X0306 4 2022-01-18 0000935494 NATIONAL INSTRUMENTS CORP NATI 0001561678 Favre Ritu C/O NATIONAL INSTRUMENTS CORPORATION 11500 NORTH MOPAC AUSTIN TX 78759 0 1 0 0 Executive Vice President Common Stock 2022-01-18 4 A 0 13151 0 A 47060 D Common Stock 4960 I By Rita Favre Survivor's Trust Performance-Based Restricted Stock Units 2022-01-18 4 A 0 19727 0 A 2037-05-01 Common Stock 19727 19727 D Represents restricted stock units granted on January 18, 2022 which will vest in three equal installments on the anniversary of the grant date. The number of PRSUs reported in Table II represents the target number of PRSUs that were granted to the reporting person pursuant to the Issuer's 2020 Equity Incentive Plan. Per the terms of the award agreement governing the PRSUs, the number of underlying shares of the Issuer's common stock that the reporting person is ultimately entitled to receive at the time of vesting ranges from 0% to 200% of the target number of PRSUs granted, subject to how the Issuer's total shareholder return ranks in comparison to companies that comprise the Russell 2000 Index over a performance period consisting of the three years ended December 31, 2024. /s/ R. Eddie Dixon, Jr. as attorney-in-fact for Ritu Favre 2022-01-20