Pehong Chen - 16 May 2026 Form 4 Insider Report for WEIBO Corp (WB)

Reporting relationship: Director
Issuer ticker: WB
Reported as of: 16 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 06:28:00 UTC
Prior SEC filing: 13 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Chen Pehong

Key filing fact

Pehong Chen filed Form 4 for WEIBO Corp (WB) on 19 May 2026.

Key facts

This page summarizes Pehong Chen's Form 4 filing for WEIBO Corp (WB).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 19 May 2026, 06:28.

Change

Previous filing in this sequence was filed on 13 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001032250 Primary reporting owner

CHEN PEHONG

Relationship: Director
Address: 8/F, QIHAO PLAZA, NO. 8, XINYUAN S. ROAD CHAOYANG DISTRICT, BEIJING, CHINA
Signature: /s/ Chen Pehong
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WB transaction

Options Exercise

Transaction value
Shares: +6,250
Change %: +25%
Price: $0.000000^*
Shares after: 31,250
Date: 16 May 2026
Ownership: Direct
Footnotes: F1

WB holding

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 141,376
Date: 16 May 2026
Ownership: Held by Trust
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WB transaction Derivative

Restricted Share

Options Exercise

Transaction value
Shares: -6,250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 16 May 2026
Ownership: Direct
Underlying class: Class A Ordinary Share, par value US$ 0.00025
Underlying amount: 6,250
Exercise price
Footnotes: F3, F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Each American depositary share represents one Class A ordinary share.

Footnote F2

The shares are held by Chen Family Trust that is established by Mr. Pehong Chen (as the settlor) for the benefit of Mr. Pehong Chen and his family, with the trustee being with Pehong Chen and Adele W Chi Trustees.

Footnote F3

Represents restricted shares granted to the reporting person pursuant to the issuer's share incentive plans. Each restricted share represents the contingent right to receive one (1) Class A ordinary share of issuer upon vesting.

Footnote F4

The restricted shares vested on May 16, 2026.

Footnote F5

The restricted shares do not have an expiration date.