UNITIL CORP — Director's Dealing 2025

Oct 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNITIL CORP (UTL)
CIK: 0000755001
Period of Report: 2025-10-01

Reporting Person: WHITELEY DAVID A (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-01	Common stock, no par value	A	2435	$47.22	Acquired	11033	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted stock units	$		Common stock (0)	9248	Direct

Footnotes

F1: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

F2: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.