CURBLINE PROPERTIES 3Q26 QUARTERLY FINANCIAL SUPPLEMENT QUARTER ENDED September 30, 2026 Recent Acquisition Shoppes at Crescent Park, TAMPA, FLORIDA (Form 8-K)

CURBLINE PROPERTIES 3Q26 QUARTERLY FINANCIAL SUPPLEMENT QUARTER ENDED September 30, 2026 Recent Acquisition Shoppes at Crescent Park, TAMPA, FLORIDA

CURBLINE PROPERTIES COMPANY & PORTFOLIO OVERVIEW Curbline Properties is an owner and manager of convenience shopping centers positioned on the curbline of well-trafficked intersections and major vehicular corridors in suburban, high household income communities. $3.4B MARKET CAPITALIZATION 239 PROPERTIES 6.1M GLA THE CURBLINE PORTFOLIO $129K AVERAGE HOUSEHOLD INCOME TOP 5 MSAs by ABR ATLANTA 11% MIAMI 8% PHOENIX 7% HOUSTON 6% ORLANDO 5% THE CURBLINE PORTFOLIO SOUTHEAST 34% SOUTHWEST MOUNTAIN & TEXAS 27% MID-ATLANTIC 9% MIDWEST & NORTHEAST 17% WEST COAST 13% RETAILER MIX LOCAL 30% NATIONAL 70% PROPERTY COMPOSITION ANCHOR 4% SHOP 96% AVERAGE ASSET SIZE 26K SF CURBLINE PROPERTIES INVESTOR RELATIONS DEPARTMENT e: [email protected] w: ir.curbline.com 320 Park Avenue, 27th Floor, New York, NY 10022 3300 Enterprise Pkwy Beachwood, OH 44122 o: 216-755-6200 f: 216-274-9711 w: curbline.com • NYSE: CURB CURB LISTED NYSE

Curbline Properties Corp.

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New York, New York, October 22, 2026 - Curbline Properties Corp. (NYSE: CURB) (the "Company" or "Curbline"), an owner of convenience centers in suburban, high household income communities, announced today operating results for the quarter ended September 30, 2026. For the nine months ended September 30, 2026, net income attributable to Curbline was $17.9 million, or $0.16 per diluted share, as compared to net income of $30.3 million, or $0.28 per diluted share, in the year-ago period.

"Curbline's third quarter results represent a continuation of trends from the first half of the year with over $300 million of investments and capital raised. Importantly, the Company's SNO pipeline also began to ramp in the quarter with the majority of the leases expected to commence rent payment by March 2027. This operational tailwind, along with Curbline's higher full year investment target funded with liquidity on hand, is expected to generate compelling per share growth into the fourth quarter and into 2027," commented David R. Lukes, President and Chief Executive Officer. "Looking forward, we believe Curbline remains uniquely positioned for growth given its differentiated investment focus, the leasing economics of the Company's property type, and its balance sheet."

Results for the Third Quarter

Significant Third Quarter Activity and Recent Activity

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Significant Year to Date 2026 Activity

Key Quarterly Operating Results

2026 Guidance

The Company has updated its guidance for net income attributable to Curbline for 2026 to be from $0.25 to $0.29 per diluted share and raised its guidance for Operating FFO to be from $1.25 to $1.27 per diluted share. The Company does not include a projection of gains or losses on asset sales, certain transaction costs or debt extinguishment costs in guidance.

Reconciliation of Net Income Attributable to Curbline to FFO and Operating FFO estimates:

About Curbline Properties

Curbline Properties is an owner and manager of convenience shopping centers positioned on the curbline of well-trafficked intersections and major vehicular corridors in suburban, high household income communities. The Company is a self-managed real estate investment trust ("REIT") that is publicly traded under the ticker symbol "CURB" on the NYSE. Additional information about the Company is available at curbline.com. To be included in the Company's e-mail distributions for press releases and other investor news, please click here.

Conference Call and Supplemental Information

The Company will hold its quarterly conference call today at 8:00 a.m. Eastern Time. To participate with access to the slide presentation, please visit the Investor Relations portion of Curbline's website, ir.curbline.com, or for audio only, dial 833-461-5787 (U.S.) or 626-884-3620 (international) using meeting ID 527587845 at least ten minutes prior to the scheduled start of the call. The call will also be webcast and available in a listen-only mode on Curbline's website at ir.curbline.com. If you are unable to participate during the live call, a replay of the conference call will also be available at ir.curbline.com for future review through October 22, 2027. Copies of the Company's supplemental package and earnings slide presentation are available on the Company's website.

Non-GAAP Measures and Other Operational Metrics

Funds from Operations ("FFO") is a supplemental non-GAAP financial measure used as a standard in the real estate industry and is a widely accepted measure of REIT performance. The Company believes that both FFO and Operating FFO provide

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additional indicators of the financial performance of a REIT, more appropriately measure the core operations of the Company, and provide benchmarks to its peer group.

FFO is generally defined and calculated by the Company as net income attributable to Curbline (computed in accordance with Generally Accepted Accounting Principles in the United States ("GAAP")), adjusted to exclude (i) gains and losses from disposition of real estate property, which are presented net of taxes, (ii) impairment charges on real estate property, (iii) gains and losses from changes in control and (iv) certain non-cash items. These non-cash items principally include real property depreciation and amortization of intangibles net of depreciation allocated to non-controlling interests. The Company's calculation of FFO is consistent with the definition of FFO provided by NAREIT. The Company calculates Operating FFO as FFO excluding certain non-operating charges, income and gains/losses. Operating FFO is useful to investors as the Company removes non-comparable charges, income and gains/losses to analyze the results of its operations and assess performance of the core operating real estate portfolio. Other real estate companies may calculate FFO and Operating FFO in a different manner.

In calculating the expected range for or amount of net income attributable to Curbline to estimate projected FFO and Operating FFO for future periods, the Company does not include a projection of gains and losses from the disposition of real estate property, potential impairments and reserves of real estate property, debt extinguishment costs and certain transaction costs. Other real estate companies may calculate expected FFO and Operating FFO in a different manner.

The Company also uses net operating income ("NOI"), a non-GAAP financial measure, as a supplemental performance measure. NOI is calculated as property revenues less property-related expenses and excludes depreciation and amortization expense, interest income and expense and corporate level transactions. The Company believes NOI provides useful information to investors regarding the Company's financial condition and results of operations because it reflects only those income and expense items that are incurred at the property level and, when compared across periods, reflects the impact on operations from trends in occupancy rates, rental rates, operating costs and acquisition and disposition activity on an unleveraged basis.

The Company presents NOI information herein on a same-property basis ("SPNOI"). The Company defines SPNOI as property revenues less property-related expenses, which excludes depreciation and amortization expense, interest income and expense and corporate level transactions, as well as straight-line rental income and reimbursements and expenses, lease termination income, management fee expense and fair market value of leases. SPNOI only includes assets owned for the entirety of both comparable periods. Other real estate companies may calculate NOI and SPNOI in a different manner. The Company believes SPNOI provides investors with additional information regarding the operating performance of comparable assets because it excludes certain non-cash and non-comparable items as noted above.

FFO, Operating FFO, NOI and SPNOI do not represent cash generated from operating activities in accordance with GAAP, are not necessarily indicative of cash available to fund cash needs and should not be considered as alternatives to net income computed in accordance with GAAP, as indicators of the Company's operating performance or as alternatives to cash flow as a measure of liquidity. Reconciliations of these non-GAAP measures to their most directly comparable GAAP measures have been provided herein.

The Company calculates Cash Leasing Spreads by comparing the prior tenant's annual base rent in the final year of the prior lease to the executed tenant's annual base rent in the first year of the executed lease. Straight-Lined Leasing Spreads are calculated by comparing the prior tenant's average base rent over the prior lease term to the executed tenant's average base rent over the term of the executed lease. For both Cash and Straight-Lined Leasing Spreads, the reported calculation excludes first generation units and spaces vacant at the time of acquisition and includes all leases for spaces vacant greater than twelve months along with split and combination deals.