Acadian Asset Management’s Rio Tinto RIO Stock Holding History

Acadian Asset Management’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 Q1	$3.26M	Buy	34,931 +22,221	+175%	+$2.03M	﹤0.01%	818
2025 Q4	$1.02M	Buy	12,710 +4,914	+63%	+$354K	﹤0.01%	1113
2025 Q3	$513K	Buy	7,796 +4,015	+106%	+$248K	﹤0.01%	1211
2025 Q2	$220K	Sell	3,781 -53,814	-93%	-$3.18M	﹤0.01%	1292
2025 Q1	$3.46M	Buy	57,595 +15,839	+38%	+$975K	0.01%	609
2024 Q4	$2.45M	Buy	41,756 +41,020	+5,573%	+$2.62M	0.01%	717
2024 Q3	$52K	Sell	736 -18,791	-96%	-$1.21M	﹤0.01%	1779
2024 Q2	$1.28M	Sell	19,527 -1,075,464	-98%	-$73.2M	﹤0.01%	912
2024 Q1	$69.8M	Sell	1,094,991 -2,469,720	-69%	-$165M	0.24%	107
2023 Q4	$265M	Buy	3,564,711 +661,618	+23%	+$44.4M	1.03%	21
2023 Q3	$185M	Buy	2,903,093 +161,532	+6%	+$10.3M	0.77%	28
2023 Q2	$175M	Buy	2,741,561 +227,029	+9%	+$14.6M	0.72%	23
2023 Q1	$172M	Buy	2,514,532 +2,120,343	+538%	+$154M	0.76%	19
2022 Q4	$28M	Buy	394,189 +353,049	+858%	+$22.2M	0.14%	166
2022 Q3	$2.26M	Sell	41,140 -110,858	-73%	-$6.39M	0.01%	603
2022 Q2	$9.27M	Buy	151,998 +44,691	+42%	+$3.2M	0.05%	279
2022 Q1	$8.62M	Buy	+107,307	New	+$8.15M	0.04%	341
2021 Q4	–	Sell	-298,556	Closed	-$19.9M	–	1825
2021 Q3	$19.9M	Sell	298,556 -550,558	-65%	-$43M	0.08%	209
2021 Q2	$71.2M	Sell	849,114 -118,117	-12%	-$10.2M	0.27%	102
2021 Q1	$75.1M	Sell	967,231 -4,839	-0.5%	-$397K	0.29%	93
2020 Q4	$73.1M	Buy	972,070 +875	+0.1%	+$57.5K	0.28%	80
2020 Q3	$58.7M	Sell	971,195 -904	-0.1%	-$55.4K	0.25%	92
2020 Q2	$54.6M	Buy	+972,099	New	+$49.2M	0.24%	104
2017 Q3	–	Sell	-1,335	Closed	-$56K	–	1514
2017 Q2	$56K	Sell	1,335 -64,092	-98%	-$2.57M	﹤0.01%	1110
2017 Q1	$2.66M	Buy	+65,427	New	+$2.78M	0.01%	548
2016 Q2	–	Sell	-2,007	Closed	-$57K	–	1509
2016 Q1	$57K	Buy	+2,007	New	+$53.4K	﹤0.01%	1079

Other funds holding RIO

Fisher Asset Management Camas, Washington $295B AUM 31.6% 1-Year Est. Return

State Farm Mutual Automobile Insurance Bloomington, Illinois $127B AUM 32.55% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Acadian Asset Management's RIO Position: Q1 2026 in Review

Acadian Asset Management increased its Rio Tinto (RIO) stake by 175% in Q1 2026, buying an estimated $2.03M and bringing the position to 34,931 shares worth $3.26M. The position accounts for ﹤0.01% of the portfolio, ranked #818.

Acadian Asset Management first reported a position in RIO in Q1 2016 and has held it in 26 quarters since. The position peaked at $265M in Q4 2023. 932 funds tracked by Wall St. Rank hold RIO as of Q1 2026.

Acadian Asset Management held 34,931 shares of Rio Tinto worth $3.26M as of Q1 2026.
Acadian Asset Management bought 22,221 Rio Tinto shares in Q1 2026, an estimated $2.03M.
Rio Tinto made up ﹤0.01% of Acadian Asset Management's portfolio in Q1 2026, its #818 holding.
Acadian Asset Management first reported a position in Rio Tinto in Q1 2016 and has held it in 26 quarters since.
Acadian Asset Management's Rio Tinto position peaked at $265M in Q4 2023.
932 funds tracked by Wall St. Rank held Rio Tinto as of Q1 2026.

Based on Acadian Asset Management's 13F filing for Q1 2026, filed 13 May 2026.