X0306 4 2021-06-29 0 0001821806 Leslie's, Inc. LESL 0001807130 Strain John 2005 EAST INDIAN SCHOOL ROAD PHOENIX AZ 85016 1 0 0 0 Common Stock, par value $0.001 per share 2021-06-29 4 S 0 716 26.81 D 38221 D Represents shares of common stock sold by the Reporting Person pursuant to the underwriters' partial exercise of their overallotment option in connection with the previously announced secondary offering by certain selling stockholders of the Issuer. /s/ Brad A. Gazaway, as Attorney-in-Fact for John Strain 2021-06-30