Exhibit 99.1 System1 Announces Fourth Quarter and Full Year 2023 Financial Results All Key Financial Results Above the High-End of Guidance Range Fourth Quarter Financial Highlights: Fiscal Year 2023 Results: LOS ANGELES, CA – March 18, 2024 – System1, Inc. (NYSE: SST) ("System1" or the "Company"), an omnichannel customer acquisition marketing platform, announced its financial results for the fourth quarter and full year 2023. Unless otherwise noted, all financial results are reflect the divestiture of Tota ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from __________ to __________ Commission file number 001-39331 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 92-3978051 (State or other juri ...

System1, Inc. (NYSE:SST) Q3 2023 Earnings Conference Call December 12, 2023 5:00 PM ET Company Participants Kyle Ostgaard - Vice President, Finance Michael Blend - Co-Founder and Chief Executive Officer Tridivesh Kidambi - Chief Financial Officer Conference Call Participants Dan Kurnos - Benchmark Kyle Ostgaard Thank you for standing by, and welcome to the Third Quarter 2023 Conference Call and Webcast for System1. Joining me today to discuss System1's business and financial results are our Co-Founder and C ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ 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 transition period from __________ to __________ Commission file number 001-39331 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 92-3978051 (State or o ...

Investor Presentation August 2023 Safe Harbor Disclaimer for Forward-Looking Statements Forward-Looking Statements Such risks, uncertainties and assumptions include, but are not limited to: (1) our ability to grow and manage growth profitably, and retain its key employees; (2) our ability to acquire businesses on acceptable terms and to successfully integrate and recognize anticipated synergies from acquired businesses; (3) use of cash and other available liquidity to grow and invest in our businesses; (4) ...

System1, Inc. (NYSE:SST) Q2 2023 Earnings Conference Call August 9, 2023 5:00 PM ET Company Participants Michael Blend - Co-founder & Chief Executive Officer Tridivesh Kidambi - Chief Financial Officer Conference Call Participants Operator Thank you for standing by, and welcome to the Second Quarter 2023 Conference Call and Webcast for System1. Joining me today to discuss System1’s business and financial results are our Co-founder and CEO, Michael Blend; and our Chief Financial Officer, Tridivesh Kidambi. A ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) 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 transition period from __________ to __________ Commission file number 001-39331 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 92-3978051 (State or other ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) 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 transition period from __________ to __________ Commission file number 001-39331 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 98-1531250 (State or other ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ 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 transition period from __________ to __________ Commission file number 001-39331 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 92-3978051 (State or other juri ...

System1, Inc. (NYSE:SST) Q3 2022 Earnings Conference Call November 10, 2022 5:00 PM ET Company Participants Michael Blend – Co-founder and Chief Executive Officer Tridivesh Kidambi – Chief Financial Officer Conference Call Participants Tom Forte – D.A. Davidson Shweta Khajuria – Evercore ISI Dan Kurnos – Benchmark Operator Thank you for standing by, and welcome to the Third Quarter 2022 Conference Call and Webcast for System1. Joining me today to discuss System1’s business and financial results are our Co-f ...