Curbline Properties CURB Insider Ownership

Updated Oct 10, 2026

Over the trailing 12 months, CURB insiders sold $46.89 million worth of shares (1.57Mn shares) in open-market trades, with no open-market purchases.

• Counted by insider, open-market selling of CURB stock in the past 12 months came from 3 insiders, with no insider buying.
• The largest open-market sales of CURB in the past 12 months were by Alexander Otto (Director), totaling $41.9 million (1.4Mn shares), most recently on September 14, 2026.
• Away from the open market, CURB insiders received 109.97K shares in stock awards, gave up 128.2K shares to cover taxes or exercise prices and gave away 252K shares as gifts over the last 12 months.
• Per Business Quant data, Curbline Properties insiders hold 7.75Mn shares in total based on their latest Form 4 filings, or 6.80% of the 114.04Mn shares outstanding; that total is down 15.81% from 9.21Mn shares at the end of Q2 2026 and down 17.07% from 9.35Mn shares at the end of Q3 2025.
• Of the 7.75Mn shares held by Curbline Properties insiders, 7.63Mn shares (98.37%) are held directly and 126K shares (1.63%) indirectly, through trusts, partnerships, family members and other entities.
• Holdings in Curbline Properties stock are reported by 11 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Curbline Properties' three biggest insider holders are Alexander Otto (Director, 6.55Mn shares), David R. Lukes (President & CEO, 632.6K shares) and John M. Cattonar (EVP & Chief Investment Officer, 180.72K shares), based on their latest Form 4 filings.
• Of the shares held by CURB insiders, 84.50% belong to Alexander Otto.
• Over the trailing 12 months, 6 insiders reported transactions in CURB stock across 27 Form 4 filings.
• The insider data for CURB reflects Form 4 filings through September 16, 2026.