0001140361-18-021321.txt : 20180502 0001140361-18-021321.hdr.sgml : 20180502 20180502173215 ACCESSION NUMBER: 0001140361-18-021321 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180501 FILED AS OF DATE: 20180502 DATE AS OF CHANGE: 20180502 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ROESSLEIN CHARLES J CENTRAL INDEX KEY: 0001192882 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-25426 FILM NUMBER: 18800927 MAIL ADDRESS: STREET 1: AUSTIN TELE SERVICES STREET 2: 4020 INDUSTRIAL DRIVE, SUITE 100 CITY: AUSTIN STATE: TX ZIP: 78744 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 2018-05-01 0 0000935494 NATIONAL INSTRUMENTS CORP NATI 0001192882 ROESSLEIN CHARLES J C/O NATIONAL INSTRUMENTS CORPORATION 11500 NORTH MOPAC AUSTIN TX 78759 1 0 0 0 Common Stock 2018-05-01 4 M 0 4141 A 102154 D Restricted Stock Units 2018-05-01 4 M 0 1346 0 D 2030-05-01 Common Stock 1346 0 D Restricted Stock Units 2018-05-01 4 M 0 1542 0 D 2031-05-01 Common Stock 1542 1542 D Restricted Stock Units 2018-05-01 4 M 0 1253 0 D 2032-05-01 Common Stock 1253 2506 D Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest in three equal annual installments on the anniversary of the vesting commencement date, May 1, 2015. The restricted stock units vest in three equal annual installments on the anniversary of the vesting commencement date, May 1, 2016. The restricted stock units vest in three equal annual installments on the anniversary of the vesting commencement date, May 1, 2017. David G. Hugley as attorney-in-fact for Charles J. Roesslein 2018-05-02