Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
486 institutional managers reported holding BIDU for the quarter ended Mar 31, 2026. Together they hold about 16% of shares outstanding; the top 10 hold 9%. 78 opened new positions; 108 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| PRIMECAP Management | 11.06M | 3.25% | $1.23B | unchanged | 2019 Q4 |
| Morgan Stanley | 6.51M | 1.92% | $726.1M | added +140.4% | ≤2013 |
| BlackRock | 2.30M | 0.68% | $255.9M | added +805.4% | ≤2013 |
| UBS | 2.12M | 0.63% | $236.8M | added +48.7% | ≤2013 |
| Robeco Institutional Asset Management B.v. | 1.47M | 0.43% | $164.3M | added +4.4% | 2022 Q4 |
| Dimensional Fund Advisors | 1.21M | 0.36% | $135.1M | trimmed -2.1% | 2016 Q4 |
| Capital Group (American Funds) | 1.20M | 0.35% | $133.5M | added +1.3% | 2024 Q3 |
| ARK Investment Management | 1.12M | 0.33% | $124.9M | trimmed -3.2% | 2025 Q1 |
| Mirae Asset Global Etfs Holdings LTD. | 961.4k | 0.28% | $107.1M | added +140.1% | ≤2013 |
| Black Creek Investment Management INC. (focused) | 932.0k | 0.27% | $103.9M | added +4.4% | 2019 Q2 |
| Goldman Sachs | 873.9k | 0.26% | $97.4M | trimmed -6.4% | ≤2013 |
| Earnest Partners LLC | 858.0k | 0.25% | $95.6M | trimmed -3.4% | 2017 Q4 |
| Nomura Asset Management International INC. | 838.2k | 0.25% | $93.4M | trimmed -18.8% | 2023 Q3 |
| North of South Capital LLP (focused) | 739.3k | 0.22% | $82.4M | added +73.5% | 2024 Q2 |
| Appaloosa (focused) | 692.1k | 0.20% | $77.1M | added +20.4% | 2023 Q2 |
| TT International Asset Management LTD (focused) | 627.6k | 0.18% | $69.9M | added +142.4% | 2025 Q4 |
| Sumitomo Mitsui Trust Group, INC. | 567.8k | 0.17% | $63.3M | trimmed -15.2% | 2025 Q1 |
| Amova Asset Management Americas, INC. | 567.8k | 0.17% | $63.3M | trimmed -15% | 2025 Q1 |
| FMR (Fidelity) | 559.2k | 0.16% | $62.3M | trimmed -21.8% | ≤2013 |
| MFS Investment Management | 550.9k | 0.16% | $61.4M | trimmed -5% | 2021 Q4 |
| Susquehanna International Group | 547.3k | 0.16% | $61.0M | trimmed -61.6% | ≤2013 |
| DNB Asset Management AS | 540.8k | 0.16% | $60.3M | added +19.5% | 2025 Q3 |
| Royal Bank OF Canada | 470.1k | 0.14% | $52.4M | added +124.6% | ≤2013 |
| WCM Investment Management | 454.3k | 0.13% | $50.6M | added +967.3% | 2021 Q1 |
| Farallon Capital | 443.8k | 0.13% | $49.5M | added +40.8% | 2025 Q3 |
| BNP Paribas Financial Markets | 439.0k | 0.13% | $48.9M | added +445.9% | ≤2013 |
| Jane Street | 402.6k | 0.12% | $44.9M | trimmed -39.5% | 2014 Q1 |
| Qube Research & Technologies LTD | 397.6k | 0.12% | $44.3M | opened | 2026 Q1 |
| Millennium Management | 394.0k | 0.12% | $43.9M | added +223.8% | ≤2013 |
| SG Americas Securities, LLC | 385.3k | 0.11% | $42.9M | added +6% | ≤2013 |
| Citadel Advisors | 376.2k | 0.11% | $41.9M | trimmed -60.2% | 2013 Q3 |
| Portolan Capital Management, LLC | 366.4k | 0.11% | $40.8M | added +39% | 2023 Q2 |
| Bank OF America CORP /DE/ | 356.6k | 0.10% | $39.7M | trimmed -59.8% | ≤2013 |
| Rheos Capital Works INC. | 352.0k | 0.10% | $39.2M | unchanged | 2025 Q3 |
| Penserra Capital Management LLC | 333.8k | 0.10% | $37.2M | added +5.3% | 2015 Q4 |
| Defiance ETFs, LLC | 333.7k | 0.10% | $37.2M | added +5.3% | 2025 Q4 |
| Citigroup INC | 314.9k | 0.09% | $35.1M | added +20.2% | ≤2013 |
| Barclays PLC | 306.0k | 0.09% | $34.1M | trimmed -18.8% | ≤2013 |
| Clark Capital Management Group, INC. | 301.6k | 0.09% | $33.6M | opened | 2026 Q1 |
| Alyeska Investment Group | 296.5k | 0.09% | $33.0M | added +112.8% | 2023 Q2 |
| Polunin Capital Partners LTD (focused) | 288.4k | 0.09% | $32.1M | trimmed -30.2% | 2025 Q1 |
| DekaBank Deutsche Girozentrale | 286.8k | 0.08% | $32.0M | unchanged | 2013 Q3 |
| Loomis Sayles & CO L P | 286.1k | 0.08% | $31.9M | added +12.4% | 2015 Q4 |
| SEI Investments CO | 285.1k | 0.08% | $31.8M | added +13.1% | ≤2013 |
| Legal & General Group PLC | 268.0k | 0.08% | $29.9M | trimmed -1.7% | ≤2013 |
| Northern Trust | 265.6k | 0.08% | $29.6M | trimmed -3.8% | ≤2013 |
| Marshall Wace | 249.4k | 0.07% | $27.8M | trimmed -53.4% | 2025 Q1 |
| Balyasny Asset Management | 238.3k | 0.07% | $26.6M | trimmed -4% | 2023 Q4 |
| Contrarius Group Holdings LTD (focused) | 230.2k | 0.07% | $25.7M | trimmed -30.5% | 2023 Q1 |
| Nordea Investment Management AB | 211.5k | 0.06% | $23.6M | trimmed -27.9% | ≤2013 |
Largest 50 of 486 shown; the full ranked, searchable register is at boothcheck.com/holders/BIDU. 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.