X0508 4 2026-02-20 0000072741 EVERSOURCE ENERGY ES 0001547987 Kim John Y C/O EVERSOURCE ENERGY 300 CADWELL DRIVE SPRINGFIELD MA 01104 1 Trustee 0 Common Shares, $5.00 par value 23322 D Common Shares, $5.00 par value 2026-02-20 4 S 0 6000 73.555 D 6339 I By Caroline M. Kim Trust Common Shares, $5.00 par value 2026-02-23 4 S 0 6339 74.49 D 0 I By Caroline M. Kim Trust Includes restricted share units and dividend equivalents thereon. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.245 to $73.96, inclusive. The reporting person undertakes to provide Eversource Energy, any security holder of Eversource Energy, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold within the range set forth above. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.075 to $74.95, inclusive. The reporting person undertakes to provide Eversource Energy, any security holder of Eversource Energy, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold within the range set forth above. /s/ Kerry J. Tomasevich, attorney-in-fact for Mr. Kim 2026-02-24