As of December 2025 Kilroy Realty has a market cap of โน440.85 Billion. This makes Kilroy Realty the world's 3103th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 10th, 2025 the market cap of Kilroy Realty was reported to be: