Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
473 institutional managers reported holding ECG for the quarter ended Mar 31, 2026. Together they hold about 83% of shares outstanding; the top 10 hold 44%. 75 opened new positions; 52 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 6.09M | 11.90% | $719.7M | unchanged | 2024 Q4 |
| Vanguard Group | 5.27M | 10.30% | $623.3M | added +1.7% | 2024 Q4 |
| Wasatch Advisors LP | 3.02M | 5.89% | $356.5M | added +39.7% | 2025 Q4 |
| State Street | 1.62M | 3.16% | $191.1M | added +2.8% | 2024 Q4 |
| First Trust Advisors LP | 1.28M | 2.50% | $151.4M | added +109.9% | 2024 Q4 |
| Geode Capital | 1.18M | 2.30% | $138.9M | added +2.3% | 2024 Q4 |
| Capital International Investors | 1.11M | 2.18% | $131.7M | trimmed -42.4% | 2025 Q3 |
| Dimensional Fund Advisors | 1.11M | 2.16% | $130.6M | added +1% | 2024 Q4 |
| Earnest Partners LLC | 961.2k | 1.88% | $113.6M | trimmed -2.8% | 2025 Q2 |
| Invesco | 956.6k | 1.87% | $113.0M | trimmed -22.4% | 2024 Q4 |
| Fuller & Thaler Asset Management, INC. | 771.8k | 1.51% | $91.2M | opened | 2026 Q1 |
| Forest Avenue Capital Management LP (focused) | 715.3k | 1.40% | $84.5M | opened | 2026 Q1 |
| AllianceBernstein | 676.6k | 1.32% | $80.0M | trimmed -19% | 2024 Q4 |
| Morgan Stanley | 665.3k | 1.30% | $78.6M | trimmed -27.3% | 2024 Q4 |
| Westwood Holdings Group INC | 636.0k | 1.24% | $75.2M | trimmed -22.3% | 2025 Q1 |
| Capital Group (American Funds) | 614.3k | 1.20% | $72.6M | opened | 2026 Q1 |
| Millennium Management | 565.5k | 1.10% | $66.8M | trimmed -12% | 2024 Q4 |
| Charles Schwab Investment Management | 546.2k | 1.07% | $64.5M | trimmed -1% | 2024 Q4 |
| Driehaus Capital Management LLC | 515.8k | 1.01% | $60.9M | trimmed -13.2% | 2025 Q3 |
| Loomis Sayles & CO L P | 430.5k | 0.84% | $50.9M | trimmed -7.7% | 2024 Q4 |
| D. E. Shaw | 421.7k | 0.82% | $49.8M | added +832.7% | 2025 Q2 |
| Northern Trust | 410.3k | 0.80% | $48.5M | trimmed -2.2% | 2024 Q4 |
| Mirae Asset Global Etfs Holdings LTD. | 405.4k | 0.79% | $47.9M | opened | 2026 Q1 |
| US Bancorp \DE\ | 392.4k | 0.77% | $46.4M | trimmed -3.7% | 2024 Q4 |
| UBS | 387.3k | 0.76% | $45.8M | trimmed -37.5% | 2024 Q4 |
| Goldman Sachs | 376.1k | 0.73% | $44.4M | added +116.5% | 2024 Q4 |
| De Lisle Partners LLP | 367.4k | 0.72% | $43.4M | unchanged | 2024 Q4 |
| Oberweis Asset Management INC/ | 326.5k | 0.64% | $38.6M | added +25.7% | 2025 Q2 |
| Swedbank Robur | 300.0k | 0.59% | $35.4M | trimmed -16.7% | 2024 Q4 |
| BNY Mellon | 275.9k | 0.54% | $32.6M | trimmed -1.7% | 2024 Q4 |
| Teacher Retirement System OF Texas | 265.9k | 0.52% | $31.4M | added +115.5% | 2024 Q4 |
| Aberdeen Group plc | 257.7k | 0.50% | $30.5M | added +30.3% | 2025 Q3 |
| Principal Financial Group INC | 247.2k | 0.48% | $29.2M | added +2% | 2024 Q4 |
| AQR Capital | 232.4k | 0.45% | $27.5M | added +597.8% | 2024 Q4 |
| American Century Companies INC | 201.3k | 0.39% | $23.8M | trimmed -53.6% | 2024 Q4 |
| Clearfield Capital Management LP (focused) | 197.7k | 0.39% | $23.4M | unchanged | 2025 Q1 |
| Nuveen | 195.6k | 0.38% | $23.1M | trimmed -1.7% | 2024 Q4 |
| Handelsbanken Fonder AB | 189.0k | 0.37% | $22.3M | trimmed -49.6% | 2024 Q4 |
| Public Sector Pension Investment Board | 182.5k | 0.36% | $21.6M | added +3.4% | 2024 Q4 |
| SEI Investments CO | 181.4k | 0.35% | $21.4M | added +27.1% | 2024 Q4 |
| Gotham Asset Management | 170.0k | 0.33% | $20.1M | added +38.5% | 2024 Q4 |
| Qube Research & Technologies LTD | 169.8k | 0.33% | $20.1M | added +243.4% | 2025 Q4 |
| Baird Financial Group, INC. | 154.2k | 0.30% | $18.2M | trimmed -12% | 2024 Q4 |
| BNP Paribas Financial Markets | 152.4k | 0.30% | $18.0M | added +98.9% | 2024 Q4 |
| Renaissance Technologies | 148.4k | 0.29% | $17.5M | added +234.2% | 2025 Q1 |
| Bank OF America CORP /DE/ | 144.7k | 0.28% | $17.1M | added +30.5% | 2024 Q4 |
| Frontier Capital Management CO LLC | 143.5k | 0.28% | $17.0M | trimmed -19.3% | 2024 Q4 |
| Voloridge Investment Management | 136.1k | 0.27% | $16.1M | opened | 2026 Q1 |
| Barclays PLC | 132.9k | 0.26% | $15.7M | added +5.1% | 2024 Q4 |
| Needham Investment Management LLC | 126.5k | 0.25% | $14.9M | unchanged | 2024 Q4 |
Largest 50 of 473 shown; the full ranked, searchable register is at boothcheck.com/holders/ECG. 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.