Adage Capital Partners’s Rio Tinto RIO Stock Holding History

Adage Capital Partners’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	$48.9M	Sell	524,602 -150,000	-22%	-$13.7M	0.08%	254
2025 Q4	$54M	Buy	674,602 +50,000	+8%	+$3.6M	0.08%	239
2025 Q3	$41.2M	Buy	624,602 +100,000	+19%	+$6.18M	0.07%	280
2025 Q2	$30.6M	Buy	524,602 +444,602	+556%	+$26.3M	0.05%	345
2025 Q1	$4.81M	Sell	80,000 -510,000	-86%	-$31.4M	0.01%	706
2024 Q4	$34.7M	Sell	590,000 -135,000	-19%	-$8.62M	0.06%	292
2024 Q3	$51.6M	Buy	725,000 +275,000	+61%	+$17.7M	0.09%	228
2024 Q2	$29.7M	Sell	450,000 -350,000	-44%	-$23.8M	0.05%	338
2024 Q1	$51M	Buy	+800,000	New	+$53.6M	0.1%	226
2017 Q3	–	Sell	-550,000	Closed	-$23.3M	–	747
2017 Q2	$23.3M	Sell	550,000 -350,000	-39%	-$14M	0.06%	382
2017 Q1	$36.6M	Buy	900,000 +100,000	+13%	+$4.25M	0.09%	280
2016 Q4	$30.8M	Buy	+800,000	New	+$29.3M	0.08%	289
2016 Q2	–	Sell	-650,000	Closed	-$18.4M	–	715
2016 Q1	$18.4M	Buy	+650,000	New	+$17.3M	0.05%	379
2013 Q4	–	Sell	-447,500	Closed	-$21.8M	–	713
2013 Q3	$21.8M	Buy	+447,500	New	+$20.9M	0.06%	353

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

Adage Capital Partners's RIO Position: Q1 2026 in Review

Adage Capital Partners reduced its Rio Tinto (RIO) stake by 22% in Q1 2026, selling an estimated $13.7M and leaving 524,602 shares worth $48.9M. The position accounts for 0.08% of the portfolio, ranked #254.

Adage Capital Partners first reported a position in RIO in Q3 2013 and has held it in 14 quarters since. The position peaked at $54M in Q4 2025. 932 funds tracked by Wall St. Rank hold RIO as of Q1 2026.

Adage Capital Partners held 524,602 shares of Rio Tinto worth $48.9M as of Q1 2026.
Adage Capital Partners sold 150,000 Rio Tinto shares in Q1 2026, an estimated $13.7M.
Rio Tinto made up 0.08% of Adage Capital Partners's portfolio in Q1 2026, its #254 holding.
Adage Capital Partners first reported a position in Rio Tinto in Q3 2013 and has held it in 14 quarters since.
Adage Capital Partners's Rio Tinto position peaked at $54M in Q4 2025.
932 funds tracked by Wall St. Rank held Rio Tinto as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.