Marshall Wace
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Marshall Wace’s Rio Tinto RIO Stock Holding History

Marshall Wace’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
2016
Q3 		– Sell
-750,000
Closed -$24.3M – 1105
2016
Q2 		$24.3M Buy
+750,000
New +$22.4M 0.2% 123

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

Marshall Wace's RIO Position: Q2 2026 in Review

Marshall Wace reduced its Rio Tinto (RIO) stake by 94% in Q2 2026, selling an estimated $10.8M and leaving 7,346 shares worth $697K. The position accounts for ﹤0.01% of the portfolio, ranked #2370.

Marshall Wace first reported a position in RIO in Q1 2016 and has held it in 28 quarters since. The position peaked at $72.2M in Q1 2022. 965 funds tracked by Wall St. Rank hold RIO as of Q2 2026.

  • Marshall Wace held 7,346 shares of Rio Tinto worth $697K as of Q2 2026.
  • Marshall Wace sold 106,682 Rio Tinto shares in Q2 2026, an estimated $10.8M.
  • Rio Tinto made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2370 holding.
  • Marshall Wace first reported a position in Rio Tinto in Q1 2016 and has held it in 28 quarters since.
  • Marshall Wace's Rio Tinto position peaked at $72.2M in Q1 2022.
  • 965 funds tracked by Wall St. Rank held Rio Tinto as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.