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RIO in the 13F filings

Rio Tinto · CUSIP 767204100

Sector · Materials
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
23
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 6 listed it in both
Shares listed
11,498,154
combined, among listed positions
Reported value
$920m
combined, at the quarter end

Among the 92 comparable managers: 18 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -317,714.

Managers listing RIO in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

23 of 23 holders

ActionFiling
Arrowstreet Capital LP3,886,335$311m0.18%Added+2,451,14013 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC2,223,502$178m0.13%Added+214,68627 Oct 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,925,777$154munder 0.1%Added+11,67917 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP887,161$71munder 0.1%Added+268,12917 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC814,876$65munder 0.1%Added+274,18017 Feb 2026 (the filing on sec.gov)
MFS Investment Management347,682$28munder 0.1%Added+91,65522 Jan 2026 (the filing on sec.gov)
Balyasny Asset Management LLC272,368$22munder 0.1%Added+36,04117 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP208,950$17munder 0.1%Added+198,09017 Feb 2026 (the filing on sec.gov)
Millennium Management LLC203,131$16munder 0.1%Trimmed-877,22117 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC186,600$15munder 0.1%Trimmed-1,024,20012 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp172,801$14munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC127,678$10munder 0.1%Trimmed-434,58117 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC108,799$8.7munder 0.1%Added+21,31713 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC53,952$4.3munder 0.1%Added+22,18517 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP23,104$1.8munder 0.1%Trimmed-573,94013 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.14,010$1.1munder 0.1%Trimmed-1,007,75117 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC12,710$1.0munder 0.1%Added+4,91410 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP9,462$757kunder 0.1%Added+5,38913 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP7,400$592kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP5,553$444kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Dodge & Cox3,000$240kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Invesco Ltd2,779$222kunder 0.1%Newnew19 Feb 2026 (the filing on sec.gov)
Baillie Gifford & Co524$42kunder 0.1%Added+17723 Jan 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (5)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
9 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

051015202014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
RIO by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20135$55mn.a.n.a.
Q3 20135$59mn.a.n.a.
Q4 20135$48mn.a.n.a.
Q1 20145$71mn.a.n.a.
Q2 20144$43mn.a.n.a.
Q3 20145$50mn.a.n.a.
Q4 20145$80mn.a.n.a.
Q1 20156$131mn.a.n.a.
Q2 201510$126mn.a.n.a.
Q3 20158$77mn.a.n.a.
Q4 20156$118mn.a.n.a.
Q1 20163$17mn.a.n.a.
Q2 20168$123mn.a.n.a.
Q3 20167$67mn.a.n.a.
Q4 20168$192mn.a.n.a.
Q1 20179$363mn.a.n.a.
Q2 201711$423mn.a.n.a.
Q3 20177$435mn.a.n.a.
Q4 201710$653mn.a.n.a.
Q1 201811$736mn.a.n.a.
Q2 201810$636mn.a.n.a.
Q3 20189$333mn.a.n.a.
Q4 201811$480mn.a.n.a.
Q1 201910$1.1bnn.a.n.a.
Q2 201912$1.2bnn.a.n.a.
Q3 201911$936mn.a.n.a.
Q4 201911$984mn.a.n.a.
Q1 202010$548mn.a.n.a.
Q2 202012$737mn.a.n.a.
Q3 202011$762mn.a.n.a.
Q4 20209$867mn.a.n.a.
Q1 202110$1.1bnn.a.n.a.
Q2 20218$1.5bnn.a.n.a.
Q3 202110$1.4bnn.a.n.a.
Q4 202111$1.8bnn.a.n.a.
Q1 202212$2.8bnn.a.n.a.
Q2 202212$1.9bnn.a.n.a.
Q3 202217$2.1bnn.a.n.a.
Q4 202213$3.0bnn.a.n.a.
Q1 202314$2.8bnn.a.n.a.
Q2 202317$2.5bnn.a.n.a.
Q3 202316$2.7bnn.a.n.a.
Q4 202315$3.2bn104
Q1 202412$2.3bn39
Q2 20248$2.2bn33
Q3 20249$2.2bn54
Q4 20247$1.3bn43
Q1 202511$1.2bn72
Q2 202511$684m46
Q3 20256$384m45
Q4 20255$499m1810
Q1 20267$681m1610
Q2 202610$573m1314

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

RIO and LIN →RIO and GLW →RIO and HWM →Choose a stock to compare with RIO →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own RIO, latest filings →Back to the 13F Explorer →