CubeSmart (CUBE) CFO discloses RSU grants, PSU vesting and 87,900 options

Rhea-AI Filing Summary

CubeSmart's CFO reported several equity transactions dated January 1, 2026. The filing shows a grant of 17,799 restricted common units under the 2007 Equity Incentive Plan, which will vest in three equal parts on January 1, 2027, 2028, and 2029, as long as the executive remains employed by the company.

The CFO also reported 8,381 common shares from the vesting of performance-based units that were originally granted on January 1, 2023. In addition, the executive received stock options for 87,900 shares at an exercise price of $36.05 per share, expiring December 31, 2035, vesting in three equal annual installments on the first three anniversaries of the grant date.

After these transactions, the CFO beneficially owns 384,975 common shares directly and 5,469 shares indirectly through a 401(k) plan.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MARTIN TIMOTHY M

(Last) (First) (Middle)

5 OLD LANCASTER ROAD

(Street)

MALVERN PA 19355

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CubeSmart [ CUBE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO

3. Date of Earliest Transaction (Month/Day/Year)
01/01/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common	01/01/2026		A		17,799(1)	A	$0.0000	376,594	D
Common	01/01/2026		A		8,381(2)	A	$36.05	384,975	D
Common								5,469	I	By 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$36.05	01/01/2026		A		87,900		(3)	12/31/2035	Common	87,900	$0.0000	87,900	D

Explanation of Responses:

1. 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.

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

3. 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.

	Douglas J. Tyrell, Attorney-in-Fact	01/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did CubeSmart (CUBE) disclose for its CFO?

The CFO of CubeSmart (CUBE) disclosed equity awards dated January 1, 2026, including grants of restricted units, vesting of performance-based units, and a new stock option award under the company’s 2007 Equity Incentive Plan.

How many restricted units did CubeSmart (CUBE) grant to its CFO on January 1, 2026?

The CFO received 17,799 restricted common units on January 1, 2026. These units were issued under CubeSmart’s 2007 Equity Incentive Plan and are subject to forfeiture until they vest.

What is the vesting schedule for the new restricted units reported by CubeSmart (CUBE)?

The 17,799 restricted units vest ratably over three years, with one-third vesting on January 1, 2027, one-third on January 1, 2028, and the final third on January 1, 2029, if the CFO remains employed by CubeSmart.

What performance-based shares vested for the CubeSmart (CUBE) CFO?

The CFO reported the vesting of 8,381 common shares tied to performance-based units that were originally granted on January 1, 2023 under CubeSmart’s 2007 Equity Incentive Plan.

What stock options were granted to the CubeSmart (CUBE) CFO?

The CFO received 87,900 stock options with an exercise price of $36.05 per share, expiring on December 31, 2035. These options vest in three equal annual installments on each of the first three anniversaries of the January 1, 2026 grant date, subject to continued employment.

How many CubeSmart (CUBE) shares does the CFO beneficially own after these transactions?

Following the reported transactions, the CFO beneficially owns 384,975 common shares directly and 5,469 common shares indirectly through a 401(k) plan.