0001140361-12-014967.txt : 20120312 0001140361-12-014967.hdr.sgml : 20120310 20120312170029 ACCESSION NUMBER: 0001140361-12-014967 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120201 FILED AS OF DATE: 20120312 DATE AS OF CHANGE: 20120312 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: NATIONAL INSTRUMENTS CORP /DE/ CENTRAL INDEX KEY: 0000935494 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 741871327 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 11500 NORTH MOPAC EXPRESSWAY CITY: AUSTIN STATE: TX ZIP: 78759 BUSINESS PHONE: 5123389119 MAIL ADDRESS: STREET 1: 11500 NORTH MOPAC EXPRESSWAY CITY: AUSTIN STATE: TX ZIP: 78759 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: DAVERN ALEXANDER M CENTRAL INDEX KEY: 0001192890 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-25426 FILM NUMBER: 12684645 MAIL ADDRESS: STREET 1: C/O NATIONAL INSTRUMENTS STREET 2: 11500 MOPAC BLDG C CITY: AUSTIN STATE: TX ZIP: 78759 4 1 doc1.xml FORM 4 X0304 4 2012-02-01 0 0000935494 NATIONAL INSTRUMENTS CORP /DE/ NATI 0001192890 DAVERN ALEXANDER M C/O NATIONAL INSTRUMENTS CORP 11500 N. MOPAC BLDG C AUSTIN TX 78759 0 1 0 0 COO, CFO & Executive VP Common Stock 2012-02-01 5 M 0 462 22.7035 A 44498 D Acquisition of stock under Issuer's employee stock purchase plan. David G. Hugley as attorney-in-fact for Alexander M. Davern 2012-03-12