Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
697 institutional managers reported holding MLI for the quarter ended Mar 31, 2026. Together they hold about 44% of shares outstanding; the top 10 hold 22%. 114 opened new positions; 90 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 11.64M | 5.25% | $644.5M | unchanged | ≤2013 |
| Vanguard Group | 10.76M | 4.85% | $595.8M | added +2.1% | ≤2013 |
| First Trust Advisors LP | 5.59M | 2.52% | $309.9M | added +0.6% | ≤2013 |
| AQR Capital | 4.88M | 2.20% | $270.2M | added +20.3% | 2019 Q2 |
| State Street | 3.50M | 1.58% | $193.9M | added +4.2% | ≤2013 |
| Geode Capital | 2.99M | 1.35% | $165.5M | added +13.1% | ≤2013 |
| Goldman Sachs | 2.26M | 1.02% | $125.1M | trimmed -10.6% | ≤2013 |
| Dimensional Fund Advisors | 2.18M | 0.98% | $120.9M | trimmed -23.4% | ≤2013 |
| William Blair Investment Management, LLC | 2.11M | 0.95% | $116.9M | added +18.5% | 2024 Q4 |
| Allspring Global Investments Holdings, LLC | 2.05M | 0.92% | $113.3M | trimmed -15.7% | 2021 Q4 |
| Invesco | 2.01M | 0.90% | $111.1M | added +35.2% | ≤2013 |
| FMR (Fidelity) | 1.81M | 0.81% | $100.0M | added +54% | 2013 Q4 |
| Pictet Asset Management Holding SA | 1.67M | 0.76% | $92.8M | added +136.5% | 2022 Q3 |
| Gamco Investors, INC. et al | 1.64M | 0.74% | $90.7M | trimmed -12.3% | ≤2013 |
| Arrowstreet Capital | 1.53M | 0.69% | $84.6M | trimmed -2.3% | 2019 Q1 |
| T. Rowe Price | 1.49M | 0.67% | $82.6M | added +55.2% | ≤2013 |
| LSV Asset Management | 1.46M | 0.66% | $80.9M | trimmed -6.9% | 2021 Q1 |
| Morgan Stanley | 1.28M | 0.58% | $71.0M | trimmed -22.8% | ≤2013 |
| GAMCO (Gabelli) | 1.23M | 0.56% | $68.2M | trimmed -8.8% | ≤2013 |
| UBS | 1.21M | 0.55% | $67.2M | added +30.4% | ≤2013 |
| Charles Schwab Investment Management | 1.14M | 0.51% | $63.0M | added +2% | ≤2013 |
| BNY Mellon | 1.02M | 0.46% | $56.6M | unchanged | ≤2013 |
| Northern Trust | 927.3k | 0.42% | $51.4M | added +2.3% | ≤2013 |
| American Century Companies INC | 835.3k | 0.38% | $46.3M | trimmed -31.8% | 2019 Q3 |
| Mirae Asset Global Etfs Holdings LTD. | 816.6k | 0.37% | $45.2M | added +5.5% | 2018 Q3 |
| Systematic Financial Management LP | 784.7k | 0.35% | $43.5M | trimmed -4.2% | ≤2013 |
| Vaughan Nelson Investment Management, L.p. | 702.1k | 0.32% | $38.9M | added +18.6% | 2025 Q3 |
| Janus Henderson | 676.1k | 0.30% | $37.4M | added +11.6% | 2021 Q3 |
| Caisse de depot et placement du Quebec | 665.4k | 0.30% | $36.9M | trimmed -4.6% | 2023 Q4 |
| Vest Financial, LLC | 635.1k | 0.29% | $35.2M | added +4.7% | 2023 Q1 |
| Fiera Capital CORP | 609.1k | 0.28% | $33.7M | added +2% | 2024 Q3 |
| Neuberger Berman Group LLC | 576.2k | 0.26% | $31.9M | added +14.1% | 2022 Q2 |
| Victory Capital Management INC | 553.1k | 0.25% | $30.6M | trimmed -53% | 2013 Q3 |
| Bank OF America CORP /DE/ | 443.8k | 0.20% | $24.6M | trimmed -59.4% | ≤2013 |
| Palisade Capital Management, LP | 438.3k | 0.20% | $24.3M | trimmed -5.5% | ≤2013 |
| Ameriprise Financial INC | 427.2k | 0.19% | $23.7M | unchanged | ≤2013 |
| Gotham Asset Management | 426.8k | 0.19% | $23.6M | added +39.3% | 2021 Q4 |
| Nuveen | 410.1k | 0.18% | $22.7M | trimmed -10.4% | 2019 Q2 |
| Envestnet Asset Management INC | 381.8k | 0.17% | $21.1M | added +21.2% | 2019 Q4 |
| Millennium Management | 363.6k | 0.16% | $20.1M | added +407.8% | 2018 Q3 |
| Lord, Abbett & CO. LLC | 354.2k | 0.16% | $19.6M | added +210.6% | 2025 Q4 |
| OP Asset Management LTD | 353.7k | 0.16% | $19.6M | trimmed -41.2% | 2025 Q1 |
| NEW York State Common Retirement Fund | 347.1k | 0.16% | $19.2M | trimmed -0.6% | ≤2013 |
| Jane Street | 341.3k | 0.15% | $18.9M | added +59.4% | 2021 Q1 |
| D. E. Shaw | 340.8k | 0.15% | $18.9M | trimmed -23.5% | 2015 Q1 |
| Bessemer Group INC | 333.1k | 0.15% | $18.4M | trimmed -21% | 2023 Q2 |
| Epoch Investment Partners, INC. | 324.9k | 0.15% | $18.0M | added +20.4% | 2023 Q1 |
| Rhumbline Advisers | 310.3k | 0.14% | $17.2M | added +2.4% | ≤2013 |
| Lazard Asset Management LLC | 299.5k | 0.14% | $16.6M | added +98.4% | 2019 Q4 |
| DekaBank Deutsche Girozentrale | 295.6k | 0.13% | $16.4M | unchanged | 2022 Q1 |
Largest 50 of 697 shown; the full ranked, searchable register is at boothcheck.com/holders/MLI. 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.