Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
RIO
RIO TINTO PLC-SPON ADRData as of 2026 Q1 (03-31) · 13F snapshot
Summary
RIO TINTO PLC-SPON ADR (RIO) is held by 8 tracked hedge-fund managers, a combined reported value of ~$337.39M; the largest are Ken Griffin, Renaissance Technologies, Ken Griffin. This quarter: 2 added, 2 trimmed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding8
Congress trades20
Price$105.35vs quarter-end+12.93%
Sectors0
This quarter's moves
Top holderKen GriffinNew0
Added2
Trimmed / sold2
Value $103.75M— of portfolio1,112,1002026 Q1
Value $31.67M— of portfolio339,5002026 Q1
Dan LoebNew large stake
Value $21.50M1.1% of portfolio300,0002010 Q4
Value $10.29M— of portfolio150,0002023 Q1
Value $9.14M— of portfolio98,0002026 Q1
Value $8.33M— of portfolio89,3002026 Q1
Value $1.92M— of portfolio20,6002026 Q1
Joel GreenblattHold
Value $1.30M0.0% of portfolio13,9602026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $103.75M | — | — |
| Ken GriffinPUT | $31.67M | — | — |
| Dan Loeb | $21.50M | 1.1% | New large stake |
| Steven CohenPUT | $10.29M | — | — |
| Izzy EnglanderCALL | $9.14M | — | — |
| Izzy EnglanderPUT | $8.33M | — | — |
| Steven CohenCALL | $1.92M | — | — |
| Joel Greenblatt | $1.30M | 0.0% | Hold |