<SEC-DOCUMENT>0001140361-23-018011-index.html : 20230412
<SEC-HEADER>0001140361-23-018011.hdr.sgml : 20230412
<ACCEPTANCE-DATETIME>20230412163528
ACCESSION NUMBER:		0001140361-23-018011
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20230412
DATE AS OF CHANGE:		20230412

FILER:

	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

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41595
		FILM NUMBER:		23816093

	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>DEFA14A
<SEQUENCE>1
<FILENAME>brhc20051364_defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: brhc20051364_defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2.1
<SEQUENCE>2
<FILENAME>brhc20051364_ex2-1.htm
<DESCRIPTION>EXHIBIT 2.1
<TEXT>
Document 2 - file: brhc20051364_ex2-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>3
<FILENAME>brhc20051364_ex4-1.htm
<DESCRIPTION>EXHIBIT 4.1
<TEXT>
Document 3 - file: brhc20051364_ex4-1.htm

</DOCUMENT>
</SEC-DOCUMENT>