$WB

$6.18 +$0.00 (0.0%) Close

$WB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 238.8M shares outstanding

Who owns WB?

By type of holder

Institutions 19.7% Insiders 0.0% Everyone else 80.3%

Concentration Top 10 holders own 13.7%

Alibaba Group Holding Ltd 3.8% · Acadian Asset Management LLC 2.1%

Institutional ownership

19.7%

+0.7 pts vs last qtr

Institutional holders

133

-10 vs last qtr

Net shares bought

+1.7M

by institutions in Q2 2026

New / sold out

16 / 26

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Polunin Capital Partners Ltd NEW +2.9M
Wellington Management Group LLP +697.8K

Biggest sellers in Q2 2026

Susquehanna International Group, LLP SOLD OUT −670.1K
Acadian Asset Management LLC −512.1K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Weibo Corp in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+20.5%

+2.09% a year

Each share's claim on the business

−17.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$57.7M vs $667M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years43% 3–5 years11% 1–3 years25% Under 1 year21%

Quarterly turnover

14.0%

of institutional shares changed hands

Top 10 managers, median time held

2.5 years

Super Investors

Investment managers reporting WB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AG Alibaba Group Holding Ltd	9.0M	3.77%	Unchanged	≤2021	12.8%
Shares held by quarter Peak holding9.0M (Q3'24) Change over 8 quarters0 Share of the company3.770% Alibaba Group Holding Ltd's full portfolio →
AA Acadian Asset Management LLC	5.1M	2.12%	−512.1K (−9.2%)	2023	0.0%
Shares held by quarter Peak holding6.1M (Q3'24) Change over 8 quarters−998.1K Share of the company2.120% Acadian Asset Management LLC's full portfolio →

Alibaba Group Holding Ltd

9.0M

% of company

3.77%

Change vs last qtr

Unchanged

Held since

≤2021

Acadian Asset Management LLC

5.1M

% of company

2.12%

Change vs last qtr

−512.1K (−9.2%)

Held since

2023

28 more super investors behind a free account

See every manager holding Weibo Corp, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting WB on Form N-PORT; together they hold 3.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
KC KraneShares CSI China Internet ETF Krane Shares Trust	$22.6M	3.1M	1.30%	0.46%	June 30, 2026
CE Causeway Emerging Markets Fund Causeway Capital Management Trust	$5.41M	745.0K	0.31%	0.13%	June 30, 2026

KraneShares CSI China Internet ETF

Krane Shares Trust

Position value

$22.6M

% of company

1.30%

% of the fund

0.46%

As of

June 30, 2026

Causeway Emerging Markets Fund

Causeway Capital Management Trust

Position value

$5.41M

% of company

0.31%

% of the fund

0.13%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Weibo Corp and how much of the fund the position is.

Comments