Rio Tinto
RIO
782 hedge funds and large institutions have $8.01B invested in Rio Tinto in 2025 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 308 increasing their positions, 233 reducing their positions, and 63 closing their positions.
62% more first-time investments, than exits
New positions opened: 102 | Existing positions closed: 63
45% more funds holding in top 10
Funds holding in top 10: 11 → 16 (+5)
32% more repeat investments, than reductions
Existing positions increased: 308 | Existing positions reduced: 233
13% more call options, than puts
Call options by funds: $526M | Put options by funds: $464M
4% more funds holding
Funds holding: 755 → 782 (+27)
4% more capital invested
Capital invested by funds: $7.72B → $8.01B (+$290M)
0.43% more ownership
Funds ownership: 10.47% → 10.9% (+0.43%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AOI
Auto-Owners Insurance
Lansing,
Michigan
|
+$456M |
| 2 |
JAG
Journey Advisory Group
Covington,
Kentucky
|
+$158M |
| 3 |
MP
Mangrove Partners
Greenwich,
Connecticut
|
+$46.1M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$35.3M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$32M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$220M |
| 2 |
UBS Group
Zurich,
Switzerland
|
-$93.6M |
| 3 |
Morgan Stanley
New York
|
-$74.7M |
| 4 |
BNP Paribas Financial Markets
Paris,
France
|
-$67.6M |
| 5 |
PP
Paloma Partners
Greenwich,
Connecticut
|
-$40M |
RIO Hedge Fund Activity: Q1 2025 in Review
782 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Rio Tinto (RIO) for Q1 2025, worth a combined $8.01B — up 3.8% from $7.72B a quarter earlier.
Buyers outnumbered sellers: 102 funds opened new RIO positions and 63 closed out — a net gain of 39 holders — while 308 added to existing stakes and 233 trimmed.
The largest buyer was Auto-Owners Insurance, adding an estimated $456M. The largest seller was Wellington Management Group, cutting an estimated $220M.
- 782 institutional investors held Rio Tinto (RIO) as of Q1 2025, up from 755 in Q4 2024.
- Funds reported $8.01B of Rio Tinto stock for Q1 2025, up 3.8% quarter-over-quarter.
- 102 funds opened new Rio Tinto positions in Q1 2025 and 63 closed out, a net change of +39 holders.
- The largest Rio Tinto buyer in Q1 2025 was Auto-Owners Insurance, an estimated $456M added.
- The largest Rio Tinto seller in Q1 2025 was Wellington Management Group, an estimated $220M sold.
Based on aggregated 13F filings for Q1 2025.