Marshall Wace’s Rio Tinto RIO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $10.6M | Buy |
114,028
+90,924
| +394% | +$8.29M | 0.01% | 950 |
|
|
2025
Q4 | $1.85M | Sell |
23,104
-573,940
| -96% | -$41.3M | ﹤0.01% | 1616 |
|
|
2025
Q3 | $39.4M | Sell |
597,044
-244,535
| -29% | -$15.1M | 0.04% | 397 |
|
|
2025
Q2 | $49.1M | Buy |
+841,579
| New | +$49.7M | 0.06% | 300 |
|
|
2025
Q1 | – | Sell |
-7,126
| Closed | -$419K | – | 3021 |
|
|
2024
Q4 | $419K | Buy |
+7,126
| New | +$455K | ﹤0.01% | 2111 |
|
|
2024
Q2 | – | Sell |
-48,100
| Closed | -$3.07M | – | 2889 |
|
|
2024
Q1 | $3.07M | Sell |
48,100
-156,060
| -76% | -$10.4M | ﹤0.01% | 1187 |
|
|
2023
Q4 | $15.2M | Sell |
204,160
-234,578
| -53% | -$15.7M | 0.03% | 558 |
|
|
2023
Q3 | $27.9M | Sell |
438,738
-50,030
| -10% | -$3.19M | 0.06% | 340 |
|
|
2023
Q2 | $31.2M | Buy |
+488,768
| New | +$31.4M | 0.06% | 330 |
|
|
2023
Q1 | – | Sell |
-1,003,409
| Closed | -$71.4M | – | 3043 |
|
|
2022
Q4 | $71.4M | Buy |
1,003,409
+184,727
| +23% | +$11.6M | 0.16% | 134 |
|
|
2022
Q3 | $45.1M | Buy |
818,682
+529,206
| +183% | +$30.5M | 0.1% | 223 |
|
|
2022
Q2 | $17.7M | Sell |
289,476
-608,261
| -68% | -$43.6M | 0.04% | 527 |
|
|
2022
Q1 | $72.2M | Buy |
897,737
+299,297
| +50% | +$22.7M | 0.14% | 154 |
|
|
2021
Q4 | $40.1M | Buy |
598,440
+590,957
| +7,897% | +$38.3M | 0.07% | 266 |
|
|
2021
Q3 | $500K | Hold |
7,483
| – | – | ﹤0.01% | 2384 |
|
|
2021
Q2 | $628K | Buy |
7,483
+2,051
| +38% | +$176K | ﹤0.01% | 2030 |
|
|
2021
Q1 | $422K | Sell |
5,432
-66,085
| -92% | -$5.42M | ﹤0.01% | 2008 |
|
|
2020
Q4 | $5.38M | Buy |
71,517
+66,944
| +1,464% | +$4.4M | 0.03% | 548 |
|
|
2020
Q3 | $276K | Sell |
4,573
-210,529
| -98% | -$12.9M | ﹤0.01% | 1383 |
|
|
2020
Q2 | $12.1M | Buy |
215,102
+26,923
| +14% | +$1.36M | 0.08% | 240 |
|
|
2020
Q1 | $8.57M | Buy |
188,179
+184,604
| +5,164% | +$9.48M | 0.09% | 244 |
|
|
2019
Q4 | $212K | Buy |
+3,575
| New | +$194K | ﹤0.01% | 1334 |
|
|
2019
Q3 | – | Sell |
-223,011
| Closed | -$13.9M | – | 1895 |
|
|
2019
Q2 | $13.9M | Buy |
223,011
+216,335
| +3,240% | +$13M | 0.11% | 202 |
|
|
2019
Q1 | $393K | Buy |
+6,676
| New | +$367K | ﹤0.01% | 1203 |
|
|
2017
Q1 | – | Sell |
-186,641
| Closed | -$7.18M | – | 672 |
|
|
2016
Q4 | $7.18M | Buy |
+186,641
| New | +$6.84M | 0.05% | 396 |
|
|
2016
Q3 | – | Sell |
-81,115
| Closed | -$2.54M | – | 1104 |
|
|
2016
Q2 | $2.54M | Buy |
81,115
+71,292
| +726% | +$2.13M | 0.02% | 530 |
|
|
2016
Q1 | $278K | Buy |
+9,823
| New | +$262K | ﹤0.01% | 934 |
|
Other funds holding RIO
Marshall Wace's RIO Position: Q1 2026 in Review
Marshall Wace increased its Rio Tinto (RIO) stake by 394% in Q1 2026, buying an estimated $8.29M and bringing the position to 114,028 shares worth $10.6M. The position accounts for 0.01% of the portfolio, ranked #950.
Marshall Wace first reported a position in RIO in Q1 2016 and has held it in 27 quarters since. The position peaked at $72.2M in Q1 2022. 932 funds tracked by Wall St. Rank hold RIO as of Q1 2026.
- Marshall Wace held 114,028 shares of Rio Tinto worth $10.6M as of Q1 2026.
- Marshall Wace bought 90,924 Rio Tinto shares in Q1 2026, an estimated $8.29M.
- Rio Tinto made up 0.01% of Marshall Wace's portfolio in Q1 2026, its #950 holding.
- Marshall Wace first reported a position in Rio Tinto in Q1 2016 and has held it in 27 quarters since.
- Marshall Wace's Rio Tinto position peaked at $72.2M in Q1 2022.
- 932 funds tracked by Wall St. Rank held Rio Tinto as of Q1 2026.
Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.