Estimated market cap $104.19BShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of Dec 31, 2025, last close Nov 13, 2026.1.26B ADSs, shares as of Dec 31, 2025CIK 863064The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
—
No open-market trades
Congress trades, 24 mo
9
4 purchases, 5 sales
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
Ask your AI:
Latest 10-Q
What changed in Rio Tinto Plc's latest quarterly report, compared with the one before.
We have not read a recent 10-Q for this company yet.
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
Loading…
13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Loading…
Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Loading…
Lobbying
What Rio Tinto Plc and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
Loading…
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
668
284 added · 194 trimmed
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No recent insider purchases or sales for this company.
13F holders
92.30M shares
668 funds report RIO. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 10% of the company, counted in US-listed ADS (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 128.31M reported ADSs by 1.26B ADSs, from the cover page of the company’s filing as of Dec 31, 2025. An ADS stands for a fixed number of the company’s ordinary shares, so the company’s shares are converted to ADSs. 13F covers only ADSs listed in the US. Shares held at home and by funds abroad are not in it, so this figure is lower than global institutional ownership figures.
970 funds hold the stock.
Q3 2026: 7.3% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 20259.8%
Q3 202510%
Q4 202510%
Q1 202610%
Q2 202610%
Q3 2026 (so far)7.3%
Q3 2026. 66 new, 284 added to, 194 trimmed, 367 exited since Q2 2026.
Download CSVEvery fund that holds RIO, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
9 in 24 mo
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Recent congressional trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
What Rio Tinto Plc and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report
Funds holding the stock by quarter
Q2 2013
286
—
91.03M
$3.7B
Q3 2013
290
+4
100.92M
$4.9B
Q4 2013
304
+14
96.56M
$5.5B
Q1 2014
301
-3
101.55M
$5.7B
Q2 2014
317
+16
99.07M
$5.4B
Q3 2014
308
-9
103.71M
$5.1B
Q4 2014
302
-6
107.15M
$4.9B
Q1 2015
307
+5
108.61M
$4.5B
Q2 2015
293
-14
105.46M
$4.3B
Q3 2015
278
-15
99.21M
$3.4B
Q4 2015
254
-24
95.72M
$2.8B
Q1 2016
260
+6
86.94M
$2.5B
Q2 2016
274
+14
88.66M
$2.8B
Q3 2016
278
+4
90.36M
$3.0B
Q4 2016
303
+25
98.67M
$3.8B
Q1 2017
329
+26
97.35M
$4.0B
Q2 2017
325
-4
94.57M
$4.0B
Q3 2017
337
+12
98.08M
$4.6B
Q4 2017
371
+34
97.30M
$5.1B
Q1 2018
388
+17
95.10M
$4.9B
Q2 2018
403
+15
94.28M
$5.2B
Q3 2018
392
-11
93.18M
$4.7B
Q4 2018
388
-4
100.49M
$4.9B
Q1 2019
405
+17
109.72M
$6.5B
Q2 2019
427
+22
104.80M
$6.5B
Q3 2019
391
-36
93.11M
$4.8B
Q4 2019
426
+35
93.75M
$5.6B
Q1 2020
391
-35
94.68M
$4.3B
Q2 2020
416
+25
97.46M
$5.5B
Q3 2020
453
+37
96.10M
$5.8B
Q4 2020
530
+77
94.78M
$7.1B
Q1 2021
588
+58
98.92M
$7.7B
Q2 2021
610
+22
100.16M
$8.4B
Q3 2021
578
-32
102.50M
$6.8B
Q4 2021
603
+25
114.49M
$7.7B
Q1 2022
679
+76
125.58M
$10.1B
Q2 2022
661
-18
124.39M
$7.6B
Q3 2022
634
-27
131.46M
$7.2B
Q4 2022
681
+47
140.33M
$10.0B
Q1 2023
723
+42
134.63M
$9.1B
Q2 2023
711
-12
125.80M
$8.0B
Q3 2023
714
+3
130.60M
$8.3B
Q4 2023
771
+57
136.16M
$10.1B
Q1 2024
750
-21
138.97M
$8.9B
Q2 2024
753
+3
133.87M
$8.8B
Q3 2024
759
+6
133.71M
$9.5B
Q4 2024
752
-7
131.15M
$7.7B
Q1 2025
785
+33
136.72M
$8.0B
Q2 2025
747
-38
123.60M
$7.2B
Q3 2025
771
+24
127.29M
$8.4B
Q4 2025
884
+113
129.30M
$10.3B
Q1 2026
947
+63
127.35M
$11.9B
Q2 2026
971
+24
128.31M
$12.2B
Q3 2026
668
-303
92.30M
$8.7B
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (767204100). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.