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RIO · Rio Tinto PLC

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$103.27 +0.43 (+0.42%) At close · Sep 4
Market Cap
$167.25B
Shares
1.63B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 976
Total Value: $13,087,709,413
Total Shares: 137,940,456
Showing 1–100 of 1,013 holdings by value · page 1 of 11

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 976 13F filers · Δ vs Mar 31, 2026
Top Holder
15.0%
Sep 2023 → Jun 2026 · range 12.1% – 17.6%
+0.4 pts
Top 5
36.3%
Sep 2023 → Jun 2026 · range 35.7% – 46.4%
+0.6 pts
Top 10
47.2%
Sep 2023 → Jun 2026 · range 47.2% – 62.6%
−0.4 pts
HHI
418
Sep 2023 → Jun 2026 · range 409 – 626
Broadly held+10

Quarterly Activity

vs Mar 31, 2026
New
113
Increased
391
Decreased
291
Sold Out
92
Unchanged
181
Holder count: +21
Institutional value: +1.7%
Shares held: -0.1%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,013
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 863064 CUSIP 767204100 13F (30d) 511 filings 489 filers Visit website Investor relations