Delaware
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000-25426
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74-1871327
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(State
or other jurisdiction of incorporation)
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(Commission
File Number)
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(IRS
Employer
Identification
No.)
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[ ]
Written communications pursuant to Rule 425 under the Securities Act (17
CFR 230.425)
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[ ]
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)
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[ ]
Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))
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[ ]
Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))
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Exhibit No.
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Description
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99.1
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Press
Release dated April 28, 2009
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NATIONAL
INSTRUMENTS CORPORATION
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By:
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/s/
DAVID G. HUGLEY
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David G.
Hugley
Vice
President & General Counsel;
Secretary
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