Complex sentence: Microsoft divested its stake in the MSNBC channel in 2005, and divested its stake in msnbc.com in July 2012, rebranding the general news site as NBCNews.com and creating a new msnbc.com as the online home of the cable news channel.
Split into simpler sentences: Microsoft divested its stake in the MSNBC channel in 2005, and divested its stake in msnbc.com in July 2012. The general news site was rebranded as NBCNews.com and a new msnbc.com was created as the online home of the cable news channel.