# EDGAR Filing Document

**Accession Number:** 0001298675
**File Stem:** 0001225208-23-004103
**Filing Date:** 2023-3
**Character Count:** 5337
**Document Hash:** 20ebbcc13ab30dc9da897e76ed91e712
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001225208-23-004103.hdr.sgml**: 20230317

**ACCESSION NUMBER**: 0001225208-23-004103

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230315

**FILED AS OF DATE**: 20230317

**DATE AS OF CHANGE**: 20230317

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** DeNarie Matthew D
- **CENTRAL INDEX KEY:** 0001967653

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-32324
- **FILM NUMBER:** 23743532

**MAIL ADDRESS:**
- **STREET 1:** 5 OLD LANCASTER ROAD
- **CITY:** MALVERN
- **STATE:** PA
- **ZIP:** 19355
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CubeSmart
- **CENTRAL INDEX KEY:** 0001298675
- **STANDARD INDUSTRIAL CLASSIFICATION:** REAL ESTATE INVESTMENT TRUSTS [6798]
- **IRS NUMBER:** 201024732
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5 OLD LANCASTER ROAD
- **CITY:** MALVERN
- **STATE:** PA
- **ZIP:** 19355
- **BUSINESS PHONE:** 610-535-5700

**MAIL ADDRESS:**
- **STREET 1:** 5 OLD LANCASTER ROAD
- **CITY:** MALVERN
- **STATE:** PA
- **ZIP:** 19355

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** U-Store-It Trust
- **DATE OF NAME CHANGE:** 20040727

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>DeNarie Matthew D<br><sub>(Last) (First) (Middle)</sub><br>5 OLD LANCASTER ROAD<br><sub>(Street)</sub><br>MALVERN, PA 19355<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>CubeSmart [ CUBE ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2023-03-15 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_Chief Accounting Officer_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common | 13643.0000 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Stock Option (right to buy) | <sup>(1)</sup> | 2028-12-31 | Common | 5774.0000 | $28.6900 | D |  |
| Stock Option (right to buy) | <sup>(2)</sup> | 2028-05-29 | Common | 7143.0000 | $30.5900 | D |  |
| Stock Option (right to buy) | <sup>(3)</sup> | 2029-12-31 | Common | 11840.0000 | $31.4800 | D |  |
| Stock Option (right to buy) | <sup>(4)</sup> | 2030-12-31 | Common | 10870.0000 | $33.6100 | D |  |
| Stock Option (right to buy) | <sup>(5)</sup> | 2032-12-31 | Common | 10549.0000 | $40.2500 | D |  |
| Stock Option (right to buy) | <sup>(6)</sup> | 2031-12-31 | Common | 6606.0000 | $56.9100 | D |  |

---

### Footnotes:

(1) The stock options were granted on January 1, 2019 and are fully vested.

(2) The stock options were granted on May 30, 2018 and are fully vested.

(3) The stock options were granted on January 1, 2020 and are fully vested.

(4) The original stock option for 10,870 shares are exercisable in three equal installments on January 1, 2022, 2023 and 2024.

(5) The original stock option for 10,549 shares are exercisable in three equal installments on January 1, 2024, 2025 and 2026.

(6) The original stock option for 6,606 shares are exercisable in three equal installments on January 1, 2023, 2024 and 2025.

**Signature:** Douglas J. Tyrell, Attorney-in-Fact  
**Date:** 2023-03-15

### Remarks:

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.**