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Form 3 WEIBO Corp For: Mar 13 Filed by: Cao Zenghui

March 13, 2026 6:37 AM
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Cao Zenghui
(Last) (First) (Middle)
8/F, QIHAO PLAZA, NO. 8
XINYUAN S. ROAD CHAOYANG DISTRICT
(Street)
BEIJING F4 100027
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/13/2026 		3. Issuer Name and Ticker or Trading Symbol
WEIBO Corp [ WB ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
Officer (give title below) X Other (specify below)
Senior Vice President
 5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
ADS (1) 101,705
D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) 03/16/2023 03/17/2029 Class A Ordinary Share 12,500 21.15 D
Stock Option (Right to Buy) 09/16/2023 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 03/16/2024 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 09/16/2024 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 03/16/2025 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 09/16/2025 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 03/16/2026 03/17/2029 Class A Ordinary Share 6,250 21.15 D
Stock Option (Right to Buy) 08/14/2021 08/15/2027 Class A Ordinary Share 10,000 32.68 D
Stock Option (Right to Buy) 02/14/2022 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 08/14/2022 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 02/14/2023 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 08/14/2023 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 02/14/2024 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 08/14/2024 08/15/2027 Class A Ordinary Share 5,000 32.68 D
Stock Option (Right to Buy) 07/06/2024 07/07/2030 Class A Ordinary Share 10,000 3.87 D
Stock Option (Right to Buy) 01/06/2025 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 07/06/2025 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 01/06/2026 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 07/06/2026 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 01/06/2027 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 07/06/2027 07/07/2030 Class A Ordinary Share 5,000 3.87 D
Stock Option (Right to Buy) 10/31/2026 11/01/2032 Class A Ordinary Share 10,000 2.93 D
Stock Option (Right to Buy) 04/30/2027 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Stock Option (Right to Buy) 10/31/2027 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Stock Option (Right to Buy) 04/30/2028 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Stock Option (Right to Buy) 10/31/2028 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Stock Option (Right to Buy) 04/30/2029 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Stock Option (Right to Buy) 10/31/2029 11/01/2032 Class A Ordinary Share 5,000 2.93 D
Explanation of Responses:
1. Each American depositary share represents one Class A ordinary share.
/s/ Cao Zenghui 03/13/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

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