Insider Transactions

Date	Name	Title	Type	Shares Traded	Price Range
Nov 4, 2010	Semlinger, Scott h	Officer	Sell	26,250	50.87 - 51.02
Feb 19, 2010	Semlinger, Scott h	Officer	Option Execute	3,600	18.50
Feb 19, 2010	Semlinger, Scott h	Officer	Sell	3,600	76.53 - 77.19
Nov 12, 2007	Semlinger, Scott h	Officer	Option Execute	736	12.16
Nov 12, 2007	Semlinger, Scott h	Officer	Sell	736	55.11 - 56.68
Nov 12, 2007	Semlinger, Scott h	Officer	Option Execute	4,764	12.16
Nov 12, 2007	Semlinger, Scott h	Officer	Sell	4,764	55.00 - 55.09
Nov 9, 2007	Semlinger, Scott h	Officer	Option Execute	1,800	18.50
Nov 9, 2007	Semlinger, Scott h	Officer	Sell	1,800	55.64 - 56.33
Nov 9, 2007	Semlinger, Scott h	Officer	Option Execute	1,800	18.50
Nov 9, 2007	Semlinger, Scott h	Officer	Sell	1,600	55.62 - 55.95
Nov 7, 2007	Semlinger, Scott h	Officer	Sell	200	55.85
May 2, 2012	Smith, Douglas V	Director	Acquisition (Non Open Market)	1,617	n/a
Nov 30, 2010	Smith, Douglas V	Director	Option Execute	20,000	30.49
Nov 30, 2010	Smith, Douglas V	Director	Sell	20,000	50.49 - 51.10
Nov 24, 2010	Smith, Douglas V	Director	Option Execute	10,000	30.49
Nov 24, 2010	Smith, Douglas V	Director	Sell	10,000	51.05 - 51.59
Nov 22, 2010	Smith, Douglas V	Director	Sell	10,000	50.00 - 50.37
Nov 19, 2010	Smith, Douglas V	Director	Option Execute	20,000	30.49
Nov 19, 2010	Smith, Douglas V	Director	Sell	10,000	50.00 - 50.05
Showing 121-140 of 254 transactions Page: 1 2 3 4 5 6 7 8 9 10 11 12 13  See Previous 20 | See Next 20

Stock transaction information provided by EDGAR Online. Lufkin Industries, Inc. makes no representation or warranty with respect to any of the information contained herein, takes no responsibility for supplementing, updating or correcting any such information and shall have no liability with respect to any such information. This listing does not include derivatives, such as stock option grants or shares purchased through an employee stock purchase plan. For recent transactions, including derivative transactions, see our Section 16 SEC filings page.