X0206 3 2024-02-05 0 0002002038 Legato Merger Corp. III LEGT 0001441252 Pratt Brian C/O LEGATO MERGER CORP III 777 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017 1 0 0 1 Non-Executive Chairman Ordinary shares 1200000 D Warrant 11.50 Ordinary shares 75000 D Includes securities within 150,000 Units the Reporting Person has irrevocably committed to purchase upon consummation of the Issuer's initial public offering. Each Unit consists of one ordinary share and one half of one warrant. Each warrant will become exercisable 30 days after the completion by the Issuer of an initial business combination. Each warrant will expire five years after the completion by the Issuer of an initial business combination, or earlier upon redemption; provided that the warrants will expire earlier if the Issuer has not completed an initial business combination within the required time period and liquidates the trust account in connection therewith. /s/ Brian Pratt 2024-02-05