UNITIL CORP UTL
CIK 0000755001 · CUSIP 913259107
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $164.56M 3,036,684 shares | 0.00% | +124.97K(+4.3%)Added | SEC filing ↗ Feb 7, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $69.53M 1,283,145 shares | 0.00% | -10.86K(-0.8%)Reduced | SEC filing ↗ Feb 11, 2025 | ▾ |
| 03 | STATE STREET CORP CIK 93751 · View history | $41.96M 774,390 shares | 0.00% | +50.80K(+7.0%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 04 | JPMORGAN CHASE & CO CIK 19617 · View history | $32.15M 593,192 shares | 0.00% | -24.00K(-3.9%)Reduced | SEC filing ↗ Feb 12, 2025 | ▾ |
| 05 | MANUFACTURERS LIFE INSURANCE COMPANY, THE CIK 928047 · View history | $30.40M 560,944 shares | 0.03% | +49.13K(+9.6%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 06 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $23.62M 435,840 shares | 0.03% | -16.80K(-3.7%)Reduced | SEC filing ↗ Feb 13, 2025 | ▾ |
| 07 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $23.14M 426,985 shares | 0.01% | -11.04K(-2.5%)Reduced | SEC filing ↗ Feb 13, 2025 | ▾ |
| 08 | Boston Trust Walden Corp CIK 1534866 · View history | $21.00M 387,445 shares | 0.15% | -6.16K(-1.6%)Reduced | SEC filing ↗ Jan 24, 2025 | ▾ |
| 09 | Aristotle Capital Boston, LLC CIK 1633911 · View history | $20.83M 384,394 shares | 0.77% | -67.13K(-14.9%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $20.75M 382,883 shares | 0.00% | +1.23K(+0.3%)Added | SEC filing ↗ Feb 12, 2025 | ▾ |
| 11 | FRONTIER CAPITAL MANAGEMENT CO LLC CIK 351173 · View history | $14.20M 262,033 shares | 0.13% | -2.06K(-0.8%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 12 | MORGAN STANLEY CIK 895421 · Amended · View history | $11.94M 220,376 shares | 0.00% | +1.09K(+0.5%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 13 | Bank of New York Mellon Corp CIK 1390777 · View history | $11.03M 203,475 shares | 0.00% | +2.13K(+1.1%)Added | SEC filing ↗ Feb 4, 2025 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $10.08M 186,079 shares | 0.00% | +19.63K(+11.8%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 15 | ROYAL BANK OF CANADA CIK 1000275 · View history | $9.53M 175,805 shares | 0.00% | +8.54K(+5.1%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $9.33M 172,212 shares | 0.00% | -17.12K(-9.0%)Reduced | SEC filing ↗ Feb 6, 2025 | ▾ |
| 17 | ProShare Advisors LLC CIK 1357955 · View history | $7.54M 139,116 shares | 0.02% | -109.07K(-43.9%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 18 | Nuveen Asset Management, LLC CIK 1521019 · View history | $7.04M 129,864 shares | 0.00% | +144(+0.1%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 19 | Invesco Ltd. CIK 914208 · View history | $6.36M 117,280 shares | 0.00% | +6.33K(+5.7%)Added | SEC filing ↗ Feb 13, 2025 | ▾ |
| 20 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history | $6.20M 114,380 shares | 0.02% | +18.20K(+18.9%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
Showing 20 / 207 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 207 reporting institutions.
This page includes 20 of 207 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 207 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"913259107","quarter":"2024Q4","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.