X0306 4 2023-01-24 0 0000755001 UNITIL CORP UTL 0001768487 LeBlanc Christopher J 6 LIBERTY LANE WEST HAMPTON NH 03842 0 1 0 0 Vice President Common stock, no par value 2023-01-24 4 A 0 970 0.00 A 0 D Common stock, no par value 2023-01-24 4 A 0 970 0.00 A 15776.01 D Contingent grant of common stock 2023-01-24 4 A 0 485 A Common stock 485 485 D Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting. Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting. Includes 28.230 shares of common stock acquired on February 25, 2022, 24.429 shares of common stock acquired on May 27, 2022, 24.830 shares of common stock acquired on August 26, 2022 and 26.073 shares of common stock acquired on November 28, 2022, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan. Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant. /s/ Christopher LeBlanc 2023-01-26