X0303 4 2010-11-03 0000356213 PINNACLE ENTERTAINMENT INC. PNK 0001318770 Uboldi Alain Jean Jose C/O PINNACLE ENTERTAINMENT, INC. 8918 SPANISH RIDGE AVENUE LAS VEGAS NV 89148 0 1 0 0 Exec. Vice Pres. Common Stock 2010-11-03 4 M 0 4250 6.70 A 31750 D Common Stock 2010-11-03 4 S 0 4250 13.51 D 27500 D Common Stock 2010-11-03 4 M 0 3750 5.95 A 31250 D Common Stock 2010-11-03 4 S 0 3750 13.51 D 27500 D Common Stock 2010-11-03 4 M 0 22500 9.62 A 50000 D Common Stock 2010-11-03 4 S 0 22500 13.51 D 27500 D Common Stock 2010-11-03 4 M 0 7500 6.75 A 35000 D Common Stock 2010-11-03 4 S 0 7500 13.51 D 27500 D Common Stock 2010-11-04 4 M 0 3750 6.70 A 31250 D Common Stock 2010-11-04 4 S 0 3750 14.01 D 27500 D Common Stock 2010-11-04 4 M 0 1250 5.95 A 28750 D Common Stock 2010-11-04 4 S 0 1250 14.01 D 27500 D Common Stock 2010-11-04 4 M 0 7500 9.62 A 35000 D Common Stock 2010-11-04 4 S 0 7500 14.01 D 27500 D Common Stock 2010-11-04 4 M 0 2500 6.75 A 30000 D Common Stock 2010-11-04 4 S 0 2500 14.01 D 27500 D Stock Options (Right to Buy) 6.70 2010-11-03 4 M 0 4250 0 D 2011-11-05 Common Stock 4250 3750 D Stock Options (Right to Buy) 5.95 2010-11-03 4 M 0 3750 0 D 2012-01-29 Common Stock 3750 1250 D Stock Options (Right to Buy) 9.62 2010-11-03 4 M 0 22500 0 D 2012-06-18 Common Stock 22500 7500 D Stock Options (Right to Buy) 6.75 2010-11-03 4 M 0 7500 0 D 2013-08-14 Common Stock 7500 2500 D Stock Options (Right to Buy) 6.70 2010-11-04 4 M 0 3750 0 D 2011-11-05 Common Stock 3750 0 D Stock Options (Right to Buy) 5.95 2010-11-04 4 M 0 1250 0 D 2012-01-29 Common Stock 1250 0 D Stock Options (Right to Buy) 9.62 2010-11-04 4 M 0 7500 0 D 2012-06-18 Common Stock 7500 0 D Stock Options (Right to Buy) 6.75 2010-11-04 4 M 0 2500 0 D 2013-08-14 Common Stock 2500 0 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2010. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.50 to $13.58, inclusive. The reporting person undertakes to provide to Pinnacle Entertainment, Inc., any security holder of Pinnacle Entertainment, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.00 to $14.06, inclusive. The reporting person undertakes to provide to Pinnacle Entertainment, Inc., any security holder of Pinnacle Entertainment, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnote (3) to this Form 4. The stock options vested in three equal annual installments on November 5, 2002, November 5, 2003, and November 5, 2004. The stock options vested in three equal annual installments on January 29, 2003, January 29, 2004, and January 29, 2005. The stock options vested in five equal annual installments on June 18, 2003, June 18, 2004, June 18, 2005, June 18, 2006 and June 18, 2007. The stock options vested in five equal annual installments on August 14, 2004, August 14, 2005, August 14, 2006, August 14, 2007 and August 14, 2008. /s/ Elliot D. Hoops, Attorney-In-Fact for Alain Jean Jose Uboldi 2010-11-05