Comparable stake leader
VANGUARD GROUP INC
SEC ownership of Curbline Properties Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002027317.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
08 Apr 2026
- Symbol
- CURB on NYSE
- Ownership evidence mix
- 13D/G, 13F, and 3/4/5
- Largest current holder
- VANGUARD GROUP INC
- Latest large-stake holder
- VANGUARD GROUP INC
- Latest evidence date
- 08 Apr 2026
- CIK
- 0002027317
- Location
- New York, NY
Ownership snapshot
2 signals
Issuer identity
2 identity fields
Ownership snapshot
Top shareholders of Curbline Properties Corp. (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 GROUP INC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
08 Apr 2026
13D/G
13F
3/4/5
Lead comparable stake: 14%
13D/G row: VANGUARD GROUP INC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 14%.
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 GROUP INC
14%
T. Rowe Price Investment Manageme...
13%
STATE STREET CORP
5.3%
FMR LLC
4%
Conor Fennerty
0.15%
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 GROUP INC |
13D/G
The Vanguard Group
|
14%
|
$343,053,172
14,793,151 shares
|
$0 | 31 Dec 2024 |
| T. Rowe Price Investment Management, Inc. |
13F
13D/G
Company
|
13%
from 13D/G
|
$337,101,000
13,070,983 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
5.3%
from 13D/G
|
$141,053,179
5,433,754 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13D/G
13F
Company
|
4%
|
$116,538,790
4,273,516 shares
|
-$34,172,746 | 31 Mar 2026 |
| Conor Fennerty |
3/4/5
EVP, CFO & Treasurer
|
0.15%
|
$4,440,923
159,688 shares
|
-$638,568 | 28 Feb 2026 |
| Christina M. Yarian |
3/4/5
SVP & Chief Accounting Officer
|
0.02%
|
$693,839
25,462 shares
|
— | 22 Feb 2026 |
| Lesley H. Solomon |
3/4/5
EVP & General Counsel
|
0.02%
|
$629,468
24,398 shares
|
— | 08 Apr 2026 |
| BlackRock, Inc. |
13F
Company
|
16%
|
$433,823,770
16,821,395 shares
|
— | 31 Mar 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: -$8,447,496.
Buys
$0
Insiders: 0
Sells
$8,447,496
Insiders: 2
Net
-$8,447,496
Shares: -351,412
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 351,412
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 123,412 | $0 | $3,309,828 | -$3,309,828 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 228,000 | $0 | $5,137,668 | -$5,137,668 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-12 of 12 reporting-owner rows connected to Curbline Properties Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
12
Largest current holder
Alexander Otto
Net 12M change
-$8,447,496
Latest report
11 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Alexander Otto | Director | $193,566,022 | Mixed | 18 Oct 2024 | ||
| David R. Lukes | President & CEO, Director | $18,476,989 | -$7,808,928 | -30% | Mixed | 11 May 2026 |
| Conor Fennerty | EVP, CFO & Treasurer | $4,440,923 | -$638,568 | -13% | Mixed | 28 Feb 2026 |
| John M. Cattonar | EVP & Chief Investment Officer | $3,976,851 | Mixed | 28 Feb 2026 | ||
| Barry A. Sholem | Director | $2,680,185 | Mixed | 15 Oct 2024 | ||
| Terrance R. Ahern | Director | $1,671,534 | Mixed | 15 Oct 2024 | ||
| Jane E. DeFlorio | Director | $1,035,008 | Mixed | 15 Oct 2024 | ||
| Linda B. Abraham | Director | $879,299 | Mixed | 15 Oct 2024 | ||
| Christina M. Yarian | SVP & Chief Accounting Officer | $693,839 | Mixed | 22 Feb 2026 | ||
| Lesley H. Solomon | EVP & General Counsel | $629,468 | Mixed | 08 Apr 2026 | ||
| Victor B. MacFarlane | Director | $425,472 | Mixed | 15 Oct 2024 | ||
| SITE Centers Corp. | 10%+ Owner | Mixed | 01 Oct 2024 |
Recent insider transactions for Curbline Properties Corp.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| David R. Lukes | CURB | Common Stock | Gift | 42,000 | 42,000 | 11 May 2026 | By Child in the Sarah Lukes 2025 Irrevocable Trust U/A dtd 08/07/2025 | |||
| David R. Lukes | CURB | Common Stock | Gift | 42,000 | 42,000 | 11 May 2026 | By Child in the Jacqueline Lukes 2025 Irrevocable Trust U/A dtd 08/07/2025 | |||
| David R. Lukes | CURB | Common Stock | Gift | 42,000 | 42,000 | 11 May 2026 | By Child in the Katherine Kensett Lukes 2025 Irrevocable Trust U/A dtd 08/07/2025 | |||
| David R. Lukes | CURB | Common Stock | Gift | -100% | -126,000 | 0 | 11 May 2026 | By Spouse in The Elizabeth G Lukes 2025 Revocable Trust U/A dtd 08/07/2025 | ||
| Lesley H. Solomon | CURB | Common Stock | Tax liability | -1.64% | -408 | 24,398 | 08 Apr 2026 | Direct | ||
| David R. Lukes | CURB | Common Stock | Sale | -14.2% | $2,244,595 | $26.83 | -83,663 | 506,597 | 16 Mar 2026 | Direct |
| David R. Lukes | CURB | Common Stock | Sale | -6.31% | $1,065,233 | $26.80 | -39,749 | 590,260 | 13 Mar 2026 | Direct |
| David R. Lukes | CURB | Common Stock | Tax liability | -9.33% | -77,816 | 756,009 | 28 Feb 2026 | Direct | ||
| Conor Fennerty | CURB | Common Stock | Tax liability | -10.9% | -19,562 | 159,688 | 28 Feb 2026 | Direct | ||
| John M. Cattonar | CURB | Common Stock | Tax liability | -6.32% | -9,320 | 138,138 | 28 Feb 2026 | Direct | ||
| Christina M. Yarian | CURB | Common Stock | Tax liability | -0.6% | -154 | 25,462 | 22 Feb 2026 | Direct | ||
| Christina M. Yarian | CURB | Common Stock | Award | 9.41% | 2,204 | 25,616 | 22 Feb 2026 | Direct | ||
| Lesley H. Solomon | CURB | Common Stock | Tax liability | -2.52% | -640 | 24,806 | 22 Feb 2026 | Direct | ||
| Lesley H. Solomon | CURB | Common Stock | Award | 17.7% | 3,828 | 25,446 | 22 Feb 2026 | Direct | ||
| David R. Lukes | CURB | Common Stock | Tax liability | -1.36% | -11,537 | 833,825 | 22 Feb 2026 | Direct | ||
| Conor Fennerty | CURB | Common Stock | Tax liability | -2.4% | -4,402 | 179,250 | 22 Feb 2026 | Direct | ||
| Conor Fennerty | CURB | Common Stock | Award | 5.49% | 9,564 | 183,652 | 22 Feb 2026 | Direct | ||
| John M. Cattonar | CURB | Common Stock | Tax liability | -1.27% | -1,893 | 147,458 | 22 Feb 2026 | Direct | ||
| David R. Lukes | CURB | Common Stock | Gift | 126,000 | 126,000 | 02 Feb 2026 | By Spouse in The Elizabeth G Lukes 2025 Revocable Trust U/A dtd 08/07/2025 | |||
| David R. Lukes | CURB | Common Stock | Gift | -16.7% | -126,000 | 630,009 | 02 Feb 2026 | Direct | ||
| Conor Fennerty | CURB | Common Stock | Tax liability | -1.4% | -2,472 | 174,088 | 15 Sep 2025 | Direct | ||
| John M. Cattonar | CURB | Common Stock | Tax liability | -1.16% | -1,746 | 149,351 | 15 Sep 2025 | Direct | ||
| David R. Lukes | CURB | Common Stock | Sale | -10.6% | $2,245,500 | $22.46 | -100,000 | 845,362 | 07 Aug 2025 | Direct |
| David R. Lukes | CURB | Common Stock | Sale | -9.57% | $2,253,600 | $22.54 | -100,000 | 945,362 | 06 Aug 2025 | Direct |
| Conor Fennerty | CURB | Common Stock | Sale | -13.7% | $638,568 | $22.81 | -28,000 | 176,560 | 27 Jun 2025 | Direct |
* marks a reported price that did not pass the local price check.