FOR IMMEDIATE ISSUE STAGWELL INC. (NASDAQ: STGW) REPORTS RESULTS FOR THE THREE AND TWELVE MONTHS ENDED DECEMBER 31, 2023 Expects 2024 Organic Net Revenue Growth of 5% to 7%; Adjusted EBITDA of $400 million to $450 million; Free Cash Flow Conversion of ~50% Net Revenue Growth of 31% from Stagwell Marketing Cloud Group in FY23 Growth of 13% in International Net Revenue in FY23, Led by 17% Growth in EMEA $65 million of net new business in Q4; LTM net new business exceeds $270 million FY Revenue of $2,527 milli ...

Third Quarter 2023 EARNINGS PRESENTATION NOVEMBER 2 | 2023 FORWARD LOOKING STATEMENTS & OTHER INFORMATION This document contains forward-looking statements. within the meaning of 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”). The Company’s representatives may also make forward-looking statements orally or in writing from time to time. Statements in this document that are not historical fac ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 For the quarterly period ended September 30, 2023 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaware 86 ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 For the quarterly period ended June 30, 2023 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaware 86-1390 ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 For the quarterly period ended March 31, 2023 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaware 86-139 ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2022 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaware 86-1390679 (State or other ju ...