Management

Richard Costolo, Chief Executive Officer

Mr. Costolo has served as our Chief Executive Officer since October 2010 and as a member of our board of directors since September 2009. From September 2009 to October 2010, Mr. Costolo served as our Chief Operating Officer. From June 2007 to June 2009, Mr. Costolo served as Group Product Manager at Google Inc., a provider of Internet-related products and services. From October 2003 to May 2007, Mr. Costolo served as Co-Founder and Chief Executive Officer of FeedBurner, Inc., an RSS subscription feed provider, which was acquired by Google in 2007. Mr. Costolo holds a B.S. in Computer Science from the University of Michigan, Ann Arbor.

Ali Rowghani, Chief Operating Officer

Mr. Rowghani has served as our Chief Operating Officer since December 2012 and served as our Chief Financial Officer from March 2010 to December 2012. From June 2002 to March 2010, Mr. Rowghani served in several roles at Pixar Animation Studios, Inc., a computer animation film studio, including as Chief Financial Officer and Senior Vice President of Strategic Planning. Mr. Rowghani holds a B.A. in International Relations and an M.B.A. from Stanford University.

Mike Gupta, Chief Financial Officer

Mr. Gupta has served as our Chief Financial Officer since December 2012 and served as our Vice President of Corporate Finance and Treasurer from November 2012 to December 2012. From May 2011 to November 2012, Mr. Gupta served in two roles at Zynga Inc., an online provider of social game services, including as Senior Vice President and Treasurer. From February 2003 to May 2011, Mr. Gupta served in several roles at Yahoo! Inc., an Internet company, including as Senior Vice President of Corporate Development and Finance and Chief Treasury Officer. Mr. Gupta holds a B.S. in Accounting and Economics from New York University and an M.B.A. from the University of Chicago.

Adam Bain, President of Global Revenue

Mr. Bain has served as our President of Global Revenue since September 2010. From September 1999 to September 2010, Mr. Bain served in several roles at News Corporation, a diversified media company, including as Executive Vice President of Products & Technology and as President of its advertising arm, Fox Audience Network, Inc. Mr. Bain holds a B.A. in English Journalism from Miami University.

Christopher Fry, Senior Vice President of Engineering

Mr. Fry has served as our Senior Vice President of Engineering since March 2013. From April 2012 to March 2013, Mr. Fry served as our Vice President of Engineering. From June 2005 to April 2012, Mr. Fry served in several roles at salesforce.com, inc., an enterprise software company, including as Senior Vice President, Development. Mr. Fry holds a B.A. in Cognitive Science from Vassar College and a Ph.D. in Cognitive Science from the University of California, San Diego.

Adam Messinger, Chief Technology Officer

As CTO, Adam is responsible for long term technology direction and overseeing our technical architecture. He was previously VP of Application Development, where he led various teams, including mobile and web apps, design, search, relevance, and advertising. Prior to joining Twitter in 2011, Adam was Vice President of Development at Oracle where he lead the development of Java and Exalogic. Earlier in his career he worked at O'Reilly AlphaTech Ventures, WebLogic, Organic, and the Santa Fe Institute.

Adam is a graduate of the Stanford Graduate School of Business where he was a Sloan Fellow and of Willamette University where he was a G. Herbert Smith Scholar. He is @adam_messinger on Twitter.

Vijaya Gadde, General Counsel and Secretary

Ms. Gadde has served as our General Counsel and Secretary since August 2013 and served as our Director, Legal from July 2011 to August 2013. From October 2010 to July 2011, Ms. Gadde served as Senior Director and Associate General Counsel, Corporate, at Juniper Networks, Inc., a provider of network infrastructure products and services. From October 2000 to April 2010, Ms. Gadde was an attorney at Wilson Sonsini Goodrich & Rosati, P.C. Ms. Gadde holds a B.S. in Industrial and Labor Relations from Cornell University and a J.D. from New York University School of Law.

Colin Crowell, Vice President, Global Public Policy

Colin Crowell is Vice President of Global Public Policy for Twitter, Inc. In this role, Colin oversees Twitter's efforts to educate policymakers on Twitter's services and policies and manages the company's public policy agenda on a host of high tech issues in Washington, D.C. and internationally.

Prior to joining Twitter, Colin served for over 20 years as a telecommunications and Internet staffer to U.S. Representative Edward J. Markey (D-MA), the longtime Chairman and Ranking Democrat on the House Telecommunications & Internet Subcommittee. Subsequent to working on Capitol Hill, Colin was Senior Counselor to Federal Communications Commission Chairman Julius Genachowski, assisting in the development of the National Broadband Plan, and serving as the Chairman's strategic advisor on a wide range of policy matters including wireless policy, Internet freedom, user privacy, broadband deployment and competition, among others.

Prior to working in Washington, Colin was a Jesuit International Volunteer in Arequipa, Peru, where he taught mathematics and English at a Jesuit high school and helped run a community soup kitchen. Colin is a graduate of Boston College with a BA in Political Science and a minor in Computer Science. He is @ColinCrowell on Twitter.

Kevin Weil, Vice President of Revenue Products

Kevin Weil is the Vice President of Revenue Products at Twitter, where his team is responsible for developing and refining Twitter's monetization products. Previously, he led the company's analytics team.

Prior to Twitter, Kevin was the first employee at web media startup Cooliris, working in user growth and advertising-focused analytics. He has also worked at municipal wireless network provider Tropos Networks and Microsoft Research and, in a past life, as a physics Ph.D. student at the Stanford Linear Accelerator Center. He holds a B.A. in Mathematics and Physics from Harvard University, and an M.A. in Physics from Stanford. He is @kevinweil on Twitter.