Weibo (NASDAQ: WB) SVP Cao Zenghui details options and 101,705 ADS

Rhea-AI Filing Summary

WEIBO Corp senior vice president Cao Zenghui has filed an initial Form 3 reporting his equity holdings in the company. The filing lists multiple stock option awards over Class A ordinary shares, including rights to buy 12,500 shares at 21.1500 per share expiring on 2029-03-17, and several additional tranches at exercise prices of 32.6800, 3.8700 and 2.9300 with expirations through 2032-11-01. He also reports direct ownership of 101,705 American depositary shares, and a footnote states that each American depositary share represents one Class A ordinary share.

SEC Form 3

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 5 (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.
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FAQ

What does Cao Zenghui’s Form 3 filing for WEIBO Corp (WB) show?

The Form 3 shows Cao Zenghui’s existing equity holdings in WEIBO Corp, including several stock option awards and 101,705 American depositary shares. It establishes his baseline ownership as a senior vice president and does not report any new purchases or sales.

How many WEIBO (WB) American depositary shares does Cao Zenghui hold?

Cao Zenghui reports direct ownership of 101,705 American depositary shares of WEIBO Corp. A footnote explains that each American depositary share represents one Class A ordinary share, linking the ADS position to the underlying ordinary equity of the company.

What stock options are reported in Cao Zenghui’s WEIBO (WB) Form 3?

The filing lists multiple stock option grants over Class A ordinary shares, with exercise prices of 21.1500, 32.6800, 3.8700, and 2.9300 per share. These options have staggered vesting and expiration dates extending as far as 2032-11-01.

Are there any buy or sell transactions in this WEIBO (WB) Form 3?

No buy or sell transactions are reported. All entries are categorized as holdings, and the transaction summary shows zero buys, zero sells and 29 holding entries. The Form 3 serves as an initial statement of beneficial ownership rather than a record of trades.

What does the ADS footnote in the WEIBO (WB) Form 3 mean?

The footnote states that each American depositary share represents one Class A ordinary share. This clarifies that Cao Zenghui’s 101,705 ADS correspond to the same number of underlying Class A ordinary shares, simplifying comparison with other ownership figures in ordinary-share terms.