0001140361-18-013124.txt : 20180312 0001140361-18-013124.hdr.sgml : 20180312 20180312191829 ACCESSION NUMBER: 0001140361-18-013124 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180201 FILED AS OF DATE: 20180312 DATE AS OF CHANGE: 20180312 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Starkloff Eric Howard CENTRAL INDEX KEY: 0001574827 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-25426 FILM NUMBER: 18684873 MAIL ADDRESS: STREET 1: 11500 NORTH MOPAC STREET 2: BUILDING C CITY: AUSTIN STATE: TX ZIP: 78759 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: NATIONAL INSTRUMENTS CORP 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 FORMER COMPANY: FORMER CONFORMED NAME: NATIONAL INSTRUMENTS CORP /DE/ DATE OF NAME CHANGE: 19950113 4 1 doc1.xml FORM 4 X0306 4 2018-02-01 0 0000935494 NATIONAL INSTRUMENTS CORP NATI 0001574827 Starkloff Eric Howard C/O NATIONAL INSTRUMENTS CORPORATION 11500 NORTH MOPAC AUSTIN TX 78759 0 1 0 0 Executive Vice President Common Stock 2018-02-01 5 M 0 261 38.25 A 10594 D Acquisition of stock under Issuer's employee stock purchase plan. David G. Hugley as attorney-in-fact for Eric H. Starkloff 2018-03-12