Unitil Corp
UTL- Exchange
- NYSE
- Industry
- Electric & Other Services Combined
- SEC CIK
- 0000755001
No open-market purchases or sales by Unitil Corp insiders were filed in the last 90 days; 245 institutions reported holding it in 13F filings for Q2 2026, worth $808.9M in total; no superinvestor holds it.
Holders of 5% or more of UTL
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Unitil Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 17.10%2.78M shares | – | Apr 24, 20251 filing | Apr 24, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on Unitil Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 27, 20261:55 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Apr 24, 20259:52 AM ET | BlackRock, Inc. | 13G/A | 17.10%2.78M shares | – | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Unitil Corp shares.
No Form 144 notices for Unitil Corp are on file.