Unitil Corporation
Unitil Corporation (UTL) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · UTL · as of Sep 30, 2025
Ownership Breakdown
217
Institutional Holders
▼ 3 vs Q2
$696.57M
Total Inst. Value
▲ $12.71M vs Q2
17.99M
Shares Outstanding
freeFloat 97.77%
14.55M
13F Shares Held
▲ 1.44M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
UTL largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. electric & other services combined | 3.08M | 19.03% | 19.03% | $147.58B | Nov 12, 2025 | ▲ 179.4K |
VANGUARD GROUP INC electric & other services combined | 1.47M | 9.08% | 9.08% | $70.41B | Nov 7, 2025 | ▲ 68.8K |
MANUFACTURERS LIFE INSURANCE COMPANY, THE electric & other services combined | 711.3K | 4.39% | 4.39% | $34.04B | Nov 14, 2025 | ▼ 6.1K |
STATE STREET CORP electric & other services combined | 690.1K | 4.26% | 4.26% | $33.03B | Nov 14, 2025 | ▼ 95.8K |
JPMORGAN CHASE & CO electric & other services combined | 608.1K | 3.75% | 3.75% | $29.10B | Nov 26, 2025 | ▲ 14.9K |
RENAISSANCE TECHNOLOGIES LLC electric & other services combined | 484.0K | 2.99% | 2.99% | $23.17B | Nov 13, 2025 | ▲ 49.6K |
FRONTIER CAPITAL MANAGEMENT CO LLC electric & other services combined | 463.5K | 2.86% | 2.86% | $22.18B | Nov 14, 2025 | ▲ 102.6K |
BOSTON TRUST WALDEN CORP electric & other services combined | 413.6K | 2.55% | 2.55% | $19.80B | Oct 17, 2025 | ▲ 39.5K |
GEODE CAPITAL MANAGEMENT, LLC electric & other services combined | 399.7K | 2.47% | 2.47% | $19.13B | Nov 12, 2025 | ▲ 14.0K |
DIMENSIONAL FUND ADVISORS LP electric & other services combined | 369.5K | 2.28% | 2.28% | $17.68B | Nov 12, 2025 | ▼ 8.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
35
Increased
+1.22M shares4
New Positions
first time holders10
Decreased
−263.3K shares0
Sold Out
fully exitedNet shares change (top 50)
+954.1K
+1.22M / −263.3K
Net new holders
+29
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
UTL insider trading · insider activity
Source: SEC Form 4
21
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Simpson Carleton B SVP, Gen. Counsel & Secretary | Jan 27, 2026 | Award | 1,590 | — | — | 5.1K | Form 4 ↗ |
Simpson Carleton B SVP, Gen. Counsel & Secretary | Jan 27, 2026 | Award | 795 | — | — | 1.3K | Form 4 ↗ |
Simpson Carleton B SVP, Gen. Counsel & Secretary | Jan 27, 2026 | Award | 1,590 | — | — | 0 | Form 4 ↗ |
Hurstak Daniel J SVP, CFO & Treasurer | Jan 27, 2026 | Award | 40 | $50.00 | $2.0K | 20.1K | Form 4 ↗ |
Hurstak Daniel J SVP, CFO & Treasurer | Jan 27, 2026 | Award | 1,215 | — | — | 3.3K | Form 4 ↗ |
Hurstak Daniel J SVP, CFO & Treasurer | Jan 27, 2026 | Award | 2,430 | — | — | 0 | Form 4 ↗ |
Diggins Todd R CAO & Controller | Jan 27, 2026 | Award | 10 | $50.00 | $500 | 8.3K | Form 4 ↗ |
Diggins Todd R CAO & Controller | Jan 27, 2026 | Award | 540 | — | — | 1.5K | Form 4 ↗ |
Diggins Todd R CAO & Controller | Jan 27, 2026 | Award | 1,080 | — | — | 0 | Form 4 ↗ |
LeBlanc Christopher J Vice President | Jan 27, 2026 | Award | 40 | $50.00 | $2.0K | 22.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Unitil Corporation (UTL) is primarily owned by institutional investors, who hold approximately 80.9% of total shares outstanding. Company insiders own approximately 2.23%, while retail and public investors account for the remaining 16.86%.
The largest institutional shareholder of Unitil Corporation is BLACKROCK, INC., holding approximately 3.08 million shares — equal to 19.03% of outstanding shares — as of September 30, 2025.
A total of 217 institutional investors currently hold UTL stock, with a combined institutional value of approximately $696,566,332 as of the most recent 13F filing period.
Frequently asked questions
UTL ownershipUnitil Corporation (UTL) is primarily owned by institutional investors, who hold approximately 80.9% of shares. The largest shareholder is BLACKROCK, INC. with a 19.03% stake. Company insiders hold 2.23%. Data sourced from SEC Form 13F as of September 30, 2025.