---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-264824"
form_type: "8-K"
ticker: "UTL"
cik: "0000755001"
company_name: "UNITIL CORP"
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:46:15.124580+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Unitil appoints Carleton B. Simpson as Senior VP and General Counsel

## Summary
- Carleton B. Simpson, 35, appointed SVP and General Counsel effective Oct 29, 2025.
- Previously served as VP of Energy Transformation at Unitil subsidiary Fitchburg Gas and Electric since Dec 2024.
- Simpson was a Commissioner of the New Hampshire Public Utilities Commission from Dec 2021 to Aug 2024.
- Also served on the board of the Northeast Power Coordinating Council during his PUC tenure.
- Holds BS in Electrical Engineering (UNH), MS in Electrical & Computer Engineering (WPI), and JD from Suffolk Law.

## SEC filing metadata
- accession: 0001193125-25-264824
- form_type: 8-K
- ticker: UTL
- cik: 0000755001
- company_name: UNITIL CORP
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/755001/000119312525264824/0001193125-25-264824-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/755001/000119312525264824/d58414d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-264824
- JSON: https://secwatch.observer/filing/0001193125-25-264824.json
- Plain text: https://secwatch.observer/filing/0001193125-25-264824.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.