Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
301 institutional managers reported holding DDS for the quarter ended Mar 31, 2026. Together they hold about 52% of shares outstanding; the top 10 hold 39%. 52 opened new positions; 54 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Newport Trust Company, LLC | 4.51M | 28.90% | $2.57B | unchanged | 2017 Q4 |
| Vanguard Group | 305.8k | 1.96% | $173.9M | added +0.7% | ≤2013 |
| Dimensional Fund Advisors | 216.1k | 1.38% | $122.8M | unchanged | ≤2013 |
| BlackRock | 188.2k | 1.21% | $107.0M | added +2% | ≤2013 |
| UBS | 174.0k | 1.11% | $98.9M | added +132.5% | ≤2013 |
| Allianz Asset Management GmbH | 160.9k | 1.03% | $91.5M | trimmed -2.7% | 2021 Q3 |
| Morgan Stanley | 144.8k | 0.93% | $82.3M | added +16.3% | ≤2013 |
| Renaissance Technologies | 142.2k | 0.91% | $80.8M | added +18.7% | 2021 Q3 |
| AQR Capital | 125.5k | 0.80% | $71.3M | added +7.6% | 2021 Q2 |
| Clientfirst Wealth Management, LLC (focused) | 108.1k | 0.69% | $61.5M | unchanged | 2024 Q4 |
| Gotham Asset Management | 102.3k | 0.66% | $58.2M | added +39% | 2019 Q1 |
| Goldman Sachs | 85.4k | 0.55% | $48.6M | added +182.2% | ≤2013 |
| BNP Paribas Financial Markets | 79.9k | 0.51% | $45.4M | added +137.8% | 2014 Q1 |
| D. E. Shaw | 70.2k | 0.45% | $39.9M | added +255% | 2017 Q1 |
| BNY Mellon | 68.2k | 0.44% | $38.8M | trimmed -9.1% | ≤2013 |
| Geode Capital | 63.0k | 0.40% | $35.8M | added +11.6% | ≤2013 |
| State Street | 62.7k | 0.40% | $35.7M | trimmed -4.5% | ≤2013 |
| Wedge Capital Management L L P/NC | 61.4k | 0.39% | $34.9M | added +10.3% | 2022 Q2 |
| Citadel Advisors | 54.6k | 0.35% | $31.0M | added +132.1% | 2019 Q4 |
| Millennium Management | 51.2k | 0.33% | $29.1M | added +57.1% | 2017 Q4 |
| Hexagon Capital Partners LLC | 49.1k | 0.31% | $27.9M | unchanged | 2020 Q3 |
| Northern Trust | 44.7k | 0.29% | $25.4M | unchanged | ≤2013 |
| Macquarie Group LTD | 43.2k | 0.28% | $24.6M | added +23.4% | 2024 Q1 |
| Nomura Asset Management International INC. | 43.2k | 0.28% | $24.6M | added +23.4% | 2025 Q2 |
| Charles Schwab Investment Management | 43.0k | 0.28% | $24.5M | added +5.2% | ≤2013 |
| Arrowstreet Capital | 40.7k | 0.26% | $23.1M | added +1331.6% | 2025 Q2 |
| Bank OF America CORP /DE/ | 36.2k | 0.23% | $20.6M | trimmed -32.9% | ≤2013 |
| Man Group | 36.2k | 0.23% | $20.6M | added +402.1% | 2021 Q1 |
| Jacobs Levy Equity Management, INC | 35.3k | 0.23% | $20.1M | trimmed -15.3% | 2025 Q1 |
| Jane Street | 34.3k | 0.22% | $19.5M | added +152.5% | 2020 Q1 |
| Summit Street Capital Management, LLC (focused) | 33.1k | 0.21% | $18.8M | trimmed -20.7% | 2024 Q4 |
| CPP Investment Board | 32.4k | 0.21% | $18.4M | added +41.9% | 2024 Q1 |
| American Century Companies INC | 29.3k | 0.19% | $16.7M | trimmed -46.6% | 2020 Q1 |
| Balyasny Asset Management | 28.7k | 0.18% | $16.3M | opened | 2025 Q3 |
| Voloridge Investment Management | 27.0k | 0.17% | $15.4M | added +124% | 2023 Q2 |
| Nuveen | 24.5k | 0.16% | $13.9M | added +191.2% | 2019 Q2 |
| Horrell Capital Management, INC. | 22.3k | 0.14% | $12.7M | trimmed -8.2% | ≤2013 |
| Winmill & CO. INC | 21.5k | 0.14% | $12.2M | unchanged | 2023 Q2 |
| Voleon Capital Management LP | 20.8k | 0.13% | $11.8M | trimmed -13.3% | 2025 Q2 |
| Royce & Associates | 20.0k | 0.13% | $11.4M | trimmed -2.8% | 2021 Q2 |
| Franklin Resources | 19.6k | 0.13% | $11.2M | added +260.2% | 2022 Q1 |
| Cambria Investment Management, L.p. | 17.3k | 0.11% | $9.8M | added +30.3% | 2017 Q1 |
| Nisa Investment Advisors, LLC | 16.8k | 0.11% | $9.5M | trimmed -5.6% | ≤2013 |
| Squarepoint Ops LLC | 16.7k | 0.11% | $9.5M | added +1855.5% | 2025 Q1 |
| EverSource Wealth Advisors, LLC | 16.6k | 0.11% | $9.4M | added +15005.5% | 2023 Q3 |
| Invesco | 16.4k | 0.10% | $9.3M | trimmed -12.8% | ≤2013 |
| First Trust Advisors LP | 16.1k | 0.10% | $9.1M | trimmed -72.5% | 2021 Q2 |
| Victory Capital Management INC | 15.2k | 0.10% | $8.7M | added +37.2% | 2019 Q3 |
| Susquehanna Portfolio Strategies, LLC | 13.9k | 0.09% | $7.9M | added +24.9% | 2025 Q2 |
| Martingale Asset Management L P | 13.8k | 0.09% | $7.9M | added +18% | 2021 Q2 |
Largest 50 of 301 shown; the full ranked, searchable register is at boothcheck.com/holders/DDS. 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.