X0508 4 2026-02-02 0002027317 Curbline Properties Corp. CURB 0001434627 Lukes David R 320 PARK AVENUE NEW YORK NY 10022 true true false false President & CEO false Common Stock 2026-02-02 4 G false 126000 0 D 630009 D Common Stock 2026-03-13 4 S false 39749 26.799 D 590260 D Common Stock 2026-03-16 4 S false 83663 26.829 D 506597 D Common Stock 2026-02-02 4 G false 126000 0 A 126000 I By Spouse in The Elizabeth G Lukes 2025 Revocable Trust U/A dtd 08/07/2025 Gift to Spouse resulting in a change of beneficial ownership from direct to indirect of the gifted securities. The price reported in column 4 is a weighted average price.These shares were sold in multiple transactions at prices ranging from $26.75 to $26.89. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the Staff of the Securities and Exchange Commission, upon request, with full information regarding the number of shares sold at each separate price within this range. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.75 to $27.02. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the Staff of the Securities and Exchange Commission, upon request, with full information regarding the number of shares sold at each separate price within this range. Reflects indirect ownership by the Elizabeth G Lukes 2025 Revocable Trust U/A dtd 08/07/2025, for which Mr. Luke's spouse is the settlor, trustee and beneficiary. /s/ Jennifer Daubenspeck, Attorney-In-Fact 2026-03-17