CubeSmart (NYSE: CUBE) CEO sells 108,932 shares after option exercise

Rhea-AI Filing Summary

CubeSmart CEO Christopher P. Marr exercised stock options and sold shares in related transactions. He exercised options to acquire 108,932 common shares at $26.30 per share, then sold 108,932 shares in open-market transactions at an average price of $42.2431 per share.

After these transactions, Marr directly owns 609,605 common shares, and the exercised option for 108,932 shares is fully used with no remaining balance. He also has indirect holdings through trusts, including 263,838 shares held by a spousal trust. A separate footnote notes that 50,471 common shares are now reported as directly owned following a distribution from a trust.

Insights

Equity analyst

CEO executes option exercise-and-sell, retains sizable share position.

Christopher P. Marr, CEO of CubeSmart, exercised stock options for 108,932 shares at $26.30 and sold the same number of shares at an average of $42.2431. This is a classic exercise-and-sell pattern, turning an option position into cash.

Following the transactions, Marr still holds 609,605 shares directly plus additional indirect holdings via trusts, so the sale represents only a portion of his total exposure. The relevant option grant, originally exercisable in three installments, is now fully exercised with 0 options remaining from that award.

The filing also clarifies that 50,471 shares are now reported as directly owned after being distributed from a trust. Overall, the activity appears routine for executive compensation management rather than a wholesale reduction in ownership, based on the remaining share position disclosed.

Insider Trade Summary

Net Seller: 108,932 shares ($4,601,625)

Net Sell 6 txns

Insider MARR CHRISTOPHER P

Role CEO

Sold 108,932 shs ($4.60M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	108,932	$0.00	--
Exercise	Common	108,932	$26.30	$2.86M
Sale	Common	108,932	$42.2431	$4.60M
holding	Common	--	--	--
holding	Common	--	--	--
holding	Common	--	--	--

Holdings After Transaction: Stock Option (right to buy) — 0 shares (Direct, null); Common — 718,537 shares (Direct, null); Common — 263,838 shares (Indirect, By Spousal Trust)

Footnotes (1)

1. 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.

Key Figures

Shares sold: 108,932 shares Sale price: $42.2431 per share Shares exercised: 108,932 shares +4 more

7 metrics

Shares sold 108,932 shares Open-market sale of common stock

Sale price $42.2431 per share Average price for 108,932 shares sold

Shares exercised 108,932 shares Stock option exercise into common shares

Option exercise price $26.30 per share Exercise price of stock option grant

Direct shares after transaction 609,605 shares CEO direct ownership following transactions

Spousal trust holding 263,838 shares Common shares held by spousal trust

Trust distribution to direct 50,471 shares Shares moved from trust to direct ownership

Key Terms

Stock Option (right to buy), derivative security, open-market sale, indirect ownership, +1 more

5 terms

Stock Option (right to buy) financial

"security_title: Stock Option (right to buy)"

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

indirect ownership financial

"ownership_type: indirect with shares held in trusts"

spousal trust financial

"nature_of_ownership: By Spousal Trust and Spousal Trust #2"

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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^*

MARR CHRISTOPHER P

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/10/2026

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	06/10/2026		M		108,932	A	$26.3	718,537	D(1)
Common	06/10/2026		S		108,932	D	$42.2431	609,605	D(1)
Common								263,838	I	By Spousal Trust
Common								2,698	I	By Spousal Trust #2
Common								20,265	I	Held in Trust

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	06/10/2026		M			108,932	(2)	01/22/2027	Common	108,932	$0.0000	0.0000	D

Explanation of Responses:

1. 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

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

	Douglas J. Tyrell, Attorney-in-Fact	06/10/2026
	** 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)

FAQ

What did CubeSmart (CUBE) CEO Christopher P. Marr do in this Form 4?

Christopher P. Marr exercised stock options for 108,932 CubeSmart shares and sold 108,932 shares in open-market transactions. The filing shows both the option exercise price and sale price, plus his remaining direct and indirect shareholdings after these transactions.

How many CubeSmart (CUBE) shares did the CEO sell, and at what price?

The CEO sold 108,932 CubeSmart common shares in open-market transactions at an average price of $42.2431 per share. These sales followed the exercise of stock options covering the same number of shares disclosed in the Form 4 filing.

What stock options did CubeSmart (CUBE) CEO Christopher P. Marr exercise?

Marr exercised a stock option covering 108,932 CubeSmart shares at an exercise price of $26.30 per share. A footnote explains the option originally vested in three equal installments in 2018, 2019, and 2020 and is now fully exercised with no remaining balance.

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

After the reported transactions, the CEO directly owns 609,605 CubeSmart common shares. He also has additional indirect holdings through various trusts, including 263,838 shares held by a spousal trust, as detailed in the Form 4 ownership entries.

Were any trust-held CubeSmart (CUBE) shares reclassified to direct ownership?

Yes. A footnote states that 50,471 CubeSmart common shares are now reported as directly owned, having been distributed from a trust. These shares were previously shown as indirectly owned but are now included in the CEO’s direct holdings total.