CUBE

SEC source: 0001225208-24-009325 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,514

Underlying: Common · 56 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-008695 · doc4.xml · nonDerivative · entry 1

DeNarie Matthew D · CIK 0001967653 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,081

SEC source: 0001225208-24-008696 · doc4.xml · derivative · entry 3

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 15,942 shares

Expires 2030-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 15,942 shares are exercisable in three equal installments on January 1, 2022, 2023 and 2024.

SEC source: 0001225208-24-008696 · doc4.xml · nonDerivative · entry 2

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,847

SEC source: 0001225208-24-008696 · doc4.xml · nonDerivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,789

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-008025 · doc4.xml · derivative · entry 4

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 30,765 shares

Expires 2025-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 30,765 shares became exercisable in three equal installments on January 23, 2016, 2017 and 2018.

SEC source: 0001225208-24-008025 · doc4.xml · nonDerivative · entry 2

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 306,982

SEC source: 0001225208-24-008025 · doc4.xml · nonDerivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 337,747

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-008024 · doc4.xml · derivative · entry 6

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 37,906 shares

Expires 2025-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The original stock option for 74,906 shares became exercisable in three equal installments on January 23, 2016, 2017 and 2018.

SEC source: 0001225208-24-008024 · doc4.xml · nonDerivative · entry 2

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,836

F1 · ownership.direct: Reflects direct ownership of 50,471 common shares, which were previously reported as indirectly owned by Trust, as the result of a distribution of such shares from the Trust to the reporting person

SEC source: 0001225208-24-008024 · doc4.xml · nonDerivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 614,742

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: Reflects direct ownership of 50,471 common shares, which were previously reported as indirectly owned by Trust, as the result of a distribution of such shares from the Trust to the reporting person

SEC source: 0001225208-24-007959 · doc4.xml · derivative · entry 6

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,906

Underlying: Common · 37,000 shares

Expires 2025-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The original stock option for 74,906 shares became exercisable in three equal installments on January 23, 2016, 2017 and 2018.

SEC source: 0001225208-24-007959 · doc4.xml · nonDerivative · entry 2

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,836

F1 · ownership.direct: Reflects direct ownership of 50,471 common shares, which were previously reported as indirectly owned by Trust, as the result of a distribution of such shares from the Trust to the reporting person

SEC source: 0001225208-24-007959 · doc4.xml · nonDerivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 613,836

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: Reflects direct ownership of 50,471 common shares, which were previously reported as indirectly owned by Trust, as the result of a distribution of such shares from the Trust to the reporting person

SEC source: 0001225208-24-007897 · doc4.xml · derivative · entry 3

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 43,478 shares

Expires 2030-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 43,478 shares became exercisable in three equal installments on January 1, 2022, 2023, and 2024.

SEC source: 0001225208-24-007897 · doc4.xml · nonDerivative · entry 2

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,663

SEC source: 0001225208-24-007897 · doc4.xml · nonDerivative · entry 1

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,141

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-007896 · doc4.xml · derivative · entry 3

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 7,739 shares

Expires 2025-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 22,739 shares became exercisable in three equal installments on January 23, 2016, 2017 and 2018.

SEC source: 0001225208-24-007896 · doc4.xml · nonDerivative · entry 2

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,460

SEC source: 0001225208-24-007896 · doc4.xml · nonDerivative · entry 1

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,199

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-007425 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 905.622

Underlying: Common · 9.63 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-007424 · doc4.xml · derivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,031

Underlying: Common · 224 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-007423 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,458

Underlying: Common · 58 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-006844 · doc4.xml · derivative · entry 5

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 45,537 shares

Expires 2029-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The original stock option for 45,537 shares became exercisable in three equal installments on January 1, 2021, 2022, and 2023.

SEC source: 0001225208-24-006844 · doc4.xml · derivative · entry 4

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 24,147 shares

Expires 2028-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 24,147 shares became exercisable in three equal installments on January 1, 2020, 2021, and 2022.

SEC source: 0001225208-24-006844 · doc4.xml · nonDerivative · entry 3

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,663

SEC source: 0001225208-24-006844 · doc4.xml · nonDerivative · entry 2

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,347

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-006844 · doc4.xml · nonDerivative · entry 1

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-006299 · doc4.xml · nonDerivative · entry 1

REMONDI JOHN F · CIK 0001109264 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,969

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006294 · doc4.xml · nonDerivative · entry 1

Bussani Piero · CIK 0001485013 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,966

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006301 · doc4.xml · nonDerivative · entry 1

RATNERSALZBERG DEBORAH · CIK 0001217466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,247

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006298 · doc4.xml · nonDerivative · entry 1

Lynch Jair K · CIK 0001928242 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,465

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006300 · doc4.xml · nonDerivative · entry 1

ROGATZ JEFFREY F · CIK 0001283783 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,114

F1 · shares: The common units are issued under the Company's 2007 Equity Incentive Plan. The common units vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006297 · doc4.xml · nonDerivative · entry 1

FAIN JOHN W · CIK 0001266220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,878

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006296 · doc4.xml · nonDerivative · entry 1

Dowling Dororthy · CIK 0001711832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,598

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-006295 · doc4.xml · nonDerivative · entry 1

Chin Jit Kee · CIK 0001798435 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,682

F1 · shares: The common shares are issued under the Company's 2007 Equity Incentive Plan. The common shares vest on the earlier of the first anniversary of the grant date, or the date of the 2025 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

SEC source: 0001225208-24-005673 · doc4.xml · derivative · entry 7

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 23,312 shares

Expires 2028-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The original stock option for 23,312 shares became exercisable in three equal installments on January 23, 2019, 2020, and 2021.

SEC source: 0001225208-24-005673 · doc4.xml · derivative · entry 6

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 20,969 shares

Expires 2027-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The original stock option for 20,969 shares became exercisable in three equal installments on January 23, 2018, 2019, and 2020.

SEC source: 0001225208-24-005673 · doc4.xml · derivative · entry 5

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 13,141 shares

Expires 2026-01-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 13,141 shares became exercisable in three equal installments on January 22, 2017, 2018, and 2019.

SEC source: 0001225208-24-005673 · doc4.xml · nonDerivative · entry 4

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,663

SEC source: 0001225208-24-005673 · doc4.xml · nonDerivative · entry 3

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,085

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-005673 · doc4.xml · nonDerivative · entry 2

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,944

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-005673 · doc4.xml · nonDerivative · entry 1

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,975

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-005058 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 895.992

Underlying: Common · 10.59 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-005057 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,400

Underlying: Common · 64 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-005056 · doc4.xml · derivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,807

Underlying: Common · 246 shares

Expires not disclosed

F1 · derivative.exercise_price: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.exercise_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

F1 · derivative.expiration_date: These phantom shares were acquired through reinvestment of dividend equivalents under the CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007, and are payable in cash on a one-for-one basis after the reporting person ceases employment with the Company. The reporting person may elect to transfer these phantom shares at any time by reallocating his or her deemed investment option to another investment alternative, and such transfer will be effected on the first business day of the calendar quarter following the election.

SEC source: 0001225208-24-003798 · doc4.xml · derivative · entry 3

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 8,026 shares

Expires 2025-01-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The original stock option for 8,026 shares became exercisable in three equal installments on January 23, 2016 2017, and 2018.

SEC source: 0001225208-24-003798 · doc4.xml · nonDerivative · entry 2

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,663

SEC source: 0001225208-24-003798 · doc4.xml · nonDerivative · entry 1

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,689

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001225208-24-001488 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 885.402

Underlying: Common · 158.352 shares

Expires not disclosed

F1 · derivative.exercise_price: These shares are phantom shares held in the CubeSmart Executive Deferred Compensation Plan and were sold pursuant to a distribution election made by the reporting party prior to January 31, 2023.

F1 · derivative.exercise_date: These shares are phantom shares held in the CubeSmart Executive Deferred Compensation Plan and were sold pursuant to a distribution election made by the reporting party prior to January 31, 2023.

F1 · derivative.expiration_date: These shares are phantom shares held in the CubeSmart Executive Deferred Compensation Plan and were sold pursuant to a distribution election made by the reporting party prior to January 31, 2023.