Ticker · CUSIP 767204100

RIO

ADR

RIO TINTO PLC

Basic Materials·Other Industrial Metals & Mining

···Share

Holders (tracked)

Combined shares

25,187,511

Combined value

$2.02B

Last close

$100.15

Quarter

2025Q4

Price is +25.1% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$100.15+44.90 (+81.27%)H $100.15 · L $53.08 · Avg Vol 3.4M

Congress buyCongress sell

Tracked holders · last 8 quarters

+8 vs previous quarter over the last 8.

SEC event timeline

27 events

Jeremy Grantham (GMO) added2026-02-17
+441,799 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+274,180 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−1,007,751 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−877,221 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+6,500 shares · 2025Q4
Position
Wellington Management added2026-02-17
+268,129 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+172,801 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+22,185 shares · 2025Q4
Position
Two Sigma Investments opened position2026-02-17
+5,553 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+5,389 shares · 2025Q4
Position
Dodge & Cox opened position2026-02-13
+3,000 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−1,024,200 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+7,353 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) added2026-02-09
+522,576 shares · 2025Q4
Position
Baillie Gifford & Co added2026-01-23
+177 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) exited2025-12-09
−153,619 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−66,018 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+19,433 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+329,691 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−3,967,802 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−7,353 shares · 2025Q3
Position
Renaissance Technologies trimmed2025-11-13
−45,000 shares · 2025Q3
Position
Jeremy Grantham (GMO) added2025-11-13
+199,962 shares · 2025Q3
Position
Dodge & Cox exited2025-11-13
−4,000 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) trimmed2025-11-13
−613,812 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) added2025-11-12
+557,234 shares · 2025Q3
Position
Baillie Gifford & Co added2025-10-31
+147 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for RIO →

Follow-the-investor returns

If you'd copied each holder of RIO…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Dodge & Cox	2016Q1	$28.29	+254.0%	$300K
Ken Fisher (Fisher Asset Mgmt)	2016Q1	$60.23	+66.3%	$1.97B
Renaissance Technologies	2016Q1	$60.77	+64.8%	$18.7M
Steve Cohen (Point72)	2017Q2	$63.70	+57.2%	$651K
Two Sigma Investments	2016Q1	$64.35	+55.6%	$556K
Norges Bank (Norway SWF)	2020Q1	$65.99	+51.8%	$736K
Jeremy Grantham (GMO)	2022Q1	$67.98	+47.3%	$157.1M
Wellington Management	2016Q1	$69.05	+45.0%	$88.8M
D.E. Shaw & Co.	2016Q1	$69.96	+43.2%	$1.3M
D.E. Shaw & Co.	2016Q1	$69.96	+43.2%	$1.3M
D.E. Shaw & Co.	2016Q1	$69.96	+43.2%	$1.3M
Baillie Gifford & Co	2016Q1	$70.45	+42.2%	$52K
Ken Griffin (Citadel Advisors)	2016Q1	$70.91	+41.2%	$87.6M
Ken Griffin (Citadel Advisors)	2016Q1	$70.91	+41.2%	$87.6M
Ken Griffin (Citadel Advisors)	2016Q1	$70.91	+41.2%	$87.6M
AQR Capital Management	2024Q2	$70.95	+41.2%	$5.4M
Paul Tudor Jones (Tudor Investment)	2020Q4	$73.04	+37.1%	$5.0M
Paul Tudor Jones (Tudor Investment)	2020Q4	$73.04	+37.1%	$5.0M
Paul Tudor Jones (Tudor Investment)	2020Q4	$73.04	+37.1%	$5.0M
Ray Dalio (Bridgewater Associates)	2016Q1	$73.08	+37.0%	$948K
Izzy Englander (Millennium Mgmt)	2016Q1	$79.20	+26.4%	$9.9M
Izzy Englander (Millennium Mgmt)	2016Q1	$79.20	+26.4%	$9.9M
Izzy Englander (Millennium Mgmt)	2016Q1	$79.20	+26.4%	$9.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions5

Paul Tudor Jones (Tudor Investment)
+172,801
$13.8M
Norges Bank (Norway SWF)
+7,353
$588K
Steve Cohen (Point72)
+6,500
$520K
Two Sigma Investments
+5,553
$444K
Dodge & Cox
+3,000
$240K

Added to7

Ken Fisher (Fisher Asset Mgmt)
+522,576
$41.8M
Jeremy Grantham (GMO)
+441,799
$35.4M
Ken Griffin (Citadel Advisors)
+274,180
$21.9M
Wellington Management
+268,129
$21.5M
AQR Capital Management
+22,185
$1.8M
Ray Dalio (Bridgewater Associates)
+5,389
$431K
Baillie Gifford & Co
+177
$14K

Trimmed3

Renaissance Technologies
−1,024,200
$82.0M
D.E. Shaw & Co.
−1,007,751
$80.7M
Izzy Englander (Millennium Mgmt)
−877,221
$70.2M

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	17	24,770,974	$6.37B	—
2022Q2	19	25,266,241	$1.99B	+2
2022Q3	19	33,749,636	$1.86B	—
2022Q4	18	37,237,196	$2.65B	-1
2023Q1	21	35,290,456	$2.42B	+3
2023Q2	20	36,986,871	$2.36B	-1
2023Q3	18	21,416,721	$1.36B	-2
2023Q4	16	22,077,863	$1.64B	-2
2024Q1	17	48,734,186	$3.11B	+1
2024Q2	19	43,998,229	$2.90B	+2
2024Q3	18	44,206,252	$3.15B	-1
2024Q4	20	22,251,989	$1.31B	+2
2025Q1	20	37,780,210	$2.27B	—
2025Q2	21	29,356,435	$1.71B	+1
2025Q3	15	26,362,041	$1.74B	-6
2025Q4	23	25,187,511	$2.02B	+8

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-10-31	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-10-30	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-10-30	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-07-03	Gilbert Cisneros	Sell	$1K – $15K	PDF ↗
2025-06-24	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-04-21	Bruce Westerman	Sell	$1K – $15K	PDF ↗
2025-04-09	Josh Gottheimer	Sell (P)	$1K – $15K	PDF ↗
2025-03-03	Bruce Westerman	Buy	$1K – $15K	PDF ↗

Who owns RIO

23 super-investors · 2025Q4

Tracked stake

25.19M

Combined value

$2.02B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New7Added9Trim7

#	Manager	Shares	Value	% of book	Last action
1	Ken Fisher Fisher Asset Mgmt	19.64M	$1.57B	0.5%	Added+522.6K
2	Jeremy Grantham GMO	1.57M	$126M	0.3%	Added+441.8K
3	Wellington Management	887.2K	$71M	0.0%	Added+268.1K
4	Ken Griffin Citadel Advisors	874.3K	$70M	0.0%	Added+274.2K
5	Ken Griffin Citadel Advisors	814.9K	$65M	0.0%	Added+274.2K
6	Ken Griffin Citadel Advisors	497.5K	$40M	0.0%	Added+274.2K
7	Izzy Englander Millennium Mgmt	203.1K	$16M	0.0%	Trim−877.2K
8	Renaissance Technologies	186.6K	$15M	0.0%	Trim−1.02M
9	Paul Tudor Jones Tudor Investment	172.8K	$14M	0.0%	New+172.8K
10	Izzy Englander Millennium Mgmt	98.5K	$8M	0.0%	Trim−877.2K
11	Paul Tudor Jones Tudor Investment	57.3K	$5M	0.0%	New+172.8K
12	AQR Capital Management	54.0K	$4M	0.0%	Added+22.2K
13	Paul Tudor Jones Tudor Investment	50.4K	$4M	0.0%	New+172.8K
14	D.E. Shaw & Co.	14.0K	$1M	0.0%	Trim−1.01M
15	D.E. Shaw & Co.	13.4K	$1M	0.0%	Trim−1.01M
16	Izzy Englander Millennium Mgmt	10.2K	$816K	0.0%	Trim−877.2K
17	D.E. Shaw & Co.	10.0K	$800K	0.0%	Trim−1.01M
18	Ray Dalio Bridgewater Associates	9.5K	$757K	0.0%	Added+5.4K
19	Norges Bank Norway SWF	7.4K	$588K	0.0%	New+7.4K
20	Steve Cohen Point72	6.5K	$520K	0.0%	New+6.5K
21	Two Sigma Investments	5.6K	$444K	0.0%	New+5.6K
22	Dodge & Cox	3.0K	$240K	0.0%	New+3.0K
23	Baillie Gifford & Co	524	$42K	0.0%	Added+177

Recent moves

20 transactions

NEWPaul Tudor Jones (Tudor Investment)
+172,801 · 2025Q4
ADDAQR Capital Management
+22,185 · 2025Q4
ADDJeremy Grantham (GMO)
+441,799 · 2025Q4
NEWTwo Sigma Investments
+5,553 · 2025Q4
TRIMD.E. Shaw & Co.
−1,007,751 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−877,221 · 2025Q4
NEWSteve Cohen (Point72)
+6,500 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+274,180 · 2025Q4
ADDWellington Management
+268,129 · 2025Q4
NEWDodge & Cox
+3,000 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+5,389 · 2025Q4
TRIMRenaissance Technologies
−1,024,200 · 2025Q4
NEWNorges Bank (Norway SWF)
+7,353 · 2025Q4
ADDKen Fisher (Fisher Asset Mgmt)
+522,576 · 2025Q4
ADDBaillie Gifford & Co
+177 · 2025Q4
SOLDPaul Tudor Jones (Tudor Investment)
−153,619 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+329,691 · 2025Q3
TRIMD.E. Shaw & Co.
−66,018 · 2025Q3
TRIMWellington Management
−3,967,802 · 2025Q3
ADDAQR Capital Management
+19,433 · 2025Q3

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