X0609 4 2026-09-17 0000797721 VIASAT INC VSAT 0001684559 Blair Robert James false 6155 EL CAMINO REAL CARLSBAD CA 92009 false true false false SVP, General Counsel false $.0001 par value common stock 2026-09-17 4 M false 15620 0 A 38000 D $.0001 par value common stock 2026-09-17 4 F false 8427 73.020 D 29573 D $.0001 par value common stock 241 I By 401(k) restricted stock unit 0 2026-09-17 4 M false 15620 0 D common stock 15620 30320 D 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. The original restricted stock unit grant was for 45,940 restricted stock units on 08/17/2025. The units vest and convert into shares of common stock (on a 1-for-1 basis) at the rate of 34% on September 17, 2026; 33% on June 7, 2027; and 33% on June 7, 2028. Until vested, the restricted stock unit shall be subject to forfeiture in the event of termination of employment or service with the Issuer. /s/ Stacy Nguyen, Attorney-in-Fact 2026-09-21