Exhibit 99.1

バイアサット、2024年度第1四半期決算を発表

カリフォルニア州カールズバード、2023年8月9日 - 衛星通信の世界的リーダーであるViasat, Inc. (NASDAQ: VSAT)は本日、株主宛書簡にて2024年度第1四半期決算を発表した。

すでにお知らせしたとおり、本日8月9日（水）午後2時30分（太平洋時間）／午後5時30分（東部時間）より、ヴィアサットはカンファレンス・コールを開催いたします。電話会議のダイヤルイン番号は米国（800）715-9871および国際（646）307-1963です。会議IDは2987066です。

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About Viasat

Viasatは、世界中のすべての人、すべてのものがつながることができると信じているグローバル通信企業です。世界24カ国にオフィスを構える当社の使命は、世界中の消費者、企業、政府、軍隊がどのように通信し、接続するかを形作ることです。バイアサットは、地上、空中、海上など、どこにいても人々の生活にプラスの影響を与える、高品質で信頼性が高く、安全で、手頃な価格の高速接続を実現する究極のグローバル通信ネットワークを開発する一方、宇宙における持続可能な未来を築いています。2023年5月30日、バイアサットはインマルサットの買収を完了し、両社のチーム、技術、リソースを統合して新たなグローバル通信パートナーを誕生させました。詳しくは、www.viasat.com、Viasat News Room、またはFacebook、Instagram、LinkedIn、Twitter、YouTubeでフォローしてください。

copyright © 2023 viasat, inc.すべての権利を保有します。viasat、viasatロゴ、viasatシグナルは、viasat, inc.の登録商標です。記載されている他のすべての製品名または会社名は、識別目的のためにのみ使用されており、それぞれの所有者の商標である可能性があります。

Viasat, Inc. Contacts

デブ・グリーン、広報-コーポレート、+1 (678) 395-0122, deb.green@viasat.com

Paul Froelich/Peter Lopez, Investor Relations, +1 (760) 476-2633, IR@viasat.com

Exhibit 99.2

Q1 FY24 SHAREHOLDER LETTER

Fellow Shareholders, During our fiscal first quarter of 2024 (Q1 FY2024), we closed on the acquisition of Inmarsat and reported strong financial results that show the underlying strength of the combined companies. Recently, we experienced an anomaly with ViaSat-3 Americas (ViaSat-3 F1) during deployment of one of its antennas. With the added scale, business diversity, network resources and synergy opportunities that Inmarsat brings, we remain confident in our ability to grow. For Q1 FY2024 we earned revenue of $780 million, a 36% year-over-year (YoY) increase compared to revenue from continuing operations of $575 million in the prior year quarter. Net loss of $77 million for the quarter was driven by higher interest expense, acquired intangible amortization and non-recurring acquisition-related expenses. Adjusted EBITDA in Q1 FY2024 reached $183 million, an increase of 87% compared to Adjusted EBITDA from continuing operations in Q1 FY2023. These results include one month of contribution from Inmarsat during the quarter – including $134 million of revenue and $72 million of Adjusted EBITDA – for the period following the May 30, 2023 closing date. Inmarsat’s stand-alone performance for the full quarter ended June 30, 2023, was strong, with top line revenue growth of 10% YoY to approximately $400 million for the quarter ended June 30, 2023 and estimated Adjusted EBITDA for the quarter of approximately $220 million, an estimated increase of 5% YoY. We also are off to a strong start to the fiscal year on new contract wins, with consolidated awards of $803 million in Q1 FY2024, up 21% YoY from continuing operations, driven by the addition of Inmarsat and awards for information assurance products. Viasat’s consolidated segment level financial results described in this letter include one month of Inmarsat’s financial results, benefiting Satellite Services and Government Systems most notably. Substantially all of Inmarsat’s former aviation, maritime and enterprise business units are included in Satellite Services, while their former government business unit is included in Government Systems. Inmarsat’s revenue mix for the 12-month period ended March 31, 2023, was derived approximately 36% from government, 34% from maritime, 22% from aviation and 8% from enterprise and other. The addition of Inmarsat accelerates our global mobility and government strategy, brings Ka- and L-band coverage and network redundancy and expands our global distribution capabilities. The combination substantially enhances Viasat’s position as a leading technology and services provider across attractive markets, including in-flight connectivity (IFC), government, business aviation and maritime, plus provides incremental asset and revenue scale, business and end market diversity - alongside operating expense, capital expenditure and revenue synergy opportunities. Our synergy target, as described when we first announced the Inmarsat acquisition, was $1.5 billion of operating and capital expenditure synergies on an after-tax net present value basis, which included $80 million of annual run-rate cost synergies, with revenue synergies being an upside to that target, particularly in government and IFC. As of today, we have confidence we can achieve these original synergy targets and are working to exceed them. We are also stronger from a balance sheet perspective compared to the outlook when we announced the Inmarsat acquisition. We anticipated that the combined company would have a pro forma net leverage ratio of approximately 5.0x Adjusted EBITDA as of December 31, 2022. We substantially strengthened our balance sheet via the sale of the Link-16 Tactical Data Links (TDL) business, which closed in Q4 FY2023, and was expected to result in a net leverage ratio improvement of approximately 0.7 turn, to about 4.3x Adjusted EBITDA. As described in the section on Balance Sheet, Cash Flows, and Liquidity below we are now reporting a further improvement in net leverage, to 3.9x estimated combined LTM Adjusted EBITDA as of Q1 FY2024, just after closing of the Inmarsat acquisition. We have also secured substantial additional liquidity from the acquisition and associated financing transactions and are in a strong financial position to continue to grow the business. The ViaSat-3 F1 antenna anomaly creates unanticipated challenges that we are already addressing. The affected antenna was from a commercial product line of a leading space supplier with a decades long track record of successful space deployment. Antennas from that product line are deployed on numerous prior missions, including on several Inmarsat satellites. We understand the risks involved in space systems, and have insurance. Among the benefits of the Inmarsat acquisition is access to an existing, and forthcoming global Ka-band satellite fleet that can be a key factor in enabling sustained growth, while achieving our very high level of global mobility performance for our customers, despite the ViaSat-3 F1 antenna anomaly. In addition, we had also executed bandwidth supply contracts with other Ka-band broadband operators/partners as a precaution in the event of delays or other possible complications with ViaSat-3 F1. We are currently working closely with our antenna supplier to assess the status of the antenna. Our near-term objectives, working with the antenna manufacturer and our satellite supplier, are to perform a root cause analysis and determine corrective actions for the antenna on ViaSat-3 F2. We have also begun analyzing and assessing the performance of ViaSat-3 F1 with the affected antenna. To date, all other activated subsystems, including the innovative space payload technology and ground infrastructure designed and built by Viasat, are performing as expected, or better, in end-to-end measurements. Importantly, the ViaSat-3 F1 anomaly does not impact any of our existing customers or users. Each of the ViaSat-3 satellites is capable of performing in any of the three orbital slots for the covered regions (Americas, EMEA, and Asia Pacific), enabling options in deployment sequence. On a combined basis we have 13 Ka-band satellites in space with another eight under construction (including ViaSat-3 F2 and F3). Five of those eight are expected to launch by the end of calendar 2025. We also expect to gain additional bandwidth from the existing in-orbit fleet via ground network optimizations. We believe these augmentations will allow us to provide the high-quality experience our mobility customers have come to expect and allow us to support our near- and intermediate-term growth objectives in mobility. Post-Inmarsat acquisition, the U.S. residential business represents approximately 13% of our current revenue. We anticipate that percentage will decline and are factoring that into our overall consolidated growth outlook. Service quality for the remaining 87% of our current revenue is not anticipated to be materially affected by the antenna anomaly. We will describe our current assessment of the FY2024 and preliminary FY2025 business outlooks in the outlook portion of this letter. Importantly, we continue to anticipate growth in revenue and Adjusted EBITDA over these next two fiscal years, driven by substantial backlog and strong recent awards, with additional exciting opportunities ahead. Shareholder Letter | Q1 Fiscal Year 2024 1

Q1 FY2024 Financial Results › Revenue of $780 million in Q1 FY2024 was up 36% compared and information assurance products, and lower R&D to revenue from continuing operations of $575 million in expenditures Q1 FY2023. Inmarsat’s one-month revenue contribution from the acquisition date was approximately $134 million. › Government Systems, had an exceptional quarter with a On a stand-alone basis, Inmarsat’s full quarter revenue, 55% YoY increase in revenue from continuing operations – including the pre-acquisition period, approximated $400 primarily from significant demand for information assurance million, a 10% increase YoY products and the one-month inclusion of Inmarsat › Net loss of $77 million for Q1 FY2024 increased compared › Commercial Networks revenue also grew strongly, up 32% to the net loss from continuing operations of $39 million YoY primarily from increased shipments and installations from the prior year quarter due primarily to higher interest of mobility terminals expense, acquired intangible amortization and non-recurring acquisition-related expenses › Satellite Services revenue increased 28% YoY driven primarily by the one-month contribution from multiple › Adjusted EBITDA for the quarter was $183 million, an increase Inmarsat services. Growth from commercial air IFC services of 87% YoY from Adjusted EBITDA from continuing operations offset fixed broadband subscriber declines as we continue in Q1 FY2023. Q1 FY2024 Adjusted EBITDA included a one- to manage bandwidth needs across our different businesses month contribution from Inmarsat of approximately $72 million. On a stand-alone basis, Inmarsat’s full quarter › Net leverage increased sequentially to approximately 3.9x Adjusted EBITDA is estimated to be approximately $220 combined LTM Adjusted EBITDA, which includes Viasat’s million, reflecting YoY growth of approximately 5%. Viasat’s continuing operations and Inmarsat’s estimated LTM results were driven by the one-month impact of the Inmarsat Adjusted EBITDA and our combined net debt position acquisition, strong demand from commercial air IFC services AWARDS REVENUE OPERATING INCOME (LOSS) $ in millions $ in millions $ in millions Discontinued Ops Discontinued Ops Discontinued Ops Continuing Ops Continuing Ops Continuing Ops $1,115 $27.0 $783 $803 $745 $780 $699 $678 $714 $666 $617 ($17.5) ($27.1) ($41.5) ($72.7) Q1 Q2 Q3 Q4 Q1 Q1 Q2 Q3 Q4 Q1 Q1 Q2 Q3 Q4 Q1 FY23 FY23 FY23 FY23 FY24 FY23 FY23 FY23 FY23 FY24 FY23 FY23 FY23 FY23 FY24 NET INCOME (LOSS) ADJ. EBITDA1 BACKLOG $ in millions $ in millions $ in millions Discont. Ops incl. Gain on TDL Sale Discont. Ops incl. Gain on TDL Sale Discontinued Ops Continuing Ops Continuing Ops $1,786 Continuing Ops $1,196.8 $3,849 $188 $183 $139 $2,370 $2,228 $132 $2,065 $1,659 ($21.6) ($42.2) ($48.2) ($77.0) Q1 Q2 Q3 Q4 Q1 Q1 Q2 Q3 Q4 Q1 Q1 Q2 Q3 Q4 Q1 FY23 FY23 FY23 FY23 FY24 FY23 FY23 FY23 FY23 FY24 FY23 FY23 FY23 FY23 FY24 Shareholder Letter    |    Q1 Fiscal Year 2024 2

Government Systems Segment Highlights › Selected by the Air Force Research Laboratory Space Vehicles Directorate to provide on-orbit space relay connectivity in support of a future space-based demonstration of operational capabilities for the U.S. Department of Defense › Achieved National Security Agency Type-1 certification on our next-generation ground-to-space encryption product, the KG-255XJ End Cryptographic Unit, which is the only cryptographic solution in production with the capability to access every Telemetry, Tracking and Command link on all current orbiting U.S. Department of Defense satellites › Signed a AU$187 million contract with Australia and New Zealand to provide the Southern Positioning Augmentation Network (SouthPAN) satellite service from one of Inmarsat’s three new upcoming I-8 satellites › Received a three and a half year extension on an existing IDIQ contract with a ceiling of $265 million for a full array of services and technology to a major joint component command within the DoD › Received the 2023 James S. Cogswell Outstanding Industrial Security Achievement Award by the Defense Counterintelligence and Security Agency Awards Q1 FY2024 awards from continuing operations were $315 million up 54% YoY, with information assurance products and government satcom system solutions driving the strong order volume in the quarter. Our confidence in near term growth is bolstered by customer demand for Type 1 high-speed cloud/data center information security product. Government Systems ended Q1 FY2024 with backlog of $1.0 billion, an increase of 128% compared to backlog from continuing operations of $445 million in Q1 FY2023. We continue to expand our IDIQ contract portfolio, with Unawarded IDIQ contract value reaching $4.8 billion at the end of Q1 FY2024. Revenue In Q1 FY2024, Government Systems revenue was $233 million, an increase of 55% YoY compared to revenue from continuing operations of $150 million in the prior year quarter. Product revenue from continuing operations increased sharply by 37% YoY primarily from information assurance product deliveries. Service revenues also grew as we scaled our on-the-move governmental platforms alongside the additional revenue benefit from the acquisition of Inmarsat. Adjusted EBITDA Government Systems Q1 FY2024 Adjusted EBITDA from continuing operations was $58 million compared to $24 million in Q1 FY2023. Adjusted EBITDA from continuing operations increased 139% YoY due primarily to the one-month contribution from Inmarsat coupled with strong revenue flow through from information assurance products, as product certification delays impacting the majority of last fiscal year were resolved at the end of FY2023. Shareholder Letter | Q1 Fiscal Year 2024 3

Satellite Services AWARDS, REVENUE AND ADJ. EBITDA1 Segment Highlights $ in millions › Expanded the breadth of mobility and enterprise service businesses with the closing of the Inmarsat acquisition. Inmarsat brings over 38,000 $379 $398 maritime vessels and over 5,000 business aviation aircraft alongside $317 $312 our combined strength of over 3,000 commercial IFC aircraft in service › Enabled complimentary in-flight connectivity with streaming capability $153 for eligible T-Mobile customers on Viasat-equipped domestic American $102 Airlines aircraft › Recognized by the Onboard Hospitality Awards for our OneFi passenger Awards Revenue Adj. EBITDA engagement platform as an innovation that’s ‘One to Watch’ within the aviation industry Q1 FY23 Q1 FY24 › Announced new Fleet Reach coastal LTE service for maritime users designed to augment uninterrupted high-speed broadband connectivity REVENUE MIX for merchant, offshore, energy and fishing customers when sailing near Annual and Quarterly Trends the coast or docked in-port › Subsequent to quarter-end, reached an agreement to appoint the 35% 45% European Satellite Services Provider (ESSP) as a partner for the Iris air 12% 23% 20% traffic modernization program. ESSP is the first pan-European company certified for satellite-based communication service by the European Aviation Safety Agency FY19 FY20 FY21 FY22 FY23 Revenue 43% 47% 50% 65% Q1 FY2024 Satellite Services revenue was $398 million, a 28% increase 42% YoY. Commercial air IFC services experienced strong growth YoY and sequentially, ending the quarter with 3,230 aircraft in service, an increase of 18% YoY compared to the combined commercial aircraft in service Q1 Q2 Q3 Q4 Q1 of Viasat and Inmarsat as of June 30, 2022. Summer travel trends have FY23 FY23 FY23 FY23 FY24 been strong across the industry, with rising passenger counts and flights U.S. Fixed Mobility / International driving higher revenue per plane. Our revenue diversification towards Broadband / Other mobility and other non-U.S. fixed broadband services grew considerably, representing 65% of total Q1 FY2024 revenue (or approximately 75% SERVICE METRICS - KA BAND ONLY assuming a full three months of Inmarsat segment contributions). End End of period vessels and aircraft of period Q1 FY2024 Ka-band service metrics highlight the breadth of global broadband mobility services Inmarsat brings to our portfolio, each 18,960 targeting premium, high-value service offerings with our global solution portfolio. Additionally, we have a broad suite of safety-based solutions and are currently active on over 75,000 aviation and maritime platforms. Adjusted EBITDA In Q1 FY2024, Satellite Services Adjusted EBITDA reached $153 million, a 2,090 51% increase YoY. Adjusted EBITDA growth was driven primarily by the one-month contribution from Inmarsat, the ramp of commercial air IFC Q1 FY23 Q1 FY24 service activations and increased U.S. fixed broadband ARPU, partially Commercial Business Maritime offset by subscriber declines in U.S. and global fixed broadband services Air Aviation and ramped ViaSat-3 network costs. Shareholder Letter | Q1 Fiscal Year 2024 4

Commercial Networks AWARDS, REVENUE AND ADJ. EBITDA1 Segment Highlights $ in millions › Completed ViaSat-3 F2 spacecraft thermal vacuum testing. Reflector corrective action analyses and assessments due to ViaSat-3 F1 reflector anomaly underway › Completed ViaSat-3 F3 initial spacecraft verification testing. Reflector $142 $149 $109 $113 assembly and test progressing. ViaSat-3 F3 uses a different antenna design and a different supplier than ViaSat-3 F1 and is expected to be unaffected by the ViaSat-3 F1 antenna anomaly ($28) ($28) › Completed thermal vacuum testing on the first of the two satellites, carrying the GX10A and B payloads, for the Arctic Satellite Broadband Awards Revenue Adj. EBITDA Mission managed by Space Norway Heosat. The two highly elliptical orbit satellites are expected to extend Global Xpress and deliver Q1 FY23 Q1 FY24 persistent coverage in the northernmost region of Earth Awards In Q1 FY2024, Commercial Networks awards decreased 23% YoY to $109 million. The YoY decrease was driven primarily by significant commercial air IFC terminal order volume in the prior year period. Increased demand for energy products partially offset the YoY air terminal awards decrease. Backlog ended the quarter at $850 million, a 29% increase YoY. Revenue Commercial Networks Q1 FY2024 revenue was $149 million, an increase of 32% YoY. Antenna systems products had another strong quarter contributing to the YoY revenue growth alongside the primary growth catalyst in commercial air product deliveries. We continue to be focused on our on-the-move customers and the unique experiences we can deliver. Our IFC order, delivery and activation trends continue to maintain strong momentum, solidifying our IFC service revenue growth opportunities going forward. Adjusted EBITDA Q1 FY2024 Commercial Networks Adjusted EBITDA was a loss of $28 million, flat YoY. Reduced R&D expenditures offset lower gross margins and higher SG&A expenses in the quarter. Shareholder Letter    |    Q1 Fiscal Year 2024 5

Balance Sheet, Cash Flows and Liquidity OPERATING CASH FLOW Operating Cash Flow $ in millions Viasat generated $104 million in operating cash flow during the quarter, an increase of $64 million YoY and $53 million sequentially. The YoY comparison reflects the one-month contribution from Inmarsat and $188 improvements in working capital, primarily from an increase in other $104 liabilities, partially offset by decreased operating results associated $89 $50 with the divestiture of the Link-16 TDL business in Q4 FY2023. The $40 sequential comparison primarily reflects the one-month contribution from Inmarsat, partially offset by increased working capital alongside Q1 Q2 Q3 Q4 Q1 our normal first quarter settlement of annual liabilities. FY23 FY23 FY23 FY23 FY24 Capital Expenditure Q1 FY2024 capital expenditures were $375 million, an increase of CAPITAL EXPENDITURE 38% YoY. The increase was primarily due to capital expenditures $ in millions by Inmarsat for the one-month period following the closing of the acquisition, higher expenditures on customer premise equipment in anticipation of ViaSat-3 commercial service launch in the Americas, $314 $375 and higher infrastructure spend. $271 $284 $296 Debt and Leverage With the closing of the Link-16 TDL sale in Q4 FY2023 and the additional financing incurred as part of the closing of the Inmarsat acquisition, our liquidity increased significantly to $3.5 billion. This includes Q1 Q2 Q3 Q4 Q1 FY23 FY23 FY23 FY23 FY24 $1.96 billion in cash and cash equivalents, $134 million in short-term investments and $1.36 billion in combined borrowing availability under our two undrawn revolving credit facilities. As of June 30, 2023, net NET DEBT & NET LEVERAGE RATIO2 debt of the combined companies was $5.5 billion and our net leverage $ in billions (except net leverage) ratio was approximately 3.9x combined LTM Adjusted EBITDA. 4.7x 4.2x 4.2x 3.9x 2.0x $5.5 $2.4 $2.6 $2.8 $1.1 Q1 Q2 Q3 Q4 Q1 FY23 FY23 FY23 FY23 FY24 Shareholder Letter | Q1 Fiscal Year 2024 6

FY2024 Outlook We achieved strong financial performance in FY2023 – including record revenue and record awards from continuing operations – despite challenges that included product certification delays, supply chain issues, and ramping ground network costs associated with the ViaSat-3 constellation. Some of these issues were resolved at the end of FY2023 while some have carried over into FY2024. On May 30, 2023, we closed on the acquisition of Inmarsat and the impact of their financial results are included in our outlook prospectively and historically on a combined basis for comparative purposes. › For FY2024 we expect revenue growth in the high single-digit percentages over FY2023 for the combined company (including Inmarsat historical results in FY2023 for comparative purposes). › A simple view of expected FY2024 Adjusted EBITDA can be approximated by adding Viasat’s stand-alone prior expectations of high single-digit to low double-digit growth for full-year FY2024 Adjusted EBITDA from continuing operations (without giving effect to the Inmarsat acquisition) to approximately ten months of Inmarsat contributions (which we expect will grow slightly throughout the fiscal year). › Satellite Services revenue is expected to grow modestly in FY2024, supported by growth in IFC, business aviation and maritime, offset by lower U.S. fixed broadband revenue. Satellite Services margins for the combined company are expected to improve relative to FY2023. › Government Systems revenue is expected to grow strongly in FY2024, with increasing contributions from sales of encryption products and as government service revenue scales. Government Systems revenue visibility for FY2024 is supported by backlog of over $1.0 billion at the end of Q1 FY2024, alongside growing recurring government service revenue contributions from Inmarsat. › Commercial Networks revenue is expected to grow modestly in FY2024 with solid contributions from IFC terminal deliveries and strength in advanced ground antenna systems. › Net leverage is expected to increase modestly by the end of FY2024 as cash balances are partially used to fund capital expenditures. Supporting our outlook is a ViaSat-3 F1 anomaly mitigation strategy that is designed to assure service to key customers, including in high-demand locations. Growth in our fixed broadband business is expected to be delayed compared to what would have been obtained with nominal antenna performance, but given the diversity of our combined business today along with anticipated antenna mitigations, our overall expectations are to continue to grow revenue and Adjusted EBITDA again in FY2025, relative to our expectations for FY2024 (and assuming a full year of contribution from Inmarsat for FY2024). Regarding free cash flow, we are targeting the inflection point to sustained positive to occur in the second half of calendar 2025. We are happy to welcome the Inmarsat family into Viasat and are excited to continue executing on our vision and the many opportunities ahead. Sincerely, Mark Dankberg Guru Gowrappan Shareholder Letter | Q1 Fiscal Year 2024 7

Endnotes 1. A reconciliation of Adjusted EBITDA to net income (loss) attributable to Viasat, Inc. is provided at the end of this letter. For all three segments Adjusted EBITDA includes certain corporate and other indirect costs previously allocated to the discontinued operations that have been reallocated across all three segments for the applicable periods presented except for Q4 FY2023 and Q1 FY2024. 2. Net leverage ratio is defined as principal amount of total debt less cash and cash equivalents and short-term investments divided by LTM Adjusted EBITDA. Combined LTM Adjusted EBITDA is calculated using Viasat’s LTM Adjusted EBITDA from continuing operations and the estimated LTM Adjusted EBITDA of Inmarsat as of June 30, 2023. See “Use of Non-GAAP Financial Information” for additional information. Shareholder Letter    |    Q1 Fiscal Year 2024 8

Forward Looking Statements This shareholder letter contains forward-looking statements regarding future events and our future results that are subject to the safe harbors created under the Securities Act of 1933 and the Securities Exchange Act of 1934. Forward-looking statements include, among others, statements that refer to the expected benefits, synergies, growth opportunities and other financial and operating benefits of the Inmarsat acquisition; the expected performance of the ViaSat-3 F1 satellite, including the extent and impact of the reflector deployment issue on the ViaSat-3 F1 satellite and any potential corrective or mitigating measures that may be undertaken or insurance claims or proceeds that may be made or recoverable in connection therewith; the performance and anticipated benefits of our ViaSat-3, ViaSat-4 and I-6 (hybrid L- and Ka-band) class satellites and any future satellite we may construct or acquire; satellite construction and launch activities generally, including expectations regarding completion, launch, deployment, commencement of commercial service and performance of existing satellites under construction (including our ViaSat-3, ViaSat-4, I-6 and I-8 class satellites) and capacity constraints prior to commencement of commercial service; projections of earnings, revenue, net leverage, free cash flow, capital investments, costs, expected cost savings and synergies, or other financial items, including financial guidance and outlook and expectations for performance and results of operations in FY2024 and beyond; anticipated trends in our business or key markets; the ability to capitalize on awards received and unawarded IDIQ contract vehicles; future economic conditions; the development, demand, customer acceptance and anticipated performance of technologies, products or services; our plans, objectives and strategies for future operations; international growth and expansion opportunities; statements regarding existing and prospective orders from current and new IFC customers; and other characterizations of future events or circumstances, are forward-looking statements. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties and assumptions that are difficult to predict. Factors that could cause actual results to differ materially include: risks that the Inmarsat acquisition disrupts current plans and operations or diverts management’s attention from our business; the effect of the Inmarsat acquisition on our ability to retain and hire key personnel and maintain relationships with our customers, suppliers and others with whom we do business; our ability to successfully integrate the operations, technologies and employees of Inmarsat; the ability to realize anticipated benefits and synergies of the Inmarsat acquisition, including the expectation of enhancements to our products and services, greater revenue or growth opportunities, operating efficiencies and cost savings; the ability to ensure continued performance and market growth of our business following the closing of the Inmarsat acquisition; risks associated with the construction, launch and operation of satellites, including the effect of any anomaly, operational failure or degradation in satellite performance; our ability to realize the anticipated benefits of our ViaSat-3, ViaSat-4 and I-6 class satellites and any future satellite we may construct or acquire; unexpected expenses related to our satellite projects; our ability to successfully implement our business plan for our broadband services on our anticipated timeline or at all; capacity constraints in our business in the lead-up to the launch of commercial services on our ViaSat-3 satellites; our ability to successfully develop, introduce and sell new technologies, products and services; audits by the U.S. Government; changes in the global business environment and economic conditions; delays in approving U.S. Government budgets and cuts in government defense expenditures; our reliance on U.S. Government contracts, and on a small number of contracts which account for a significant percentage of our revenues; reduced demand for products and services as a result of continued constraints on capital spending by customers; changes in relationships with, or the financial condition of, key customers or suppliers; our reliance on a limited number of third parties to manufacture and supply our products; increased competition; introduction of new technologies and other factors affecting the communications and defense industries generally; the effect of adverse regulatory changes (including changes affecting spectrum availability or permitted uses) on our ability to sell or deploy our products and services; changes in the way others use spectrum; our inability to access additional spectrum, use spectrum for additional purposes, and/or operate satellites at additional orbital locations; competing uses of the same spectrum or orbital locations that we utilize or seek to utilize; the effect of recent changes to U.S. tax laws; our level of indebtedness and ability to comply with applicable debt covenants; our involvement in litigation, including intellectual property claims and litigation to protect our proprietary technology; and our dependence on a limited number of key employees. In addition, please refer to the risk factors contained in our SEC filings available at www. sec.gov, including our most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q. Readers are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date on which they are made. We undertake no obligation to revise or update any forward-looking statements for any reason. Shareholder Letter | Q1 Fiscal Year 2024 9

Use of Non-GAAP Financial Information To supplement Viasat’s consolidated financial statements presented in accordance with generally accepted accounting principles (GAAP), Viasat uses non-GAAP net income (loss) attributable to Viasat, Inc. and Adjusted EBITDA, measures Viasat believes are appropriate to enhance an overall understanding of Viasat’s past financial performance and prospects for the future. We believe the non-GAAP results provide useful information to both management and investors by excluding specific expenses that we believe are not indicative of our core operating results. In addition, since we have historically reported non-GAAP results to the investment community, we believe the inclusion of non-GAAP numbers provides consistency in our financial reporting and facilitates comparisons to Viasat’s historical operating results. Further, these non-GAAP results are among the primary indicators that management uses as a basis for evaluating the operating performance of our segments, allocating resources to such segments, planning and forecasting in future periods. The presentation of this additional information is not meant to be considered in isolation or as a substitute for measures of financial performance prepared in accordance with GAAP. A reconciliation of specific adjustments to GAAP results is provided in the tables below. In addition, we have included estimations of Adjusted EBITDA of the Inmarsat business for certain periods to enhance investors’ understanding of the contribution of the newly acquired Inmarsat business to Viasat’s overall financial performance. Inmarsat’s stand-alone results of operations are reported in accordance with International Financial Reporting Standards (IFRS) and not GAAP in accordance with the requirements of Inmarsat’s debt instruments. However, to facilitate comparability with statements regarding Viasat’s overall Adjusted EBITDA, these estimations of Inmarsat’s Adjusted EBITDA have been prepared using the same methodology and adjustments as used in the calculation of Viasat’s overall Adjusted EBITDA. However, as IFRS differs from GAAP in a number of important respects, readers are cautioned not to place undue reliance on these estimations, which have been prepared for illustrative purposes only. In addition, for purposes of calculating our net leverage ratio as of June 30, 2023, we use combined LTM Adjusted EBITDA for the twelve months ended June 30, 2023. Combined LTM Adjusted EBITDA represents Adjusted EBITDA of Viasat and estimated Adjusted EBITDA of Inmarsat (for periods prior to the Inmarsat acquisition) for the twelve months ended June 30, 2023 on a combined basis, as if the Inmarsat acquisition had occurred on July 1, 2022. Such presentation does not conform to GAAP or the Securities and Exchange Commission rules for pro forma presentations; however, we have included these combined results solely for purposes of presenting our net leverage ratio as of June 30, 2023 (which otherwise would not provide a comparable presentation of net leverage). This combined financial information is unaudited and does not include any pro forma adjustments to reflect the Inmarsat acquisition and related transactions. Combined LTM Adjusted EBITDA has been prepared by management for illustrative purposes only in connection with our presentation of net leverage ratio and does not purport to be indicative of what the combined company’s results of operations would have been if the Inmarsat acquisition and related transactions had occurred at the beginning of the period presented. In addition, the combined financial information does not reflect non-recurring charges incurred in connection with the Inmarsat acquisition, nor any cost savings and synergies expected to result from the Inmarsat acquisition (and associated costs to achieve such savings or synergies), nor any costs associated with severance, restructuring or integration activities resulting from the Inmarsat acquisition. Copyright © 2023 Viasat, Inc. All rights reserved. Viasat, the Viasat logo and the Viasat signal are registered trademarks of Viasat, Inc. All other product or company names mentioned are used for identification purposes only and may be trademarks of their respective owners. Shareholder Letter | Q1 Fiscal Year 2024 10

バイアサット2024年度第1四半期決算

Financial Results