MSFT Related 13Ds

Apr 22, 2013 12:30 PM UPDATE: ValueAct's Ubben: Microsoft is 'Compelling' Investment

Apr 22, 2013 09:19 AM Activist Hedge Fund Takes Massive Stake in Microsoft (MSFT); Does He Want Ballmer's Head on a Stick?

Apr 22, 2013 09:10 AM ValueAct to disclose $2 billion stake in Microsoft (MSFT) - CNBC Faber

May 15, 2008 08:44 AM Icahn sends open letter to Yahoo!'s (YHOO) board; Urges Yahoo to negotiate merger with Microsoft - Bloomberg