Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
524 institutional managers reported holding RBA for the quarter ended Mar 31, 2026. Together they hold about 94% of shares outstanding; the top 10 hold 49%. 56 opened new positions; 64 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 25.76M | 13.74% | $2.47B | added +1.7% | 2015 Q1 |
| BlackRock | 15.43M | 8.23% | $1.48B | added +2.7% | 2018 Q2 |
| MFS Investment Management | 11.24M | 6.00% | $1.08B | added +3.2% | 2016 Q3 |
| EdgePoint Investment Group INC. (focused) | 8.81M | 4.70% | $844.9M | added +14.4% | 2023 Q1 |
| FIL LTD | 6.25M | 3.33% | $598.8M | trimmed -27.7% | 2020 Q3 |
| State Street | 6.24M | 3.33% | $598.7M | trimmed -0.7% | 2023 Q1 |
| Geode Capital | 5.07M | 2.70% | $486.1M | added +1.4% | 2018 Q3 |
| Royal Bank OF Canada | 5.04M | 2.69% | $483.5M | added +13.3% | ≤2013 |
| Vontobel Holding LTD. | 4.42M | 2.36% | $423.6M | trimmed -3.5% | 2021 Q1 |
| Janus Henderson | 4.37M | 2.33% | $419.1M | added +7% | ≤2013 |
| T. Rowe Price Investment Management, INC. | 3.93M | 2.09% | $376.3M | added +140.3% | 2025 Q3 |
| Fiera Capital CORP | 3.69M | 1.97% | $354.0M | trimmed -11.2% | 2018 Q1 |
| 1832 Asset Management L.p. | 3.47M | 1.85% | $332.6M | trimmed -0.9% | 2025 Q3 |
| FMR (Fidelity) | 3.03M | 1.62% | $290.7M | trimmed -14.2% | 2017 Q1 |
| Bank OF Montreal /CAN/ | 2.53M | 1.35% | $242.2M | added +2.1% | ≤2013 |
| Cooke & Bieler LP | 2.50M | 1.33% | $239.9M | added +1.9% | 2023 Q1 |
| Adage Capital Partners GP, L.l.c. | 2.26M | 1.21% | $216.7M | added +323.5% | 2022 Q4 |
| Boston Partners | 2.20M | 1.17% | $210.7M | trimmed -15.5% | 2022 Q4 |
| Lazard Asset Management LLC | 2.19M | 1.17% | $210.1M | opened | 2026 Q1 |
| Invesco | 2.03M | 1.08% | $194.9M | trimmed -31% | ≤2013 |
| Caisse de depot et placement du Quebec | 1.93M | 1.03% | $184.9M | added +30.6% | 2023 Q1 |
| Raymond James Financial INC | 1.86M | 0.99% | $178.8M | trimmed -16.3% | ≤2013 |
| Wellington Management | 1.76M | 0.94% | $168.9M | trimmed -17.7% | 2021 Q2 |
| Beutel, Goodman & CO LTD. | 1.72M | 0.92% | $165.4M | trimmed -36.5% | 2021 Q3 |
| Charles Schwab Investment Management | 1.61M | 0.86% | $154.8M | added +4.5% | 2023 Q1 |
| Manufacturers Life Insurance Company, THE | 1.51M | 0.81% | $144.8M | trimmed -37.3% | 2015 Q2 |
| Bank OF America CORP /DE/ | 1.45M | 0.78% | $139.2M | added +7.8% | ≤2013 |
| Mackenzie Financial CORP | 1.40M | 0.75% | $134.1M | added +47.2% | ≤2013 |
| Canoe Financial LP | 1.37M | 0.73% | $131.0M | added +12.7% | 2023 Q3 |
| TD Asset Management INC | 1.32M | 0.70% | $126.6M | added +14.9% | ≤2013 |
| Northern Trust | 1.29M | 0.69% | $123.5M | trimmed -1.8% | ≤2013 |
| Riverbridge Partners LLC | 1.28M | 0.68% | $122.3M | trimmed -15.1% | ≤2013 |
| Ancora Advisors LLC | 1.23M | 0.66% | $117.7M | added +8.8% | 2020 Q3 |
| Samlyn Capital, LLC | 1.18M | 0.63% | $112.8M | trimmed -14.8% | 2025 Q1 |
| Connor, Clark & Lunn Investment Management LTD. | 1.12M | 0.60% | $107.6M | added +24% | 2015 Q2 |
| Cibc Asset Management INC | 1.06M | 0.56% | $101.4M | added +8.1% | 2013 Q4 |
| Bahl & Gaynor INC | 1.03M | 0.55% | $98.4M | opened | 2026 Q1 |
| BNY Mellon | 1.03M | 0.55% | $98.4M | trimmed -1.9% | ≤2013 |
| Legal & General Group PLC | 1.00M | 0.54% | $96.2M | unchanged | ≤2013 |
| Morgan Stanley | 970.4k | 0.52% | $93.0M | added +19.7% | ≤2013 |
| Dimensional Fund Advisors | 785.6k | 0.42% | $75.3M | added +8% | ≤2013 |
| BW Gestao de Investimentos Ltda. | 725.2k | 0.39% | $69.5M | trimmed -7.7% | 2022 Q4 |
| Goldman Sachs | 703.7k | 0.38% | $67.5M | added +6.9% | ≤2013 |
| Holocene Advisors | 697.3k | 0.37% | $66.9M | trimmed -16.9% | 2025 Q3 |
| ArrowMark Colorado Holdings LLC | 678.4k | 0.36% | $65.0M | added +31.3% | 2013 Q3 |
| UBS | 645.1k | 0.34% | $61.8M | added +0.8% | ≤2013 |
| Swiss National Bank | 624.9k | 0.33% | $59.9M | added +27% | ≤2013 |
| Cidel Asset Management INC | 599.8k | 0.32% | $57.5M | added +80.4% | 2021 Q2 |
| Blair William & CO/IL | 570.4k | 0.30% | $54.7M | trimmed -24.1% | ≤2013 |
| Westwood Holdings Group INC | 568.5k | 0.30% | $54.5M | opened | 2026 Q1 |
Largest 50 of 524 shown; the full ranked, searchable register is at boothcheck.com/holders/RBA. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.