ARTESIAN RESOURCES CORP

Insider Adoption or Termination of Trading Arrangements:

During the fiscal quarter ended December 31, 2025, none of our directors or officers informed us of theadoption ortermination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408.

On March 13, 2026, Artesian Water Maryland and CoBank entered into a Master Loan Agreement, or the MLA, and supplement to the MLA, in which CoBank will make a single loan to Artesian Water Maryland in a principal amount not to exceed $10 million, as further discussed in Note 18 – Subsequent Events. Artesian Water Maryland agrees to pay interest on the unpaid principal balance of the loans at 6.14% per annum. Interest shall be calculated and paid quarterly in arrears on the thirtieth (30th) day of each of March, June, September and December. Artesian Water Maryland agrees to repay the loan in eighty consecutive quarterly installments, each due on the thirtieth (30th) day of each March, June, September, and December, with the first installment due on June 30, 2026, and the last installment due on March 13, 2046. The amount of each installment shall be the same principal amount that would be required to be repaid if the loan was scheduled to be repaid in level installments of principal and interest and such schedule was calculated utilizing 6.14% as the rate accruing on the loan; provided, however, that the last installment of the loan shall be in an amount equal to the then unpaid principal balance of the loan. Closing on the debt financing was approved by the Maryland Public Service Commission on March 2, 2026. The foregoing summary is qualified in its entirety by reference to the text of the MLA and the Supplement and the Guarantee of Payment, copies of which are filed as Exhibit 4.26 and Exhibit 4.27, respectively, hereto and are incorporated by reference.