Takes 4% stake in Twitter
Ballmer announces he has taken a 4% stake in Twitter. CEO Jack Dorsey has a 3% stake. Co-founder Evan Williams has a 6.8% stake. Twitter shares rise 5% after the tweet is determined to be authentic.
Good job @twitter,@twittermoments innovation, @jack Ceo, leaner, more focused. Glad I bought 4% past few months. Like @alwaleedbinT move too
— Steve Ballmer (@Steven_Ballmer) October 16, 2015