X0609 4 2026-09-17 0000797721 VIASAT INC VSAT 0001033482 DANKBERG MARK D false 6155 EL CAMINO REAL CARLSBAD CA 92009 true true false false Chairman and CEO false $.0001 par value common stock 2026-09-17 4 M false 80325 0 A 80325 D $.0001 par value common stock 2026-09-17 4 F false 43336 73.020 D 36989 D $.0001 par value common stock 2026-09-17 4 G false 36989 0 D 0 D $.0001 par value common stock 2026-09-17 4 G false 36989 0 A 1119165 I By Trust $.0001 par value common stock 6130 I By 401(k) restricted stock unit 0 2026-09-17 4 M false 80325 0 D common stock 80325 155925 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 restricted stock unit was granted to Mark Dankberg, an officer of Viasat, Inc. Upon vesting the shares were contributed to The Dankberg Family Trust. The total reported here has been adjusted by -20 shares to correct an error in a previously filed Form 4. The original restricted stock unit grant was for 236,250 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