CubeSmart CFO Timothy M. Martin sells 36,765 shares

The option became exercisable in three equal installments on January 23, 2018, January 23, 2019, and January 23, 2020.

Available on EDGAR 11/03/2026 - 04:51 PM EST Accepted by SEC EDGAR 11/03/2026 - 04:50 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

CubeSmart CFO Timothy M. Martin exercised options for 36,765 shares on November 2, 2026, at an exercise price of $26.30 per share, acquired 36,765 common shares, and sold 36,765 shares at $43.5105 per share that day. No Rule 10b5-1 plan is reported. Separately, Martin reported 5,469 common shares held indirectly through a 401(k) Plan. The option became exercisable in three equal installments on January 23, 2018, January 23, 2019, and January 23, 2020.

Insider Trade Summary

Exercise and Sale: 36,765 shares ($633K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider MARTIN TIMOTHY M

Role CFO

Sold 36,765 shs ($1.60M)

Approx. gross sale proceeds $1.60M

Approx. exercise cost $967K

Approx. pre-tax spread $633K

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy) F1	36,765	$0.00	$0.00
Exercise	Common	36,765	$26.30	$967K
Sale	Common	36,765	$43.5105	$1.60M
Holding	Common	--	--	--

Holdings After Transaction: Stock Option (right to buy) — 0 contracts (Direct); Common — 384,975 shares (Direct); Common — 5,469 shares (Indirect, By 401(k) Plan)

Footnotes (1)

1. F1. The original stock option for 36,765 shares became exercisable in three equal installments on January 23, 2018, 2019, and 2020.

Key Figures

Shares acquired through option exercise: 36,765 shares Exercise price: $26.30 per share Shares sold: 36,765 shares +2 more

5 metrics

Shares acquired through option exercise 36,765 shares November 2, 2026

Exercise price $26.30 per share Options exercised November 2, 2026

Shares sold 36,765 shares November 2, 2026

Sale price $43.5105 per share November 2, 2026

Common shares held through 401(k) Plan 5,469 shares Reported November 2, 2026

Key Terms

Stock Option (right to buy), exercise price, 401(k) Plan

3 terms

Stock Option (right to buy) technical

"original stock option for 36,765 shares"

exercise price financial

"exercise price of $26.30 per share"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

401(k) Plan financial

"By 401(k) Plan"

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CUBE shares did CFO Timothy M. Martin sell, and at what price?

Timothy M. Martin sold 36,765 shares at $43.5105 per share on November 2, 2026, after exercising options for the same number of shares at $26.30 per share. No Rule 10b5-1 plan is reported.

When did Timothy M. Martin's CubeSmart stock option become exercisable?

The option became exercisable in three equal installments on January 23, 2018, January 23, 2019, and January 23, 2020.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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 PENNSYLVANIA 19355

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026

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

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

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

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	11/02/2026		M		36,765	A	$26.3	421,740	D
Common	11/02/2026		S		36,765	D	$43.5105	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)	$26.3	11/02/2026		M			36,765	(1)	01/22/2027	Common	36,765	$0.0000	0.0000	D

Explanation of Responses:

1. The original stock option for 36,765 shares became exercisable in three equal installments on January 23, 2018, 2019, and 2020.

	Douglas J. Tyrell, Attorney-in-Fact	11/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)