Comparable stake leader
BlackRock, Inc.
SEC ownership of UNITIL CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000755001.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- UTL on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000755001
- Issuer location
- Hampton, NH
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of UNITIL CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
Thomas P. Meissner Jr.
0.83%
Mark H. Collin
0.33%
Robert B. Hevert
0.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
15%
from 13D/G
|
$148,023,884
2,833,535 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$49,398,980
945,616 shares
|
$0 | 31 Mar 2026 |
| Thomas P. Meissner Jr. |
3/4/5
Chairmain & CEO, Director
|
0.83%
|
$7,432,624
148,738 shares
|
— | 27 Jan 2026 |
| Mark H. Collin |
3/4/5
Director
|
0.33%
|
$2,778,290
58,837 shares
|
— | 01 Oct 2025 |
| Robert B. Hevert |
3/4/5
Pres. & Chief Admin Officer
|
0.2%
|
$1,773,267
35,465 shares
|
— | 27 Jan 2026 |
| Christopher J. LeBlanc |
3/4/5
Vice President
|
0.12%
|
$1,118,608
22,372 shares
|
— | 27 Jan 2026 |
| Daniel J. Hurstak |
3/4/5
SVP, CFO & Treasurer
|
0.11%
|
$1,004,468
20,089 shares
|
— | 27 Jan 2026 |
| Justin Eisfeller |
3/4/5
CTO
|
0.11%
|
$984,069
19,723 shares
|
— | 27 Jan 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 19 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 22 reporting-owner rows connected to UNITIL CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
22
Largest Forms 3/4/5 holder
Thomas P. Meissner Jr.
Net 12M change
$0
Latest report
27 Jan 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Thomas P. Meissner Jr. | Chairmain & CEO, Director | $7,432,624 | Mixed | 27 Jan 2026 | ||
| Mark H. Collin | Director | $2,778,290 | Mixed | 01 Oct 2025 | ||
| Robert B. Hevert | Pres. & Chief Admin Officer | $1,773,267 | Mixed | 27 Jan 2026 | ||
| Eben S. Moulton | Director | $1,602,929 | Mixed | 02 Oct 2023 | ||
| Edward F. Godfrey | Director | $1,352,671 | Mixed | 01 Oct 2024 | ||
| Michael B. Green | Director | $1,274,734 | Mixed | 01 Oct 2025 | ||
| Todd R. Black | Senior Vice President | $1,129,492 | Mixed | 24 Jan 2023 | ||
| Christopher J. LeBlanc | Vice President | $1,118,608 | Mixed | 27 Jan 2026 | ||
| David A. Whiteley | Director | $1,076,043 | Mixed | 01 Oct 2025 | ||
| Daniel J. Hurstak | SVP, CFO & Treasurer | $1,004,468 | Mixed | 27 Jan 2026 | ||
| Justin Eisfeller | Cto | $984,069 | Mixed | 27 Jan 2026 | ||
| Justine Vogel | Director | $572,967 | Mixed | 01 Oct 2025 | ||
| Suzanne Foster | Director | $572,967 | Mixed | 01 Oct 2025 | ||
| Winfield S. Brown | Director | $564,307 | Mixed | 01 Oct 2025 | ||
| Lisa Crutchfield | Director | $534,968 | Mixed | 01 Oct 2021 | ||
| Todd R. Diggins | CAO & Controller | $413,129 | Mixed | 27 Jan 2026 | ||
| Neveen F. Awad | Director | $306,881 | Mixed | 01 Oct 2025 | ||
| Anne L. Alonzo | Director | $251,121 | Mixed | 01 Oct 2025 | ||
| Carleton B. Simpson | SVP, Gen. Counsel & Secretary | $247,044 | Mixed | 27 Jan 2026 | ||
| Sandra L. Whitney | Corporate Secretary | $246,589 | Mixed | 28 Jan 2025 |
Recent insider transactions for UNITIL CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Carleton B. Simpson | UTL | Common stock, no par value | Award | 165.6% | 3,180 | 5,100 | 27 Jan 2026 | Direct | ||
| Carleton B. Simpson | UTL | Contingent grant of common stock | Award | 165.6% | 795 | 1,275 | 27 Jan 2026 | Direct | ||
| Todd R. Diggins | UTL | Common stock, no par value | Award | 35.6% | 2,170 | 8,263 | 27 Jan 2026 | Direct | ||
| Todd R. Diggins | UTL | Contingent grant of common stock | Award | 55.1% | 540 | 1,520 | 27 Jan 2026 | Direct | ||
| Justin Eisfeller | UTL | Common stock, no par value | Award | 13.6% | 2,200 | 18,394 | 27 Jan 2026 | Direct | ||
| Justin Eisfeller | UTL | Contingent grant of common stock | Award | 55.1% | 540 | 1,520 | 27 Jan 2026 | Direct | ||
| Robert B. Hevert | UTL | Common stock, no par value | Award | 27.1% | 7,570 | 35,465 | 27 Jan 2026 | Direct | ||
| Robert B. Hevert | UTL | Contingent grant of common stock | Award | 57.5% | 1,870 | 5,120 | 27 Jan 2026 | Direct | ||
| Daniel J. Hurstak | UTL | Common stock, no par value | Award | 32.3% | 4,900 | 20,089 | 27 Jan 2026 | Direct | ||
| Daniel J. Hurstak | UTL | Contingent grant of common stock | Award | 57.4% | 1,215 | 3,330 | 27 Jan 2026 | Direct | ||
| Christopher J. LeBlanc | UTL | Common stock, no par value | Award | 10.9% | 2,200 | 22,372 | 27 Jan 2026 | Direct | ||
| Christopher J. LeBlanc | UTL | Contingent grant of common stock | Award | 55.1% | 540 | 1,520 | 27 Jan 2026 | Direct | ||
| Thomas P. Meissner Jr. | UTL | Common stock, no par value | Award | 12.7% | 16,490 | 145,995 | 27 Jan 2026 | Direct | ||
| Thomas P. Meissner Jr. | UTL | Contingent grant of common stock | Award | 57% | 4,045 | 11,140 | 27 Jan 2026 | Direct | ||
| David A. Whiteley | UTL | Common stock, no par value | Award | 28.3% | 2,435 | 11,033 | 01 Oct 2025 | Direct | ||
| Justine Vogel | UTL | Common stock, no par value | Award | 25.1% | 2,435 | 12,134 | 01 Oct 2025 | Direct | ||
| Jane Lewis-Raymond | UTL | Restricted stock units | Award | 2,435 | 2,435 | 01 Oct 2025 | Direct | |||
| Katherine Kountze | UTL | Common stock, no par value | Award | 1,624 | 1,624 | 01 Oct 2025 | Direct | |||
| Michael B. Green | UTL | Restricted stock units | Award | 12.9% | 2,435 | 21,357 | 01 Oct 2025 | Direct | ||
| Suzanne Foster | UTL | Common stock, no par value | Award | 25.1% | 2,435 | 12,134 | 01 Oct 2025 | Direct | ||
| Mark H. Collin | UTL | Common stock, no par value | Award | 4.32% | 2,435 | 58,837 | 01 Oct 2025 | Direct | ||
| Winfield S. Brown | UTL | Common stock, no par value | Award | 46% | 2,435 | 7,723 | 01 Oct 2025 | Direct | ||
| Neveen F. Awad | UTL | Restricted stock units | Award | 2,435 | 2,435 | 01 Oct 2025 | Direct | |||
| Anne L. Alonzo | UTL | Restricted stock units | Award | 153.9% | 2,435 | 4,017 | 01 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.