X0508 4 2023-12-07 0 0001821806 Leslie's, Inc. LESL 0001472330 Egeck Michael R. 2005 EAST INDIAN SCHOOL ROAD PHOENIX AZ 85016 1 1 0 0 Chief Executive Officer 0 Restricted Stock Units 0.00 2023-12-07 4 A 0 165746 0.00 A Common Stock 165746 495882 D Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's Common Stock. Represents a grant of RSUs, of which 165,746 will vest in equal installments on December 7, 2024, December 7, 2025, December 7, 2026, and December 7, 2027, subject to Mr. Egeck's continuous employment or service with the Issuer or an affiliate until the applicable vesting date. /s/ Brad A. Gazaway, as Attorney-in-Fact for Michael R. Egeck 2023-12-08