Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Advanced Drainage Systems WMS Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio WMS Stock Details WMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$34.2M Buy
218,069
+20,225
+10% +$2.89M 0.08% 117
2026
Q1 		$27.1M Sell
197,844
-3,800
-2% -$588K 0.07% 142
2025
Q4 		$29.2M Sell
201,644
-13,831
-6% -$2M 0.07% 118
2025
Q3 		$29.9M Sell
215,475
-53,914
-20% -$7.08M 0.08% 124
2025
Q2 		$30.9M Sell
269,389
-109,800
-29% -$12.3M 0.09% 119
2025
Q1 		$41.2M Buy
379,189
+66,126
+21% +$7.71M 0.13% 101
2024
Q4 		$36.2M Buy
313,063
+73,100
+30% +$10.1M 0.12% 113
2024
Q3 		$37.7M Buy
239,963
+14,962
+7% +$2.34M 0.12% 121
2024
Q2 		$36.1M Buy
225,001
+109,945
+96% +$18.4M 0.12% 113
2024
Q1 		$19.8M Buy
+115,056
New +$17.3M 0.07% 188
2023
Q3 		– Sell
-35,000
Closed -$3.98M – 698
2023
Q2 		$3.98M Sell
35,000
-14,700
-30% -$1.39M 0.02% 363
2023
Q1 		$4.19M Buy
+49,700
New +$4.37M 0.02% 341

Other funds holding WMS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $15.4B AUM 26.43% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

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

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Advanced Drainage Systems (WMS) stake by 10% in Q2 2026, buying an estimated $2.89M and bringing the position to 218,069 shares worth $34.2M. The position accounts for 0.08% of the portfolio, ranked #117.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in WMS in Q1 2023 and has held it in 12 quarters since. The position peaked at $41.2M in Q1 2025. 551 funds tracked by Wall St. Rank hold WMS as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 218,069 shares of Advanced Drainage Systems worth $34.2M as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 20,225 Advanced Drainage Systems shares in Q2 2026, an estimated $2.89M.
  • Advanced Drainage Systems made up 0.08% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #117 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Advanced Drainage Systems in Q1 2023 and has held it in 12 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Advanced Drainage Systems position peaked at $41.2M in Q1 2025.
  • 551 funds tracked by Wall St. Rank held Advanced Drainage Systems as of Q2 2026.

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