SEC Filings All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Unitil Corporation 2022-11-01 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL C 2022-10-05 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2022 UNITIL CORPORA UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2022 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2022-08-02 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPOR 2022-06-23 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2022-05-18 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2022 UNITIL CORPORATION ( UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2022 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2022-05-03 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2022 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2022-05-03 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SEC Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL COR P 2022-04-27 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2022 UNITIL CORPORATION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2022 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of inco 2022-03-29 DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. 2022-03-18 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2022 UNITIL CORPORATION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 14, 2022 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2022-02-14 SC 13G/A UTL / Unitil Corporation / CAISSE DE DEPOT ET PLACEMENT DU QUEBEC - SC 13G/A Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 UNITIL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 913259107 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ? 2022-02-10 SC 13G/A UTL / Unitil Corporation / RENAISSANCE TECHNOLOGIES LLC Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* UNITIL CORPORATION - (Name of Issuer) Common Stock, no par value - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu 2022-02-09 SC 13G/A UTL / Unitil Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: Unitil Corp. Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1 2022-02-01 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-8858 UNITIL COR 2022-01-27 SC 13G/A UTL / Unitil Corporation / BlackRock Inc. Passive Investment us9132591077012722.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 14) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant t 2022-01-25 SC 13G/A UTL / Unitil Corporation / BlackRock Inc. Passive Investment us9132591077012522.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 13) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant t 2021-11-02 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL C 2021-08-05 424B5 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Maximum Offering Price Per Share Maximum Aggregate Offering Price Amount of Registration Fee(2) Common stock, no par value 920,000 $50.80 $4 Table of Contents Filed Pursuant to Rule 424(b)(5) File No. 333-258405 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Maximum Offering Price Per Share Maximum Aggregate Offering Price Amount of Registration Fee(2) Common stock, no par value 920,000 $50.80 $46,736,000 5,098.90 (1) Assumes exercise in full of the underwriters? option to 2021-08-05 8-K Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2021-08-03 S-3ASR As filed with the Securities and Exchange Commission on August 3, 2021 Table of Contents As filed with the Securities and Exchange Commission on August 3, 2021 Registration No. 2021-08-03 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECT Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPOR 2021-08-03 424B5 Subject to Completion, dated August 3, 2021 Table of Contents The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. 2021-06-21 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-8858 A. Full title of the plan and the address of the plan, i 2021-06-21 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 21, 2021 UNITIL CORPORATION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 21, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2021-05-07 SC 13G/A SC 13G/A us9132591077050621.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 12) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) April 30, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w 2021-05-04 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPO 2021-05-04 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2021-04-28 8-K Regulation FD Disclosure, Financial Statements and Exhibits - 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2021-04-05 8-K Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 2, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2021-03-25 DEF 14A definitive proxy statement Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2021-03-12 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2021 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2021-02-12 SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 UNITIL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 913259107 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☐ 2021-02-11 SC 13G/A SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* UNITIL CORPORATION - (Name of Issuer) Common Stock, no par value - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2020 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu 2021-02-10 SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Unitil Corp. Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1 2021-02-02 10-K Annual Report - 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-8858 UNITIL COR 2021-02-01 SC 13G/A SC 13G/A us9132591077013121.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 11) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2020 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant t 2020-12-14 SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 UNITIL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 913259107 (CUSIP Number) December 4, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☐ Rul 2020-12-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events - 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 30, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2020-10-29 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL C 2020-09-21 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 15, 2020 UNITIL CORPORA UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 15, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of 2020-08-04 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2020-07-30 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPOR 2020-06-24 11-K - 11-K 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2020-06-24 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2020-06-18 8-K Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 16, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2020-05-05 8-K Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2020-04-30 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31 , 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORP 2020-04-21 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2020 UNITIL CORPORATION UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2020-04-07 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2020-04-01 LETTER LETTER April 1, 2020 Lawrence M. Brock Senior Vice President, Chief Financial Officer and Treasurer UNITIL CORP 6 Liberty Lane West Hampton, New Hampshire 03842-1720 Re: UNITIL CORP Form 10-K for the Year Ended December 31, 2019 10-K filed January 30, 2020 File No. 001-08858 Dear Mr. Brock: We have completed our review of your filing. We remind you that the company and its management are responsible for 2020-03-31 DEF 14A UTL / Unitil Corp. DEF 14A - - DEF 14A DEF 14A Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2020-03-26 8-K Regulation FD Disclosure, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2020-03-25 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2020-03-23 CORRESP - CORRESP VIA EDGAR March 23, 2020 Via EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N. 2020-03-20 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): March 16, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File N 2020-03-11 LETTER LETTER March 10, 2020 Christine Vaughan Senior Vice President, Chief Financial Officer and Treasurer UNITIL CORP 6 Liberty Lane West Hampton, New Hampshire 03842-1720 Re: UNITIL CORP Form 10-K for the Year Ended December 31, 2019 10-K filed January 30, 2020 File No. 2020-03-04 8-K Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2020-03-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2020-02-14 SC 13G/A UTL / Unitil Corp. / FRONTIER CAPITAL MANAGEMENT CO LLC Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2020-02-13 SC 13G/A UTL / Unitil Corp. / Renaissance Technologies LLC Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2019 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t 2020-02-12 SC 13G/A UTL / Unitil Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13 2020-02-06 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment us9132591077020520.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 10) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2019 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant t 2020-02-03 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 29, 2020 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of in 2020-01-30 10-K Annual Report - 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-8858 UNITIL COR 2019-12-20 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2019-12-18 8-K Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 17, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2019-10-31 S-8 UTL / Unitil Corp. S-8 - - S-8 S-8 AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 31, 2019 Registration No. 2019-10-24 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL C 2019-09-17 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): September 12, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fi 2019-07-25 10-Q Quarterly Report - 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORP O 2019-07-01 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): June 28, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of inco 2019-06-12 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): June 12, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of inco 2019-06-06 11-K Form 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2019-05-20 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 20, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2019-05-01 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fi 2019-04-26 8-K Submission of Matters to a Vote of Security Holders 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2019-04-25 10-Q Quarterly Report - 10-Q 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2019-04-24 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2019-03-27 DEF 14A UTL / Unitil Corp. DEF 14A DEF 14A Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2019-03-05 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2019-02-13 SC 13G UTL / Unitil Corp. / Renaissance Technologies LLC Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 UNITIL CORPORATION - (Name of Issuer) Common Stock, No par value - (Title of Class of Securities) 913259107 - (CUSIP Number) May 3, 2018 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedul 2019-02-11 SC 13G/A UTL / Unitil Corp. / FRONTIER CAPITAL MANAGEMENT CO LLC - SC 13G/A Passive Investment SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3) UNITIL CORPORATION (Name of Issuer) COMMON STOCKS (Title of Class of Securities) 913259107 (CUSIP Number) DECEMBER 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic 2019-02-11 SC 13G/A UTL / Unitil Corp. / VANGUARD GROUP INC Passive Investment unitilcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2 )* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate 2019-02-06 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment us9132591077020619.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 9) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2018 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to 2019-02-04 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2019-01-31 10-K Form 10-K Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2019-01-03 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 2, 2019 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Comm 2018-12-04 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): November 30, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2018-10-31 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): October 24, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer 2018-10-25 10-Q UTL / Unitil Corp. FORM 10-Q (Quarterly Report) Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2018-09-04 8-K Other Events Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): August 30, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2018-07-31 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2018-07-31 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): July 25, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2018-07-26 10-Q UTL / Unitil Corp. FORM 10-Q (Quarterly Report) Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2018-06-12 11-K UTL / Unitil Corp. FORM 11-K Form 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 2018-05-18 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 18, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2018-05-07 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of inc 2018-05-01 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 25, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2018-04-26 10-Q UTL / Unitil Corp. 10-Q (Quarterly Report) 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2018-04-25 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 25, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2018-03-19 DEF 14A UTL / Unitil Corp. DEF 14A DEF 14A Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2018-03-06 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2018-03-02 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Termination of a Material Definitive Agreement, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commis 2018-02-09 SC 13G/A UTL / Unitil Corp. / VANGUARD GROUP INC Passive Investment unitilcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designate 2018-02-07 SC 13G/A UTL / Unitil Corp. / FRONTIER CAPITAL MANAGEMENT CO LLC - SC 13G/A Passive Investment SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2) UNITIL CORPORATION (Name of Issuer) COMMON STOCKS (Title of Class of Securities) 913259107 (CUSIP Number) DECEMBER 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic 2018-02-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2018 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Com 2018-02-01 10-K UTL / Unitil Corp. FORM 10-K (Annual Report) Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2018-01-23 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment us9132591077012318.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 8) UNITIL CORPORATION - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2017 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to 2017-12-13 8-K Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 11, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer 2017-12-12 424B5 600,000 Shares Common Stock 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221333 PROSPECTUS SUPPLEMENT (To Prospectus dated December 8, 2017) 600,000 Shares Common Stock Unitil Corporation is offering 600,000 shares of its common stock. Our common stock is listed on the New York Stock Exchange under the symbol ?UTL.? The last reported sale price of our common stock on December 11, 2017 was $49 2017-12-11 424B5 Subject to Completion, dated December 11, 2017 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221333 The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction 2017-12-05 CORRESP UTL / Unitil Corp. ESP CORRESP Unitil Corporation 6 Liberty Lane West Hampton, New Hampshire 03842 December 5, 2017 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F. 2017-11-13 LETTER LETTER Mail Stop 3561 November 9, 2017 Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, New Hampshire 03842-1720 Re: Unitil Corporation Registration Statement on Form S-3 Filed November 3, 2017 File No. 333-221333 Dear Mr. Collin: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regardi 2017-11-03 8-A12B/A Form 8-A/A 8-A12B/A (Amendment No. 3) As filed with the Securities and Exchange Commission on November 3, 2017 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A/A Amendment No. 3 FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New H 2017-11-03 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): November 1, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2017-11-03 S-3 UTL / Unitil Corp. S-3 S-3 Table of Contents As filed with the Securities and Exchange Commission on November 3, 2017 Registration No. 2017-10-26 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2017 Commission File Number 1-8858 UNITIL CORPORATION Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2017-08-25 8-K/A Submission of Matters to a Vote of Security Holders Form 8-K Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A Amendment No. 1 CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 26, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisd 2017-07-27 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2017 Commission File Number 1-8858 UNITIL CORPORATION (Exac Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2017-07-20 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): July 14, 2017 UNITIL CORPORATION (Ex 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): July 14, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil 2017-06-07 11-K Unitil FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2017-06-05 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): June 5, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2017-05-31 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 31, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of 2017-05-04 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 1, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2017-05-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 26, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2017-04-27 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2017 Commission File Number 1-8858 UNITIL CORPORATIO Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2017-04-24 8-K Other Events Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 21, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2017-04-24 8-K Unitil FORM 8-K (Current Report/Significant Event) Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 24, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2017-03-20 DEF 14A Unitil DEF 14A DEF 14A Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2017-02-10 SC 13G UTL / Unitil Corp. / VANGUARD GROUP INC Passive Investment unitilcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2016 Check the appropriate box to designate 2017-02-10 SC 13G/A UTL / Unitil Corp. / FRONTIER CAPITAL MANAGEMENT CO LLC - SC 13G/A Passive Investment SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1) UNITIL CORPORATION (Name of Issuer) COMMON STOCKS (Title of Class of Securities) 913259107 (CUSIP Number) DECEMBER 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic 2017-02-02 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2017-01-27 SC 13G/A Unitil 3G/A (Passive Acquisition of More Than 5% of Shares) SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 7) UNITIL CORP. - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2016 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed 2017-01-26 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2017 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2016-10-20 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2016 Commission File Number 1-8858 UNITIL CORPORATION Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2016-08-02 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of 2016-07-21 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2016 Commission File Number 1-8858 UNITIL CORPORATION (Exac 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2016-06-08 11-K Unitil FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2016-05-13 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 13, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission File 2016-05-05 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 2, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2016-05-04 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 29, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2016-05-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 29, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2016-05-02 8-K Regulation FD Disclosure Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 29, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2016-04-22 8-K Submission of Matters to a Vote of Security Holders Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 20, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2016-04-21 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2016 Commission File Number 1-8858 UNITIL CORPORATIO Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2016-04-20 8-K Regulation FD Disclosure, Financial Statements and Exhibits 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 20, 2016 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fi 2016-03-14 DEF 14A UNITIL DEF 14A DEF 14A Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2016-02-12 SC 13G UTL / Unitil Corp. / FRONTIER CAPITAL MANAGEMENT CO LLC - SC 13G Passive Investment SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* UNITIL CORPORATION (Name of Issuer) COMMON STOCKS (Title of Class of Securities) 913259107 (CUSIP Number) DECEMBER 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th 2016-01-28 10-K UNITIL Form 10-K (Annual Report) Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2016-01-28 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-8858 UNITIL CORPORATION (Exact name of registrant 2016-01-27 SC 13G/A UNITIL Form SC 13G/A (Acquisition of More Than 5% of Shares) SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 6) UNITIL CORP. - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2015 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed 2016-01-27 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 6) UNITIL CORP. - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2015 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed 2016-01-07 CORRESP UNITIL Form CORRESP CORRESP VIA EDGAR November 25, 2015 William H. Thompson Accounting Branch Chief Office of Consumer Products United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2014 Filed January 28, 2015 File No. 1-8858 Dear Mr. Thompson: Set forth below are the responses of Unitil Corporati 2015-12-08 LETTER LETTER Mail Stop 3561 December 8, 2015 Robert G. Schoenberger Chief Executive Officer and President Unitil Corporation 6 Liberty Lane West Hampton, New Hampshire 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2014 Filed January 28, 2015 File No. 1-8858 Dear Mr. Schoenberger: We have completed our review of your filing. We remind you that our comments or changes to disclosure in 2015-11-25 CORRESP Unitil ESP CORRESP VIA EDGAR November 25, 2015 William H. Thompson Accounting Branch Chief Office of Consumer Products United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2014 Filed January 28, 2015 File No. 1-8858 Dear Mr. Thompson: Set forth below are the responses of Unitil Corporati 2015-11-17 LETTER LETTER Mail Stop 3561 November 17, 2015 Robert G. Schoenberger Chief Executive Officer and President Unitil Corporation 6 Liberty Lane West Hampton, New Hampshire 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2014 Filed January 28, 2015 File No. 1-8858 Dear Schoenberger: We have limited our review of your filing to the financial statements and related disclosures and have the 2015-10-27 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Com 2015-10-27 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Com 2015-10-22 10-Q UNITIL Form 10-Q (Quarterly Report) Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2015-10-22 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2015 Commission File Number 1-8858 UNITIL CORPORATION Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2015 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or org 2015-07-27 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commis 2015-07-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2015 Commission File Number 1-8858 UNITIL CORPORATION (Exac Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2015 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiza 2015-06-16 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): June 16, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissio 2015-06-11 11-K Unitil FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2015-05-14 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 14, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2015-05-01 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 1, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2015-04-24 8-K Submission of Matters to a Vote of Security Holders Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 22, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2015-04-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2015 Commission File Number 1-8858 UNITIL CORPORATION (Exa Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2015 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiz 2015-04-22 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 22, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2015-03-16 DEF 14A Unitil DEFINITIVE PROXY STATEMENT Definitive Proxy Statement Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2015-01-28 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-8858 UNITIL CORPORATION (Exact name of registrant 2015-01-28 8-K Financial Statements and Exhibits, Results of Operations and Financial Condition 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): January 28, 2015 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2015-01-26 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 5) UNITIL CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2014 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: 2014-12-23 8-K Regulation FD Disclosure Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 23, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commi 2014-10-31 8-K Regulation FD Disclosure Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): October 30, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commis 2014-10-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2014 Commission File Number 1-8858 UNITIL CORPORATION Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2014 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or org 2014-10-16 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): October 15, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commis 2014-08-07 8-K Other Events Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): August 06, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2014-07-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2014 Commission File Number 1-8858 UNITIL CORPORATION (Exac Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2014 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiza 2014-07-14 8-K Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): July 9, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2014-06-23 SC 13D/A UTL / Unitil Corp. / Zucker Anita G - SCHEDULE 13D/A Activist Investment zucker20140620sc13da.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Unitil Corporation - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259 10 7 - (CUSIP Number) Anita G. Zucker c/o The Inter Tech Group, Inc. 4838 Jenkins Avenue North Charleston, SC 29405 (843) 744-5174 - (Name 2014-06-11 11-K - FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2014-06-03 8-K Current Report Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 30, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2014-05-16 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 16, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2014-05-01 8-K Regulation FD Disclosure, Financial Statements and Exhibits Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): May 1, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission 2014-04-24 8-K Submission of Matters to a Vote of Security Holders - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 22, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2014-04-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2014 Commission File Number 1-8858 UNITIL CORPORATION (Exa Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2014 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiz 2014-04-22 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 22, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2014-03-17 DEF 14A - DEFINITIVE PROXY STATEMENT Definitive Proxy Statement Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2014-02-12 SC 13G/A UTL / Unitil Corp. / VANGUARD GROUP INC Passive Investment unitilcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2013 Check the appropriate box to designate 2014-01-31 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 4) UNITIL CORP. - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2013 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed 2014-01-30 8-K/A Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant Form 8-K Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 29, 2014 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other 2014-01-29 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2014-01-28 S-3DPOS - FORM S-3DPOS Form S-3DPOS Table of Contents AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 28, 2014 Registration No. 2013-12-19 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 17, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commi 2013-12-13 8-K Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 12, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employe 2013-10-23 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2013 Commission File Number 1-8858 UNITIL CORPORATION Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2013 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or org 2013-10-18 8-K Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 19, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (C 2013-10-09 8-K Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 4, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or Other Jurisdiction of Incorporation) (Comm 2013-07-24 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2013 Commission File Number 1-8858 UNITIL CORPORATION (Exac Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2013 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiza 2013-07-16 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): July 15, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer of 2013-06-28 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): June 26, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissio 2013-06-20 11-K - FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2013-06-10 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2013-05-02 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 25, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2013-04-24 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2013 Commission File Number 1-8858 UNITIL CORPORATION (Exa Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2013 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiz 2013-04-23 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 18, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2013-04-18 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 18, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2013-04-15 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 15, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2013-04-04 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 1, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissio 2013-03-29 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): March 28, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2013-03-12 DEF 14A - NOTICE & PROXY STATEMENT Notice & Proxy Statement Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2013-03-05 LETTER LETTER March 5, 2013 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have completed our review of your filing. We remind you that our comments or changes to disclosure in response to our comments do not foreclose 2013-02-19 CORRESP - Correspondence VIA EDGAR February 19, 2013 Andrew D. Mew Accounting Branch Chief United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed February 11, 2012 File No. 001-08858 Dear Mr. Mew: Set forth below are the responses of Unitil Corporation (the “Registrant,” “Uniti 2013-02-12 LETTER LETTER February 12, 2013 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have reviewed your response dated January 15, 2013 and have the following comments. In some of our comments, we may ask you to provide us wi 2013-02-12 SC 13G UTL / Unitil Corp. / VANGUARD GROUP INC Passive Investment unitilcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: Unitil Corp Title of Class of Securities: Common Stock CUSIP Number: 913259107 Date of Event Which Requires Filing of this Statement: December 31, 2012 Check the appropriate box to designate 2013-02-08 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) UNITIL CORP. - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 31, 2012 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed 2013-01-30 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-8858 UNITIL CORPORATION (Exact name of registrant 2013-01-15 CORRESP - Correspondence VIA EDGAR January 15, 2013 Andrew D. Mew Accounting Branch Chief United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed February 11, 2012 File No. 001-08858 Dear Mr. Mew: Set forth below are the responses of Unitil Corporation (the “Registrant,” “Unitil 2013-01-11 8-K Regulation FD Disclosure - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): January 7, 2013 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2013-01-10 LETTER LETTER January 10, 2013 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have reviewed your response dated December 21, 2012 and have the following comments. In some of our comments, we may ask you to provide us wi 2013-01-04 8-K/A Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits - FORM 8-K AMENDMENT NO. 1 Form 8-K Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A Amendment No. 1 CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 13, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jur 2012-12-21 CORRESP - Correspondence VIA EDGAR December 21, 2012 Andrew D. Mew Accounting Branch Chief United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed February 11, 2012 File No. 001-08858 Dear Mr. Mew: Set forth below are the responses of Unitil Corporation (the “Registrant”, “Uniti 2012-12-17 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): December 13, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employe 2012-12-11 LETTER LETTER December 11, 2012 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have reviewed your letter dated November 19, 2012 and have the following comments. In some of our comments, we may ask you to provide us wit 2012-11-19 CORRESP - Correspondence VIA EDGAR November 19, 2012 Andrew D. Mew Accounting Branch Chief United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed February 11, 2012 File No. 001-08858 Dear Mr. Mew: Set forth below are the responses of Unitil Corporation (the “Registrant”, “Uniti 2012-11-09 S-8 - FORM S-8 Form S-8 AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 9, 2012 Registration No. 2012-11-06 LETTER LETTER November 6, 2012 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have reviewed your letter dated October 23, 2012 and have the following comments. In some of our comments, we may ask you to provide us with 2012-10-24 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2012 Commission File Number 1-8858 UNITIL CORPORATION Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended September 30, 2012 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or org 2012-10-23 CORRESP - Correspondence VIA EDGAR October 23, 2012 Andrew D. Mew Accounting Branch Chief United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Re: Unitil Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed February 11, 2012 File No. 001-08858 Dear Mr. Mew: Set forth below are the responses of Unitil Corporation (the “Registrant”, “Unitil 2012-10-10 LETTER LETTER October 10, 2012 Via E-mail Mark H. Collin Chief Financial Officer Unitil Corporation 6 Liberty Lane West Hampton, NH 03842 Re: Unitil Corporation Form 10-K for Fiscal Year Ended December 31, 2011 Filed February 1, 2012 File No. 001-08858 Dear Mr. Collin: We have reviewed your filings and have the following comments. We have limited our review to only your financial statements and related disclosu 2012-09-20 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): September 19, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Comm 2012-09-14 SC 13D/A UTL / Unitil Corp. / Zucker Anita G Activist Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Unitil Corporation - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259 10 7 - (CUSIP Number) Anita G. Zucker c/o The Inter Tech Group, Inc. 4838 Jenkins Avenue North Charleston, SC 29405 (843) 744-5174 - (Name, Address and Telephone N 2012-07-25 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2012 Commission File Number 1-8858 UNITIL CORPORATION (Exac Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended June 30, 2012 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiza 2012-06-27 11-K - FORM 11-K Form 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. 2012-05-14 8-K Regulation FD Disclosure, Financial Statements and Exhibits, Other Events - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 10, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commiss 2012-05-11 FWP Unitil Corporation 2,400,000 Shares Issuer: Unitil Corporation Symbol: UTL Shares offered: 2,400,000 shares of common stock Over-allotment option: 360,000 shares of common stock Price to public: $25.25 per share Closing date: May 16, 2012 Gross proce Free Writing Prospectus Filed pursuant to Rule 433 Issuer Free Writing Prospectus dated May 10, 2012 Relating to Preliminary Prospectus Supplement dated May 8, 2012 Registration Statement No. 2012-05-11 424B5 2,400,000 Shares Common Stock 424(b)(5) Table of Contents PROSPECTUS SUPPLEMENT (To Prospectus dated April 11, 2012) Filed pursuant to Rule 424(b)(5) Registration No. 2012-05-08 424B5 Subject to Completion, dated May 8, 2012 PRELIMINARY PROSPECTUS SUPPLEMENT (To Prospectus dated April 11, 2012) Filed pursuant to Rule 424(b)(5) Registration No. 333-180316 2,300,000 Shares Common Stock Prospectus Supplement Table of Contents The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. 2012-04-25 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2012 Commission File Number 1-8858 UNITIL CORPORATION (Exa Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For Quarter Ended March 31, 2012 Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdiction of incorporation or organiz 2012-04-24 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 19, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction (Commission (IRS Employer o 2012-04-06 S-3/A - AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT Amendment No. 1 to Form S-3 Registration Statement Table of Contents As filed with the Securities and Exchange Commission on April 6, 2012 Registration No. 333-180316 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 UNITIL CORPORATION (Exact Name of Registrant as Specified in its Charter) New 2012-04-02 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): April 1, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissio 2012-03-26 8-K Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): March 22, 2012 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commissi 2012-03-23 S-3 - FORM S-3 Form S-3 Table of Contents As filed with the Securities and Exchange Commission on March 23, 2012 Registration No. 2012-03-13 DEF 14A Unitil Corporation Second Amended and Restated 2003 Stock Plan Definitive Notice & Proxy Statement Table of Contents SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2012-02-14 SC 13G/A UTL / Unitil Corp. / NSB Advisors LLC - UTL 123111 Passive Investment UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Unitil Corporation - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) 12/31/2011 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S 2012-02-10 SC 13G/A UTL / Unitil Corp. / BlackRock Inc. Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) UNITIL CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 913259107 - (CUSIP Number) December 30, 2011 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: 2012-02-01 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2011 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-8858 UNITIL CORPORATION (Exact name of registrant 2011-11-30 8-K Regulation FD Disclosure, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act 1934 Date of Report (Date of earliest event reported): November 29, 2011 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 1-8858 02-0381573 (State or other jurisdiction of incorporation) (Commission Fil More