Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
563 institutional managers reported holding REG for the quarter ended Mar 31, 2026. Together they hold about 87% of shares outstanding; the top 10 hold 54%. 81 opened new positions; 53 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 27.87M | 15.22% | $2.11B | unchanged | ≤2013 |
| BlackRock | 20.72M | 11.31% | $1.57B | trimmed -2.8% | ≤2013 |
| State Street | 12.26M | 6.70% | $928.0M | trimmed -2.5% | ≤2013 |
| Principal Financial Group INC | 10.00M | 5.46% | $757.0M | added +10.3% | ≤2013 |
| T. Rowe Price | 8.87M | 4.84% | $671.1M | unchanged | ≤2013 |
| Geode Capital | 5.03M | 2.75% | $380.9M | added +2.4% | ≤2013 |
| Invesco | 4.10M | 2.24% | $310.0M | trimmed -3.9% | ≤2013 |
| Boston Partners | 3.75M | 2.05% | $283.8M | added +7.9% | ≤2013 |
| Northern Trust | 3.27M | 1.78% | $247.1M | added +22.9% | ≤2013 |
| APG Asset Management N.v. | 2.75M | 1.50% | $207.8M | added +26.3% | ≤2013 |
| Dimensional Fund Advisors | 2.67M | 1.46% | $201.9M | added +2.6% | ≤2013 |
| Charles Schwab Investment Management | 2.65M | 1.45% | $200.7M | added +3% | ≤2013 |
| Deutsche Bank AG\ | 2.57M | 1.40% | $194.1M | added +20.8% | 2013 Q3 |
| FMR (Fidelity) | 2.44M | 1.33% | $184.6M | trimmed -2.8% | 2017 Q1 |
| Morgan Stanley | 2.27M | 1.24% | $171.8M | added +5.9% | ≤2013 |
| UBS | 1.56M | 0.85% | $118.1M | added +34.2% | ≤2013 |
| Goldman Sachs | 1.46M | 0.80% | $110.5M | trimmed -19.1% | ≤2013 |
| Wellington Management | 1.45M | 0.79% | $109.4M | added +38.7% | 2022 Q4 |
| Legal & General Group PLC | 1.41M | 0.77% | $106.5M | trimmed -17.5% | ≤2013 |
| Hsbc Holdings PLC | 1.38M | 0.75% | $104.2M | added +6.7% | ≤2013 |
| BNY Mellon | 1.32M | 0.72% | $100.1M | trimmed -0.8% | ≤2013 |
| Prudential Financial INC | 1.31M | 0.72% | $99.4M | added +2.6% | ≤2013 |
| Cbre Investment Management Listed Real Assets LLC | 1.27M | 0.69% | $95.7M | trimmed -32.7% | ≤2013 |
| Amundi | 1.21M | 0.66% | $91.4M | trimmed -21.7% | 2017 Q4 |
| MFS Investment Management | 1.02M | 0.56% | $76.9M | trimmed -5.9% | 2025 Q3 |
| American Century Companies INC | 1.00M | 0.55% | $75.7M | added +8.7% | 2021 Q2 |
| Nuveen | 969.5k | 0.53% | $73.4M | trimmed -60% | ≤2013 |
| Citadel Advisors | 835.7k | 0.46% | $63.2M | added +922.8% | 2017 Q1 |
| PFA Pension, Forsikringsaktieselskab | 810.0k | 0.44% | $61.3M | unchanged | 2025 Q4 |
| Bank OF America CORP /DE/ | 719.5k | 0.39% | $54.4M | added +66.5% | ≤2013 |
| Barclays PLC | 676.7k | 0.37% | $51.2M | trimmed -19.3% | ≤2013 |
| BNP Paribas Financial Markets | 672.1k | 0.37% | $50.9M | added +1.8% | ≤2013 |
| Russell Investments Group, LTD. | 663.0k | 0.36% | $50.2M | added +14.9% | 2016 Q4 |
| AQR Capital | 602.3k | 0.33% | $45.6M | trimmed -28.5% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 598.6k | 0.33% | $45.3M | added +7.7% | ≤2013 |
| Quantinno Capital Management LP | 568.7k | 0.31% | $43.0M | added +36.4% | 2021 Q4 |
| CI Investments INC. | 557.2k | 0.30% | $42.2M | added +0.7% | 2021 Q3 |
| Renaissance Technologies | 549.7k | 0.30% | $41.6M | added +21.7% | 2014 Q4 |
| First Trust Advisors LP | 547.9k | 0.30% | $41.5M | trimmed -8.7% | ≤2013 |
| Swiss National Bank | 509.9k | 0.28% | $38.6M | added +7.9% | ≤2013 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 508.9k | 0.28% | $38.5M | added +20.8% | 2024 Q4 |
| Sumitomo Mitsui Trust Group, INC. | 484.7k | 0.27% | $36.7M | trimmed -9.4% | ≤2013 |
| GRS Advisors, LLC (focused) | 475.3k | 0.26% | $36.0M | trimmed -31.5% | 2025 Q4 |
| Robeco Institutional Asset Management B.v. | 465.0k | 0.25% | $35.2M | trimmed -17.3% | 2015 Q1 |
| Citigroup INC | 451.0k | 0.25% | $34.1M | added +34.7% | ≤2013 |
| Millennium Management | 450.6k | 0.25% | $34.1M | trimmed -45.6% | 2020 Q1 |
| CalPERS | 445.9k | 0.24% | $33.7M | trimmed -7.4% | ≤2013 |
| Aberdeen Group plc | 432.4k | 0.24% | $32.7M | trimmed -31.4% | 2017 Q3 |
| Neuberger Berman Group LLC | 418.7k | 0.23% | $31.7M | added +162.8% | ≤2013 |
| Rhumbline Advisers | 355.3k | 0.19% | $26.9M | trimmed -0.7% | ≤2013 |
Largest 50 of 563 shown; the full ranked, searchable register is at boothcheck.com/holders/REG. 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.