UTL

SEC source: 0000950170-25-010434 · ownership.xml · nonDerivative · entry 2

LeBlanc Christopher J · CIK 0001768487 · Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,977.49

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 41.003 shares of common stock acquired on February 29, 2024, 40.295 shares of common stock acquired on May 31, 2024, 34.485 shares of common stock acquired on August 29, 2024 and 34.188 shares of common stock acquired on November 29, 2024, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0000950170-25-010434 · ownership.xml · nonDerivative · entry 1

LeBlanc Christopher J · CIK 0001768487 · Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-25-010426 · ownership.xml · derivative · entry 3

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,090

Underlying: Common stock · 480 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-25-010426 · ownership.xml · nonDerivative · entry 2

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,916.52

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 11.050 shares of common stock acquired on February 29, 2024, 10.951 shares of common stock acquired on May 31, 2024, 9.449 shares of common stock acquired on August 29, 2024 and 9.435 shares of common stock acquired on November 29, 2024, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0000950170-25-010426 · ownership.xml · nonDerivative · entry 1

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-25-010418 · ownership.xml · derivative · entry 4

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,465

Underlying: Common stock · 480 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-25-010418 · ownership.xml · nonDerivative · entry 2

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,194

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

SEC source: 0000950170-25-010418 · ownership.xml · nonDerivative · entry 1

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-25-010413 · ownership.xml · derivative · entry 3

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,600

Underlying: Common stock · 1,070 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-25-010413 · ownership.xml · nonDerivative · entry 2

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,677.14

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 111.860 shares of common stock acquired on February 29, 2024, 110.858 shares of common stock acquired on May 31, 2024, 95.659 shares of common stock acquired on August 29, 2024 and 95.511 shares of common stock acquired on November 29, 2024, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0000950170-25-010413 · ownership.xml · nonDerivative · entry 1

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-25-010410 · ownership.xml · derivative · entry 3

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,260

Underlying: Common stock · 1,655 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-25-010410 · ownership.xml · nonDerivative · entry 2

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,950.98

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 164.013 shares of common stock acquired on February 29, 2024, 162.543 shares of common stock acquired on May 31, 2024, 140.259 shares of common stock acquired on August 29, 2024 and 140.041 shares of common stock acquired on November 29, 2024, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend reinvestment and Stock Purchase Plan.

SEC source: 0000950170-25-010410 · ownership.xml · nonDerivative · entry 1

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-25-010404 · ownership.xml · derivative · entry 4

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,505

Underlying: Common stock · 3,570 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-25-010404 · ownership.xml · nonDerivative · entry 2

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,505

F2 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

SEC source: 0000950170-25-010404 · ownership.xml · nonDerivative · entry 1

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-122907 · ownership.xml · nonDerivative · entry 1

Lewis-Raymond Jane · CIK 0001763779 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 281

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112133 · ownership.xml · nonDerivative · entry 1

WHITELEY DAVID A · CIK 0001190118 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,598

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112115 · ownership.xml · derivative · entry 2

GREEN MICHAEL B · CIK 0001253399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,922

Underlying: Common stock · 1,582 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: 0000950170-24-112125 · ownership.xml · nonDerivative · entry 1

Vogel Justine · CIK 0001766849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,699

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112111 · ownership.xml · nonDerivative · entry 1

GODFREY EDWARD F · CIK 0001241513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,289

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112107 · ownership.xml · nonDerivative · entry 1

Foster Suzanne · CIK 0001766653 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,699

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112094 · ownership.xml · nonDerivative · entry 1

COLLIN MARK H · CIK 0001240995 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,402.16

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112074 · ownership.xml · nonDerivative · entry 1

Awad Neveen F · CIK 0001952995 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,779

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112083 · ownership.xml · nonDerivative · entry 1

Brown Winfield S · CIK 0001802079 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,288

F1 · kind: Shares were granted pursuant to the Unitil Corporation Third Amended and Restated 2003 Stock Plan and transferred into my name in connection with the stock portion of my annual retainer fee as a Director of the Company.

SEC source: 0000950170-24-112065 · ownership.xml · derivative · entry 2

Alonzo Anne L. · CIK 0001894560 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,582

Underlying: Common stock · 1,582 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: 0000950170-24-008822 · ownership.xml · derivative · entry 3

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610

Underlying: Common stock · 500 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008822 · ownership.xml · nonDerivative · entry 2

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,955.63

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 7.594 shares of common stock acquired on May 30, 2023, 8.672 shares of common stock acquired on August 28, 2023, and 8.477 shares of common stock acquired on November 28, 2023, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0000950170-24-008822 · ownership.xml · nonDerivative · entry 1

Diggins Todd R · CIK 0001976526 · CAO & Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008780 · ownership.xml · derivative · entry 4

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,935

Underlying: Common stock · 3,525 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008780 · ownership.xml · nonDerivative · entry 2

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,225

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

SEC source: 0000950170-24-008780 · ownership.xml · nonDerivative · entry 1

MEISSNER THOMAS P JR · CIK 0001241002 · Director · Chairmain & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008770 · ownership.xml · derivative · entry 3

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,605

Underlying: Common stock · 1,595 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008770 · ownership.xml · nonDerivative · entry 2

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,724.13

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 92.390 shares of common stock acquired on February 28, 2023, 94.830 shares of common stock acquired on May 30, 2023, 108.290 shares of common stock acquired on August 28, 2023, and 105.850 shares of common stock acquired on November 28, 2023, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0000950170-24-008770 · ownership.xml · nonDerivative · entry 1

Hevert Robert B · CIK 0001819134 · Pres. & Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008761 · ownership.xml · derivative · entry 4

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 985

Underlying: Common stock · 500 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008761 · ownership.xml · nonDerivative · entry 2

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,274

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

SEC source: 0000950170-24-008761 · ownership.xml · nonDerivative · entry 1

Eisfeller Justin · CIK 0001909978 · VP, IT & CTO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008754 · ownership.xml · derivative · entry 3

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,530

Underlying: Common stock · 1,045 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008754 · ownership.xml · nonDerivative · entry 2

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,983.26

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 65.460 shares of common stock acquired on February 28, 2023, 67.190 shares of common stock acquired on May 30, 2023, 76.720 shares of common stock acquired on August 28, 2023, and 74.990 shares of common stock acquired on November 28, 2023, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0000950170-24-008754 · ownership.xml · nonDerivative · entry 1

Hurstak Daniel J · CIK 0001807713 · SVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008742 · ownership.xml · derivative · entry 3

LeBlanc Christopher J · CIK 0001768487 · Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 985

Underlying: Common stock · 500 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F4 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008742 · ownership.xml · nonDerivative · entry 2

LeBlanc Christopher J · CIK 0001768487 · Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,907.52

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 30.630 shares of common stock acquired on February 28, 2023, 31.210 shares of common stock acquired on May 30, 2023, 35.380 shares of common stock acquired on August 28, 2023, and 34.290 shares of common stock acquired on November 28, 2023, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0000950170-24-008742 · ownership.xml · nonDerivative · entry 1

LeBlanc Christopher J · CIK 0001768487 · Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0000950170-24-008727 · ownership.xml · derivative · entry 4

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225

Underlying: Common stock · 115 shares

Expires not disclosed

F5 · derivative.exercise_price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F5 · price: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F5 · derivative.exercise_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

F5 · derivative.expiration_date: Shares may be granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Any such shares would be granted after a three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Any such shares would be valued at current market price on date of grant.

SEC source: 0000950170-24-008727 · ownership.xml · nonDerivative · entry 2

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,617.141

F2 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally will vest after three-year performance period based on the attainment of certain performance thresholds of certain performance goals. Shares will be valued at current market price on date of vesting.

F3 · balance_after: Includes 22.390 shares of common stock acquired on February 28, 2023, 22.980 shares of common stock acquired on May 30, 2023, 22.390 shares of common stock acquired on August 28, 2023, and 25.650 shares of common stock acquired on November 28, 2023, in each case resulting from the reinvestment of dividends pursuant to Unitil Corporation's Dividend Reinvestment and Stock Purchase Plan.

SEC source: 0000950170-24-008727 · ownership.xml · nonDerivative · entry 1

WHITNEY SANDRA L · CIK 0001248881 · Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: Shares were granted pursuant to the Unitil Corporation Second Amended and Restated 2003 Stock Plan. Shares generally 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: 0001209191-23-051360 · doc4.xml · derivative · entry 2

MOULTON EBEN S · CIK 0001241004 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,340

Underlying: Common stock · 1,890 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: 0001209191-23-051357 · doc4.xml · derivative · entry 2

GREEN MICHAEL B · CIK 0001253399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,340

Underlying: Common stock · 1,890 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.