Who owns RIO (RIO)
Which tracked institutional funds hold RIO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RIO company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on RIO is one-sided between 2025-Q4 and 2026-Q1: 301 added or opened and 100 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
RIO’s largest tracked holder by dollar value, Fisher Asset Management, LLC, sizes it at 0.6% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.6pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in RIO divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 934 tracked filers holding RIO, 492 increased or opened the position and 368 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in RIO between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 45
- Altshuler Shaham Ltd$107M
- JANE STREET GROUP, LLC$94M
- Clearbridge Investments, LLC$83M
- Segment Wealth Management, LLC$12M
- XTX Topco Ltd$10M
- Deltroit Asset Management (UK) LLP$10M
Full exits 44
- MANGROVE PARTNERS IM, LLC$80M
- AQR Arbitrage LLC$43M
- Balyasny Asset Management L.P.$22M
- Engineers Gate Manager LP$20M
- TUDOR INVESTMENT CORP ET AL$14M
- Yaupon Capital Management LP$12M
Largest adds
- Fisher Asset Management, LLC$306M
- JONES FINANCIAL COMPANIES LLLP$146M
- STATE FARM MUTUAL AUTOMOBILE INSURANCE CO$145M
- RENAISSANCE TECHNOLOGIES LLC$75M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$72M
- BANK OF AMERICA CORP /DE/$66M
Largest trims
- DEUTSCHE BANK AG\$118M
- GOLDMAN SACHS GROUP INC$55M
- NATIONAL BANK OF CANADA /FI/$45M
- CITADEL ADVISORS LLC$41M
- Capital International Investors$39M
- FRANKLIN RESOURCES INC$39M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Fisher Asset Management, LLC added | 20,135,992 | $1.9B | 16.7% | 2026-Q1 |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | 10,931,820 | $1.0B | 9.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 8,813,988 | $822M | 7.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 4,889,374 | $456M | 4.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 4,237,751 | $395M | 3.5% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 3,710,224 | $346M | 3.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 3,623,294 | $338M | 3.0% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 2,454,902 | $229M | 2.0% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 2,377,304 | $222M | 2.0% | 2026-Q1 |
| FMR LLC added | 2,180,186 | $203M | 1.8% | 2026-Q1 |
| BlackRock, Inc. added | 2,108,295 | $197M | 1.7% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 2,056,347 | $192M | 1.7% | 2026-Q1 |
| Grantham, Mayo, Van Otterloo & Co. LLC added | 2,004,837 | $187M | 1.7% | 2026-Q1 |
| Harding Loevner LP trimmed | 1,971,227 | $184M | 1.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,949,753 | $173M | 1.5% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,839,582 | $172M | 1.5% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 1,748,965 | $163M | 1.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,682,927 | $157M | 1.4% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP added | 1,725,801 | $150M | 1.3% | 2026-Q1 |
| CITIGROUP INC added | 1,544,579 | $144M | 1.3% | 2026-Q1 |
| EARNEST PARTNERS LLC trimmed | 1,442,986 | $135M | 1.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,436,275 | $134M | 1.2% | 2026-Q1 |
| UBS Group AG added | 1,311,639 | $122M | 1.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 1,302,179 | $121M | 1.1% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 1,199,010 | $112M | 1.0% | 2026-Q1 |
| Altshuler Shaham Ltd new | 1,144,000 | $107M | 0.9% | 2026-Q1 |
| Palliser Capital (UK) Ltd trimmed | 1,037,233 | $97M | 0.9% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 1,003,425 | $94M | 0.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 965,800 | $90M | 0.8% | 2026-Q1 |
| Clearbridge Investments, LLC added | 892,474 | $83M | 0.7% | 2026-Q1 |
| TODD ASSET MANAGEMENT LLC trimmed | 874,659 | $82M | 0.7% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 871,668 | $81M | 0.7% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 838,415 | $78M | 0.7% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 784,232 | $73M | 0.6% | 2026-Q1 |
| MILFORD FUNDS LTD trimmed | 671,339 | $63M | 0.6% | 2026-Q1 |
| Cullen Capital Management, LLC added | 656,864 | $61M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 641,205 | $60M | 0.5% | 2026-Q1 |
| 1832 Asset Management L.P. added | 640,080 | $60M | 0.5% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 624,596 | $58M | 0.5% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 595,530 | $56M | 0.5% | 2026-Q1 |
| SEI INVESTMENTS CO added | 564,191 | $53M | 0.5% | 2026-Q1 |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY trimmed | 545,770 | $51M | 0.5% | 2026-Q1 |
| CAPITAL ADVISORS INC/OK added | 529,596 | $49M | 0.4% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 524,602 | $49M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 519,977 | $49M | 0.4% | 2026-Q1 |
| LPL Financial LLC added | 514,691 | $48M | 0.4% | 2026-Q1 |
| Creative Planning added | 505,442 | $47M | 0.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 460,035 | $43M | 0.4% | 2026-Q1 |
| BARCLAYS PLC added | 453,897 | $42M | 0.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 443,751 | $41M | 0.4% | 2026-Q1 |
| Pacific Heights Asset Management LLC | 425,000 | $40M | 0.4% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 368,340 | $39M | 0.3% | 2026-Q1 |
| Aberdeen Group plc trimmed | 403,172 | $38M | 0.3% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 287,629 | $27M | 0.2% | 2026-Q1 |
| ABC ARBITRAGE SA trimmed | 279,807 | $26M | 0.2% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 276,300 | $26M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 254,948 | $24M | 0.2% | 2026-Q1 |
| FIL Ltd added | 246,237 | $23M | 0.2% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 240,622 | $22M | 0.2% | 2026-Q1 |
| ANCHOR CAPITAL ADVISORS LLC added | 234,303 | $22M | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 234,226 | $22M | 0.2% | 2026-Q1 |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. added | 212,538 | $20M | 0.2% | 2026-Q1 |
| SG Americas Securities, LLC added | 206,862 | $19M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 200,280 | $19M | 0.2% | 2026-Q1 |
| Oak Harvest Investment Services added | 197,554 | $18M | 0.2% | 2026-Q1 |
| SteelPeak Wealth, LLC trimmed | 191,195 | $18M | 0.2% | 2026-Q1 |
| Cullen/Frost Bankers, Inc. added | 195,769 | $18M | 0.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 194,311 | $18M | 0.2% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 192,748 | $18M | 0.2% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 186,490 | $17M | 0.2% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP trimmed | 185,375 | $17M | 0.2% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 183,998 | $17M | 0.2% | 2026-Q1 |
| Cetera Investment Advisers added | 181,852 | $17M | 0.2% | 2026-Q1 |
| Catalyst Funds Management Pty Ltd trimmed | 175,307 | $16M | 0.1% | 2026-Q1 |
| SCS Capital Management LLC added | 170,697 | $16M | 0.1% | 2026-Q1 |
| SCOTIA CAPITAL INC. added | 172,289 | $16M | 0.1% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 170,402 | $16M | 0.1% | 2026-Q1 |
| Bell Bank trimmed | 149,635 | $14M | 0.1% | 2026-Q1 |
| Capital Wealth Planning, LLC added | 145,308 | $14M | 0.1% | 2026-Q1 |
| Greenline Partners, LLC added | 144,834 | $14M | 0.1% | 2026-Q1 |
| OPPENHEIMER ASSET MANAGEMENT INC. added | 140,494 | $13M | 0.1% | 2026-Q1 |
| COHEN & STEERS, INC. added | 137,879 | $13M | 0.1% | 2026-Q1 |
| Bank of New York Mellon Corp added | 137,651 | $13M | 0.1% | 2026-Q1 |
| Foresight Global Investors, Inc. trimmed | 133,534 | $12M | 0.1% | 2026-Q1 |
| QSM Asset Management Ltd trimmed | 135,057 | $12M | 0.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 129,867 | $12M | 0.1% | 2026-Q1 |
| Kapitalo Investimentos Ltda | 127,754 | $12M | 0.1% | 2026-Q1 |
| Sanctuary Advisors, LLC added | 126,914 | $12M | 0.1% | 2026-Q1 |
| Capital World Investors added | 2,848,540 | $166M | 1.5% | 2025-Q2 stale |
| Journey Advisory Group, LLC trimmed | 2,459,471 | $162M | 1.4% | 2025-Q3 stale |
| MANGROVE PARTNERS IM, LLC | 998,661 | $80M | 0.7% | 2025-Q4 stale |
| Optiver Holding B.V. added | 669,251 | $44M | 0.4% | 2025-Q3 stale |
| AQR Arbitrage LLC added | 536,093 | $43M | 0.4% | 2025-Q4 stale |
| Pacer Advisors, Inc. added | 659,378 | $40M | 0.4% | 2025-Q1 stale |
| MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH trimmed | 591,311 | $36M | 0.3% | 2025-Q1 stale |
| SALT Holding Corp. | 396,278 | $24M | 0.2% | 2025-Q1 stale |
| Balyasny Asset Management L.P. added | 272,368 | $22M | 0.2% | 2025-Q4 stale |
| Engineers Gate Manager LP trimmed | 249,356 | $20M | 0.2% | 2025-Q4 stale |
| TUDOR INVESTMENT CORP ET AL added | 172,801 | $14M | 0.1% | 2025-Q4 stale |
| Yaupon Capital Management LP added | 152,955 | $12M | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.