UTL

SEC source: 0001209191-19-033163 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Indirect · Held in Trust

Disclosed balance after: 0

F1 · shares: Disposition of shares was in connection with a rebalance of Mr. Black's Tax Deferred Savings and Investment Plan account.

F2 · ownership.nature: Shares were held in trust under the terms of the Unitil Corporation Tax Deferred Savings and Investment Plan.

SEC source: 0001209191-19-032262 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Indirect · Held in Trust

Disclosed balance after: 940.82

F1 · shares: Disposition of shares was in connection with a rebalance of Mr. Black's Tax Deferred Savings and Investment Plan account.

F2 · ownership.nature: Shares are held in trust under the terms of the Unitil Corporation Tax Deferred Savings and Investment Plan.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 6

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,980.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 5

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,054.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 4

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,104.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 3

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,262.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 2

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,265.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,439.542

F1 · shares: Shares were sold as part of a rebalance of Mr. Black's individual retirement account.

SEC source: 0001209191-19-031677 · doc4.xml · nonDerivative · entry 7

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,157.409

F2 · balance_after: Acquisition pursuant to reinvestment of dividends.

SEC source: 0001209191-19-006104 · doc4.xml · nonDerivative · entry 1

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,291.214

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 8.16 shares of common stock acquired on February 28, 2018, 7.547 shares of common stock acquired on May 29, 2018, 7.102 shares of common stock acquired on August 29, 2018 and 7.158 shares of common stock acquired on November 29, 2018, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0001209191-19-006101 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,480.542

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 171.141 shares of common stock acquired on August 29, 2018, 172.487 shares of common stock acquired on November 29, 2018, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0001209191-19-006099 · doc4.xml · nonDerivative · entry 1

Brock Laurence M · CIK 0001330516 · Controller & C.A.O.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,083.859

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-19-006097 · doc4.xml · nonDerivative · entry 1

COLLIN MARK H · CIK 0001240995 · SR. VP , CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,066.161

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-19-006095 · doc4.xml · nonDerivative · entry 1

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,185

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-18-053064 · doc4.xml · derivative · entry 2

WHITELEY DAVID A · CIK 0001190118 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,146

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053057 · doc4.xml · derivative · entry 2

OSHAUGHNESSY M BRIAN · CIK 0001240990 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,240

Underlying: Common stock · 1,208 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F2 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F2 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053052 · doc4.xml · derivative · entry 2

MOULTON EBEN S · CIK 0001241004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,240

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053046 · doc4.xml · derivative · entry 2

GREEN MICHAEL B · CIK 0001253399 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,240

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053044 · doc4.xml · derivative · entry 2

GODFREY EDWARD F · CIK 0001241513 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,146

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053040 · doc4.xml · derivative · entry 2

Crutchfield Lisa · CIK 0001564675 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,146

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053042 · doc4.xml · derivative · entry 2

ELFNER ALBERT H III · CIK 0001241006 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,643

Underlying: Common stock · 1,611 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053038 · doc4.xml · derivative · entry 2

BROWNELL DAVID P · CIK 0001241007 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,240

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-053036 · doc4.xml · derivative · entry 2

Antonucci Robert V · CIK 0001297010 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,146

Underlying: Common stock · 1,208 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-18-049762 · doc4.xml · nonDerivative · entry 1

COLLIN MARK H · CIK 0001240995 · SR. VP , CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,746.161

F1 · kind: Shares granted in connection with a length of service award for 30 years of service to the Company.

SEC source: 0000899243-18-015049 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · SR. VICE PRESIDENT

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,286.914

F1 · kind: Shares granted in connection with a length of service award for 20 years of service to the Company.

F2 · balance_after: Includes 196.564 shares of common stock acquired on February 28, 2018, and 185.650 shares of common stock acquired on May 29, 2018, in each case from the reinvestment of dividends pursuant to the Unitil Corporation Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0001209191-18-005965 · doc4.xml · nonDerivative · entry 1

COLLIN MARK H · CIK 0001240995 · SR. VP , CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,735.161

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-18-005959 · doc4.xml · nonDerivative · entry 1

Brock Laurence M · CIK 0001330516 · Controller & C.A.O.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,233.859

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-18-005957 · doc4.xml · nonDerivative · entry 1

SCHOENBERGER ROBERT G · CIK 0001240975 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,129.826

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-18-005952 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,896.7

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 168.695 shares of common stock acquired on February 28, 2017, 160.364 shares of common stock acquired on May 30, 2017, 152.413 share of common stock acquired on August 29, 2017, 151.357 shares of common stock acquired on November 29, 2017, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0001209191-18-005954 · doc4.xml · nonDerivative · entry 1

MEISSNER THOMAS P JR · CIK 0001241002 · Sr. Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,695

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

SEC source: 0001209191-18-005943 · doc4.xml · nonDerivative · entry 1

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 971.247

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 5.292 shares of common stock acquired on February 28, 2017, 5.031 shares of common stock acquired on May 20, 2017, 4.782 share of common stock acquired on August 29, 2017 and 4.749 shares of common stock acquired on November 29, 2017, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0001209191-17-063443 · doc4.xml · nonDerivative · entry 1

SCHOENBERGER ROBERT G · CIK 0001240975 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,449.826

F1 · kind: Shares granted in connection with a length of service award for 20 years of service to the Company.

SEC source: 0001209191-17-055152 · doc4.xml · derivative · entry 5

OSHAUGHNESSY M BRIAN · CIK 0001240990 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,032

Underlying: Common stock · 1,194 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F2 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F2 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-055022 · doc4.xml · derivative · entry 2

MOULTON EBEN S · CIK 0001241004 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,032

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-055063 · doc4.xml · derivative · entry 2

GREEN MICHAEL B · CIK 0001253399 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,032

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054989 · doc4.xml · derivative · entry 2

GODFREY EDWARD F · CIK 0001241513 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,938

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054942 · doc4.xml · derivative · entry 2

ELFNER ALBERT H III · CIK 0001241006 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,032

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054935 · doc4.xml · derivative · entry 2

BROWNELL DAVID P · CIK 0001241007 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,032

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054926 · doc4.xml · derivative · entry 2

Antonucci Robert V · CIK 0001297010 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,938

Underlying: common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054911 · doc4.xml · nonDerivative · entry 3

VOLL SARAH P · CIK 0001241005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,215

F1 · kind: Shares were purchased on my behalf by Unitil Corporation and transferred into my name in connection with the stock portion of my annual Retainer Fee received as a Director of the Company.

SEC source: 0001209191-17-054911 · doc4.xml · nonDerivative · entry 2

VOLL SARAH P · CIK 0001241005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Shares were purchased on my behalf by Unitil Corporation and transferred into my name in connection with the stock portion of my annual Retainer Fee received as a Director of the Company.

SEC source: 0001209191-17-054911 · doc4.xml · nonDerivative · entry 1

VOLL SARAH P · CIK 0001241005 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Shares were purchased on my behalf by Unitil Corporation and transferred into my name in connection with the stock portion of my annual Retainer Fee received as a Director of the Company.

SEC source: 0001209191-17-054897 · doc4.xml · derivative · entry 2

WHITELEY DAVID A · CIK 0001190118 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,938

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-054901 · doc4.xml · derivative · entry 2

Crutchfield Lisa · CIK 0001564675 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,938

Underlying: Common stock · 1,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.exercise_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

F1 · derivative.expiration_date: Each restricted stock unit is equivalent in value to one share of Unitil Corporation's common stock, no par value ("Common Stock"), and represents the right to receive a combination of cash and Common Stock after separation from service on Unitil Corporation's Board of Directors. Each restricted stock unit is fully vested upon grant and is payable 70% in Common Stock and 30% in cash, based upon the closing price of Common Stock on the day prior to settlement.

SEC source: 0001209191-17-055152 · doc4.xml · nonDerivative · entry 4

OSHAUGHNESSY M BRIAN · CIK 0001240990 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,106.262

F1 · kind: Acquisition pursuant to reinvestment of dividends.

SEC source: 0001209191-17-038267 · doc4.xml · nonDerivative · entry 2

LONG GEORGE E JR · CIK 0001240976 · Vice President

10b5-1 filing: Not disclosed

Ownership: Indirect · Held in trust

Disclosed balance after: 0

F2 · kind: Reallocation of 401K stock fund to non-stock funds resulting in disposition of shares.

SEC source: 0001209191-17-055152 · doc4.xml · nonDerivative · entry 3

OSHAUGHNESSY M BRIAN · CIK 0001240990 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Acquisition pursuant to reinvestment of dividends.

SEC source: 0001209191-17-055152 · doc4.xml · nonDerivative · entry 2

OSHAUGHNESSY M BRIAN · CIK 0001240990 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Acquisition pursuant to reinvestment of dividends.

SEC source: 0001209191-17-006310 · doc4.xml · nonDerivative · entry 1

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 651.393

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 3.506 shares of common stock acquired on May 28, 2015, 3.306 shares of common stock acquired on August 28, 2015, 3.421 shares of common stock acquired on November 27, 2015, 3.125 shares of common stock acquired on February 26, 2016, 3.173 shares of common stock acquired on May 27, 2016, 3.168 shares of common stock acquired on August 26, 2016 and 2.934 shares of common stock acquired on November 28, 2016, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0001209191-17-006278 · doc4.xml · nonDerivative · entry 1

BLACK TODD R · CIK 0001241000 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,263.871

F1 · price: Shares were granted pursuant to the Unitil Corporation Restricted Stock Plan. Shares will vest 25% per year over four years from date of grant. Shares will be valued at current market price on date of vesting.

F2 · balance_after: Includes 163.270 shares of common stock acquired on February 26, 2016, 165.810 shares of common stock acquired on May 27, 2016, 165.540 shares of common stock acquired on August 26, 2016 and 153.294 shares of common stock acquired on November 28, 2016, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.