Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
381 institutional managers reported holding MYRG for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 47%. 75 opened new positions; 38 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 2.41M | 15.39% | $680.3M | added +0.6% | ≤2013 |
| Vanguard Group | 1.33M | 8.46% | $373.8M | added +4.7% | ≤2013 |
| Wellington Management | 644.3k | 4.11% | $181.7M | trimmed -36.9% | 2024 Q4 |
| State Street | 595.7k | 3.80% | $167.9M | added +2% | ≤2013 |
| Fisher Investments | 521.1k | 3.32% | $146.9M | added +10.5% | 2015 Q3 |
| Geode Capital | 433.8k | 2.77% | $122.3M | added +9.5% | ≤2013 |
| Dimensional Fund Advisors | 376.2k | 2.40% | $106.1M | added +2.8% | ≤2013 |
| Nomura Asset Management International INC. | 371.2k | 2.37% | $104.7M | trimmed -11.5% | 2025 Q1 |
| T. Rowe Price Investment Management, INC. | 306.0k | 1.95% | $86.3M | added +463.2% | 2023 Q4 |
| Principal Financial Group INC | 305.8k | 1.95% | $86.2M | trimmed -21.4% | 2015 Q2 |
| UBS | 305.0k | 1.95% | $86.0M | added +30.1% | ≤2013 |
| Goldman Sachs | 302.6k | 1.93% | $85.3M | added +2.1% | 2016 Q1 |
| MFS Investment Management | 273.4k | 1.74% | $77.1M | added +27.1% | 2025 Q4 |
| Invesco | 263.9k | 1.68% | $74.4M | trimmed -9.1% | ≤2013 |
| Driehaus Capital Management LLC | 238.2k | 1.52% | $67.2M | added +4.2% | 2025 Q2 |
| Capital Group (American Funds) | 219.2k | 1.40% | $61.8M | unchanged | 2023 Q4 |
| Charles Schwab Investment Management | 216.4k | 1.38% | $61.0M | trimmed -1% | ≤2013 |
| Westwood Holdings Group INC | 208.6k | 1.33% | $58.8M | added +14.7% | 2025 Q4 |
| Morgan Stanley | 208.1k | 1.33% | $58.7M | added +8.4% | ≤2013 |
| First Trust Advisors LP | 203.7k | 1.30% | $57.4M | added +23.5% | ≤2013 |
| American Century Companies INC | 200.0k | 1.28% | $56.4M | added +216.8% | 2020 Q2 |
| Northern Trust | 177.4k | 1.13% | $50.0M | added +1.3% | ≤2013 |
| Loomis Sayles & CO L P | 170.1k | 1.08% | $47.9M | trimmed -7.7% | 2025 Q3 |
| Neumeier Poma Investment Counsel LLC (focused) | 162.3k | 1.03% | $45.8M | trimmed -19.5% | 2021 Q2 |
| Mirae Asset Global Etfs Holdings LTD. | 156.5k | 1.00% | $44.1M | trimmed -20% | 2018 Q3 |
| Bank OF America CORP /DE/ | 140.6k | 0.90% | $39.6M | added +4.2% | ≤2013 |
| Hawk Ridge Capital Management LP (focused) | 129.9k | 0.83% | $36.6M | added +16.9% | 2024 Q4 |
| Next Century Growth Investors LLC | 129.6k | 0.83% | $36.5M | trimmed -2.2% | 2023 Q3 |
| BNY Mellon | 126.7k | 0.81% | $35.7M | trimmed -5.4% | ≤2013 |
| Townsend & Associates, INC | 108.4k | 0.69% | $30.6M | trimmed -6% | 2022 Q3 |
| Ameriprise Financial INC | 105.1k | 0.67% | $29.6M | trimmed -1.1% | 2015 Q1 |
| Arrowstreet Capital | 101.1k | 0.65% | $28.5M | added +220.5% | 2025 Q2 |
| Qube Research & Technologies LTD | 100.6k | 0.64% | $28.4M | added +137% | 2025 Q2 |
| Jacobs Levy Equity Management, INC | 98.7k | 0.63% | $27.8M | trimmed -22.2% | 2024 Q3 |
| Congress Asset Management CO | 97.3k | 0.62% | $27.4M | added +29.8% | 2024 Q2 |
| Royal Bank OF Canada | 89.2k | 0.57% | $25.1M | trimmed -11.4% | 2014 Q3 |
| Boston Partners | 81.8k | 0.52% | $23.1M | trimmed -31.8% | 2024 Q4 |
| T. Rowe Price | 81.0k | 0.52% | $22.8M | added +453.3% | 2013 Q3 |
| Algert Global LLC | 75.9k | 0.48% | $21.4M | trimmed -20% | 2023 Q1 |
| Lazard Asset Management LLC | 75.0k | 0.48% | $21.1M | added +699.1% | 2019 Q4 |
| TimesSquare Capital Management, LLC | 70.9k | 0.45% | $20.0M | trimmed -4.6% | 2024 Q2 |
| Man Group | 70.1k | 0.45% | $19.8M | added +72.9% | 2021 Q3 |
| Marshall Wace | 69.3k | 0.44% | $19.5M | added +513% | 2024 Q2 |
| Renaissance Technologies | 66.3k | 0.42% | $18.7M | trimmed -10.4% | 2025 Q2 |
| Two Sigma | 66.0k | 0.42% | $18.6M | trimmed -6% | 2022 Q3 |
| Public Sector Pension Investment Board | 65.6k | 0.42% | $18.5M | added +3.5% | 2015 Q2 |
| Corbyn Investment Management INC/MD | 60.8k | 0.39% | $17.2M | trimmed -12% | ≤2013 |
| Fact Capital, LP (focused) | 53.7k | 0.34% | $15.1M | unchanged | 2024 Q3 |
| Covalis Capital LLP | 53.5k | 0.34% | $15.1M | opened | 2026 Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 53.4k | 0.34% | $15.0M | added +13.4% | 2025 Q1 |
Largest 50 of 381 shown; the full ranked, searchable register is at boothcheck.com/holders/MYRG. 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.