Unitil Corp (UTL) Institutional Ownership

Ownership Summary

Unitil Corp (NYSE:UTL) currently has 201 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• The percentage of Unitil owned by institutions changed from 89.8% in September 2025 to 82.6% in December 2025, marking a slight down trend.
• In percentage terms, this reflects as a holdings change of 3.40% quarter on quarter, and a decrease of 1.95% year over year.
• The latest 13F cycle for Unitil reveals that of 201 total investors, 104 funds grew their exposure, whereas 66 reduced theirs and 31 made no changes.
• The total number of shares held by institutions in Unitil increased to 14.53Mn as of December 2025, a net change of up by 477.50K shares quarter on quarter, and up 1.71Mn shares year over year.
• As of December 31, 2025, BlackRock, Inc. held Unitil's largest shareholding position with over 3.26Mn shares, representing 18.55% of total outstanding shares.
• Among the most significant buyers of Unitil during December 2025 were WELLINGTON MANAGEMENT GROUP LLP (291.32K), BlackRock, Inc. (180.49K), FMR LLC (167.80K), FRONTIER CAPITAL MANAGEMENT CO LLC (97.68K), MORGAN STANLEY (82.27K).
• Leading sellers of Unitil stock in December 2025 included MANUFACTURERS LIFE INSURANCE COMPANY, THE (184.73K), Qube Research & Technologies Ltd (97.29K), RENAISSANCE TECHNOLOGIES LLC (87.10K), Bank of New York Mellon Corp (85.07K), TUDOR INVESTMENT CORP ET AL (83.52K).
• The top 10 institutional holders of Unitil for the quarter ending December 2025 included BlackRock, Inc. (3.26Mn), VANGUARD GROUP INC (1.54Mn), STATE STREET CORP (721.28K), WELLINGTON MANAGEMENT GROUP LLP (601.26K), FRONTIER CAPITAL MANAGEMENT CO LLC (561.17K), JPMORGAN CHASE & CO (557.82K), MANUFACTURERS LIFE INSURANCE COMPANY, THE (526.56K), GEODE CAPITAL MANAGEMENT, LLC (424.16K), RENAISSANCE TECHNOLOGIES LLC (396.94K), Boston Trust Walden Corp (385.23K).