Mark H. Collin - 01 Oct 2025 Form 4 Insider Report for UNITIL CORP (UTL)

Reporting relationship: Director
Issuer ticker: UTL
Reported as of: 01 Oct 2025
Net transaction value: +$114,981
SEC form: 4
Accepted by SEC: 03 Oct 2025, 11:40:11 UTC
Prior SEC filing: 03 Oct 2024
Source filing: View source filing
Reporting owner signature: /s/ Sandra L. Whitney, attorney-in-fact for Mark H. Collin

Key filing fact

Mark H. Collin filed Form 4 for UNITIL CORP (UTL) on 03 Oct 2025.

Key facts

This page summarizes Mark H. Collin's Form 4 filing for UNITIL CORP (UTL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 03 Oct 2025, 11:40.

Change

Previous filing in this sequence was filed on 03 Oct 2024.
Current net transaction value: +$114,981.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001240995 Primary reporting owner

COLLIN MARK H

Relationship: Director
Address: 6 LIBERTY LANE WEST, HAMPTON
Signature: /s/ Sandra L. Whitney, attorney-in-fact for Mark H. Collin
Signature date: 03 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

UTL transaction

Common stock, no par value

Award

Transaction value: $114,981
Shares: +2,435
Change %: +4.3%
Price: $47.22
Shares after: 58,837
Date: 01 Oct 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote 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.