Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 (6-k)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorised.

Date: June 22, 2022

Eni: Report on the purchase of treasury shares

during the period from June 13 to June 17, 2022

San Donato Milanese (Milan), 22 June 2022 - During the period from June 13 to June 17, 2022, Eni acquired n. 3,409,602 shares, at a weighted average price per share equal to 12.9077 euro, for a total consideration of 44,010,196.39 euro within the authorization to purchase treasury shares approved at Eni's Shareholders' Meeting on 11 May 2022, previously subject to disclosure pursuant to art. 144-bis of Consob Regulation 11971/1999.

On the basis of the information provided by the intermediary appointed to make the purchases, the following are details of transactions for the purchase of treasury shares on the Electronic Stock Market on a daily basis:

Since the start of the programme, Eni purchased n. 9,632,002 treasury shares (equal to 0.27% of the share capital) for an aggregate amount of 132,191,499 euro. Following the purchases made until 17 June 2022, considering the treasury shares already held and the cancellation of 34,106,871 treasury shares resolved by Eni's Shareholders' Meeting of 11 May 2022, Eni holds n. 41,363,304 shares equal to 1.16% of the share capital.

Details of the daily transactions are reported below.