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Home > Insider Trading > Filing (0001140361-11-013492)

Filing Details

Accession Number:: 0001140361-11-013492
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-03-02 16:38:11
Reporting Period:: 2011-02-01

Filing Date:: 2011-03-02
Accepted Time:: 2011-03-02 16:38:11
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
935494	National Instruments Corp	NATI	Services-Prepackaged Software (7372)	741871327

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1307795	Robert Porterfield	C/O National Instruments Corp 11500 N. Mopac Expwy Austin TX 78759	Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2011-02-01	234	$29.55	48,085	No	5	M	Indirect	by Spouse
Common Stock	Disposition	2011-02-28	8,514	$31.18	63,613	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	5	M	Indirect	by Spouse
No	4	S	Direct

Footnotes

Acquisition of stock under Issuer's employee stock purchase plan.
On February 22, 2011, the common stock of National Instruments Corporation split 3-for-2, resulting in the reporting person's ownership of 24,042 additional shares of common stock.