Weibo Corporation
Weibo Corporation (WB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WB · as of Sep 30, 2025
Ownership Breakdown
152
Institutional Holders
$663.45M
Total Inst. Value
▲ $117.61M vs Q2
239.06M
Shares Outstanding
freeFloat 99.96%
54.01M
13F Shares Held
▼ 3.25M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ALIBABA GROUP HOLDING LTD services-computer programming, data processing, etc. | 9.00M | 3.77% | 3.77% | $111.60B | Nov 14, 2025 | — held |
ACADIAN ASSET MANAGEMENT LLC services-computer programming, data processing, etc. | 5.86M | 2.46% | 2.46% | $72.64B | Nov 13, 2025 | ▼ 88.1K |
KRANE FUNDS ADVISORS LLC services-computer programming, data processing, etc. | 4.68M | 1.96% | 1.96% | $51.88B | Nov 10, 2025 | ▲ 934.9K |
CAUSEWAY CAPITAL MANAGEMENT LLC services-computer programming, data processing, etc. | 2.95M | 1.24% | 1.24% | $36.61B | Nov 13, 2025 | ▲ 308.5K |
BLACKROCK, INC. services-computer programming, data processing, etc. | 2.70M | 1.13% | 1.13% | $33.46B | Nov 12, 2025 | ▼ 652.0K |
SABA CAPITAL MANAGEMENT, L.P. services-computer programming, data processing, etc. | 2.02M | 84.44% | 84.44% | $24.99B | Nov 14, 2025 | ▼ 602.3K |
NUVEEN, LLC services-computer programming, data processing, etc. | 1.71M | 71.61% | 71.61% | $21.19B | Nov 12, 2025 | ▲ 12.1K |
MACQUARIE GROUP LTD services-computer programming, data processing, etc. | 1.57M | 65.90% | 65.90% | $19.50B | Nov 13, 2025 | ▼ 22.3K |
UBS GROUP AG services-computer programming, data processing, etc. | 1.38M | 57.73% | 57.73% | $17.08B | Nov 13, 2025 | ▲ 698.5K |
GOLDMAN SACHS GROUP INC services-computer programming, data processing, etc. | 1.37M | 57.34% | 57.34% | $16.97B | Nov 14, 2025 | ▼ 342.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
18
Increased
+4.21M shares3
New Positions
first time holders26
Decreased
−5.31M shares0
Sold Out
fully exitedNet shares change (top 50)
1.11M
+4.21M / −5.31M
Net new holders
-5
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WB insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Weibo Corporation (WB) is primarily owned by institutional investors, who hold approximately 22.6% of total shares outstanding. Company insiders own approximately 0.04%, while retail and public investors account for the remaining 77.37%.
The largest institutional shareholder of Weibo Corporation is ALIBABA GROUP HOLDING LTD, holding approximately 9.00 million shares — equal to 3.77% of outstanding shares — as of September 30, 2025.
A total of 152 institutional investors currently hold WB stock, with a combined institutional value of approximately $663,445,029 as of the most recent 13F filing period.
Frequently asked questions
WB ownershipWeibo Corporation (WB) is primarily owned by institutional investors, who hold approximately 22.6% of shares. The largest shareholder is ALIBABA GROUP HOLDING LTD with a 3.77% stake. Company insiders hold 0.04%. Data sourced from SEC Form 13F as of September 30, 2025.