Grantham, Mayo, Van Otterloo & Co (GMO)
RIO icon

Grantham, Mayo, Van Otterloo & Co (GMO)’s Rio Tinto RIO Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio RIO Stock Details RIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$175M Sell
1,839,135
-165,702
-8% -$16.8M 0.39% 38
2026
Q1 		$187M Buy
2,004,837
+436,593
+28% +$39.8M 0.48% 35
2025
Q4 		$126M Buy
1,568,244
+441,799
+39% +$31.8M 0.32% 40
2025
Q3 		$74.4M Buy
1,126,445
+199,962
+22% +$12.4M 0.21% 47
2025
Q2 		$54M Buy
926,483
+154,407
+20% +$9.12M 0.16% 63
2025
Q1 		$46.4M Buy
772,076
+384,612
+99% +$23.7M 0.15% 77
2024
Q4 		$22.8M Sell
387,464
-16,490
-4% -$1.05M 0.07% 177
2024
Q3 		$28.7M Buy
403,954
+109,013
+37% +$7M 0.09% 150
2024
Q2 		$19.4M Buy
294,941
+237,486
+413% +$16.2M 0.07% 203
2024
Q1 		$3.66M Buy
57,455
+44,247
+335% +$2.96M 0.01% 323
2023
Q4 		$983K Sell
13,208
-5,278
-29% -$354K ﹤0.01% 374
2023
Q3 		$1.18M Sell
18,486
-44,345
-71% -$2.83M 0.01% 442
2023
Q2 		$4.01M Buy
+62,831
New +$4.04M 0.02% 361
2022
Q4 		– Sell
-74,000
Closed -$4.07M – 768
2022
Q3 		$4.07M Buy
74,000
+56,300
+318% +$3.24M 0.02% 353
2022
Q2 		$1.08M Sell
17,700
-22,700
-56% -$1.63M 0.01% 509
2022
Q1 		$3.25M Buy
+40,400
New +$3.07M 0.02% 399

Other funds holding RIO

Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return
State Farm Mutual Automobile Insurance
State Farm Mutual Automobile Insurance Bloomington, Illinois $146B AUM 55.73% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

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

Grantham, Mayo, Van Otterloo & Co (GMO) reduced its Rio Tinto (RIO) stake by 8.3% in Q2 2026, selling an estimated $16.8M and leaving 1,839,135 shares worth $175M. The position accounts for 0.39% of the portfolio, ranked #38.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in RIO in Q1 2022 and has held it in 16 quarters since. The position peaked at $187M in Q1 2026. 964 funds tracked by Wall St. Rank hold RIO as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 1,839,135 shares of Rio Tinto worth $175M as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) sold 165,702 Rio Tinto shares in Q2 2026, an estimated $16.8M.
  • Rio Tinto made up 0.39% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #38 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Rio Tinto in Q1 2022 and has held it in 16 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Rio Tinto position peaked at $187M in Q1 2026.
  • 964 funds tracked by Wall St. Rank held Rio Tinto as of Q2 2026.

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