CUBE

SEC source: 0001225208-24-000976 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,043.754

Underlying: Common · 11.638 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: 0001225208-24-000975 · doc4.xml · derivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,561

Underlying: Common · 229 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: 0001225208-24-000974 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,336

Underlying: Common · 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: 0001225208-24-000231 · doc4.xml · derivative · entry 8

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,233

Underlying: Common · 15,233 shares

Expires 2033-12-31

F4 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 7

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,847

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 6

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,403

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 5

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,861

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 4

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,216

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 3

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,445

F3 · shares: These common shares represent restricted shares issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common shares vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 2

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,917

F2 · shares: These common units represent restricted units issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common units vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000231 · doc4.xml · nonDerivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,389

F1 · shares: These common shares represent the vesting of performance-based shares granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-000229 · doc4.xml · derivative · entry 3

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,674

Underlying: Common · 28,674 shares

Expires 2033-12-31

F3 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000229 · 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

F2 · shares: These common units represent restricted units issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common units vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000229 · doc4.xml · nonDerivative · entry 1

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,707

F1 · shares: These common shares represent the vesting of performance-based units granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-000230 · doc4.xml · derivative · entry 3

DeNarie Matthew D · CIK 0001967653 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,857

Underlying: Common · 9,857 shares

Expires 2033-12-31

F3 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000230 · doc4.xml · nonDerivative · entry 2

DeNarie Matthew D · CIK 0001967653 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,949

F2 · shares: These common units represent restricted units issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common units vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000230 · doc4.xml · nonDerivative · entry 1

DeNarie Matthew D · CIK 0001967653 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,971

F1 · shares: These common shares represent the vesting of performance-based units granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-000232 · doc4.xml · derivative · entry 6

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,211

Underlying: Common · 179,211 shares

Expires 2033-12-31

F3 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000232 · doc4.xml · nonDerivative · entry 2

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 580,484

F2 · shares: These common shares represent restricted shares issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common shares vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000232 · doc4.xml · nonDerivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 544,526

F1 · shares: These common shares represent the vesting of performance-based units granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-000228 · doc4.xml · derivative · entry 6

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,011

Underlying: Common · 43,011 shares

Expires 2033-12-31

F3 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000228 · doc4.xml · nonDerivative · entry 5

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,663

SEC source: 0001225208-24-000228 · doc4.xml · nonDerivative · entry 4

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,683

SEC source: 0001225208-24-000228 · doc4.xml · nonDerivative · entry 3

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,990

SEC source: 0001225208-24-000228 · doc4.xml · nonDerivative · entry 2

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,644

F2 · shares: These common shares represent restricted shares issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common shares vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000228 · doc4.xml · nonDerivative · entry 1

Keaton Joel D · CIK 0001791610 · COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,014

F1 · shares: These common shares represent the vesting of performance-based shares granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-000227 · doc4.xml · derivative · entry 4

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,932

Underlying: Common · 60,932 shares

Expires 2033-12-31

F3 · derivative.exercise_date: The stock options vest ratably over a three-year period, one-third per year on each of the first three anniversaries of the grant date, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000227 · doc4.xml · nonDerivative · entry 2

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 306,982

F2 · shares: These common units represent restricted units issued under the Company's 2007 Equity Incentive Plan and are subject to risk of forfeiture. The common units vest ratably over a three-year period, one-third per year on January 1, 2025, January 1, 2026, and January 1, 2027, provided the reporting person remains employed by the Company.

SEC source: 0001225208-24-000227 · doc4.xml · nonDerivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 294,756

F1 · shares: These common shares represent the vesting of performance-based units granted on January 1, 2021 under the 2007 Equity Incentive Plan of the Company.

SEC source: 0001225208-24-001037 · doc4.xml · nonDerivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · Held in Trust

Disclosed balance after: 30,397

F1 · shares: On December 22, 2023, 10,132 shares were distributed from a family trust to a child of the reporting person.

SEC source: 0001225208-23-009523 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,032.116

Underlying: Common · 13 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: 0001225208-23-009522 · doc4.xml · derivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,332

Underlying: Common · 256 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: 0001225208-23-009521 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,277

Underlying: Common · 67 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: 0001225208-23-008831 · doc4.xml · nonDerivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,980

SEC source: 0001225208-23-007572 · doc4.xml · derivative · entry 1

Schulte Jennifer · CIK 0001967638 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,019.116

Underlying: Common · 10.616 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: 0001225208-23-007571 · doc4.xml · derivative · entry 1

MARTIN TIMOTHY M · CIK 0001284549 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,076

Underlying: Common · 209 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: 0001225208-23-007570 · doc4.xml · derivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,210

Underlying: Common · 54 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: 0001225208-23-006679 · doc4.xml · derivative · entry 9

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common · 14,005 shares

Expires 2024-01-24

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 58,005 shares became exercisable in three equal installments on January 24, 2015, 2016, and 2017.

SEC source: 0001225208-23-006679 · doc4.xml · derivative · entry 8

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,005

Underlying: Common · 8,052 shares

Expires 2024-01-24

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 58,005 shares became exercisable in three equal installments on January 24, 2015, 2016, and 2017.

SEC source: 0001225208-23-006679 · doc4.xml · nonDerivative · entry 4

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,960

SEC source: 0001225208-23-006679 · doc4.xml · nonDerivative · entry 3

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,965

SEC source: 0001225208-23-006679 · doc4.xml · nonDerivative · entry 2

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 503,017

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: 0001225208-23-006679 · doc4.xml · nonDerivative · entry 1

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,965

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: 0001225208-23-006628 · doc4.xml · derivative · entry 3

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,739

Underlying: Common · 15,000 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.

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: 0001225208-23-006628 · doc4.xml · nonDerivative · entry 2

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,112

SEC source: 0001225208-23-006628 · doc4.xml · nonDerivative · entry 1

Foster Jeffrey P · CIK 0001456473 · CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 184,112

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: 0001225208-23-006629 · doc4.xml · derivative · entry 9

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,057

Underlying: Common · 10,000 shares

Expires 2024-01-24

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 58,005 shares became exercisable in three equal installments on January 24, 2015, 2016, and 2017.

SEC source: 0001225208-23-006629 · doc4.xml · derivative · entry 8

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,057

Underlying: Common · 6,948 shares

Expires 2024-01-24

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 58,005 shares became exercisable in three equal installments on January 24, 2015, 2016, and 2017.

SEC source: 0001225208-23-006629 · doc4.xml · nonDerivative · entry 4

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,960

SEC source: 0001225208-23-006629 · doc4.xml · nonDerivative · entry 3

MARR CHRISTOPHER P · CIK 0001185498 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 490,960