CenterBook Partners’s A10 Networks ATEN Stock Holding History

CenterBook 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
2025 Q3	–	Sell	-35,717	Closed	-$691K	–	557
2025 Q2	$691K	Buy	35,717 +23,096	+183%	+$395K	0.04%	385
2025 Q1	$206K	Buy	+12,621	New	+$242K	0.01%	463
2023 Q2	–	Sell	-17,193	Closed	-$266K	–	413
2023 Q1	$266K	Buy	+17,193	New	+$262K	0.04%	357

Other funds holding ATEN

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

PCM

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

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

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

BTW

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

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

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

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

CenterBook Partners's ATEN Position: Q3 2025 in Review

CenterBook Partners sold out of A10 Networks (ATEN) in Q3 2025, closing a stake of 35,717 shares — an estimated $691K sold.

CenterBook Partners first reported a position in ATEN in Q1 2023 and held it in 3 quarters. The position peaked at $691K in Q2 2025. 236 funds tracked by Wall St. Rank hold ATEN as of Q3 2025.

CenterBook Partners reported no remaining A10 Networks position as of Q3 2025 after selling out during the quarter.
CenterBook Partners sold 35,717 A10 Networks shares in Q3 2025, an estimated $691K.
CenterBook Partners first reported a position in A10 Networks in Q1 2023 and held it in 3 quarters.
CenterBook Partners's A10 Networks position peaked at $691K in Q2 2025.
236 funds tracked by Wall St. Rank held A10 Networks as of Q3 2025.

Based on CenterBook Partners's 13F filing for Q3 2025, filed 7 Nov 2025.