Unitil Corporation (UTL) Ownership
UTL ownership summary
as of October 18, 2026- Institutions
- 86.8% of shares outstanding
- Insiders
- 2.20% of shares outstanding
- Shares outstanding
- 18.2M
- Float
- 17.8M shares available to trade
- Short interest
- 5.03% 749K shares short
- Days to cover
- 5.18 short interest up 7.3% vs prior month
- Institutions 86.76%
- Insiders 2.20%
- Other investors 11.04%
UTL top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 15.86% | 2.9M | $156.4M | +59,635 (+2.1%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 4.41% | 803K | $43.4M | −6,675 (−0.8%) | June 30, 2026 |
| 3 | State Street Corp | 4.29% | 782K | $42.3M | +47,268 (+6.4%) | June 30, 2026 |
| 4 | Frontier Capital Management CO Inc | 3.03% | 553K | $29.9M | +4,540 (+0.8%) | June 30, 2026 |
| 5 | Manufacturers Life Insurance Co | 2.80% | 510K | $27.6M | −1,178 (−0.2%) | June 30, 2026 |
| 6 | Vanguard Portfolio Management, LLC | 2.78% | 507K | $27.4M | −789 (−0.2%) | June 30, 2026 |
| 7 | Wellington Management Company LLP | 2.69% | 491K | $26.6M | −110,629 (−18.4%) | June 30, 2026 |
| 8 | JPMorgan Chase & Co | 2.61% | 476K | $25.7M | −10,140 (−2.1%) | June 30, 2026 |
| 9 | Geode Capital Management, LLC | 2.56% | 467K | $25.3M | +34,459 (+8.0%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 2.26% | 412K | $22.3M | +114,684 (+38.6%) | June 30, 2026 |
| 11 | Renaissance Technologies Corp | 2.23% | 408K | $22.0M | −82,501 (−16.8%) | June 30, 2026 |
| 12 | Two Sigma Investments LLC | 1.87% | 342K | $18.5M | +69,675 (+25.6%) | June 30, 2026 |
| 13 | Dimensional Fund Advisors, Inc. | 1.87% | 341K | $18.4M | +711 (+0.2%) | June 30, 2026 |
| 14 | BTIM Corp | 1.77% | 323K | $17.5M | −17,279 (−5.1%) | June 30, 2026 |
| 15 | Charles Schwab Investment Management Inc | 1.41% | 257K | $13.9M | +575 (+0.2%) | June 30, 2026 |
| 16 | Northern Trust Corp | 1.36% | 249K | $13.5M | +13,153 (+5.6%) | June 30, 2026 |
| 17 | Aristotle Capital Boston, LLC | 1.36% | 248K | $13.4M | −12,902 (−5.0%) | June 30, 2026 |
| 18 | Bragg Financial Advisors Inc | 1.34% | 244K | $13.2M | +243,573 (0.0%) | June 30, 2026 |
| 19 | Heartland Advisors Inc | 1.27% | 232K | $12.6M | +82,349 (+54.9%) | June 30, 2026 |
| 20 | Reaves W H & Co Inc | 1.13% | 207K | $11.2M | −41,357 (−16.7%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 671K shares and 9 cut 283K.
UTL top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.95% | 1.1M | $58.7M | +279 (+0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.19% | 581K | $31.4M | −3,241 (−0.6%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.49% | 454K | $24.6M | −5,248 (−1.1%) | September 30, 2026 |
| 4 | JHancock Small Cap Core NAV | 2.27% | 413K | $22.3M | — | August 31, 2026 |
| 5 | FPA Queens Road Small Cap Value Inv | 1.46% | 267K | $14.4M | +26,600 (+11.1%) | September 30, 2026 |
| 6 | Vanguard Explorer Value Inv | 1.30% | 236K | $12.8M | +47,694 (+25.3%) | June 30, 2026 |
| 7 | Heartland Value Investor | 1.27% | 232K | $12.6M | — | September 30, 2026 |
| 8 | Reaves Utility Income | 1.13% | 207K | $11.2M | −41,357 (−16.7%) | June 30, 2026 |
| 9 | Fidelity Small Cap Index | 1.08% | 198K | $10.7M | +1,980 (+1.0%) | July 31, 2026 |
| 10 | ProShares S&P SmCp 600 Div ArstocrtsETF | 0.98% | 178K | $9.6M | −585 (−0.3%) | September 30, 2026 |
| 11 | State Street SPDR Port S&P 600 Sm CpETF | 0.91% | 166K | $9.0M | — | September 30, 2026 |
| 12 | iShares Russell 2000 Value ETF | 0.90% | 164K | $8.9M | +250 (+0.2%) | September 30, 2026 |
| 13 | iShares S&P Small-Cap 600 Value ETF | 0.85% | 154K | $8.3M | — | September 30, 2026 |
| 14 | JPMorgan Small Cap Blend A | 0.76% | 139K | $7.5M | +3,479 (+2.6%) | August 31, 2026 |
| 15 | Vanguard Utilities ETF | 0.68% | 124K | $6.7M | −423 (−0.3%) | September 30, 2026 |
| 16 | Vanguard Tax-Managed Small Cap Adm | 0.67% | 123K | $6.6M | — | September 30, 2026 |
| 17 | Boston Trust Walden Small Cap | 0.61% | 111K | $6.0M | −2,050 (−1.8%) | August 31, 2026 |
| 18 | Vanguard Russell 2000 ETF | 0.58% | 105K | $5.7M | +1,111 (+1.1%) | September 30, 2026 |
| 19 | Schwab US Small-Cap ETF™ | 0.53% | 97K | $5.3M | +63 (+0.1%) | September 30, 2026 |
| 20 | Hartford Small Cap Value Y | 0.53% | 96K | $5.2M | +6,371 (+7.1%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
UTL insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2021-03-23 | Todd R Black | Sell | $46.16 | 6,309 | $291,223 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
UTL shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns UTL
Institutional investors own 86.8% of Unitil's shares and insiders 2.20%. The largest holder is BlackRock Inc with 15.86% of the shares (2.9M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 9 reduced their stake in the latest filings. Short interest is 5.03% of the float, or 5.18 days of average trading volume. The share count rose 26.6% since 2014.
Related: UTL analyst forecast, UTL key metrics, UTL dividend history. See the UTL stock overview for the latest quote and news.
UTL ownership FAQ
Who owns the most Unitil stock?
The largest shareholders of Unitil are BlackRock Inc (15.86%), Vanguard Capital Management, LLC (4.41%), State Street Corp (4.29%), Frontier Capital Management CO Inc (3.03%), Manufacturers Life Insurance Co (2.80%).
What percentage of Unitil is owned by institutions?
Institutions hold 86.8% of Unitil's shares outstanding; insiders hold 2.20%.
Which funds own Unitil?
The largest fund holders of Unitil are iShares Core S&P Small-Cap ETF (5.95%), Vanguard MStar Total Stk Mkt Idx Invest (3.19%), iShares Russell 2000 ETF (2.49%), JHancock Small Cap Core NAV (2.27%), FPA Queens Road Small Cap Value Inv (1.46%).
What is Unitil's short interest?
749K shares of Unitil were sold short, 5.03% of the float; at the average daily volume it would take 5.18 days to cover.
Are insiders buying or selling Unitil?
Of the latest 1 reported insider transactions in Unitil (since March 23, 2021), 0 were purchases and 1 were sales.
How many shares of Unitil are outstanding?
Unitil has 18.2M shares outstanding, of which 17.8M are in the public float.