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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
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 7 listed it in both
Shares listed
11,229,234
combined, among listed positions
Reported value
$1.1bn
combined, at the quarter end

1 line marked †. Value as filed implies a price far from other filers'. Each counts in holders and value as filed, and is left out of the net change in shares.

Among the 91 comparable managers: 13 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,143,597.

Managers listing RIO in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

27 of 27 holders

ActionFiling
Neuberger Berman Group LLC2,389,913$227m0.15%Trimmed-64,98927 Oct 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,316,374$220munder 0.1%Added+136,18813 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP1,715,018$163m0.07%Trimmed-1,995,20613 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,214,600$115m0.16%Added+248,80013 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC597,611$57munder 0.1%Trimmed-405,81414 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP529,665$50munder 0.1%Trimmed-94,93114 Aug 2026 (the filing on sec.gov)
MFS Investment Management† Value as filed implies a price far from other filers'.402,007$44munder 0.1%Added+33,6673 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP438,396$42munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Millennium Management LLC359,321$34munder 0.1%Added+339,96814 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp249,474$24munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC202,627$19munder 0.1%Added+75,48314 Aug 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP190,000$18munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Farallon Capital Management LLC183,475$17m0.08%Added+129,67514 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC120,199$11munder 0.1%Trimmed-134,7492 Sep 2026 (the filing on sec.gov)
Squarepoint Ops LLC84,048$8.0munder 0.1%Trimmed-8,92614 Aug 2026 (the filing on sec.gov)
Bridgewater Associates LP72,797$6.9munder 0.1%Trimmed-41,44214 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.54,640$5.2munder 0.1%Added+1,64714 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP36,876$3.5munder 0.1%Trimmed-15,06214 Aug 2026 (the filing on sec.gov)
Man Group PLC18,037$1.7munder 0.1%Trimmed-49,82514 Aug 2026 (the filing on sec.gov)
Quantbot Technologies LP16,594$1.6m0.06%Newnew12 Aug 2026 (the filing on sec.gov)
Verition Fund Management LLC8,951$850kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Walleye Capital LLC8,340$792kunder 0.1%Trimmed-18,5793 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP7,346$697kunder 0.1%Trimmed-106,68213 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC4,952$469kunder 0.1%Trimmed-29,97913 Aug 2026 (the filing on sec.gov)
Invesco Ltd4,449$422kunder 0.1%Added+6514 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, 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 (1)

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 →