Latest Period
Q1 2026
Security Snapshot
UNITIL CORP - Common Stock (UTL) Institutional Ownership
CUSIP: 913259107
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
238
Shares (Excl. Options)
14,705,139
Price
$52.24
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- Security type / class
- Equity / Common Stock
- Symbol
- UTL on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 14,705,139
- Total 13F value
- $768,592,751
- Portfolio coverage rank
- 0%
- Share change
- +29,662
- Value change
- +$2,889,062
- Number of holders
- 238
- Underlying class
- Common stock
- Shares outstanding
- 18,011,733
- SEC-reported price per share
- $50.78
- Insider filing price
- $50.78
Latest holder snapshot
5 signals
Security identity
1 source field
Issuer context
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- UTL - UNITIL CORP - Common Stock is tracked under CUSIP 913259107.
- 238 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 217 to 238 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $715,527,238 to $768,592,751.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 238 institutions filings for Q1 2026.
Security key
913259107
Latest holder period
Q1 2026
13F holders
238
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
UTL full holder history
UNITIL CORP SEC filings
UNITIL CORP company facts
UNITIL CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 913259107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
UTL
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | -13% | $140,339,364 | -$5,011,174 | 2,686,435 | -3.4% | BlackRock, Inc. | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.2% | $49,398,980 | 945,616 | Vanguard Capital Management | 31 Mar 2026 |
As of 31 Mar 2026, 238 institutional investors reported holding 14,705,139 shares of UNITIL CORP - Common Stock (UTL). This represents 82% of the company’s total 18,011,733 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
62%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 2,833,535 | -13% | 0% | $148,023,884 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 810,144 | 0% | 0% | $42,321,923 |
| STATE STREET CORP | 4.1% | 734,927 | +1.9% | 0% | $38,392,586 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.3% | 602,103 | +0.14% | 0.01% | $31,453,860 |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 3% | 548,780 | -2.2% | 0.29% | $28,668,267 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 2.8% | 511,033 | -2.9% | 0.02% | $26,696,364 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8% | 507,782 | 0% | 0% | $26,526,532 |
| RENAISSANCE TECHNOLOGIES LLC | 2.7% | 490,041 | +23% | 0.04% | $25,599,742 |
| JPMORGAN CHASE & CO | 2.7% | 486,080 | -13% | 0% | $25,830,291 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 432,658 | +2% | 0% | $22,604,539 |
| DIMENSIONAL FUND ADVISORS LP | 1.9% | 340,505 | -2.4% | 0% | $17,788,857 |
| Boston Trust Walden Corp | 1.9% | 340,191 | -12% | 0.15% | $17,771,578 |
| MORGAN STANLEY | 1.7% | 297,245 | +11% | 0% | $15,528,141 |
| TWO SIGMA INVESTMENTS, LP | 1.5% | 271,989 | +110% | 0.01% | $14,208,705 |
| Aristotle Capital Boston, LLC | 1.4% | 260,523 | -5% | 0.85% | $13,609,722 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4% | 256,317 | -4.4% | 0% | $13,390,000 |
| REAVES W H & CO INC | 1.4% | 248,275 | -9.7% | 0.22% | $12,969,886 |
| NORTHERN TRUST CORP | 1.3% | 235,608 | +5.4% | 0% | $12,308,162 |
| GOLDMAN SACHS GROUP INC | 1.1% | 206,487 | +40% | 0% | $10,786,881 |
| HEARTLAND ADVISORS INC | 0.83% | 150,000 | 0.4% | $7,836,000 | |
| Nuveen, LLC | 0.76% | 137,269 | +24% | 0% | $7,170,932 |
| CSM Advisors, LLC | 0.75% | 134,545 | +0.22% | 0.17% | $7,030,000 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 0.7% | 125,319 | -4.4% | 0.02% | $6,546,665 |
| ProShare Advisors LLC | 0.67% | 121,166 | -6% | 0.01% | $6,329,711 |
| CITADEL ADVISORS LLC | 0.67% | 120,967 | +186% | 0% | $6,319,316 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 14,705,139 | $768,592,751 | +$2,889,062 | $52.24 | 238 |
| 2025 Q4 | 14,769,937 | $715,527,238 | +$10,299,571 | $48.44 | 217 |
| 2025 Q3 | 14,554,787 | $696,549,014 | +$68,230,145 | $47.86 | 214 |
| 2025 Q2 | 13,109,140 | $683,638,219 | +$24,424,099 | $52.15 | 218 |
| 2025 Q1 | 12,726,304 | $734,199,754 | -$4,787,030 | $57.69 | 223 |
| 2024 Q4 | 12,809,033 | $694,188,552 | -$2,168,718 | $54.19 | 204 |
| 2024 Q3 | 12,757,245 | $772,514,076 | +$24,773,449 | $60.58 | 211 |
| 2024 Q2 | 12,349,623 | $639,585,390 | +$5,825,303 | $51.79 | 200 |
| 2024 Q1 | 12,257,295 | $641,597,853 | -$3,582,184 | $52.35 | 187 |
| 2023 Q4 | 12,396,481 | $651,652,278 | +$18,937,747 | $52.57 | 180 |
| 2023 Q3 | 12,058,473 | $515,074,635 | -$4,079,544 | $42.71 | 170 |
| 2023 Q2 | 12,125,034 | $615,038,443 | +$14,501,569 | $50.71 | 179 |
| 2023 Q1 | 11,833,261 | $675,052,144 | +$11,055,258 | $57.04 | 190 |
| 2022 Q4 | 11,939,130 | $613,221,375 | -$3,489,018 | $51.36 | 178 |
| 2022 Q3 | 12,025,906 | $558,748,869 | -$17,728,499 | $46.45 | 172 |
| 2022 Q2 | 12,296,892 | $722,017,530 | +$39,923,898 | $58.72 | 173 |
| 2022 Q1 | 11,799,331 | $589,108,904 | +$11,119,343 | $49.88 | 171 |
| 2021 Q4 | 11,582,938 | $532,514,452 | -$9,599,610 | $45.99 | 160 |
| 2021 Q3 | 11,745,189 | $503,157,166 | +$17,896,653 | $42.78 | 152 |
| 2021 Q2 | 11,350,693 | $601,642,311 | +$48,198,879 | $52.97 | 148 |
| 2021 Q1 | 10,427,856 | $477,045,896 | -$4,609,127 | $45.69 | 132 |
| 2020 Q4 | 10,459,960 | $463,206,244 | +$3,707,394 | $44.27 | 133 |
| 2020 Q3 | 10,422,192 | $402,797,141 | -$3,736,958 | $38.64 | 141 |
| 2020 Q2 | 10,403,441 | $466,485,502 | +$6,259,637 | $44.82 | 146 |
| 2020 Q1 | 10,503,146 | $549,359,816 | +$9,746,193 | $52.32 | 154 |