Weibo Corporation-Prof 4 年度 3 月 30 日至 23 日的年度股東大會反對棄權 第 1 號決議。根據公司的備忘錄和公司章程，洪杜女士將在本次年度股東大會上再次當選為公司董事， 將繼續任職至退休。 第 2 號決議。根據公司的備忘錄和公司章程，陳培宏先生將在本次年度股東大會上再次當選為公司董事， 將任職至退休。 第 3 號決議。根據公司的備忘錄和公司章程，王巖先生將在本次年度股東大會上再次當選為公司董事， 將任職至退休。 第 4 號決議。對公司的第三次修訂和重述的公司備忘錄和細則（“現有的 公司章程”）進行修訂和重述，全部刪除，並以 代替隨附的股東周年大會通知所附的第四次修訂和重述的公司章程備忘錄和章程（ “新公司章程”），以提出 (i) 等符合對 香港上市規則附錄3的適用修訂的現有組織章程細則，以及 (ii) 在 擬議採用《新公司章程》的同時，做出其他相應的內部變更。 微博公司 致代表 微博公司 A 類普通股的美國存托股份（“ADS”）的註冊持有人 年度股東大會 請在下方簽名日期： 請在本卡正面和存託機構賬簿上完全按照您的姓名 簽署。共同所有者 應各自親自簽名。受託人和其他受託人應註明 他們簽署的身份，如果出現多個名字，則必須有 多數人簽署。如果是公司，則該簽名應是 授權官員的簽名，該官員應説明自己的頭銜。 在此處摺疊並分離 請參閲此卡片的背面，瞭解將在會議上表決的決議。 地址變更在下方選中方框，簽名並註明更改/評論： 如果您想向公司指定的人員提供全權委託 代理人，請在右邊標記方框。 請注意：標記此方框會使上述任何其他 説明失效。 摩根大通銀行，北卡羅來納州，存託機構 郵政信箱 64873 明尼蘇達州聖保羅 55164-0873

Weibo Corporation - Proof 4 30-Mar-23 Annual General Meeting 1. As an ordinary resolution: THAT Ms. Hong Du shall be re-elected as a director of the Company at this annual general meeting and retain office until her retirement pursuant to the Company’s memorandum and articles of association. 2. As an ordinary resolution: THAT Mr. Pehong Chen shall be re-elected as a director of the Company at this annual general meeting and retain office until his retirement pursuant to the Company’s memorandum and articles of association. 3. As an ordinary resolution: THAT Mr. Yan Wang shall be re-elected as a director of the Company at this annual general meeting and retain office until his retirement pursuant to the Company’s memorandum and articles of association. 4. As a special resolution: THAT the Company’s Third Amended and Restated Memorandum and Articles of Association (the “Existing Articles of Association”) in effect be amended and restated by the deletion in their entirety and by the substitution in their place of the Fourth Amended and Restated Memorandum and Articles of Association (the “New Articles of Association”) annexed to the accompanying AGM notice for the purposes of, among others, (i) bringing the Existing Articles of Association in line with applicable amendments made to Appendix 3 to Hong Kong Listing Rules, and (ii) making other consequential and housekeeping changes in conjunction with the proposed adoption of the New Articles of Association. Weibo Corporation JPMorgan Chase Bank, N.A., Depositary PO Box 64873, Saint Paul MN 55164-0873 Voting Instruction Card PLEASE MARK, DATE AND SIGN ON REVERSE SIDE AND RETURN PROMPTLY IN THE ENCLOSED ENVELOPE. JPMorgan Chase Bank, N.A. (the “Depositary”) has received advice that the Annual General Meeting (the “Meeting”) of Weibo Corporation, a Cayman Islands company, (the “Company”) will be held at 2:00 p.m. (Hong Kong time) on Wednesday, May 24, 2023, at 5809-5810, Two International Finance Centre, 8th Finance Street, Central, Hong Kong, for the purposes set forth on this card. If you are desirous of having the Depositary, through its Nominee or Nominees, vote or execute a proxy to vote the Class A Ordinary Shares of the Company (the “Shares”) represented by your ADSs FOR or AGAINST or to ABSTAIN from voting on the Resolutions to be proposed at the Meeting, kindly execute and forward to the Depositary, the attached Voting Instruction Card. The enclosed postage-paid envelope is provided for this purpose. This Voting Instruction Card should be executed in such a manner as to show clearly whether you desire the Nominee or the Nominees of the Depositary to vote FOR or AGAINST or to ABSTAIN from the Resolutions, or any of them, as the case may be. Alternatively, you may include instructions to give a discretionary proxy to a person designated by the Company. The Voting Instruction Card MUST be forwarded in sufficient time to reach the Depositary before 9:00 a.m. (Eastern Time), May 15, 2023. Only the registered holders of record as of the close of business on April 21, 2023, will be entitled to execute the attached Voting Instruction Card. The signatory, a registered holder of ADSs representing Shares of the Company, of record on April 21, 2023, hereby requests and authorizes the Depositary, through its Nominee or Nominees, to vote or execute a proxy to vote at the Meeting the underlying Shares of the Company represented by ADSs, in accordance with the instructions given on this card. NOTE: In order to have the aforesaid shares voted, this Voting Instruction Card MUST be returned before 9:00 a.m. (Eastern Time), on May 15, 2023. To view the proxy materials, please visit http://ir.weibo.com/ JPMorgan Chase Bank, N.A., Depositary