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KILROY REALTY CORP

For the period ended Oct 22, 2026. Filed Oct 22, 2026.

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A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Oct 22, 2026 · Filed Oct 22, 2026

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KRC$35.82-1.2%Stored close · as of Nov 6, 2026
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Contents

EX-99.1 · Leases Executed

Leases Executed(1)

# of Leases · Square Feet · WeightedAverage LeaseTerm (Mo.) · TI/LCPer Sq.Ft. (2) · TI/LCPer Sq.Ft. /Year (2)
Quarter to Date · New · Renewal · New · Renewal · Total
2nd Gen Leasing1914335,401343,139678,54099$94.43$11.48
1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing8—124,271—124,271101$283.72$39.01
Total2714459,672343,139802,811
# of Leases · Square Feet · WeightedAverage LeaseTerm (Mo.) · TI/LCPer Sq.Ft. (2) · TI/LCPer Sq.Ft. /Year (2)
Year to DateNewRenewalNewRenewalTotal
2nd Gen Leasing5738699,845522,1451,221,99081$78.32$11.08
1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing16—414,248—414,248148$300.54$29.53
Total73381,114,093522,1451,636,238
Quarter to DateYear to Date
2nd Gen Leasing Change in RentsChanges inGAAP Rents (3)Changes in Cash Rents (4)Changes inGAAP Rents (3)Changes in Cash Rents (4)
Leases Signed On Space Vacant Less Than or Equal to 12 Months37.9%13.9%32.8%12.6%
All Leases Signed30.6%9.7%17.5%2.1%
Retention Rate CalculationsQuarter to DateYear to Date
Retention Rate78.3%45.0%
Retention Rate, including subtenants81.2%50.2%
Leases Signed But Not Yet Commenced (5)Period of Estimated Lease Commencement (6)
Q4 2026H1 2027H2 20272028 and BeyondTotal
Square Feet250,650315,277327,366509,2701,402,563
Annualized Base Rent (“ABR”)$14,153$17,359$16,741$52,448$100,701
ABR per Sq. Ft.$56.47$55.06$51.14$102.99$71.80
Net Leases78%
Gross Leases22%
Total ABR100%

(1)Includes 100% of consolidated property partnerships. Excludes leases with a lease term of less than one year (i.e. short-term leases). During thethree months ended September 30, 2026, the Company signed 11,880

square feet of new short-term leasing on vacant space. During thenine months ended September 30, 2026, the Company signed 122,169 square feet of short-term leases, comprised of 76,437 square feet of new

leasing on vacant space and 45,732 square feet of renewal leasing.

(2)Includes tenant improvements and third-party leasing commissions, and excludes tenant-funded tenant improvements and indirect leasing costs.

(3)Calculated as the change between the expiring GAAP rent and the new GAAP rent for the same space. When necessary, lease structures are modified (adjusted for net leases) for comparability. Space that was vacant

when the property was acquired is excluded from these calculations.

(4)Calculated as the change between the expiring cash rent and the new cash rent for the same space. When necessary, lease structures are modified (adjusted for net leases) for comparability. Space that was vacant

when the property was acquired is excluded from these calculations.

(5)Includes 1,041,888 square feet of new leasing on previously vacant space,144,798 square feet of non-stabilized development leasing, and 215,877 square feet that has been backfilled or re-leased to a subtenant as of

September 30, 2026, but has not yet commenced.

(6)Represents estimated achievement of revenue recognition for the associated lease agreements.

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