Enel S p A : informs about the purchase of treasury shares between March 9th and 13th, 2026

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 9 TH AND 13 TH , 2026 Rome, March 17 th , 2026 - Enel S.p.A. ("Enel" or the "Company") announces that between March 9 th and 13 th , 2026, it purchased 13,270,419 treasury shares at a volume-weighted average price of 9.3459 euros per share, on the regulated market Euronext Milan as well as on multilateral trading facilities, for a total consideration of 124,023,408.265 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 09/03/2026 7,438,788 9.3439 69,507,114.511 Euronext Milan 09/03/2026 3,277,132 9.3438 30,620,858.546 DXE Europe 09/03/2026 501,621 9.3532 4,691,737.074 Aquis Exchange Europe 09/03/2026 423,119 9.3536 3,957,685.959 Turquoise Europe 10/03/2026 - 0.0000 0.000 - 11/03/2026 - 0.0000 0.000 - 12/03/2026 1,629,759 9.3548 15,246,012.176 Euronext Milan 13/03/2026 - 0.0000 0.000 - Total 13,270,419 9.3459 124,023,408.265 The attachment to this press release gives a daily breakdown of the purchases carried out. Since the beginning of the Program, Enel has purchased 51,610,098 treasury shares (equal to approximately 0.5076% of the total number of shares into which the share capital is currently divided), for a total consideration of 489,435,856.958 euros. Considering the treasury shares already owned, Enel holds as of March 13 th , 2026, a total of 188,364,973 treasury shares, equal to approximately 1.8528% of the total number of shares into which the share capital is currently divided. 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. Attachment Daily breakdown of purchases of Enel ordinary shares (ISIN code IT0003128367) carried out between March 9 th and 13 th , 2026. Date and time (Italian local time) Number of shares purchased Unit price (euros) Total consideration (euros) Trading venue 09/03/2026 09:12:51 978 9.201 8,998.578 Euronext Milan 09/03/2026 09:12:51 9,005 9.201 82,855.005 Euronext Milan 09/03/2026 09:12:51 6,430 9.200 59,156.000 Euronext Milan 09/03/2026 09:12:51 2,745 9.200 25,254.000 Euronext Milan 09/03/2026 09:12:53 8,340 9.196 76,694.640 Euronext Milan 09/03/2026 09:13:33 11,745 9.179 107,807.355 Euronext Milan 09/03/2026 09:14:05 1,620 9.214 14,926.680 Euronext Milan 09/03/2026 09:14:05 4,667 9.214 43,001.738 Euronext Milan 09/03/2026 09:14:14 11,773 9.226 108,617.698 DXE Europe 09/03/2026 09:14:14 8,409 9.225 77,573.025 DXE Europe 09/03/2026 09:14:14 8,409 9.224 77,564.616 DXE Europe 09/03/2026 09:14:14 1,550 9.223 14,295.650 Euronext Milan 09/03/2026 09:14:14 2,694 9.223 24,846.762 Euronext Milan 09/03/2026 09:14:14 4,165 9.223 38,413.795 Euronext Milan 09/03/2026 09:14:29 1,487 9.220 13,710.140 Euronext Milan 09/03/2026 09:14:29 7,763 9.220 71,574.860 Euronext Milan 09/03/2026 09:14:42 1,008 9.226 9,299.808 Aquis Exchange Europe 09/03/2026 09:14:42 1,009 9.226 9,309.034 Aquis Exchange Europe 09/03/2026 09:14:42 1,678 9.225 15,479.550 Turquoise Europe 09/03/2026 09:14:42 6,593 9.224 60,813.832 Euronext Milan 09/03/2026 09:14:42 1,618 9.224 14,924.432 Euronext Milan 09/03/2026 09:14:42 2,017 9.223 18,602.791 Aquis Exchange Europe 09/03/2026 09:14:42 2,828 9.224 26,085.472 DXE Europe 09/03/2026 09:14:42 1,677 9.223 15,466.971 Turquoise Europe 09/03/2026 09:14:42 4,525 9.222 41,729.550 Euronext Milan 09/03/2026 09:14:42 3,884 9.222 35,818.248 Euronext Milan 09/03/2026 09:15:06 544 9.200 5,004.800 Euronext Milan 09/03/2026 09:15:11 8,476 9.197 77,953.772 Euronext Milan 09/03/2026 09:15:18 751 9.197 6,906.947 Euronext Milan 09/03/2026 09:15:18 7,168 9.197 65,924.096 Euronext Milan 09/03/2026 09:15:18 557 9.197 5,122.729 Euronext Milan 09/03/2026 09:15:27 711 9.200 6,541.200 Euronext Milan 09/03/2026 09:15:34 3,485 9.197 32,051.545 Euronext Milan 09/03/2026 09:15:47 10,170 9.205 93,614.850 DXE Europe 09/03/2026 09:15:47 2,608 9.203 24,001.424 DXE Europe 09/03/2026 09:15:47 10,106 9.203 93,005.518 DXE Europe 09/03/2026 09:15:57 500 9.208 4,604.000 Euronext Milan 09/03/2026 09:16:08 751 9.215 6,920.465 Euronext Milan 09/03/2026 09:16:12 8,665 9.215 79,847.975 Euronext Milan 09/03/2026 09:16:12 4,491 9.215 41,384.565 Euronext Milan 09/03/2026 09:16:12 1,823 9.214 16,797.122 Aquis Exchange Europe 09/03/2026 09:16:12 3,306 9.213 30,458.178 DXE Europe 09/03/2026 09:16:12 12,840 9.213 118,294.920 Euronext Milan 09/03/2026 09:17:00 3,935 9.228 36,312.180 Euronext Milan 09/03/2026 09:17:00 12,840 9.231 118,526.040 Euronext Milan 09/03/2026 09:17:00 1,356 9.229 12,514.524 Turquoise Europe 09/03/2026 09:17:00 8,560 9.229 79,000.240 Euronext Milan 09/03/2026 09:17:00 1,543 9.227 14,237.261 Euronext Milan 09/03/2026 09:17:00 7,017 9.227 64,745.859 Euronext Milan 09/03/2026 09:17:00 1,658 9.226 15,296.708 Turquoise Europe 09/03/2026 09:17:05 1,822 9.226 16,809.772 Aquis Exchange Europe 09/03/2026 09:17:34 12,840 9.239 118,628.760 DXE Europe 09/03/2026 09:17:34 2,742 9.238 25,330.596 DXE Europe 09/03/2026 09:17:34 6,674 9.238 61,654.412 DXE Europe 09/03/2026 09:17:34 7,874 9.235 72,716.390 DXE Europe 09/03/2026 09:18:08 650 9.247 6,010.550 Euronext Milan 09/03/2026 09:18:08 916 9.247 8,470.252 Euronext Milan 09/03/2026 09:18:08 718 9.247 6,639.346 Euronext Milan 09/03/2026 09:18:10 900 9.247 8,322.300 Euronext Milan 09/03/2026 09:18:10 413 9.247 3,819.011 Euronext Milan 09/03/2026 09:18:12 1,128 9.247 10,430.616 Euronext Milan 09/03/2026 09:18:12 628 9.247 5,807.116 Euronext Milan 09/03/2026 09:18:28 900 9.258 8,332.200 Euronext Milan 09/03/2026 09:18:28 1,050 9.258 9,720.900 Euronext Milan 09/03/2026 09:18:29 555 9.258 5,138.190 Euronext Milan 09/03/2026 09:18:29 743 9.258 6,878.694 Euronext Milan 09/03/2026 09:18:29 900 9.258 8,332.200 Euronext Milan 09/03/2026 09:18:29 839 9.258 7,767.462 Euronext Milan 09/03/2026 09:18:35 4,050 9.267 37,531.350 Euronext Milan 09/03/2026 09:18:35 2,626 9.267 24,335.142 Euronext Milan 09/03/2026 09:18:35 783 9.267 7,256.061 Euronext Milan 09/03/2026 09:18:35 3,441 9.265 31,880.865 Euronext Milan 09/03/2026 09:18:35 8,612 9.265 79,790.180 Euronext Milan 09/03/2026 09:18:35 7,690 9.265 71,247.850 Euronext Milan 09/03/2026 09:18:35 1,376 9.264 12,747.264 Turquoise Europe 09/03/2026 09:18:49 1,666 9.264 15,433.824 Aquis Exchange Europe 09/03/2026 09:18:57 1,666 9.260 15,427.160 Aquis Exchange Europe 09/03/2026 09:18:57 8,613 9.258 79,739.154 Euronext Milan 09/03/2026 09:18:57 1,375 9.257 12,728.375 Turquoise Europe 09/03/2026 09:19:06 10,430 9.257 96,550.510 DXE Europe 09/03/2026 09:19:11 13,907 9.254 128,695.378 DXE Europe 09/03/2026 09:19:16 826 9.260 7,648.760 Euronext Milan 09/03/2026 09:19:16 5,395 9.260 49,957.700 Euronext Milan 09/03/2026 09:19:22 2,488 9.259 23,036.392 Euronext Milan 09/03/2026 09:19:30 10 9.257 92.570 Euronext Milan 09/03/2026 09:19:30 3,722 9.257 34,454.554 Euronext Milan 09/03/2026 09:19:34 2,035 9.256 18,835.960 Aquis Exchange Europe 09/03/2026 09:19:34 1,554 9.254 14,380.716 Turquoise Europe 09/03/2026 09:19:34 620 9.252 5,736.240 DXE Europe 09/03/2026 09:19:35 590 9.252 5,458.680 Aquis Exchange Europe 09/03/2026 09:19:55 1,036 9.246 9,578.856 Turquoise Europe 09/03/2026 09:19:58 969 9.246 8,959.374 Euronext Milan 09/03/2026 09:19:58 1,407 9.246 13,009.122 Euronext Milan 09/03/2026 09:20:04 971 9.250 8,981.750 Euronext Milan 09/03/2026 09:20:04 3,377 9.250 31,237.250 Euronext Milan 09/03/2026 09:20:16 8,065 9.254 74,633.510 Euronext Milan 09/03/2026 09:20:18 8,065 9.252 74,617.380 Euronext Milan 09/03/2026 09:20:40 7,802 9.263 72,269.926 Euronext Milan 09/03/2026 09:20:41 4,519 9.262 41,854.978 Euronext Milan 09/03/2026 09:20:41 1,729 9.262 16,013.998 Euronext Milan 09/03/2026 09:20:41 979 9.262 9,067.498 Euronext Milan 09/03/2026 09:20:41 591 9.262 5,473.842 Euronext Milan 09/03/2026 09:20:41 6,121 9.260 56,680.460 Euronext Milan 09/03/2026 09:20:41 1,330 9.260 12,315.800 Euronext Milan 09/03/2026 09:20:49 8,064 9.263 74,696.832 DXE Europe 09/03/2026 09:21:08 866 9.269 8,026.954 DXE Europe 09/03/2026 09:21:08 666 9.268 6,172.488 DXE Europe 09/03/2026 09:21:08 1,606 9.267 14,882.802 Aquis Exchange Europe 09/03/2026 09:21:08 7,132 9.266 66,085.112 DXE Europe 09/03/2026 09:21:29 998 9.269 9,250.462 Turquoise Europe 09/03/2026 09:21:30 5,390 9.265 49,938.350 Euronext Milan 09/03/2026 09:21:44 1,025 9.266 9,497.650 DXE Europe 09/03/2026 09:21:44 1,498 9.266 13,880.468 Turquoise Europe 09/03/2026 09:21:44 612 9.265 5,670.180 Euronext Milan 09/03/2026 09:21:44 1,199 9.265 11,108.735 Euronext Milan 09/03/2026 09:21:56 1,338 9.274 12,408.612 Euronext Milan 09/03/2026 09:21:56 3,932 9.274 36,465.368 Euronext Milan 09/03/2026 09:21:56 8,819 9.274 81,787.406 Euronext Milan 09/03/2026 09:22:05 2,971 9.289 27,597.619 Euronext Milan 09/03/2026 09:22:06 8,084 9.287 75,076.108 Euronext Milan 09/03/2026 09:22:06 888 9.286 8,245.968 Euronext Milan 09/03/2026 09:22:06 258 9.286 2,395.788 Euronext Milan 09/03/2026 09:22:06 2,625 9.286 24,375.750 Euronext Milan 09/03/2026 09:22:06 307 9.286 2,850.802 Euronext Milan 09/03/2026 09:22:06 7,349 9.284 68,228.116 Euronext Milan 09/03/2026 09:22:27 9,562 9.299 88,917.038 DXE Europe 09/03/2026 09:22:30 7,132 9.297 66,306.204 DXE Europe 09/03/2026 09:22:31 7,355 9.295 68,364.725 DXE Europe 09/03/2026 09:22:44 900 9.299 8,369.100 Euronext Milan 09/03/2026 09:22:44 743 9.299 6,909.157 Euronext Milan 09/03/2026 09:22:46 9,562 9.298 88,907.476 Euronext Milan 09/03/2026 09:22:49 4,187 9.296 38,922.352 Euronext Milan 09/03/2026 09:22:49 505 9.296 4,694.480 Aquis Exchange Europe 09/03/2026 09:22:49 1,550 9.296 14,408.800 Aquis Exchange Europe 09/03/2026 09:22:49 4,364 9.295 40,563.380 Euronext Milan 09/03/2026 09:22:49 1,938 9.295 18,013.710 Euronext Milan 09/03/2026 09:22:55 1,659 9.294 15,418.746 Aquis Exchange Europe 09/03/2026 09:22:55 986 9.293 9,162.898 Turquoise Europe 09/03/2026 09:22:55 478 9.293 4,442.054 Turquoise Europe 09/03/2026 09:22:55 4,364 9.292 40,550.288 Euronext Milan 09/03/2026 09:22:55 3,290 9.292 30,570.680 Euronext Milan 09/03/2026 09:23:20 193 9.277 1,790.461 DXE Europe 09/03/2026 09:23:35 8,909 9.293 82,791.337 Euronext Milan 09/03/2026 09:23:46 7,424 9.291 68,976.384 Euronext Milan 09/03/2026 09:23:46 550 9.290 5,109.500 Euronext Milan 09/03/2026 09:23:48 125 9.289 1,161.125 Euronext Milan 09/03/2026 09:23:48 117 9.289 1,086.813 Euronext Milan 09/03/2026 09:23:48 245 9.289 2,275.805 Euronext Milan 09/03/2026 09:23:48 653 9.289 6,065.717 Euronext Milan 09/03/2026 09:23:48 6,284 9.289 58,372.076 Euronext Milan 09/03/2026 09:24:10 9,877 9.294 91,796.838 DXE Europe 09/03/2026 09:24:10 2,379 9.292 22,105.668 DXE Europe 09/03/2026 09:24:10 1,420 9.292 13,194.640 DXE Europe 09/03/2026 09:24:10 2,170 9.292 20,163.640 DXE Europe 09/03/2026 09:24:10 1,948 9.292 18,100.816 DXE Europe 09/03/2026 09:24:29 381 9.287 3,538.347 Euronext Milan 09/03/2026 09:24:39 8,932 9.290 82,978.280 Euronext Milan 09/03/2026 09:24:39 10,420 9.290 96,801.800 Euronext Milan 09/03/2026 09:24:40 1,675 9.289 15,559.075 Aquis Exchange Europe 09/03/2026 09:24:40 591 9.289 5,489.799 Turquoise Europe 09/03/2026 09:24:40 809 9.289 7,514.801 Turquoise Europe 09/03/2026 09:24:40 838 9.287 7,782.506 Aquis Exchange Europe 09/03/2026 09:24:40 7,443 9.287 69,123.141 Euronext Milan 09/03/2026 09:24:40 1,256 9.287 11,664.472 Aquis Exchange Europe 09/03/2026 09:24:40 2,052 9.286 19,054.872 Euronext Milan 09/03/2026 09:25:18 9,915 9.295 92,159.925 Euronext Milan 09/03/2026 09:25:25 7,443 9.291 69,152.913 DXE Europe 09/03/2026 09:25:25 9,695 9.292 90,085.940 Euronext Milan 09/03/2026 09:25:25 1,397 9.289 12,976.733 Turquoise Europe 09/03/2026 09:25:25 6,493 9.290 60,319.970 Euronext Milan

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