SUPPLEMENT TO PROXY STATEMENT
FOR 2020 ANNUAL MEETING OF STOCKHOLDERS
To Be Held at 10:00 a.m. Pacific Time on Wednesday, May 27, 2020
Dear Stockholders of Twitter, Inc.:
We are
providing this proxy statement supplement (the Supplement) to the proxy statement dated April 15, 2020 (the Proxy Statement), for the 2020 Annual Meeting of Stockholders (the 2020 Annual Meeting) of
Twitter, Inc., a Delaware corporation (Twitter or the Company), to be held on Wednesday, May 27, 2020, at 10:00 a.m., Pacific time. Both stockholders of record and street name stockholders will be able to attend the
Annual Meeting via live audio webcast, submit their questions during the meeting and vote their shares electronically at the Annual Meeting by visiting www.virtualshareholdermeeting.com/TWTR2020.
The purpose of the Supplement is to provide information relating to the recent appointment of
Dr. Fei-Fei Li to our board of directors. Except as specifically amended or supplemented by the information contained in the Supplement, all information set forth in the Proxy Statement remains unchanged
and should be considered in voting your shares.
CHANGES TO COMPOSITION OF THE BOARD OF DIRECTORS
Appointment of Fei-Fei Li to the board of directors
On May 11, 2020, Twitter announced that the board of directors of Twitter appointed
Dr. Fei-Fei Li, 43, as a member of the board of directors. Our board of directors is divided into three classes of directors, each serving a staggered three-year term. Dr. Li was appointed as a
Class II Director and her term will continue until the 2021 annual meeting of stockholders and until her successor is duly elected and qualified.
Dr. Li, 43, is the inaugural Sequoia Professor in the Computer Science Department at Stanford University, and Co-Director of Stanfords Human-Centered Artificial Intelligence Institute. She served as the Director of Stanfords Artificial Intelligence Lab from 2013 to 2018. From January 2017 to September 2018,
Dr. Li was Vice President, Google Cloud AI and Chief Scientist of AI/Machine Learning at Google Cloud. She joined Stanford in 2009 as an assistant professor. Prior to that, from 2007 to 2009, she was on faculty at Princeton University and, from
2005 to 2006 at University of Illinois Urbana-Champaign. Dr. Li is a co-founder and Chairperson of the Board of AI4ALL, a 501(c)(3) nonprofit organization dedicated to increasing diverse human
representation in the field of AI and technology. She is also an elected member of the National Academy of Engineering. Dr. Li obtained her B.A. degree in physics from Princeton in 1999 with High Honors, and her PhD degree in electrical
engineering from California Institute of Technology (Caltech) in 2005.
Twitter believes that Dr. Lis in-depth knowledge of the technology sector and extensive engineering, computer science, and artificial intelligence experience make her a valuable member of the Board.
There are no arrangements or understandings between Dr. Li, on the one hand, and the Company or any other persons, on the other hand,
pursuant to which Dr. Li was selected as a director. There are no related party transactions between the Company and Dr. Li (or any of her immediate family members) requiring disclosure under Item 404(a) of Regulation S-K. Dr. Li does not have any family relationships with any of the Companys directors or executive officers.
Dr. Li will participate in the director benefits arrangements applicable to non-employee directors as
described in the Proxy Statement. As of the date hereof, she does not beneficially own any shares of our common stock. In addition, the Company will enter into its standard form of indemnification agreement with Dr. Li.
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