October Effect’s A10 Networks ATEN Stock Holding History

October Effect’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	–	Sell	-100,437	Closed	-$1.78M	–	66
2025 Q4	$1.78M	Sell	100,437 -53,053	-35%	-$940K	1.96%	19
2025 Q3	$2.79M	Buy	+153,490	New	+$2.78M	3.07%	7

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 $13.1B AUM 24.63% 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

October Effect's ATEN Position: Q1 2026 in Review

October Effect sold out of A10 Networks (ATEN) in Q1 2026, closing a stake of 100,437 shares — an estimated $1.78M sold.

October Effect first reported a position in ATEN in Q3 2025 and held it in 2 quarters. The position peaked at $2.79M in Q3 2025. 264 funds tracked by Wall St. Rank hold ATEN as of Q1 2026.

October Effect reported no remaining A10 Networks position as of Q1 2026 after selling out during the quarter.
October Effect sold 100,437 A10 Networks shares in Q1 2026, an estimated $1.78M.
October Effect first reported a position in A10 Networks in Q3 2025 and held it in 2 quarters.
October Effect's A10 Networks position peaked at $2.79M in Q3 2025.
264 funds tracked by Wall St. Rank held A10 Networks as of Q1 2026.

Based on October Effect's 13F filing for Q1 2026, filed 21 Apr 2026.