Weibo Corporation (WB) Ownership
WB ownership summary
as of October 18, 2026- Institutions
- 25.7% of shares outstanding
- Insiders
- 8.25% of shares outstanding
- Shares outstanding
- 157.9M
- Float
- 83.8M shares available to trade
- Short interest
- 19.61% 16.8M shares short
- Days to cover
- 15.77 short interest up 7.4% vs prior month
- Institutions 25.69%
- Insiders 8.25%
- Other investors 66.07%
WB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Alibaba Group Holding Ltd | 3.66% | 9.0M | $58.4M | — | June 30, 2026 |
| 2 | Acadian Asset Management LLC | 2.06% | 5.1M | $32.8M | −512,069 (−9.2%) | June 30, 2026 |
| 3 | Krane Funds Advisors LLC | 1.43% | 3.5M | $22.9M | −297,904 (−7.8%) | June 30, 2026 |
| 4 | Saba Capital Management, LP | 1.26% | 3.1M | $20.2M | +670,169 (+27.5%) | June 30, 2026 |
| 5 | Polunin Capital Partners Ltd | 1.19% | 2.9M | $19.0M | +2.9M (0.0%) | June 30, 2026 |
| 6 | Wellington Management Company LLP | 0.96% | 2.4M | $15.3M | +697,778 (+41.9%) | June 30, 2026 |
| 7 | Causeway Capital Management LLC | 0.94% | 2.3M | $15.0M | −348,625 (−13.1%) | June 30, 2026 |
| 8 | Fidelity International Ltd | 0.71% | 1.7M | $11.3M | −62,645 (−3.5%) | June 30, 2026 |
| 9 | Delaware Management Holdings Inc | 0.62% | 1.5M | $9.8M | −43,218 (−2.8%) | June 30, 2026 |
| 10 | The Goldman Sachs Group Inc | 0.49% | 1.2M | $7.8M | −498,772 (−29.4%) | June 30, 2026 |
| 11 | UBS Group AG | 0.40% | 976K | $6.3M | +243,299 (+33.2%) | June 30, 2026 |
| 12 | New York State Common Retirement Fund | 0.32% | 781K | $5.1M | +217,100 (+38.5%) | June 30, 2026 |
| 13 | O'Shaughnessy Asset Management LLC | 0.29% | 722K | $4.7M | −69,294 (−8.8%) | June 30, 2026 |
| 14 | American Century Companies Inc | 0.28% | 692K | $4.5M | −32,680 (−4.5%) | June 30, 2026 |
| 15 | SEI Investments Co | 0.27% | 666K | $4.3M | +81,547 (+14.0%) | June 30, 2026 |
| 16 | Prudential Financial Inc | 0.27% | 658K | $4.3M | +190,600 (+40.8%) | June 30, 2026 |
| 17 | Susquehanna International Group, LLP | 0.26% | 650K | $4.2M | −19,900 (−3.0%) | June 30, 2026 |
| 18 | D. E. Shaw & Co LP | 0.26% | 645K | $4.2M | +9,704 (+1.5%) | June 30, 2026 |
| 19 | Quinn Opportunity Partners LLC | 0.26% | 639K | $4.1M | — | June 30, 2026 |
| 20 | State Street Corp | 0.25% | 608K | $3.9M | −291,514 (−32.4%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 5.0M shares and 10 cut 2.2M.
WB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | KraneShares CSI China Internet ETF | 0.75% | 1.8M | $11.9M | −16,448 (−0.9%) | September 30, 2026 |
| 2 | Nomura Emerging Markets Instl | 0.59% | 1.4M | $9.4M | — | August 31, 2026 |
| 3 | Fidelity GIF Hong Kong Equity A | 0.32% | 791K | $5.1M | +156,825 (+24.7%) | August 31, 2026 |
| 4 | Acadian Emerg Mkts Eq II A USD Acc | 0.32% | 776K | $5.0M | +167,274 (+27.5%) | September 30, 2026 |
| 5 | Causeway Emerging Markets Instl | 0.30% | 745K | $4.8M | +21,086 (+2.9%) | June 30, 2026 |
| 6 | Avantis Emerging Markets Equity ETF | 0.24% | 584K | $3.8M | — | September 30, 2026 |
| 7 | Old Westbury Small & Mid Cap Strategies | 0.20% | 494K | $3.2M | — | July 31, 2026 |
| 8 | BOCOM Schroders CSI OS China(QDII-LOF)A | 0.20% | 489K | $3.2M | +17,329 (+3.7%) | June 30, 2026 |
| 9 | Fidelity RMT-Hong Kong Equity | 0.18% | 454K | $2.9M | +454,245 (0.0%) | August 31, 2026 |
| 10 | E Fund CSI China Ovsea Net 50 QDII-ETF | 0.15% | 360K | $2.3M | +13,884 (+4.0%) | June 30, 2026 |
| 11 | DFA Emerging Markets Core Equity 2 I | 0.14% | 352K | $2.3M | −104,062 (−22.8%) | August 31, 2026 |
| 12 | Fidelity Greater China A-Dis-USD | 0.13% | 312K | $2.0M | −526 (−0.2%) | August 31, 2026 |
| 13 | Fidelity Greater China II S-Acc-SGD | 0.12% | 307K | $2.0M | +7 (+0.0%) | August 31, 2026 |
| 14 | KraneShares CSI China Internet ETF USD | 0.11% | 272K | $1.8M | — | September 30, 2026 |
| 15 | Hartford Emerging Markets Equity I | 0.10% | 249K | $1.6M | — | August 31, 2026 |
| 16 | Undly L&G Future World EM Eq Idx Fd | 0.10% | 247K | $1.6M | +115,609 (+87.7%) | June 30, 2026 |
| 17 | Acadian Select Em Mkts Equity A GBP Acc | 0.10% | 245K | $1.6M | +151,969 (+163.0%) | September 30, 2026 |
| 18 | Strategic Advisers Emerging Markets | 0.09% | 218K | $1.4M | — | August 31, 2026 |
| 19 | Prisma Cube | 0.09% | 210K | $1.4M | +20,000 (+10.5%) | June 30, 2026 |
| 20 | ZIF Aktien Emerging Markets CHF A1 | 0.07% | 175K | $1.1M | — | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
WB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns WB
Institutional investors own 25.7% of Weibo's shares and insiders 8.25%. The largest holder is Alibaba Group Holding Ltd with 3.66% of the shares (9.0M), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 10 reduced their stake in the latest filings. Short interest is 19.61% of the float, or 15.77 days of average trading volume. The share count rose 10.3% since 2014.
Related: WB analyst forecast, WB key metrics, WB dividend history. See the WB stock overview for the latest quote and news.
WB ownership FAQ
Who owns the most Weibo stock?
The largest shareholders of Weibo are Alibaba Group Holding Ltd (3.66%), Acadian Asset Management LLC (2.06%), Krane Funds Advisors LLC (1.43%), Saba Capital Management, LP (1.26%), Polunin Capital Partners Ltd (1.19%).
What percentage of Weibo is owned by institutions?
Institutions hold 25.7% of Weibo's shares outstanding; insiders hold 8.25%.
Which funds own Weibo?
The largest fund holders of Weibo are KraneShares CSI China Internet ETF (0.75%), Nomura Emerging Markets Instl (0.59%), Fidelity GIF Hong Kong Equity A (0.32%), Acadian Emerg Mkts Eq II A USD Acc (0.32%), Causeway Emerging Markets Instl (0.30%).
What is Weibo's short interest?
16.8M shares of Weibo were sold short, 19.61% of the float; at the average daily volume it would take 15.77 days to cover.
How many shares of Weibo are outstanding?
Weibo has 157.9M shares outstanding, of which 83.8M are in the public float.