Who owns BZUN
Which tracked institutional funds hold BZUN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BZUN company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
The tracked-fund tape on BZUN is one-sided between 2026-Q1 and 2026-Q2: 8 added or opened and 1 trimmed or exited — on balance accumulating.
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
BZUN’s largest tracked holder by dollar value, SCHRODER INVESTMENT MANAGEMENT GROUP, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BZUN 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 2026-Q1 and 2026-Q2, across 65 tracked filers holding BZUN, 21 increased or opened the position and 32 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
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 BZUN between the 2026-Q1 and 2026-Q2 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 1
- AMERICAN CENTURY COMPANIES INC$725K
Full exits 1
- ACADIAN ASSET MANAGEMENT LLC$5M
Largest adds
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$2M
- CITADEL ADVISORS LLC$1M
- SCHRODER INVESTMENT MANAGEMENT GROUP$1M
- MARSHALL WACE, LLP$926K
- TWO SIGMA INVESTMENTS, LP$852K
- GOLDMAN SACHS GROUP INC$370K
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 |
|---|---|---|---|---|
| SCHRODER INVESTMENT MANAGEMENT GROUP | 2,414,558 | $7M | 17.7% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,114,919 | $3M | 8.1% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 890,508 | $3M | 6.5% | 2026-Q2 |
| MARSHALL WACE, LLP added | 780,391 | $2M | 5.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 568,534 | $2M | 4.2% | 2026-Q2 |
| MORGAN STANLEY trimmed | 526,315 | $1M | 3.8% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 499,047 | $1M | 3.6% | 2026-Q2 |
| First Beijing Investment Ltd trimmed | 432,828 | $1M | 3.2% | 2026-Q2 |
| AIA Group Ltd | 399,018 | $1M | 2.9% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 313,347 | $887K | 2.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC new | 256,300 | $725K | 1.9% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 194,536 | $554K | 1.4% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 193,516 | $548K | 1.4% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 181,190 | $513K | 1.3% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 161,850 | $458K | 1.2% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 159,664 | $452K | 1.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 154,544 | $437K | 1.1% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 130,688 | $370K | 1.0% | 2026-Q2 |
| Marex Group Ltd | 119,224 | $337K | 0.9% | 2026-Q2 |
| XTX Topco Ltd trimmed | 104,400 | $295K | 0.8% | 2026-Q2 |
| UBS Group AG trimmed | 102,511 | $290K | 0.7% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 92,523 | $262K | 0.7% | 2026-Q2 |
| Centiva Capital, LP added | 85,084 | $241K | 0.6% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 46,466 | $131K | 0.3% | 2026-Q2 |
| Cetera Investment Advisers added | 44,048 | $125K | 0.3% | 2026-Q2 |
| STATE STREET CORP trimmed | 37,630 | $106K | 0.3% | 2026-Q2 |
| Headlands Technologies LLC trimmed | 33,858 | $96K | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 32,284 | $91K | 0.2% | 2026-Q2 |
| IMC-Chicago, LLC added | 31,069 | $88K | 0.2% | 2026-Q2 |
| SIMPLEX TRADING, LLC trimmed | 29,794 | $84K | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. | 28,760 | $82K | 0.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 28,685 | $81K | 0.2% | 2026-Q2 |
| Quadrature Capital Ltd trimmed | 28,108 | $80K | 0.2% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND | 23,914 | $68K | 0.2% | 2026-Q2 |
| RBF Capital, LLC | 20,000 | $57K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 19,744 | $56K | 0.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 18,607 | $53K | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 10,790 | $31K | 0.1% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey | 10,783 | $31K | 0.1% | 2026-Q2 |
| PFG Investments, LLC | 10,200 | $29K | 0.1% | 2026-Q2 |
| US BANCORP \DE\ new | 10,000 | $28K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 5,723 | $16K | 0.0% | 2026-Q2 |
| North Star Investment Management Corp. | 2,900 | $8K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 2,021 | $6K | 0.0% | 2026-Q2 |
| RHUMBLINE ADVISERS | 1,366 | $4K | 0.0% | 2026-Q2 |
| Leonteq Securities AG | 1,008 | $3K | 0.0% | 2026-Q2 |
| N.E.W. Advisory Services LLC | 800 | $2K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 462 | $1K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 477 | $1K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 300 | $849 | 0.0% | 2026-Q2 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 272 | $770 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. | 258 | $730 | 0.0% | 2026-Q2 |
| Compagnie Lombard Odier SCmA | 200 | $566 | 0.0% | 2026-Q2 |
| Federation des caisses Desjardins du Quebec | 200 | $566 | 0.0% | 2026-Q2 |
| NewEdge Advisors, LLC trimmed | 150 | $425 | 0.0% | 2026-Q2 |
| TD Waterhouse Canada Inc. | 125 | $363 | 0.0% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added | 100 | $283 | 0.0% | 2026-Q2 |
| ADIRONDACK TRUST CO | 75 | $211 | 0.0% | 2026-Q2 |
| Essential Investment Partners LLC | 60 | $170 | 0.0% | 2026-Q2 |
| SWAN Capital LLC | 47 | $133 | 0.0% | 2026-Q2 |
| Eurizon Capital SGR S.p.A. | 45 | $127 | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 41 | $116 | 0.0% | 2026-Q2 |
| Mosley Wealth Management new | 36 | $102 | 0.0% | 2026-Q2 |
| HARBOR INVESTMENT ADVISORY, LLC | 4 | $11 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd | 2 | $6 | 0.0% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC added | 2,116,457 | $5M | 13.0% | 2026-Q1 stale (1 quarter behind) |
| GSA CAPITAL PARTNERS LLP trimmed | 131,745 | $315K | 0.8% | 2026-Q1 stale (1 quarter behind) |
| Polunin Capital Partners Ltd | 60,222 | $153K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 50,000 | $120K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC new | 45,904 | $110K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Jump Financial, LLC trimmed | 45,260 | $108K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Point72 Asset Management, L.P. added | 41,876 | $100K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP trimmed | 12,258 | $29K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| QRG CAPITAL MANAGEMENT, INC. trimmed | 10,990 | $26K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| BlackRock, Inc. | 827 | $2K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| IMA Advisory Services, Inc. trimmed | 70 | $167 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA ADVISERS, LP trimmed | 614,522 | $2M | 4.2% | 2025-Q4 stale (2 quarters behind) |
| Walleye Capital LLC trimmed | 151,151 | $402K | 1.0% | 2025-Q4 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 112,830 | $300K | 0.8% | 2025-Q4 stale (2 quarters behind) |
| Vestmark Advisory Solutions, Inc. new | 12,024 | $32K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| TWO SIGMA SECURITIES, LLC trimmed | 11,422 | $30K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| CWM, LLC new | 350 | $1K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Rockefeller Capital Management L.P. | 50 | $133 | 0.0% | 2025-Q4 stale (2 quarters behind) |
| BARCLAYS PLC | 160,000 | $573K | 1.5% | 2025-Q3 stale (3 quarters behind) |
| Cubist Systematic Strategies, LLC added | 59,838 | $242K | 0.6% | 2025-Q3 stale (3 quarters behind) |
| MACKENZIE FINANCIAL CORP trimmed | 25,089 | $102K | 0.3% | 2025-Q3 stale (3 quarters behind) |
| LPL Financial LLC new | 13,338 | $54K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| STOREBRAND ASSET MANAGEMENT AS | 5,068 | $21K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| Walleye Trading LLC added | 1,265 | $5K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Groupe la Francaise new | 327 | $1K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| SIGNATUREFD, LLC | 250 | $1K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Blue Trust, Inc. | 90 | $365 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Main Street Group, LTD | 78 | $317 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Mascoma Wealth Management LLC | 30 | $122 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| JONES FINANCIAL COMPANIES LLLP | 14 | $57 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| IFP Advisors, Inc | 1 | $4 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| RAYMOND JAMES FINANCIAL INC new | 1,705 | $4K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| TOTAL INVESTMENT MANAGEMENT INC new | 32 | $80 | 0.0% | 2025-Q2 stale (4 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
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.