Weibo WB Institutional Ownership

NASDAQ WB

$6.34 +0.01 (+0.08%)

As of: Oct 22, 2026 · 2:14 PM EDT

Institutions by Trading Activity

135 Institutions

Increased 63 46.7%

Unchanged 26 19.3%

Reduced 46 34.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

20.01%

▲+1.02 pp QoQ

Shares Held by Institutions

47.79Mn

of 238.79Mn outstanding

▲+5.37% QoQ

Shares Outstanding

238.79Mn

191.00Mn held outside 13F filers

Institutional Investors

135

filed 13F for Jun 2026

▼-8 vs prior quarter

Net Shares Added (QoQ)

+2.44Mn

accumulated since last quarter

Value of Holdings

$302.51Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

WEIBO Corp (NASDAQ:WB) appeared in the 13F filings of 135 institutional investors for the quarter ended June 30, 2026.

These investors held 20.01% of Weibo's outstanding shares at the end of Q2 2026, up from 18.99% in Q1 2026.
Total holdings of WB shares rose 5.37% from Q1 2026, and the holder count fell 4.26% from Q2 2025.
Looking at the 135 holders of WB individually, 63 added to their positions, 46 reduced their stakes and 26 left their positions unchanged.
The aggregate institutional position in Weibo was 47.79Mn shares at the end of Q2 2026, up 2.44Mn from the prior quarter and down 8.34Mn from a year earlier.
As of June 30, 2026, Alibaba Group Holding Ltd held the largest stake in Weibo with 9Mn shares, or 3.77% of shares outstanding.
Holders that added the most shares of Weibo in Q2 2026 were Wellington Management Group LLP (+697.78K shares), Saba Capital Management, L.P. (+670.17K shares), Millennium Management LLC (+272.55K shares), UBS Group AG (+243.3K shares) and BNP Paribas Financial Markets (+229.62K shares).
On the other side, among holders that kept a position in Weibo, the largest reductions in Q2 2026 came from Acadian Asset Management LLC (-512.07K shares), Goldman Sachs Group Inc (-498.77K shares), Causeway Capital Management LLC (-348.62K shares), Two Sigma Investments, LP (-311.58K shares) and Krane Funds Advisors LLC (-297.9K shares).
Business Quant data shows the 10 biggest positions in Weibo as of Q2 2026 were held by Alibaba Group Holding Ltd (9Mn shares), Acadian Asset Management LLC (5.05Mn shares), Krane Funds Advisors LLC (3.52Mn shares), Saba Capital Management, L.P. (3.11Mn shares), Polunin Capital Partners Ltd (2.93Mn shares), Wellington Management Group LLP (2.36Mn shares), Causeway Capital Management LLC (2.32Mn shares), FIL Ltd (1.74Mn shares), Nomura Asset Management International Inc. (1.51Mn shares) and Goldman Sachs Group Inc (1.2Mn shares).

Form 13F Holdings

136 Institutional Holders

Report period 30 Jun, 2026

Total shares held 47.79Mn

Of outstanding 20.01%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Alibaba Group Holding Ltd	0001577552	9,000,000	3.77%	0	0.00%	$65.34Mn
2	ACADIAN ASSET MANAGEMENT LLC	0000916542	5,053,606	2.12%	▼512,069	-9.20%	$36.66K
3	Krane Funds Advisors LLC	0001536592	3,522,391	1.48%	▼297,904	-7.80%	$25.57Mn
4	Saba Capital Management, L.P.	0001510281	3,107,526	1.30%	▲670,169	+27.50%	$22.56Mn
5	Polunin Capital Partners Ltd	0001629869	2,926,338	1.23%	▲2,926,338	0.00%	$22.59K
6	WELLINGTON MANAGEMENT GROUP LLP	0000902219	2,363,373	0.99%	▲697,778	+41.89%	$17.16Mn
7	CAUSEWAY CAPITAL MANAGEMENT LLC	0001165797	2,317,577	0.97%	▼348,625	-13.08%	$16.83Mn
8	FIL Ltd	0000318989	1,736,726	0.73%	▼62,645	-3.48%	$12.61Mn
9	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	0000921739	1,512,995	0.63%	▼43,218	-2.78%	$10.98Mn
10	Goldman Sachs Group Inc	0000886982	1,199,578	0.50%	▼498,772	-29.37%	$8.71Mn
11	UBS Group AG	0001610520	975,555	0.41%	▲243,299	+33.23%	$7.08Mn
12	NEW YORK STATE COMMON RETIREMENT FUND	0000810265	781,049	0.33%	▲217,100	+38.50%	$5.67Mn
13	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	0001423442	722,003	0.30%	▼69,294	-8.76%	$5.24Mn
14	AMERICAN CENTURY COMPANIES INC	0000748054	691,548	0.29%	▼32,680	-4.51%	$5.02Mn
15	Sei Investments Co	0000350894	666,104	0.28%	▲81,547	+13.95%	$4.84Mn
16	Prudential Financial Inc	0001137774	657,700	0.28%	▲190,600	+40.80%	$4.77Mn
17	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	650,193	0.27%	▼19,900	-2.97%	$4.72Mn
18	D. E. Shaw & Co., Inc.	0001009207	644,960	0.27%	▲9,704	+1.53%	$4.68Mn
19	Quinn Opportunity Partners LLC	0001633275	638,745	0.27%	0	0.00%	$4.64Mn
20	State Street Corp	0000093751	607,923	0.25%	▼291,514	-32.41%	$4.41Mn

Showing 1 to 20 of 136 holders