X0201 4 2003-11-06 0 0000935494 NATIONAL INSTRUMENTS CORP /DE/ nati 0001192883 DANIELS R GARY C/O NATIONAL INSTRUMENTS 11500 MOPAC BLDG B AUSTIN TX 78759 1 0 0 0 Common Stock 2003-11-06 4 M 0 14000 28.1459 A 16013 D Common Stock 2003-11-06 4 S 0 200 44.55 D 15813 D Common Stock 2003-11-06 4 S 0 3800 44.45 D 12013 D Common Stock 2003-11-06 4 S 0 10000 44.4 D 2013 D Employee Stock Option (right to buy) 28.1459 2003-11-06 4 M 0 14000 0 D 2009-07-22 Common Stock 14000 800 D Options vest and become exercisable ratably over a 60-month period from the date of the grant. David G. Hugley as attorney-in-fact for R. Gary Daniels 2003-11-07