--- description: Twitter CEO Dick Costolo is stepping down from his position, the company unexpectedly announced Thursday. Jack Dorsey will be interim CEO. title: Twitter CEO Dick Costolo Stepping Down image: https://static.time.com/v3/assets/bltea6093859af6183b/blt0d1447134ba208ce/6988542af887dc22c8e90e45/dick-costolo.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [Business](/section/business/) ## Business Update your preferences in [Account Settings](/account/preferences/) Close * [Social Networking](/tag/social-networking/) ## Social Networking Update your preferences in [Account Settings](/account/preferences/) Close # Twitter CEO Dick Costolo Stepping Down  by [Dan Kedmey](/author/dan-kedmey/)  ## Dan Kedmey Update your preferences in [Account Settings](/account/preferences/) Close Jun 11, 2015 8:39 PM CUT  Dick Costolo, CEO of Twitter, in an interview at CNBC's San Francisco bureau, on April 29, 2015 Dick Costolo, CEO of Twitter, in an interview at CNBC's San Francisco bureau, on April 29, 2015CNBC Media/Getty Images  by [Dan Kedmey](/author/dan-kedmey/)  ## Dan Kedmey Update your preferences in [Account Settings](/account/preferences/) Close Jun 11, 2015 8:39 PM CUT Twitter CEO Dick Costolo is stepping down from his position, the company unexpectedly [announced](http://files.shareholder.com/downloads/AMDA-2F526X/5194612x0x835061/73F87749-004E-4043-9144-AAC4E73E53FE/Press%5FRelease%5FFINAL.pdf "undefined") Thursday. Twitter co-founder Jack Dorsey will serve as interim CEO starting July 1 while the board of directors searches for a successor. “I am tremendously proud of the Twitter team and all that the team has accomplished together during my six years with the Company,” Costolo said in a public statement. “I am deeply appreciative of the confidence the Board, the management team and the employees have placed in me over the years, and I look forward to supporting Twitter however I can going forward.” The announcement comes amid mounting [pressure](http://time.com/3657270/twitter-2015/ "undefined") from shareholders and activist investors for Twitter to shake up its leadership and start growing revenue and user numbers. Twitter’s stock is up about 7% in after-hours trading Thursday afternoon. [Twitter Inc. – Stock Price and Volume | FindTheCompany](http://listings.findthecompany.com/l/445483/Twitter-Inc-in-San-Francisco-CA#stock%20info&s=1sLeQ7 "undefined") Costolo also posted the news to his Twitter account, welcoming Dorsey into his new role: > [](https://twitter.com/dickc/status/609090180725678080) > [](https://twitter.com/Stammy/status/609091096115699712) > [](https://twitter.com/jack/status/609103637009149952) > [](https://twitter.com/Stammy/status/609091096115699712) ### See What Your Twitter Profile Looked Like Over the Last 10 Years  2006 Wayback Machine  2007 Wayback Machine  2008 Wayback Machine  2009 Wayback Machine  2010 Wayback Machine  2011 Wayback Machine  2012 Wayback Machine  2013 The Next Web  2014 TIME ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3918292/twitter-dick-costolo-ceo/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3918292/twitter-dick-costolo-ceo/"},"headline":"Twitter CEO Dick Costolo Stepping Down","datePublished":"2015-06-11T20:39:02.000Z","dateModified":"2026-05-11T04:44:43.058Z","description":"Co-founder Jack Dorsey taking over as interim chief","url":"https://time.com/3918292/twitter-dick-costolo-ceo/","keywords":["Social Networking","Tech","twitter","Jack Dorsey"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0d1447134ba208ce/6988542af887dc22c8e90e45/dick-costolo.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Dan Kedmey","jobTitle":null,"url":"https://time.com/author/dan-kedmey/"}],"articleSection":"Business","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt0d1447134ba208ce/6988542af887dc22c8e90e45/dick-costolo.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Squawk Alley","caption":"Squawk Alley","creditText":"CNBC Media/Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/business/","name":"Business"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/social-networking/","name":"Social Networking"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/3918292/twitter-dick-costolo-ceo/","name":"Twitter CEO Dick Costolo Stepping Down"}}]}] ```