Save your place

Sign in to WhoBought

Please try again later.

Ken Griffin's Rio Tinto Group (RIO) position

Yes: as of Q1 2026, Ken Griffin holds 255K shares of RIO worth $24M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
View full portfolio →
Current value
$24M
Shares held
255K
% of portfolio
0.0%
Est. average buy price (i)
$65.42
est. since Q1 2021
Quarter-end price
$93.29

Estimated trade prices

Average price in quarters with purchases
$65.26
Average prices in quarters with sales
  • Q1 2026: $91.17 (560K shares sold)
  • Q2 2025: $59.04 (595K shares sold)
  • Q3 2024: $64.23 (100K shares sold)
  • Q2 2024: $68.05 (2.0M shares sold)
  • Q2 2023: $64.29 (1.1M shares sold)
  • Q1 2023: $72.57 (209K shares sold)
  • Q2 2022: $71.67 (96K shares sold)
  • Q1 2022: $75.91 (926K shares sold)
  • Q4 2021: $64.73 (71K shares sold)
  • Q2 2021: $85.96 (241K shares sold)

RIO price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$50$100$15020222023202420252026Added 861K shares (230.6%) · Q3 2021. Average closing price $78.02 · Price range $65.37–$89.39861KsharespurchasedSold 71K shares (5.8%) · Q4 2021. Average closing price $64.73 · Price range $59.90–$71.0971KsharessoldSold 926K shares (79.7%) · Q1 2022. Average closing price $75.91 · Price range $66.73–$84.00926KsharessoldSold 96K shares (40.8%) · Q2 2022. Average closing price $71.67 · Price range $60.81–$82.6896KsharessoldAdded 832K shares (594.2%) · Q3 2022. Average closing price $57.62 · Price range $51.22–$61.71832KsharespurchasedAdded 713K shares (73.3%) · Q4 2022. Average closing price $62.81 · Price range $52.78–$72.49713KsharespurchasedSold 209K shares (12.4%) · Q1 2023. Average closing price $72.57 · Price range $64.60–$80.40209KsharessoldSold 1.1M shares (73.5%) · Q2 2023. Average closing price $64.29 · Price range $59.05–$70.411.1MsharessoldAdded 1.4M shares (348.7%) · Q3 2023. Average closing price $63.79 · Price range $58.36–$69.811.4MsharespurchasedAdded 351K shares (20.0%) · Q4 2023. Average closing price $67.09 · Price range $60.36–$74.77351KsharespurchasedAdded 30K shares (1.4%) · Q1 2024. Average closing price $66.96 · Price range $62.00–$74.2630KsharespurchasedSold 2.0M shares (95.2%) · Q2 2024. Average closing price $68.05 · Price range $63.00–$73.612.0MsharessoldSold 100K shares (99.0%) · Q3 2024. Average closing price $64.23 · Price range $59.71–$71.23100KsharessoldAdded 296K shares (over 1,000%) · Q4 2024. Average closing price $63.87 · Price range $58.59–$71.16296KsharespurchasedAdded 573K shares (192.7%) · Q1 2025. Average closing price $61.56 · Price range $58.19–$64.29573KsharespurchasedSold 595K shares (68.4%) · Q2 2025. Average closing price $59.04 · Price range $52.32–$62.75595KsharessoldAdded 266K shares (96.6%) · Q3 2025. Average closing price $61.84 · Price range $57.66–$66.01266KsharespurchasedAdded 274K shares (50.7%) · Q4 2025. Average closing price $71.98 · Price range $65.44–$82.24274KsharespurchasedSold 560K shares (68.7%) · Q1 2026. Average closing price $91.17 · Price range $81.13–$100.78560Ksharessold← Earlier —1 sell
Average closing price · filing quarter
$91.17
Price range · filing quarter
$81.13 – $100.78
Sign in to see who bought

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −560K −$51M −68.7% 255K May 15, 2026
Q4 2025 Added +274K +$20M +50.7% 815K Feb 17, 2026
Q3 2025 Added +266K +$16M +96.6% 541K Nov 14, 2025
Q2 2025 Reduced −595K −$35M −68.4% 275K Aug 14, 2025
Q1 2025 Added +573K +$35M +192.7% 870K May 15, 2025
Q4 2024 Added +296K +$19M +29,254.4% 297K Feb 14, 2025
Q3 2024 Reduced −100K −$6.5M −99.0% 1K Nov 14, 2024
Q2 2024 Reduced −2.0M −$138M −95.2% 101K Aug 14, 2024
Q1 2024 Added +30K +$2.0M +1.4% 2.1M May 15, 2024
Q4 2023 Added +351K +$24M +20.0% 2.1M Feb 14, 2024
Q3 2023 Added +1.4M +$87M +348.7% 1.8M Nov 14, 2023
Q2 2023 Reduced −1.1M −$70M −73.5% 391K Aug 14, 2023
Q1 2023 Reduced −209K −$15M −12.4% 1.5M May 15, 2023
Q4 2022 Added +713K +$45M +73.3% 1.7M Feb 14, 2023
Q3 2022 Added +832K +$48M +594.2% 973K Nov 14, 2022
Q2 2022 Reduced −96K −$6.9M −40.8% 140K Aug 15, 2022
Q1 2022 Reduced −926K −$70M −79.7% 237K May 16, 2022
Q4 2021 Reduced −71K −$4.6M −5.8% 1.2M Feb 14, 2022
Q3 2021 Added +861K +$67M +230.6% 1.2M Nov 15, 2021
Q2 2021 Reduced −241K −$21M −39.2% 373K Aug 16, 2021
Q1 2021 First covered – – – 614K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

More Griffin positions

NVIDIA Corporation(NVDA)
$3.2B
2.3% of portfolio

Amazon.com, Inc.(AMZN)
$1.7B
1.2% of portfolio

Micron Technology, Inc.(MU)
$1.6B
1.1% of portfolio

Taiwan Semiconductor Manufacturing Company Limited(TSM)
$1.4B
1.0% of portfolio

Apple Inc.(AAPL)
$1.3B
0.9% of portfolio

Meta Platforms, Inc.(META)
$1.0B
0.7% of portfolio

Common questions

Does Ken Griffin own RIO?

Yes. As of Q1 2026, Ken Griffin disclosed 255K shares of RIO, worth $24M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy RIO?

Ken Griffin held RIO since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell RIO?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in RIO. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of RIO does Ken Griffin own?

Ken Griffin disclosed 255K shares of RIO as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for RIO?

Ken Griffin began building the RIO position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.