Jun 11, 2015 4:50 PM by News Staff
NEW YORK (AP) - Dick Costolo will step down as CEO of Twitter after almost five years. It did not disclose a reason for his departure.
Twitter Inc. announced the move in a press release Thursday and Costolo also tweeted the news through his own account.
The San Francisco company says co-founder and Chairman Jack Dorsey, 38, will be its interim CEO while it looks for a replacement.
Costolo, 51, will stay on Twitter's board of directors. He has been a director since September 2009 and became CEO in October 2010.
Copyright 2015 The Associated Press. All rights reserved.
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