CUBE · CubeSmart

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.

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.

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.

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

The original stock option for 108,932 shares became exercisable in three equal installments on January 23, 2018, 2019, and 2020.

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

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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 2027 Annual Meeting of Shareholders, or date the trustee resigns or retires from service on the Board.

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.

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.

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.

The original stock option for 23,148 shares became exercisable in three equal installments on January 23, 2018, 2019, and 2020.

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

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.

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.

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.

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.

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.

These common shares represent the vesting of performance-based units granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.

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.

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 on January 1, 2029, provided the reporting person remains employed by the Company.

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, 2027, January 1, 2028, and January 1, 2029, provided the reporting person remains employed by the Company.

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, 2027, January 1, 2028, and January 1, 2029, provided the reporting person remains employed by the Company.

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 two-year period, one-half per year on January 1, 2027,and January 1, 2028, provided the reporting person remains employed by the Company.

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, 2027, January 1, 2028, and January 1, 2029, provided the reporting person remains employed by the Company.

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.

These common shares represent the vesting of performance-based shares granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.

These common shares represent the vesting of performance-based units granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.

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, 2027, January 1, 2028, and January 1, 2029, provided the reporting person remains employed by the Company.

These common shares represent the vesting of performance-based units granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.

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.

These common shares represent the vesting of performance-based units granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.

The original stock option for 29,566 shares became exercisable in three equal installments on January 22, 2017, 2018, and 2019.

The original stock option for 87,604 shares became exercisable in three equal installments on January 22, 2017, 2018, and 2019.