1. During 2024, organisational changes took place that changed the scope and number of the Key Management Personnel. The figure only takes into account the number of shares held by the current key management personnel and, therefore, differs from the total number of shares at the end of 2024 reported last year.

2. Terna S.p.A. and its subsidiaries.

3. In this column - added to Form 7-ter of Annex 3A provided for in art. 84-quater, paragraph 4 of CONSOB Resolution 11971/99 - shows if the shares are held under ownership or a pledge, are held in usufruct, have been deposited, lent or borrowed, etc.

4. Shares allocated free of charge in implementing the Performance Share Plan 2022 – 2026.

5. Sale for the purposes of sell to cover with regard to the grant free of charge implementing the Performance Share Plan 2022-2026.

6. Until the date of participation in the Board of Directors of Terna S.p.A. (i.e. 24 June 2025), no transactions on the Company's shares were notified.

7. Until the date of participation in the Board of Directors of Terna S.p.A. (i.e. 29 July 2025), no transactions on the Company's shares were notified.