WB · Insider Trading

Weibo Corporation

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Every open-market purchase and sale reported by WB officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

WB — Recent Form 4 Transactions (latest 2026-08-28)

Filed	Insider	Role	Type	Shares	Value
2026-08-28	Yan Wang	Director	D	−31,200	−$221.54K
2026-08-18	Hong Du	Director	MIXED	+3,145	−$23.80K
2026-08-18	Yan Wang	Director	M	+6,250	—
2026-08-06	Gaofei Wang	Chief Executive Officer	J	—	—
2026-08-06	Gaofei Wang	Chief Executive Officer	J	—	—
2026-06-25	Gaofei Wang	Chief Executive Officer	J	+374,791	—
2026-05-19	Pochin Christopher Lu	Director	M	+6,250	—
2026-05-19	Pehong Chen	Director	M	+6,250	—

WB — Current Insider Holders

Insider	Role	Shares Held	Value
Gaofei Wang	Chief Executive Officer	1,106,627	$6.91M
Pehong Chen	Director	172,626	$1.08M
Hong Du	Director	110,975	$692.48K
Pochin Christopher Lu	Director	51,950	$324.17K

WB Insider Trading FAQ

Who are the insiders at WB?

4 officers, directors and 10%+ beneficial owners currently report holdings in WB via SEC Form 4.

Are WB insiders buying or selling?

Across the 8 most recent Form 4 filings for WB, 0 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is WB insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent WB filing is dated 2026-08-28.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the WB quote page; the site-wide leaderboard is on the insider transactions hub.