X0508 4 2023-11-10 0 0000797721 VIASAT INC VSAT 0001388392 Harkenrider Kevin J 6155 EL CAMINO REAL CARLSBAD CA 92009 0 1 0 0 Chief Corporate Officer 0 $.0001 par value common stock 2023-11-10 4 M 0 9959 0.00 A 10298 D $.0001 par value common stock 2023-11-10 4 F 0 5245 18.93 D 5053 D $.0001 par value common stock 2023-11-13 4 G 0 339 0.00 D 4714 D $.0001 par value common stock 2023-11-13 4 G 0 339 0.00 A 25195 I By Trust $.0001 par value common stock 3733 I By 401(k) restricted stock unit 0.00 2023-11-10 4 M 0 3500 0.00 D common stock 3500 0 D restricted stock unit 0.00 2023-11-10 4 M 0 3125 0.00 D common stock 3125 3125 D restricted stock unit 0.00 2023-11-10 4 M 0 1667 0.00 D common stock 1667 3333 D restricted stock unit 0.00 2023-11-10 4 M 0 1667 0.00 D common stock 1667 5000 D Includes 197 shares purchased on 01/31/2023 and 142 shares purchased on 07/31/2023 under the Viasat Employee Stock Purchase Plan. This entry represents the number of shares of ViaSat, Inc. common stock withheld by the Issuer to satisfy the tax withholding obligation of the Reporting Person. These shares were not sold by the Reporting Person but were instead offset from the total number of vested shares received by the Reporting Person from the Issuer. These shares were transferred into the Kevin and Andrea Harkenrider Trust dated November 11, 2008. Includes 307 shares of common stock the reporting person acquired under the ViaSat 401(k)Plan, since the date of the reporting person's last ownership report. The original deferred restricted stock unit grant was for 14,000 restricted stock units on November 10, 2009. The units vested and converted into shares of common stock (on a 1-for-1 basis) at a rate of 1/4 on 12/10/2010; 1/4 on 11/10/2011; 1/4 on 11/10/2012 and 1/4 on 11/10/2013. The Reporting Person elected to defer receipt of the common stock for 10 years after each tranche vesting. Until vested, the restricted stock unit shall be subject to forfeiture in the event of termination of employment or service with the Issuer. The original deferred restricted stock unit grant was for 12,500 restricted stock units on November 10, 2010. The units vested and converted into shares of common stock (on a 1-for-1 basis) at a rate of 1/4 on 12/10/2011; 1/4 on 11/10/2012; 1/4 on 11/10/2013 and 1/4 on 11/10/2014. The Reporting Person elected to defer receipt of the common stock for 10 years after each tranche vesting. The original deferred restricted stock unit grant was for 6,667 restricted stock units on November 10, 2011. The units vested and converted into shares of common stock (on a 1-for-1 basis) at a rate of 1/4 on 12/10/2012; 1/4 on 11/10/2013; 1/4 on 11/10/2014 and 1/4 on 11/10/2015. The Reporting Person elected to defer receipt of the common stock for 10 years after each tranche vesting. The original deferred restricted stock unit grant was for 6,667 restricted stock units on November 12, 2012. The units vested and converted into shares of common stock (on a 1-for-1 basis) at a rate of 1/4 on 12/10/2013; 1/4 on 11/10/2014; 1/4 on 11/10/2015 and 1/4 on 11/10/2016. The Reporting Person elected to defer receipt of the common stock for 10 years after each tranche vesting. Stacy Nguyen, Attorney-in-Fact 2023-11-14