X0306 4/A 2013-05-21 2013-05-21 0000356213 PINNACLE ENTERTAINMENT INC. PNK 0001209596 MARTINEAU JAMES L C/O PINNACLE ENTERTAINMENT, INC. 8918 SPANISH RIDGE AVENUE LAS VEGAS NV 89148 1 0 0 1 Vice Chairman of the Board Common Stock 2013-05-21 4 A 0 7357 0 A 44457 D Common Stock 4166 I By Spouse Common Stock 2025 I By Individual Retirment Account for Spouse This amended Form 4 updates the form of ownership of shares of common stock beneficially owned by the reporting person to reflect that (a) 4,166 shares of common stock are held indirectly by the reporting person's spouse; and (b) 2,025 shares of common stock are held indirectly by an individual retirement account for the benefit of the reporting person's spouse. These shares of common stock had been previously reported as being directly held in the reporting person's Form 4s filed on May 21, 2013, May 7, 2013, August 31, 2012, May 23, 2012, May 16, 2012, August 22, 2011, May 25, 2011, May 20, 2010, and May 12, 2010, and amended Form 4 filed on March 23, 2005. /s/ Elliot D. Hoops, Attorney-In-Fact for James L. Martineau 2013-12-16