Institutional ownership · Form 13F
WB institutional ownership
Weibo Corporation - American Depositary Shares: reported institutional holdings as of 2026-06-30 (filed through 2026-08-31), aggregated by StockEyes from SEC Form 13F information tables. WB is one of 2732 tickers in the validated publication set. Mapping coverage in this publication set: 4562 of 6046 universe tickers have at least one validated CUSIP mapping (75.5%). Latest-quarter filed value resolved to any listed ticker: 77.3%; resolved to this universe: 77.2%.
WB: change since the prior quarter's filings
Fewer managers reported a position, with the count falling from 143 in the quarter ended 2026-03-31 to 135 in the quarter ended 2026-06-30 (-8, 5.6%). Total reported shares rose to 47,777,278 (+2,425,640, 5.3%), against the direction of the manager count. Among the 26 managers listed as top holders in both quarters, the largest increases were WELLINGTON MANAGEMENT GROUP LLP (+697,778 shares) and Saba Capital Management, L.P. (+670,169 shares), among 11 managers who added shares, and the largest decreases were GOLDMAN SACHS GROUP INC (-498,772 shares) and CAUSEWAY CAPITAL MANAGEMENT LLC (-348,625 shares), among 13 managers who reduced shares. Linden Advisors LP (387,090 shares), MILLENNIUM MANAGEMENT LLC (282,839 shares) and 2 more entered the listed top holders; TWO SIGMA INVESTMENTS, LP (536,188 shares in the prior quarter), Qube Research & Technologies Ltd (315,993 shares in the prior quarter) and 2 more dropped out of the listed top holders.
New to 13F data? Read how to read a 13F filing, or see where institutions moved overall in the Smart Money Report.
Reported totals, quarter ended 2026-06-30
135 reporting managers held 47,777,278 shares, reported value $287,481,397 exactly as filed. Values are position values transcribed from the filings, not current market prices.
Reported quarter-over-quarter change (quarter ended 2026-03-31 to quarter ended 2026-06-30): reporting managers -8, reported shares +2,425,640 (+5.35%), reported value -17.14%. These changes compare two filing snapshots.
Shares outstanding check: 238,787,000 shares reported by the issuer (SEC XBRL, period ended 2025-12-31). Reported 13F shares equal 20.0% of that figure. This page passed the publication sanity gate before listing.
WB in this quarter's filings
Concentration check: the largest reported position, Alibaba Group Holding Ltd with 9,000,000 shares, is 18.8% of all shares reported for WB this quarter. The five largest reporting managers together account for 42.5% of the reported total, so the headline total is spread across a broad manager base rather than a few holders.
Reported quarter-over-quarter change: the reporting-manager count fell by 8 versus the quarter ended 2026-03-31, and reported shares moved +5.35% (+2,425,640 shares). That is a comparison of two filing snapshots, not a record of trades on any single day.
Shares-outstanding cross-check: reported 13F shares equal 20.0% of the issuer share count used at the publication gate (238,787,000 shares, issuer period ended 2025-12-31). The gate publishes a ticker only when that relationship is plausible; lending chains can push reported totals above a simple ownership share, which is why the figure is a sanity check and not an ownership percentage.
Largest reporting managers, WB
| # | Manager | Shares | Value as filed | Share of reported total |
|---|---|---|---|---|
| 1 | Alibaba Group Holding Ltd | 9,000,000 | $65,340,000 | 18.8% |
| 2 | Krane Funds Advisors LLC | 3,522,391 | $25,572,559 | 7.4% |
| 3 | Saba Capital Management, L.P. | 3,107,526 | $22,560,639 | 6.5% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 2,363,373 | $17,158,087 | 4.9% |
| 5 | CAUSEWAY CAPITAL MANAGEMENT LLC | 2,317,577 | $16,825,609 | 4.9% |
| 6 | FIL Ltd | 1,736,726 | $12,608,630 | 3.6% |
| 7 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1,512,995 | $10,984,000 | 3.2% |
| 8 | GOLDMAN SACHS GROUP INC | 1,199,578 | $8,708,933 | 2.5% |
| 9 | UBS Group AG | 975,555 | $7,082,529 | 2.0% |
| 10 | NEW YORK STATE COMMON RETIREMENT FUND | 781,049 | $5,670,416 | 1.6% |
| 11 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 722,003 | $5,241,742 | 1.5% |
| 12 | AMERICAN CENTURY COMPANIES INC | 691,548 | $5,020,638 | 1.4% |
| 13 | SEI INVESTMENTS CO | 666,104 | $4,835,898 | 1.4% |
| 14 | PRUDENTIAL FINANCIAL INC | 657,700 | $4,774,902 | 1.4% |
| 15 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 650,193 | $4,720,401 | 1.4% |
Manager names and figures are transcribed from each manager's own Form 13F information table. A manager listing shares in this snapshot does not mean it holds them today.
Reported change, 2026-03-31 to 2026-06-30
| Quarter ended | Filed through | Reporting managers | Reported shares | Value as filed |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-29 | 143 | 45,351,638 | $346,954,292 |
| 2026-06-30 | 2026-08-31 | 135 | 47,777,278 | $287,481,397 |
Every change figure on this page is a reported quarter-over-quarter change between filing snapshots. It is not real-time trading activity.
WB reported totals over time
Quarter ended 2026-06-30: 135 reporting managers · 47,777,278 reported shares · $287,481,397 value as filed.
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Quarter-end 13F filed data, long positions only; filings arrive up to 45 days after quarter end.
CUSIPs behind the WB total
The validated bridge mapped 1 current CUSIP(s) to WB for this quarter: 948596101. Option pseudo-CUSIPs, units, warrants, and preferred classes are excluded from these common-share totals. Mapping coverage in this publication set: 4562 of 6046 universe tickers have at least one validated CUSIP mapping (75.5%). Latest-quarter filed value resolved to any listed ticker: 77.3%; resolved to this universe: 77.2%.
What this page is and is not
Form 13F reports are quarterly holdings snapshots. Managers file up to about 45 days after quarter-end, so these figures describe reported positions as of the quarter-end date, not holdings today. 13F lists reportable long positions from managers above the SEC reporting threshold and omits short positions entirely.
This page is informational only. It is not investment advice, a recommendation, or a signal to buy or sell. Source: SEC Form 13F bulk data set for filings through 2026-08-31 (period ended 2026-06-30), joined to tickers through StockEyes' validated CUSIP bridge. Methodology and coverage are documented on the institutional ownership hub.
Insider transactions for WB (officer and director buys and sells) are covered by InsiderTrace: insidertrace.com/stock/wb. StockEyes does not duplicate insider transaction tables.
Related StockEyes pages
Latest headlines tagged WB are on the market news wire. Upcoming earnings and market dates are on the events calendar. The term itself is defined in the institutional investor glossary entry, and the research workflow behind pages like this one is walked through in how to research a stock and how to compare SEC filings.