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): January 21, 2004 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 January 21, 2004. Item 12. Results of Operation and Financial Condition. The information in this Form 8-K is furnished under Item 12 - Results of Operations and Financial Condition - as provided in SEC Release No. 34-47226. On January 21, 2004, National Instruments Corporation announced the results of operations for the quarter and year ended December 31, 2003. The complete press release is attached to this report as Exhibit 99.1. 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: January 21, 2004 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 January 21, 2004.