Enel S p A : informs about the purchase of treasury shares between march 23rd and 25th, 2026 and about the conclusion of the share buyback program

About this update from Enel Spa

International Press Office Investor Relations T +39 06 8305 5699 T +39 06 8305 7975 [email protected] [email protected] [email protected] enel.com enel.com ENEL INFORMS ABOUT THE PURCHASE OF TREASURY SHARES BETWEEN MARCH 23 RD AND 25 TH , 2026 AND ABOUT THE CONCLUSION OF THE SHARE BUYBACK PROGRAM Rome, March 30 th , 2026 - Enel S.p.A. ("Enel" or the "Company") announces that between March 23 rd and 25 th , 2026, it purchased 29,804,336 treasury shares at a volume-weighted average price of 9.1910 euros per share, on the regulated market Euronext Milan as well as on multilateral trading facilities, for a total consideration of 273,932,812.471 euros. The transaction follows the announcement on February 22 nd , 2026 concerning the start of a share buyback program (the "Program"), implementing the authorization granted by the Shareholders' Meeting held on May 22 nd , 2025. The Program was approved with the aim to provide Shareholders with a remuneration in addition to the distribution of dividends, as a result of the cancellation of treasury shares purchased for this purpose. On the basis of the information provided by the intermediary engaged to execute the purchases, the following table summarizes, in aggregate form on a daily basis and by trading venue, Enel ordinary share purchases carried out by the same intermediary on the period indicated above: Date Number of shares purchased Weighted average price (euros) Consideration (euros) Trading venue 23/03/2025 8,485,933 9.1515 77,658,945.515 Euronext Milan 23/03/2025 3,597,736 9.1515 32,924,568.357 DXE Europe 23/03/2025 521,340 9.1516 4,771,074.561 Aquis Exchange Europe 23/03/2025 400,004 9.1515 3,660,620.386 Turquoise Europe 24/03/2025 8,188,036 9.1893 75,242,697.144 Euronext Milan 24/03/2025 3,503,263 9.1899 32,194,530.936 DXE Europe 24/03/2025 505,353 9.1906 4,644,513.869 Aquis Exchange Europe 24/03/2025 392,890 9.1902 3,610,721.498 Turquoise Europe 25/03/2025 4,209,781 9.3176 39,225,140.205 Euronext Milan Total 29,804,336 9.1910 273,932,812.471 The attachment to this press release gives a daily breakdown of the purchases carried out. 1 Enel SpA - Registered Office: 00198 Rome - Italy - Viale Regina Margherita 137 - Companies Register of Rome and Tax I.D. 00811720580 - R.E.A. 756032 - VAT Code 15844561009 - Stock Capital Euro 10,166,679,946 fully paid-in. As a result of the above transactions, the Program, started on February 23 rd , 2026, under which 106,661,417 Enel shares (equal to approximately 1.0491% of total number of shares into which the share capital is currently divided), have been bought at a volume-weighted average price of 9.3755 euros per share, for a total consideration of 999,999,993.656 euros, has been completed. Considering the treasury shares already owned, Enel holds as of March 25 th , 2026, a total of 243,416,292 treasury shares, equal to approximately 2.3943% of the total number of shares into which the share capital is currently divided. Attachment Daily breakdown of purchases of Enel ordinary shares (ISIN code IT0003128367) carried out between March 23 rd and 25 th , 2026. Date and time (Italian local time) Number of shares purchased Unit price (euros) Total consideration (euros) Trading venue 23/03/2026 09:00:08 863 9.000 7,767.000 Euronext Milan 23/03/2026 09:00:08 9,137 9.000 82,233.000 Euronext Milan 23/03/2026 09:00:08 3,767 8.995 33,884.165 Euronext Milan 23/03/2026 09:00:13 4,053 8.995 36,456.735 Euronext Milan 23/03/2026 09:00:13 8,947 8.995 80,478.265 Euronext Milan 23/03/2026 09:00:13 10,233 8.995 92,045.835 Euronext Milan 23/03/2026 09:00:13 11,505 8.995 103,487.475 DXE Europe 23/03/2026 09:00:13 13,149 8.993 118,248.957 Euronext Milan 23/03/2026 09:00:16 3,482 8.992 31,310.144 Aquis Exchange Europe 23/03/2026 09:00:16 5,381 8.989 48,369.809 Aquis Exchange Europe 23/03/2026 09:00:16 949 8.989 8,530.561 Aquis Exchange Europe 23/03/2026 09:00:16 3,287 8.989 29,546.843 DXE Europe 23/03/2026 09:00:16 1,453 8.989 13,061.017 Turquoise Europe 23/03/2026 09:00:16 9,862 8.989 88,649.518 DXE Europe 23/03/2026 09:00:16 3,391 8.989 30,481.699 Turquoise Europe 23/03/2026 09:00:16 9,040 8.988 81,251.520 Euronext Milan 23/03/2026 09:00:16 2,465 8.987 22,152.955 Euronext Milan 23/03/2026 09:00:47 6,591 9.019 59,444.229 Euronext Milan 23/03/2026 09:00:49 3,203 9.022 28,897.466 DXE Europe 23/03/2026 09:00:49 1,103 9.018 9,946.854 DXE Europe 23/03/2026 09:00:53 5,275 9.038 47,675.450 Euronext Milan 23/03/2026 09:00:53 2,882 9.036 26,041.752 DXE Europe 23/03/2026 09:00:53 2,691 9.034 24,310.494 Euronext Milan 23/03/2026 09:00:53 1,322 9.034 11,942.948 Euronext Milan 23/03/2026 09:00:54 950 9.038 8,586.100 Euronext Milan 23/03/2026 09:00:59 652 9.045 5,897.340 DXE Europe 23/03/2026 09:00:59 3,291 9.045 29,767.095 DXE Europe 23/03/2026 09:00:59 5,426 9.042 49,061.892 Euronext Milan 23/03/2026 09:00:59 1,881 9.042 17,008.002 Euronext Milan 23/03/2026 09:00:59 6,513 9.042 58,890.546 Euronext Milan 23/03/2026 09:00:59 4 9.042 36.168 DXE Europe 23/03/2026 09:00:59 5,516 9.042 49,875.672 DXE Europe 23/03/2026 09:01:09 4,344 9.067 39,387.048 Euronext Milan 23/03/2026 09:01:19 3,620 9.063 32,808.060 Euronext Milan 23/03/2026 09:01:22 3,955 9.066 35,856.030 Euronext Milan 23/03/2026 09:01:23 2,647 9.063 23,989.761 Euronext Milan 23/03/2026 09:01:23 1,193 9.063 10,812.159 Euronext Milan 23/03/2026 09:01:29 1,373 9.071 12,454.483 DXE Europe 23/03/2026 09:01:31 34 9.080 308.720 DXE Europe 23/03/2026 09:01:31 750 9.080 6,810.000 DXE Europe 23/03/2026 09:01:31 1,500 9.079 13,618.500 DXE Europe 23/03/2026 09:01:31 82 9.079 744.478 DXE Europe 23/03/2026 09:01:31 226 9.081 2,052.306 Euronext Milan 23/03/2026 09:01:31 228 9.082 2,070.696 Euronext Milan 23/03/2026 09:01:31 946 9.083 8,592.518 Euronext Milan 23/03/2026 09:01:31 326 9.084 2,961.384 Euronext Milan 23/03/2026 09:01:31 358 9.084 3,252.072 Euronext Milan 23/03/2026 09:01:31 330 9.084 2,997.720 Euronext Milan 23/03/2026 09:01:31 1,348 9.086 12,247.928 Euronext Milan 23/03/2026 09:01:33 1,718 9.079 15,597.722 DXE Europe 23/03/2026 09:01:33 2,851 9.080 25,887.080 DXE Europe 23/03/2026 09:01:33 4,389 9.079 39,847.731 Euronext Milan 23/03/2026 09:01:43 4,904 9.103 44,641.112 Euronext Milan 23/03/2026 09:01:43 1,017 9.103 9,257.751 Euronext Milan 23/03/2026 09:01:43 2,721 9.103 24,769.263 Euronext Milan 23/03/2026 09:01:50 2,080 9.096 18,919.680 Turquoise Europe 23/03/2026 09:01:50 3,042 9.096 27,670.032 Aquis Exchange Europe 23/03/2026 09:01:50 2,638 9.098 24,000.524 DXE Europe 23/03/2026 09:01:50 573 9.098 5,213.154 Euronext Milan 23/03/2026 09:01:50 1,294 9.098 11,772.812 Euronext Milan 23/03/2026 09:01:50 2,636 9.093 23,969.148 Aquis Exchange Europe 23/03/2026 09:01:50 1,631 9.094 14,832.314 Euronext Milan 23/03/2026 09:01:50 2,422 9.092 22,020.824 Turquoise Europe 23/03/2026 09:02:03 5,491 9.079 49,852.789 Euronext Milan 23/03/2026 09:02:03 1,121 9.079 10,177.559 Euronext Milan 23/03/2026 09:02:03 385 9.079 3,495.415 Euronext Milan 23/03/2026 09:02:03 3,857 9.079 35,017.703 DXE Europe 23/03/2026 09:02:03 3,840 9.079 34,863.360 DXE Europe 23/03/2026 09:02:03 3,139 9.079 28,498.981 Euronext Milan 23/03/2026 09:02:04 4,160 9.073 37,743.680 DXE Europe 23/03/2026 09:02:03 4,535 9.073 41,146.055 Euronext Milan 23/03/2026 09:02:10 3,610 9.084 32,793.240 Euronext Milan 23/03/2026 09:02:16 3,250 9.090 29,542.500 Euronext Milan 23/03/2026 09:02:23 750 9.084 6,813.000 Euronext Milan 23/03/2026 09:02:23 624 9.084 5,668.416 Euronext Milan 23/03/2026 09:02:24 1,876 9.084 17,041.584 Euronext Milan 23/03/2026 09:02:36 3,081 9.084 27,987.804 Euronext Milan 23/03/2026 09:02:41 3,590 9.091 32,636.690 DXE Europe 23/03/2026 09:02:41 3,264 9.091 29,673.024 DXE Europe 23/03/2026 09:02:43 3,774 9.090 34,305.660 Euronext Milan 23/03/2026 09:02:43 3,460 9.090 31,451.400 Euronext Milan 23/03/2026 09:02:43 200 9.089 1,817.800 Euronext Milan 23/03/2026 09:02:43 2,881 9.089 26,185.409 Euronext Milan 23/03/2026 09:02:48 2,938 9.085 26,691.730 DXE Europe 23/03/2026 09:02:48 2,201 9.084 19,993.884 Euronext Milan 23/03/2026 09:02:48 3,389 9.083 30,782.287 Euronext Milan 23/03/2026 09:03:02 3,900 9.086 35,435.400 Euronext Milan 23/03/2026 09:03:02 4,225 9.085 38,384.125 Euronext Milan 23/03/2026 09:03:17 16 9.084 145.344 Euronext Milan 23/03/2026 09:03:18 3,936 9.089 35,774.304 DXE Europe 23/03/2026 09:03:20 2,331 9.091 21,191.121 Euronext Milan 23/03/2026 09:03:20 3,540 9.091 32,182.140 Euronext Milan 23/03/2026 09:03:24 4,303 9.108 39,191.724 Euronext Milan 23/03/2026 09:03:25 625 9.108 5,692.500 DXE Europe 23/03/2026 09:03:25 2,783 9.108 25,347.564 DXE Europe 23/03/2026 09:03:31 4,537 9.117 41,363.829 Euronext Milan 23/03/2026 09:03:31 3,483 9.115 31,747.545 Euronext Milan 23/03/2026 09:03:31 1,625 9.115 14,811.875 Euronext Milan 23/03/2026 09:03:31 1,560 9.115 14,219.400 Euronext Milan 23/03/2026 09:03:31 623 9.114 5,678.022 Turquoise Europe 23/03/2026 09:03:31 1,454 9.114 13,251.756 Turquoise Europe 23/03/2026 09:03:31 608 9.112 5,540.096 Euronext Milan 23/03/2026 09:03:31 2,101 9.112 19,144.312 Euronext Milan 23/03/2026 09:03:31 1,463 9.112 13,330.856 Euronext Milan 23/03/2026 09:03:31 894 9.111 8,145.234 Euronext Milan 23/03/2026 09:03:34 1,774 9.119 16,177.106 Aquis Exchange Europe 23/03/2026 09:03:37 2,862 9.116 26,089.992 DXE Europe 23/03/2026 09:03:37 650 9.116 5,925.400 DXE Europe 23/03/2026 09:03:37 1,774 9.116 16,171.784 Aquis Exchange Europe 23/03/2026 09:03:37 576 9.111 5,247.936 Turquoise Europe 23/03/2026 09:03:37 1,156 9.111 10,532.316 Turquoise Europe 23/03/2026 09:04:06 4,371 9.097 39,762.987 DXE Europe 23/03/2026 09:04:06 3,735 9.095 33,969.825 DXE Europe 23/03/2026 09:04:06 3,974 9.093 36,135.582 DXE Europe 23/03/2026 09:04:10 244 9.089 2,217.716 Euronext Milan 23/03/2026 09:04:10 156 9.089 1,417.884 Euronext Milan 23/03/2026 09:04:10 3,324 9.085 30,198.540 Euronext Milan 23/03/2026 09:04:10 1,033 9.084 9,383.772 Euronext Milan 23/03/2026 09:04:14 349 9.095 3,174.155 Euronext Milan 23/03/2026 09:04:23 954 9.095 8,676.630 Euronext Milan 23/03/2026 09:04:23 261 9.095 2,373.795 Euronext Milan 23/03/2026 09:04:28 4,972 9.095 45,220.340 Euronext Milan 23/03/2026 09:04:29 6,084 9.096 55,340.064 Euronext Milan 23/03/2026 09:04:29 121 9.096 1,100.616 Euronext Milan 23/03/2026 09:04:34 4,979 9.093 45,274.047 Euronext Milan 23/03/2026 09:04:34 679 9.092 6,173.468 Euronext Milan 23/03/2026 09:04:34 3,057 9.092 27,794.244 Euronext Milan 23/03/2026 09:04:34 961 9.092 8,737.412 Euronext Milan 23/03/2026 09:04:34 804 9.092 7,309.968 Euronext Milan 23/03/2026 09:04:34 766 9.092 6,964.472 Euronext Milan 23/03/2026 09:04:37 204 9.089 1,854.156 Euronext Milan 23/03/2026 09:04:37 166 9.089 1,508.774 Euronext Milan 23/03/2026 09:04:37 697 9.089 6,335.033 Euronext Milan 23/03/2026 09:04:37 645 9.089 5,862.405 Euronext Milan 23/03/2026 09:04:37 1 9.089 9.089 Euronext Milan 23/03/2026 09:04:37 3,110 9.089 28,266.790 Euronext Milan 23/03/2026 09:04:37 3,259 9.089 29,621.051 Euronext Milan 23/03/2026 09:04:50 3,095 9.089 28,130.455 Euronext Milan 23/03/2026 09:04:52 3,147 9.097 28,628.259 DXE Europe 23/03/2026 09:04:58 24 9.099 218.376 DXE Europe 23/03/2026 09:04:59 2,761 9.099 25,122.339 DXE Europe 23/03/2026 09:04:59 615 9.099 5,595.885 DXE Europe 23/03/2026 09:05:03 3,147 9.096 28,625.112 DXE Europe 23/03/2026 09:05:10 175 9.100 1,592.500 Euronext Milan 23/03/2026 09:05:10 3,641 9.100 33,133.100 Euronext Milan 23/03/2026 09:05:20 3,499 9.108 31,868.892 Euronext Milan 23/03/2026 09:05:20 3,469 9.108 31,595.652 Euronext Milan 23/03/2026 09:05:20 9,862 9.104 89,783.648 Euronext Milan 23/03/2026 09:05:20 403 9.103 3,668.509 Euronext Milan 23/03/2026 09:05:20 323 9.103 2,940.269 Euronext Milan 23/03/2026 09:05:20 68 9.103 619.004 Euronext Milan 23/03/2026 09:05:20 3,055 9.103 27,809.665 Euronext Milan 23/03/2026 09:05:20 2,023 9.099 18,407.277 DXE Europe 23/03/2026 09:05:20 1,189 9.100 10,819.900 Turquoise Europe 23/03/2026 09:05:20 10,684 9.101 97,235.084 Euronext Milan 23/03/2026 09:05:20 7,839 9.099 71,327.061 DXE Europe 23/03/2026 09:05:20 5,814 9.098 52,895.772 DXE Europe 23/03/2026 09:05:20 4,048 9.098 36,828.704 DXE Europe 23/03/2026 09:05:20 9,040 9.098 82,245.920 Euronext Milan 23/03/2026 09:05:21 1,785 9.097 16,238.145 Turquoise Europe 23/03/2026 09:05:21 1,738 9.095 15,807.110 Aquis Exchange Europe 23/03/2026 09:05:22 1,000 9.092 9,092.000 DXE Europe 23/03/2026 09:05:47 3,376 9.130 30,822.880 Euronext Milan 23/03/2026 09:05:47 300 9.129 2,738.700 Euronext Milan

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