On January 29, 2020, the Board of Directors of National Instruments Corporation appointed Eric H. Starkloff to serve as a Class I director, effective February 1, 2020, with a term expiring at NI's 2022 annual meeting of stockholders pursuant to the terms of the Executive Employment Agreement between NI and Mr. Starkloff dated October 28, 2019. The Board does not presently intend to appoint Mr. Starkloff to serve on any committees of the Board. Mr. Starkloff has no family relationship with any of NI's directors or executive officers, and he has no direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K. As an employee of NI, Mr. Starkloff will not receive any additional compensation or equity awards in connection with his service on the Board. Mr. Starkloff, age 45, joined NI inJuly 1997 and, pursuant to his employment agreement referred to above, Mr. Starkloff will become President and Chief Executive Officer of NI effective February 1, 2020. Mr. Starkloff has served as President and Chief Operating Officer since October 2018.On January 29, 2020, the Board approved an increase in the authorized number of members of the Board by one director, from nine to ten directors. Due to Mr. Starkloff's appointment to the existing Class I vacancy, this resulted in a Class III vacancy on the Board. On January 29, 2020 the Board appointed Gayla J. Delly as a director effective March 1, 2020. Ms.Delly served as Chief Executive Officer of Benchmark Electronics Inc. ("Benchmark"), a company that provides contract manufacturing, design, engineering, test and distribution services to manufacturers of computers, medical devices, telecommunications equipment and industrial control and test instruments from January 2012 to September 2016 and served on the board of directors of Benchmark from 2011 to September 2016. At Benchmark, she previously served as President from 2006 to December 2011, Executive Vice President and Chief Financial Officer from 2001 to 2006, and as Corporate Controller and Treasurer from 1995 to 2001. Ms. Delly will serve as a Class III director, with a term expiring at NI's 2021 annual meeting of stockholders. The Board has not appointed Ms. Delly to serve on any committees of the Board at this time. In addition, on January 29, 2020, Jeffrey L. Kodosky, who currently serves as a Class II director, informed the Board that he would not stand for re-election upon the expiration of his current term at NI's 2020 annual meeting of stockholders.