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Weiss Asset Management’s A10 Networks ATEN Stock Holding History

Weiss 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
Q1 		$500K Buy
+21,630
New +$423K 0.01% 399
2025
Q4 		– Sell
-23,952
Closed -$435K – 592
2025
Q3 		$435K Buy
+23,952
New +$433K 0.01% 457
2025
Q1 		– Sell
-246,234
Closed -$4.53M – 336
2024
Q4 		$4.53M Buy
246,234
+87,272
+55% +$1.42M 0.08% 226
2024
Q3 		$2.3M Buy
+158,962
New +$2.14M 0.05% 309

Other funds holding ATEN

BlackRock
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
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
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Weiss Asset Management's ATEN Position: Q1 2026 in Review

Weiss Asset Management opened a new position in A10 Networks (ATEN) in Q1 2026: 21,630 shares worth $500K. The stake represents 0.01% of the portfolio and ranks #399 among its holdings. This is a return to the name: Weiss Asset Management previously reported a position in ATEN as recently as Q3 2025.

Weiss Asset Management first reported a position in ATEN in Q3 2024 and has held it in 4 quarters since. The position peaked at $4.53M in Q4 2024. 264 funds tracked by Wall St. Rank hold ATEN as of Q1 2026.

  • Weiss Asset Management held 21,630 shares of A10 Networks worth $500K as of Q1 2026.
  • A10 Networks was a new Weiss Asset Management position in Q1 2026.
  • A10 Networks made up 0.01% of Weiss Asset Management's portfolio in Q1 2026, its #399 holding.
  • Weiss Asset Management first reported a position in A10 Networks in Q3 2024 and has held it in 4 quarters since.
  • Weiss Asset Management's A10 Networks position peaked at $4.53M in Q4 2024.
  • 264 funds tracked by Wall St. Rank held A10 Networks as of Q1 2026.

Based on Weiss Asset Management's 13F filing for Q1 2026, filed 15 May 2026.