Artisan Partners Asset Management, an independent investment management firm focusing on US and global equities with $74 billion under management, announced terms for its IPO on Monday. The Milwaukee, WI-based company plans to raise $322 million by offering 11.5 million shares at a price range of $27 to $29. At the midpoint of the proposed range, Artisan Partners would command a fully diluted market value of $1.86 billion. Artisan Partners Asset Management, which was founded in 1994 and booked $506 million in revenues for the 12 months ended 12/31/2012, plans to list on the NYSE under the symbol APAM. Citi and Goldman Sachs are the joint bookrunners on the deal.