Move over Ackman, meet activism's penny pincher By: CNBC.com News May 12, 2014 at 14:10 PM EDT Art Lipson of Western Investment isn't your typical activist. He's waging war against Anworth Mortgage for what may only be a few percentage points. Read More >> Related Stocks: Anworth Mortgage Asset Corp Costco Wholesale Procter & Gamble Sentinelone Inc Cl A Wal-Mart Stores, Inc.