Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
309 institutional managers reported holding MGEE for the quarter ended Mar 31, 2026. Together they hold about 59% of shares outstanding; the top 10 hold 42%. 40 opened new positions; 41 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 5.46M | 14.91% | $420.9M | trimmed -4.5% | ≤2013 |
| Vanguard Group | 4.63M | 12.64% | $356.8M | added +1.6% | ≤2013 |
| State Street | 1.92M | 5.24% | $147.9M | added +1.3% | ≤2013 |
| Geode Capital | 925.8k | 2.53% | $71.4M | unchanged | ≤2013 |
| Dimensional Fund Advisors | 684.3k | 1.87% | $52.8M | unchanged | ≤2013 |
| First Trust Advisors LP | 446.9k | 1.22% | $34.5M | trimmed -2% | ≤2013 |
| Charles Schwab Investment Management | 418.2k | 1.14% | $32.2M | trimmed -0.8% | ≤2013 |
| Northern Trust | 360.8k | 0.98% | $27.8M | added +2.5% | ≤2013 |
| Qube Research & Technologies LTD | 330.0k | 0.90% | $25.4M | added +25.2% | 2023 Q4 |
| BNY Mellon | 320.4k | 0.88% | $24.7M | added +0.6% | ≤2013 |
| Morgan Stanley | 306.4k | 0.84% | $23.6M | trimmed -6.8% | ≤2013 |
| Deprince Race & Zollo INC | 277.1k | 0.76% | $21.4M | opened | 2026 Q1 |
| GAMCO (Gabelli) | 271.2k | 0.74% | $20.9M | unchanged | ≤2013 |
| Goldman Sachs | 226.5k | 0.62% | $17.5M | added +4.8% | ≤2013 |
| Silvercrest Asset Management Group LLC | 221.3k | 0.60% | $17.1M | trimmed -14.6% | ≤2013 |
| Speece Thorson Capital Group INC (focused) | 189.5k | 0.52% | $14.6M | trimmed -3.1% | 2023 Q4 |
| Nuveen | 185.5k | 0.51% | $14.3M | added +16.3% | 2019 Q2 |
| Legal & General Group PLC | 182.5k | 0.50% | $14.1M | trimmed -9.4% | ≤2013 |
| Principal Financial Group INC | 178.2k | 0.49% | $13.7M | added +2.1% | 2019 Q3 |
| Millennium Management | 169.6k | 0.46% | $13.1M | added +156.2% | 2023 Q4 |
| Two Sigma | 169.1k | 0.46% | $13.0M | added +101.8% | 2023 Q3 |
| Tudor Investment | 159.6k | 0.44% | $12.3M | added +51.9% | 2024 Q3 |
| Victory Capital Management INC | 134.4k | 0.37% | $10.4M | trimmed -81.4% | 2015 Q2 |
| Public Sector Pension Investment Board | 130.8k | 0.36% | $10.1M | added +3.4% | 2024 Q1 |
| UBS | 129.3k | 0.35% | $10.0M | trimmed -18.6% | ≤2013 |
| Arrowstreet Capital | 122.8k | 0.34% | $9.5M | added +12.5% | 2025 Q1 |
| Invesco | 116.2k | 0.32% | $9.0M | added +6.5% | ≤2013 |
| Bank OF America CORP /DE/ | 99.8k | 0.27% | $7.7M | added +50.2% | ≤2013 |
| Rhumbline Advisers | 85.6k | 0.23% | $6.6M | added +1.7% | ≤2013 |
| ProShare Advisors LLC | 83.4k | 0.23% | $6.4M | added +1.1% | 2017 Q4 |
| Jane Street | 80.2k | 0.22% | $6.2M | added +259.6% | 2021 Q2 |
| Point72 | 80.1k | 0.22% | $6.2M | opened | 2026 Q1 |
| Marshall Wace | 79.3k | 0.22% | $6.1M | added +6.3% | 2025 Q1 |
| Commonwealth OF Pennsylvania Public School Empls Retrmt SYS | 74.6k | 0.20% | $5.8M | unchanged | 2021 Q1 |
| Swiss National Bank | 72.0k | 0.20% | $5.6M | unchanged | ≤2013 |
| Renaissance Technologies | 67.6k | 0.18% | $5.2M | added +46% | 2025 Q1 |
| Ameriprise Financial INC | 67.4k | 0.18% | $5.2M | trimmed -1.9% | ≤2013 |
| Harbour Investments, INC. | 59.7k | 0.16% | $4.6M | added +26.7% | 2021 Q1 |
| T. Rowe Price | 53.7k | 0.15% | $4.1M | added +16.6% | ≤2013 |
| Deutsche Bank AG\ | 45.6k | 0.13% | $3.5M | added +8.4% | ≤2013 |
| Citadel Advisors | 44.9k | 0.12% | $3.5M | trimmed -12.1% | 2021 Q1 |
| Bank OF Montreal /CAN/ | 44.6k | 0.12% | $3.4M | added +40.4% | 2023 Q2 |
| AllianceBernstein | 40.3k | 0.11% | $3.1M | trimmed -6% | ≤2013 |
| Martingale Asset Management L P | 39.7k | 0.11% | $3.1M | added +46.7% | ≤2013 |
| Trexquant Investment LP | 39.4k | 0.11% | $3.0M | added +53.6% | 2025 Q2 |
| Commonwealth Equity Services, LLC | 39.1k | 0.11% | $3.0M | trimmed -3.1% | ≤2013 |
| US Bancorp \DE\ | 38.3k | 0.10% | $3.0M | trimmed -4.6% | ≤2013 |
| Prudential Financial INC | 37.2k | 0.10% | $2.9M | added +8.9% | 2016 Q2 |
| American Century Companies INC | 35.5k | 0.10% | $2.7M | added +118.3% | 2025 Q4 |
| California State Teachers Retirement System | 34.9k | 0.10% | $2.7M | trimmed -0.8% | ≤2013 |
Largest 50 of 309 shown; the full ranked, searchable register is at boothcheck.com/holders/MGEE. 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.