SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2003 National Instruments Corporation (Exact name of registrant as specified in its charter) Delaware 0-25426 74-1871327 (State or other (Commission File Number) (IRS Employer jurisdiction of Identification No.) Incorporation) 11500 North MoPac Expressway, Austin, Texas 78759 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (512) 338-9119 (Former name or former address, if changed since last report) Item 7. Financial Statements and Exhibits. (c) Exhibits. 99.1 Press Release dated July 23, 2003. Item 9. Regulation FD Disclosure. The press release filed as an exhibit to this report is being furnished under Item 12 (Furnishing of Earnings Releases) as contemplated by SEC Release Nos. 33-8176 and 33-8216. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Dated: July 23, 2003 NATIONAL INSTRUMENTS CORPORATION /s/ DAVID G. HUGLEY -------------------------------------------- David G. Hugley Vice President & General Counsel Secretary INDEX TO EXHIBITS Exhibit Number Description of Document 99.1 Press Release dated July 23, 2003.