1 Aug 2011NATINational Instruments Corp.John Graff

Vice President

Option287$21.96$6,303

1 Aug 2011

78,783↗28 Feb 2007NATINational Instruments Corp.John Graff

Vice President

Sale10,000$27.13$271,300

28 Feb 2007

51,472↗ 1 Feb 2007NATINational Instruments Corp.John Graff

Vice President

Option10,311$9.97$102,801

1 Feb 2007

71,544↗ 1 Nov 2006NATINational Instruments Corp.John Graff

Vice President

Option5,000$9.63$48,150

1 Nov 2006

66,233↗26 Oct 2006NATINational Instruments Corp.John Graff

Vice President

Option10,000$9.63$96,300

26 Oct 2006

71,172↗ 1 Aug 2006NATINational Instruments Corp.John Graff

Vice President

Option5,653$10.41$58,848

1 Aug 2006

66,507↗ 3 Apr 2006NATINational Instruments Corp.John Graff

Vice President

Option525$20.94$10,994

3 Apr 2006

59,684↗28 Feb 2006NATINational Instruments Corp.John Graff

Vice President

Option5,000$13.91$69,550

28 Feb 2006

64,159↗ 3 Feb 2006NATINational Instruments Corp.John Graff

Vice President

Option16,112$5.93$95,544

3 Feb 2006

59,159↗ 3 Oct 2005NATINational Instruments Corp.John Graff

Vice President

Option354$20.94$7,413

3 Oct 2005

43,047↗29 Aug 2005NATINational Instruments Corp.John Graff

Vice President

Option10,000$5.93$59,300

29 Aug 2005

52,693↗ 1 Apr 2005NATINational Instruments Corp.John Graff

Vice President

Option510$22.99$11,725

1 Apr 2005

42,693↗28 Jan 2005NATINational Instruments Corp.John Graff

Vice President

Option10,000$5.93$59,300

28 Jan 2005

42,183↗ 1 Oct 2004NATINational Instruments Corp.John Graff

Vice President

Option321$25.73$8,259

1 Oct 2004

32,183↗ 1 Apr 2004NATINational Instruments Corp.John Graff

Vice President

Option628$22.71$14,262

1 Apr 2004

31,862↗ 4 Nov 2003NATINational Instruments Corp.John Graff

Vice President

Sale1,026$44.91$46,078

4 Nov 2003

20,823↗