Stagwell acquisitions, on the record

Word for word“On January 2, 2024, the Company acquired 100% of the interests in Team Epiphany, LLC., for $15.8 million of which $10.8 million was paid in cash and 798,000 shares of Class A Common Stock, par value $0.001 per share (the “Class A Common Stock”), subject to post-closing adjustments.” 10-K for 2023

Word for word“On March 1, 2024, the Company acquired 100% of the interests in Sidekick Live Limited., for £4.5 million of which £3.6 million (approximately $4.6 million) was paid in cash and 195,000 shares of Class A Common Stock, par value $0.001 per share, subject to post-closing adjustments.” 10-K for 2023

Word for word“For example, in April 2022, we acquired Brand New Galaxy, a scaled provider of end-to-end e-commerce services such as DTC strategy, digital content production, automation, and complex technology implementations.” 10-K for 2023

Word for word“Further, in April 2023, we acquired In the Company of Huskies, a Dublin-based creative shop with services such as creative and brand marketing, strategy, and insights, which functionally expanded Stagwell’s footprint to Ireland under the Forsman & Bodenfors brand.” 10-K for 2023

Word for word“We have built a successful track record of “bolt-on” acquisitions such as TrueLogic Software, LLC, Ramenu S.A., Polar Bear Development S.R.L., a Latin America engineering shop, and Kettle Solutions, LLC (“Kettle”), a content and digital design firm.” 10-K for 2023

Word for word“We have also made strategic acquisitions for the Stagwell Marketing Cloud, including The People Platform (formerly Epicenter Experience), an enterprise software company that leverages mobile and location data to map and sequence complex consumer behavior patterns, and Maru Group, a leading software experience and insights data platform.” 10-K for 2023

Word for word“We have also made strategic acquisitions for the Stagwell Marketing Cloud, including The People Platform (formerly Epicenter Experience), an enterprise software company that leverages mobile and location data to map and sequence complex consumer behavior patterns, and Maru Group, a leading software experience and insights data platform.” 10-K for 2023

Word for word“Between 2015 and 2021, we acquired companies including digital transformation and digital media groups like Code and Theory and ForwardPMX.” 10-K for 2023

Word for word“On January 1, 2025, the Company entered into a stock purchase agreement to acquire ADK Group, an integrated marketing solutions company.” 10-K for 2024

Word for word“On December 23, 2024, the Company entered into a sale purchase agreement to acquire Create Group Holding Limited, a strategic digital communications group in Middle East, for approximately $16 million subject to post-closing adjustments.” 10-K for 2024

Word for word“For example, we acquired Create. Group, a leading strategic digital communications group in the Middle East, to join the Code and Theory Network to help regional clients navigate the complexity of changing consumer behaviors, emerging technologies and AI.” 10-K for 2024

Word for word“Throughout the year, we continued to build on our track record of "bolt-on" digital acquisitions, including What's Next Partners, a French digital brand and marketing consultancy, and PROS Agency, a digital PR leader in Brazil.” 10-K for 2024

Word for word“Throughout the year, we continued to build on our track record of "bolt-on" digital acquisitions, including What's Next Partners, a French digital brand and marketing consultancy, and PROS Agency, a digital PR leader in Brazil.” 10-K for 2024

Word for word“We have also made strategic acquisitions for the Stagwell Marketing Cloud, including LEADERS/IM.AI (which will strengthen PRophet’s influencer marketing capabilities), UNICEPTA (which will expand PRophet’s media monitoring toolkit and the platform’s global reach), and BERA.ai, a leading predictive brand technology platform that will elevate Stagwell Marketing Cloud’s market research capabilities.” 10-K for 2024

Word for word“We have also made strategic acquisitions for the Stagwell Marketing Cloud, including LEADERS/IM.AI (which will strengthen PRophet’s influencer marketing capabilities), UNICEPTA (which will expand PRophet’s media monitoring toolkit and the platform’s global reach), and BERA.ai, a leading predictive brand technology platform that will elevate Stagwell Marketing Cloud’s market research capabilities.” 10-K for 2024

Word for word“We have also made strategic acquisitions for the Stagwell Marketing Cloud, including LEADERS/IM.AI (which will strengthen PRophet’s influencer marketing capabilities), UNICEPTA (which will expand PRophet’s media monitoring toolkit and the platform’s global reach), and BERA.ai, a leading predictive brand technology platform that will elevate Stagwell Marketing Cloud’s market research capabilities.” 10-K for 2024

Word for word“In 2024, we acquired or signed agreements to acquire nine international businesses: Create. Group (MENA), UNICEPTA (Germany), Consulum (MENA), LEADERS (Israel), Business Traveller (Global), Luxine Relations Publiques (Canada), PROS Agency (Brazil), What’s Next Partners (France) and Sidekick (U.K.).” 10-K for 2024

Word for word“The increase in net acquisitions (divestitures) was primarily driven by acquisitions and dispositions, including the acquisitions of Epiphany, Movers and Shakers, Left Field Labs, and WNP, partially offset by the sale of Concentric in the fourth quarter of 2023.” 10-K for 2024

Word for word“Gain on sale of business — 94,505 Other, net (1,372) (359) Income before income taxes and equity in earnings of non-consolidated affiliates 37,723 91,069 Income tax expense 13,182 40,557 Income before equity in earnings of non-consolidated affiliates 24,541 50,512 Equity in income (loss) of non-consolidated affiliates 503 (8,870) Net income 25,044 41,642 Net income attributable to noncontrolling and redeemable noncontrolling interests (22,785) (41,508) Net income attributable to Stagwell Inc. common shareholders $ 2,259 $ 134 Reconciliation to Adjusted EBITDA: Net income attributable to Stagwell Inc. common shareholders $ 2,259 $ 134 Non-operating items (1) 130,809 90,393 Operating income 133,068 90,527 Depreciation and amortization 151,652 142,831 Impairment and other losses 1,715 11,395 Stock-based compensation 52,161 57,179 Deferred acquisition consideration 22,995 13,060 Other items, net 49,196 45,147 Adjusted EBITDA $ 410,787 $ 360,139 (1) Non-operating items includes items within the Statements of Operations, below Operating Income, and above Net income (loss) attributable to Stagwell Inc. common shareholders. 33 Table of Contents YEAR ENDED DECEMBER 31, 2024 COMPARED TO YEAR ENDED DECEMBER 31, 2023 Consolidated Results of Operations The components of operating results for the year ended December 31, 2024, compared to the year ended December 31, 2023, were as follows: Year Ended December 31, 2024 2023 Change (dollars in thousands) $ % Revenue $ 2,841,216 $ 2,527,177 $ 314,039 12.4 % Operating Expenses Cost of services 1,842,978 1,621,174 221,804 13.7 % Office and general expenses 711,803 661,250 50,553 7.6 % Depreciation and amortization 151,652 142,831 8,821 6.2 % Impairment and other losses 1,715 11,395 (9,680) (84.9) % $ 2,708,148 $ 2,436,650 $ 271,498 11.1 % Operating Income $ 133,068 $ 90,527 $ 42,541 47.0 % Year Ended December 31, 2024 2023 Change (dollars in thousands) $ % Net Revenue $ 2,296,662 $ 2,152,454 $ 144,208 6.7 % Billable costs 544,554 374,723 169,831 45.3 % Revenue 2,841,216 2,527,177 314,039 12.4 % Billable costs 544,554 374,723 169,831 45.3 % Staff costs 1,449,706 1,389,168 60,538 4.4 % Administrative costs 281,707 259,780 21,927 8.4 % Unbillable and other costs, net 154,462 143,367 11,095 7.7 % Adjusted EBITDA 410,787 360,139 50,648 14.1 % Stock-based compensation 52,161 57,179 (5,018) (8.8) % Depreciation and amortization 151,652 142,831 8,821 6.2 % Deferred acquisition consideration 22,995 13,060 9,935 76.1 % Impairment and other losses 1,715 11,395 (9,680) (84.9) % Other items, net 49,196 45,147 4,049 9.0 % Operating Income (1) $ 133,068 $ 90,527 $ 42,541 47.0 % (1) See the Results of Operations section above for a reconciliation of Operating Income to Net income (loss) attributable to Stagwell Inc. common shareholders.” 10-K for 2024

Word for word“On January 30, 2026, the Company acquired Wavelength, a digital advocacy and communications company, for an estimated purchase price of $10.2 million, of which approximately $4.6 million was paid in cash and approximately $5.6 million was paid in 863,624 shares of the Company’s Class A Common Stock subject to post-closing adjustments.” 10-K for 2025

Word for word“In 2025, we acquired ADK Global (“ADK”), an integrated marketing services company with 10 markets around the world, but predominantly in Asia Pacific.” 10-K for 2025

Word for word“Loss on Sale of Business Loss on sale of business for the year ended December 31, 2025 was $2.2 million due to the sale of a Brand that was non-core to our prospective business operations in the Marketing Services segment.” 10-K for 2025