Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s A10 Networks ATEN Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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 		$234K Buy
+6,258
New +$182K ﹤0.01% 631
2020
Q3 		– Sell
-39,200
Closed -$267K – 762
2020
Q2 		$267K Sell
39,200
-25,200
-39% -$169K ﹤0.01% 682
2020
Q1 		$400K Buy
+64,400
New +$412K ﹤0.01% 626

Other funds holding ATEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
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
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s ATEN Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) opened a new position in A10 Networks (ATEN) in Q2 2026: 6,258 shares worth $234K. The stake represents ﹤0.01% of the portfolio and ranks #631 among its holdings. This is a return to the name: Grantham, Mayo, Van Otterloo & Co (GMO) previously reported a position in ATEN as recently as Q2 2020.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in ATEN in Q1 2020 and has held it in 3 quarters since. The position peaked at $400K in Q1 2020. 311 funds tracked by Wall St. Rank hold ATEN as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 6,258 shares of A10 Networks worth $234K as of Q2 2026.
  • A10 Networks was a new Grantham, Mayo, Van Otterloo & Co (GMO) position in Q2 2026.
  • A10 Networks made up ﹤0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #631 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in A10 Networks in Q1 2020 and has held it in 3 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s A10 Networks position peaked at $400K in Q1 2020.
  • 311 funds tracked by Wall St. Rank held A10 Networks as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.