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Investor Presentation August 2026 M mntn
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2 Disclaimer Forward-Looking Statements This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical fact contained in this presentation should be considered forward-looking statements, including, but not limited to, statements regarding: the business strategy, plans and objectives of management for future results of operations and financial position, including our full year 2026 revenue and Adjusted EBITDA outlook; the performance of our products and benefits to customers; our market opportunity and demand; and industry and market trends. Without limiting the foregoing, in some cases, you can identify forward-looking statements by terms such as “aim,” “anticipate,” “believe,” “can,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” or the negative of these terms or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward- looking statements, including, but not limited to: our dependence on the growth and expansion of CTV and performance marketing using CTV, including if the adoption of CTV by customers develops more slowly than we expect, as well as the reduced growth and expansion of our PTV platform; our dependence on a limited number of large customers and our ability to attract new customers, expand existing customer usage of our platform or achieve our customers’ return on ad spend and other specific campaign goals; our dependence on demand for advertising, including factors that affect the level of demand and resulting amount of spend on general and digital advertising, such as economic downturns, geopolitical conflicts, supply chain shortages, interest rate volatility, labor shortages, actual or perceived instability in the banking industry and inflation and any health epidemics or other contagious outbreaks; our results of operations may fluctuate significantly and may not meet our expectations or those of securities analysts and investors; seasonal fluctuations in the demand for digital advertising and our solutions; our short operating history in PTV; inability to manage our growth effectively, and maintain the quality of our platform as we expand; failure of our sales and marketing efforts to yield the results we seek; our product development and innovation may be inefficient or ineffective; our customers' material reduction of the use of our platform; errors, defects, or unintended performance problems with our platform; changes or developments in the laws, regulations and industry requirements related to data privacy, data protection, information security and consumer protection, and failure to comply with such laws, regulations and industry requirements; inability to collect, use, and disclose data, including the use of pixels or other similar technologies; the use of digital advertising is rejected by consumers, through opt-in, opt-out, or ad-blocking technologies or other means that limit the effectiveness of our platform; inability to increase the scale and efficiency of our technology infrastructure to support our growth and transaction volumes; incurrence of cyberattacks or privacy or data breaches resulting in platform outages or disruptions; failure to detect or prevent fraud on our platform, or malware intrusion into the systems or devices of our customers and their audiences; the intensely competitive market that we operate in; inability to maintain our corporate culture as we grow or as we adapt to an entirely remote work environment, including if we fail to attract, retain, and motivate key personnel; inability to identify and integrate future acquisitions and new technologies; our reliance on technological intermediaries to purchase ad inventory on behalf of customers; our use of and development of artificial intelligence technologies; the impact of any health epidemics contagious outbreaks, the ongoing conflicts in Ukraine, the Middle East and tensions between China and Taiwan, and changes in the macroeconomic conditions on global markets, including inflation and interest rate volatility, the advertising industry and our results of operations, and the response by governments and other third parties; unfavorable or otherwise costly outcomes of lawsuits and claims that arise from the extensive laws and regulations to which we are subject; risks related to taxation matters; risks related to the ownership of our Class A common stock; and other important factors discussed in Part II, Item 1A. “Risk Factors” in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, as any such factors may be updated from time to time in our other filings with the SEC, including, without limitation, our Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2026 (the “Quarterly Report”), accessible on the SEC’s website at www.sec.gov and our Investor Relations page on our website at https://ir.mountain.com. Although we believe that our plans, intentions, expectations, strategies and prospects as reflected in or suggested by those forward-looking statements are reasonable, we can give no assurance that the plans, intentions, expectations or strategies will be attained or achieved. The forward- looking statements in this presentation are based on information available to us as of the date hereof, and we disclaim any obligation to update any forward-looking statements, except as required by law. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this presentation. Non-GAAP Financial Measures We present EBITDA, Adjusted EBITDA and Adjusted EBITDA Margin in this presentation which are financial measures that are not recognized under United States generally accepted accounting principles (“GAAP”). See the appendix for a reconciliation of EBITDA, Adjusted EBITDA and Adjusted EBITDA Margin to the most directly comparable GAAP financial measures. Market, Industry and other Data This presentation includes estimates regarding market and industry data. Unless otherwise indicated, information concerning our industry and the markets in which we operate, including our general expectations, market position, market opportunity, and market size, are based on management’s knowledge and experience in the markets in which we operate, together with currently available information obtained from various sources that have not been commissioned by us, including publicly available information, industry reports and other publications, reports from government agencies, surveys, our members and providers, and other contacts in the markets in which we operate. Certain information is based on management estimates, which have been derived from third-party sources, as well as data from our internal research, and is based on certain assumptions that we believe to be reasonable. In presenting this information, we have made certain assumptions that we believe to be reasonable based on such data and other similar sources and on our knowledge of, and our experience to date in, the markets in which we operate. While we believe the market and industry data included in this presentation and upon which the management estimates included herein are in part based are generally reliable, such information is inherently uncertain and imprecise, and you are cautioned not to give undue weight to such data or the management estimates based on such data. Market and industry data are subject to change and may be limited by the availability of raw data, the voluntary nature of the data gathering process and other limitations inherent in any statistical survey of such data. In addition, projections, assumptions, and estimates of the future performance of the markets in which we operate and our future performance are necessarily subject to uncertainty and risk due to a variety of factors, including those described in “Risk Factors,” “Cautionary Note Regarding Forward-Looking Statements,” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Quarterly Report. These and other factors could cause results to differ materially from those expressed in the estimates made by third parties and by us. Accordingly, you are cautioned not to place undue reliance on such market and industry data or any other such estimates. The content of, or accessibility through, the sources and websites identified herein, except to the extent specifically set forth in this presentation, does not constitute a portion of this presentation and is not incorporated herein, and any websites are an inactive textual reference only. In addition, references to third-party publications and research reports herein are not intended to imply, and should not be construed to imply, a relationship with, or endorsement of us by, the third party producing any such publication or report.
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Key Investment Highlights TV Has Highly Attractive Engagement and Scale Dynamics Relative to Search, Social and Mobile PTV Near-Term Market Opportunity Approaching $120B MNTN is Unlocking Performance Budgets Not Available Yet to Other CTV Platforms Deep Customer Roster of Recognizable Consumer Brands Access to Substantially All Networks, Devices and Streaming Platforms Differentiated Financial Profile with Rule of 40+ Economics Experienced and Visionary Founder-Led Management Team First-Mover and Deep Competitive Advantages 1 2 3 4 5 6 7 8
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4 MNTN’s Near-Term Market Opportunity Approaching $120B Note: 1. Figures are rounded. 2. Source: Magna Global, December 202 5. Note: includes digital, outdoor, cinema, print, radio and television. 3. Source: Magna Global, December 202 5. Note: Includes mobile display, mobile video, search and social. 4. Source: eMarketer, September 2025 . Note: Includes Linear TV and Connected TV. 5. MNTN SAM calculated based on estimated number of US firms by firm size 10 -500 employees ( US Census as of April 2025 ) with average annual sales of ~$ 7M (Zippia); assumes marketing budgets at 9% of sales (Gartner); according to management estimates PTV allocation of 5-10%. 1.8M........... Bottoms-Up Market Potential(5)Bottoms-Up Market Potential(5) $411B(1) ‘25-’29 CAGR: 6.8% Total U.S. Advertising (2) $297B(1) ‘25-’29 CAGR: 9.3% U.S. Performance Advertising (3) $84B(1) ‘25-’29 CAGR: 1.1% U.S. TV Advertising (4) U.S. Target Advertisers (Firm Size 10 -500 Employees) $7M............ Avg. Revenue $650K........ Avg. Marketing Budgets (9% of Revenue) $55-110K..... PTV Allocation (5-10% of Marketing Budgets) PTV SAM(5) $60-120B
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5 MNTN Introduced Performance Software to the CTV Channel ~95% of our customers never advertised on TV before Note: 1. For the trailing twelve months ended December 31, 2025, compared to the trailing months ended December 31, 2024. 2. Customers that launched from January 1, 2025, through December 31, 2025 63% Increase in Active PTV Customers(1) Software is Self-Service for All Customers (2)
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6 MNTN’s First Mover & Competitive Advantage Note: 1. Average, 2025 full year. Leading Technology: Brand-Direct, Self-Serve PTV Platform with Advanced AI Next-Gen Targeting: MNTN Matched Superior Attribution: Across 400M+ Devices through 1st Party and 3rd Party Data Strong Creative Tools: QuickFrame and Generative AI Tools Publisher Network: Deep relationships with ~200 publishers Efficient GTM Sales Motion: 11 Day Inbound Sales Cycle(1)
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7 Return on Ad Spend is a Primary Focus of Millions of Performance Advertisers Note: Information on this slide is presented for illustrative purposes only. There can be no assurance that these illustrative results will result or be achieved, and actual results may vary materially from these illustrative results. $25,000 Campaign SPEND VISIT PURCHASE $125,000 Revenue Ad Spend Campaign Revenue 5x ROAS Advertisers will continue to spend against their ROAS target
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8 TV has Greater Engagement and Scale than Search and Social but is Undermonetized(1) Note: 1. Based on MNTN estimates. 2. Google advertising revenue Form 10 -K for the annual period ended December 31, 202 5. 3. Meta advertising revenue Form 10 -K for the annual period ended December 31, 202 5. 4. SimilarWeb, Google.com Engagement Overview (Feb 202 6). Note: 9 minutes calculated assuming 1 0 minutes per visit, ~8 3B visits per month and ~3. 19B unique visitors for latest 3 months . 5. Business of Apps Google Search Statistics as of January 2026. 6. eMarketer, Data Reportal | Note: Sum of time spent on Facebook (31 minutes) and Instagram (32 minutes) platforms per day. 7. eMarketer (May 2025 Forecast) 8. Statista, Number of TV viewers globally from 2017 to 2030 (February 2026). Engagement (per day) TV Users ~9 mins(4) 4.4B(5) ~63 mins(6) 3.9B (MAU)(3) ~150 mins(7) 5.3B (MAU)(8) $295B(2) $196B(3)
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9 MNTN Unlocks Performance Budgets Not Available to Other CTV Platforms Old Agency Driven WorldDirect to Marketer with Full-Stack Automation Campaign Type Customers Attribution Campaign Optimization Targeting Programmatic Bidding (DSP) TV Networks Performance / ROAS Millions of Performance Marketers Automation, Data, Measurement, Self -Serve Platform, MNTN Matched Brand / Reach Limited Brand Marketers Agency Black Box 3rd Party DSPs
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10 Our Proprietary Tech Stack Enables Advertisers to Launch Performance TV Campaigns for the First Time Self-Serve Goal & Budget Planning Match Audiences Next Gen Targeting - Matching Consumers With Brands Creative TV-Quality Commercials in a Fraction of the Time and Budget Measurement & Attribution Transparent Reporting Down to Order ID Automated Optimization Real Time Performance Optimization • Set goals and control budgets • Advanced graphs, keywords and intent-based audiences • QuickFrame AI and QuickFrame Marketplace • Conversion performance and incrementality • Campaign performance attributed to user actions • 3rd party and 1st party data, including CRM data • Automated pricing, placement and pacing
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11 MNTN Matched Connecting Marketers with CTV Audiences Note: 1. Addressable households refers to the estimated number of unique households we have reached by serving a TV ad through Decembe r 2025. ~130M Households(1)Matching Based on Multiple Signals Shopper • Looking at skateboards • Purchased surfboard Events • College Grad • Marriage • Buys a home Interests • Household income • Fan of Skating • Age Categorizing consumers based on signals and propensity to buy Building a predictive model of what a consumer wants to buy next
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12 AI Drives MNTN Matched Which Simplifies Marketer Workflows Note: 1. Graphics presented for illustrative purposes only. 4 Generative AI Based Keywords Categorization(1) 1 Matching with MNTN Matched 2 Matching Budget With High Intent Audiences 3
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13 AI Powered Video and Audio Generation Game-Changer for Setting Up TV Campaigns Note: Graphics presented for illustrative purposes only. 1. Total voices includes voice variations from Eleven Labs (as of February 2026) and Well -said (as of February 2026). Storyboarding is as easy as providing text prompts for both video and voiceover Provides selection of natural AI voices – 235 total voices(1) and 158 unique voices Instantly publish to MNTN CTV, as well as other major digital platforms STORYBOARD EDITOR PUBLISH
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14 Access to Substantially All Networks, Devices, and Platforms Premium Inventory Incremental Budgets Preferential Pricing Strategically Aligned with Networks 200+ TV NETWORKS Local News
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15 Note: 1. Monthly average, 202 5 full year. Marketing Engine Marketing lays the foundation MNTN Has Built the Only Successful Sales Channel for Performance Advertising on TV Brand-Direct Approach MNTN sells to performance marketers Product Focused Sales Sales pitches prospects on platform Trial Performance Marketers have test budgets. MNTN sells trials (1-3 months). No contracts, no commitment Upsell Customers scale budgets based on performance Creative Programs Enable customers to receive TV commercials quickly, reducing friction in launching campaigns Average Inbound Sales Cycle(1) Average Outbound Sales Cycle(1)
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16 Multiple Levers to Drive Future Growth Accelerate New Customer Acquisition Expand Wallet Share Continuous Product Innovation Develop & Promote the MNTN Brand Increase Efficiencies & Operating Leverage Extend Into Adjacencies Accelerate New Customer Acquisition & Expand Wallet Share New Markets
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17 Leading Senior Management Team Mark Douglas Chief Executive Officer Patrick Pohlen Chief Financial Officer Chris Innes Chief Operating Officer Ryan Reynolds Chief Creative Officer Richard Girges Chief Technology Officer George Dewey Chief Brand Officer Marwan Soghaier Chief Product Officer Anna McMurphy Chief People Officer Garland Hill Chief Revenue Officer Peter Blacker Global Head of Premium Content
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18 Key FinancialHighlights Strong Customer and Revenue Growth Consistent revenue growth from the acquisition of new and retention of existing customers Gross Margin Expansion Gross margin expansion through increasing efficiencies Operating Leverage Efficiencies in sales and marketing driving increased profitability Long-Term Focus Investing in opportunities that aim to expand market share and product offerings
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19 We believe we created the SMB advertising market for streaming television $352M(5) Revenue (202 6E) 12.1x Performance TV Revenue Increase (2020 – 2025) $98.5M(1)(5) Adj. EBITDA (2026E ) 4,225 (2) Total Customers 47%(3) “Rule of” (Q2 2026A) $38.9B(4) Client Generated Revenue (2020 – 2025) Note: 1. See Appendix for a reconciliation with the most directly comparable GAAP figure. 2. Based on number of customers who have spent on MNTN platform in LTM 6/30/ 2026. 3. Reflects Revenue Growth adjusted for the divestiture of Maximum Effort + Adjusted EBITDA Margin. See Appendix for a reconciliation of Adjusted EBITDA Margin with the most directly comparable GAAP figure. 4. According to management estimates. 5. Midpoint of Guidance MNTN COMPANY SNAPSHOT
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20 Note: 1. See Appendix for a reconciliation with the most directly comparable GAAP figure. Q2 2026 Highlights $82.5M Total Revenue 80% Gross Margin $59.2M Operating Expenses $21.5M(1) Adj. EBITDA 21% Total Growth (Adjusted) +350 BPs YoY Margin Expansion 21% YoY % Increase ~26% (1) Adj. EBITDA Margin 48% (1) YoY % Increase
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Revenue + Gross Profit 1. The sum of the four quarters does not equal the full year amount due to rounding. (Millions) Revenue Q1 Q2 Q3 Q4 2025 Q1 Q2 MNTN, excluding Maximum Effort $59.1 $68.5 $70.0 $87.1 $284.7 $73.7 $82.5 YoY 46% 34% 31% 36% 36% 25% 21% Maximum Effort $5.4 - - - $5.4 - - YoY 65% n/m n/m n/m nm n/m n/m Total (1) $64.5 $68.5 $70.0 $87.1 $290.1 $73.7 $82.5 YoY 47% 25% 23% 25% 29% 14% 21% (Millions) Gross Profit Q1 Q2 Q3 Q4 2025 Q1 Q2 MNTN, excluding Maximum Effort $42.4 $52.7 $55.2 $71.5 $221.7 $60.0 $66.3 GM% 72% 77% 79% 82% 78% 81% 80% Maximum Effort $2.3 -$0.1 - - $2.2 - - GM% 43% n/m n/m n/m n/m n/m n/m Total (1) $44.7 $52.6 $55.2 $71.5 $223.9 $60.0 $66.3 GM% 69% 77% 79% 82% 77% 81% 80% 2025 2025 2026 2026
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Quarterly Total Revenue (1) US$ in Millions 17% YoY Growth 22 RevenueGrowth– Excluding Maximum Effort(1) 46% 25% 36% 34% 40% 31% 36% 34% 36% 1. Adjusts revenue for periods prior to April, 1 2025 to exclude the revenue contribution of the Maximum Effort business, which was spun off on April, 1 2025 40.5 51.2 53.4 64.2 59.1 68.5 70.0 87.1 73.7 82.5 Q1 Q2 Q3 Q4 2024 2025 2026 34% 21%
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23 Note: 1. See Appendix for a reconciliation with the most directly comparable GAAP figure. Strong Margin Expansion Gross Profit Margin Adjusted EBITDA (1) US$ in Millions Margin(1) - 15% 14% 21% 18% 23% 30% 32%18%22% 26% 0.1 7.6 10.5 20.7 9.4 14.5 16.0 28.1 16.3 21.5 Q1 Q2 Q3 Q4 2024 2025 2026 65.7% 69.6% 71.7% 76.8% 69.3% 76.8% 78.9% 82.1%81.5% 80.3% Q1 Q2 Q3 Q4 2024 2025 2026
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Appendix 24
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25 Q2 2026 GAAP Financial Information
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26 Q2 2026 AdjustedEBITDA Reconciliation
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27 Quarterly Adjusted EBITDA Reconciliation Note: 1. Represents non-cash expenses related to equity-based compensation programs which vary from period to period depending on various factors including timing, number and the valuation of awards. 2. Represents the change in fair value of our embedded derivative liabilities, warrant liabilities, contingent liabilities, and convertible debt. 3. Represents the loss on the extinguishment of the convertible debt that was amended on April 1, 2025, and ultimately settled upon the initial public offering on May 23, 2025. 4. Represents legal costs associated with prior acquisitions, transaction costs, including professional fees. 5. Represents certain legal settlements related to non-recurring legal proceedings recognized during the respective period 6. Represents severance and related costs for a strategic restructuring approved by the Company’s board of directors on April 28, 2026. 7. Net income (loss) margin is defined as net income (loss) divided by revenue. 8. Adjusted EBITDA margin is defined as adjusted EBITDA divided by revenue. EBITDA / Adjusted EBITDA (in 000s) 1Q 2024 2Q 2024 3Q 2024 4Q 2024 1Q 2025 2Q 2025 3Q 2025 4Q 2025 1Q 2026 2Q 2026 Net income (loss) (15,699) (9,274) (3,884) (4,020) (21,111) (26,228) 6,436 34,477 8,762 6,720 Interest (income) expense, net 2,943 1,769 1,085 1,123 1,155 (708) (1,991) (1,941) (1,877) (2,046) Income tax provision 11 122 58 5,595 (4,309) 1,986 1,946 (9,197) 2,855 2,439 Depreciation and amortization expense 1,859 1,916 1,997 2,573 2,144 2,658 2,480 2,588 2,713 3,907 Stock-based compensation expense (1) 7,803 7,828 7,739 7,829 14,060 7,624 5,558 4,452 3,860 8,767 Fair value adjustments (2) 3,126 5,097 3,111 7,240 16,535 2,229 1,138 (2,753) (166) - Loss on debt extinguishment (3) - - - - - 26,436 - - - - Acquisition costs (4) 42 108 153 239 827 514 408 503 184 231 Legal settlement (5) - - 195 119 60 - - - - - Restructuring costs (6) - - - - - - - - - 1,491 Adjusted EBITDA 85 7,566 10,454 20,698 9,361 14,511 15,985 28,129 16,331 21,509 Revenue 43,811 54,821 57,127 69,812 64,512 68,460 70,023 87,098 73,673 82,537 Net Income (Loss) Margin (7) -36% -17% -7% -6% -33% -38% 9% 40% 12% 8% Adjusted EBITDA Margin (8) 0% 14% 18% 30% 15% 21% 23% 32% 22% 26%
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