Who owns BIDU (BIDU)
Which tracked institutional funds hold BIDU, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BIDU company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
93 tracked funds added or opened BIDU while 182 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BIDU’s largest tracked holder by dollar value, PRIMECAP MANAGEMENT CO/CA/, sizes it at 1.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BIDU divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 501 tracked filers holding BIDU, 257 increased or opened the position and 259 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BIDU between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 31
- Qube Research & Technologies Ltd$44M
- Clark Capital Management Group, Inc.$34M
- Holocene Advisors, LP$18M
- Handelsbanken Fonder AB$13M
- ExodusPoint Capital Management, LP$10M
- Nishkama Capital, LLC$9M
Full exits 49
- SCHRODER INVESTMENT MANAGEMENT GROUP$153M
- Brandywine Global Investment Management, LLC$50M
- Carrhae Capital LLP$45M
- ARGA Investment Management, LP$40M
- NAN FUNG TRINITY (HK) LTD$36M
- KEYSTONE INVESTORS PTE LTD$22M
Largest adds
- MORGAN STANLEY$372M
- BlackRock, Inc.$223M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$56M
- JPMORGAN CHASE & CO$50M
- UBS Group AG$50M
- WCM INVESTMENT MANAGEMENT, LLC$43M
Largest trims
- PRIMECAP MANAGEMENT CO/CA/$219M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$125M
- CITADEL ADVISORS LLC$81M
- BANK OF AMERICA CORP /DE/$76M
- Point72 Asset Management, L.P.$66M
- IMC-Chicago, LLC$55M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 11,056,800 | $1.2B | 17.5% | 2026-Q1 |
| MORGAN STANLEY added | 6,514,644 | $726M | 10.3% | 2026-Q1 |
| BlackRock, Inc. added | 2,296,478 | $256M | 3.6% | 2026-Q1 |
| UBS Group AG added | 2,124,299 | $237M | 3.4% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 1,474,077 | $164M | 2.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,212,101 | $135M | 1.9% | 2026-Q1 |
| Capital World Investors added | 1,198,291 | $134M | 1.9% | 2026-Q1 |
| ARK Investment Management LLC trimmed | 1,120,331 | $125M | 1.8% | 2026-Q1 |
| Black Creek Investment Management Inc. added | 931,956 | $104M | 1.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 873,903 | $97M | 1.4% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 859,332 | $96M | 1.4% | 2026-Q1 |
| EARNEST PARTNERS LLC trimmed | 857,969 | $96M | 1.4% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 838,173 | $93M | 1.3% | 2026-Q1 |
| North of South Capital LLP added | 739,299 | $82M | 1.2% | 2026-Q1 |
| Appaloosa LP added | 692,100 | $77M | 1.1% | 2026-Q1 |
| TT International Asset Management LTD added | 627,577 | $70M | 1.0% | 2026-Q1 |
| Amova Asset Management Americas, Inc. trimmed | 567,778 | $63M | 0.9% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 567,778 | $63M | 0.9% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 550,863 | $62M | 0.9% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 547,285 | $61M | 0.9% | 2026-Q1 |
| DNB Asset Management AS added | 540,777 | $60M | 0.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 554,576 | $59M | 0.8% | 2026-Q1 |
| FMR LLC trimmed | 529,364 | $59M | 0.8% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 470,144 | $52M | 0.7% | 2026-Q1 |
| FARALLON CAPITAL MANAGEMENT LLC added | 443,785 | $49M | 0.7% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC added | 454,295 | $48M | 0.7% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 419,845 | $47M | 0.7% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 402,639 | $45M | 0.6% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 397,640 | $44M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 394,028 | $44M | 0.6% | 2026-Q1 |
| SG Americas Securities, LLC added | 385,315 | $43M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 376,172 | $42M | 0.6% | 2026-Q1 |
| Portolan Capital Management, LLC added | 366,429 | $41M | 0.6% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 356,604 | $40M | 0.6% | 2026-Q1 |
| Rheos Capital Works Inc. | 352,000 | $39M | 0.6% | 2026-Q1 |
| Penserra Capital Management LLC added | 333,813 | $37M | 0.5% | 2026-Q1 |
| Defiance ETFs, LLC added | 333,732 | $37M | 0.5% | 2026-Q1 |
| CITIGROUP INC added | 314,928 | $35M | 0.5% | 2026-Q1 |
| BARCLAYS PLC trimmed | 306,043 | $34M | 0.5% | 2026-Q1 |
| Clark Capital Management Group, Inc. trimmed | 301,645 | $34M | 0.5% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 296,451 | $33M | 0.5% | 2026-Q1 |
| Polunin Capital Partners Ltd trimmed | 288,440 | $32M | 0.5% | 2026-Q1 |
| LOOMIS SAYLES & CO L P added | 286,103 | $32M | 0.5% | 2026-Q1 |
| SEI INVESTMENTS CO added | 285,068 | $32M | 0.5% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 286,775 | $31M | 0.4% | 2026-Q1 |
| Legal & General Group Plc trimmed | 268,007 | $30M | 0.4% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 265,615 | $30M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 261,200 | $29M | 0.4% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 249,407 | $28M | 0.4% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 238,261 | $27M | 0.4% | 2026-Q1 |
| Contrarius Group Holdings Ltd trimmed | 230,190 | $26M | 0.4% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 208,674 | $23M | 0.3% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 211,469 | $23M | 0.3% | 2026-Q1 |
| Mariner, LLC trimmed | 198,070 | $22M | 0.3% | 2026-Q1 |
| Orbis Allan Gray Ltd trimmed | 190,705 | $21M | 0.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 180,377 | $20M | 0.3% | 2026-Q1 |
| FIL Ltd trimmed | 166,121 | $19M | 0.3% | 2026-Q1 |
| Capital Wealth Planning, LLC added | 164,149 | $18M | 0.3% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 163,573 | $18M | 0.3% | 2026-Q1 |
| Holocene Advisors, LP trimmed | 163,419 | $18M | 0.3% | 2026-Q1 |
| Long Focus Capital Management, LLC | 159,800 | $18M | 0.3% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 158,545 | $18M | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 145,537 | $16M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 136,397 | $15M | 0.2% | 2026-Q1 |
| M&G PLC added | 126,402 | $14M | 0.2% | 2026-Q1 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main added | 121,035 | $13M | 0.2% | 2026-Q1 |
| SIH Partners, LLLP trimmed | 119,441 | $13M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 118,329 | $13M | 0.2% | 2026-Q1 |
| LPL Financial LLC added | 118,112 | $13M | 0.2% | 2026-Q1 |
| HHLR ADVISORS, LTD. added | 1,641,000 | $216M | 3.1% | 2025-Q3 stale |
| Bridgewater Associates, LP added | 2,076,305 | $191M | 2.7% | 2025-Q1 stale |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 1,157,374 | $153M | 2.2% | 2025-Q4 stale |
| RPD Fund Management LLC added | 1,258,856 | $108M | 1.5% | 2025-Q2 stale |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 1,037,626 | $95M | 1.4% | 2025-Q1 stale |
| STEADFAST CAPITAL MANAGEMENT LP new | 455,084 | $60M | 0.9% | 2025-Q3 stale |
| Maple Rock Capital Partners Inc. added | 625,100 | $58M | 0.8% | 2025-Q1 stale |
| Brandywine Global Investment Management, LLC added | 384,282 | $50M | 0.7% | 2025-Q4 stale |
| Aspex Management (HK) Ltd added | 368,351 | $49M | 0.7% | 2025-Q3 stale |
| Carrhae Capital LLP added | 341,747 | $45M | 0.6% | 2025-Q4 stale |
| Triata Capital Ltd trimmed | 470,623 | $40M | 0.6% | 2025-Q2 stale |
| ARGA Investment Management, LP trimmed | 302,873 | $40M | 0.6% | 2025-Q4 stale |
| NAN FUNG TRINITY (HK) LTD added | 273,721 | $36M | 0.5% | 2025-Q4 stale |
| Slate Path Capital LP added | 371,300 | $34M | 0.5% | 2025-Q1 stale |
| NORGES BANK added | 319,116 | $34M | 0.5% | 2025-Q3 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 366,002 | $31M | 0.4% | 2025-Q2 stale |
| Hudson Bay Capital Management LP | 300,000 | $28M | 0.4% | 2025-Q1 stale |
| CANADA LIFE ASSURANCE Co added | 242,056 | $22M | 0.3% | 2025-Q1 stale |
| KEYSTONE INVESTORS PTE LTD new | 165,172 | $22M | 0.3% | 2025-Q4 stale |
| GF FUND MANAGEMENT CO. LTD. new | 163,059 | $21M | 0.3% | 2025-Q3 stale |
| Squarepoint Ops LLC trimmed | 161,190 | $21M | 0.3% | 2025-Q4 stale |
| MIRAE ASSET SECURITIES (USA) INC. added | 150,352 | $20M | 0.3% | 2025-Q4 stale |
| FRED ALGER MANAGEMENT, LLC added | 146,886 | $19M | 0.3% | 2025-Q3 stale |
| Quadrature Capital Ltd added | 145,847 | $19M | 0.3% | 2025-Q4 stale |
| OAKTREE CAPITAL MANAGEMENT LP trimmed | 199,684 | $18M | 0.3% | 2025-Q1 stale |
| GROUP ONE TRADING LLC added | 210,258 | $18M | 0.3% | 2025-Q2 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 126,631 | $17M | 0.2% | 2025-Q3 stale |
| 683 Capital Management, LLC added | 177,500 | $16M | 0.2% | 2025-Q1 stale |
| MERITAGE PORTFOLIO MANAGEMENT trimmed | 117,856 | $15M | 0.2% | 2025-Q4 stale |
| Melqart Asset Management (UK) Ltd added | 100,146 | $13M | 0.2% | 2025-Q3 stale |
| LMR Partners LLP added | 100,213 | $13M | 0.2% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.