Curbline Properties Corp.
US ˙ NYSE

SecurityCURB / Curbline Properties Corp.
InstitutionSei Investments Co
Latest Disclosed Ownership422,113 shares
Latest Disclosed Value $ 9,797,243
Sei Investments Co reports 8.80% decrease in ownership of CURB / Curbline Properties Corp.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 422,113 shares of Curbline Properties Corp. (US:CURB) valued at $9,797,243 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 462,844 shares of Curbline Properties Corp.. This represents a change in shares of -8.80% during the quarter. The current value of the position is $12,241,277 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F CURBLINE PPTYS COM 23128Q101 422,113 -40,731 -8.80 9,797 -5.08 0.0097
2025-11-13 2025-09-30 13F CURBLINE PPTYS COM 23128Q101 462,844 43,709 10.43 10,321 7.87 0.0111
2025-08-14 2025-06-30 13F CURBLINE PPTYS COM 23128Q101 419,135 -3,243 -0.77 9,569 -6.35 0.0111
2025-05-14 2025-03-31 13F/A-1 CURBLINE PPTYS COM 23128Q101 422,378 8,633 2.09 10,217 6.35 0.0132
2025-05-13 2025-03-31 13F CURBLINE PPTYS COM 23128Q101 413,765 20 9,608 0.0104
2025-02-11 2024-12-31 13F CURBLINE PPTYS COM 23128Q101 413,745 413,745 9,607 0.0123
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.