0001140361-11-022943.txt : 20110422
0001140361-11-022943.hdr.sgml : 20110422
20110422151121
ACCESSION NUMBER: 0001140361-11-022943
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20110420
FILED AS OF DATE: 20110422
DATE AS OF CHANGE: 20110422
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Porterfield Robert
CENTRAL INDEX KEY: 0001307795
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 000-25426
FILM NUMBER: 11775658
MAIL ADDRESS:
STREET 1: 11500 N. MOPAC EXPWY
CITY: AUSTIN
STATE: TX
ZIP: 78759
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
4
1
doc1.xml
FORM 4
X0303
4
2011-04-20
0
0000935494
NATIONAL INSTRUMENTS CORP /DE/
NATI
0001307795
Porterfield Robert
C/O NATIONAL INSTRUMENTS CORP
11500 N. MOPAC EXPWY
AUSTIN
TX
78759
0
1
0
0
Vice President
Restricted Stock Units
2011-04-20
4
A
0
6000
0
A
2026-05-01
Common Stock
6000
6000
D
Restricted Stock Units
2011-04-20
4
A
0
6000
0
A
2026-05-01
Common Stock
6000
6000
I
Spouse
Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
The restricted stock units vest and become exercisable based on time and performance milestones set by the Issuer.
David G. Hugley as attorney-in-fact for Robert R. Porterfield
2011-04-22