UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 8, 2018

GOGO INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code:

312-517-5000

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

On August 8, 2018, Gogo Inc. (the “Company”) issued a press release announcing its results of operations for the second quarter ended June 30, 2018. A copy of the press release is attached hereto as Exhibit 99.1.

Item 9.01 FINANCIAL STATEMENTS AND EXHIBITS.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 8, 2018

Exhibit 99.1

Gogo Announces Second Quarter 2018 Financial Results

Chicago, Ill., August 8, 2018 – Gogo (NASDAQ: GOGO), the leading global provider of broadband connectivity products and services for aviation, today announced its financial results for the quarter ended June 30, 2018.

Second Quarter 2018 Consolidated Financial Results

“Our BA segment achieved its highest ever quarterly revenue and EBITDA and we believe this segment is well positioned for continued growth,” said Oakleigh Thorne, Gogo’s President and CEO. “Our CA-NA segment showed solid service revenue growth over Q2 2017, excluding American Airlines. Our 2Ku operating metrics continue to improve and are helping to drive increased customer satisfaction.”

“Our second quarter results were elevated by the strong BA performance, a reduction and the timing of operating costs, and higher CA Net Service Revenue, among other items, and we maintain our 2018 Adjusted EBITDA guidance range of $35-$45 million,” said Barry Rowan, Gogo’s Executive Vice President and CFO. “We are beginning to realize the benefits of our “Gogo 2020” plan and we believe these operational improvements will drive strong EBITDA growth going forward.”

Second Quarter 2018 Business Segment Financial Results

Business Aviation (BA)

Commercial Aviation—North America (CA-NA)

Commercial Aviation—Rest of World (CA-ROW)

Recent Developments

Business Outlook

The Company reaffirms the following 2018 financial guidance:

Conference Call

The Company will host its second quarter conference call on August 8, 2018 at 8:30 a.m. ET. A live webcast of the conference call, as well as a replay, will be available online on the Investor Relations section of the company’s website at http://ir.gogoair.com. Participants can access the call by dialing (844) 464-3940 (within the United States and Canada) or (765) 507-2646 (international dialers) and entering conference ID number 5286077.

Non-GAAP Financial Measures

We report certain non-GAAP financial measurements, including Adjusted EBITDA and Cash CAPEX, in the supplemental tables below. Management uses Adjusted EBITDA and Cash CAPEX for business planning purposes, including managing our business against internally projected results of operations and measuring our performance and liquidity. These supplemental performance measures also provide another basis for comparing period to period results by excluding potential differences caused by non-operational and unusual or non-recurring items. These supplemental performance measurements may vary from and may not be comparable to similarly titled measures by other companies. Adjusted EBITDA and Cash CAPEX are not recognized measurements under accounting principles generally accepted in the United States, or GAAP, and when analyzing our performance with Adjusted EBITDA or liquidity with Cash CAPEX, as applicable, investors should (i) evaluate each adjustment in our reconciliation to net loss attributable to common stock, and the explanatory footnotes regarding those adjustments, (ii) use Adjusted EBITDA in addition to, and not as an alternative to, net loss attributable to common stock as a measure of operating results, and (iii) use Cash CAPEX in addition to, and not as an alternative to, consolidated capital expenditures when evaluating our liquidity. No reconciliation of the forecasted range for Adjusted EBITDA for fiscal 2018 is included in this release because we are unable to quantify certain amounts that would be required to be included in the corresponding GAAP measure without unreasonable efforts and we believe such reconciliation would imply a degree of precision that would be confusing or misleading to investors. In particular, we are not able to provide a reconciliation for the forecasted range of Adjusted EBITDA due to variability in the timing of aircraft installations and deinstallations impacting depreciation expense and amortization of deferred airborne leasing proceeds.

Cautionary Note Regarding Forward-Looking Statements

Certain disclosures in this press release and related comments by our management include forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements regarding our business outlook, industry, business strategy, plans, goals and expectations concerning our market position, international expansion, future technologies, future operations, margins, profitability, future efficiencies, capital expenditures, liquidity and capital resources and other financial and operating information. When used in this discussion, the words “anticipate,” “assume,” “believe,” “budget,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “future” and the negative of these or similar terms and phrases are intended to identify forward-looking statements in this press release.

Forward-looking statements reflect our current expectations regarding future events, results or outcomes. These expectations may or may not be realized. Although we believe the expectations reflected in the forward-looking statements are reasonable, we can give you no assurance these expectations will prove to have been correct. Some of these expectations may be based upon assumptions, data or judgments that prove to be incorrect. Actual events, results and outcomes may differ materially from our expectations due to a variety of known and unknown risks, uncertainties and other factors. Although it is not possible to

identify all of these risks and factors, they include, among others, the following: the loss of, or failure to realize benefits from, agreements with our airline partners or any failure to renew any existing agreements upon expiration or termination; the failure to maintain airline and passenger satisfaction with our equipment or our service; any inability to timely and efficiently deploy our 2Ku service or develop and deploy the technology to which our ATG network evolves or other components of our technology roadmap for any reason, including technological issues and related remediation efforts, changes in regulations or regulatory delays or failures affecting us, our suppliers, some of whom are single source, or the failure by our airline partners or customers to roll out equipment upgrades or new services or adopt new technologies in order to support increased network capacity demands; the timing of deinstallation of our equipment from aircraft, including deinstallations resulting from aircraft retirements and other deinstallations permitted by certain airline contract provisions; the loss of relationships with original equipment manufacturers or dealers; our ability to make our equipment factory linefit available on a timely basis; our ability to develop or purchase ATG and satellite network capacity sufficient to accommodate current and expected growth in passenger demand in North America and internationally as we expand; our reliance on third-party suppliers, some of whom are single source, for satellite capacity and other services and the equipment we use to provide services to commercial airlines and their passengers and business aviation customers; unfavorable economic conditions in the airline industry and/or the economy as a whole; our ability to expand our international or domestic operations, including our ability to grow our business with current and potential future airline partners and customers and the effect of shifts in business models; an inability to compete effectively with other current or future providers of in-flight connectivity services and other products and services that we offer, including on the basis of price, service performance and line-fit availability; our ability to successfully develop and monetize new products and services such as Gogo Vision and Gogo TV, including those that were recently released, are currently being offered on a limited or trial basis, or are in various stages of development; our ability to certify and install our equipment and deliver our products and services, including newly developed products and services, on schedules consistent with our contractual commitments to customers; the failure of our equipment or material defects or errors in our software resulting in recalls or substantial warranty claims; a revocation of, or reduction in, our right to use licensed spectrum, the availability of other air-to-ground spectrum to a competitor or the repurposing by a competitor of other spectrum for air-to-ground use; our use of open source software and licenses; the effects of service interruptions or delays, technology failures and equipment failures or malfunctions arising from defects or errors in our software or defects in or damage to our equipment; the limited operating history of our CA-ROW segment; contract changes and implementation issues resulting from decisions by airlines to transition from the turnkey model to the airline-directed model; increases in our projected capital expenditures due to, among other things, unexpected costs incurred in connection with the roll-out of our technology roadmap or our international expansion; compliance with U.S. and foreign government regulations and standards, including those related to regulation of the Internet, including e-commerce or online video distribution changes, and the installation and operation of satellite equipment and our ability to obtain and maintain all necessary regulatory approvals to install and operate our equipment in the United States and foreign jurisdictions; our, or our technology suppliers’, inability to effectively innovate; changes as a result of U.S. federal tax reform; costs associated with defending pending or future intellectual property infringement and other litigation or claims and any negative outcome or effect of pending or future litigation; our ability to protect our intellectual property; breaches of the security of our information technology network, resulting in unauthorized access to our customers’ credit card information or other personal information; our substantial indebtedness; limitations and restrictions in the agreements governing our indebtedness and our ability to service our indebtedness; our ability to obtain additional financing or financing intended to refinance our existing indebtedness on acceptable terms or at all; fluctuations in our operating results; our ability to attract and retain customers and to capitalize on revenue from our platform; the demand for and market acceptance of our products and services; changes or developments in the regulations that apply to us, our business and our industry, including changes or developments affecting the ability of passengers or airlines to use our in-flight connectivity services, including the recent U.S. and U.K. bans on the use of certain personal devices such as laptops and tablets on certain aircraft flying certain routes; a future act or threat of terrorism, cybersecurity attack or other events that could result in adverse regulatory changes or developments as referenced above, or otherwise adversely affect our business and industry; our ability to attract and retain qualified employees, including key personnel; the effectiveness of our marketing and advertising and our ability to maintain and enhance our brands; our ability to manage our growth in a cost-effective manner and integrate and manage acquisitions; compliance with anti-corruption laws and regulations in the jurisdictions in which we operate, including the Foreign Corrupt Practices Act and the (U.K.) Bribery Act 2010; restrictions on the ability of U.S. companies to do business in foreign countries, including, among others, restrictions imposed by the U.S. Office of Foreign Assets Control; difficulties in collecting accounts receivable; our ability to successfully implement our new enterprise resource planning system, our new Integrated Business Plan and other improvements to systems, operations, strategy and procedures needed to support our growth; and other events beyond our control that may result in unexpected adverse operating results.

Additional information concerning these and other factors can be found under the caption “Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2017 as filed with the Securities and Exchange Commission (“SEC”) on February 22, 2018, in Item 1A of our quarterly report on Form 10-Q for the quarter ended March 31, 2018 as filed with the SEC on May 4, 2018, and in Item 1A of our quarterly report on Form 10-Q for the quarter ended June 30, 2018 as filed with the SEC on August 8, 2018.

Any one of these factors or a combination of these factors could materially affect our financial condition or future results of operations and could influence whether any forward-looking statements contained in this report ultimately prove to be accurate. Our forward-looking statements are not guarantees of future performance, and you should not place undue reliance on them. All forward-looking statements speak only as of the date made and we undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

About Gogo

Gogo is the inflight internet company. We are the leading global provider of broadband connectivity products and services for aviation. We design and source innovative network solutions that connect aircraft to the Internet, and develop software and platforms that enable customizable solutions for and by our aviation partners. Once connected, we provide industry leading reliability around the world. Our mission is to help aviation go farther by making planes fly smarter, so our aviation partners perform better and their passengers travel happier.

Gogo’s products and services are installed on thousands of aircraft operated by the leading global commercial airlines and thousands of private aircraft, including those of the largest fractional ownership operators. Gogo is headquartered in Chicago, IL with additional facilities in Broomfield, CO and locations across the globe. Connect with us at gogoair.com.

Gogo Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Operations

(in thousands, except per share amounts)

Gogo Inc. and Subsidiaries

Unaudited Condensed Consolidated Balance Sheets

(in thousands, except share and per share data)

See the Notes to Unaudited Condensed Consolidated Financial Statements

Gogo Inc. and Subsidiaries

Unaudited Condensed Consolidated Statements of Cash Flows

(in thousands)

See the Notes to Unaudited Condensed Consolidated Financial Statements

Gogo Inc. and Subsidiaries

Supplemental Information – Key Operating Metrics

Commercial Aviation North America

Commercial Aviation Rest of World

Gogo Inc. and Subsidiaries

Supplemental Information – Segment Revenue and Segment Profit (Loss)⁽¹⁾

(in thousands, Unaudited)

Gogo Inc. and Subsidiaries

Supplemental Information – Segment Cost of Service Revenue⁽¹⁾

(in thousands, Unaudited)

Gogo Inc. and Subsidiaries

Supplemental Information – Segment Cost of Equipment Revenue⁽¹⁾

(in thousands, Unaudited)

Gogo Inc. and Subsidiaries

Reconciliation of GAAP to Non-GAAP Measures

(in thousands, except per share amounts)

(unaudited)

Definition of Non-GAAP Measures

EBITDA represents net income (loss) attributable to common stock before income taxes, interest income, interest expense, depreciation expense and amortization of other intangible assets.

Adjusted EBITDA represents EBITDA adjusted for (i) stock-based compensation expense, (ii) amortization of deferred airborne lease incentives, (iii) amortization of STC costs and (iv) the accounting impact of the transition to the airline-directed model. Our management believes that the use of Adjusted EBITDA eliminates items that, management believes, have less bearing on our operating performance, thereby highlighting trends in our core business which may not otherwise be apparent. It also provides an assessment of controllable expenses, which are indicators management uses to determine whether current spending decisions need to be adjusted in order to meet financial goals and achieve optimal financial performance.

We believe the exclusion of stock-based compensation expense from Adjusted EBITDA is appropriate given the significant variation in expense that can result from using the Black-Scholes model to determine the fair value of such compensation. The fair value of our stock options is determined using the Black-Scholes model and varies based on fluctuations in the assumptions used in this model, including inputs that are not necessarily directly related to the performance of our business, such as the expected volatility, the risk-free interest rate and the expected life of the options. Therefore, we believe the exclusion of this cost provides a clearer view of the operating performance of our business. Further, stock option grants made at a certain price and point in time do not necessarily reflect how our business is performing at any particular time. While we believe that investors should have information about any dilutive effect of outstanding options and the cost of that compensation, we also believe that stockholders should have the ability to consider our performance using a non-GAAP financial measure that excludes these costs and that management uses to evaluate our business.

We believe the exclusion of the amortization of deferred airborne lease incentives and amortization of STC costs from Adjusted EBITDA is useful as it allows an investor to view operating performance across time periods in a manner consistent with how management measures segment profit and loss. Management evaluates segment profit and loss in this manner, excluding the amortization of deferred airborne lease incentives and amortization of STC costs, because such presentation reflects operating decisions and activities from the current period, without regard to the prior period decision or the form of connectivity agreements.

We believe it is useful for an understanding of our operating performance to exclude the accounting impact of the transition by one of our airline partners to the airline-directed model from Adjusted EBITDA because of the non-recurring nature of this activity.

We also present Adjusted EBITDA as a supplemental performance measure because we believe that this measure provides investors, securities analysts and other users of our financial statements with important supplemental information with which to evaluate our performance and to enable them to assess our performance on the same basis as management.

Cash CAPEX represents capital expenditures net of airborne equipment proceeds received from the airlines. We believe Cash CAPEX provides a more representative indication of our liquidity requirements with respect to capital expenditures, as under certain agreements with our airline partners we are reimbursed for all or a substantial portion of the cost of our airborne equipment, thereby reducing our cash capital requirements.