10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2025

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                  to                 

Commission File Number: 1-12675 (Kilroy Realty Corporation)

Commission File Number: 000-54005 (Kilroy Realty, L.P.)

KILROY REALTY CORPORATION

KILROY REALTY, L.P.

(Exact name of registrant as specified in its charter)

Kilroy Realty Corporation	Maryland	95-4598246
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
Kilroy Realty, L.P.	Delaware	95-4612685
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

12200 W. Olympic Boulevard, Suite 200, Los Angeles, California, 90064

(Address of principal executive offices) (Zip Code)

(310) 481-8400

(Registrant's telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:
Registrant	Title of each class	Name of each exchange on which registered	Ticker Symbol
Kilroy Realty Corporation	Common Stock, $.01 par value	New York Stock Exchange	KRC

Securities registered pursuant to Section 12(g) of the Act:
Registrant	Title of each class
Kilroy Realty, L.P.	Common Units Representing Limited Partnership Interests

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    

Kilroy Realty Corporation    Yes  ☑    No   ☐

Kilroy Realty, L.P.         Yes  ☑    No   ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    

Kilroy Realty Corporation     Yes  ☑    No   ☐

Kilroy Realty, L.P.         Yes  ☑    No   ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Kilroy Realty Corporation

Large accelerated filer ☑    Accelerated filer ☐

Non-accelerated filer ☐    Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Kilroy Realty, L.P.

Large accelerated filer ☐    Accelerated filer ☐

Non-accelerated filer ☑    Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    

Kilroy Realty Corporation Yes  ☐     No   ☑

Kilroy Realty, L.P. Yes  ☐     No   ☑

As of July 25, 2025, 118,294,328 shares of Kilroy Realty Corporation common stock, par value $.01 per share, were outstanding.

EXPLANATORY NOTE

This report combines the quarterly reports on Form 10-Q for the period ended June 30, 2025 of Kilroy Realty Corporation and Kilroy Realty, L.P. Unless stated otherwise or the context otherwise requires, references to “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” mean Kilroy Realty Corporation, a Maryland corporation, and its controlled and consolidated subsidiaries, and references to “Kilroy Realty, L.P.” or the “Operating Partnership” mean Kilroy Realty, L.P., a Delaware limited partnership and its controlled and consolidated subsidiaries.

The Company is a real estate investment trust, or REIT, and the general partner of the Operating Partnership. As of June 30, 2025, the Company owned an approximate 99.0% common general partnership interest in the Operating Partnership. The remaining approximate 1.0% common limited partnership interests are owned by non-affiliated investors. As the sole general partner of the Operating Partnership, the Company exercises exclusive and complete discretion over the Operating Partnership’s day-to-day management and control and can cause it to enter into certain major transactions, including acquisitions, dispositions, and refinancings and cause changes in its line of business, capital structure, and distribution policies.

There are a few differences between the Company and the Operating Partnership that are reflected in the disclosures in this Form 10-Q. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how the Company and the Operating Partnership operate as an interrelated, consolidated company. The Company is a REIT, the only material asset of which is the partnership interests it holds in the Operating Partnership. As a result, the Company generally does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing equity from time to time and guaranteeing certain debt of the Operating Partnership. The Company itself is not directly obligated under any indebtedness, but generally guarantees all of the debt of the Operating Partnership. The Operating Partnership owns substantially all of the assets of the Company either directly or through its subsidiaries, conducts the operations of the Company’s business, and is structured as a limited partnership with no publicly traded equity. Except for net proceeds from equity issuances by the Company, which the Company generally contributes to the Operating Partnership in exchange for units of partnership interest, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s incurrence of indebtedness, or through the issuance of units of partnership interest.

Noncontrolling interests, stockholders’ equity, and partners’ capital are the main areas of difference between the consolidated financial statements of the Company and those of the Operating Partnership. The common limited partnership interests in the Operating Partnership are accounted for as partners’ capital in the Operating Partnership’s financial statements and, to the extent not held by the Company, as noncontrolling interests in the Company’s financial statements. The differences between stockholders’ equity, partners’ capital, and noncontrolling interests result from the differences in the equity issued by the Company and the Operating Partnership.

We believe combining the quarterly reports on Form 10-Q of the Company and the Operating Partnership into this single report results in the following benefits:

•Combined reports better reflect how management and the analyst community view the business as a single operating unit;

•Combined reports enhance investors’ understanding of the Company and the Operating Partnership by enabling them to view the business as a whole and in the same manner as management;

•Combined reports are more efficient for the Company and the Operating Partnership and result in savings in time, effort, and expense; and

•Combined reports are more efficient for investors by reducing duplicative disclosure and providing a single document for their review.

To help investors understand the significant differences between the Company and the Operating Partnership, this report presents the following separate sections for each of the Company and the Operating Partnership:

•consolidated financial statements;

•the following notes to the consolidated financial statements:

◦Note 11, Net Income Available to Common Stockholders Per Share of the Company;

◦Note 12, Net Income Available to Common Unitholders Per Unit of the Operating Partnership;

◦Note 13, Supplemental Cash Flows Information of the Company; and

◦Note 14, Supplemental Cash Flows Information of the Operating Partnership;

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•“Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

◦—Liquidity and Capital Resources of the Company;” and

◦—Liquidity and Capital Resources of the Operating Partnership.”

This report also includes separate sections under “Part I – Financial Information, Item 4. Controls and Procedures” and separate Exhibit 31 and Exhibit 32 certifications for the Company and the Operating Partnership to establish that the Chief Executive Officer and the Chief Financial Officer of each entity have made the requisite certifications and that the Company and Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. §1350.

Available Information

We use our website (www.kilroyrealty.com) as a routine channel of distribution of company information, including press releases, presentations, and supplemental information, as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD. Accordingly, investors should monitor our website in addition to following press releases, SEC filings, and public conference calls and webcasts. Investors and others can receive notifications of new information posted on our investor relations website in real time by signing up for email alerts.

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KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

QUARTERLY REPORT FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2025

TABLE OF CONTENTS

		Page
	PART I – FINANCIAL INFORMATION
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION	1
	Consolidated Balance Sheets as of June 30, 2025 and December 31, 2024	1
	Consolidated Statements of Operations for the Three and Six Months ended June 30, 2025 and 2024	2
	Consolidated Statements of Equity for the Three and Six Months ended June 30, 2025 and 2024	3
	Consolidated Statements of Cash Flows for the Six Months ended June 30, 2025 and 2024	5
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.	6
	Consolidated Balance Sheets as of June 30, 2025 and December 31, 2024	6
	Consolidated Statements of Operations for the Three and Six Months ended June 30, 2025 and 2024	7
	Consolidated Statements of Capital for the Three and Six Months ended June 30, 2025 and 2024	8
	Consolidated Statements of Cash Flows for the Six Months ended June 30, 2025 and 2024	9
	Notes to Unaudited Consolidated Financial Statements	10
Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	25
Item 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	55
Item 4.	CONTROLS AND PROCEDURES (KILROY REALTY CORPORATION AND KILROY REALTY, L.P.)	55
	PART II – OTHER INFORMATION
Item 1.	LEGAL PROCEEDINGS	56
Item 1A.	RISK FACTORS	56
Item 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	56
Item 3.	DEFAULTS UPON SENIOR SECURITIES	56
Item 4.	MINE SAFETY DISCLOSURES	56
Item 5.	OTHER INFORMATION	56
Item 6.	EXHIBITS	57
SIGNATURES		58

PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION

KILROY REALTY CORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except share data)

	June 30, 2025		December 31, 2024
ASSETS
REAL ESTATE ASSETS:
Land and improvements	$	1,627,754	$	1,750,820
Buildings and improvements	8,427,405		8,598,751
Undeveloped land and construction in progress	2,364,938		2,309,624
Total real estate assets held for investment	12,420,097		12,659,195
Accumulated depreciation and amortization	(2,877,165)		(2,824,616)
Total real estate assets held for investment, net	9,542,932		9,834,579
REAL ESTATE AND OTHER ASSETS HELD FOR SALE, NET (Note 2)	255,795		—
CASH AND CASH EQUIVALENTS (Note 13)	193,129		165,690
MARKETABLE SECURITIES (Note 10)	31,629		27,965
CURRENT RECEIVABLES, NET	11,718		11,033
DEFERRED RENT RECEIVABLES, NET	436,964		451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,266		225,937
RIGHT OF USE GROUND LEASE ASSETS	128,674		129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 3)	58,725		51,935
TOTAL ASSETS	$	10,867,832	$	10,898,357
LIABILITIES AND EQUITY
LIABILITIES:
Secured debt, net (Notes 4 and 10)	$	595,212	$	598,199
Unsecured debt, net (Notes 4 and 10)	4,002,507		3,999,566
Accounts payable, accrued expenses, and other liabilities	273,600		285,011
Ground lease liabilities	128,030		128,422
Accrued dividends and distributions	64,985		64,850
Deferred revenue and acquisition-related intangible liabilities, net	131,606		142,437
Rents received in advance and tenant security deposits	73,561		71,003
Liabilities related to real estate assets held for sale (Note 2)	4,887		—
Total liabilities	5,274,388		5,289,488
COMMITMENTS AND CONTINGENCIES (Note 9)
EQUITY:
Stockholders’ Equity (Note 5):
Common stock, $.01 par value, 280,000,000 shares authorized, 118,294,328 and 118,046,674 shares issued and outstanding	1,183		1,181
Additional paid-in capital	5,216,320		5,209,653
Retained earnings	148,952		171,212
Total stockholders’ equity	5,366,455		5,382,046
Noncontrolling Interests (Notes 1 and 6):
Common units of the Operating Partnership	52,192		52,472
Noncontrolling interests in consolidated property partnerships	174,797		174,351
Total noncontrolling interests	226,989		226,823
Total equity	5,593,444		5,608,869
TOTAL LIABILITIES AND EQUITY	$	10,867,832	$	10,898,357

See accompanying notes to consolidated financial statements.

1

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except share and per share data)

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
REVENUES
Rental income (Note 8)	$	285,071	$	275,919	$	551,315	$	550,809
Other property income	4,821		4,812		9,421		8,503
Total revenues	289,892		280,731		560,736		559,312
EXPENSES
Property expenses	58,575		59,279		117,289		116,599
Real estate taxes	26,765		29,009		55,130		58,248
Ground leases	3,019		2,996		6,039		5,748
General and administrative expenses (Note 7)	18,475		18,824		35,376		36,116
Leasing costs	2,277		2,119		5,150		4,398
Depreciation and amortization	87,625		87,151		174,744		175,182
Total expenses	196,736		199,378		393,728		396,291
OTHER INCOME (EXPENSES)
Interest income	512		10,084		1,646		23,274
Interest expense (Note 4)	(30,844)		(36,763)		(61,992)		(75,634)
Other income (expense) (Note 1)	190		(127)		33		(414)
Gain on sale of depreciable operating property (Note 2)	16,554		—		16,554		—
Total other expenses	(13,588)		(26,806)		(43,759)		(52,774)
NET INCOME	79,568		54,547		123,249		110,247
Net income attributable to noncontrolling common units of the Operating Partnership	(663)		(458)		(1,038)		(960)
Net income attributable to noncontrolling interests in consolidated property partnerships	(10,456)		(4,878)		(14,754)		(10,156)
Total income attributable to noncontrolling interests	(11,119)		(5,336)		(15,792)		(11,116)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$	68,449	$	49,211	$	107,457	$	99,131
Net income available to common stockholders per share – basic (Note 11)	$	0.58	$	0.41	$	0.91	$	0.83
Net income available to common stockholders per share – diluted (Note 11)	$	0.57	$	0.41	$	0.90	$	0.83
Weighted average shares of common stock outstanding – basic (Note 11)	118,285,328		117,375,262		118,240,208		117,356,464
Weighted average shares of common stock outstanding – diluted (Note 11)	118,683,337		117,663,190		118,673,935		117,810,298

See accompanying notes to consolidated financial statements.

2

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited; in thousands, except share and per share/unit data)

	Common Stock							Total Stock- holders’ Equity		Noncontrolling Interests		Total Equity
	Number of Shares	Common Stock		Additional Paid-in Capital		Retained Earnings
BALANCE AS OF DECEMBER 31, 2024	118,046,674	$	1,181	$	5,209,653	$	171,212	$	5,382,046	$	226,823	$	5,608,869
Net income						39,008		39,008		4,673		43,681
Issuance of share-based compensation awards				1,476				1,476				1,476
Non-cash amortization of share-based compensation (Note 7)				5,176				5,176				5,176
Settlement of restricted stock units for shares of common stock	377,801	4		(4)				—				—
Repurchase of common stock and restricted stock units	(155,716)	(2)		(6,007)				(6,009)				(6,009)
Distributions to noncontrolling interests in consolidated property partnerships								—		(7,234)		(7,234)
Adjustment for noncontrolling interest				121				121		(121)		—
Dividends declared per share of common stock and common unit ($0.54 per share/unit)						(65,353)		(65,353)		(621)		(65,974)
BALANCE AS OF MARCH 31, 2025	118,268,759	1,183		5,210,415		144,867		5,356,465		223,520		5,579,985
Net income						68,449		68,449		11,119		79,568
Issuance of share-based compensation awards				477				477				477
Non-cash amortization of share-based compensation (Note 7)				5,670				5,670				5,670
Settlement of restricted stock units for shares of common stock	31,774	—		—				—				—
Repurchase of common stock and restricted stock units	(6,205)	—		(197)				(197)				(197)
Distributions to noncontrolling interests in consolidated property partnerships								—		(7,074)		(7,074)
Adjustment for noncontrolling interest				(45)				(45)		45		—
Dividends declared per common share and common unit ($0.54 per share/unit)						(64,364)		(64,364)		(621)		(64,985)
BALANCE AS OF JUNE 30, 2025	118,294,328	$	1,183	$	5,216,320	$	148,952	$	5,366,455	$	226,989	$	5,593,444

3

	Common Stock							Total Stock- holders’ Equity		Noncontrolling Interests		Total Equity
	Number of Shares	Common Stock		Additional Paid-in Capital		Retained Earnings
BALANCE AS OF DECEMBER 31, 2023	117,239,558	$	1,173	$	5,205,839	$	221,149	$	5,428,161	$	231,532	$	5,659,693
Net income						49,920		49,920		5,780		55,700
Issuance of share-based compensation awards				4,017				4,017				4,017
Non-cash amortization of share-based compensation				4,727				4,727				4,727
Settlement of restricted stock units for shares of common stock	217,496	2		(2)				—				—
Repurchase of common stock and restricted stock units	(90,649)	(1)		(5,897)				(5,898)				(5,898)
Distributions to noncontrolling interests in consolidated property partnerships								—		(6,898)		(6,898)
Adjustment for noncontrolling interest				69				69		(69)		—
Dividends declared per share of common stock and common unit ($0.54 per share/unit)						(67,989)		(67,989)		(621)		(68,610)
BALANCE AS OF MARCH 31, 2024	117,366,405	1,174		5,208,753		203,080		5,413,007		229,724		5,642,731
Net income						49,211		49,211		5,336		54,547
Issuance of share-based compensation awards				1,085				1,085				1,085
Non-cash amortization of share-based compensation				6,942				6,942				6,942
Settlement of restricted stock units for shares of common stock	19,395	—		—				—				—
Repurchase of common stock and restricted stock units	(569)	—		(20)				(20)				(20)
Distributions to noncontrolling interests in consolidated property partnerships								—		(5,911)		(5,911)
Adjustment for noncontrolling interest				(61)				(61)		61		—
Dividends declared per common share and common unit ($0.54 per share/unit)						(64,495)		(64,495)		(621)		(65,116)
BALANCE AS OF JUNE 30, 2024	117,385,231	$	1,174	$	5,216,699	$	187,796	$	5,405,669	$	228,589	$	5,634,258

See accompanying notes to consolidated financial statements.

4

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Six Months Ended June 30,
	2025		2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	123,249	$	110,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	171,978		172,049
Depreciation of non-real estate furniture, fixtures, and equipment	2,766		3,133
Revenues deemed uncollectible	820		3,889
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(7,458)		(9,327)
Straight-line rents, net	7,967		(2,755)
Non-cash amortization of net below market rents	(1,691)		(1,790)
Non-cash amortization of deferred financing costs and debt discounts	2,397		3,317
Non-cash amortization of share-based compensation awards	8,509		8,691
Amortization of right of use ground lease assets	548		528
Gain on sale of depreciable operating property	(16,554)		—
Net change in other operating assets	(15,347)		(13,097)
Net change in other operating liabilities	3,483		(18,323)
Net cash provided by operating activities	280,667		256,562
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development and redevelopment properties and undeveloped land	(81,743)		(180,571)
Expenditures for operating properties and other capital assets	(46,621)		(35,195)
Net proceeds received from dispositions (Note 2)	28,021		—
Maturity of certificates of deposit	—		256,581
Net cash (used in) provided by investing activities	(100,343)		40,815
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(14,324)		(12,825)
Dividends and distributions paid to common stockholders and common unitholders	(128,855)		(127,930)
Repurchase of common stock and restricted stock units	(6,206)		(5,918)
Financing costs	(407)		(17,517)
Principal payments and repayments of secured debt	(3,093)		(2,973)
Proceeds from the issuance of unsecured debt	—		395,516
Repayments of unsecured debt	—		(200,000)
Net cash (used in) provided by financing activities	(152,885)		28,353
Net increase in cash and cash equivalents and restricted cash	27,439		325,730
Cash and cash equivalents and restricted cash, beginning of period	165,690		510,163
Cash and cash equivalents and restricted cash, end of period	$	193,129	$	835,893

See accompanying notes to consolidated financial statements.

5

ITEM 1: FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.

KILROY REALTY, L.P.

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except unit data)

	June 30, 2025		December 31, 2024
ASSETS
REAL ESTATE ASSETS:
Land and improvements	$	1,627,754	$	1,750,820
Buildings and improvements	8,427,405		8,598,751
Undeveloped land and construction in progress	2,364,938		2,309,624
Total real estate assets held for investment	12,420,097		12,659,195
Accumulated depreciation and amortization	(2,877,165)		(2,824,616)
Total real estate assets held for investment, net	9,542,932		9,834,579
REAL ESTATE AND OTHER ASSETS HELD FOR SALE, NET (Note 2)	255,795		—
CASH AND CASH EQUIVALENTS (Note 14)	193,129		165,690
MARKETABLE SECURITIES (Note 10)	31,629		27,965
CURRENT RECEIVABLES, NET	11,718		11,033
DEFERRED RENT RECEIVABLES, NET	436,964		451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,266		225,937
RIGHT OF USE GROUND LEASE ASSETS	128,674		129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 3)	58,725		51,935
TOTAL ASSETS	$	10,867,832	$	10,898,357
LIABILITIES AND CAPITAL
LIABILITIES:
Secured debt, net (Notes 4 and 10)	$	595,212	$	598,199
Unsecured debt, net (Notes 4 and 10)	4,002,507		3,999,566
Accounts payable, accrued expenses, and other liabilities	273,600		285,011
Ground lease liabilities	128,030		128,422
Accrued distributions	64,985		64,850
Deferred revenue and acquisition-related intangible liabilities, net	131,606		142,437
Rents received in advance and tenant security deposits	73,561		71,003
Liabilities related to real estate assets held for sale (Note 2)	4,887		—
Total liabilities	5,274,388		5,289,488
COMMITMENTS AND CONTINGENCIES (Note 9)
CAPITAL:
Partner's Capital - Common units, 118,294,328 and 118,046,674 held by the general partner and 1,150,574 held by common limited partners issued and outstanding	5,418,647		5,434,518
Noncontrolling interests in consolidated property partnerships (Note 1)	174,797		174,351
Total capital	5,593,444		5,608,869
TOTAL LIABILITIES AND CAPITAL	$	10,867,832	$	10,898,357

See accompanying notes to consolidated financial statements.

6

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except unit and per unit data)

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
REVENUES
Rental income (Note 8)	$	285,071	$	275,919	$	551,315	$	550,809
Other property income	4,821		4,812		9,421		8,503
Total revenues	289,892		280,731		560,736		559,312
EXPENSES
Property expenses	58,575		59,279		117,289		116,599
Real estate taxes	26,765		29,009		55,130		58,248
Ground leases	3,019		2,996		6,039		5,748
General and administrative expenses (Note 7)	18,475		18,824		35,376		36,116
Leasing costs	2,277		2,119		5,150		4,398
Depreciation and amortization	87,625		87,151		174,744		175,182
Total expenses	196,736		199,378		393,728		396,291
OTHER INCOME (EXPENSES)
Interest income	512		10,084		1,646		23,274
Interest expense (Note 4)	(30,844)		(36,763)		(61,992)		(75,634)
Other income (expense) (Note 1)	190		(127)		33		(414)
Gain on sale of depreciable operating property (Note 2)	16,554		—		16,554		—
Total other expenses	(13,588)		(26,806)		(43,759)		(52,774)
NET INCOME	79,568		54,547		123,249		110,247
Net income attributable to noncontrolling interests in consolidated property partnerships	(10,456)		(4,878)		(14,754)		(10,156)
NET INCOME AVAILABLE TO COMMON UNITHOLDERS	$	69,112	$	49,669	$	108,495	$	100,091
Net income available to common unitholders per unit – basic (Note 12)	$	0.58	$	0.41	$	0.91	$	0.83
Net income available to common unitholders per unit – diluted (Note 12)	$	0.57	$	0.41	$	0.90	$	0.83
Weighted average common units outstanding – basic (Note 12)	119,435,902		118,525,836		119,390,782		118,507,038
Weighted average common units outstanding – diluted (Note 12)	119,833,911		118,813,764		119,824,509		118,960,872

See accompanying notes to consolidated financial statements.

7

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CAPITAL

(Unaudited; in thousands, except unit and per unit data)

	Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships
	Number of Common Units	Common Units				Total Capital
BALANCE AS OF DECEMBER 31, 2024	119,197,248	$	5,434,518	$	174,351	$	5,608,869
Net income		39,383		4,298		43,681
Issuance of share-based compensation awards		1,476				1,476
Non-cash amortization of share-based compensation (Note 7)		5,176				5,176
Settlement of restricted stock units	377,801	—				—
Repurchase of common units and restricted stock units	(155,716)	(6,009)				(6,009)
Distributions to noncontrolling interests in consolidated property partnerships				(7,234)		(7,234)
Distributions declared per common unit ($0.54 per unit)		(65,974)				(65,974)
BALANCE AS OF MARCH 31, 2025	119,419,333	5,408,570		171,415		5,579,985
Net income		69,112		10,456		79,568
Issuance of share-based compensation awards		477				477
Non-cash amortization of share-based compensation (Note 7)		5,670				5,670
Settlement of restricted stock units	31,774	—				—
Repurchase of common units and restricted stock units	(6,205)	(197)				(197)
Contributions from noncontrolling interests in consolidated property partnerships						—
Distributions to noncontrolling interests in consolidated property partnerships				(7,074)		(7,074)
Distributions declared per common unit ($0.54 per unit)		(64,985)				(64,985)
BALANCE AS OF JUNE 30, 2025	119,444,902	$	5,418,647	$	174,797	$	5,593,444

	Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships		Total Capital
	Number of Common Units	Common Units
BALANCE AS OF DECEMBER 31, 2023	118,390,132	$	5,481,436	$	178,257	$	5,659,693
Net income		50,422		5,278		55,700
Issuance of share-based compensation awards		4,017				4,017
Non-cash amortization of share-based compensation		4,727				4,727
Settlement of restricted stock units	217,496	—				—
Repurchase of common units and restricted stock units	(90,649)	(5,898)				(5,898)
Distributions to noncontrolling interests in consolidated property partnerships				(6,898)		(6,898)
Distributions declared per common unit ($0.54 per unit)		(68,610)				(68,610)
BALANCE AS OF MARCH 31, 2024	118,516,979	5,466,094		176,637		5,642,731
Net income		49,669		4,878		54,547
Issuance of share-based compensation awards		1,085				1,085
Non-cash amortization of share-based compensation		6,942				6,942
Settlement of restricted stock units	19,395	—				—
Repurchase of common units and restricted stock units	(569)	(20)				(20)
Distributions to noncontrolling interests in consolidated property partnerships				(5,911)		(5,911)
Distributions declared per common unit ($0.54 per unit)		(65,116)				(65,116)
BALANCE AS OF JUNE 30, 2024	118,535,805	$	5,458,654	$	175,604	$	5,634,258

See accompanying notes to consolidated financial statements.

8

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Six Months Ended June 30,
	2025		2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	123,249	$	110,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	171,978		172,049
Depreciation of non-real estate furniture, fixtures, and equipment	2,766		3,133
Revenues deemed uncollectible	820		3,889
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(7,458)		(9,327)
Straight-line rents, net	7,967		(2,755)
Non-cash amortization of net below market rents	(1,691)		(1,790)
Non-cash amortization of deferred financing costs and debt discounts	2,397		3,317
Non-cash amortization of share-based compensation awards	8,509		8,691
Amortization of right of use ground lease assets	548		528
Gain on sale of depreciable operating property	(16,554)		—
Net change in other operating assets	(15,347)		(13,097)
Net change in other operating liabilities	3,483		(18,323)
Net cash provided by operating activities	280,667		256,562
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development and redevelopment properties and undeveloped land	(81,743)		(180,571)
Expenditures for operating properties and other capital assets	(46,621)		(35,195)
Net proceeds received from dispositions (Note 2)	28,021		—
Maturity of certificates of deposit	—		256,581
Net cash (used in) provided by investing activities	(100,343)		40,815
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(14,324)		(12,825)
Distributions paid to common unitholders	(128,855)		(127,930)
Repurchase of common units and restricted stock units	(6,206)		(5,918)
Financing costs	(407)		(17,517)
Principal payments and repayments of secured debt	(3,093)		(2,973)
Proceeds from the issuance of unsecured debt	—		395,516
Repayments of unsecured debt	—		(200,000)
Net cash (used in) provided by financing activities	(152,885)		28,353
Net increase in cash and cash equivalents and restricted cash	27,439		325,730
Cash and cash equivalents and restricted cash, beginning of period	165,690		510,163
Cash and cash equivalents and restricted cash, end of period	$	193,129	$	835,893

See accompanying notes to consolidated financial statements.

9

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1.    Organization, Ownership, and Basis of Presentation

Kilroy Realty Corporation (the “Company”) is a self-administered real estate investment trust (“REIT”) active in premier office, life science, and mixed-use property types in the United States. The Company’s approach to modern business environments is designed to drive creativity and productivity for some of the world’s leading technology, entertainment, life science, and business services companies and we have been consistently recognized for our leadership in sustainability and building operations. The Company owns, develops, acquires, and manages real estate assets, consisting primarily of premier properties in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin, which are markets it believes have strategic advantages and strong barriers to entry. The Company qualifies as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). The Company’s common stock is publicly traded on the New York Stock Exchange (“NYSE”) under the ticker symbol “KRC.”

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the “Operating Partnership”) and conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context otherwise requires, the terms “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” refer to Kilroy Realty Corporation and its consolidated subsidiaries, including the Operating Partnership, and the term “Operating Partnership” refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees, and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, and real estate assets held for sale, if any. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs pursuant to a formal plan to change its use, the intended result of which is a higher economic return on the property. We define a property in the tenant improvement phase as a development or redevelopment property where the project has reached “cold shell condition” and is ready for tenant improvements, which may require additional major base building modifications before being placed in service. Projects in the tenant improvement phase are moved into our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the projects or phases of projects are placed in service.

Our stabilized portfolio of operating properties was comprised of the following properties at June 30, 2025:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied (1)
Stabilized Office Properties (2)	118	16,395,491	440	80.8	%

________________________

(1)Represents economic occupancy for space where we have achieved revenue recognition for the associated lease agreements.

(2)Includes stabilized life science and retail space.

	Number of Properties	Number of Units	2025 Average Occupancy
Stabilized Residential Properties	3	1,001	94.5	%

As of June 30, 2025, the following properties were excluded from our stabilized portfolio:

	Number of Properties / Projects	Actual / Estimated Rentable Square Feet (1)
Properties held for sale (2)	1	663,460
In-process development projects - tenant improvement	1	875,000
In-process redevelopment projects - tenant improvement	2	100,000

________________________

(1)For the property classified as held for sale, represents actual rentable square feet and consists of four buildings. For the in-process development and redevelopment projects in the tenant improvement phase, represents estimated rentable square feet upon completion.

(2)See Note 2 “Dispositions and Real Estate Held for Sale” for additional information.

Our stabilized portfolio also excludes our future development pipeline, which, as of June 30, 2025, was comprised of eight potential future development sites, representing approximately 64 gross acres of undeveloped land.

10

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

As of June 30, 2025, all of our properties and development and redevelopment projects, and all of our business was conducted in the state of California, with the exception of ten stabilized office properties and one future development project located in the state of Washington, and one stabilized office property and one future development project located in Austin, Texas. All of our properties, and development and redevelopment projects are 100% owned, excluding the following four office properties owned by the following three consolidated property partnerships:

Consolidated Property Partnership	Property Address	Ownership Interest (1)
100 First Street Member, LLC	100 1st Street, San Francisco, CA 94105	56%
303 Second Street Member, LLC	303 2nd Street, San Francisco, CA 94107	56%
Redwood City Partners, LLC	900 Jefferson Avenue, Redwood City, CA 94063	93%
	900 Middlefield Road, Redwood City, CA 94063

________________________

(1)The remaining interests in all three property partnerships were owned by unrelated third parties.

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 100 First Street Member, LLC (“100 First LLC”), 303 Second Street Member, LLC (“303 Second LLC”), Redwood City Partners, LLC (“Redwood LLC”), and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 100 First LLC, 303 Second LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of June 30, 2025, the Company owned an approximate 99.0% common general partnership interest in the Operating Partnership. The remaining approximate 1.0% common limited partnership interest in the Operating Partnership as of June 30, 2025 was owned by non-affiliated investors. Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. Generally, the number of common units held by the Company is equivalent to the number of outstanding shares of the Company’s common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company’s common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership’s Seventh Amended and Restated Agreement of Limited Partnership, as amended (the “Partnership Agreement”). With the exception of the Operating Partnership and our consolidated property partnerships, all of our subsidiaries are wholly-owned.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2024.

Commencing January 1, 2025, the Company began presenting a new line item, Other income (expense), which includes tax expenses, acquisition and disposition expenses, and income or expenses related to environmental and sustainability initiatives, which were previously included in General and administrative expenses. Historical amounts for General and administrative expenses and Other income (expense) have been revised to conform with the current period presentation.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary, as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights. At June 30, 2025, the consolidated financial statements of the Company included two VIEs in addition to the Operating Partnership: 100 First LLC and 303 Second LLC. At June 30, 2025, the Company and the Operating Partnership were determined to be the primary beneficiaries of these two VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. As of June 30, 2025, the two VIEs’ total assets,

11

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

liabilities, and noncontrolling interests included on our consolidated balance sheet were approximately $403.1 million (of which $326.5 million related to real estate held for investment), approximately $17.7 million, and approximately $169.9 million, respectively. Revenues, income, and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle their contractual obligations, which primarily consist of operating expenses, capital expenditures, and required distributions.

At December 31, 2024, the consolidated financial statements of the Company included three VIEs in addition to the Operating Partnership: 100 First LLC, 303 Second LLC, and one entity established during the third quarter of 2024 to facilitate a potential future Section 1031 Exchange. At December 31, 2024, the Company and the Operating Partnership were determined to be the primary beneficiaries of these three VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. At December 31, 2024, the impact of consolidating the VIEs increased the Company’s total assets, liabilities, and noncontrolling interests on our consolidated balance sheet by approximately $435.5 million (of which $357.3 million related to real estate held for investment), approximately $18.0 million, and approximately $169.4 million, respectively.

Recently Issued Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 “Income Taxes (Topic 740): Improvements to Tax Disclosures.” The ASU is effective for annual periods beginning after December 15, 2024. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03 “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” The ASU is effective for annual periods beginning after December 15, 2026. The Company is currently evaluating whether the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

12

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2.    Dispositions and Real Estate Held for Sale

Operating Property Dispositions

The following table summarizes the one operating property sold during the six months ended June 30, 2025:

Property	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (in millions) (1)
501 Santa Monica Boulevard	June	1	78,509	$	40.0

___________________________

(1)Represents gross sales price before the impact of broker commissions, closing costs, and purchase price credits.

The total gain on the sale of the operating property sold during the six months ended June 30, 2025 was $16.6 million.    

Real Estate Assets Held for Sale

During the three months ended June 30, 2025, we classified a four-building office property in Silicon Valley as Held for Sale. The property totals 663,460 square feet and is expected to close late in the third quarter for a gross sales price of $365.0 million.

The major classes of assets and liabilities of the property classified as held for sale as of June 30, 2025 were as follows:

Real estate and other assets held for sale, net	(in thousands)
Land and improvements	$	118,514
Buildings and improvements	194,357
Total real estate held for sale	312,871
Accumulated depreciation and amortization	(72,526)
Total real estate held for sale, net	240,345
Current receivables, net	36
Deferred rent receivables, net	6,525
Deferred leasing costs and acquisition-related intangibles, net	7,782
Prepaid expenses and other assets, net	1,107
Total real estate and other assets held for sale, net	$	255,795
Liabilities related to real estate assets held for sale
Accounts payable, accrued expenses, and other liabilities	$	591
Deferred revenue and acquisition-related intangible liabilities, net	1,091
Rents received in advance and tenant security deposits	3,205
Total liabilities related to real estate assets held for sale	$	4,887

13

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

3.    Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at June 30, 2025 and December 31, 2024:

	June 30, 2025		December 31, 2024
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	25,300	$	26,316
Prepaid expenses, net	18,369		8,470
Deferred financing costs, net (1)	10,921		12,692
Other assets	4,135		4,457
Total prepaid expenses and other assets, net	$	58,725	$	51,935

________________________

(1)Refer to Note 4 “Secured and Unsecured Debt of the Operating Partnership” for a discussion of the deferred financing costs for the unsecured revolving credit facility.

4.    Secured and Unsecured Debt of the Operating Partnership

The Company generally guarantees all of the Operating Partnership’s unsecured debt obligations, including the unsecured revolving credit facility, the unsecured term loan facility, and all of the unsecured senior notes.

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of June 30, 2025 and December 31, 2024:

	Unsecured Revolving Credit Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.65		%	5.69		%
Facility fee-annual rate (3)	0.250%
Unamortized deferred financing costs (3)	$	10,921		$	12,692
Maturity date (4)	July 31, 2028

________________________

(1)Remaining and total borrowing capacity are further reduced by the amount of our outstanding letters of credit which total approximately $5.2 million as of June 30, 2025 and December 31, 2024. We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $500.0 million under an accordion feature pursuant to the terms of the unsecured revolving credit facility.

(2)Our unsecured revolving credit facility interest rate was calculated using the Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% (“Adjusted SOFR”) and a margin of 1.100% based on our credit rating as of June 30, 2025 and December 31, 2024. We may be entitled to a temporary 0.01% reduction in the interest rate provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions.

(3)Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024. These costs are included in Prepaid expenses and other assets, net on our consolidated balance sheets, which remain to be amortized through the maturity date of our unsecured revolving credit facility.

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

The Operating Partnership intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, including to finance development and redevelopment expenditures, to fund potential acquisitions, to repay long-term debt, and to supplement cash balances in response to market conditions.

14

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following table summarizes the balance and terms of our 2024 Term Loan Facility as of June 30, 2025:

	2024 Term Loan Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings (1)	$	200,000		$	200,000
Interest rate (2)	5.62		%	5.70		%
Unamortized deferred financing costs (3)	$	419		$	1,229
Maturity date (4)	October 3, 2025

____________________

(1)We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $130.0 million as of June 30, 2025 and December 31, 2024, under an accordion feature pursuant to the terms of the 2024 Term Loan Facility.

(2)Our 2024 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 1.200% based on our credit rating as of June 30, 2025 and December 31, 2024.

(3)We incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024, which remain to be amortized through the maturity date of the 2024 Term Loan Facility.

(4)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

Financial Covenants and Restrictions

The unsecured revolving credit facility, unsecured term loan facility, unsecured senior notes, including the private placement notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a maximum ratio of secured debt to total asset value, a minimum unsecured debt ratio, and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full principal balance of the associated debt becoming immediately due and payable. We were in compliance with all of our financial covenants as of June 30, 2025.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of June 30, 2025:

Year	(in thousands)
Remaining 2025	$	603,153
2026	401,317
2027	249,125
2028	400,000
2029	475,000
2030	500,000
Thereafter	2,000,000
Total aggregate principal value	4,628,595
Less: unamortized net discounts and deferred financing costs (1)	(30,876)
Total debt, net	$	4,597,719

________________________ 

(1)Includes $23.1 million of unamortized deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt, and $7.7 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in Prepaid expenses and other assets, net on our consolidated balance sheets.

Capitalized Interest

The following table sets forth gross interest expense and capitalized interest for the three and six months ended June 30, 2025 and 2024. The interest expense capitalized was recorded as a cost of development and redevelopment and increased the carrying value of undeveloped land and construction in progress currently under construction.

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Gross interest expense	$	52,177	$	57,278	$	103,873	$	115,956
Capitalized interest	(21,333)		(20,515)		(41,881)		(40,322)
Interest expense	$	30,844	$	36,763	$	61,992	$	75,634

15

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

5.    Stockholders’ Equity of the Company

At-The-Market Stock Offering Program

Under our at-the-market (“ATM”) stock offering program (the “2024 ATM Program”), which commenced in March 2024, we may offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with the 2024 ATM Program, the Company may also, at its discretion, enter into forward equity sale agreements. The use of forward equity sale agreements allows the Company to lock in a share price on the sale of shares of our common stock at the time an agreement is executed, but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date. The Company did not have any outstanding forward equity sale agreements to be settled at June 30, 2025. Since commencement of the 2024 ATM Program, we have not completed any sales of common stock.

Share Repurchase Program

Under our current share repurchase program, which commenced in February 2024 (the “Share Repurchase Program”), we are authorized to repurchase shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price, and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. Since commencement of the Share Repurchase Program, we have not completed any common stock repurchases.

6.    Noncontrolling Interests on the Company’s Consolidated Financial Statements

Common Units of the Operating Partnership

The Company owned an approximate 99.0% common general partnership interest in the Operating Partnership as of June 30, 2025 and December 31, 2024. The remaining approximate 1.0% common limited partnership interest as of June 30, 2025 and December 31, 2024 was owned by non-affiliated investors in the form of noncontrolling common units. There were 1,150,574 common units outstanding held by these investors as of June 30, 2025 and December 31, 2024.

The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $0.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $40.1 million and $46.8 million as of June 30, 2025 and December 31, 2024, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is generally expected that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

16

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

7.    Share-Based Compensation

Share-Based Incentive Compensation Plan

As of June 30, 2025, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). The Company has a currently effective registration statement registering 12.6 million shares of our common stock for possible issuance under our 2006 Plan. As of June 30, 2025, approximately 1.9 million shares were available for grant under the 2006 Plan. The calculation of shares available for grant is presented after taking into account a reserve for a sufficient number of shares to cover the vesting and payment of 2006 Plan awards that were outstanding on that date, including performance-based vesting awards at (i) levels actually achieved for the performance conditions (as defined below) for which the performance period has been completed, and (ii) at maximum levels for the other performance and market conditions (as defined below) for awards still in a performance period.

2025 Share-Based Compensation Grants

In February 2025, the Executive Compensation Committee of the Company’s Board of Directors awarded 535,398 restricted stock units to certain officers of the Company under the 2006 Plan, which included 308,671 RSUs (at the target level of performance) that are subject to time, market, and/or performance-based vesting requirements (the “2025 Performance-Based RSUs”) and 226,727 RSUs that are subject to time-based vesting requirements (the “2025 Time-Based RSUs”). Each RSU granted is entitled to earn dividend equivalents in the form of RSUs that vest upon vesting of the underlying RSU award.

2025 Performance-Based RSU Grant

The 2025 Performance-Based RSUs are scheduled to vest at the end of a three year period (consisting of calendar years 2025-2027. A target number of 2025 Performance-Based RSUs were awarded, and the final number of 2025 Performance-Based RSUs that vest (which may be more or less than the target number) will be based upon (i) during the first calendar year of the three year performance measurement period, the achievement of pre-set FFO per share goals that applies to 100% of the Performance-Based RSUs awarded (the “FFO Performance Condition”), and (ii) a performance measure that applies to 50% of the award based upon a measure of the Company’s average net debt to EBITDAre ratio for the three year performance period (the “Net Debt to EBITDAre Ratio Performance Condition”), and a market measure that applies to the other 50% of the award based upon the relative ranking of the Company’s total stockholder return for the three year performance period compared to the total stockholder returns of an established comparison group of companies over the same period (the “Market Condition”). The 2025 Performance-Based RSUs are also subject to a three year service vesting provision (the “service vesting condition”) and are scheduled to cliff vest on the date the final vesting percentage is determined following the end of the three year performance period under the awards. The number of 2025 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2025 Performance-Based RSUs granted based upon the levels of achievement for the FFO Performance Condition, the Net Debt to EBITDAre Ratio Performance Condition, the Market Condition, and the extent to which the service vesting condition is satisfied. The estimate of the number of 2025 Performance-Based RSUs earned is evaluated quarterly during the performance period based on our estimate for each of the performance conditions measured against the applicable goals.

Compensation expense for the 2025 Performance-Based RSUs is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service period. During the three and six months ended June 30, 2025, we recognized $0.8 million and $1.2 million of compensation expense, respectively, for the 2025 Performance-Based RSUs assuming the 2025 FFO Performance Condition is met at 100% of target level of achievement and the 2025 Net Debt to EBITDAre Ratio Performance Condition is met at 100% of the target level of achievement. In the event we achieve a lower level of performance or fail to meet the FFO Performance Condition, we would reverse a portion or all of the $0.8 million and $1.2 million of compensation expense.

Each 2025 Performance-Based RSU represents the right to receive one share of our common stock in the future subject to, and as modified by, the Company’s level of achievement of the applicable performance and market conditions. The fair value of the portion of the award subject to the Net Debt to EBITDAre Ratio Performance Condition was calculated using the closing price of the Company’s common stock on the valuation date noted below. The fair value of the portion of the award subject to the Market Condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in the following grant date fair value per share.

17

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

	Fair Value Assumptions
Valuation date	February 14, 2025
Fair value per share on valuation date (1)	$37.76
Expected share price volatility	38.0%
Risk-free interest rate	4.35%

________________________ 

(1)For one participant, the fair value per share on the valuation date for their 2025 Performance-Based RSUs is $38.93.

The computation of expected volatility was based on a blend of the historical volatility of our shares of common stock over a period of twice the remaining performance period as of the grant date and implied volatility data based on the observed pricing of six month publicly-traded options on shares of our common stock. The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury STRIP securities in effect at February 14, 2025.

The fair value of the 2025 Performance-Based RSU grant as of the valuation date noted above, based on a target level of achievement, was $11.2 million. For the three and six months ended June 30, 2025, we recorded compensation expense based upon the grant date fair value per share for each component multiplied by the estimated number of RSUs to be earned.

2025 Time-Based RSU Grants

The 2025 Time-Based RSUs are scheduled to vest in three equal annual installments beginning on January 5, 2026 through January 5, 2028. Compensation expense for the 2025 Time-Based RSUs is recognized on a straight-line basis over the requisite service period, which is generally the explicit service period. Each 2025 Time-Based RSU represents the right to receive one share of our common stock in the future, subject to continued employment through the applicable vesting date, unless accelerated upon separation of employment, provided certain conditions are met. The total grant date fair value of the 2025 Time-Based RSU awards was $7.9 million, which was based on the $34.91 closing share price of the Company’s common stock on the NYSE on the February 14, 2025 grant date.

2024 and 2023 Performance-Based RSUs

Consistent with the 2025 Performance-Based RSU grant discussed above, the final number of 2024 and 2023 Performance-Based RSUs that vest will be based upon (i) the FFO Performance Condition that applies to 100% of the Performance-Based RSUs awarded as determined at the end of the first calendar year of the performance measurement period, and (ii) the Net Debt to EBITDA Ratio Performance Condition that applies to 50% of the award and the Market Condition that applies to the other 50% of the award, both of which are based on the full three-year performance measurement period. The 2024 FFO Performance Condition was achieved at 175% of the target level of achievement for one participant and 150% for all other participants. The 2023 FFO Performance Condition was achieved at 150% of the target level of achievement for all participants.

Compensation cost for the 2024 Performance-Based RSUs for the three and six months ended June 30, 2025 assumes the 2024 Net Debt to EBITDA Ratio Performance Condition is met at 158% of the target level of achievement for one participant and 139% for all other participants. Compensation cost for the 2023 Performance-Based RSUs for the three and six months ended June 30, 2025 assumes the 2023 Net Debt to EBITDA Ratio Performance Condition is met at 150% of the target level of achievement.

Share-Based Compensation Cost Recorded During the Period

The total compensation cost for all share-based compensation programs was $5.7 million and $6.9 million for the three months ended June 30, 2025 and 2024, respectively, and $10.8 million and $11.7 million for the six months ended June 30, 2025 and 2024, respectively. Of the total share-based compensation costs, $1.1 million and $2.3 million were capitalized as part of real estate assets for the three and six months ended June 30, 2025, respectively, and $1.6 million and $3.0 million was capitalized as part of real estate assets for the three and six months ended June 30, 2024, respectively. As of June 30, 2025, there was approximately $33.4 million of total unrecognized compensation cost related to nonvested RSUs granted under share-based compensation arrangements. Such amount is based in part upon the estimated future outcome of the performance metrics as of June 30, 2025, and the actual compensation cost ultimately recognized could increase or decrease from this estimate based upon actual performance results. These costs are expected to be recognized over a weighted-average period of 2.0 years. The remaining compensation cost related to these nonvested RSU awards had been recognized in periods prior to June 30, 2025.

18

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

8.    Rental Income and Future Minimum Rent

Our rental income is primarily comprised of payments defined under leases and generally are subject to scheduled fixed increases. Additionally, rental income includes variable payments for tenant reimbursements of property-related expenses and payments based on a percentage of tenant sales.

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability recoveries or reserves for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Fixed lease payments	$	236,910	$	226,469	$	457,925	$	456,784
Variable lease payments	48,086		49,456		94,507		97,914
Net collectability recoveries (reserves) (1)	75		(6)		(1,117)		(3,889)
Total rental income	$	285,071	$	275,919	$	551,315	$	550,809

_____________________

(1)Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants, including recognition of deferred rent balances associated with tenants moved to / restored from a cash basis of revenue recognition and allowances for uncollectible receivables.

We have operating leases with tenants that expire at various dates through 2055 and may be subject to scheduled fixed increases and future renewal options. Generally, the leases grant tenants renewal options. Leases also provide for additional rents based on certain operating expenses. Future contractual minimum rent under operating leases, which includes amounts contractually due from leases that are on a cash basis of reporting due to creditworthiness considerations, as of June 30, 2025 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2025	$	389,469
2026	768,433
2027	746,063
2028	701,989
2029	609,393
2030	527,275
Thereafter	1,117,031
Total (1)	$	4,859,653

_____________________

(1)Excludes residential leases, leases at properties classified as held for sale, and leases with a term of one year or less.

19

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

9.    Commitments and Contingencies

Development and Construction Commitments

As of June 30, 2025, we had commitments of approximately $158.0 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating and development and redevelopment properties.

Environmental Matters and Asset Retirement Obligations

As of June 30, 2025 and December 31, 2024, we had the following accrued environmental remediation liabilities in connection with certain of our in-process and future development projects, and the following asset retirement obligations associated with certain of our stabilized portfolio properties and in-process and future development projects:

	June 30, 2025		December 31, 2024
	(in thousands)
Environmental liabilities	$	70,163	$	72,003
Asset retirement obligations	$	4,440	$	4,634

10.    Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value

The only assets we record at fair value on a recurring basis in our consolidated financial statements are the marketable securities related to our Deferred Compensation Plan. The following table sets forth the fair value of our Deferred Compensation Plan assets as of June 30, 2025 and December 31, 2024:

	Fair Value (Level 1) (1)
	June 30, 2025		December 31, 2024
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	31,629	$	27,965

________________________

(1)    Based on quoted prices in active markets for identical securities.

(2)    The Deferred Compensation Plan assets are held in a limited rabbi trust.

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of June 30, 2025 and December 31, 2024:

	June 30, 2025				December 31, 2024
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Liabilities
Secured debt, net	$	595,212	$	581,153	$	598,199	$	569,061
Unsecured debt, net	$	4,002,507	$	3,750,933	$	3,999,566	$	3,681,914

Fair value is calculated using Level 2 inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

20

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

11.    Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common stockholders	$	68,221	$	48,391	$	107,017	$	97,512
Denominator:
Basic weighted average vested shares outstanding	118,285,328		117,375,262		118,240,208		117,356,464
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested shares and common stock equivalents outstanding	118,683,337		117,663,190		118,673,935		117,810,298
Basic earnings per share:
Net income available to common stockholders per share	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per share:
Net income available to common stockholders per share	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including RSUs, are considered in our diluted earnings per share calculation for the three and six months ended June 30, 2025 and 2024. Certain market measure-based RSUs are not included in dilutive securities for the three and six months ended June 30, 2025 and 2024, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the six months ended June 30, 2024, as they were anti-dilutive. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

21

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

12.    Net Income Available to Common Unitholders Per Unit of the Operating Partnership

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	69,112	$	49,669	$	108,495	$	100,091
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common unitholders	$	68,884	$	48,849	$	108,055	$	98,472
Denominator:
Basic weighted average vested units outstanding	119,435,902		118,525,836		119,390,782		118,507,038
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested units and common unit equivalents outstanding	119,833,911		118,813,764		119,824,509		118,960,872
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

    Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including RSUs, are considered in our diluted earnings per share calculation for the three and six months ended June 30, 2025 and 2024. Certain market measure-based RSUs are not included in dilutive securities for the three and six months ended June 30, 2025 and 2024, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the six months ended June 30, 2024, as they were anti-dilutive. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

22

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

13.    Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,985	$	65,118

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

14.    Supplemental Cash Flows Information of the Operating Partnership

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,985	$	65,118

23

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

15.    Segments

Operating segments are defined as components of an enterprise that engage in business activities from which they may earn revenues and incur expenses and about which discrete financial information is available that is evaluated regularly by the Chief Operating Decision Maker (“CODM”). The CODM decides how resources are allocated and assesses performance on a recurring basis, at least quarterly. Our CODM is our CEO, who evaluates the operating performance and financial results of our consolidated portfolio based on Net Income through the monthly operations meetings.

We conduct our business in one operating segment and therefore have one reportable segment. Asset information by segment is not reported because the Company does not use this measure to assess performance.

Our reportable segment derives its revenues primarily from rental revenue and other related income through the leasing of office space to tenants. We recognize revenue from base rent (fixed lease payments), additional rent (variable lease payments, which consist of amounts due from tenants for common area maintenance, real estate taxes, and other recoverable costs), parking, and other lease-related revenue.

The following table presents Net Income for the three and six months June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
REVENUES:
Rental income	$	285,071	$	275,919	$	551,315	$	550,809
Other property income	4,821		4,812		9,421		8,503
Total revenues	289,892		280,731		560,736		559,312
EXPENSES:
Property expenses	58,575		59,279		117,289		116,599
Real estate taxes	26,765		29,009		55,130		58,248
Ground leases	3,019		2,996		6,039		5,748
General and administrative expenses	18,475		18,824		35,376		36,116
Leasing costs	2,277		2,119		5,150		4,398
Depreciation and amortization	87,625		87,151		174,744		175,182
Total expenses	196,736		199,378		393,728		396,291
OTHER INCOME (EXPENSES):
Interest income	512		10,084		1,646		23,274
Interest expense	(30,844)		(36,763)		(61,992)		(75,634)
Other income (expense)	190		(127)		33		(414)
Gain on sale of depreciable operating property	16,554		—		16,554		—
Total other expenses	(13,588)		(26,806)		(43,759)		(52,774)
NET INCOME	$	79,568	$	54,547	$	123,249	$	110,247

24

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion relates to our consolidated financial statements and should be read in conjunction with the financial statements and notes thereto appearing elsewhere in this report. The results of operations discussion is combined for the Company and the Operating Partnership because there are no material differences in the results of operations between the two reporting entities.

Forward-Looking Statements

Statements contained in this “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” that are not historical facts may be forward-looking statements. Forward-looking statements include, among other things, statements or information concerning our plans, objectives, capital resources, portfolio performance, results of operations, projected future occupancy and rental rates, lease expirations, debt maturities, potential investments, strategies such as capital recycling, development and redevelopment activity, projected construction costs, projected construction commencement and completion dates, projected square footage of space that could be constructed on undeveloped land that we own, projected rentable square footage of or number of units in properties under construction or in the development pipeline, anticipated proceeds from capital recycling activity or other dispositions and anticipated dates of those activities or dispositions, projected increases in the value of properties, dispositions, future executive incentive compensation, pending, potential or proposed acquisitions, plans to grow our Net Operating Income and FFO, our ability to re-lease properties at or above current market rates, anticipated market conditions and demographics and other forward-looking financial data, as well as the discussion in “—Factors That May Influence Future Results of Operations,” “—Liquidity and Capital Resource of the Company,” and “—Liquidity and Capital Resources of the Operating Partnership.” Forward-looking statements can be identified by the use of words such as “believes,” “expects,” “projects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “pro forma,” “estimates”, or “anticipates” and the negative of these words and phrases and similar expressions that do not relate to historical matters. Forward-looking statements are based on our current expectations, beliefs, and assumptions, and are not guarantees of future performance. Forward-looking statements are inherently subject to uncertainties, risks, changes in circumstances, trends, and factors that are difficult to predict, many of which are outside of our control. Accordingly, actual performance, results, and events may vary materially from those indicated or implied in the forward-looking statements, and you should not rely on the forward-looking statements as predictions of future performance, results, or events. Numerous factors could cause actual future performance, results, and events to differ materially from those indicated in the forward-looking statements, including, among others: global market and general economic conditions, including actual and potential tariffs and periods of heightened inflation, and their effect on our liquidity and financial conditions and those of our tenants; adverse economic or real estate conditions generally, and specifically, in the states of California, Texas, and Washington; risks associated with our investment in real estate assets, which are illiquid, and with trends in the real estate industry; defaults on or non-renewal of leases by tenants; any significant downturn in tenants’ businesses, including bankruptcy, lack of liquidity or lack of funding, and the impact labor disruptions or strikes, such as episodic strikes in the entertainment industry, may have on our tenants’ businesses; our ability to re-lease property at or above current market rates; reduced demand for office space, including as a result of remote working and flexible working arrangements that allow work from remote locations other than an employer’s office premises; costs to comply with government regulations, including environmental remediation; the availability of cash for distribution and debt service, and exposure to risk of default under debt obligations; increases in interest rates and our ability to manage interest rate exposure; changes in interest rates and the availability of financing on attractive terms or at all, which may adversely impact our future interest expense and our ability to pursue development, redevelopment, and acquisition opportunities and refinance existing debt; a decline in real estate asset valuations, which may limit our ability to dispose of assets at attractive prices, or obtain or maintain debt financing, and which may result in write-offs or impairment charges; significant competition, which may decrease the occupancy and rental rates of properties; potential losses that may not be covered by insurance; the ability to successfully complete acquisitions and dispositions on announced terms; the ability to successfully operate acquired, developed, and redeveloped properties; the ability to successfully complete development and redevelopment projects on schedule and within budgeted amounts; delays or refusals in obtaining all necessary zoning, land use, and other required entitlements, governmental permits and authorizations for our development and redevelopment properties; increases in anticipated capital expenditures, tenant improvement, and/or leasing costs; defaults on leases for land on which some of our properties are located; adverse changes to, or enactment or implementations of, tax laws or other applicable laws, regulations, or legislation, as well as business and consumer reactions to such changes; risks associated with joint venture investments, including our lack of sole decision-making authority, our reliance on co-venturers’ financial condition and disputes between us and our co-venturers; environmental uncertainties and risks related to natural disasters; risks associated with climate change and our sustainability strategies, and our ability to achieve our sustainability goals; and our ability to maintain our status as a REIT. The factors included in this report are not exhaustive and additional factors could adversely affect our business and financial performance. For a discussion of additional factors that

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could materially adversely affect the Company’s and the Operating Partnership’s business and financial performance, see the discussion below, as well as in “Part I, Item 1A. Risk Factors” and “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2024, and their respective other filings with the SEC. All forward-looking statements are based on currently available information and speak only as of the dates on which they are made. We assume no obligation to update any forward-looking statement that becomes untrue because of subsequent events, new information, or otherwise, except to the extent we are required to do so in connection with our ongoing requirements under federal securities laws.

Overview and Background

We are a self-administered REIT active in premier office, life science, and mixed-use property types in the United States. We own, develop, acquire, and manage real estate assets, consisting primarily of premier properties in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin, which are markets we believe have strategic advantages and strong barriers to entry. We own our interests in all of our real estate assets through the Operating Partnership and conduct substantially all of our operations through the Operating Partnership. We owned an approximate 99.0% common general partnership interest in the Operating Partnership as of June 30, 2025 and December 31, 2024. As of June 30, 2025, all of our properties are held in fee except for the fourteen office buildings that are held subject to long-term ground leases.

Stabilized Portfolio Information

As of June 30, 2025, our stabilized portfolio was comprised of 118 office, life science, and mixed-use buildings encompassing an aggregate of approximately 16.4 million rentable square feet and 1,001 residential units. Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, and real estate assets held for sale, if any. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs pursuant to a formal plan to change its use, the intended result of which is a higher economic return on the property. We define a property in the tenant improvement phase as a development or redevelopment property where the project has reached “cold shell condition” and is ready for tenant improvements, which may require additional major base building modifications before being placed in service. Projects in the tenant improvement phase are moved into our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the projects or phases of projects are placed in service.

As of June 30, 2025, the following properties were excluded from our stabilized portfolio:

	Number of Properties / Projects	Actual / Estimated Rentable Square Feet (1)
Properties held for sale (2)	1	663,460
In-process development projects - tenant improvement	1	875,000
In-process redevelopment projects - tenant improvement	2	100,000

________________________

(1)For the property classified as held for sale, represents actual rentable square feet and consists of four buildings. For the in-process development and redevelopment projects in the tenant improvement phase, represents estimated rentable square feet upon completion.

(2)See Note 2 “Dispositions and Real Estate Held for Sale” to our consolidated financial statements included in this report for additional information.

Our stabilized portfolio also excludes our future development pipeline, which, as of June 30, 2025, was comprised of eight potential development sites, representing approximately 64 gross acres of undeveloped land, on which we believe we could develop more than 6.0 million rentable square feet of office space and approximately 1,750 residential units.

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The following table reconciles the changes in the rentable square feet in our stabilized office portfolio of operating properties from June 30, 2024 to June 30, 2025:

	Number of Buildings	Rentable Square Feet
Total as of June 30, 2024 (1)	121	17,040,239
Acquisitions	2	103,731
Dispositions and Properties Held for Sale	(5)	(741,969)
Remeasurement	—	(6,510)
Total as of June 30, 2025 (1)	118	16,395,491

________________________

(1)Includes four properties owned by consolidated property partnerships (see Note 1 “Organization, Ownership, and Basis of Presentation” to our consolidated financial statements included in this report for additional information).

Occupancy Information

The following table sets forth certain information regarding our stabilized portfolio as of the end of the period presented:

	6/30/2025				3/31/2025
Region	Number of Buildings	Rentable Square Feet	Occupancy		Number of Buildings	Rentable Square Feet	Occupancy
Los Angeles	52	4,261,793	74.4	%	53	4,340,302	72.7	%
San Diego	26	2,871,241	85.0	%	26	2,869,598	87.5	%
San Francisco Bay Area	29	5,507,135	84.8	%	33	6,170,595	86.8	%
Seattle	10	2,996,347	78.5	%	10	2,996,347	78.6	%
Austin	1	758,975	79.9	%	1	758,975	76.4	%
Total Stabilized Portfolio	118	16,395,491	80.8	%	123	17,135,817	81.4	%

The following table sets forth the average occupancy of certain property groups within our stabilized portfolio for the periods presented:

	Average Occupancy
	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Stabilized Office Portfolio (1)	80.8	%	83.8	%	81.1	%	84.1	%
Same Property Portfolio (1)(2)	80.5	%	83.2	%	80.8	%	83.5	%
Residential Portfolio (3)	93.8	%	92.8	%	94.5	%	92.9	%

________________________

(1)Occupancy percentages reported are calculated as the average of the daily ending occupancy percentages for the period presented. Represents economic occupancy for space where we have achieved revenue recognition for the associated lease agreements.

(2)Occupancy percentages reported are based on properties owned and stabilized as of January 1, 2024 and still owned and stabilized as of June 30, 2025, and exclude our residential portfolio. See discussion under “Results of Operations” for additional information.

(3)Our residential portfolio consists of our 200-unit residential tower and 193-unit Jardine property in Hollywood, California and 608 residential units at our One Paseo mixed-use property in Del Mar, California.

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Significant Tenants

The following table sets forth information about our 20 largest tenants based upon annualized base rental revenues, as defined below, as of June 30, 2025:

	Tenant Name (1)	Region	Annualized Base Rental Revenue (in thousands) (2)		Rentable Square Feet	Percentage of Total Annualized Base Rental Revenue (2)		Percentage of Total Rentable Square Feet		Year(s) of Significant Lease Expiration(s) (3)	Weighted Average Remaining Lease Term (Years)
1	Global technology company	Seattle / San Diego	$	44,851	849,826	5.9	%	5.2	%	2032 - 2033 / 2037	8.1
2	Cruise LLC	San Francisco Bay Area	35,449		374,618	4.7	%	2.3	%	2031	6.4
3	Stripe, Inc.	San Francisco Bay Area	33,110		425,687	4.4	%	2.6	%	2034	9.0
4	Adobe Systems, Inc.	San Francisco Bay Area / Seattle	27,897		537,799	3.7	%	3.3	%	2027 / 2031	5.9
5	Salesforce, Inc.	San Francisco Bay Area / Seattle	24,706		472,988	3.3	%	2.9	%	2029 - 2030 / 2032	4.9
6	Okta, Inc.	San Francisco Bay Area	24,206		293,001	3.2	%	1.8	%	2028	3.3
7	DoorDash, Inc.	San Francisco Bay Area	23,842		236,759	3.2	%	1.4	%	2032	6.6
8	Netflix, Inc.	Los Angeles	21,854		361,388	2.9	%	2.2	%	2032	7.1
9	Cytokinetics, Inc.	San Francisco Bay Area	18,167		234,892	2.4	%	1.4	%	2033	8.3
10	Box, Inc.	San Francisco Bay Area	16,853		287,680	2.2	%	1.8	%	2028	3.0
11	Neurocrine Biosciences, Inc. (4)	San Diego	16,365		299,064	2.2	%	1.8	%	2025 / 2029 / 2031	5.2
12	DIRECTV, LLC (5)	Los Angeles	16,085		532,956	2.1	%	3.3	%	2026 - 2027	2.2
13	Tandem Diabetes Care, Inc.	San Diego	15,884		181,949	2.1	%	1.1	%	2035	9.8
14	Synopsys, Inc.	San Francisco Bay Area	15,492		342,891	2.1	%	2.1	%	2030	5.2
15	Viacom International, Inc.	Los Angeles	13,718		220,330	1.8	%	1.3	%	2028	3.5
16	Indeed, Inc.	Austin CBD	13,430		330,394	1.8	%	2.0	%	2034	9.5
17	Sony Interactive Entertainment, LLC	San Francisco Bay Area	13,059		127,760	1.7	%	0.8	%	2030	4.8
18	Amazon.com	Seattle	12,921		284,307	1.7	%	1.7	%	2030	4.6
19	Nektar Therapeutics, Inc.	San Francisco Bay Area	12,297		135,974	1.6	%	0.8	%	2030	4.6
20	Riot Games, Inc. (6)	Los Angeles	12,234		197,676	1.6	%	1.2	%	2026 / 2031	3.2
	Total		$	412,420	6,727,939	54.6	%	41.0	%		5.9

________________________

(1)Includes subsidiaries of the tenant listed. Excludes tenants at properties classified as held for sale.

(2)Annualized base rental revenue is calculated as the annualized monthly contractual rents from existing tenants, including the impact of straight-lined rent escalations and the amortization of free rent periods and excluding the impact of the following: amortization of deferred revenue related to tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases, and expense reimbursement revenue. Includes 100% of the annualized base rental revenues of consolidated property partnerships.

(3)Significant lease expirations include those greater than 25,000 rentable square feet.

(4)The 2025 lease expiration represents 26,043 rentable square feet that expired on June 30, 2025.

(5)The 2026 lease expiration represents 49,255 rentable square feet that expires on September 30, 2026.

(6)The 2026 lease expiration represents 110,834 rentable square feet that expires on November 30, 2026.

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Factors That May Influence Future Results of Operations

Leasing Activity and Changes in Rental Rates

The amount of net rental income generated by our properties depends principally on our ability to maintain the occupancy rates of currently leased space and to lease currently available space, newly developed or redeveloped properties, newly acquired properties with vacant space, and space available from unscheduled lease terminations. The amount of rental income we generate also depends on our ability to maintain or increase rental rates at our properties. Negative trends in one or more of these factors could adversely affect our rental income in future periods. The following tables set forth certain information regarding leasing activity during the three and six months ended June 30, 2025:

Leases Executed (1)(2)

Quarter to Date	Number of Leases		Rentable Square Feet			Weighted Average Lease Term (in months)	TI / LC per Sq. Ft. (3)		TI / LC per Sq. Ft. / Year (3)		Changes in Rents (4)		Changes in Cash Rents (5)
	New	Renewal	New	Renewal	Total
2nd Gen Leasing (6)	17	12	161,845	120,634	282,479	54	$	46.69	$	10.38	(11.2)	%	(15.2)	%
1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (7)	5	—	63,464	—	63,464	139	$	147.86	$	12.76
Total	22	12	225,309	120,634	345,943
	Number of Leases		Rentable Square Feet			Weighted Average Lease Term (in months)	TI / LC per Sq. Ft. (3)		TI / LC per Sq. Ft. / Year (3)		Changes in Rents (4)		Changes in Cash Rents (5)
Year to Date	New	Renewal	New	Renewal	Total
2nd Gen Leasing (6)	35	26	276,425	208,435	484,860	59	$	48.75	$	9.91	(13.1)	%	(18.5)	%
1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (7)	8	—	105,272	—	105,272	111	$	146.57	$	15.85
Total	43	26	381,697	208,435	590,132

Retention Rate Calculations (8)	Quarter to Date		Year to Date
Retention Rate	32.5	%	25.2	%
Retention Rate, including subtenants (9)	35.0	%	34.4	%

________________________

(1)Includes 100% of consolidated property partnerships. Excludes leases with a lease term of less than one year.

(2)During the three months ended June 30, 2025, 13 new leases totaling 123,963 rentable square feet were signed and commenced. During the six months ended June 30, 2025, 40 new leases totaling 241,827 rentable square feet were signed and commenced.

(3)Includes tenant improvements and third-party leasing commissions. Amounts exclude tenant-funded tenant improvements and indirect leasing costs.

(4)Calculated as the change between the expiring GAAP rent and the new GAAP rent for the same space. Space that was vacant when the property was acquired is excluded from our change in rents calculations to provide a more meaningful market comparison.

(5)Calculated as the change between the expiring cash rent and the new cash rent for the same space. Space that was vacant when the property was acquired is excluded from our change in rents calculations to provide a more meaningful market comparison.

(6)Represents leases executed at properties in the stabilized portfolio during the period, excluding leases with a lease term of less than one year. Excludes leases executed at space not previously leased at recently completed development projects that have been added to the stabilized portfolio and at space in the stabilized portfolio for which we are incurring significant non-recurring capital expenditures to reposition and is expected to result in additional revenue generated when re-leased. Tenant improvement and leasing commission capital expenditures for projects classified as Major Repositioning are captured in 2nd Gen Capital Expenditures.

(7)Represents leases executed at space not previously leased, recently completed development projects that have been added to the stabilized portfolio, at space in the stabilized portfolio for which we are incurring significant non-recurring capital expenditures to reposition and is expected to result in additional revenue generated when re-leased, and at projects in our development and redevelopment portfolios.

(8)Calculated as the percentage of square footage renewed by existing tenants at lease expiration or termination divided by the square footage of space renewed by existing tenants and lease expirations during the period.

(9)Represents the retention rate, inclusive of leases with subtenants where the Company does not expect to experience significant downtime in occupancy between leases.

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Lease Expirations(1)(2)

The following tables set forth certain information regarding our scheduled lease expirations for our stabilized portfolio, excluding our residential properties, for the remainder of 2025 and the next five years and by region for the remainder of 2025 and in 2026:

Year of Lease Expiration	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (in thousands) (3)		% of Total Annualized Base Rent (3)		Annualized Base Rent per Sq. Ft. (3)
Month-to-Month	20	19,020	N/A		N/A		N/A		N/A
Remainder of 2025 (4)	38	321,100	2.4	%	$	16,980	2.2	%	$	52.88
2026 (4)	69	1,303,220	10.0	%	60,747		8.1	%	46.61
2027 (4)	72	1,004,126	7.7	%	39,109		5.1	%	38.95
2028	64	1,169,196	8.9	%	72,687		9.6	%	62.17
2029	52	1,261,850	9.6	%	68,648		9.1	%	54.40
2030	68	1,690,170	12.9	%	99,332		13.1	%	58.77
Total	363	6,749,662	51.5	%	$	357,503	47.2	%	$	52.97

Year	Region	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (in thousands) (3)		% of Total Annualized Base Rent (3)		Annualized Rent per Sq. Ft. (3)
2025 (4)	Los Angeles	23	67,982	0.5	%	$	2,817	0.4	%	$	41.44
	San Diego	6	60,485	0.5	%	4,042		0.5	%	66.82
	San Francisco Bay Area	6	93,381	0.6	%	6,332		0.8	%	67.81
	Seattle	3	99,252	0.8	%	3,789		0.5	%	38.17
	Austin	—	—	—	%	—		—	%	—
	Total	38	321,100	2.4	%	$	16,980	2.2	%	$	52.88
2026 (4)	Los Angeles	31	532,611	4.1	%	$	20,487	2.7	%	$	38.46
	San Diego	11	158,231	1.2	%	8,648		1.1	%	54.66
	San Francisco Bay Area	13	316,514	2.4	%	20,241		2.8	%	63.95
	Seattle	14	295,864	2.3	%	11,371		1.5	%	38.43
	Austin	—	—	—	%	—		—	%	—
	Total	69	1,303,220	10.0	%	$	60,747	8.1	%	$	46.61

________________________ 

(1)Represents all in-place leases as of June 30, 2025, except intercompany leases.

(2)Includes 100% of annualized base rent of consolidated property partnerships.

(3)Represents annualized monthly contractual rents from existing tenants, including the impact of straight-lined rent escalations and the amortization of free rent periods and excluding the impact of the following: amortization of deferred revenue related to tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases, and expense reimbursement revenue. Additionally, the underlying leases contain various expense structures including full service gross, modified gross, and triple net. Amounts represent percentage of total portfolio annualized contractual base rental revenue. For additional information on tenant improvement and leasing commission costs incurred by the Company for the current reporting period, please see further discussion under the caption “Leases Executed.”

(4)Adjusting for leases that have been backfilled or renewed by a subtenant as of June 30, 2025 but not yet commenced, the 2025, 2026, and 2027 expirations would be reduced by 90,492, 1,272, and 5,875 square feet, respectively.

In addition to the 3.2 million rentable square feet, or 19.2%, of unoccupied space in our stabilized portfolio as of June 30, 2025, leases representing approximately 12.4% of the occupied square footage of our stabilized portfolio are scheduled to expire during the remainder of 2025 and in 2026. The leases scheduled to expire during the remainder of 2025 and in 2026 represent approximately 1.6 million rentable square feet, or 10.3% of our total annualized base rental revenue. Adjusting for leases that have been backfilled or renewed by a subtenant as of June 30, 2025 but not yet commenced, the remaining 2025, 2026, and 2027 expirations would be 230,608, 1,301,948, and 998,251 square feet, respectively.

Our rental rates and occupancy are impacted by general economic conditions, including the pace of regional economic growth and access to capital. Therefore, we cannot guarantee that leases will be renewed or that available space will be re-leased at rental rates equal to or above the current market rates.

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Sublease Space

Of our occupied space as of June 30, 2025, approximately 2.0 million rentable square feet, or 12.1% of the square footage in our stabilized portfolio, was available for sublease, primarily in the San Francisco Bay Area, in addition to the rentable square feet currently subleased. Of the approximately 2.0 million rentable square feet available for sublease as of June 30, 2025, approximately 18,663 rentable square feet representing one lease is scheduled to expire in 2025 and approximately 117,369 rentable square feet representing two leases are scheduled to expire in 2026.

Capital Recycling Program

We continuously evaluate opportunities for the potential disposition of non-core properties and undeveloped land in our portfolio, or the formation of strategic ventures, with the intent of using the proceeds generated to acquire new operating and development properties, to finance development and redevelopment expenditures, to repay long-term debt, and for other general corporate purposes. We continue to evaluate strategic opportunities and remain a disciplined buyer of core, value-add, and strategic operating properties. We historically have focused on markets populated by knowledge and creative-based tenants in a variety of industries, including technology, entertainment, healthcare, life sciences, and business services. As part of our capital recycling strategy, we may attempt to enter into transactions intended to qualify as like-kind exchanges pursuant to Section 1031 of the Code (“Section 1031 Exchanges”), and other tax deferred transaction structures, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further discussion of our capital recycling activities.

As of June 30, 2025, we had one operating property, comprised of four buildings, classified as held for sale, with an expected sales price of $365.0 million. The sale of this property is expected to close late in the third quarter of 2025. The timing of any potential future disposition or strategic venture transactions will depend on market conditions and other factors, including, but not limited to, our capital needs, the availability of financing for potential buyers (which has been and may continue to be constrained due to current economic and market conditions), and our ability to absorb or defer some or all of the taxable gains on the sales. We cannot assure that we will dispose of any additional properties, enter into any additional strategic ventures, or that we will be able to effect a Section 1031 Exchange or be able to use other tax deferred structures in connection with our strategy. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further information.

In connection with our capital recycling strategy, we may have one or more potential acquisitions of properties and/or undeveloped land under consideration that are in varying stages of negotiation and due diligence review, or under contract, at any point in time. However, we cannot guarantee that we will enter into any agreements to acquire properties or undeveloped land, or that the potential acquisitions contemplated by any agreements we may enter into in the future will be completed. In addition, acquisitions are subject to various risks and uncertainties, and we may be unable to complete an acquisition after making a nonrefundable deposit or incurring acquisition-related costs.

Development and Redevelopment Programs

We believe that a portion of our long-term future growth will indirectly continue to come from the completion of our in-process development and redevelopment projects and, subject to market conditions, from identifying new redevelopment opportunities and executing on our future development pipeline. Our future development pipeline may also expand in the future through targeted acquisitions of development opportunities on the West Coast and in Austin, Texas, subject to market conditions.

We have a proactive planning process by which we continually evaluate the size, timing, costs, and scope of our development and redevelopment programs and, as necessary, scale activity to reflect the economic conditions and the real estate fundamentals that exist in our submarkets. We expect to execute on our development and redevelopment programs with prudence and will be pursuing opportunities with attractive economic returns in strategic locations with proximity to public transportation or transportation access, retail amenities, and in markets with strong fundamentals and visible demand. We generally plan to develop projects in phases, as appropriate, and we favor starting projects with significant pre-leasing activity.

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In-Process Development - Tenant Improvement

As of June 30, 2025, we had one development project in the tenant improvement phase:

•Kilroy Oyster Point (Phase 2), South San Francisco, California. In June 2021, we commenced construction on Phase 2 of this 39-acre life science campus situated on the waterfront in South San Francisco and progressed the property to the tenant improvement phase during the first quarter of 2025. The second phase encompasses approximately 875,000 square feet of office and life science space across three buildings with a total estimated investment of $1.0 billion. We expect this property to be added to the stabilized portfolio upon the completion of the 12-month lease up period which is expected to end in the first quarter of 2026.

In-Process Redevelopment - Tenant Improvement

As of June 30, 2025, we had two redevelopment projects in the tenant improvement phase:

•4690 Executive Drive, University Towne Center, San Diego, California. In March 2022, we began the phased redevelopment of this property and completed base building components and moved the building to the tenant improvement phase during the third quarter of 2024. This project is comprised of approximately 52,000 square feet of life science space with a total estimated investment of $30.0 million, inclusive of the depreciated basis of the building. We expect this property to be added to the stabilized portfolio upon the completion of the 12-month lease up period which is expected to end in the third quarter of 2025. We executed one lease this quarter for one floor of the building, bringing the project to 47% leased.

•4400 Bohannon Drive, Menlo Park, California. In December 2022, we began the redevelopment of this property in the Other Peninsula submarket and completed base building components and moved the building to the tenant improvement phase during the third quarter of 2024. This project is comprised of approximately 48,000 square feet of life science space with a total estimated investment of $55.0 million, inclusive of the depreciated basis of the building. We expect this property to be added to the stabilized portfolio upon the completion of the 12-month lease up period which is expected to end in the third quarter of 2025.

Future Development Pipeline

As of June 30, 2025, our future development pipeline included eight future projects located in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin with an aggregate cost basis of approximately $1.5 billion, at which we believe we could develop more than 6.0 million rentable square feet of office space and approximately 1,750 residential units.

The following table sets forth information about our future development pipeline:

Future Development Pipeline	Location	Approx. Developable Square Feet / Residential Units (1)	Total Costs as of 6/30/2025 ($ in millions) (2)
Los Angeles
1633 26th Street (3)	West Los Angeles	190,000	$	15.1
San Diego
Santa Fe Summit (3)(4)	56 Corridor	600,000 - 650,000	116.3
2045 Pacific Highway	Little Italy / Point Loma	275,000	61.1
Kilroy East Village	East Village	1,100 units	68.0
San Francisco Bay Area
Kilroy Oyster Point - Phases 3 and 4	South San Francisco	875,000 - 1,000,000	243.4
Flower Mart	San Francisco CBD	2,300,000	683.6
Seattle
SIX0	Lake Union / Denny Regrade	925,000 and 650 units	201.4
Austin
Stadium Tower	Stadium District / Domain	493,000	75.8
TOTAL:			$	1,464.7

________________________

(1)Project scope, including the estimated developable square feet or number of residential units, could change materially from estimates provided due to one or more of the following: significant changes in the economy, market conditions, tenant requirements and demands, construction costs, new supply, regulatory and entitlement processes, or project design.

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(2)Represents costs incurred, net of municipal bonds proceeds received related to public infrastructure improvements, including accrued liabilities in accordance with GAAP, as of June 30, 2025.

(3)Subject to a signed agreement and non-refundable deposit as of the date of this filing. Both development sites are anticipated to close upon receipt of entitlements, which is likely to occur in 2026.

(4)Approximately five acres of the 22-acre future development site is under contract.

Fluctuations in our development activities could cause fluctuations in the average development asset balances qualifying for interest and other carrying cost and internal cost capitalization in future periods. A slowdown in development activities could result in fewer projects qualifying for interest capitalization under GAAP, resulting in higher interest expense. The following table sets forth our capitalized interest and internal overhead cost capitalization in our stabilized portfolio:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Capitalized Interest
Average Qualifying Costs	$	1,914,978	$	1,863,652	$	1,890,610	$	1,819,653
Capitalized Interest	$	21,333	$	20,515	$	41,881	$	40,322
Capitalized Internal Overhead Costs
Development & Redevelopment Projects	$	1,840	$	3,067	$	4,107	$	5,942
Capital Improvement Projects	$	1,967	$	2,267	$	4,334	$	4,616

Incentive Compensation

Our Executive Compensation Committee determines compensation, including cash bonuses and equity incentives, for our executive officers, as defined in Rule 16 under the Exchange Act. For 2025, the annual cash bonus program was structured to allow the Executive Compensation Committee to evaluate the Company’s performance against pre-established goals under a variety of key quantitative and qualitative metrics at the end of the year and make a determination based on the Company’s and management’s overall performance. Our Executive Compensation Committee also grants equity incentive awards from time to time that include performance-based and/or market-measure based vesting requirements and time-based vesting requirements. As a result, accrued incentive compensation and compensation expense for future awards may be affected by our operating and development performance, financial results, stock price, market conditions, liquidity measures, and other factors. Consequently, we cannot predict the amounts that will be recorded in future periods related to such incentive compensation.

As of June 30, 2025, there was approximately $33.4 million of total unrecognized compensation costs related to outstanding nonvested RSUs granted under share-based compensation arrangements. Such amount is based in part upon the estimated future outcome of the performance metrics as of June 30, 2025, and the actual compensation cost ultimately recognized could increase or decrease from this estimate based upon actual performance results. These costs are expected to be recognized over a weighted-average period of 2.0 years. The $33.4 million of unrecognized compensation cost does not reflect the future compensation costs for any share-based awards that may be granted subsequent to June 30, 2025. Share-based compensation expense for potential future awards could be affected by our operating and development performance, financial results, stock price, market conditions, and other factors. For additional information regarding our equity incentive awards, see Note 7 “Share-Based Compensation” to our consolidated financial statements included in this report.

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Results of Operations

Net Operating Income

Management internally evaluates the operating performance and financial results of our stabilized portfolio based on Net Operating Income. We define “Net Operating Income” as consolidated operating revenues (rental income and other property income) less consolidated operating expenses (property expenses, real estate taxes, and ground leases). Commencing January 1, 2025, the Company also began excluding lease termination fees from the calculation of rental income for Net Operating Income as they are non-recurring in nature and its exclusion will provide a measure that we believe is more indicative of our core operating performance. Historical amounts for Net Operating Income have been revised to conform with current period presentation.

Net Operating Income is considered by management to be an important and appropriate supplemental performance measure to net income because we believe it helps both investors and management to understand the core operations of our properties excluding corporate and financing-related costs and non-cash depreciation and amortization. Net Operating Income is an unlevered operating performance metric of our properties and allows for a useful comparison of the operating performance of individual assets or groups of assets. This measure thereby provides an operating perspective not immediately apparent from net income. In addition, Net Operating Income is considered by many in the real estate industry to be a useful starting point for determining the value of a real estate asset or group of assets. Other real estate companies may use different methodologies for calculating Net Operating Income and, accordingly, our presentation of Net Operating Income may not be comparable to other real estate companies. Because of the exclusion of the items shown in the reconciliation below, Net Operating Income should only be used as a supplemental measure of our financial performance and not as an alternative to GAAP net income.

Management further evaluates Net Operating Income by evaluating the performance from the following property groups:

•Same Property Portfolio – includes the consolidated results of all of the properties that were owned and included in our stabilized portfolio for two comparable reporting periods, i.e., owned and included in our stabilized portfolio as of January 1, 2024 and still owned and included in the stabilized portfolio as of June 30, 2025, including our three residential properties in Hollywood and Del Mar, California;

•Acquisition Properties – includes the results, from the date of acquisition through the periods presented, for the one property acquired in the third quarter of 2024;

•Development Properties – includes the results generated by certain of our in-process development and redevelopment projects, and expenses for certain of our future development projects; and

•Disposition & Held for Sale Properties – includes the results of one property disposed of in the second quarter of 2025 and one property, comprised of four buildings, classified as held for sale as of June 30, 2025.

The following table sets forth certain information regarding the property groups within our stabilized office portfolio as of June 30, 2025:

Group	# of Buildings	Rentable Square Feet
Same Property Portfolio	116	16,291,760
Acquisition Properties	2	103,731
Total Stabilized Portfolio	118	16,395,491

34

Comparison of the Three Months Ended June 30, 2025 to the Three Months Ended June 30, 2024

The following table summarizes our Net Operating Income for our total portfolio for the three months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Dollar Change		Percentage Change
	2025		2024
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	68,449	$	49,211	$	19,238	39.1	%
Net income attributable to noncontrolling common units of the Operating Partnership	663		458		205		44.8	%
Net income attributable to noncontrolling interests in consolidated property partnerships	10,456		4,878		5,578		114.4	%
Net income	$	79,568	$	54,547	$	25,021	45.9	%
Unallocated expense (income):
Lease termination fees (1)	(10,754)		(1,451)		(9,303)		641.1	%
General and administrative expenses	18,475		18,824		(349)		(1.9)	%
Leasing costs	2,277		2,119		158		7.5	%
Depreciation and amortization	87,625		87,151		474		0.5	%
Interest income	(512)		(10,084)		9,572		(94.9)	%
Interest expense	30,844		36,763		(5,919)		(16.1)	%
Other income (expense)	(190)		127		(317)		(249.6)	%
Gain on sale of depreciable operating property	(16,554)		—		(16,554)		(100.0)	%
Net Operating Income	$	190,779	$	187,996	$	2,783	1.5	%

____________________

(1)Commencing January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. Net Operating Income as presented has been conformed to our new definition.

The following tables summarize our Net Operating Income for our total portfolio for the three months ended June 30, 2025 and 2024:

	Three Months Ended June 30,
	2025										2024
	Same Property		Develop- ment		Acquisi- tion		Disposition & Held for  Sale		Total		Same Property		Develop- ment		Acquisi- tion		Disposition & Held for Sale		Total
	(in thousands)
Operating revenues:
Rental income (1)	$	263,060	$	109	$	1,542	$	9,606	$	274,317	$	262,471	$	819	$	—	$	11,178	$	274,468
Other property income	4,576		183		—		62		4,821		4,711		77		—		24		4,812
Total	267,636		292		1,542		9,668		279,138		267,182		896		—		11,202		279,280
Property and related expenses:
Property expenses	56,751		338		280		1,206		58,575		57,672		250		—		1,357		59,279
Real estate taxes	24,677		724		107		1,257		26,765		27,307		456		—		1,246		29,009
Ground leases	3,019		—		—		—		3,019		2,996		—		—		—		2,996
Total	84,447		1,062		387		2,463		88,359		87,975		706		—		2,603		91,284
Net Operating Income	$	183,189	$	(770)	$	1,155	$	7,205	$	190,779	$	179,207	$	190	$	—	$	8,599	$	187,996

____________________

(1)Beginning January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. Net Operating Income as presented has been conformed to our new definition. The three months ended June 30, 2025 and 2024 excludes $10.8 million and $1.5 million of lease termination fees from total Net Operating Income, respectively, related to the Same Property portfolio.

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	Three Months Ended June 30, 2025 as compared to the Three Months Ended June 30, 2024
	Same Property				Development				Acquisition				Disposition & Held for Sale				Total
	Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change
	($ in thousands)
Operating revenues:
Rental income (1)	$	589	0.2	%	$	(710)	(86.7)	%	$	1,542	100.0	%	$	(1,572)	(14.1)	%	$	(151)	(0.1)	%
Other property income	(135)		(2.9)	%	106		137.7	%	—		—	%	38		158.3	%	9		0.2	%
Total	454		0.2	%	(604)		(67.4)	%	1,542		100.0	%	(1,534)		(13.7)	%	(142)		(0.1)	%
Property and related expenses:
Property expenses	(921)		(1.6)	%	88		35.2	%	280		100.0	%	(151)		(11.1)	%	(704)		(1.2)	%
Real estate taxes	(2,630)		(9.6)	%	268		58.8	%	107		100.0	%	11		0.9	%	(2,244)		(7.7)	%
Ground leases	23		0.8	%	—		—	%	—		—	%	—		—	%	23		0.8	%
Total	(3,528)		(4.0)	%	356		50.4	%	387		100.0	%	(140)		(5.4)	%	(2,925)		(3.2)	%
Net Operating Income	$	3,982	2.2	%	$	(960)	(505.3)	%	$	1,155	100.0	%	$	(1,394)	(16.2)	%	$	2,783	1.5	%

____________________

(1)Beginning January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. The three months ended June 30, 2025 and 2024 excludes $10.8 million and $1.5 million of lease termination fees from total Net Operating Income, respectively, related to the Same Property portfolio.

Net Operating Income increased $2.8 million, or 1.5%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily resulting from:

•An increase in Net Operating Income of $4.0 million, or 2.2%, attributable to the Same Property portfolio, which was driven by the following activity:

•An increase in total operating revenues of $0.5 million, or 0.2%, primarily due to a(n):

•$5.7 million increase in revenue associated with tenant creditworthiness considerations that resulted in higher non-recurring charges in 2024; and

•$2.2 million increase in restoration fee income in 2025;

Partially offset by:

•$5.7 million decrease in straight-line rent, primarily due to the burn-off of $2.2 million in abated rent, mainly in the San Francisco Bay Area and San Diego regions, and aging leases where cash rent now exceeds GAAP rent on a straight-line basis;

•$1.0 million decrease in revenues from recoverable operating expenses; and

•$0.7 million decrease in net base rent, primarily due to a $5.1 million decrease due to lease expirations, partially offset by a $2.2 million increase from higher rates and a $2.2 million increase in cash rent due to the burn-off of abated rent mentioned above.

•A decrease in property and related expenses of $3.5 million, or 4.0%, primarily due to a(n):

•$2.6 million decrease in real estate taxes, primarily due to a net increase in refunds of $1.2 million received in 2025 and a $1.4 million decrease resulting from lower assessed property values; and

•$0.9 million decrease in property expenses, primarily due to a decrease in insurance premiums.

•An increase in Net Operating Income of $1.2 million, or 100.0%, attributable to the Acquisition Properties.

Partially offset by:

•A decrease in Net Operating Income of $1.4 million, or 16.2%, attributable to the Disposition & Held for Sale Properties.

36

•A decrease in Net Operating Income of $1.0 million, or 505.3%, attributable to the Development Properties.

Unallocated Expenses and Income

Lease Termination Fees

Lease termination fees increased $9.3 million, or 641.1%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to a lease termination fee recognized for one tenant in 2025 in the San Francisco Bay Area region.

General and Administrative Expenses

General and administrative expenses remained generally consistent for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024.

Depreciation and Amortization

Depreciation and amortization increased $0.5 million, or 0.5%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to the following:

•An increase of $1.0 million attributable to the Acquisition Properties; and

•An increase of $0.5 million attributable to the Development Properties; partially offset by

•A decrease of $0.3 million attributable to the Same Property Portfolio, primarily due to early lease terminations and fully depreciated assets; and

•A decrease of $0.7 million attributable to the Disposition & Held for Sale Properties.

Interest Income

Interest income decreased $9.6 million, or 94.9%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to carrying lower balances in our interest-bearing accounts.

Interest Expense

The following table sets forth our gross interest expense and capitalized interest for the three months ended June 30, 2025 and 2024:

	Three Months Ended June 30,
	2025			2024			Dollar Change		Percentage Change
	($ in thousands)
Gross interest expense	$	52,177		$	57,278		$	(5,101)	(8.9)	%
Capitalized interest	(21,333)			(20,515)			(818)		4.0	%
Interest expense	$	30,844		$	36,763		$	(5,919)	(16.1)	%
Average Qualifying Costs	$	1,914,978		$	1,863,652		$	51,326	2.8	%
Weighted Average Interest and Loan Fee Amortization Rate	4.47		%	4.43		%			0.04	%

Gross interest expense, before the effect of capitalized interest, decreased $5.1 million, or 8.9%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to a decrease in the average outstanding debt balance for the three months ended June 30, 2025.

Capitalized interest increased $0.8 million, or 4.0%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to an increase in the average aggregate cost basis on in-process development and redevelopment projects and future development pipeline projects during the three months ended June 30, 2025. Capitalized interest will vary based on the current status of active development or redevelopment projects and our future development

37

pipeline. For additional information about the potential impact of inflation on our interest expense and construction costs, and the impact on our business, financial condition, results of operations, cash flows, liquidity, and ability to satisfy our debt service obligations, refer to “Part I, Item IA. Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2024.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased $5.6 million, or 114.4%, for the three months ended June 30, 2025 as compared to the three months ended June 30, 2024, primarily due to lease termination fee income from one tenant in 2025. The amounts reported for the three months ended June 30, 2025 and 2024 are comprised of the share of net income attributable to noncontrolling interests for 100 First LLC, 303 Second LLC, and Redwood LLC. See Note 1 “Organization, Ownership, and Basis of Presentation” to our consolidated financial statements included in this report for additional information.

38

Comparison of the Six Months Ended June 30, 2025 to the Six Months Ended June 30, 2024

The following table summarizes our Net Operating Income for our total portfolio for the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,				Dollar Change		Percentage Change
	2025		2024
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	107,457	$	99,131	$	8,326	8.4	%
Net income attributable to noncontrolling common units of the Operating Partnership	1,038		960		78		8.1	%
Net income attributable to noncontrolling interests in consolidated property partnerships	14,754		10,156		4,598		45.3	%
Net income	$	123,249	$	110,247	$	13,002	11.8	%
Unallocated expense (income):
Lease termination fees (1)	(11,260)		(3,136)		(8,124)		259.1	%
General and administrative expenses	35,376		36,116		(740)		(2.0)	%
Leasing costs	5,150		4,398		752		17.1	%
Depreciation and amortization	174,744		175,182		(438)		(0.3)	%
Interest income	(1,646)		(23,274)		21,628		(92.9)	%
Interest expense	61,992		75,634		(13,642)		(18.0)	%
Other income (expense)	(33)		414		(447)		(108.0)	%
Gain on sale of depreciable operating property	(16,554)		—		(16,554)		100.0	%
Net Operating Income	$	371,018	$	375,581	$	(4,563)	(1.2)	%

____________________

(1)Commencing January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. Net Operating Income as presented has been conformed to our new definition.

The following tables summarize our Net Operating Income for our total portfolio for the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025										2024
	Same Property		Develop- ment		Acquisi- tion		Disposition & Held for Sale		Total		Same Property		Develop- ment		Acquisi- tion		Disposition & Held for Sale		Total
	(in thousands)
Operating revenues:
Rental income (1)	$	517,424	$	264	$	3,124	$	19,243	$	540,055	$	524,669	$	957	$	—	$	22,047	$	547,673
Other property income	8,797		440		—		184		9,421		8,250		188		—		65		8,503
Total	526,221		704		3,124		19,427		549,476		532,919		1,145		—		22,112		556,176
Property and related expenses:
Property expenses	113,645		730		520		2,394		117,289		113,690		528		—		2,381		116,599
Real estate taxes	50,875		1,526		213		2,516		55,130		54,813		942		—		2,493		58,248
Ground leases	6,039		—		—		—		6,039		5,748		—		—		—		5,748
Total	170,559		2,256		733		4,910		178,458		174,251		1,470		—		4,874		180,595
Net Operating Income	$	355,662	$	(1,552)	$	2,391	$	14,517	$	371,018	$	358,668	$	(325)	$	—	$	17,238	$	375,581

____________________

(1)Beginning January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. Net Operating Income as presented has been conformed to our new definition. The six months ended June 30, 2025 and 2024 excludes $11.3 million and $3.1 million of lease termination fees from total Net Operating Income, respectively, related to the Same Property portfolio.

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	Six Months Ended June 30, 2025 as compared to the Six Months Ended June 30, 2024
	Same Property				Development				Acquisition				Disposition & Held for Sale				Total
	Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change
	($ in thousands)
Operating revenues:
Rental income (1)	$	(7,245)	(1.4)	%	$	(693)	(72.4)	%	$	3,124	100.0	%	$	(2,804)	(12.7)	%	$	(7,618)	(1.4)	%
Other property income	547		6.6	%	252		134.0	%	—		—	%	119		183.1	%	918		10.8	%
Total	(6,698)		(1.3)	%	(441)		(38.5)	%	3,124		100.0	%	(2,685)		(12.1)	%	(6,700)		(1.2)	%
Property and related expenses:
Property expenses	(45)		—	%	202		38.3	%	520		100.0	%	13		0.5	%	690		0.6	%
Real estate taxes	(3,938)		(7.2)	%	584		62.0	%	213		100.0	%	23		0.9	%	(3,118)		(5.4)	%
Ground leases	291		5.1	%	—		—	%	—		—	%	—		—	%	291		5.1	%
Total	(3,692)		(2.1)	%	786		53.5	%	733		100.0	%	36		0.7	%	(2,137)		(1.2)	%
Net Operating Income	$	(3,006)	(0.8)	%	$	(1,227)	377.5	%	$	2,391	100.0	%	$	(2,721)	(15.8)	%	$	(4,563)	(1.2)	%

____________________

(1)Beginning January 1, 2025, the Company began excluding lease termination fees from the calculation of rental income for Net Operating Income. The six months ended June 30, 2025 and 2024 excludes $11.3 million and $3.1 million of lease termination fees from total Net Operating Income, respectively, related to the Same Property portfolio.

Net Operating Income decreased $4.6 million, or 1.2%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily resulting from:

•A decrease in Net Operating Income of $3.0 million, or 0.8%, attributable to the Same Property portfolio, which was driven by the following activity:

•A decrease in total operating revenues of $6.7 million, or 1.3%, primarily due to a(n):

•$12.1 million decrease in straight-line rent, primarily due to the burn-off of $6.1 million in abated rent, mainly in the San Francisco Bay Area and San Diego regions, and aging leases where cash rent now exceeds GAAP rent on a straight-line basis;

•$2.9 million decrease in revenues from recoverable operating expenses, primarily related to a $1.5 million non-recurring reimbursement in 2024; and

•$1.9 million decrease in amortization of deferred revenue, mainly resulting from tenant move outs;

Partially offset by:

•$7.4 million increase in revenue associated with tenant creditworthiness considerations that resulted in higher non-recurring charges in 2024;

•$1.6 million increase due to increase in restoration fee income in 2025, partially offset by higher settlement fee income in 2024; and

•$1.2 million increase in net base rent, primarily due to a $6.2 million increase from higher rates and the above-mentioned $6.1 million increase in cash rent due to the burn-off of abated rent, partially offset by a net $11.1 million decrease due to lease expirations.

•A decrease in property and related expenses of $3.7 million, or 2.1%, primarily due to a(n):

•$3.9 million decrease in real estate taxes, primarily due to a net increase in refunds of $1.3 million received in 2025 and a $2.8 million decrease resulting from lower assessed property values.

•A decrease in Net Operating Income of $2.7 million, or 15.8%, attributable to the Disposition & Held for Sale Properties.

40

Partially offset by:

•An increase in Net Operating Income of $2.4 million, or 100.0%, attributable to the Acquisition Properties.

•An increase in Net Operating Income of $1.2 million, or 377.5%, attributable to the Development Properties.

Unallocated Expenses and Income

Lease Termination Fees

Lease termination fees increased $8.1 million, or 259.1%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to a lease termination fee recognized for one tenant in 2025 in the San Francisco Bay Area region.

General and Administrative Expenses

General and administrative expenses remained generally consistent for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024.

Leasing Costs

Leasing costs increased $0.8 million, or 17.1%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to an increase in leasing overhead during the six months ended June 30, 2025.

Depreciation and Amortization

Depreciation and amortization decreased $0.4 million, or 0.3%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to the following:

•A decrease of $2.0 million attributable to the Same Property Portfolio, primarily due to early lease terminations and fully depreciated assets; and

•A decrease of $0.7 million attributable to Disposition & Held for Sale Properties; partially offset by

•An increase of $2.1 million attributable to Acquisition Properties; and

•An increase of $0.2 million attributable to the Development Properties.

Interest Income

Interest income decreased $21.6 million, or 92.9%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to carrying lower balances in our interest-bearing accounts.

Interest Expense

The following table sets forth our gross interest expense and capitalized interest for the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025			2024			Dollar Change		Percentage Change
	($ in thousands)
Gross interest expense	$	103,873		$	115,956		$	(12,083)	(10.4)	%
Capitalized interest	(41,881)			(40,322)			(1,559)		3.9	%
Interest expense	$	61,992		$	75,634		$	(13,642)	(18.0)	%
Average Qualifying Costs	$	1,890,610		$	1,819,653		$	70,957	3.9	%
Weighted Average Interest and Loan Fee Amortization Rate	4.47		%	4.46		%			0.01	%

41

Gross interest expense, before the effect of capitalized interest, decreased $12.1 million, or 10.4%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to a decrease in the average outstanding debt balance for the six months ended June 30, 2025.

Capitalized interest increased $1.6 million, or 3.9%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to an increase in the average aggregate cost basis on in-process development and redevelopment projects and future development pipeline projects during the six months ended June 30, 2025. Capitalized interest will vary based on the current status of active development or redevelopment projects and our future development pipeline. For additional information about the potential impact of inflation on our interest expense and construction costs, and the impact on our business, financial condition, results of operations, cash flows, liquidity, and ability to satisfy our debt service obligations, refer to “Part I, Item IA. Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2024.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships increased $4.6 million, or 45.3%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to lease termination fee income from one tenant in 2025. The amounts reported for the six months ended June 30, 2025 and 2024 are comprised of the share of net income attributable to noncontrolling interests for 100 First LLC, 303 Second LLC, and Redwood LLC. See Note 1 “Organization, Ownership, and Basis of Presentation” to our consolidated financial statements included in this report for additional information.

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Liquidity and Capital Resources of the Company

In this “Liquidity and Capital Resources of the Company” section, the term the “Company” refers only to Kilroy Realty Corporation on an unconsolidated basis and excludes the Operating Partnership and all other subsidiaries.

The Company’s business is operated primarily through the Operating Partnership. Distributions from the Operating Partnership are the Company’s primary source of capital. The Company believes the Operating Partnership’s sources of working capital, specifically its cash flows from operations, borrowings available under its unsecured revolving credit facility, and funds from its capital recycling program, including strategic ventures, are adequate for it to make its distribution payments to the Company to make dividend payments to its common stockholders for the next twelve months. Cash flows from operating activities generated by the Operating Partnership for the six months ended June 30, 2025 were sufficient to cover the Company’s payment of cash dividends to its stockholders. However, there can be no assurance that the Operating Partnership’s sources of capital will continue to be available at all or in amounts sufficient to meet its needs, including its ability to make distributions to the Company. The unavailability of capital could adversely affect the Operating Partnership’s ability to make distributions to the Company, which would in turn, adversely affect the Company’s ability to pay cash dividends to its stockholders.

The Company is a well-known, seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depositary shares, warrants, and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing, and capital needs. Capital raising could be more challenging under current market conditions as uncertainty related to interest rates, inflation rates, economic outlook, geopolitical events, and other factors have contributed and may continue to contribute to significant volatility and negative pressures in financial markets. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility and unsecured term loan facility, to develop new or redevelop existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

As the sole general partner with control of the Operating Partnership, the Company consolidates the Operating Partnership for financial reporting purposes, and the Company does not have significant assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities and the revenues and expenses of the Company and the Operating Partnership are substantially the same on their respective financial statements. The section entitled “Liquidity and Capital Resources of the Operating Partnership” should be read in conjunction with this section to understand the liquidity and capital resources of the Company on a consolidated basis and how the Company is operated as a whole.

Liquidity Highlights

As of June 30, 2025, we had approximately $193.1 million in cash and cash equivalents and $1.1 billion available under our unsecured revolving credit facility. We believe that our available liquidity makes us well positioned to navigate any additional future uncertainties. In addition, the Company is a well-known, seasoned issuer and has historically been able to raise capital on a timely basis in the public markets, as well as the private markets. Any future financings, however, will depend on market conditions for both capital raises and the investment of such proceeds and there can be no assurances that we will successfully obtain such financings.

43

Distribution Requirements

The Company is required to distribute 90% of its taxable income (subject to certain adjustments and excluding net capital gains) on an annual basis to maintain qualification as a REIT for federal income tax purposes and is required to pay income tax at regular corporate rates to the extent it distributes less than 100% of its taxable income (including capital gains). As a result of these distribution requirements, the Operating Partnership cannot rely on retained earnings to fund its on-going operations to the same extent as other companies whose parent companies are not REITs. In addition, the Company may be required to use borrowings under the Operating Partnership’s revolving credit facility, if necessary, to meet REIT distribution requirements and maintain its REIT status. The Company may also need to raise capital to fund the Operating Partnership’s working capital needs, as well as potential developments of new or existing properties or acquisitions.

The Company intends to continue to make, but has not committed to make, regular quarterly cash distributions to common stockholders and, through the Operating Partnership, to common unitholders from the Operating Partnership’s cash flows from operating activities. All such distributions are at the discretion of the Board of Directors. As the Company intends to maintain distributions at a level sufficient to meet the REIT distribution requirements and minimize its obligation to pay income and excise taxes, it will continue to evaluate whether the current levels of distribution are appropriate to do so throughout 2025. In addition, in the event the Company completes additional dispositions in the future and is unable to successfully complete Section 1031 Exchanges to defer some or all of the taxable gains related to property dispositions (or in the event additional legislation is enacted that further modifies or repeals laws with respect to Section 1031 Exchanges), the Company may be required to distribute a special dividend to its common stockholders and common unitholders in order to minimize or eliminate income taxes on such gains. The Company considers market factors and its performance in addition to REIT requirements in determining its distribution levels. Amounts accumulated for distribution to stockholders are invested primarily in interest-bearing accounts and short-term interest-bearing securities, which is consistent with the Company’s intention to maintain its qualification as a REIT. Such investments may include, for example, obligations of the Government National Mortgage Association, other governmental agency securities, certificates of deposit, and interest-bearing bank deposits.

On May 20, 2025, the Board of Directors declared a regular quarterly cash dividend of $0.54 per share of common stock. The regular quarterly cash dividend is payable to stockholders of record on June 30, 2025 and a corresponding cash distribution of $0.54 per Operating Partnership unit is payable to holders of the Operating Partnership’s common limited partnership interests of record on June 30, 2025, including those owned by the Company. The total cash quarterly dividends and distributions paid on July 9, 2025 were $64.5 million.

Debt Covenants

The covenants contained within certain of our unsecured debt obligations generally prohibit the Company from paying dividends during an event of default in excess of an amount which results in distributions to us in an amount sufficient to permit us to pay dividends to our stockholders that we reasonably believe are necessary to (i) maintain our qualification as a REIT for federal and state income tax purposes, and (ii) avoid the payment of federal or state income or excise tax.

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Capitalization

As of June 30, 2025, our total debt as a percentage of total market capitalization was 53.0%, which was calculated based on the closing price per share of the Company’s common stock of $34.31 on June 30, 2025 as shown in the following table:

	Shares / Units at  June 30, 2025	Aggregate Principal Amount or $ Value Equivalent		% of Total Market Capitalization
		($ in thousands)
Debt: (1)(2)
Unsecured Term Loan Facility due 2025 (3)		$	200,000	2.3	%
Unsecured Senior Notes Series A & B due 2026		250,000		2.9	%
Unsecured Senior Notes Series A & B due 2027 & 2029		250,000		2.9	%
Unsecured Senior Notes due 2031		350,000		3.9	%
Unsecured Senior Notes due 2025		400,000		4.6	%
Unsecured Senior Notes due 2028 (4)		400,000		4.6	%
Unsecured Senior Notes due 2029		400,000		4.6	%
Unsecured Senior Notes due 2030		500,000		5.6	%
Unsecured Senior Notes due 2032 (4)		425,000		4.9	%
Unsecured Senior Notes due 2033 (4)		450,000		5.2	%
Unsecured Senior Notes due 2036		400,000		4.6	%
Secured debt		603,595		6.9	%
Total debt		$	4,628,595	53.0	%
Equity and Noncontrolling Interests in the Operating Partnership: (5)
Common limited partnership units outstanding (6)	1,150,574	$	39,476	0.5	%
Shares of common stock outstanding	118,294,328	4,058,678		46.5	%
Total Equity and Noncontrolling Interests in the Operating Partnership		$	4,098,154	47.0	%
Total Market Capitalization		$	8,726,749	100.0	%

________________________ 

(1)    Represents gross aggregate principal amount due at maturity before the effect of the following at June 30, 2025: $23.1 million of unamortized deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt and $7.7 million of unamortized discounts for the unsecured senior notes.

(2)    As of June 30, 2025, there was no outstanding balance on the unsecured revolving credit facility.

(3)    The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

(4)    Green bond.

(5)    Value based on closing price per share of our common stock of $34.31, as of June 30, 2025.

(6)    Includes common units of the Operating Partnership not owned by the Company; does not include noncontrolling interests in consolidated property partnerships.

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Liquidity and Capital Resources of the Operating Partnership

In this “Liquidity and Capital Resources of the Operating Partnership” section, the terms “we,” “our,” and “us” refer to the Operating Partnership or the Operating Partnership and the Company together, as the context requires.

General

Our primary liquidity sources and uses are as follows:

Liquidity Sources

•Net cash flows from operations;

•Borrowings under the Operating Partnership’s unsecured revolving credit facility;

•Proceeds from our capital recycling program, including the disposition of assets and the formation of strategic ventures;

•Proceeds from additional secured or unsecured debt financings; and

•Proceeds from equity or preferred equity securities.

Liquidity Uses

•Property operating and corporate expenses;

•Capital expenditures, tenant improvements, and leasing costs;

•Development and redevelopment costs;

•Operating property or undeveloped land acquisitions;

•Debt service and principal payments, including debt maturities, debt repurchases, and redemptions;

•Distributions to common security holders; and

•Repurchases and redemptions of outstanding common stock of the Company.

General Strategy

Our general strategy is to maintain a conservative balance sheet with a strong credit profile and to maintain a capital structure that allows for financial flexibility and diversification of capital resources. We manage our capital structure to reflect a long-term investment approach and utilize multiple sources of capital to meet our long-term capital requirements. We believe that our current projected liquidity requirements for the next twelve-month period, as set forth above under the caption “—Liquidity Uses,” will be satisfied using a combination of the liquidity sources listed above, although there can be no assurance in this regard. We believe our conservative leverage and staggered debt maturities provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities, although there can be no assurance in this regard.

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Liquidity Sources

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of June 30, 2025 and December 31, 2024:

	Unsecured Revolving Credit Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.65		%	5.69		%
Facility fee-annual rate (3)	0.250%
Unamortized deferred financing costs (3)	$	10,921		$	12,692
Maturity date (4)	July 31, 2028

________________________

(1)Remaining and total borrowing capacity are further reduced by the amount of our outstanding letters of credit which total approximately $5.2 million as of June 30, 2025 and December 31, 2024. We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $500.0 million under an accordion feature pursuant to the terms of the unsecured revolving credit facility.

(2)Our unsecured revolving credit facility interest rate was calculated using the Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% (“Adjusted SOFR”) and a margin of 1.100% based on our credit rating as of June 30, 2025 and December 31, 2024. We may be entitled to a temporary 0.01% reduction in the interest rate provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions.

(3)Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024. These costs are included in Prepaid expenses and other assets, net on our consolidated balance sheets, which remain to be amortized through the maturity date of our unsecured revolving credit facility.

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

The Operating Partnership intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, including to finance development and redevelopment expenditures, to fund potential acquisitions, to repay long-term debt, and to supplement cash balances in response to market conditions.

The following table summarizes the balance and terms of our 2024 Term Loan Facility as of June 30, 2025:

	2024 Term Loan Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings (1)	$	200,000		$	200,000
Interest rate (2)	5.62		%	5.70		%
Unamortized deferred financing costs (3)	$	419		$	1,229
Maturity date (4)	October 3, 2025

____________________

(1)We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $130.0 million as of June 30, 2025 and December 31, 2024, under an accordion feature pursuant to the terms of the 2024 Term Loan Facility.

(2)Our 2024 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 1.200% based on our credit rating as of June 30, 2025 and December 31, 2024.

(3)We incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024, which remain to be amortized through the maturity date of the 2024 Term Loan Facility.

(4)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

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Capital Recycling Program

As discussed in the section “Factors That May Influence Future Results of Operations - Capital Recycling Program,” we continuously evaluate opportunities for the potential disposition of non-core properties and undeveloped land in our portfolio, or the formation of strategic ventures, with the intent of using the proceeds generated to acquire new operating and development properties, to finance development and redevelopment expenditures, to repay long-term debt, and for other general corporate purposes. As part of this strategy, we may attempt to enter into Section 1031 Exchanges, and other tax deferred transaction structures, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes.

In connection with our capital recycling strategy, during the six months ended June 30, 2025, we completed the sale of one operating property to an unaffiliated third party for gross proceeds of $40.0 million. As of June 30, 2025, we had one operating property, comprised of four buildings, classified as held for sale, with an expected gross sales price of $365.0 million. The sale of this property is expected to close late in the third quarter of 2025. The timing of any potential future disposition or strategic venture transactions will depend on market conditions and other factors, including, but not limited to, our capital needs, the availability of financing for potential buyers (which has been and may continue to be constrained due to current economic and market conditions), and our ability to absorb or defer some or all of the taxable gains on the sales. We cannot assure that we will dispose of any additional properties, enter into any additional strategic ventures, or that we will be able to effect a Section 1031 Exchange or be able to use other tax deferred structures in connection with our strategy. In the event we are unable to complete dispositions as planned, we may raise capital through other sources of liquidity including our available unsecured revolving credit facility or the public or private issuance of unsecured debt.

Shelf Registration Statement

The Company is a well-known, seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depository shares, warrants, and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing, and capital needs. Capital raising could be more challenging under current market conditions as uncertainty related to interest rates, inflation rates, economic outlook, geopolitical events, and other factors have contributed and may continue to contribute to significant volatility and negative pressures in financial markets. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility and unsecured term loan facility, to develop new or redevelop existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

At-The-Market Stock Offering Program

Under our current at-the-market stock offering program (the “2024 ATM Program”), we may currently offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with the 2024 ATM Program, the Company may also, at its discretion, enter into forward equity sale agreements. The use of forward equity sale agreements allows the Company to lock in a share price on the sale of shares of our common stock at the time an agreement is executed, but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date. The Company did not have any outstanding forward equity sale agreements to be settled at June 30, 2025. Since commencement of the 2024 ATM Program, we have not completed any sales of common stock.

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Liquidity Uses

Contractual Obligations

Refer to our 2024 Annual Report on Form 10-K for a discussion of our contractual obligations. There have been no material changes outside of the ordinary course of business to these contractual obligations during the six months ended June 30, 2025.

Other Liquidity Uses

Potential Future Leasing Costs and Capital Improvements

The amounts we incur for tenant improvements and leasing costs depend on leasing activity in each period. Tenant improvements and leasing costs generally fluctuate in any given period depending on factors such as the type and condition of the property, the term of the lease, the type of the lease, the involvement of external leasing agents, and overall market conditions, including the level of inflation. Capital expenditures may fluctuate in any given period subject to the nature, extent, and timing of improvements required to maintain our properties and may be impacted by inflationary pressures on the cost of construction materials.

Development

We believe we may spend between $50.0 million to $150.0 million on development projects throughout the remainder of 2025. The ultimate timing of these expenditures may fluctuate given construction progress and leasing status of the projects, or as a result of events outside our control, such as delays or increased costs as a result of heightened inflation and market conditions. We expect that any material additional development activities will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, or strategic venture opportunities. We cannot provide assurance that development projects will be completed on the terms, for the amounts, or on the timelines currently contemplated, or at all.

Potential Future Acquisitions

As discussed in the section “—Factors That May Influence Future Results of Operations - Capital Recycling Program,” we continue to evaluate strategic opportunities and remain a disciplined buyer of core, value-add, and strategic operating properties and land, dependent on market conditions and business cycles, among other factors. We focus on growth opportunities primarily in markets populated by knowledge and creative based tenants in a variety of industries, including technology, entertainment, healthcare, life sciences, and business services. We expect that any material acquisitions will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, the formation of strategic ventures, or through the assumption of existing debt, although there can be no assurance in this regard.

We cannot provide assurance that we will enter into any agreements to acquire properties or undeveloped land, or that potential acquisitions contemplated by any agreements we may enter into in the future will be completed.

Debt Maturities

Our next debt maturities include the $200.0 million term loan facility and the $400.0 million unsecured senior notes, both of which mature in October 2025 (before the exercise of the two 12-month extension options under the 2024 Term Loan Facility). We believe our conservative leverage, staggered debt maturities, and our unsecured revolving credit facility provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we believe we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities. However, we can provide no assurance that we will have access to the public or private debt or equity markets in the future on favorable terms or at all. We may, however, repurchase certain of our unsecured senior notes from time to time prior to maturity (depending on prevailing market conditions, our liquidity, contractual restrictions, and other factors) through cash purchases, open-market purchases, privately negotiated transactions, tender offers, or otherwise.

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Unsecured and Secured Debt

The aggregate principal amount of the unsecured and secured debt of the Operating Partnership outstanding as of June 30, 2025 was as follows:

	Aggregate Principal  Amount Outstanding
	(in thousands)
Unsecured Term Loan Facility due 2025 (1)	$	200,000
Unsecured Senior Notes Series A & B due 2026	250,000
Unsecured Senior Notes Series A & B due 2027 & 2029	250,000
Unsecured Senior Notes due 2031	350,000
Unsecured Senior Notes due 2025	400,000
Unsecured Senior Notes due 2028 (2)	400,000
Unsecured Senior Notes due 2029	400,000
Unsecured Senior Notes due 2030	500,000
Unsecured Senior Notes due 2032 (2)	425,000
Unsecured Senior Notes due 2033 (2)	450,000
Unsecured Senior Notes due 2036	400,000
Secured Debt	603,595
Total Unsecured and Secured Debt (3)	4,628,595
Less: Unamortized Net Discounts and Deferred Financing Costs (4)	(30,876)
Total Debt, Net	$	4,597,719

________________________ 

(1)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

(2)Green bond.

(3)As of June 30, 2025, there was no outstanding balance on the unsecured revolving credit facility.

(4)Includes $23.1 million of unamortized deferred financing costs on the unsecured term loan facility, unsecured senior notes, and secured debt and $7.7 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in Prepaid expenses and other assets, net on our consolidated balance sheets.

Debt Composition

The composition of the Operating Partnership’s aggregate debt balances between secured and unsecured and fixed-rate and variable-rate debt as of June 30, 2025 and December 31, 2024 was as follows:

	Percentage of Total Debt (1)(2)				Weighted Average Interest Rate (1)(2)
	June 30, 2025		December 31, 2024		June 30, 2025		December 31, 2024
Secured vs. unsecured:
Unsecured	87.0	%	86.9	%	4.0	%	4.0	%
Secured	13.0	%	13.1	%	5.1	%	5.1	%
Variable-rate vs. fixed-rate:
Variable-rate	4.3	%	4.3	%	5.6	%	5.7	%
Fixed-rate (3)	95.7	%	95.7	%	4.1	%	4.1	%
Stated rate					4.2	%	4.2	%
Effective rate (3)					4.5	%	4.5	%

________________________

(1)    As of the end of the period presented.

(2)    As of June 30, 2025 and December 31, 2024, there was no outstanding balance on the unsecured revolving credit facility.

(3)    Includes the amortization of deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt, as well as the unused facility fee on the unsecured revolving credit facility, and the amortization of discounts for the unsecured senior notes.

Share Repurchases

Under our current share repurchase program, which commenced in February 2024 (the “Share Repurchase Program”), we are authorized to repurchase shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price, and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. Since commencement of the Share Repurchase Program, we have not completed any common stock repurchases.

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Factors That May Influence Future Sources of Capital and Liquidity of the Company and the Operating Partnership

We continue to evaluate sources of financing for our business activities, including borrowings under the unsecured revolving credit facility, the unsecured term loan facility, issuance of public and private equity securities, unsecured debt and fixed-rate secured mortgage financing, proceeds from the disposition of selective assets through our capital recycling program, and the formation of strategic ventures. However, our ability to obtain new financing or refinance existing borrowings on favorable terms could be impacted by various factors, including the state of the macro economy, the state of the credit and equity markets, significant tenant defaults, a decline in the demand for office properties, a decrease in market rental rates or market values of real estate assets in our submarkets, the amount of our future borrowings and uncertainty related to interest rates, inflation rates, geopolitical events, and other factors (refer to “Part I, Item IA. Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2024 for additional information). These events could result in the following:

•Decreases in our cash flows from operations, which could create further dependence on the unsecured revolving credit facility;

•An increase in the proportion of variable-rate debt, which could increase our sensitivity to interest rate fluctuations in the future; and

•A decrease in the value of our properties, which could have an adverse effect on the Operating Partnership’s ability to incur additional debt, refinance existing debt at competitive rates, or comply with its existing debt obligations.

In addition to the factors noted above, the Operating Partnership’s credit ratings are subject to ongoing evaluation by credit rating agencies and may be changed or withdrawn by a rating agency in the future if, in its judgment, circumstances warrant.

Financial Covenants and Restrictions

The unsecured revolving credit facility, unsecured term loan facility, unsecured senior notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. The Operating Partnership was in compliance with all of its financial covenants as of June 30, 2025. Our current expectation is that the Operating Partnership will continue to meet the requirements of its financial covenants in both the short and long term. However, in the event of an economic slowdown or continued volatility in the credit markets, there is no certainty that the Operating Partnership will be able to continue to satisfy all the covenant requirements.

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Consolidated Historical Cash Flows Summary

The following summary discussion of our consolidated historical cash flows is based on the consolidated statements of cash flows in Item 1. “Financial Statements” and is not meant to be an all-inclusive discussion of the changes in our cash flows for the periods presented below. Changes in our cash flows include changes in cash and cash equivalents and restricted cash. Our historical cash flow activity for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024 is as follows:

	Six Months Ended June 30,
	2025		2024		Dollar Change		Percentage Change
	($ in thousands)
Net cash provided by operating activities	$	280,667	$	256,562	$	24,105	9.4	%
Net cash (used in) provided by investing activities	(100,343)		40,815		(141,158)		(345.8)	%
Net cash (used in) provided by financing activities	(152,885)		28,353		(181,238)		(639.2)	%
Net increase in cash and cash equivalents	$	27,439	$	325,730	$	(298,291)	(91.6)	%

Operating Activities

Our cash flows from operating activities depends on numerous factors including the occupancy level of our portfolio, the rental rates achieved on our leases, the collectability of rent and recoveries from our tenants, the level of operating expenses, the impact of property acquisitions, completed development projects and related financing activities, and other general and administrative costs. See additional information under the caption “—Results of Operations.” Our net cash provided by operating activities increased by $24.1 million, or 9.4%, for the six months ended June 30, 2025 as compared to the six months ended June 30, 2024, primarily due to the timing of receipt and application of prepaid rent, as well as an increase in accrued property taxes during the six months ended June 30, 2025, partially offset by a decrease in interest accruals during the six months ended June 30, 2025 due to the repayment of the senior notes in the fourth quarter of 2024.

Investing Activities

Our cash flows from investing activities are generally used to fund development and operating property acquisitions, expenditures for development and redevelopment projects, and recurring and nonrecurring capital expenditures for our operating properties, net of proceeds received from dispositions of real estate assets. During the six months ended June 30, 2025, we had net cash used in investing activities of $100.3 million as compared to net cash provided by investing activities of $40.8 million during the six months ended June 30, 2024, primarily due to the maturity of certificates of deposit during the six months ended June 30, 2024, offset by proceeds received from the disposition of an operating property in the six months ended June 30, 2025.

Financing Activities

Our cash flows from financing activities are principally impacted by our capital raising activities, net of dividends and distributions paid to common stockholders and common unitholders. During the six months ended June 30, 2025, we had net cash used in financing activities of $152.9 million as compared to net cash provided by financing activities of $28.4 million during the six months ended June 30, 2024, primarily due to the issuance of the $400.0 million 6.250% unsecured senior notes due 2036 in 2024, offset by the $200.0 million repayment of the 2022 Term Loan Facility during the six months ended June 30, 2024. We did not complete any capital raising activities during the six months ended June 30, 2025.

52

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates, assumptions, and judgments that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses for the reporting periods. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results could materially differ from these estimates.

In our Annual Report on Form 10-K for the year ended December 31, 2024, we identified certain critical accounting policies that affect certain of our more significant estimates and assumptions used in preparing our consolidated financial statements. We have not made any material changes to our critical accounting policies and estimates during the period covered by this report.

Non-GAAP Supplemental Financial Measure: Funds From Operations (“FFO”)

We calculate FFO available to common stockholders and common unitholders in accordance with the 2018 Restated White Paper on FFO approved by the Board of Governors of Nareit. The White Paper defines FFO as net income or loss (calculated in accordance with GAAP), excluding depreciation and amortization related to real estate, gains and losses from the sale of certain real estate assets, gains and losses from change in control, and impairment write-downs of certain real estate assets and investments in entities when the impairment is directly attributable to decreases in the value of depreciable real estate held by the entity. The reconciling items include amounts to adjust earnings from consolidated partially-owned entities and equity in earnings of unconsolidated affiliates to FFO. Our calculation of FFO includes the amortization of deferred revenue related to tenant-funded tenant improvements and excludes the depreciation of the related tenant improvement assets. We also add back net income attributable to noncontrolling common units of the Operating Partnership because we report FFO attributable to common stockholders and common unitholders.

We believe that FFO is a useful supplemental measure of our operating performance. The exclusion from FFO of gains and losses from the sale of operating real estate assets allows investors and analysts to readily identify the operating results of the assets that form the core of our activity and assists in comparing those operating results between periods. Also, because FFO is generally recognized as the industry standard for reporting the operations of REITs, it facilitates comparisons of operating performance to other REITs. However, other REITs may use different methodologies to calculate FFO, and accordingly, our FFO may not be comparable to all other REITs.

Implicit in historical cost accounting for real estate assets in accordance with GAAP is the assumption that the value of real estate assets diminishes predictably over time. Since real estate values have historically risen or fallen with market conditions, many industry investors and analysts have considered presentations of operating results for real estate companies using historical cost accounting alone to be insufficient. Because FFO excludes depreciation and amortization of real estate assets, we believe that FFO along with the required GAAP presentations provides a more complete measurement of our performance relative to our competitors and a more appropriate basis on which to make decisions involving operating, financing, and investing activities than the required GAAP presentations alone would provide.

FFO should not be viewed as an alternative measure of our operating performance since it does not reflect either depreciation and amortization costs or the level of capital expenditures and leasing costs necessary to maintain the operating performance of our properties, which are significant economic costs and could materially impact our results from operations.

53

The following table presents our FFO for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Adjustments:
Net income attributable to noncontrolling common units of the Operating Partnership	663		458		1,038		960
Net income attributable to noncontrolling interests in consolidated property partnerships	10,456		4,878		14,754		10,156
Depreciation and amortization of real estate assets	86,243		85,589		171,978		172,049
Gain on sale of depreciable operating property	(16,554)		—		(16,554)		—
Funds From Operations attributable to noncontrolling interests in consolidated property partnerships	(13,366)		(7,549)		(20,472)		(15,986)
Funds From Operations (1)(2)	$	135,891	$	132,587	$	258,201	$	266,310

________________________

(1)    Reported amounts are attributable to common stockholders, common unitholders, and restricted stock unitholders.

(2)    FFO available to common stockholders and unitholders includes amortization of deferred revenue related to tenant-funded tenant improvements of $3.8 million and $4.4 million for the three months ended June 30, 2025 and 2024, respectively, and $7.5 million and $10.9 million for the six months ended June 30, 2025 and 2024, respectively.

54

ITEM 3.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Information about our market risk is disclosed in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 and is incorporated herein by reference. There have been no material changes for the six months ended June 30, 2025, to the information provided in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024.

ITEM 4.    CONTROLS AND PROCEDURES

Kilroy Realty Corporation

The Company maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Company’s reports under the Exchange Act is processed, recorded, summarized, and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Company carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures as of June 30, 2025, the end of the period covered by this report. Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Company’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Kilroy Realty, L.P.

The Operating Partnership maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Operating Partnership’s reports under the Exchange Act is processed, recorded, summarized, and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer of its general partner, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Operating Partnership carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer of its general partner, of the effectiveness of the design and operation of the disclosure controls and procedures as of June 30, 2025, the end of the period covered by this report. Based on the foregoing, the Chief Executive Officer and Chief Financial Officer of its general partner concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Operating Partnership’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

55

PART II – OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS

We and our properties are subject to routine litigation incidental to our business. These matters are generally covered by insurance. As of June 30, 2025, we are not a defendant in, and our properties are not subject to, any legal proceedings that we believe, if determined adversely to us, would have a material adverse effect upon our financial condition, results of operations or cash flows.

ITEM 1A.    RISK FACTORS

There have been no material changes to the risk factors included in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2024.

ITEM 2.     UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Recent Sales of Unregistered Securities: None.

(b) Use of Proceeds from Registered Securities: None.

(c) Purchases of Equity Securities by the Issuer and Affiliated Purchasers:

The following table reflects our purchases of common stock during each of the three months in the three-month period ended June 30, 2025:

Period	Total Number of Shares of Stock Purchased (1)	Weighted Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) that May Yet be Purchased Under the Plans or Programs
April 1, 2025 - April 30, 2025	6,205	$	31.89	—	—
May 1, 2025 - May 31, 2025	—	—		—	—
June 1, 2025 - June 30, 2025	—	—		—	—
Total	6,205	$	31.89	—	—

________________________

(1)Represents shares of common stock remitted to the Company to satisfy tax withholding obligations in connection with the distribution of, or the vesting and distribution of, restricted stock units or restricted stock in shares of common stock. The value of such shares of common stock remitted to the Company was based on the closing price of the Company’s common stock on the applicable withholding date.

ITEM 3.    DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.    MINE SAFETY DISCLOSURES

None.

ITEM 5.    OTHER INFORMATION

(a).None

(b).None

(c).During the three months ended June 30, 2025, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each such term is defined in Item 408(a) of Regulation S-K.

56

ITEM 6.     EXHIBITS

 

Exhibit Number	Description
3.(i)1	Articles of Amendment and Restatement of Kilroy Realty Corporation (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on May 21, 2020)
3.(i)2	Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)
3.(i)3	Amendment to the Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)
3.(ii)1	Ninth Amended and Restated Bylaws of Kilroy Realty Corporation (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on June 4, 2024)
3.(ii)2	Seventh Amended and Restated Agreement of Limited Partnership of Kilroy Realty, L.P. dated as of August 15, 2012, as amended (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended June 30, 2014)
31.1*	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty Corporation
31.2*	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty Corporation
31.3*	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty, L.P.
31.4*	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty, L.P.
32.1*	Section 1350 Certification of Chief Executive Officer of Kilroy Realty Corporation
32.2*	Section 1350 Certification of Chief Financial Officer of Kilroy Realty Corporation
32.3*	Section 1350 Certification of Chief Executive Officer of Kilroy Realty, L.P.
32.4*	Section 1350 Certification of Chief Financial Officer of Kilroy Realty, L.P.
101.1	The following Kilroy Realty Corporation and Kilroy Realty, L.P. financial information for the quarter ended June 30, 2025, formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations (unaudited), (iii) Consolidated Statements of Equity (unaudited), (iv) Consolidated Statements of Capital (unaudited), (v) Consolidated Statements of Cash Flows (unaudited) and (vi) Notes to the Consolidated Financial Statements (unaudited).(1)
104.1*	Cover Page Interactive Data File - The cover page interactive data file does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

_______________

*	Filed herewith.
†	Management contract or compensatory plan or arrangement.
(1)	Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933 or Section 18 of the Securities Exchange Act of 1934 and otherwise are not subject to liability under these sections.

57

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on July 29, 2025.

KILROY REALTY CORPORATION
	By:	/s/ Angela M. Aman
		Angela M. Aman Chief Executive Officer (Principal Executive Officer)
	By:	/s/ Jeffrey R. Kuehling
		Jeffrey R. Kuehling Executive Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
	By:	/s/ Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

58

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on July 29, 2025.

KILROY REALTY, L.P.
	BY: KILROY REALTY CORPORATION
	Its general partner
	By:	/s/ Angela M. Aman
		Angela M. Aman Chief Executive Officer (Principal Executive Officer)
	By:	/s/ Jeffrey R. Kuehling
		Jeffrey R. Kuehling Executive Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)
	By:	/s/ Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

 

59

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Angela M. Aman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Angela M. Aman

Angela M. Aman

Chief Executive Officer

Date: July 29, 2025

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Jeffrey R. Kuehling, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Jeffrey R. Kuehling

Jeffrey R. Kuehling

Executive Vice President, Chief Financial Officer and Treasurer

Date: July 29, 2025

EX-31.3

Exhibit 31.3

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Angela M. Aman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Angela M. Aman

Angela M. Aman

Chief Executive Officer

Kilroy Realty Corporation, sole general partner of
  Kilroy Realty, L.P.

Date: July 29, 2025

EX-31.4

Exhibit 31.4

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Jeffrey R. Kuehling, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ Jeffrey R. Kuehling

Jeffrey R. Kuehling

Executive Vice President, Chief Financial Officer and Treasurer

Kilroy Realty Corporation, sole general partner of
Kilroy Realty, L.P.

Date: July 29, 2025

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation (the “Company”) hereby certifies, to her knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer
Date:	July 29, 2025

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of the Company or Kilroy Realty, L.P. under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation (the “Company”) hereby certifies, to his knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer and Treasurer
Date:	July 29, 2025

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of the Company or Kilroy Realty, L.P. under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.3

Exhibit 32.3

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation, the sole general partner of Kilroy Realty, L.P. (the “Operating Partnership”), hereby certifies, to her knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Operating Partnership for the quarter ended June 30, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.
Date:	July 29, 2025

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.4

Exhibit 32.4

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation, the sole general partner of Kilroy Realty, L.P. (the “Operating Partnership”), hereby certifies, to his knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Operating Partnership for the quarter ended June 30, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer and Treasurer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.
Date:	July 29, 2025

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2025	Jul. 25, 2025
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2025
Document Transition Report	false
Entity File Number	1-12675
Entity Registrant Name	KILROY REALTY CORPORATION
Entity Incorporation, State Code	MD
Entity Tax Identification Number	95-4598246
Entity Address, Address Line One	12200 W. Olympic Boulevard
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90064
City Area Code	310
Local Phone Number	481-8400
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NYSE
Trading Symbol	KRC
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		118,294,328
Entity Central Index Key	0001025996
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q2
Amendment Flag	false
Kilroy Realty L.P.
Entity Information [Line Items]
Entity File Number	000-54005
Entity Registrant Name	KILROY REALTY, L.P.
Entity Incorporation, State Code	DE
Entity Tax Identification Number	95-4612685
Title of 12(g) Security	Common Units Representing Limited Partnership Interests
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001493976
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
REAL ESTATE ASSETS:
Land and improvements	$ 1,627,754	$ 1,750,820
Buildings and improvements	8,427,405	8,598,751
Undeveloped land and construction in progress	2,364,938	2,309,624
Total real estate assets held for investment	12,420,097	12,659,195
Accumulated depreciation and amortization	(2,877,165)	(2,824,616)
Total real estate assets held for investment, net	9,542,932	9,834,579
REAL ESTATE AND OTHER ASSETS HELD FOR SALE, NET (Note 2)	255,795	0
CASH AND CASH EQUIVALENTS (Note 13)	193,129	165,690
MARKETABLE SECURITIES (Note 10)	31,629	27,965
CURRENT RECEIVABLES, NET	11,718	11,033
DEFERRED RENT RECEIVABLES, NET	436,964	451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,266	225,937
RIGHT OF USE GROUND LEASE ASSETS	128,674	129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 3)	58,725	51,935
TOTAL ASSETS	10,867,832	10,898,357
LIABILITIES:
Secured debt, net (Notes 4 and 10)	595,212	598,199
Unsecured debt, net (Notes 4 and 10)	4,002,507	3,999,566
Accounts payable, accrued expenses, and other liabilities	273,600	285,011
Ground lease liabilities	128,030	128,422
Accrued dividends and distributions	64,985	64,850
Deferred revenue and acquisition-related intangible liabilities, net	131,606	142,437
Rents received in advance and tenant security deposits	73,561	71,003
Liabilities related to real estate assets held for sale (Note 2)	4,887	0
Total liabilities	5,274,388	5,289,488
COMMITMENTS AND CONTINGENCIES (Note 9)
Stockholders’ Equity (Note 5):
Common stock, $.01 par value, 280,000,000 shares authorized, 118,294,328 and 118,046,674 shares issued and outstanding	1,183	1,181
Additional paid-in capital	5,216,320	5,209,653
Retained earnings	148,952	171,212
Total stockholders’ equity	5,366,455	5,382,046
Noncontrolling Interests (Notes 1 and 6):
Common units of the Operating Partnership	52,192	52,472
Noncontrolling interests in consolidated property partnerships	174,797	174,351
Total noncontrolling interests	226,989	226,823
Total equity	5,593,444	5,608,869
TOTAL LIABILITIES AND EQUITY	$ 10,867,832	$ 10,898,357

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	280,000,000	280,000,000
Common stock, issued (in shares)	118,294,328	118,046,674
Common stock, outstanding (in shares)	118,294,328	118,046,674

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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 8)	$ 285,071	$ 275,919	$ 551,315	$ 550,809
Other property income	4,821	4,812	9,421	8,503
Total revenues	289,892	280,731	560,736	559,312
EXPENSES
Property expenses	58,575	59,279	117,289	116,599
Real estate taxes	26,765	29,009	55,130	58,248
Ground leases	3,019	2,996	6,039	5,748
General and administrative expenses (Note 7)	18,475	18,824	35,376	36,116
Leasing costs	2,277	2,119	5,150	4,398
Depreciation and amortization	87,625	87,151	174,744	175,182
Total expenses	196,736	199,378	393,728	396,291
OTHER INCOME (EXPENSES)
Interest income	512	10,084	1,646	23,274
Interest expense (Note 4)	(30,844)	(36,763)	(61,992)	(75,634)
Other income (expense) (Note 1)	190	(127)	33	(414)
Gain on sale of depreciable operating property (Note 2)	16,554	0	16,554	0
Total other expenses	(13,588)	(26,806)	(43,759)	(52,774)
NET INCOME	79,568	54,547	123,249	110,247
Net income attributable to noncontrolling common units of the Operating Partnership	(663)	(458)	(1,038)	(960)
Net income attributable to noncontrolling interests in consolidated property partnerships	(10,456)	(4,878)	(14,754)	(10,156)
Total income attributable to noncontrolling interests	(11,119)	(5,336)	(15,792)	(11,116)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 68,449	$ 49,211	$ 107,457	$ 99,131
Net income available to common stockholders per share – basic (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Net income available to common stockholders per share – diluted (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83
Weighted average shares of common stock outstanding – basic (in shares)	118,285,328	117,375,262	118,240,208	117,356,464
Weighted average shares of common stock outstanding – diluted (in shares)	118,683,337	117,663,190	118,673,935	117,810,298

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CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Total Stock- holders’ Equity	Common Stock	Additional Paid-in Capital	Retained Earnings	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2023			117,239,558
Beginning balance at Dec. 31, 2023	$ 5,659,693	$ 5,428,161	$ 1,173	$ 5,205,839	$ 221,149	$ 231,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	55,700	49,920			49,920	5,780
Issuance of share-based compensation awards	4,017	4,017		4,017
Non-cash amortization of share-based compensation	4,727	4,727		4,727
Settlement of restricted stock units for shares of common stock (in shares)			217,496
Settlement of restricted stock units for shares of common stock	0		$ 2	(2)
Repurchase of common stock and restricted stock units (in shares)			(90,649)
Repurchase of common stock and restricted stock units	(5,898)	(5,898)	$ (1)	(5,897)
Distributions to noncontrolling interests in consolidated property partnerships	(6,898)					(6,898)
Adjustment for noncontrolling interest	0	69		69		(69)
Dividends declared per common share and common unit ($0.54 per share/unit)	(68,610)	(67,989)			(67,989)	(621)
Ending balance (in shares) at Mar. 31, 2024			117,366,405
Ending balance at Mar. 31, 2024	5,642,731	5,413,007	$ 1,174	5,208,753	203,080	229,724
Beginning balance (in shares) at Dec. 31, 2023			117,239,558
Beginning balance at Dec. 31, 2023	5,659,693	5,428,161	$ 1,173	5,205,839	221,149	231,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	110,247
Ending balance (in shares) at Jun. 30, 2024			117,385,231
Ending balance at Jun. 30, 2024	5,634,258	5,405,669	$ 1,174	5,216,699	187,796	228,589
Beginning balance (in shares) at Mar. 31, 2024			117,366,405
Beginning balance at Mar. 31, 2024	5,642,731	5,413,007	$ 1,174	5,208,753	203,080	229,724
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	54,547	49,211			49,211	5,336
Issuance of share-based compensation awards	1,085	1,085		1,085
Non-cash amortization of share-based compensation	6,942	6,942		6,942
Settlement of restricted stock units for shares of common stock (in shares)			19,395
Settlement of restricted stock units for shares of common stock	0
Repurchase of common stock and restricted stock units (in shares)			(569)
Repurchase of common stock and restricted stock units	(20)	(20)		(20)
Distributions to noncontrolling interests in consolidated property partnerships	(5,911)					(5,911)
Adjustment for noncontrolling interest	0	(61)		(61)		61
Dividends declared per common share and common unit ($0.54 per share/unit)	(65,116)	(64,495)			(64,495)	(621)
Ending balance (in shares) at Jun. 30, 2024			117,385,231
Ending balance at Jun. 30, 2024	$ 5,634,258	5,405,669	$ 1,174	5,216,699	187,796	228,589
Beginning balance (in shares) at Dec. 31, 2024	118,046,674		118,046,674
Beginning balance at Dec. 31, 2024	$ 5,608,869	5,382,046	$ 1,181	5,209,653	171,212	226,823
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,681	39,008			39,008	4,673
Issuance of share-based compensation awards	1,476	1,476		1,476
Non-cash amortization of share-based compensation	5,176	5,176		5,176
Settlement of restricted stock units for shares of common stock (in shares)			377,801
Settlement of restricted stock units for shares of common stock	0		$ 4	(4)
Repurchase of common stock and restricted stock units (in shares)			(155,716)
Repurchase of common stock and restricted stock units	(6,009)	(6,009)	$ (2)	(6,007)
Distributions to noncontrolling interests in consolidated property partnerships	(7,234)					(7,234)
Adjustment for noncontrolling interest	0	121		121		(121)
Dividends declared per common share and common unit ($0.54 per share/unit)	(65,974)	(65,353)			(65,353)	(621)
Ending balance (in shares) at Mar. 31, 2025			118,268,759
Ending balance at Mar. 31, 2025	$ 5,579,985	5,356,465	$ 1,183	5,210,415	144,867	223,520
Beginning balance (in shares) at Dec. 31, 2024	118,046,674		118,046,674
Beginning balance at Dec. 31, 2024	$ 5,608,869	5,382,046	$ 1,181	5,209,653	171,212	226,823
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 123,249
Ending balance (in shares) at Jun. 30, 2025	118,294,328		118,294,328
Ending balance at Jun. 30, 2025	$ 5,593,444	5,366,455	$ 1,183	5,216,320	148,952	226,989
Beginning balance (in shares) at Mar. 31, 2025			118,268,759
Beginning balance at Mar. 31, 2025	5,579,985	5,356,465	$ 1,183	5,210,415	144,867	223,520
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	79,568	68,449			68,449	11,119
Issuance of share-based compensation awards	477	477		477
Non-cash amortization of share-based compensation	5,670	5,670		5,670
Settlement of restricted stock units for shares of common stock (in shares)			31,774
Settlement of restricted stock units for shares of common stock	0
Repurchase of common stock and restricted stock units (in shares)			(6,205)
Repurchase of common stock and restricted stock units	(197)	(197)		(197)
Distributions to noncontrolling interests in consolidated property partnerships	(7,074)					(7,074)
Adjustment for noncontrolling interest	0	(45)		(45)		45
Dividends declared per common share and common unit ($0.54 per share/unit)	$ (64,985)	(64,364)			(64,364)	(621)
Ending balance (in shares) at Jun. 30, 2025	118,294,328		118,294,328
Ending balance at Jun. 30, 2025	$ 5,593,444	$ 5,366,455	$ 1,183	$ 5,216,320	$ 148,952	$ 226,989

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CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024
Statement of Stockholders' Equity [Abstract]
Dividends declared per share of common stock and common unit (in dollars per share)	$ 0.54	$ 0.54	$ 0.54	$ 0.54

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 123,249	$ 110,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	171,978	172,049
Depreciation of non-real estate furniture, fixtures, and equipment	2,766	3,133
Revenues deemed uncollectible	820	3,889
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(7,458)	(9,327)
Straight-line rents, net	7,967	(2,755)
Non-cash amortization of net below market rents	(1,691)	(1,790)
Non-cash amortization of deferred financing costs and debt discounts	2,397	3,317
Non-cash amortization of share-based compensation awards	8,509	8,691
Amortization of right of use ground lease assets	548	528
Gain on sale of depreciable operating property	(16,554)	0
Net change in other operating assets	(15,347)	(13,097)
Net change in other operating liabilities	3,483	(18,323)
Net cash provided by operating activities	280,667	256,562
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development and redevelopment properties and undeveloped land	(81,743)	(180,571)
Expenditures for operating properties and other capital assets	(46,621)	(35,195)
Net proceeds received from dispositions (Note 2)	28,021	0
Maturity of certificates of deposit	0	256,581
Net cash (used in) provided by investing activities	(100,343)	40,815
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(14,324)	(12,825)
Dividends and distributions paid to common stockholders and common unitholders	(128,855)	(127,930)
Repurchase of common stock and restricted stock units	(6,206)	(5,918)
Financing costs	(407)	(17,517)
Principal payments and repayments of secured debt	(3,093)	(2,973)
Proceeds from the issuance of unsecured debt	0	395,516
Repayments of unsecured debt	0	(200,000)
Net cash (used in) provided by financing activities	(152,885)	28,353
Net increase in cash and cash equivalents and restricted cash	27,439	325,730
Cash and cash equivalents and restricted cash, beginning of period	165,690	510,163
Cash and cash equivalents and restricted cash, end of period	$ 193,129	$ 835,893

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CONSOLIDATED BALANCE SHEETS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
REAL ESTATE ASSETS:
Land and improvements	$ 1,627,754	$ 1,750,820
Buildings and improvements	8,427,405	8,598,751
Undeveloped land and construction in progress	2,364,938	2,309,624
Total real estate assets held for investment	12,420,097	12,659,195
Accumulated depreciation and amortization	(2,877,165)	(2,824,616)
Total real estate assets held for investment, net	9,542,932	9,834,579
REAL ESTATE AND OTHER ASSETS HELD FOR SALE, NET (Note 2)	255,795	0
CASH AND CASH EQUIVALENTS (Note 13)	193,129	165,690
MARKETABLE SECURITIES (Note 10)	31,629	27,965
CURRENT RECEIVABLES, NET	11,718	11,033
DEFERRED RENT RECEIVABLES, NET	436,964	451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,266	225,937
RIGHT OF USE GROUND LEASE ASSETS	128,674	129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 3)	58,725	51,935
TOTAL ASSETS	10,867,832	10,898,357
LIABILITIES:
Secured debt, net (Notes 4 and 10)	595,212	598,199
Unsecured debt, net (Notes 4 and 10)	4,002,507	3,999,566
Accounts payable, accrued expenses, and other liabilities	273,600	285,011
Ground lease liabilities	128,030	128,422
Accrued distributions	64,985	64,850
Deferred revenue and acquisition-related intangible liabilities, net	131,606	142,437
Rents received in advance and tenant security deposits	73,561	71,003
Liabilities related to real estate assets held for sale (Note 2)	4,887	0
Total liabilities	5,274,388	5,289,488
COMMITMENTS AND CONTINGENCIES (Note 9)
CAPITAL:
TOTAL LIABILITIES AND EQUITY	10,867,832	10,898,357
Kilroy Realty L.P.
REAL ESTATE ASSETS:
Land and improvements	1,627,754	1,750,820
Buildings and improvements	8,427,405	8,598,751
Undeveloped land and construction in progress	2,364,938	2,309,624
Total real estate assets held for investment	12,420,097	12,659,195
Accumulated depreciation and amortization	(2,877,165)	(2,824,616)
Total real estate assets held for investment, net	9,542,932	9,834,579
REAL ESTATE AND OTHER ASSETS HELD FOR SALE, NET (Note 2)	255,795	0
CASH AND CASH EQUIVALENTS (Note 13)	193,129	165,690
MARKETABLE SECURITIES (Note 10)	31,629	27,965
CURRENT RECEIVABLES, NET	11,718	11,033
DEFERRED RENT RECEIVABLES, NET	436,964	451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET	208,266	225,937
RIGHT OF USE GROUND LEASE ASSETS	128,674	129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 3)	58,725	51,935
TOTAL ASSETS	10,867,832	10,898,357
LIABILITIES:
Secured debt, net (Notes 4 and 10)	595,212	598,199
Unsecured debt, net (Notes 4 and 10)	4,002,507	3,999,566
Accounts payable, accrued expenses, and other liabilities	273,600	285,011
Ground lease liabilities	128,030	128,422
Accrued distributions	64,985	64,850
Deferred revenue and acquisition-related intangible liabilities, net	131,606	142,437
Rents received in advance and tenant security deposits	73,561	71,003
Liabilities related to real estate assets held for sale (Note 2)	4,887	0
Total liabilities	5,274,388	5,289,488
COMMITMENTS AND CONTINGENCIES (Note 9)
CAPITAL:
Partner's Capital - Common units, 118,294,328 and 118,046,674 held by the general partner and 1,150,574 held by common limited partners issued and outstanding	5,418,647	5,434,518
Noncontrolling interests in consolidated property partnerships (Note 1)	174,797	174,351
Total capital	5,593,444	5,608,869
TOTAL LIABILITIES AND EQUITY	$ 10,867,832	$ 10,898,357

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CONSOLIDATED BALANCE SHEETS (KILROY REALTY, L.P.)(Parenthetical) - Common Units - Kilroy Realty L.P. - shares	Jun. 30, 2025	Dec. 31, 2024
General partner, units issued (in shares)	118,294,328	118,046,674
General partners, units outstanding (in shares)	118,294,328	118,046,674
Limited partners, units issued (in shares)	1,150,574	1,150,574
Limited partners, units outstanding (in shares)	1,150,574	1,150,574

XML

CONSOLIDATED STATEMENTS OF OPERATIONS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 8)	$ 285,071	$ 275,919	$ 551,315	$ 550,809
Other property income	4,821	4,812	9,421	8,503
Total revenues	289,892	280,731	560,736	559,312
EXPENSES
Property expenses	58,575	59,279	117,289	116,599
Real estate taxes	26,765	29,009	55,130	58,248
Ground leases	3,019	2,996	6,039	5,748
General and administrative expenses (Note 7)	18,475	18,824	35,376	36,116
Leasing costs	2,277	2,119	5,150	4,398
Depreciation and amortization	87,625	87,151	174,744	175,182
Total expenses	196,736	199,378	393,728	396,291
OTHER INCOME (EXPENSES)
Interest income	512	10,084	1,646	23,274
Interest expense (Note 4)	(30,844)	(36,763)	(61,992)	(75,634)
Other income (expense) (Note 1)	190	(127)	33	(414)
Gain on sale of depreciable operating property (Note 2)	16,554	0	16,554	0
Total other expenses	(13,588)	(26,806)	(43,759)	(52,774)
NET INCOME	79,568	54,547	123,249	110,247
Net income attributable to noncontrolling interests in consolidated property partnerships	(11,119)	(5,336)	(15,792)	(11,116)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 68,449	$ 49,211	$ 107,457	$ 99,131
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83
Weighted average common units outstanding – basic (in shares)	118,285,328	117,375,262	118,240,208	117,356,464
Weighted average common units outstanding – diluted (in shares)	118,683,337	117,663,190	118,673,935	117,810,298
Kilroy Realty L.P.
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 8)	$ 285,071	$ 275,919	$ 551,315	$ 550,809
Other property income	4,821	4,812	9,421	8,503
Total revenues	289,892	280,731	560,736	559,312
EXPENSES
Property expenses	58,575	59,279	117,289	116,599
Real estate taxes	26,765	29,009	55,130	58,248
Ground leases	3,019	2,996	6,039	5,748
General and administrative expenses (Note 7)	18,475	18,824	35,376	36,116
Leasing costs	2,277	2,119	5,150	4,398
Depreciation and amortization	87,625	87,151	174,744	175,182
Total expenses	196,736	199,378	393,728	396,291
OTHER INCOME (EXPENSES)
Interest income	512	10,084	1,646	23,274
Interest expense (Note 4)	(30,844)	(36,763)	(61,992)	(75,634)
Other income (expense) (Note 1)	190	(127)	33	(414)
Gain on sale of depreciable operating property (Note 2)	16,554	0	16,554	0
Total other expenses	(13,588)	(26,806)	(43,759)	(52,774)
NET INCOME	79,568	54,547	123,249	110,247
Net income attributable to noncontrolling interests in consolidated property partnerships	(10,456)	(4,878)	(14,754)	(10,156)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 69,112	$ 49,669	$ 108,495	$ 100,091
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83
Weighted average common units outstanding – basic (in shares)	119,435,902	118,525,836	119,390,782	118,507,038
Weighted average common units outstanding – diluted (in shares)	119,833,911	118,813,764	119,824,509	118,960,872

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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 79,568	$ 43,681	$ 54,547	$ 55,700	$ 123,249	$ 110,247
Non-cash amortization of share-based compensation	5,670	5,176	6,942	4,727
Distributions to noncontrolling interests in consolidated property partnerships	(7,074)	(7,234)	(5,911)	(6,898)
Noncontrolling Interests in Consolidated Property Partnerships
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	11,119	4,673	5,336	5,780
Distributions to noncontrolling interests in consolidated property partnerships	(7,074)	(7,234)	(5,911)	(6,898)
Kilroy Realty L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	5,579,985	5,608,869	5,642,731	5,659,693	5,608,869	5,659,693
Net income	79,568	43,681	54,547	55,700	123,249	110,247
Issuance of share-based compensation awards	477	1,476	1,085	4,017
Non-cash amortization of share-based compensation	5,670	5,176	6,942	4,727
Repurchase of common units and restricted stock units	(197)	(6,009)	(20)	(5,898)
Contributions from noncontrolling interests in consolidated property partnerships	0
Distributions to noncontrolling interests in consolidated property partnerships	(7,074)	(7,234)	(5,911)	(6,898)
Distributions declared per common unit ($0.54 per unit)	(64,985)	(65,974)	(65,116)	(68,610)
Ending balance	$ 5,593,444	$ 5,579,985	$ 5,634,258	$ 5,642,731	$ 5,593,444	$ 5,634,258
Kilroy Realty L.P. | Partners’ Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in shares)	119,419,333	119,197,248	118,516,979	118,390,132	119,197,248	118,390,132
Beginning balance	$ 5,408,570	$ 5,434,518	$ 5,466,094	$ 5,481,436	$ 5,434,518	$ 5,481,436
Net income	69,112	39,383	49,669	50,422
Issuance of share-based compensation awards	477	1,476	1,085	4,017
Non-cash amortization of share-based compensation	$ 5,670	$ 5,176	$ 6,942	$ 4,727
Settlement of restricted stock units (in shares)	31,774	377,801	19,395	217,496
Repurchase of common units and restricted stock units (in shares)	(6,205)	(155,716)	(569)	(90,649)
Repurchase of common units and restricted stock units	$ (197)	$ (6,009)	$ (20)	$ (5,898)
Distributions declared per common unit ($0.54 per unit)	$ (64,985)	$ (65,974)	$ (65,116)	$ (68,610)
Ending balance (in shares)	119,444,902	119,419,333	118,535,805	118,516,979	119,444,902	118,535,805
Ending balance	$ 5,418,647	$ 5,408,570	$ 5,458,654	$ 5,466,094	$ 5,418,647	$ 5,458,654
Kilroy Realty L.P. | Noncontrolling Interests in Consolidated Property Partnerships
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	171,415	174,351	176,637	178,257	174,351	178,257
Net income	10,456	4,298	4,878	5,278
Distributions to noncontrolling interests in consolidated property partnerships	(7,074)	(7,234)	(5,911)	(6,898)
Ending balance	$ 174,797	$ 171,415	$ 175,604	$ 176,637	$ 174,797	$ 175,604

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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024
Kilroy Realty L.P.
Dividends declared per common unit (in dollars per unit)	$ 0.54	$ 0.54	$ 0.54	$ 0.54

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CONSOLIDATED STATEMENTS OF CASH FLOWS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 123,249	$ 110,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	171,978	172,049
Depreciation of non-real estate furniture, fixtures, and equipment	2,766	3,133
Revenues deemed uncollectible	820	3,889
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(7,458)	(9,327)
Straight-line rents, net	7,967	(2,755)
Non-cash amortization of net below market rents	(1,691)	(1,790)
Non-cash amortization of deferred financing costs and debt discounts	2,397	3,317
Non-cash amortization of share-based compensation awards	8,509	8,691
Amortization of right of use ground lease assets	548	528
Gain on sale of depreciable operating property	(16,554)	0
Net change in other operating assets	(15,347)	(13,097)
Net change in other operating liabilities	3,483	(18,323)
Net cash provided by operating activities	280,667	256,562
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development and redevelopment properties and undeveloped land	(81,743)	(180,571)
Expenditures for operating properties and other capital assets	(46,621)	(35,195)
Net proceeds received from dispositions (Note 2)	28,021	0
Maturity of certificates of deposit	0	256,581
Net cash (used in) provided by investing activities	(100,343)	40,815
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(14,324)	(12,825)
Distributions paid to common unitholders	(128,855)	(127,930)
Repurchase of common stock and restricted stock units	(6,206)	(5,918)
Financing costs	(407)	(17,517)
Principal payments and repayments of secured debt	(3,093)	(2,973)
Proceeds from the issuance of unsecured debt	0	395,516
Repayments of unsecured debt	0	(200,000)
Net cash (used in) provided by financing activities	(152,885)	28,353
Net increase in cash and cash equivalents and restricted cash	27,439	325,730
Cash and cash equivalents and restricted cash, beginning of period	165,690	510,163
Cash and cash equivalents and restricted cash, end of period	193,129	835,893
Kilroy Realty L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	123,249	110,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	171,978	172,049
Depreciation of non-real estate furniture, fixtures, and equipment	2,766	3,133
Revenues deemed uncollectible	820	3,889
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(7,458)	(9,327)
Straight-line rents, net	7,967	(2,755)
Non-cash amortization of net below market rents	(1,691)	(1,790)
Non-cash amortization of deferred financing costs and debt discounts	2,397	3,317
Non-cash amortization of share-based compensation awards	8,509	8,691
Amortization of right of use ground lease assets	548	528
Gain on sale of depreciable operating property	(16,554)	0
Net change in other operating assets	(15,347)	(13,097)
Net change in other operating liabilities	3,483	(18,323)
Net cash provided by operating activities	280,667	256,562
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development and redevelopment properties and undeveloped land	(81,743)	(180,571)
Expenditures for operating properties and other capital assets	(46,621)	(35,195)
Net proceeds received from dispositions (Note 2)	28,021	0
Maturity of certificates of deposit	0	256,581
Net cash (used in) provided by investing activities	(100,343)	40,815
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(14,324)	(12,825)
Distributions paid to common unitholders	(128,855)	(127,930)
Repurchase of common stock and restricted stock units	(6,206)	(5,918)
Financing costs	(407)	(17,517)
Principal payments and repayments of secured debt	(3,093)	(2,973)
Proceeds from the issuance of unsecured debt	0	395,516
Repayments of unsecured debt	0	(200,000)
Net cash (used in) provided by financing activities	(152,885)	28,353
Net increase in cash and cash equivalents and restricted cash	27,439	325,730
Cash and cash equivalents and restricted cash, beginning of period	165,690	510,163
Cash and cash equivalents and restricted cash, end of period	$ 193,129	$ 835,893

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Organization, Ownership, and Basis of Presentation

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Ownership, and Basis of Presentation

Organization, Ownership, and Basis of Presentation

Kilroy Realty Corporation (the “Company”) is a self-administered real estate investment trust (“REIT”) active in premier office, life science, and mixed-use property types in the United States. The Company’s approach to modern business environments is designed to drive creativity and productivity for some of the world’s leading technology, entertainment, life science, and business services companies and we have been consistently recognized for our leadership in sustainability and building operations. The Company owns, develops, acquires, and manages real estate assets, consisting primarily of premier properties in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin, which are markets it believes have strategic advantages and strong barriers to entry. The Company qualifies as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). The Company’s common stock is publicly traded on the New York Stock Exchange (“NYSE”) under the ticker symbol “KRC.”

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the “Operating Partnership”) and conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context otherwise requires, the terms “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” refer to Kilroy Realty Corporation and its consolidated subsidiaries, including the Operating Partnership, and the term “Operating Partnership” refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees, and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio includes all of our properties with the exception of development and redevelopment properties currently committed for construction, under construction, or in the tenant improvement phase, undeveloped land, and real estate assets held for sale, if any. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs pursuant to a formal plan to change its use, the intended result of which is a higher economic return on the property. We define a property in the tenant improvement phase as a development or redevelopment property where the project has reached “cold shell condition” and is ready for tenant improvements, which may require additional major base building modifications before being placed in service. Projects in the tenant improvement phase are moved into our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the projects or phases of projects are placed in service.

Our stabilized portfolio of operating properties was comprised of the following properties at June 30, 2025:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied (1)
Stabilized Office Properties (2)	118	16,395,491	440	80.8	%

________________________

(1)Represents economic occupancy for space where we have achieved revenue recognition for the associated lease agreements.

(2)Includes stabilized life science and retail space.

	Number of Properties	Number of Units	2025 Average Occupancy
Stabilized Residential Properties	3	1,001	94.5	%

As of June 30, 2025, the following properties were excluded from our stabilized portfolio:

	Number of Properties / Projects	Actual / Estimated Rentable Square Feet (1)
Properties held for sale (2)	1	663,460
In-process development projects - tenant improvement	1	875,000
In-process redevelopment projects - tenant improvement	2	100,000

________________________

(1)For the property classified as held for sale, represents actual rentable square feet and consists of four buildings. For the in-process development and redevelopment projects in the tenant improvement phase, represents estimated rentable square feet upon completion.

(2)See Note 2 “Dispositions and Real Estate Held for Sale” for additional information.

Our stabilized portfolio also excludes our future development pipeline, which, as of June 30, 2025, was comprised of eight potential future development sites, representing approximately 64 gross acres of undeveloped land.

As of June 30, 2025, all of our properties and development and redevelopment projects, and all of our business was conducted in the state of California, with the exception of ten stabilized office properties and one future development project located in the state of Washington, and one stabilized office property and one future development project located in Austin, Texas. All of our properties, and development and redevelopment projects are 100% owned, excluding the following four office properties owned by the following three consolidated property partnerships:

Consolidated Property Partnership	Property Address	Ownership Interest (1)
100 First Street Member, LLC	100 1st Street, San Francisco, CA 94105	56%
303 Second Street Member, LLC	303 2nd Street, San Francisco, CA 94107	56%
Redwood City Partners, LLC	900 Jefferson Avenue, Redwood City, CA 94063	93%
	900 Middlefield Road, Redwood City, CA 94063

________________________

(1)The remaining interests in all three property partnerships were owned by unrelated third parties.

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 100 First Street Member, LLC (“100 First LLC”), 303 Second Street Member, LLC (“303 Second LLC”), Redwood City Partners, LLC (“Redwood LLC”), and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 100 First LLC, 303 Second LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of June 30, 2025, the Company owned an approximate 99.0% common general partnership interest in the Operating Partnership. The remaining approximate 1.0% common limited partnership interest in the Operating Partnership as of June 30, 2025 was owned by non-affiliated investors. Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. Generally, the number of common units held by the Company is equivalent to the number of outstanding shares of the Company’s common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company’s common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership’s Seventh Amended and Restated Agreement of Limited Partnership, as amended (the “Partnership Agreement”). With the exception of the Operating Partnership and our consolidated property partnerships, all of our subsidiaries are wholly-owned.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2024.

Commencing January 1, 2025, the Company began presenting a new line item, Other income (expense), which includes tax expenses, acquisition and disposition expenses, and income or expenses related to environmental and sustainability initiatives, which were previously included in General and administrative expenses. Historical amounts for General and administrative expenses and Other income (expense) have been revised to conform with the current period presentation.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary, as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights. At June 30, 2025, the consolidated financial statements of the Company included two VIEs in addition to the Operating Partnership: 100 First LLC and 303 Second LLC. At June 30, 2025, the Company and the Operating Partnership were determined to be the primary beneficiaries of these two VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. As of June 30, 2025, the two VIEs’ total assets,

liabilities, and noncontrolling interests included on our consolidated balance sheet were approximately $403.1 million (of which $326.5 million related to real estate held for investment), approximately $17.7 million, and approximately $169.9 million, respectively. Revenues, income, and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle their contractual obligations, which primarily consist of operating expenses, capital expenditures, and required distributions.

At December 31, 2024, the consolidated financial statements of the Company included three VIEs in addition to the Operating Partnership: 100 First LLC, 303 Second LLC, and one entity established during the third quarter of 2024 to facilitate a potential future Section 1031 Exchange. At December 31, 2024, the Company and the Operating Partnership were determined to be the primary beneficiaries of these three VIEs since we had the ability to control the activities that most significantly impact each of the VIEs’ economic performance. At December 31, 2024, the impact of consolidating the VIEs increased the Company’s total assets, liabilities, and noncontrolling interests on our consolidated balance sheet by approximately $435.5 million (of which $357.3 million related to real estate held for investment), approximately $18.0 million, and approximately $169.4 million, respectively.

Recently Issued Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 “Income Taxes (Topic 740): Improvements to Tax Disclosures.” The ASU is effective for annual periods beginning after December 15, 2024. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03 “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” The ASU is effective for annual periods beginning after December 15, 2026. The Company is currently evaluating whether the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

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Dispositions and Real Estate Held for Sale

6 Months Ended

Jun. 30, 2025

Discontinued Operations and Disposal Groups [Abstract]

Dispositions and Real Estate Held for Sale

Dispositions and Real Estate Held for Sale

Operating Property Dispositions

The following table summarizes the one operating property sold during the six months ended June 30, 2025:

Property	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (in millions) (1)
501 Santa Monica Boulevard	June	1	78,509	$	40.0

___________________________

(1)Represents gross sales price before the impact of broker commissions, closing costs, and purchase price credits.

The total gain on the sale of the operating property sold during the six months ended June 30, 2025 was $16.6 million.    

Real Estate Assets Held for Sale

During the three months ended June 30, 2025, we classified a four-building office property in Silicon Valley as Held for Sale. The property totals 663,460 square feet and is expected to close late in the third quarter for a gross sales price of $365.0 million.

The major classes of assets and liabilities of the property classified as held for sale as of June 30, 2025 were as follows:

Real estate and other assets held for sale, net	(in thousands)
Land and improvements	$	118,514
Buildings and improvements	194,357
Total real estate held for sale	312,871
Accumulated depreciation and amortization	(72,526)
Total real estate held for sale, net	240,345
Current receivables, net	36
Deferred rent receivables, net	6,525
Deferred leasing costs and acquisition-related intangibles, net	7,782
Prepaid expenses and other assets, net	1,107
Total real estate and other assets held for sale, net	$	255,795
Liabilities related to real estate assets held for sale
Accounts payable, accrued expenses, and other liabilities	$	591
Deferred revenue and acquisition-related intangible liabilities, net	1,091
Rents received in advance and tenant security deposits	3,205
Total liabilities related to real estate assets held for sale	$	4,887

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Prepaid Expenses and Other Assets, Net

6 Months Ended

Jun. 30, 2025

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Assets, Net

Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at June 30, 2025 and December 31, 2024:

	June 30, 2025		December 31, 2024
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	25,300	$	26,316
Prepaid expenses, net	18,369		8,470
Deferred financing costs, net (1)	10,921		12,692
Other assets	4,135		4,457
Total prepaid expenses and other assets, net	$	58,725	$	51,935

________________________

(1)Refer to Note 4 “Secured and Unsecured Debt of the Operating Partnership” for a discussion of the deferred financing costs for the unsecured revolving credit facility.

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Secured and Unsecured Debt of the Operating Partnership

6 Months Ended

Jun. 30, 2025

Kilroy Realty L.P.

Debt Instrument [Line Items]

Secured and Unsecured Debt of the Operating Partnership

Secured and Unsecured Debt of the Operating Partnership

The Company generally guarantees all of the Operating Partnership’s unsecured debt obligations, including the unsecured revolving credit facility, the unsecured term loan facility, and all of the unsecured senior notes.

Unsecured Revolving Credit Facility and Term Loan Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of June 30, 2025 and December 31, 2024:

	Unsecured Revolving Credit Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.65		%	5.69		%
Facility fee-annual rate (3)	0.250%
Unamortized deferred financing costs (3)	$	10,921		$	12,692
Maturity date (4)	July 31, 2028

________________________

(1)Remaining and total borrowing capacity are further reduced by the amount of our outstanding letters of credit which total approximately $5.2 million as of June 30, 2025 and December 31, 2024. We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $500.0 million under an accordion feature pursuant to the terms of the unsecured revolving credit facility.

(2)Our unsecured revolving credit facility interest rate was calculated using the Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% (“Adjusted SOFR”) and a margin of 1.100% based on our credit rating as of June 30, 2025 and December 31, 2024. We may be entitled to a temporary 0.01% reduction in the interest rate provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions.

(3)Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024. These costs are included in Prepaid expenses and other assets, net on our consolidated balance sheets, which remain to be amortized through the maturity date of our unsecured revolving credit facility.

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

The Operating Partnership intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, including to finance development and redevelopment expenditures, to fund potential acquisitions, to repay long-term debt, and to supplement cash balances in response to market conditions.

The following table summarizes the balance and terms of our 2024 Term Loan Facility as of June 30, 2025:

	2024 Term Loan Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings (1)	$	200,000		$	200,000
Interest rate (2)	5.62		%	5.70		%
Unamortized deferred financing costs (3)	$	419		$	1,229
Maturity date (4)	October 3, 2025

____________________

(1)We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $130.0 million as of June 30, 2025 and December 31, 2024, under an accordion feature pursuant to the terms of the 2024 Term Loan Facility.

(2)Our 2024 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 1.200% based on our credit rating as of June 30, 2025 and December 31, 2024.

(3)We incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024, which remain to be amortized through the maturity date of the 2024 Term Loan Facility.

(4)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

Financial Covenants and Restrictions

The unsecured revolving credit facility, unsecured term loan facility, unsecured senior notes, including the private placement notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a maximum ratio of secured debt to total asset value, a minimum unsecured debt ratio, and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full principal balance of the associated debt becoming immediately due and payable. We were in compliance with all of our financial covenants as of June 30, 2025.

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of June 30, 2025:

Year	(in thousands)
Remaining 2025	$	603,153
2026	401,317
2027	249,125
2028	400,000
2029	475,000
2030	500,000
Thereafter	2,000,000
Total aggregate principal value	4,628,595
Less: unamortized net discounts and deferred financing costs (1)	(30,876)
Total debt, net	$	4,597,719

________________________ 

(1)Includes $23.1 million of unamortized deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt, and $7.7 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in Prepaid expenses and other assets, net on our consolidated balance sheets.

Capitalized Interest

The following table sets forth gross interest expense and capitalized interest for the three and six months ended June 30, 2025 and 2024. The interest expense capitalized was recorded as a cost of development and redevelopment and increased the carrying value of undeveloped land and construction in progress currently under construction.

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Gross interest expense	$	52,177	$	57,278	$	103,873	$	115,956
Capitalized interest	(21,333)		(20,515)		(41,881)		(40,322)
Interest expense	$	30,844	$	36,763	$	61,992	$	75,634

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Stockholders' Equity of the Company

6 Months Ended

Jun. 30, 2025

Equity [Abstract]

Stockholders' Equity of the Company

Stockholders’ Equity of the Company

At-The-Market Stock Offering Program

Under our at-the-market (“ATM”) stock offering program (the “2024 ATM Program”), which commenced in March 2024, we may offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with the 2024 ATM Program, the Company may also, at its discretion, enter into forward equity sale agreements. The use of forward equity sale agreements allows the Company to lock in a share price on the sale of shares of our common stock at the time an agreement is executed, but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date. The Company did not have any outstanding forward equity sale agreements to be settled at June 30, 2025. Since commencement of the 2024 ATM Program, we have not completed any sales of common stock.

Share Repurchase Program

Under our current share repurchase program, which commenced in February 2024 (the “Share Repurchase Program”), we are authorized to repurchase shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price, and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. Since commencement of the Share Repurchase Program, we have not completed any common stock repurchases.

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Noncontrolling Interests on the Company's Consolidated Financial Statements

6 Months Ended

Jun. 30, 2025

Noncontrolling Interest [Abstract]

Noncontrolling Interests on the Company's Consolidated Financial Statements

Noncontrolling Interests on the Company’s Consolidated Financial Statements

Common Units of the Operating Partnership

The Company owned an approximate 99.0% common general partnership interest in the Operating Partnership as of June 30, 2025 and December 31, 2024. The remaining approximate 1.0% common limited partnership interest as of June 30, 2025 and December 31, 2024 was owned by non-affiliated investors in the form of noncontrolling common units. There were 1,150,574 common units outstanding held by these investors as of June 30, 2025 and December 31, 2024.

The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $0.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $40.1 million and $46.8 million as of June 30, 2025 and December 31, 2024, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is generally expected that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

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Share-Based Compensation

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Share-Based Compensation

Share-Based Compensation

Share-Based Incentive Compensation Plan

As of June 30, 2025, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). The Company has a currently effective registration statement registering 12.6 million shares of our common stock for possible issuance under our 2006 Plan. As of June 30, 2025, approximately 1.9 million shares were available for grant under the 2006 Plan. The calculation of shares available for grant is presented after taking into account a reserve for a sufficient number of shares to cover the vesting and payment of 2006 Plan awards that were outstanding on that date, including performance-based vesting awards at (i) levels actually achieved for the performance conditions (as defined below) for which the performance period has been completed, and (ii) at maximum levels for the other performance and market conditions (as defined below) for awards still in a performance period.

2025 Share-Based Compensation Grants

In February 2025, the Executive Compensation Committee of the Company’s Board of Directors awarded 535,398 restricted stock units to certain officers of the Company under the 2006 Plan, which included 308,671 RSUs (at the target level of performance) that are subject to time, market, and/or performance-based vesting requirements (the “2025 Performance-Based RSUs”) and 226,727 RSUs that are subject to time-based vesting requirements (the “2025 Time-Based RSUs”). Each RSU granted is entitled to earn dividend equivalents in the form of RSUs that vest upon vesting of the underlying RSU award.

2025 Performance-Based RSU Grant

The 2025 Performance-Based RSUs are scheduled to vest at the end of a three year period (consisting of calendar years 2025-2027. A target number of 2025 Performance-Based RSUs were awarded, and the final number of 2025 Performance-Based RSUs that vest (which may be more or less than the target number) will be based upon (i) during the first calendar year of the three year performance measurement period, the achievement of pre-set FFO per share goals that applies to 100% of the Performance-Based RSUs awarded (the “FFO Performance Condition”), and (ii) a performance measure that applies to 50% of the award based upon a measure of the Company’s average net debt to EBITDAre ratio for the three year performance period (the “Net Debt to EBITDAre Ratio Performance Condition”), and a market measure that applies to the other 50% of the award based upon the relative ranking of the Company’s total stockholder return for the three year performance period compared to the total stockholder returns of an established comparison group of companies over the same period (the “Market Condition”). The 2025 Performance-Based RSUs are also subject to a three year service vesting provision (the “service vesting condition”) and are scheduled to cliff vest on the date the final vesting percentage is determined following the end of the three year performance period under the awards. The number of 2025 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2025 Performance-Based RSUs granted based upon the levels of achievement for the FFO Performance Condition, the Net Debt to EBITDAre Ratio Performance Condition, the Market Condition, and the extent to which the service vesting condition is satisfied. The estimate of the number of 2025 Performance-Based RSUs earned is evaluated quarterly during the performance period based on our estimate for each of the performance conditions measured against the applicable goals.

Compensation expense for the 2025 Performance-Based RSUs is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service period. During the three and six months ended June 30, 2025, we recognized $0.8 million and $1.2 million of compensation expense, respectively, for the 2025 Performance-Based RSUs assuming the 2025 FFO Performance Condition is met at 100% of target level of achievement and the 2025 Net Debt to EBITDAre Ratio Performance Condition is met at 100% of the target level of achievement. In the event we achieve a lower level of performance or fail to meet the FFO Performance Condition, we would reverse a portion or all of the $0.8 million and $1.2 million of compensation expense.

Each 2025 Performance-Based RSU represents the right to receive one share of our common stock in the future subject to, and as modified by, the Company’s level of achievement of the applicable performance and market conditions. The fair value of the portion of the award subject to the Net Debt to EBITDAre Ratio Performance Condition was calculated using the closing price of the Company’s common stock on the valuation date noted below. The fair value of the portion of the award subject to the Market Condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in the following grant date fair value per share.

	Fair Value Assumptions
Valuation date	February 14, 2025
Fair value per share on valuation date (1)	$37.76
Expected share price volatility	38.0%
Risk-free interest rate	4.35%

________________________ 

(1)For one participant, the fair value per share on the valuation date for their 2025 Performance-Based RSUs is $38.93.

The computation of expected volatility was based on a blend of the historical volatility of our shares of common stock over a period of twice the remaining performance period as of the grant date and implied volatility data based on the observed pricing of six month publicly-traded options on shares of our common stock. The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury STRIP securities in effect at February 14, 2025.

The fair value of the 2025 Performance-Based RSU grant as of the valuation date noted above, based on a target level of achievement, was $11.2 million. For the three and six months ended June 30, 2025, we recorded compensation expense based upon the grant date fair value per share for each component multiplied by the estimated number of RSUs to be earned.

2025 Time-Based RSU Grants

The 2025 Time-Based RSUs are scheduled to vest in three equal annual installments beginning on January 5, 2026 through January 5, 2028. Compensation expense for the 2025 Time-Based RSUs is recognized on a straight-line basis over the requisite service period, which is generally the explicit service period. Each 2025 Time-Based RSU represents the right to receive one share of our common stock in the future, subject to continued employment through the applicable vesting date, unless accelerated upon separation of employment, provided certain conditions are met. The total grant date fair value of the 2025 Time-Based RSU awards was $7.9 million, which was based on the $34.91 closing share price of the Company’s common stock on the NYSE on the February 14, 2025 grant date.

2024 and 2023 Performance-Based RSUs

Consistent with the 2025 Performance-Based RSU grant discussed above, the final number of 2024 and 2023 Performance-Based RSUs that vest will be based upon (i) the FFO Performance Condition that applies to 100% of the Performance-Based RSUs awarded as determined at the end of the first calendar year of the performance measurement period, and (ii) the Net Debt to EBITDA Ratio Performance Condition that applies to 50% of the award and the Market Condition that applies to the other 50% of the award, both of which are based on the full three-year performance measurement period. The 2024 FFO Performance Condition was achieved at 175% of the target level of achievement for one participant and 150% for all other participants. The 2023 FFO Performance Condition was achieved at 150% of the target level of achievement for all participants.

Compensation cost for the 2024 Performance-Based RSUs for the three and six months ended June 30, 2025 assumes the 2024 Net Debt to EBITDA Ratio Performance Condition is met at 158% of the target level of achievement for one participant and 139% for all other participants. Compensation cost for the 2023 Performance-Based RSUs for the three and six months ended June 30, 2025 assumes the 2023 Net Debt to EBITDA Ratio Performance Condition is met at 150% of the target level of achievement.

Share-Based Compensation Cost Recorded During the Period

The total compensation cost for all share-based compensation programs was $5.7 million and $6.9 million for the three months ended June 30, 2025 and 2024, respectively, and $10.8 million and $11.7 million for the six months ended June 30, 2025 and 2024, respectively. Of the total share-based compensation costs, $1.1 million and $2.3 million were capitalized as part of real estate assets for the three and six months ended June 30, 2025, respectively, and $1.6 million and $3.0 million was capitalized as part of real estate assets for the three and six months ended June 30, 2024, respectively. As of June 30, 2025, there was approximately $33.4 million of total unrecognized compensation cost related to nonvested RSUs granted under share-based compensation arrangements. Such amount is based in part upon the estimated future outcome of the performance metrics as of June 30, 2025, and the actual compensation cost ultimately recognized could increase or decrease from this estimate based upon actual performance results. These costs are expected to be recognized over a weighted-average period of 2.0 years. The remaining compensation cost related to these nonvested RSU awards had been recognized in periods prior to June 30, 2025.

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Rental Income and Future Minimum Rent

6 Months Ended

Jun. 30, 2025

Leases [Abstract]

Rental Income and Future Minimum Rent

Rental Income and Future Minimum Rent

Our rental income is primarily comprised of payments defined under leases and generally are subject to scheduled fixed increases. Additionally, rental income includes variable payments for tenant reimbursements of property-related expenses and payments based on a percentage of tenant sales.

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability recoveries or reserves for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Fixed lease payments	$	236,910	$	226,469	$	457,925	$	456,784
Variable lease payments	48,086		49,456		94,507		97,914
Net collectability recoveries (reserves) (1)	75		(6)		(1,117)		(3,889)
Total rental income	$	285,071	$	275,919	$	551,315	$	550,809

_____________________

(1)Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants, including recognition of deferred rent balances associated with tenants moved to / restored from a cash basis of revenue recognition and allowances for uncollectible receivables.

We have operating leases with tenants that expire at various dates through 2055 and may be subject to scheduled fixed increases and future renewal options. Generally, the leases grant tenants renewal options. Leases also provide for additional rents based on certain operating expenses. Future contractual minimum rent under operating leases, which includes amounts contractually due from leases that are on a cash basis of reporting due to creditworthiness considerations, as of June 30, 2025 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2025	$	389,469
2026	768,433
2027	746,063
2028	701,989
2029	609,393
2030	527,275
Thereafter	1,117,031
Total (1)	$	4,859,653

_____________________

(1)Excludes residential leases, leases at properties classified as held for sale, and leases with a term of one year or less.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Development and Construction Commitments

As of June 30, 2025, we had commitments of approximately $158.0 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating and development and redevelopment properties.

Environmental Matters and Asset Retirement Obligations

As of June 30, 2025 and December 31, 2024, we had the following accrued environmental remediation liabilities in connection with certain of our in-process and future development projects, and the following asset retirement obligations associated with certain of our stabilized portfolio properties and in-process and future development projects:

	June 30, 2025		December 31, 2024
	(in thousands)
Environmental liabilities	$	70,163	$	72,003
Asset retirement obligations	$	4,440	$	4,634

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Fair Value Measurements and Disclosures

6 Months Ended

Jun. 30, 2025

Fair Value Disclosures [Abstract]

Fair Value Measurements and Disclosures

Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value

The only assets we record at fair value on a recurring basis in our consolidated financial statements are the marketable securities related to our Deferred Compensation Plan. The following table sets forth the fair value of our Deferred Compensation Plan assets as of June 30, 2025 and December 31, 2024:

	Fair Value (Level 1) (1)
	June 30, 2025		December 31, 2024
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	31,629	$	27,965

________________________

(1)    Based on quoted prices in active markets for identical securities.

(2)    The Deferred Compensation Plan assets are held in a limited rabbi trust.

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of June 30, 2025 and December 31, 2024:

	June 30, 2025				December 31, 2024
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Liabilities
Secured debt, net	$	595,212	$	581,153	$	598,199	$	569,061
Unsecured debt, net	$	4,002,507	$	3,750,933	$	3,999,566	$	3,681,914

Fair value is calculated using Level 2 inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

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Net Income Available to Common Stockholders Per Share of the Company

6 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Net Income Available to Common Stockholders Per Share of the Company

Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common stockholders	$	68,221	$	48,391	$	107,017	$	97,512
Denominator:
Basic weighted average vested shares outstanding	118,285,328		117,375,262		118,240,208		117,356,464
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested shares and common stock equivalents outstanding	118,683,337		117,663,190		118,673,935		117,810,298
Basic earnings per share:
Net income available to common stockholders per share	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per share:
Net income available to common stockholders per share	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including RSUs, are considered in our diluted earnings per share calculation for the three and six months ended June 30, 2025 and 2024. Certain market measure-based RSUs are not included in dilutive securities for the three and six months ended June 30, 2025 and 2024, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the six months ended June 30, 2024, as they were anti-dilutive. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership

6 Months Ended

Jun. 30, 2025

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common stockholders	$	68,221	$	48,391	$	107,017	$	97,512
Denominator:
Basic weighted average vested shares outstanding	118,285,328		117,375,262		118,240,208		117,356,464
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested shares and common stock equivalents outstanding	118,683,337		117,663,190		118,673,935		117,810,298
Basic earnings per share:
Net income available to common stockholders per share	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per share:
Net income available to common stockholders per share	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including RSUs, are considered in our diluted earnings per share calculation for the three and six months ended June 30, 2025 and 2024. Certain market measure-based RSUs are not included in dilutive securities for the three and six months ended June 30, 2025 and 2024, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the six months ended June 30, 2024, as they were anti-dilutive. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

Kilroy Realty L.P.

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	69,112	$	49,669	$	108,495	$	100,091
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common unitholders	$	68,884	$	48,849	$	108,055	$	98,472
Denominator:
Basic weighted average vested units outstanding	119,435,902		118,525,836		119,390,782		118,507,038
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested units and common unit equivalents outstanding	119,833,911		118,813,764		119,824,509		118,960,872
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

    Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including RSUs, are considered in our diluted earnings per share calculation for the three and six months ended June 30, 2025 and 2024. Certain market measure-based RSUs are not included in dilutive securities for the three and six months ended June 30, 2025 and 2024, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the six months ended June 30, 2024, as they were anti-dilutive. See Note 7 “Share-Based Compensation” for additional information regarding share-based compensation.

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Supplemental Cash Flow Information of the Company

6 Months Ended

Jun. 30, 2025

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information of the Company

Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,985	$	65,118

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

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Supplemental Cash Flow Information of the Operating Partnership

6 Months Ended

Jun. 30, 2025

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,985	$	65,118

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

Kilroy Realty L.P.

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flows Information of the Operating Partnership

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,985	$	65,118

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

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Segments

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Segments

Segments

Operating segments are defined as components of an enterprise that engage in business activities from which they may earn revenues and incur expenses and about which discrete financial information is available that is evaluated regularly by the Chief Operating Decision Maker (“CODM”). The CODM decides how resources are allocated and assesses performance on a recurring basis, at least quarterly. Our CODM is our CEO, who evaluates the operating performance and financial results of our consolidated portfolio based on Net Income through the monthly operations meetings.

We conduct our business in one operating segment and therefore have one reportable segment. Asset information by segment is not reported because the Company does not use this measure to assess performance.

Our reportable segment derives its revenues primarily from rental revenue and other related income through the leasing of office space to tenants. We recognize revenue from base rent (fixed lease payments), additional rent (variable lease payments, which consist of amounts due from tenants for common area maintenance, real estate taxes, and other recoverable costs), parking, and other lease-related revenue.

The following table presents Net Income for the three and six months June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
REVENUES:
Rental income	$	285,071	$	275,919	$	551,315	$	550,809
Other property income	4,821		4,812		9,421		8,503
Total revenues	289,892		280,731		560,736		559,312
EXPENSES:
Property expenses	58,575		59,279		117,289		116,599
Real estate taxes	26,765		29,009		55,130		58,248
Ground leases	3,019		2,996		6,039		5,748
General and administrative expenses	18,475		18,824		35,376		36,116
Leasing costs	2,277		2,119		5,150		4,398
Depreciation and amortization	87,625		87,151		174,744		175,182
Total expenses	196,736		199,378		393,728		396,291
OTHER INCOME (EXPENSES):
Interest income	512		10,084		1,646		23,274
Interest expense	(30,844)		(36,763)		(61,992)		(75,634)
Other income (expense)	190		(127)		33		(414)
Gain on sale of depreciable operating property	16,554		—		16,554		—
Total other expenses	(13,588)		(26,806)		(43,759)		(52,774)
NET INCOME	$	79,568	$	54,547	$	123,249	$	110,247

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Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Organization, Ownership, and Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation Policy

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 100 First Street Member, LLC (“100 First LLC”), 303 Second Street Member, LLC (“303 Second LLC”), Redwood City Partners, LLC (“Redwood LLC”), and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 100 First LLC, 303 Second LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

Basis of Accounting

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2024.

Commencing January 1, 2025, the Company began presenting a new line item, Other income (expense), which includes tax expenses, acquisition and disposition expenses, and income or expenses related to environmental and sustainability initiatives, which were previously included in General and administrative expenses. Historical amounts for General and administrative expenses and Other income (expense) have been revised to conform with the current period presentation.

Variable Interest Entities

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary, as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights.

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 “Income Taxes (Topic 740): Improvements to Tax Disclosures.” The ASU is effective for annual periods beginning after December 15, 2024. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03 “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” The ASU is effective for annual periods beginning after December 15, 2026. The Company is currently evaluating whether the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

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Organization, Ownership, and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Real Estate Properties

Our stabilized portfolio of operating properties was comprised of the following properties at June 30, 2025:

	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage  Occupied (1)
Stabilized Office Properties (2)	118	16,395,491	440	80.8	%

________________________

(1)Represents economic occupancy for space where we have achieved revenue recognition for the associated lease agreements.

(2)Includes stabilized life science and retail space.

	Number of Properties	Number of Units	2025 Average Occupancy
Stabilized Residential Properties	3	1,001	94.5	%

As of June 30, 2025, the following properties were excluded from our stabilized portfolio:

	Number of Properties / Projects	Actual / Estimated Rentable Square Feet (1)
Properties held for sale (2)	1	663,460
In-process development projects - tenant improvement	1	875,000
In-process redevelopment projects - tenant improvement	2	100,000

________________________

(1)For the property classified as held for sale, represents actual rentable square feet and consists of four buildings. For the in-process development and redevelopment projects in the tenant improvement phase, represents estimated rentable square feet upon completion.

(2)See Note 2 “Dispositions and Real Estate Held for Sale” for additional information.

Schedule of Consolidated Property Partnership Ownership Percentage

Consolidated Property Partnership	Property Address	Ownership Interest (1)
100 First Street Member, LLC	100 1st Street, San Francisco, CA 94105	56%
303 Second Street Member, LLC	303 2nd Street, San Francisco, CA 94107	56%
Redwood City Partners, LLC	900 Jefferson Avenue, Redwood City, CA 94063	93%
	900 Middlefield Road, Redwood City, CA 94063

________________________

(1)The remaining interests in all three property partnerships were owned by unrelated third parties.

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Dispositions and Real Estate Held for Sale (Tables)

6 Months Ended

Jun. 30, 2025

Discontinued Operations and Disposal Groups [Abstract]

Schedule of operating property dispositions and real estate held for sale

The following table summarizes the one operating property sold during the six months ended June 30, 2025:

Property	Month of Disposition	Number of Buildings	Rentable Square Feet	Sales Price (in millions) (1)
501 Santa Monica Boulevard	June	1	78,509	$	40.0

___________________________

(1)Represents gross sales price before the impact of broker commissions, closing costs, and purchase price credits.

During the three months ended June 30, 2025, we classified a four-building office property in Silicon Valley as Held for Sale. The property totals 663,460 square feet and is expected to close late in the third quarter for a gross sales price of $365.0 million.

The major classes of assets and liabilities of the property classified as held for sale as of June 30, 2025 were as follows:

Real estate and other assets held for sale, net	(in thousands)
Land and improvements	$	118,514
Buildings and improvements	194,357
Total real estate held for sale	312,871
Accumulated depreciation and amortization	(72,526)
Total real estate held for sale, net	240,345
Current receivables, net	36
Deferred rent receivables, net	6,525
Deferred leasing costs and acquisition-related intangibles, net	7,782
Prepaid expenses and other assets, net	1,107
Total real estate and other assets held for sale, net	$	255,795
Liabilities related to real estate assets held for sale
Accounts payable, accrued expenses, and other liabilities	$	591
Deferred revenue and acquisition-related intangible liabilities, net	1,091
Rents received in advance and tenant security deposits	3,205
Total liabilities related to real estate assets held for sale	$	4,887

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Prepaid Expenses and Other Assets, Net (Tables)

6 Months Ended

Jun. 30, 2025

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at June 30, 2025 and December 31, 2024:

	June 30, 2025		December 31, 2024
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	25,300	$	26,316
Prepaid expenses, net	18,369		8,470
Deferred financing costs, net (1)	10,921		12,692
Other assets	4,135		4,457
Total prepaid expenses and other assets, net	$	58,725	$	51,935

________________________

(1)Refer to Note 4 “Secured and Unsecured Debt of the Operating Partnership” for a discussion of the deferred financing costs for the unsecured revolving credit facility.

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Secured and Unsecured Debt of the Operating Partnership (Tables) - Kilroy Realty L.P.

6 Months Ended

Jun. 30, 2025

Debt Instrument [Line Items]

Schedule of Unsecured Revolving Credit Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of June 30, 2025 and December 31, 2024:

	Unsecured Revolving Credit Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.65		%	5.69		%
Facility fee-annual rate (3)	0.250%
Unamortized deferred financing costs (3)	$	10,921		$	12,692
Maturity date (4)	July 31, 2028

________________________

(1)Remaining and total borrowing capacity are further reduced by the amount of our outstanding letters of credit which total approximately $5.2 million as of June 30, 2025 and December 31, 2024. We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $500.0 million under an accordion feature pursuant to the terms of the unsecured revolving credit facility.

(2)Our unsecured revolving credit facility interest rate was calculated using the Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% (“Adjusted SOFR”) and a margin of 1.100% based on our credit rating as of June 30, 2025 and December 31, 2024. We may be entitled to a temporary 0.01% reduction in the interest rate provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions.

(3)Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024. These costs are included in Prepaid expenses and other assets, net on our consolidated balance sheets, which remain to be amortized through the maturity date of our unsecured revolving credit facility.

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

The following table summarizes the balance and terms of our 2024 Term Loan Facility as of June 30, 2025:

	2024 Term Loan Facility
	June 30, 2025			December 31, 2024
	($ in thousands)
Outstanding borrowings (1)	$	200,000		$	200,000
Interest rate (2)	5.62		%	5.70		%
Unamortized deferred financing costs (3)	$	419		$	1,229
Maturity date (4)	October 3, 2025

____________________

(1)We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $130.0 million as of June 30, 2025 and December 31, 2024, under an accordion feature pursuant to the terms of the 2024 Term Loan Facility.

(2)Our 2024 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 1.200% based on our credit rating as of June 30, 2025 and December 31, 2024.

(3)We incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility in 2024, which remain to be amortized through the maturity date of the 2024 Term Loan Facility.

(4)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

Schedule of Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of June 30, 2025:

Year	(in thousands)
Remaining 2025	$	603,153
2026	401,317
2027	249,125
2028	400,000
2029	475,000
2030	500,000
Thereafter	2,000,000
Total aggregate principal value	4,628,595
Less: unamortized net discounts and deferred financing costs (1)	(30,876)
Total debt, net	$	4,597,719

________________________ 

(1)Includes $23.1 million of unamortized deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt, and $7.7 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in Prepaid expenses and other assets, net on our consolidated balance sheets.

Schedule of Capitalized Interest and Loan Fees

The following table sets forth gross interest expense and capitalized interest for the three and six months ended June 30, 2025 and 2024. The interest expense capitalized was recorded as a cost of development and redevelopment and increased the carrying value of undeveloped land and construction in progress currently under construction.

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Gross interest expense	$	52,177	$	57,278	$	103,873	$	115,956
Capitalized interest	(21,333)		(20,515)		(41,881)		(40,322)
Interest expense	$	30,844	$	36,763	$	61,992	$	75,634

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Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Fair Value Assumptions

The fair value of the portion of the award subject to the Market Condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in the following grant date fair value per share.

	Fair Value Assumptions
Valuation date	February 14, 2025
Fair value per share on valuation date (1)	$37.76
Expected share price volatility	38.0%
Risk-free interest rate	4.35%

________________________ 

(1)For one participant, the fair value per share on the valuation date for their 2025 Performance-Based RSUs is $38.93.

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Rental Income and Future Minimum Rent (Tables)

6 Months Ended

Jun. 30, 2025

Leases [Abstract]

Schedule of Rental Income

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability recoveries or reserves for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
Fixed lease payments	$	236,910	$	226,469	$	457,925	$	456,784
Variable lease payments	48,086		49,456		94,507		97,914
Net collectability recoveries (reserves) (1)	75		(6)		(1,117)		(3,889)
Total rental income	$	285,071	$	275,919	$	551,315	$	550,809

_____________________

(1)Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants, including recognition of deferred rent balances associated with tenants moved to / restored from a cash basis of revenue recognition and allowances for uncollectible receivables.

Schedule of Future Contractual Minimum Rent Under Operating Lease

Future contractual minimum rent under operating leases, which includes amounts contractually due from leases that are on a cash basis of reporting due to creditworthiness considerations, as of June 30, 2025 for future periods is summarized as follows:

Year Ending	(in thousands)
Remaining 2025	$	389,469
2026	768,433
2027	746,063
2028	701,989
2029	609,393
2030	527,275
Thereafter	1,117,031
Total (1)	$	4,859,653

_____________________

(1)Excludes residential leases, leases at properties classified as held for sale, and leases with a term of one year or less.

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

Schedule of Accrued Environmental Remediation Liabilities

As of June 30, 2025 and December 31, 2024, we had the following accrued environmental remediation liabilities in connection with certain of our in-process and future development projects, and the following asset retirement obligations associated with certain of our stabilized portfolio properties and in-process and future development projects:

	June 30, 2025		December 31, 2024
	(in thousands)
Environmental liabilities	$	70,163	$	72,003
Asset retirement obligations	$	4,440	$	4,634

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Fair Value Measurements and Disclosures (Tables)

6 Months Ended

Jun. 30, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value of the Company's Deferred Compensation Plan Assets

The following table sets forth the fair value of our Deferred Compensation Plan assets as of June 30, 2025 and December 31, 2024:

	Fair Value (Level 1) (1)
	June 30, 2025		December 31, 2024
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	31,629	$	27,965

________________________

(1)    Based on quoted prices in active markets for identical securities.

(2)    The Deferred Compensation Plan assets are held in a limited rabbi trust.

Schedule of Carrying Value and Fair Value of Other Financial Instruments

The following table sets forth the carrying value and the fair value of our other financial instruments as of June 30, 2025 and December 31, 2024:

	June 30, 2025				December 31, 2024
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Liabilities
Secured debt, net	$	595,212	$	581,153	$	598,199	$	569,061
Unsecured debt, net	$	4,002,507	$	3,750,933	$	3,999,566	$	3,681,914

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Net Income Available to Common Stockholders Per Share of the Company (Tables)

6 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Schedule of Net Income Available to Common Stockholders

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common stockholders	$	68,221	$	48,391	$	107,017	$	97,512
Denominator:
Basic weighted average vested shares outstanding	118,285,328		117,375,262		118,240,208		117,356,464
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested shares and common stock equivalents outstanding	118,683,337		117,663,190		118,673,935		117,810,298
Basic earnings per share:
Net income available to common stockholders per share	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per share:
Net income available to common stockholders per share	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Tables)

6 Months Ended

Jun. 30, 2025

Net Income Available To Common Unitholders [Line Items]

Schedule of Net Income Available to Common Stockholders

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	68,449	$	49,211	$	107,457	$	99,131
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common stockholders	$	68,221	$	48,391	$	107,017	$	97,512
Denominator:
Basic weighted average vested shares outstanding	118,285,328		117,375,262		118,240,208		117,356,464
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested shares and common stock equivalents outstanding	118,683,337		117,663,190		118,673,935		117,810,298
Basic earnings per share:
Net income available to common stockholders per share	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per share:
Net income available to common stockholders per share	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Kilroy Realty L.P.

Net Income Available To Common Unitholders [Line Items]

Schedule of Net Income Available to Common Stockholders

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	69,112	$	49,669	$	108,495	$	100,091
Allocation to participating securities (1)	(228)		(820)		(440)		(1,619)
Numerator for basic and diluted net income available to common unitholders	$	68,884	$	48,849	$	108,055	$	98,472
Denominator:
Basic weighted average vested units outstanding	119,435,902		118,525,836		119,390,782		118,507,038
Effect of dilutive securities	398,009		287,928		433,727		453,834
Diluted weighted average vested units and common unit equivalents outstanding	119,833,911		118,813,764		119,824,509		118,960,872
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.58	$	0.41	$	0.91	$	0.83
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.57	$	0.41	$	0.90	$	0.83

________________________ 

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

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Supplemental Cash Flow Information of the Company (Tables)

6 Months Ended

Jun. 30, 2025

Supplemental Cash Flow Elements [Abstract]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,985	$	65,118

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

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Supplemental Cash Flow Information of the Operating Partnership (Tables)

6 Months Ended

Jun. 30, 2025

Other Significant Noncash Transactions [Line Items]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,985	$	65,118

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

Kilroy Realty L.P.

Other Significant Noncash Transactions [Line Items]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):

	Six Months Ended June 30,
	2025		2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	$	58,692	$	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	$	4,669	$	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	32,027	$	74,624
Tenant improvements funded directly by tenants	$	1,652	$	857
Remeasurement of ground lease liability and related right of use ground lease asset	$	—	$	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,985	$	65,118

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the six months ended June 30, 2025 and 2024:

	Six Months Ended June 30,
	2025		2024
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	165,690	$	510,163
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	165,690	$	510,163
Cash and cash equivalents at end of period	$	193,129	$	835,893
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	193,129	$	835,893

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Segments (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following table presents Net Income for the three and six months June 30, 2025 and 2024:

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
	(in thousands)
REVENUES:
Rental income	$	285,071	$	275,919	$	551,315	$	550,809
Other property income	4,821		4,812		9,421		8,503
Total revenues	289,892		280,731		560,736		559,312
EXPENSES:
Property expenses	58,575		59,279		117,289		116,599
Real estate taxes	26,765		29,009		55,130		58,248
Ground leases	3,019		2,996		6,039		5,748
General and administrative expenses	18,475		18,824		35,376		36,116
Leasing costs	2,277		2,119		5,150		4,398
Depreciation and amortization	87,625		87,151		174,744		175,182
Total expenses	196,736		199,378		393,728		396,291
OTHER INCOME (EXPENSES):
Interest income	512		10,084		1,646		23,274
Interest expense	(30,844)		(36,763)		(61,992)		(75,634)
Other income (expense)	190		(127)		33		(414)
Gain on sale of depreciable operating property	16,554		—		16,554		—
Total other expenses	(13,588)		(26,806)		(43,759)		(52,774)
NET INCOME	$	79,568	$	54,547	$	123,249	$	110,247

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Organization, Ownership, and Basis of Presentation - Additional Information (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($) a property variableInterestEntity development_site property_partnership	Dec. 31, 2024 USD ($) variableInterestEntity entity
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Lease-up properties occupancy percentage	95.00%
Lease-up properties, period from the date of cessation of major base building construction activities	1 year
Assets	$ 10,867,832	$ 10,898,357
Liabilities	5,274,388	5,289,488
Noncontrolling interest in VIE	$ 174,797	$ 174,351
Entity established to facilitate potential Section 1031 Exchange | entity		1
Variable Interest Entity, Primary Beneficiary
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of VIEs | variableInterestEntity	2	3
Assets	$ 403,100	$ 435,500
Liabilities	17,700	18,000
Variable Interest Entity, Primary Beneficiary | Real Estate Investment
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Assets	$ 326,500	$ 357,300
Operating Partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	99.00%	99.00%
Operating Partnership | Non-Affiliated Investors and Former Executive Officer and Director
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	1.00%	1.00%
101 First LLC and 303 Second LLC | Variable Interest Entity, Primary Beneficiary
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling interest in VIE	$ 169,900	$ 169,400
Future Development Site
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of future development sites | development_site	8
Area of undeveloped land | a	64
Stabilized Office Properties | Washington
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | property	10
Stabilized Office Properties | Texas
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | property	1
Future Development Project | Washington
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | development_site	1
Future Development Project | Texas
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | development_site	1
Properties And Development Projects
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property ownership percentage	100.00%
Office Properties Owned By Consolidated Property Partnerships
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Buildings | property	4
Consolidated Property Partnerships
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of property partnerships | property_partnership	3

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Organization, Ownership, and Basis of Presentation - Operating Properties (Details)	6 Months Ended
	Jun. 30, 2025 ft² development_project property tenant building propertyHeldForSale
Stabilized Office Properties
Real Estate Properties [Line Items]
Number of Buildings | building	118
Rentable/Actual/Estimated Rentable Square Feet	16,395,491
Number of Tenants | tenant	440
Percentage Occupied	80.80%
Stabilized Residential Properties
Real Estate Properties [Line Items]
Number of Properties / Projects | property	3
Number of Units | property	1,001
2025 Average Occupancy	94.50%
Properties held for sale
Real Estate Properties [Line Items]
Number of Buildings | building	4
Rentable/Actual/Estimated Rentable Square Feet	663,460
Number of Properties / Projects | propertyHeldForSale	1
In-process development projects - tenant improvement
Real Estate Properties [Line Items]
Rentable/Actual/Estimated Rentable Square Feet	875,000
Number of Properties / Projects | development_project	1
In-process redevelopment projects - tenant improvement
Real Estate Properties [Line Items]
Rentable/Actual/Estimated Rentable Square Feet	100,000
Number of Properties / Projects | development_project	2

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Organization, Ownership, and Basis of Presentation - Consolidated Property Partnership Ownership Percentage (Details)	Jun. 30, 2025
100 First Street Member, LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership Interest	56.00%
303 Second Street Member, LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership Interest	56.00%
Redwood City Partners, LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership Interest	93.00%

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Dispositions and Real Estate Held for Sale - Operating Property Dispositions (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) ft² building property	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) ft² building property	Jun. 30, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of depreciable operating property	$ 16,554	$ 0	$ 16,554	$ 0
Disposal group, disposed of by sale | 501 Santa Monica Boulevard
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Properties / Projects | property	1		1
Number of Buildings | building	1		1
Rentable Square Feet | ft²	78,509		78,509
Sales price	$ 40,000		$ 40,000
Gain on sale of depreciable operating property			$ 16,600

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Dispositions and Real Estate Held for Sale - Schedule of Long-Lived Asset Held for Sale (Details) $ in Thousands	Jun. 30, 2025 USD ($) building	Dec. 31, 2024 USD ($)
Real estate assets and other assets held for sale
Deferred leasing costs and acquisition-related intangibles, net	$ 208,266	$ 225,937
Total real estate and other assets held for sale, net	255,795	0
Liabilities of real estate assets held for sale
Deferred revenue and acquisition-related intangible liabilities, net	131,606	142,437
Rents received in advance and tenant security deposits	73,561	71,003
Liabilities of real estate assets held for sale	$ 4,887	$ 0
Disposal Group, Held-for-Sale, Not Discontinued Operations | Silicon Valley
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Buildings | building	4
Sales price	$ 365,000
Real estate assets and other assets held for sale
Land and improvements	118,514
Buildings and improvements	194,357
Total real estate held for sale	312,871
Accumulated depreciation and amortization	(72,526)
Total real estate held for sale, net	240,345
Current receivables, net	36
Deferred rent receivables, net	6,525
Deferred leasing costs and acquisition-related intangibles, net	7,782
Prepaid expenses and other assets, net	1,107
Total real estate and other assets held for sale, net	255,795
Liabilities of real estate assets held for sale
Accounts payable and accrued expenses and other liabilities	591
Deferred revenue and acquisition-related intangible liabilities, net	1,091
Rents received in advance and tenant security deposits	3,205
Liabilities of real estate assets held for sale	$ 4,887

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Prepaid Expenses and Other Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Furniture, fixtures and other long-lived assets, net	$ 25,300	$ 26,316
Prepaid expenses, net	18,369	8,470
Deferred financing costs, net	10,921	12,692
Other assets	4,135	4,457
Total prepaid expenses and other assets, net	$ 58,725	$ 51,935

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Secured and Unsecured Debt of the Operating Partnership - Unsecured Senior Notes, Unsecured Revolving Credit Facility and Term Loan Facility (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($) extension_option	Dec. 31, 2024 USD ($) extension_option
Terms of the Borrowing Facilities
Unamortized deferred financing costs	$ 10,921,000	$ 12,692,000
Kilroy Realty L.P. | Revolving Credit Facility and Term Loan Facility | Adjusted SOFR | Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Variable rate (percent)	0.10%	0.10%
Kilroy Realty L.P. | Revolving Credit Facility | Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Outstanding borrowings	$ 0	$ 0
Remaining borrowing capacity	1,100,000,000	1,100,000,000
Total borrowing capacity	$ 1,100,000,000	$ 1,100,000,000
Interest rate (percent)	5.65%	5.69%
Facility fee-annual rate (percent)	0.25%	0.25%
Unamortized deferred financing costs	$ 10,921,000	$ 12,692,000
Outstanding letters of credit	5,200,000	5,200,000
Contingent additional borrowings	$ 500,000,000.0	$ 500,000,000.0
Reduction interest rate	0.01%	0.01%
Number of extension options | extension_option	2	2
Extension period (in months)	6 months	6 months
Kilroy Realty L.P. | Revolving Credit Facility | SOFR | Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Variable rate (percent)	1.10%	1.10%
Kilroy Realty L.P. | Term Loan Facility | SOFR | 2024 Term Loan Facility
Terms of the Borrowing Facilities
Variable rate (percent)	1.20%	1.20%
Kilroy Realty L.P. | Line of Credit | 2024 Term Loan Facility
Terms of the Borrowing Facilities
Outstanding borrowings	$ 200,000,000	$ 200,000,000
Interest rate (percent)	5.62%	5.70%
Unamortized deferred financing costs	$ 419,000	$ 1,229,000
Contingent additional borrowings	$ 130,000,000.0	$ 130,000,000.0
Kilroy Realty L.P. | Unsecured debt, net | 2024 Term Loan Facility
Terms of the Borrowing Facilities
Number of extension options | extension_option	2
Extension period (in months)	12 months	12 months

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Secured and Unsecured Debt of the Operating Partnership - Additional Information (Details)	Jun. 30, 2025 debt_covenant
Kilroy Realty L.P.
Debt Instrument [Line Items]
Number of noncompliant debt covenants that could require immediate repayment of full principal balance of associated debt	1

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Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Stated debt maturities and scheduled amortization payments
Unamortized debt issuance expense	$ 10,921	$ 12,692
Kilroy Realty L.P.
Stated debt maturities and scheduled amortization payments
Remaining 2025	603,153
2026	401,317
2027	249,125
2028	400,000
2029	475,000
2030	500,000
Thereafter	2,000,000
Total aggregate principal value	4,628,595
Less: unamortized net discounts and deferred financing costs	(30,876)
Total debt, net	4,597,719
Kilroy Realty L.P. | Unsecured Senior Notes
Stated debt maturities and scheduled amortization payments
Unamortized debt issuance expense	23,100
Kilroy Realty L.P. | Senior Notes
Stated debt maturities and scheduled amortization payments
Debt issuance discount	$ 7,700

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Secured and Unsecured Debt of the Operating Partnership - Capitalized Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Capitalized Interest and Loan Fees [Line Items]
Interest expense	$ 30,844	$ 36,763	$ 61,992	$ 75,634
Kilroy Realty L.P.
Capitalized Interest and Loan Fees [Line Items]
Gross interest expense	52,177	57,278	103,873	115,956
Capitalized interest	(21,333)	(20,515)	(41,881)	(40,322)
Interest expense	$ 30,844	$ 36,763	$ 61,992	$ 75,634

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Stockholders' Equity of the Company (Details) - USD ($)	Mar. 31, 2024	Feb. 29, 2024
2024 At-The-Market Program
Class of Stock [Line Items]
At the market stock offering aggregate gross sales price of common stock	$ 500,000,000.0
Share Repurchase Program
Class of Stock [Line Items]
Aggregate gross purchase price		$ 500,000,000

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Noncontrolling Interests on the Company's Consolidated Financial Statements (Details) $ / shares in Units, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($) trading_day $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
Noncontrolling Interest [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Number of trading days | trading_day	10
Aggregate value upon redemption of outstanding noncontrolling common units | $	$ 40.1	$ 46.8
Non-Affiliated Investors and Former Executive Officer and Director | Common Units
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners (in shares)	1,150,574	1,150,574
Kilroy Realty L.P. | Common Units
Noncontrolling Interest [Line Items]
Conversion ratio	1
Kilroy Realty L.P. | Common Units
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners (in shares)	1,150,574	1,150,574
Operating Partnership
Noncontrolling Interest [Line Items]
Ownership interest (percent)	99.00%	99.00%
Operating Partnership | Non-Affiliated Investors and Former Executive Officer and Director
Noncontrolling Interest [Line Items]
Ownership interest (percent)	1.00%	1.00%

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Share-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 14, 2025 USD ($) installment $ / shares shares	Feb. 28, 2025 shares	Jun. 30, 2025 USD ($) compensation_plan shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) participant compensation_plan shares	Jun. 30, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based incentive compensation plans | compensation_plan			1		1
Effective registration shares (in shares) | shares			12,600,000		12,600,000
Number of shares available for grant (in shares) | shares			1,900,000		1,900,000
Share-based compensation expense | $			$ 5.7	$ 6.9	$ 10.8	$ 11.7
Share-based compensation expense capitalized | $			1.1	$ 1.6	2.3	$ 3.0
Share-based compensation not yet recognized | $			$ 33.4		$ 33.4
Share-based compensation not yet recognized period of recognition					2 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares		535,398
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares		308,671
Vesting period					3 years
Vesting, achievement of pre-set FFO per share goals, percentage of RSUs			100.00%		100.00%
Vesting, average debt to EBIDTA ratio, percentage of RSUs			50.00%		50.00%
Vesting, market measure, percentage of RSUs			50.00%		50.00%
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares) | shares		226,727
Number of installments | installment	3
Right to receive number of shares (in shares) | shares	1
2025 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Vesting, achievement of pre-set FFO per share goals, percentage of RSUs		100.00%
Vesting, average debt to EBIDTA ratio, percentage of RSUs		50.00%
Vesting, market measure, percentage of RSUs		50.00%
Share-based compensation expense | $			$ 0.8		$ 1.2
Performance-based RSU, achievement target					100.00%
Number of shares issuable per RSU		1
Publicly-traded options, term	6 months
Fair value RSUs granted | $	$ 11.2
2025 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target					100.00%
Time-Based Restricted Stock Units (RSUs), Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value RSUs granted | $	$ 7.9
Share price (in dollars per share) | $ / shares	$ 34.91
2024 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSUs achievement target, participant one, percent					175.00%
Number of participants with compensation expense recognized on a rolling twelve-month basis | participant					1
Performance-based RSU, achievement target, all other participants, percent					150.00%
2023 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent					150.00%
2024 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSUs achievement target, participant one, percent			158.00%		158.00%
Number of participants with compensation expense recognized on a rolling twelve-month basis | participant					1
Performance-based RSU, achievement target, all other participants, percent			139.00%		139.00%
2023 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent			150.00%		150.00%

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Share-Based Compensation - Fair Value Assumptions (Details) - 2025 Performance-Based RSUs	Feb. 14, 2025 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share on valuation date (in dollars per share)	$ 37.76
Expected share price volatility	38.00%
Risk-free interest rate	4.35%
One Participant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share on valuation date (in dollars per share)	$ 38.93

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Rental Income and Future Minimum Rent - Rental Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Leases [Abstract]
Fixed lease payments	$ 236,910	$ 226,469	$ 457,925	$ 456,784
Variable lease payments	48,086	49,456	94,507	97,914
Net collectability recoveries (reserves)	75	(6)	(1,117)	(3,889)
Total rental income	$ 285,071	$ 275,919	$ 551,315	$ 550,809

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Rental Income and Future Minimum Rent - Future Contractual Minimum Rent (Details) $ in Thousands	Jun. 30, 2025 USD ($)
Future contractual minimum rent under operating lease
Remaining 2025	$ 389,469
2026	768,433
2027	746,063
2028	701,989
2029	609,393
2030	527,275
Thereafter	1,117,031
Total	$ 4,859,653

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Commitments and Contingencies - Additional Information (Details) $ in Millions	Jun. 30, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments for contracts and executed leases directly related to operating and development properties	$ 158.0

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Commitment and Contingencies - Accrued Environmental Remediation Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Environmental liabilities
Other Commitments [Line Items]
Accrued environmental remediation liabilities	$ 70,163	$ 72,003
Asset retirement obligations
Other Commitments [Line Items]
Accrued environmental remediation liabilities	$ 4,440	$ 4,634

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Fair Value Measurements and Disclosures - Assets and Liabilities Reported at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Fair value, Measurements, Recurring | Fair Value (Level 1)
Assets and Liabilities Reported at Fair Value
Deferred compensation plan assets	$ 31,629	$ 27,965

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Fair Value Measurements and Disclosures - Financial Instruments Disclosed at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Carrying Value | Secured debt, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	$ 595,212	$ 598,199
Carrying Value | Unsecured debt, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	4,002,507	3,999,566
Fair Value | Secured debt, net | Fair value (level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	581,153	569,061
Fair Value | Unsecured debt, net | Fair value (level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	$ 3,750,933	$ 3,681,914

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Net Income Available to Common Stockholders Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net income available to common stockholders	$ 68,449	$ 49,211	$ 107,457	$ 99,131
Allocation to participating securities	(228)	(820)	(440)	(1,619)
Numerator for basic and diluted net income available to common stockholders	$ 68,221	$ 48,391	$ 107,017	$ 97,512
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	118,285,328	117,375,262	118,240,208	117,356,464
Effect of dilutive securities (in shares)	398,009	287,928	433,727	453,834
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	118,683,337	117,663,190	118,673,935	117,810,298
Basic earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Diluted earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83

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Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net income available to common unitholders	$ 68,449	$ 49,211	$ 107,457	$ 99,131
Allocation to participating securities	(228)	(820)	(440)	(1,619)
Numerator for basic and diluted net income available to common stockholders	$ 68,221	$ 48,391	$ 107,017	$ 97,512
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	118,285,328	117,375,262	118,240,208	117,356,464
Effect of dilutive securities (in shares)	398,009	287,928	433,727	453,834
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	118,683,337	117,663,190	118,673,935	117,810,298
Basic earnings per unit:
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Diluted earnings per unit:
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83
Kilroy Realty L.P.
Numerator:
Net income available to common unitholders	$ 69,112	$ 49,669	$ 108,495	$ 100,091
Allocation to participating securities	(228)	(820)	(440)	(1,619)
Numerator for basic and diluted net income available to common stockholders	$ 68,884	$ 48,849	$ 108,055	$ 98,472
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	119,435,902	118,525,836	119,390,782	118,507,038
Effect of dilutive securities (in shares)	398,009	287,928	433,727	453,834
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	119,833,911	118,813,764	119,824,509	118,960,872
Basic earnings per unit:
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.58	$ 0.41	$ 0.91	$ 0.83
Diluted earnings per unit:
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.57	$ 0.41	$ 0.90	$ 0.83

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Supplemental Cash Flow Information of the Company - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	$ 39,053	$ 38,115
Cash paid for interest, net of capitalized interest of $$39,053 and $38,115 as of June 30, 2025 and 2024, respectively	58,692	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	4,669	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	32,027	74,624
Tenant improvements funded directly by tenants	1,652	857
Remeasurement of ground lease liability and related right of use ground lease asset	0	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$ 64,985	$ 65,118

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Supplemental Cash Flow Information of the Company - Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 193,129	$ 165,690	$ 835,893	$ 510,163
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	$ 193,129	$ 165,690	$ 835,893	$ 510,163

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Supplemental Cash Flow Information of the Operating Partnership - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	$ 39,053	$ 38,115
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	58,692	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	4,669	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	32,027	74,624
Tenant improvements funded directly by tenants	1,652	857
Remeasurement of ground lease liability and related right of use ground lease asset	0	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	64,985	65,118
Kilroy Realty L.P.
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	39,053	38,115
Cash paid for interest, net of capitalized interest of $39,053 and $38,115 as of June 30, 2025 and 2024, respectively	58,692	59,946
Cash paid for amounts included in the measurement of ground lease liabilities	4,669	3,525
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	32,027	74,624
Tenant improvements funded directly by tenants	1,652	857
Remeasurement of ground lease liability and related right of use ground lease asset	0	4,782
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$ 64,985	$ 65,118

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Supplemental Cash Flow Information of the Operating Partnership - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 193,129	$ 165,690	$ 835,893	$ 510,163
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	193,129	165,690	835,893	510,163
Kilroy Realty L.P.
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	193,129	165,690	835,893	510,163
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	$ 193,129	$ 165,690	$ 835,893	$ 510,163

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Segments (Details) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($) reportableSegment operatingSegment	Jun. 30, 2024 USD ($)
Segment Reporting [Abstract]
Number of operating segments | operatingSegment					1
Number of reportable segments | reportableSegment					1
REVENUES
Rental income	$ 285,071		$ 275,919		$ 551,315	$ 550,809
Other property income	4,821		4,812		9,421	8,503
Total revenues	289,892		280,731		560,736	559,312
EXPENSES:
Property expenses	58,575		59,279		117,289	116,599
Real estate taxes	26,765		29,009		55,130	58,248
Ground leases	3,019		2,996		6,039	5,748
General and administrative expenses	18,475		18,824		35,376	36,116
Leasing costs	2,277		2,119		5,150	4,398
Depreciation and amortization	87,625		87,151		174,744	175,182
Total expenses	196,736		199,378		393,728	396,291
OTHER INCOME (EXPENSES):
Interest income	512		10,084		1,646	23,274
Interest expense	(30,844)		(36,763)		(61,992)	(75,634)
Other income (expense)	190		(127)		33	(414)
Gain on sale of depreciable operating property	16,554		0		16,554	0
Total other expenses	(13,588)		(26,806)		(43,759)	(52,774)
NET INCOME	79,568	$ 43,681	54,547	$ 55,700	123,249	110,247
Office and Life Science Properties Segment
REVENUES
Rental income	285,071		275,919		551,315	550,809
Other property income	4,821		4,812		9,421	8,503
Total revenues	289,892		280,731		560,736	559,312
EXPENSES:
Property expenses	58,575		59,279		117,289	116,599
Real estate taxes	26,765		29,009		55,130	58,248
Ground leases	3,019		2,996		6,039	5,748
General and administrative expenses	18,475		18,824		35,376	36,116
Leasing costs	2,277		2,119		5,150	4,398
Depreciation and amortization	87,625		87,151		174,744	175,182
Total expenses	196,736		199,378		393,728	396,291
OTHER INCOME (EXPENSES):
Interest income	512		10,084		1,646	23,274
Interest expense	(30,844)		(36,763)		(61,992)	(75,634)
Other income (expense)	190		(127)		33	(414)
Gain on sale of depreciable operating property	16,554		0		16,554	0
Total other expenses	(13,588)		(26,806)		(43,759)	(52,774)
NET INCOME	$ 79,568		$ 54,547		$ 123,249	$ 110,247