X0609 4 2026-10-14 0 0001025996 KILROY REALTY CORP NYSE: KRC 0001600298 Paratte A. Robert false 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 2026-10-14 4 A 0 434.8541 0 A 118693.7101 D Restricted Stock Units 2026-10-14 4 A 0 513.5867 0 A Common Stock 513.5867 62216.5443 D Restricted Stock Units 2026-10-14 4 A 0 486.9901 0 A Common Stock 486.9901 62703.5344 D Grant of restricted stock units in respect of dividend equivalent rights with respect to underlying restricted stock unit awards previously reported on Table I, which were granted pursuant to the Kilroy Realty 2006 Incentive Award Plan and the terms of the applicable award agreement. Crediting of restricted stock units in respect of dividend equivalent rights with respect to underlying restricted stock unit awards previously reported on Table II, which were granted pursuant to the Kilroy Realty 2006 Incentive Award Plan and the terms of the applicable award agreement. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. The reporting person was awarded performance units in 2024 covering a three-year performance period ending December 31, 2026. The reporting person previously reported the minimum number of units subject to the award eligible to vest based on 2024 performance. The number of units reported reflects the additional minimum number of units eligible to vest as a result of the crediting of restricted stock units in respect of dividend equivalent rights. The units remain subject to additional time-based vesting requirements. The reporting person was awarded performance units in 2025 covering a three-year performance period ending December 31, 2027. The reporting person previously reported the minimum number of units subject to the award eligible to vest based on 2025 performance. The number of units reported reflects the additional minimum number of units eligible to vest as a result of the crediting of restricted stock units in respect of dividend equivalent rights. The units remain subject to additional time-based vesting requirements. Executive Vice President, Chief Leasing Officer /s/ Lauren N. Stadler, as attorney-in-fact for A. Robert Paratte 2026-10-16