144 0001548472 XXXXXXXX LIVE 0000797721 VIASAT, INC. 000-21767 6155 El Camino Real Carlsbad CA 92009 760-476-2200 SHAWN DUFFY Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

51480 1873022.58 135263968 12/12/2025 NASDAQ Common 11/19/2022 Restricted stock vesting under a registered plan Issuer N 1479 11/19/2022 Services Rendered Common 11/17/2025 Restricted stock vesting under a registered plan Issuer N 2042 11/17/2025 Services Rendered Common 07/31/2023 Restricted stock vesting under a registered plan Issuer N 247 07/31/2023 Services Rendered Common 07/07/2025 Restricted stock vesting under a registered plan Issuer N 4524 07/07/2025 Services Rendered Common 01/31/2024 Restricted stock vesting under a registered plan Issuer N 349 01/31/2024 Services Rendered Common 07/07/2024 Restricted stock vesting under a registered plan Issuer N 2383 07/07/2024 Services Rendered Common 07/31/2024 Restricted stock vesting under a registered plan Issuer N 389 07/31/2024 Services Rendered Common 12/17/2022 Restricted stock vesting under a registered plan Issuer N 2558 12/17/2022 Services Rendered Common 12/09/2025 Exercise of options under a registered plan Issuer N 20695 12/09/2025 Services Rendered Common 11/17/2023 Restricted stock vesting under a registered plan Issuer N 7055 11/17/2023 Services Rendered Common 07/31/2025 Restricted stock vesting under a registered plan Issuer N 825 07/31/2025 Services Rendered Common 11/17/2022 Restricted stock vesting under a registered plan Issuer N 2901 11/17/2022 Services Rendered Common 11/17/2024 Restricted stock vesting under a registered plan Issuer N 2833 11/17/2024 Services Rendered Common 01/31/2025 Restricted stock vesting under a registered plan Issuer N 825 01/31/2025 Services Rendered Common 11/17/2024 Restricted stock vesting under a registered plan Issuer N 2046 11/17/2024 Services Rendered Common 01/31/2023 Restricted stock vesting under a registered plan Issuer N 329 01/31/2023 Services Rendered N SHAWN DUFFY

6155 El Camino Real Carlsbad CA 92009

Common 09/15/2025 50000 1643950.03 12/12/2025 /s/ Shawn Lynn Duffy