X0508 4 2025-10-31 0 0001025996 KILROY REALTY CORP NYSE: KRC 0001352772 Roth Heidi Rena C/O KILROY REALTY CORPORATION 12200 W. OLYMPIC BLVD., SUITE 200 LOS ANGELES CA 90064 0 1 0 0 See Remarks 0 Common stock, par value $0.01 per share 2025-10-31 4 S 0 3944 41.9857 D 69413.2766 D The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.9850 to $41.9925 inclusive. The reporting person undertakes to provide to Kilroy Realty Corporation, any security holder of Kilroy Realty Corporation, or staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Executive Vice President, Chief Administrative Officer /s/ Heidi R. Roth 2025-11-04