Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
321 institutional managers reported holding MHO for the quarter ended Mar 31, 2026. Together they hold about 90% of shares outstanding; the top 10 hold 55%. 32 opened new positions; 43 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 4.76M | 17.92% | $582.1M | trimmed -2.2% | ≤2013 |
| Vanguard Group | 2.45M | 9.23% | $299.7M | trimmed -2.3% | ≤2013 |
| Donald Smith & CO., INC. | 1.49M | 5.61% | $182.2M | added +1.8% | ≤2013 |
| State Street | 1.26M | 4.74% | $154.0M | trimmed -5.8% | ≤2013 |
| FMR (Fidelity) | 1.22M | 4.59% | $149.2M | added +3.1% | 2016 Q3 |
| Dimensional Fund Advisors | 1.07M | 4.02% | $130.7M | trimmed -1.6% | ≤2013 |
| American Century Companies INC | 703.1k | 2.65% | $86.0M | trimmed -22.5% | 2020 Q4 |
| Geode Capital | 659.5k | 2.48% | $80.6M | added +2.9% | ≤2013 |
| Millennium Management | 540.8k | 2.04% | $66.1M | added +24.5% | ≤2013 |
| T. Rowe Price Investment Management, INC. | 480.5k | 1.81% | $58.8M | added +235.7% | 2025 Q3 |
| Franklin Resources | 465.0k | 1.75% | $56.9M | added +47.9% | ≤2013 |
| Goldman Sachs | 436.2k | 1.64% | $53.3M | trimmed -6.6% | ≤2013 |
| Invesco | 435.0k | 1.64% | $53.2M | added +79.6% | ≤2013 |
| Royce & Associates | 369.3k | 1.39% | $45.2M | added +13.1% | 2021 Q4 |
| Junto Capital Management LP | 328.3k | 1.24% | $40.1M | added +20.5% | 2025 Q3 |
| Charles Schwab Investment Management | 319.8k | 1.20% | $39.1M | added +1.4% | ≤2013 |
| Northern Trust | 308.4k | 1.16% | $37.7M | added +3.1% | ≤2013 |
| Nomura Asset Management International INC. | 304.3k | 1.15% | $37.2M | trimmed -1.6% | 2025 Q4 |
| Morgan Stanley | 256.1k | 0.96% | $31.3M | trimmed -5% | ≤2013 |
| MFS Investment Management | 243.0k | 0.92% | $29.7M | trimmed -5% | 2025 Q2 |
| Barclays PLC | 201.3k | 0.76% | $24.6M | added +7.2% | ≤2013 |
| BNY Mellon | 186.0k | 0.70% | $22.7M | trimmed -3.8% | ≤2013 |
| Qube Research & Technologies LTD | 169.9k | 0.64% | $20.8M | trimmed -19.6% | 2023 Q3 |
| Victory Capital Management INC | 160.5k | 0.60% | $19.6M | added +1520.8% | 2014 Q4 |
| Squarepoint Ops LLC | 155.8k | 0.59% | $19.1M | added +36.5% | 2024 Q4 |
| Bank OF America CORP /DE/ | 146.4k | 0.55% | $17.9M | trimmed -4.8% | ≤2013 |
| Frontier Capital Management CO LLC | 144.7k | 0.55% | $17.7M | added +2.4% | 2025 Q3 |
| Principal Financial Group INC | 141.4k | 0.53% | $17.3M | trimmed -3.9% | ≤2013 |
| Basswood Capital Management, L.l.c. | 137.1k | 0.52% | $16.8M | trimmed -7.9% | 2017 Q3 |
| Gradient Investments LLC | 120.0k | 0.45% | $14.7M | added +4.6% | 2025 Q2 |
| Assenagon Asset Management S.a. | 115.7k | 0.43% | $14.1M | added +7.2% | 2020 Q4 |
| Public Sector Pension Investment Board | 110.1k | 0.41% | $13.5M | added +2.6% | ≤2013 |
| UBS | 106.5k | 0.40% | $13.0M | trimmed -19.3% | ≤2013 |
| Nuveen | 102.1k | 0.38% | $12.5M | added +10.1% | 2017 Q3 |
| D. E. Shaw | 97.0k | 0.36% | $11.9M | added +161.3% | 2023 Q3 |
| William Blair Investment Management, LLC | 95.1k | 0.36% | $11.6M | opened | 2026 Q1 |
| Two Sigma | 95.1k | 0.36% | $11.6M | trimmed -47.5% | 2020 Q4 |
| Janus Henderson | 93.4k | 0.35% | $11.4M | unchanged | 2020 Q3 |
| BNP Paribas Financial Markets | 89.0k | 0.34% | $10.9M | trimmed -9% | 2014 Q2 |
| AQR Capital | 81.7k | 0.31% | $10.0M | added +19.5% | 2016 Q4 |
| Systematic Financial Management LP | 81.2k | 0.31% | $9.9M | added +4.2% | 2025 Q4 |
| Rhumbline Advisers | 81.1k | 0.30% | $9.9M | added +1.6% | ≤2013 |
| Steamboat Capital Partners, LLC | 76.5k | 0.29% | $9.4M | trimmed -0.6% | 2023 Q1 |
| Oberweis Asset Management INC/ | 76.4k | 0.29% | $9.3M | added +1.9% | 2019 Q4 |
| Nordea Investment Management AB | 73.8k | 0.28% | $9.0M | trimmed -4.8% | 2020 Q3 |
| Edgestream Partners, L.p. | 72.1k | 0.27% | $8.8M | opened | 2023 Q4 |
| Capelight Capital Asset Management LP (focused) | 70.0k | 0.26% | $8.6M | added +27.3% | 2025 Q4 |
| De Lisle Partners LLP | 66.4k | 0.25% | $8.1M | trimmed -11% | 2024 Q1 |
| Algert Global LLC | 65.1k | 0.24% | $8.0M | trimmed -34.9% | 2022 Q1 |
| Ameriprise Financial INC | 62.6k | 0.24% | $7.7M | added +9.9% | ≤2013 |
Largest 50 of 321 shown; the full ranked, searchable register is at boothcheck.com/holders/MHO. 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.