Comparable stake leader
VANGUARD PORTFOLIO MANAGEMENT LLC
SEC ownership of CubeSmart
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001298675.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
19 May 2026
- Symbol
- CUBE on NYSE
- SEC evidence covered
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- VANGUARD PORTFOLIO MANAGEMENT LLC
- Latest 13D/G holder
- VANGUARD PORTFOLIO MANAGEMENT LLC
- Latest parsed evidence date
- 19 May 2026
- CIK
- 0001298675
- Location
- Malvern, PA
Ownership snapshot
2 signals
Issuer
2 identity fields
Ownership snapshot
Top shareholders of CubeSmart (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
19 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 8.6%
13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 8.6%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC
8.6%
VANGUARD CAPITAL MANAGEMENT LLC
5.3%
NORGES BANK
5.2%
STATE STREET CORP
5%
FMR LLC
4.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
8.6%
|
$713,231,356
19,460,610 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.3%
|
$445,003,310
12,141,973 shares
|
$0 | 31 Mar 2026 |
| NORGES BANK |
13D/G
|
5.2%
|
$440,424,108
11,823,466 shares
|
$0 | 31 Mar 2026 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
5%
|
$411,362,810
11,322,951 shares
|
-$5,456,403 | 31 Dec 2025 |
| FMR LLC |
13D/G
13F
Company
|
4.6%
|
$423,240,280
10,594,250 shares
|
-$110,780,711 | 31 Mar 2025 |
| Jeffrey P. Foster |
3/4/5
CLO & Secretary
|
0.09%
|
$8,410,453
205,057 shares
|
-$949,420 | 03 Mar 2026 |
| Jennie Weber |
3/4/5
Director
|
0%
|
$148,212
4,044 shares
|
— | 19 May 2026 |
| Martin P. Connor |
3/4/5
Director
|
0%
|
$148,212
4,044 shares
|
— | 19 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$2,689,343.
Buys
$0
Insiders: 0
Sells
$2,689,343
Insiders: 2
Net
-$2,689,343
Shares: -70,752
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 70,752
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 23,148 | $0 | $949,420 | -$949,420 |
| 3-6 | 0 | 47,604 | $0 | $1,739,923 | -$1,739,923 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to CubeSmart. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Christopher P. Marr
Net 12M change
-$2,689,343
Latest report
19 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Christopher P. Marr | CEO, Director | $33,450,555 | -$1,739,923 | -4.9% | Mixed | 15 Apr 2026 |
| Timothy M. Martin | Cfo | $14,979,979 | Mixed | 15 Apr 2026 | ||
| Jeffrey P. Foster | CLO & Secretary | $8,410,453 | -$949,420 | -10% | Filing P/S | 03 Mar 2026 |
| Joel D. Keaton | Coo | $7,231,005 | Mixed | 31 Jan 2025 | ||
| John F. Remondi | Director | $5,823,443 | Mixed | 19 May 2026 | ||
| Piero Bussani | Director | $5,117,236 | Mixed | 19 May 2026 | ||
| Jeffrey F. Rogatz | Director | $4,265,993 | Mixed | 19 May 2026 | ||
| John W. Fain | Director | $3,541,250 | Mixed | 20 May 2025 | ||
| Deborah Ratnersalzberg | Director | $2,917,482 | Mixed | 20 May 2025 | ||
| Dororthy Dowling | Director | $2,421,370 | Mixed | 19 May 2026 | ||
| Marianne M. Keler | Director | $2,305,634 | Mixed | 11 May 2021 | ||
| Matthew D. DeNarie | Chief Accounting Officer | $877,601 | Mixed | 01 Jan 2026 | ||
| Jair K. Lynch | Director | $842,113 | Mixed | 19 May 2026 | ||
| Jit Kee Chin | Director | $780,694 | Mixed | 19 May 2026 | ||
| Jennifer Schulte | Chief Human Resources Officer | $713,930 | Mixed | 15 Apr 2026 | ||
| Martin P. Connor | Director | $148,212 | Median | 19 May 2026 | ||
| Jennie Weber | Director | $148,212 | Median | 19 May 2026 |
Recent insider transactions for CubeSmart
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Jeffrey F. Rogatz | CUBE | Common | Award | 7.48% | 4,044 | 58,114 | 19 May 2026 | Direct | ||
| Jennie Weber | CUBE | Common | Award | 4,044 | 4,044 | 19 May 2026 | Direct | |||
| John F. Remondi | CUBE | Common | Award | 5.47% | 4,044 | 77,969 | 19 May 2026 | Direct | ||
| Jair K. Lynch | CUBE | Common | Award | 38.8% | 4,044 | 14,465 | 19 May 2026 | Direct | ||
| Dororthy Dowling | CUBE | Common | Award | 13.2% | 4,044 | 34,598 | 19 May 2026 | Direct | ||
| Martin P. Connor | CUBE | Common | Award | 4,044 | 4,044 | 19 May 2026 | Direct | |||
| Jit Kee Chin | CUBE | Common | Award | 42% | 4,044 | 13,682 | 19 May 2026 | Direct | ||
| Piero Bussani | CUBE | Common | Award | 6.23% | 4,044 | 68,966 | 19 May 2026 | Direct | ||
| Jennifer Schulte | CUBE | Phantom Shares | Award | 1.36% | 13.28 | 989 | 15 Apr 2026 | Direct | ||
| Timothy M. Martin | CUBE | Phantom Shares | Award | 1.36% | 308 | 22,963 | 15 Apr 2026 | Direct | ||
| Christopher P. Marr | CUBE | Phantom Shares | Award | 1.36% | 80 | 5,960 | 15 Apr 2026 | Direct | ||
| Jeffrey P. Foster | CUBE | Common | Sale | -10.1% | $949,420 | $41.02 | -23,148 | 205,057 | 03 Mar 2026 | Direct |
| Jeffrey P. Foster | CUBE | Common | Options Exercise | 11.3% | 23,148 | 228,205 | 03 Mar 2026 | Direct | ||
| Jeffrey P. Foster | CUBE | Stock Option (right to buy) | Options Exercise | -100% | -23,148 | 0 | 03 Mar 2026 | Direct | ||
| Christopher P. Marr | CUBE | Common | Tax liability | -6.07% | -39,369 | 609,605 | 31 Jan 2026 | Direct | ||
| Christopher P. Marr | CUBE | Phantom Shares | Award | 1.34% | 78 | 5,880 | 16 Jan 2026 | Direct | ||
| Timothy M. Martin | CUBE | Phantom Shares | Award | 1.34% | 299 | 22,655 | 16 Jan 2026 | Direct | ||
| Jennifer Schulte | CUBE | Phantom Shares | Award | 1.34% | 12.88 | 976 | 16 Jan 2026 | Direct | ||
| Matthew D. DeNarie | CUBE | Common | Award | 19.6% | 3,986 | 24,344 | 01 Jan 2026 | Direct | ||
| Matthew D. DeNarie | CUBE | Stock Option (right to buy) | Award | 13,014 | 13,014 | 01 Jan 2026 | Direct | |||
| Jeffrey P. Foster | CUBE | Common | Award | 6.25% | 12,067 | 205,057 | 01 Jan 2026 | Direct | ||
| Jeffrey P. Foster | CUBE | Stock Option (right to buy) | Award | 42,237 | 42,237 | 01 Jan 2026 | Direct | |||
| Christopher P. Marr | CUBE | Common | Tax liability | -0.83% | -5,425 | 648,974 | 01 Jan 2026 | Direct | ||
| Christopher P. Marr | CUBE | Common | Award | 12.6% | 73,208 | 654,399 | 01 Jan 2026 | Direct | ||
| Christopher P. Marr | CUBE | Stock Option (right to buy) | Award | 252,055 | 252,055 | 01 Jan 2026 | Direct | |||
| Timothy M. Martin | CUBE | Common | Award | 7.3% | 26,180 | 384,975 | 01 Jan 2026 | Direct | ||
| Timothy M. Martin | CUBE | Stock Option (right to buy) | Award | 87,900 | 87,900 | 01 Jan 2026 | Direct | |||
| Jennifer Schulte | CUBE | Common | Tax liability | -9% | -1,852 | 18,732 | 01 Jan 2026 | Direct | ||
| Jennifer Schulte | CUBE | Common | Award | 43.4% | 6,231 | 20,584 | 01 Jan 2026 | Direct | ||
| Jennifer Schulte | CUBE | Stock Option (right to buy) | Award | 21,689 | 21,689 | 01 Jan 2026 | Direct | |||
| Christopher P. Marr | CUBE | Common | Sale | -0.12% | $24,815 | $36.55 | -679 | 581,191 | 15 Dec 2025 | Direct |
| Christopher P. Marr | CUBE | Common | Sale | -7.46% | $1,715,109 | $36.55 | -46,925 | 581,870 | 12 Dec 2025 | Direct |
| Christopher P. Marr | CUBE | Common | Options Exercise | 16.2% | 87,604 | 628,795 | 12 Dec 2025 | Direct | ||
| Christopher P. Marr | CUBE | Stock Option (right to buy) | Options Exercise | -100% | -87,604 | 0 | 12 Dec 2025 | Direct | ||
| Timothy M. Martin | CUBE | Common | Options Exercise | 8.98% | 29,566 | 358,795 | 12 Dec 2025 | Direct | ||
| Timothy M. Martin | CUBE | Stock Option (right to buy) | Options Exercise | -100% | -29,566 | 0 | 12 Dec 2025 | Direct | ||
| Jennifer Schulte | CUBE | Phantom Shares | Award | 1.27% | 12.03 | 963 | 15 Oct 2025 | Direct | ||
| Timothy M. Martin | CUBE | Phantom Shares | Award | 1.26% | 279 | 22,356 | 15 Oct 2025 | Direct | ||
| Christopher P. Marr | CUBE | Phantom Shares | Award | 1.27% | 73 | 5,802 | 15 Oct 2025 | Direct | ||
| Christopher P. Marr | CUBE | Common | Gift | -1.87% | -10,132 | 531,059 | 12 Aug 2025 | Direct | ||
| Jennifer Schulte | CUBE | Phantom Shares | Award | 1.26% | 11.84 | 951 | 15 Jul 2025 | Direct | ||
| Christopher P. Marr | CUBE | Phantom Shares | Award | 1.25% | 71 | 5,729 | 15 Jul 2025 | Direct | ||
| Timothy M. Martin | CUBE | Phantom Shares | Award | 1.26% | 275 | 22,077 | 15 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.