Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
870 institutional managers reported holding LDOS for the quarter ended Mar 31, 2026. Together they hold about 75% of shares outstanding; the top 10 hold 39%. 93 opened new positions; 151 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 14.99M | 11.71% | $2.33B | unchanged | 2013 Q3 |
| BlackRock | 9.50M | 7.42% | $1.48B | trimmed -8.1% | 2013 Q4 |
| State Street | 6.12M | 4.78% | $951.8M | added +1.6% | 2013 Q3 |
| Diamant Asset Management, INC. | 4.16M | 3.25% | $646.9M | added +16475.4% | 2017 Q4 |
| Geode Capital | 3.63M | 2.83% | $564.4M | added +2.5% | 2013 Q3 |
| Boston Partners | 2.45M | 1.92% | $382.0M | trimmed -12.9% | 2016 Q3 |
| Invesco | 2.39M | 1.87% | $372.1M | added +16.7% | 2013 Q3 |
| VAN ECK Associates CORP | 2.30M | 1.79% | $357.4M | added +0.7% | 2023 Q1 |
| FMR (Fidelity) | 2.20M | 1.72% | $342.2M | trimmed -30.2% | 2013 Q4 |
| Dimensional Fund Advisors | 1.86M | 1.45% | $289.4M | added +2.6% | 2013 Q4 |
| Mirae Asset Global Etfs Holdings LTD. | 1.83M | 1.43% | $285.4M | added +45% | 2022 Q2 |
| MFS Investment Management | 1.83M | 1.43% | $285.2M | trimmed -8.2% | 2016 Q3 |
| AllianceBernstein | 1.64M | 1.28% | $256.0M | trimmed -17.3% | 2013 Q4 |
| Goldman Sachs | 1.62M | 1.27% | $252.4M | added +14.1% | 2013 Q4 |
| First Trust Advisors LP | 1.60M | 1.25% | $248.6M | trimmed -41.9% | 2015 Q3 |
| Morgan Stanley | 1.53M | 1.20% | $238.6M | added +4% | 2013 Q4 |
| UBS | 1.26M | 0.99% | $196.6M | trimmed -13.3% | 2013 Q4 |
| SG Americas Securities, LLC | 1.10M | 0.86% | $170.8M | added +998.6% | 2013 Q4 |
| Northern Trust | 1.09M | 0.85% | $169.1M | trimmed -1.7% | 2013 Q4 |
| Bank OF America CORP /DE/ | 1.05M | 0.82% | $163.8M | trimmed -2.2% | 2013 Q4 |
| AQR Capital | 872.1k | 0.68% | $135.7M | trimmed -31.8% | 2013 Q4 |
| Mariner, LLC | 870.7k | 0.68% | $135.5M | trimmed -4.1% | 2020 Q4 |
| Charles Schwab Investment Management | 859.8k | 0.67% | $133.8M | added +2% | 2013 Q4 |
| Victory Capital Management INC | 857.5k | 0.67% | $133.4M | added +136.3% | 2016 Q3 |
| Qube Research & Technologies LTD | 813.5k | 0.64% | $126.6M | added +88.8% | 2023 Q4 |
| Legal & General Group PLC | 744.6k | 0.58% | $115.9M | trimmed -7.3% | 2013 Q4 |
| BNY Mellon | 685.2k | 0.54% | $106.6M | trimmed -2.6% | 2013 Q4 |
| Pacer Advisors, INC. | 568.5k | 0.44% | $88.5M | opened | 2016 Q2 |
| BNP Paribas Financial Markets | 548.9k | 0.43% | $85.4M | added +10.1% | 2013 Q4 |
| Principal Financial Group INC | 547.2k | 0.43% | $85.2M | trimmed -7.2% | 2013 Q4 |
| D. E. Shaw | 492.7k | 0.39% | $76.7M | added +5638.1% | 2022 Q3 |
| Allspring Global Investments Holdings, LLC | 487.0k | 0.38% | $75.8M | added +0.5% | 2021 Q4 |
| Deutsche Bank AG\ | 418.9k | 0.33% | $65.2M | trimmed -20.5% | 2013 Q4 |
| Citadel Advisors | 385.5k | 0.30% | $60.0M | added +133% | 2013 Q4 |
| Franklin Resources | 382.2k | 0.30% | $59.5M | added +132.2% | 2020 Q3 |
| CalPERS | 374.5k | 0.29% | $58.3M | trimmed -2.6% | 2013 Q4 |
| Mitsubishi UFJ Asset Management CO., LTD. | 371.4k | 0.29% | $57.8M | added +6.8% | 2017 Q2 |
| Wedge Capital Management L L P/NC | 367.4k | 0.29% | $57.2M | added +3.2% | 2022 Q3 |
| Millennium Management | 366.0k | 0.29% | $56.9M | added +391.4% | 2017 Q1 |
| Barclays PLC | 365.0k | 0.28% | $56.8M | added +82.4% | 2013 Q4 |
| Wells Fargo & COMPANY/MN | 358.0k | 0.28% | $55.7M | unchanged | 2013 Q4 |
| Swiss National Bank | 356.4k | 0.28% | $55.5M | added +6.7% | 2013 Q4 |
| Neuberger Berman Group LLC | 344.9k | 0.27% | $53.7M | trimmed -9.7% | 2014 Q3 |
| National Pension Service | 343.7k | 0.27% | $53.5M | added +23.6% | 2017 Q4 |
| Robeco Institutional Asset Management B.v. | 341.8k | 0.27% | $53.2M | trimmed -1.3% | 2015 Q1 |
| Nuveen | 321.7k | 0.25% | $50.1M | added +1.5% | 2017 Q4 |
| Sumitomo Mitsui Trust Group, INC. | 289.5k | 0.23% | $45.1M | trimmed -9.9% | 2017 Q2 |
| LSV Asset Management | 283.1k | 0.22% | $44.1M | added +4.9% | 2025 Q3 |
| Hsbc Holdings PLC | 281.7k | 0.22% | $43.8M | added +31.1% | 2015 Q1 |
| Raymond James Financial INC | 275.3k | 0.21% | $42.8M | trimmed -14.1% | 2016 Q1 |
Largest 50 of 870 shown; the full ranked, searchable register is at boothcheck.com/holders/LDOS. 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.