X0202 SCHEDULE 13G 0002160120 XXXXXXXX LIVE Ordinary Shares, par value $0.02288 per share. 09/21/2026 0002131813 newcleo plc G6448L103 55 South Audley Street London X0 W1K 2QH Rule 13d-1(d) Elysia Capital I SCSp N4 19210290.00 0.00 19210290.00 0.00 19210290.00 N 6.8 PN Consists of 19,210,290 Ordinary Shares held of record by Elysia Capital I SCSp. Elysia Capital I SCSp is a Luxembourg special limited partnership managed by its general partner, Elysia GP S.a r.l., the directors of which are Luca Alemani, David Luksenburg and Dominique Perilleux. Elysia Capital I SCSp holds sole voting and dispositive power over such Ordinary Shares, exercised through its general partner. Stefano Buono is the ultimate beneficial owner of Elysia Capital I SCSp and, by virtue of his control of Elysia Capital I SCSp, may be deemed to share voting and dispositive power over such Ordinary Shares. The percentage set forth herein is calculated based upon 281,534,950 Ordinary Shares of the Issuer issued and outstanding as of the date hereof. he Reporting Persons have entered into a Joint Filing Agreement, a copy of which is filed as Exhibit 99.1 hereto, pursuant to which the Reporting Persons have agreed to file this statement jointly on their behalf in accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934. Buono Stefano L6 913045.00 19210290.00 913045.00 19210290.00 20123335.00 N 7.1 IN Consists of (i) 19,210,290 Ordinary Shares held of record by Elysia Capital I SCSp, (ii) 119,603 Ordinary Shares held of record directly by Mr. Buono and (iii) 793,442 Ordinary Shares issuable upon the exercise of options held by Mr. Buono that are exercisable within 60 days. Mr. Buono holds sole voting and dispositive power over the 913,045 Ordinary Shares described in clauses (ii) and (iii). Mr. Buono is the ultimate beneficial owner of Elysia Capital I SCSp and, by virtue of his control of Elysia Capital I SCSp, may be deemed to share voting and dispositive power over the 19,210,290 Ordinary Shares described in clause (i). Mr. Buono disclaims beneficial ownership of the Ordinary Shares held of record by Elysia Capital I SCSp, except to the extent of any pecuniary interest therein. The percentage set forth herein is calculated based upon 281,534,950 Ordinary Shares of the Issuer issued and outstanding as of the date hereof, plus the 793,442 Ordinary Shares issuable upon the exercise of options held by Mr. Buono that are exercisable within 60 days, which are deemed outstanding for the purpose of computing Mr. Buono's percentage in accordance with Rule 13d-3(d)(1)(i) under the Securities Exchange Act of 1934. The Reporting Persons have entered into a Joint Filing Agreement, a copy of which is filed as Exhibit 99.1 hereto, pursuant to which the Reporting Persons have agreed to file this statement jointly on their behalf in accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934. newcleo plc 55 South Audley Street, London, United Kingdom, W1K 2QH Elysia Capital I SCSp; Stefano Buono (each a "Reporting Person" and, together, the "Reporting Persons"). The address of Elysia Capital I SCSp is 2, Place de Strasbourg, 2562 Luxembourg, Grand Duchy of Luxembourg. The address of Stefano Buono is Via Duchessa Jolanda 13A, 10138 Turin (TO), Italy. Elysia Capital I SCSp is a special limited partnership (societe en commandite speciale) organized under the laws of the Grand Duchy of Luxembourg. Stefano Buono is a citizen of Italy. Y Elysia Capital I SCSp: 19,210,290; Stefano Buono: 20,123,335 Elysia Capital I SCSp: 6.8%; Stefano Buono: 7.1% Elysia Capital I SCSp: 19,210,290 Stefano Buono: 913,045 Elysia Capital I SCSp: 0 Stefano Buono: 19,210,290 Elysia Capital I SCSp: 19,210,290 Stefano Buono: 913,045 Elysia Capital I SCSp: 0 Stefano Buono: 19,210,290 Y Y Y N The Reporting Persons are Elysia Capital I SCSp, a Luxembourg special limited partnership managed by its general partner, Elysia GP S.a r.l., and Stefano Buono, the ultimate beneficial owner of Elysia Capital I SCSp. Mr. Buono disclaims beneficial ownership of the Ordinary Shares held by Elysia Capital I SCSp, except to the extent of any pecuniary interest therein. Y Y Exhibit 99.1 Agreement pursuant to Rule 13d-1(k)(1) by and among Elysia Capital I SCSp and Stefano Buono. Elysia Capital I SCSp /s/ David Luksenburg 10/15/2026 Buono Stefano /s/ Stefano Buono 10/15/2026