144 0001684559 XXXXXXXX LIVE 0000797721 VIASAT, INC. 000-21767 6155 EL CAMINO REAL CARLSBAD CA 92009 760-476-2200 ROBERT BLAIR Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

27064 2158673.36 137755810 08/07/2026 NASDAQ Common 06/30/2015 Restricted Stock Vesting Under a Registered Plan Issuer N 139 06/30/2015 Services Rendered Common 11/17/2015 Restricted Stock Vesting Under a Registered Plan Issuer N 546 11/17/2015 Services Rendered Common 12/31/2015 Restricted Stock Vesting Under a Registered Plan Issuer N 134 12/31/2015 Services Rendered Common 06/30/2016 Restricted Stock Vesting Under a Registered Plan Issuer N 149 06/30/2016 Services Rendered Common 12/30/2016 Restricted Stock Vesting Under a Registered Plan Issuer N 156 12/30/2016 Services Rendered Common 06/30/2017 Restricted Stock Vesting Under a Registered Plan Issuer N 160 06/30/2017 Services Rendered Common 11/17/2017 Restricted Stock Vesting Under a Registered Plan Issuer N 546 11/17/2017 Services Rendered Common 12/17/2017 Restricted Stock Vesting Under a Registered Plan Issuer N 910 12/17/2017 Services Rendered Common 12/29/2017 Restricted Stock Vesting Under a Registered Plan Issuer N 167 12/29/2017 Services Rendered Common 06/29/2018 Restricted Stock Vesting Under a Registered Plan Issuer N 167 06/29/2018 Services Rendered Common 11/17/2018 Restricted Stock Vesting Under a Registered Plan Issuer N 572 11/17/2018 Services Rendered Common 11/17/2018 Restricted Stock Vesting Under a Registered Plan Issuer N 953 11/17/2018 Services Rendered Common 12/31/2018 Restricted Stock Vesting Under a Registered Plan Issuer N 190 12/31/2018 Services Rendered Common 06/28/2019 Restricted Stock Vesting Under a Registered Plan Issuer N 199 06/28/2019 Services Rendered Common 11/17/2019 Restricted Stock Vesting Under a Registered Plan Issuer N 953 11/17/2019 Services Rendered Common 12/31/2019 Restricted Stock Vesting Under a Registered Plan Issuer N 162 12/31/2019 Services Rendered Common 06/30/2020 Restricted Stock Vesting Under a Registered Plan Issuer N 325 06/30/2020 Services Rendered Common 12/17/2020 Restricted Stock Vesting Under a Registered Plan Issuer N 1708 12/17/2020 Services Rendered Common 12/31/2020 Restricted Stock Vesting Under a Registered Plan Issuer N 32 12/31/2020 Services Rendered Common 06/30/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 332 06/30/2021 Services Rendered Common 11/17/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 1708 11/17/2021 Services Rendered Common 12/17/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 2551 12/17/2021 Services Rendered Common 12/31/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 283 12/31/2021 Services Rendered Common 06/30/2022 Restricted Stock Vesting Under a Registered Plan Issuer N 416 06/30/2022 Services Rendered Common 11/17/2022 Restricted Stock Vesting Under a Registered Plan Issuer N 2550 11/17/2022 Services Rendered Common 11/17/2022 Restricted Stock Vesting Under a Registered Plan Issuer N 1707 11/17/2022 Services Rendered Common 12/17/2022 Restricted Stock Vesting Under a Registered Plan Issuer N 2520 12/17/2022 Services Rendered Common 01/31/2023 Restricted Stock Vesting Under a Registered Plan Issuer N 595 01/31/2023 Services Rendered Common 07/31/2023 Restricted Stock Vesting Under a Registered Plan Issuer N 419 07/31/2023 Services Rendered Common 11/17/2023 Restricted Stock Vesting Under a Registered Plan Issuer N 2171 11/17/2023 Services Rendered Common 11/17/2023 Restricted Stock Vesting Under a Registered Plan Issuer N 1707 11/17/2023 Services Rendered Common 01/31/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 740 01/31/2024 Services Rendered Common 07/31/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 125 07/31/2024 Services Rendered Common 11/09/2010 Restricted Stock Vesting Under a Registered Plan Issuer N 83 11/09/2010 Services Rendered Common 06/29/2011 Restricted Stock Vesting Under a Registered Plan Issuer N 42 06/29/2011 Services Rendered Common 06/29/2011 Restricted Stock Vesting Under a Registered Plan Issuer N 83 06/29/2011 Services Rendered Common 12/29/2011 Restricted Stock Vesting Under a Registered Plan Issuer N 42 12/29/2011 Services Rendered Common 12/29/2011 Restricted Stock Vesting Under a Registered Plan Issuer N 107 12/29/2011 Services Rendered Common 11/09/2012 Restricted Stock Vesting Under a Registered Plan Issuer N 632 11/09/2012 Services Rendered Common 11/09/2012 Restricted Stock Vesting Under a Registered Plan Issuer N 83 11/09/2012 Services Rendered Y 08/07/2026 /s/ Robert James Blair