Saipem S.p.A.: Information Document relating to the new Long-Term Variable Incentive Plan 2023-2025, prepared in compliance with art. 114-bis of Legislative Decree 58/1998 (TUF) and art. 84-bis of Consob Issuers’ Regulations n. 11971/1999 - Saipem's Annual General Meeting to be held on May 3, 2023 (single call).