Former Acxiom Board Member Jeffrey Ubben Is Now Targeting Microsoft by Lance Turner Posted 7/23/2013 10:04 am Updated 3 years ago Jeffrey Ubben of ValueAct, an activist investor who once sat on the board of directors for Acxiom Corp. of Little Rock, has set his sights on a new target: Microsoft. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 15 days. Purchase Now Already have archive access? Login to view this article.