X0306 4 2023-03-13 0001805833 System1, Inc. SST 0001704720 Cannae Holdings, Inc. 1701 VILLAGE CENTER CIRCLE LAS VEGAS NV 89134 true 0001546148 Cannae Holdings, LLC 1701 VILLAGE CENTER CIRCLE LAS VEGAS NV 89134 true Class A Common Stock 2023-03-13 4 J 0 1722235 A 27122794 I Directly held by Cannae Holdings, LLC The Reporting Person received a distribution of shares of Class A common stock from Trasimine Trebia, LP on a pro rata basis for no additional consideration. Cannae Holdings, LLC is a wholly-owned subsidiary of Cannae Holdings, Inc. /s/Michael L. Gravelle Cannae Holdings, Inc. Executive Vice President, General Counsel and Corporate Secretary 2023-03-14 /s/Michael L. Gravelle Cannae Holdings, LLC Managing Director, General Counsel and Corporate Secretary 2023-03-14