<SEC-DOCUMENT>0001567619-21-008431-index.html : 20210421
<SEC-HEADER>0001567619-21-008431.hdr.sgml : 20210421
<ACCEPTANCE-DATETIME>20210421210226
ACCESSION NUMBER:		0001567619-21-008431
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210421
FILED AS OF DATE:		20210421
DATE AS OF CHANGE:		20210421

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CASHMAN JAMES E III
		CENTRAL INDEX KEY:			0001199440

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25426
		FILM NUMBER:		21842975

	MAIL ADDRESS:	
		STREET 1:		2600 ANSYS DRIVE
		CITY:			CANONSBURG
		STATE:			PA
		ZIP:			15317

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: doc1.html

Document 1 - RAW XML: doc1.xml

</DOCUMENT>
</SEC-DOCUMENT>