Who owns 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-Q2 13F filings (latest filed 2026-09-02). 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
172 tracked funds added or opened RIO while 139 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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 0.5pp 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 2026-Q1 and 2026-Q2, across 919 tracked filers holding RIO, 473 increased or opened the position and 416 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 2026-Q1 and 2026-Q2 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 42
- TUDOR INVESTMENT CORP ET AL$24M
- Hudson Bay Capital Management LP$18M
- Capricorn Fund Managers Ltd$15M
- Optiver Holding B.V.$10M
- Nuveen, LLC$8M
- CAPSTONE INVESTMENT ADVISORS, LLC$8M
Full exits 67
- NATIXIS ADVISORS, LLC$163M
- TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY$51M
- HRT FINANCIAL LP$43M
- FIL Ltd$23M
- SG Americas Securities, LLC$19M
- Catalyst Funds Management Pty Ltd$16M
Largest adds
- Fisher Asset Management, LLC$84M
- GOLDMAN SACHS GROUP INC$79M
- JPMORGAN CHASE & CO$68M
- BNP PARIBAS FINANCIAL MARKETS$46M
- Qube Research & Technologies Ltd$44M
- TWO SIGMA INVESTMENTS, LP$40M
Largest trims
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$183M
- CITIGROUP INC$119M
- 1832 Asset Management L.P.$58M
- JANE STREET GROUP, LLC$37M
- Clearbridge Investments, LLC$30M
- UBS Group AG$23M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Fisher Asset Management, LLC added | 20,675,995 | $2.0B | 18.4% | 2026-Q2 |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | 10,931,820 | $1.0B | 9.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 9,490,536 | $901M | 8.4% | 2026-Q2 |
| MORGAN STANLEY trimmed | 4,853,229 | $461M | 4.3% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 4,074,849 | $387M | 3.6% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 3,373,160 | $320M | 3.0% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 2,795,979 | $265M | 2.5% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 2,552,552 | $241M | 2.3% | 2026-Q2 |
| BlackRock, Inc. added | 2,474,852 | $235M | 2.2% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC trimmed | 2,389,913 | $227M | 2.1% | 2026-Q2 |
| FMR LLC added | 2,316,374 | $220M | 2.1% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 2,178,976 | $207M | 1.9% | 2026-Q2 |
| Harding Loevner LP trimmed | 1,941,326 | $186M | 1.7% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 1,895,058 | $180M | 1.7% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 1,867,120 | $175M | 1.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,840,742 | $175M | 1.6% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 1,839,135 | $175M | 1.6% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,715,018 | $163M | 1.5% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,546,230 | $147M | 1.4% | 2026-Q2 |
| EARNEST PARTNERS LLC added | 1,445,246 | $137M | 1.3% | 2026-Q2 |
| Altshuler Shaham Ltd added | 1,344,000 | $128M | 1.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 1,220,341 | $116M | 1.1% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,214,600 | $115M | 1.1% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 1,177,030 | $112M | 1.0% | 2026-Q2 |
| Palliser Capital (UK) Ltd added | 1,066,331 | $101M | 0.9% | 2026-Q2 |
| UBS Group AG trimmed | 1,046,164 | $99M | 0.9% | 2026-Q2 |
| TODD ASSET MANAGEMENT LLC added | 876,896 | $83M | 0.8% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 848,854 | $81M | 0.8% | 2026-Q2 |
| MILFORD FUNDS LTD added | 800,895 | $76M | 0.7% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 776,435 | $74M | 0.7% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 738,131 | $70M | 0.7% | 2026-Q2 |
| Cullen Capital Management, LLC added | 684,440 | $65M | 0.6% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 676,254 | $64M | 0.6% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 631,284 | $60M | 0.6% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 597,611 | $57M | 0.5% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 581,219 | $55M | 0.5% | 2026-Q2 |
| LPL Financial LLC added | 572,797 | $54M | 0.5% | 2026-Q2 |
| Clearbridge Investments, LLC trimmed | 565,792 | $54M | 0.5% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 549,969 | $52M | 0.5% | 2026-Q2 |
| Creative Planning added | 548,276 | $52M | 0.5% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 545,990 | $52M | 0.5% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 529,665 | $50M | 0.5% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 524,602 | $50M | 0.5% | 2026-Q2 |
| CAPITAL ADVISORS INC/OK trimmed | 518,140 | $49M | 0.5% | 2026-Q2 |
| Pacific Heights Asset Management LLC added | 450,000 | $43M | 0.4% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 438,396 | $42M | 0.4% | 2026-Q2 |
| ABC ARBITRAGE SA added | 406,269 | $39M | 0.4% | 2026-Q2 |
| Aberdeen Group plc added | 405,574 | $39M | 0.4% | 2026-Q2 |
| BARCLAYS PLC trimmed | 403,503 | $38M | 0.4% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 402,007 | $44M | 0.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 359,321 | $34M | 0.3% | 2026-Q2 |
| SPX Gestao de Recursos Ltda added | 308,586 | $29M | 0.3% | 2026-Q2 |
| GABELLI FUNDS LLC added | 293,100 | $28M | 0.3% | 2026-Q2 |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 284,454 | $27M | 0.3% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 272,766 | $26M | 0.2% | 2026-Q2 |
| CITIGROUP INC trimmed | 269,331 | $26M | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 249,474 | $24M | 0.2% | 2026-Q2 |
| Capital Wealth Planning, LLC added | 249,132 | $24M | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP added | 246,018 | $23M | 0.2% | 2026-Q2 |
| CIDEL ASSET MANAGEMENT INC added | 241,718 | $23M | 0.2% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 238,909 | $23M | 0.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 231,969 | $22M | 0.2% | 2026-Q2 |
| ANCHOR CAPITAL ADVISORS LLC trimmed | 216,922 | $21M | 0.2% | 2026-Q2 |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. trimmed | 212,472 | $20M | 0.2% | 2026-Q2 |
| Cullen/Frost Bankers, Inc. added | 208,598 | $20M | 0.2% | 2026-Q2 |
| OLD MISSION CAPITAL LLC added | 208,104 | $20M | 0.2% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 206,076 | $20M | 0.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 202,627 | $19M | 0.2% | 2026-Q2 |
| Oak Harvest Investment Services added | 198,264 | $19M | 0.2% | 2026-Q2 |
| JENNISON ASSOCIATES LLC added | 195,469 | $19M | 0.2% | 2026-Q2 |
| SteelPeak Wealth, LLC added | 191,237 | $18M | 0.2% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 190,400 | $18M | 0.2% | 2026-Q2 |
| Hudson Bay Capital Management LP new | 190,000 | $18M | 0.2% | 2026-Q2 |
| FARALLON CAPITAL MANAGEMENT, L.L.C. added | 183,475 | $17M | 0.2% | 2026-Q2 |
| SCOTIA CAPITAL INC. added | 178,366 | $17M | 0.2% | 2026-Q2 |
| Cetera Investment Advisers trimmed | 175,125 | $17M | 0.2% | 2026-Q2 |
| Banco BTG Pactual S.A. added | 170,511 | $16M | 0.2% | 2026-Q2 |
| SCS Capital Management LLC trimmed | 168,218 | $16M | 0.1% | 2026-Q2 |
| Capricorn Fund Managers Ltd new | 160,275 | $15M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 158,824 | $15M | 0.1% | 2026-Q2 |
| Bell Bank added | 153,586 | $15M | 0.1% | 2026-Q2 |
| Old West Investment Management, LLC added | 145,736 | $14M | 0.1% | 2026-Q2 |
| Greenline Partners, LLC trimmed | 144,459 | $14M | 0.1% | 2026-Q2 |
| Bank of New York Mellon Corp added | 143,044 | $14M | 0.1% | 2026-Q2 |
| OPPENHEIMER ASSET MANAGEMENT INC. added | 140,941 | $13M | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 136,496 | $13M | 0.1% | 2026-Q2 |
| Sanctuary Advisors, LLC added | 132,412 | $13M | 0.1% | 2026-Q2 |
| LMR Partners LLP added | 131,949 | $13M | 0.1% | 2026-Q2 |
| Kapitalo Investimentos Ltda | 127,754 | $12M | 0.1% | 2026-Q2 |
| Segment Wealth Management, LLC added | 127,265 | $12M | 0.1% | 2026-Q2 |
| SATURNA CAPITAL CORP added | 120,886 | $12M | 0.1% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 120,199 | $11M | 0.1% | 2026-Q2 |
| Rockefeller Capital Management L.P. trimmed | 118,351 | $11M | 0.1% | 2026-Q2 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 118,009 | $11M | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 116,629 | $11M | 0.1% | 2026-Q2 |
| Tidal Investments LLC added | 115,936 | $11M | 0.1% | 2026-Q2 |
| Mariner, LLC added | 114,214 | $11M | 0.1% | 2026-Q2 |
| US BANCORP \DE\ added | 112,376 | $11M | 0.1% | 2026-Q2 |
| Moran Wealth Management, LLC trimmed | 112,035 | $11M | 0.1% | 2026-Q2 |
| Curi Capital, LLC added | 108,360 | $13M | 0.1% | 2026-Q2 |
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.