CUBE CFO adds 279 phantom shares via dividend equivalents

Rhea-AI Filing Summary

CubeSmart (CUBE) disclosed an insider transaction by its CFO. On 10/15/2025, the officer acquired 279 phantom shares via dividend equivalent reinvestments under the CubeSmart Trust Executive Deferred Compensation Plan. These phantom shares are derivative securities and are payable in cash on a one-for-one basis after employment ends, with the ability to reallocate among investment options each quarter. The filing lists a price of $41.11 for the derivative security and shows 22,356 derivative securities beneficially owned following the transaction, held directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider MARTIN TIMOTHY M

Role CFO

Type	Security	Shares	Price	Value
Grant/Award	Phantom Shares	279	$41.11	$11K

Holdings After Transaction: Phantom Shares — 22,356 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
10/15/2025

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

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
Phantom Shares	(1)	10/15/2025		A		279		(1)	(1)	Common	279	$41.11	22,356	D

Explanation of Responses:

1. 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.

	Douglas J. Tyrell, Attorney-in-Fact	10/15/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did CubeSmart (CUBE) disclose in this Form 4?

The CFO acquired 279 phantom shares on 10/15/2025 through dividend equivalent reinvestments under a deferred compensation plan.

What are the key terms of the phantom shares for CUBE’s CFO?

They are payable in cash on a one-for-one basis after the officer ceases employment and can be reallocated among investment options quarterly.

What price is listed for the derivative security in the filing?

The filing lists a $41.11 price for the derivative security.

How many derivative securities does the CFO hold after the transaction?

The CFO beneficially owns 22,356 derivative securities following this transaction, held directly.

What plan governs these phantom share acquisitions at CUBE?

The CubeSmart Trust Executive Deferred Compensation Plan, amended and restated January 1, 2007.