Buy	+1,498	New	+$20.2K	﹤0.01%	1971
2023 Q2	–	Sell	-914	Closed	-$14K	–	1721
2023 Q1	$14K	Buy	+914	New	+$13.9K	﹤0.01%	1674
2022 Q4	–	Sell	-19,850	Closed	-$263K	–	1768
2022 Q3	$263K	Sell	19,850 -145,803	-88%	-$2.07M	﹤0.01%	1147
2022 Q2	$2.38M	Sell	165,653 -38,804	-19%	-$562K	0.01%	588
2022 Q1	$2.85M	Buy	204,457 +72,050	+54%	+$1.01M	0.01%	583
2021 Q4	$2.19M	Buy	+132,407	New	+$2.01M	0.01%	640
2018 Q1	–	Sell	-19,015	Closed	-$147K	–	1674
2017 Q4	$147K	Buy	+19,015	New	+$145K	﹤0.01%	1016
2017 Q3	–	Sell	-376,139	Closed	-$3.17M	–	1399
2017 Q2	$3.17M	Sell	376,139 -574,726	-60%	-$4.88M	0.01%	477
2017 Q1	$8.7M	Buy	950,865 +197,699	+26%	+$1.75M	0.04%	316
2016 Q4	$6.26M	Buy	753,166 +651,645	+642%	+$5.6M	0.03%	368
2016 Q3	$1.08M	Buy	101,521 +429	+0.4%	+$3.75K	0.01%	658
2016 Q2	$654K	Buy	+101,092	New	+$639K	﹤0.01%	715
2016 Q1	–	Sell	-6,622	Closed	-$43K	–	1362
2015 Q4	$43K	Buy	+6,622	New	+$45.9K	﹤0.01%	1130

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

Acadian Asset Management's ATEN Position: Q2 2026 in Review

Acadian Asset Management opened a new position in A10 Networks (ATEN) in Q2 2026: 455,769 shares worth $17M. The stake represents 0.02% of the portfolio and ranks #458 among its holdings. This is a return to the name: Acadian Asset Management previously reported a position in ATEN as recently as Q1 2025.

Acadian Asset Management first reported a position in ATEN in Q4 2015 and has held it in 15 quarters since. 311 funds tracked by Wall St. Rank hold ATEN as of Q2 2026.

Acadian Asset Management held 455,769 shares of A10 Networks worth $17M as of Q2 2026.
A10 Networks was a new Acadian Asset Management position in Q2 2026.
A10 Networks made up 0.02% of Acadian Asset Management's portfolio in Q2 2026, its #458 holding.
Acadian Asset Management first reported a position in A10 Networks in Q4 2015 and has held it in 15 quarters since.
311 funds tracked by Wall St. Rank held A10 Networks as of Q2 2026.

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