CHRISTOPHER P. MARR - 01 Jan 2026 Form 4 Insider Report for CubeSmart (CUBE)

Role: CEO, Director
Signature: Douglas J. Tyrell, Attorney-in-Fact
Issuer symbol: CUBE
Transactions as of: 01 Jan 2026
Net transactions value: +$603,585
Form type: 4
Filing time: 05 Jan 2026, 16:41:36 UTC
Previous filing: 16 Dec 2025
Next filing: 12 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MARR CHRISTOPHER P	CEO, Director	5 OLD LANCASTER ROAD, MALVERN	Douglas J. Tyrell, Attorney-in-Fact	02 Jan 2026	0001185498

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CUBE	Common	Award	$0	+34,027	+5.9%	$0.000000	615,218	01 Jan 2026	Direct	F1
transaction	CUBE	Common	Award	$799,156	+22,168	+3.6%	$36.05	637,386	01 Jan 2026	Direct	F2
transaction	CUBE	Common	Award	$0	+17,013	+2.7%	$0.000000	654,399	01 Jan 2026	Direct	F3
transaction	CUBE	Common	Tax liability	$195,571	-5,425	-0.83%	$36.05	648,974	01 Jan 2026	Direct
holding	CUBE	Common						263,838	01 Jan 2026	By Spousal Trust
holding	CUBE	Common						2,698	01 Jan 2026	By Spousal Trust #2
holding	CUBE	Common						20,265	01 Jan 2026	Held in Trust

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CUBE	Stock Option (right to buy)	Award	$0	+252,055		$0.000000	252,055	01 Jan 2026	Common	252,055	$36.05	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	These common shares represent the vesting of performance-based units granted on January 1, 2023 under the 2007 Equity Incentive Plan of the Company.
F3	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.
F4	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.