| ☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | ||||
| For the quarterly period ended | March 31, 2026 | ||||
| ☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | ||||
| For the transition period from | to | ||||||||||

| Maryland | 23-2947217 | |||||||
| (State or other jurisdiction of | (I.R.S. Employer | |||||||
| incorporation or organization) | Identification No.) | |||||||
6711 Columbia Gateway Drive, Suite 300, Columbia, MD | 21046 | ||||
| (Address of principal executive offices) | (Zip Code) | ||||
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered | ||||||
| Common Shares of beneficial interest, $0.01 par value | CDP | New York Stock Exchange | ||||||
| Large accelerated filer | ☒ | Accelerated filer | ☐ | Non-accelerated filer | ☐ | Smaller reporting company | ☐ | Emerging growth company | ☐ | ||||||||||||||||||||||||||||||||
| PAGE | ||||||||
| March 31, 2026 | December 31, 2025 | ||||||||||
| Assets | |||||||||||
| Properties, net | |||||||||||
| Operating properties, net | $ | 3,494,556 | $ | 3,500,087 | |||||||
| Projects in development or held for future development | 308,420 | 283,390 | |||||||||
| Total properties, net | 3,802,976 | 3,783,477 | |||||||||
| Property - operating lease right-of-use assets | 48,906 | 50,383 | |||||||||
| Cash and cash equivalents | 28,580 | 274,986 | |||||||||
| Investment in unconsolidated real estate joint ventures | 35,818 | 36,368 | |||||||||
| Accounts receivable, net | 51,907 | 58,185 | |||||||||
| Deferred rent receivable | 182,647 | 177,921 | |||||||||
| Lease incentives, net | 71,879 | 72,347 | |||||||||
Deferred leasing costs (net of accumulated amortization of $45,370 and $44,127, respectively) | 76,430 | 75,052 | |||||||||
Investing receivables (net of allowance for credit losses of $3,253 and $3,575, respectively) | 69,922 | 69,856 | |||||||||
| Prepaid expenses and other assets, net | 89,844 | 103,215 | |||||||||
| Total assets | $ | 4,458,909 | $ | 4,701,790 | |||||||
| Liabilities and equity | |||||||||||
| Liabilities | |||||||||||
| Debt, net | $ | 2,546,958 | $ | 2,767,834 | |||||||
| Accounts payable and accrued expenses | 116,954 | 147,200 | |||||||||
| Rents received in advance and security deposits | 40,252 | 37,914 | |||||||||
| Dividends and distributions payable | 37,102 | 35,205 | |||||||||
| Deferred revenue associated with operating leases | 47,874 | 47,714 | |||||||||
| Property - operating lease liabilities | 43,768 | 45,012 | |||||||||
| Other liabilities | 34,230 | 33,236 | |||||||||
| Total liabilities | 2,867,138 | 3,114,115 | |||||||||
Commitments and contingencies (Note 17) | |||||||||||
| Redeemable noncontrolling interest | 25,130 | 25,506 | |||||||||
| Equity | |||||||||||
| Shareholders’ equity | |||||||||||
Common Shares of beneficial interest ($0.01 par value; 150,000,000 shares authorized; shares issued and outstanding of 113,377,523 at March 31, 2026 and 113,210,642 at December 31, 2025) | 1,134 | 1,132 | |||||||||
| Additional paid-in capital | 2,500,341 | 2,502,661 | |||||||||
| Cumulative distributions in excess of net income | (986,706) | (988,957) | |||||||||
| Accumulated other comprehensive income (loss) | 34 | (61) | |||||||||
| Total shareholders’ equity | 1,514,803 | 1,514,775 | |||||||||
| Noncontrolling interests in subsidiaries | |||||||||||
| Common units in COPT Defense Properties, L.P. (“CDPLP”) | 33,687 | 29,317 | |||||||||
| Other consolidated entities | 18,151 | 18,077 | |||||||||
| Noncontrolling interests in subsidiaries | 51,838 | 47,394 | |||||||||
| Total equity | 1,566,641 | 1,562,169 | |||||||||
| Total liabilities, redeemable noncontrolling interest, and equity | $ | 4,458,909 | $ | 4,701,790 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Revenues | |||||||||||
| Lease revenue | $ | 192,971 | $ | 175,308 | |||||||
| Other property revenue | 1,625 | 2,289 | |||||||||
| Construction contract and other service revenues | 6,041 | 10,259 | |||||||||
| Total revenues | 200,637 | 187,856 | |||||||||
| Operating expenses | |||||||||||
| Property operating expenses | 81,435 | 72,040 | |||||||||
| Depreciation and amortization associated with real estate operations | 42,685 | 39,359 | |||||||||
| Construction contract and other service expenses | 5,552 | 9,705 | |||||||||
| General, administrative, leasing, and other expenses | 12,649 | 12,156 | |||||||||
| Total operating expenses | 142,321 | 133,260 | |||||||||
| Interest expense | (23,996) | (20,504) | |||||||||
| Interest and other income, net | 3,955 | 1,568 | |||||||||
| Gain on sales of real estate | 582 | 300 | |||||||||
| Income before equity in income of unconsolidated entities and income taxes | 38,857 | 35,960 | |||||||||
| Equity in income of unconsolidated entities | 1,406 | 371 | |||||||||
| Income tax expense | (124) | (103) | |||||||||
| Net income | 40,139 | 36,228 | |||||||||
| Net income attributable to noncontrolling interests | |||||||||||
| Common units in CDPLP | (812) | (726) | |||||||||
| Other consolidated entities | (771) | (762) | |||||||||
| Net income attributable to common shareholders | $ | 38,556 | $ | 34,740 | |||||||
| Earnings per common share | |||||||||||
| Net income attributable to common shareholders - basic | $ | 0.34 | $ | 0.31 | |||||||
| Net income attributable to common shareholders - diluted | $ | 0.34 | $ | 0.31 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Net income | $ | 40,139 | $ | 36,228 | |||||||
| Other comprehensive loss | |||||||||||
| Unrealized income (loss) on interest rate derivatives | 9 | (80) | |||||||||
Reclassification adjustments on interest rate derivatives recognized in interest expense | (46) | (562) | |||||||||
| Total other comprehensive loss | (37) | (642) | |||||||||
| Comprehensive income | 40,102 | 35,586 | |||||||||
| Comprehensive income attributable to noncontrolling interests | (1,451) | (1,431) | |||||||||
| Comprehensive income attributable to common shareholders | $ | 38,651 | $ | 34,155 | |||||||
| Common Shares | Additional Paid-in Capital | Cumulative Distributions in Excess of Net Income | Accumulated Other Comprehensive (Loss) Income | Noncontrolling Interests | Total | |||||||||||||||||||||||||||||||||
| For the Three Months Ended March 31, 2025 | ||||||||||||||||||||||||||||||||||||||
Balance at December 31, 2024 (112,703,460 common shares outstanding) | $ | 1,127 | $ | 2,494,369 | $ | (1,003,401) | $ | 988 | $ | 43,510 | $ | 1,536,593 | ||||||||||||||||||||||||||
Conversion of common units to common shares (11,589 shares) | — | 156 | — | — | (156) | — | ||||||||||||||||||||||||||||||||
| Redemption of common units | — | — | — | — | (313) | (313) | ||||||||||||||||||||||||||||||||
Share-based compensation (167,266 shares issued, net of redemptions) | 2 | 1,057 | — | — | 1,883 | 2,942 | ||||||||||||||||||||||||||||||||
| Redemption of vested equity awards | — | (1,125) | — | — | — | (1,125) | ||||||||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of CDPLP | — | (2,438) | — | — | 2,438 | — | ||||||||||||||||||||||||||||||||
| Comprehensive income | — | — | 34,740 | (585) | 826 | 34,981 | ||||||||||||||||||||||||||||||||
| Dividends | — | — | (34,459) | — | — | (34,459) | ||||||||||||||||||||||||||||||||
| Distributions to owners of common units in CDPLP | — | — | — | — | (756) | (756) | ||||||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities | — | — | — | — | (7) | (7) | ||||||||||||||||||||||||||||||||
| Adjustments for changes in fair value of redeemable noncontrolling interest | — | 435 | — | — | — | 435 | ||||||||||||||||||||||||||||||||
Balance at March 31, 2025 (112,882,315 common shares outstanding) | $ | 1,129 | $ | 2,492,454 | $ | (1,003,120) | $ | 403 | $ | 47,425 | $ | 1,538,291 | ||||||||||||||||||||||||||
| For the Three Months Ended March 31, 2026 | ||||||||||||||||||||||||||||||||||||||
Balance at December 31, 2025 (113,210,642 common shares outstanding) | $ | 1,132 | $ | 2,502,661 | $ | (988,957) | $ | (61) | $ | 47,394 | $ | 1,562,169 | ||||||||||||||||||||||||||
| Redemption of common units | — | — | — | — | (126) | (126) | ||||||||||||||||||||||||||||||||
Share-based compensation (166,881 shares issued, net of redemptions) | 2 | 1,238 | — | — | 2,208 | 3,448 | ||||||||||||||||||||||||||||||||
| Redemption of vested equity awards | — | (1,542) | — | — | — | (1,542) | ||||||||||||||||||||||||||||||||
| Adjustments to noncontrolling interests resulting from changes in ownership of CDPLP | — | (2,392) | — | — | 2,392 | — | ||||||||||||||||||||||||||||||||
| Comprehensive income | — | — | 38,556 | 95 | 784 | 39,435 | ||||||||||||||||||||||||||||||||
| Dividends | — | — | (36,305) | — | — | (36,305) | ||||||||||||||||||||||||||||||||
| Distributions to owners of common units in CDPLP | — | — | — | — | (807) | (807) | ||||||||||||||||||||||||||||||||
| Distributions to noncontrolling interests in other consolidated entities | — | — | — | — | (7) | (7) | ||||||||||||||||||||||||||||||||
| Adjustments for changes in fair value of redeemable noncontrolling interest | — | 376 | — | — | — | 376 | ||||||||||||||||||||||||||||||||
Balance at March 31, 2026 (113,377,523 common shares outstanding) | $ | 1,134 | $ | 2,500,341 | $ | (986,706) | $ | 34 | $ | 51,838 | $ | 1,566,641 | ||||||||||||||||||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Cash flows from operating activities | |||||||||||
| Revenues from real estate operations received | $ | 202,255 | $ | 171,405 | |||||||
| Construction contract and other service revenues received | 9,912 | 22,223 | |||||||||
| Property operating expenses paid | (75,540) | (69,145) | |||||||||
| Construction contract and other service expenses paid | (7,756) | (12,403) | |||||||||
| General, administrative, leasing, and other expenses paid | (13,292) | (13,242) | |||||||||
| Interest expense paid | (19,029) | (20,499) | |||||||||
| Lease incentives paid | (4,517) | (8,719) | |||||||||
| Other | 4,381 | 2,456 | |||||||||
| Net cash provided by operating activities | 96,414 | 72,076 | |||||||||
| Cash flows from investing activities | |||||||||||
| Properties in development or held for future development | (60,794) | (34,886) | |||||||||
| Tenant improvements on operating properties | (12,687) | (14,484) | |||||||||
| Other capital improvements on operating properties | (6,239) | (6,939) | |||||||||
| Investing receivables funded | — | (9,259) | |||||||||
| Leasing costs paid | (6,013) | (4,363) | |||||||||
| Other | 3,433 | 385 | |||||||||
| Net cash used in investing activities | (82,300) | (69,546) | |||||||||
| Cash flows from financing activities | |||||||||||
| Proceeds from debt | |||||||||||
| Revolving Credit Facility | 212,000 | 87,000 | |||||||||
| Revolving Development Facility | 42,000 | — | |||||||||
| Repayments of debt | |||||||||||
| Revolving Credit Facility | (76,000) | (67,000) | |||||||||
| Unsecured senior notes | (400,000) | — | |||||||||
| Scheduled principal amortization | (397) | (461) | |||||||||
| Common share dividends paid | (34,555) | (33,279) | |||||||||
| Other | (3,219) | (2,441) | |||||||||
| Net cash used in financing activities | (260,171) | (16,181) | |||||||||
| Net decrease in cash and cash equivalents and restricted cash | (246,057) | (13,651) | |||||||||
| Cash and cash equivalents and restricted cash | |||||||||||
| Beginning of period | 276,431 | 39,697 | |||||||||
| End of period | $ | 30,374 | $ | 26,046 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Reconciliation of net income to net cash provided by operating activities | |||||||||||
| Net income | $ | 40,139 | $ | 36,228 | |||||||
| Adjustments to reconcile net income to net cash provided by operating activities | |||||||||||
| Depreciation and other amortization | 43,101 | 39,901 | |||||||||
| Amortization of deferred financing costs and net debt discounts | 2,049 | 1,718 | |||||||||
| Change in net deferred rent receivable and liability | (4,486) | (5,290) | |||||||||
| Gain on sales of real estate | (582) | (300) | |||||||||
| Share-based compensation | 3,186 | 2,854 | |||||||||
| Other | (648) | 980 | |||||||||
| Changes in operating assets and liabilities | |||||||||||
| Decrease (increase) in accounts receivable | 6,466 | (3,628) | |||||||||
| Decrease in lease incentives and prepaid expenses and other assets, net | 12,633 | 15,971 | |||||||||
| Decrease in accounts payable, accrued expenses, and other liabilities | (7,782) | (19,422) | |||||||||
| Increase in rents received in advance and security deposits | 2,338 | 3,064 | |||||||||
| Net cash provided by operating activities | $ | 96,414 | $ | 72,076 | |||||||
| Reconciliation of cash and cash equivalents and restricted cash | |||||||||||
| Cash and cash equivalents at beginning of period | $ | 274,986 | $ | 38,284 | |||||||
| Restricted cash at beginning of period | 1,445 | 1,413 | |||||||||
| Cash and cash equivalents and restricted cash at beginning of period | $ | 276,431 | $ | 39,697 | |||||||
| Cash and cash equivalents at end of period | $ | 28,580 | $ | 24,292 | |||||||
| Restricted cash at end of period | 1,794 | 1,754 | |||||||||
| Cash and cash equivalents and restricted cash at end of period | $ | 30,374 | $ | 26,046 | |||||||
| Supplemental schedule of non-cash investing and financing activities | |||||||||||
| Decrease in accrued capital improvements, leasing, and other investing activity costs | $ | (22,746) | $ | (9,503) | |||||||
| Recognition of finance lease right-of-use assets and related lease liabilities | $ | 398 | $ | — | |||||||
| Decrease in fair value of derivatives applied to accumulated other comprehensive income/loss and noncontrolling interests | $ | (37) | $ | (642) | |||||||
| Dividends/distributions payable | $ | 37,102 | $ | 35,208 | |||||||
| Decrease in noncontrolling interests and increase in shareholders’ equity in connection with the conversion of common units into common shares | $ | — | $ | 156 | |||||||
| Adjustments to noncontrolling interests resulting from changes in CDPLP ownership | $ | 2,392 | $ | 2,438 | |||||||
| Decrease in redeemable noncontrolling interest and increase in equity to adjust for changes in fair value of redeemable noncontrolling interest | $ | (376) | $ | (435) | |||||||
| Description | Quoted Prices in Active Markets for Identical Assets (Level 1) | Significant Other Observable Inputs (Level 2) | Significant Unobservable Inputs (Level 3) | Total | ||||||||||||||||||||||
| Assets (1) | ||||||||||||||||||||||||||
| Interest rate derivatives | $ | — | $ | 70 | $ | — | $ | 70 | ||||||||||||||||||
| March 31, 2026 | December 31, 2025 | ||||||||||
| Land | $ | 519,256 | $ | 519,256 | |||||||
| Buildings and improvements | 4,696,316 | 4,663,198 | |||||||||
| Less: Accumulated depreciation | (1,721,016) | (1,682,367) | |||||||||
| Operating properties, net | $ | 3,494,556 | $ | 3,500,087 | |||||||
| For the Three Months Ended March 31, | ||||||||||||||
| Lease Revenue | 2026 | 2025 | ||||||||||||
| Fixed | $ | 142,467 | $ | 131,691 | ||||||||||
| Variable | 50,504 | 43,617 | ||||||||||||
| $ | 192,971 | $ | 175,308 | |||||||||||
| Leases | Balance Sheet Location | March 31, 2026 | December 31, 2025 | |||||||||||||||||
| Right-of-use assets | ||||||||||||||||||||
| Operating leases - Property | Property - operating lease right-of-use assets | $ | 48,906 | $ | 50,383 | |||||||||||||||
| Finance leases - Property | 5,743 | 5,373 | ||||||||||||||||||
| Total right-of-use assets | $ | 54,649 | $ | 55,756 | ||||||||||||||||
| Lease liabilities | ||||||||||||||||||||
| Operating leases - Property | Property - operating lease liabilities | $ | 43,768 | $ | 45,012 | |||||||||||||||
| Finance leases - Property | 752 | 363 | ||||||||||||||||||
| Total lease liabilities | $ | 44,520 | $ | 45,375 | ||||||||||||||||
| Statement of Operations Location | For the Three Months Ended March 31, | |||||||||||||||||||
| Lease Cost | 2026 | 2025 | ||||||||||||||||||
| Operating lease cost | ||||||||||||||||||||
| Property leases - fixed | Property operating expenses | $ | 2,276 | $ | 2,266 | |||||||||||||||
| Property leases - variable | Property operating expenses | 27 | 27 | |||||||||||||||||
| Finance lease cost | ||||||||||||||||||||
| Amortization of property right-of-use assets | Property operating expenses | 28 | 19 | |||||||||||||||||
| Interest on lease liabilities | Interest expense | 8 | 9 | |||||||||||||||||
| $ | 2,339 | $ | 2,321 | |||||||||||||||||
| For the Three Months Ended March 31, | ||||||||||||||
| Supplemental Cash Flow Information | 2026 | 2025 | ||||||||||||
| Cash paid for amounts included in the measurement of lease liabilities | ||||||||||||||
| Operating cash flows for operating leases | $ | 2,043 | $ | 1,903 | ||||||||||
| Operating cash flows for finance leases | $ | 8 | $ | 9 | ||||||||||
| Financing cash flows for finance leases | $ | 8 | $ | 7 | ||||||||||
March 31, 2026 | ||||||||||||||
| Year Ending December 31, | Operating Leases | Finance Leases | ||||||||||||
2026 (1) | $ | 6,175 | $ | 214 | ||||||||||
| 2027 | 8,418 | 144 | ||||||||||||
| 2028 | 2,838 | 146 | ||||||||||||
| 2029 | 2,094 | 148 | ||||||||||||
| 2030 | 2,129 | 124 | ||||||||||||
| Thereafter | 151,871 | 152 | ||||||||||||
| Total lease payments | 173,525 | 928 | ||||||||||||
| Less: Amount representing interest | (129,757) | (176) | ||||||||||||
| Lease liability | $ | 43,768 | $ | 752 | ||||||||||
| Nominal Ownership % | March 31, 2026 | |||||||||||||||||||||||||||||||||||||||||||
| Date Formed | Total Assets | Encumbered Assets | Total Liabilities | Mortgage Debt | ||||||||||||||||||||||||||||||||||||||||
| Entity | Location | |||||||||||||||||||||||||||||||||||||||||||
| LW Redstone Company, LLC (1) | 3/23/2010 | 85% | Huntsville, AL | $ | 776,748 | $ | 50,397 | $ | 65,121 | $ | — | |||||||||||||||||||||||||||||||||
| Stevens Investors, LLC | 8/11/2015 | 95% | Washington, DC | 141,689 | — | 1,270 | — | |||||||||||||||||||||||||||||||||||||
| M Square Associates, LLC | 6/26/2007 | 50% | College Park, MD | 106,251 | 54,046 | 50,308 | 45,866 | |||||||||||||||||||||||||||||||||||||
| $ | 1,024,688 | $ | 104,443 | $ | 116,699 | $ | 45,866 | |||||||||||||||||||||||||||||||||||||
| Date Formed | Nominal Ownership % | Number of Properties | Carrying Value of Investment (1) | |||||||||||||||||||||||||||||
| Entity | March 31, 2026 | December 31, 2025 | ||||||||||||||||||||||||||||||
| Redshift JV LLC | 1/10/2023 | 10% | 3 | $ | 20,196 | $ | 20,767 | |||||||||||||||||||||||||
| BREIT COPT DC JV LLC | 6/20/2019 | 10% | 9 | 8,970 | 8,941 | |||||||||||||||||||||||||||
| Quark JV LLC | 12/14/2022 | 10% | 2 | 6,652 | 6,660 | |||||||||||||||||||||||||||
| B RE COPT DC JV III LLC | 6/2/2021 | 10% | 2 | (707) | (600) | |||||||||||||||||||||||||||
| B RE COPT DC JV II LLC (2) | 10/30/2020 | 10% | 8 | (23,306) | (22,243) | |||||||||||||||||||||||||||
| 24 | $ | 11,805 | $ | 13,525 | ||||||||||||||||||||||||||||
| March 31, 2026 | December 31, 2025 | |||||||||||||
| Notes receivable from the City of Huntsville | $ | 64,508 | $ | 64,461 | ||||||||||
| Other investing loans receivable | 8,667 | 8,970 | ||||||||||||
| Amortized cost basis | 73,175 | 73,431 | ||||||||||||
| Allowance for credit losses | (3,253) | (3,575) | ||||||||||||
| Investing receivables, net | $ | 69,922 | $ | 69,856 | ||||||||||
| Carrying Value (1) as of | March 31, 2026 | |||||||||||||||||||||||||
| March 31, 2026 | December 31, 2025 | |||||||||||||||||||||||||
| Stated Interest Rates | Scheduled Maturity | |||||||||||||||||||||||||
| Mortgage and Other Secured Debt | ||||||||||||||||||||||||||
| Fixed-rate mortgage debt | $ | 35,786 | $ | 36,064 | 3.82% | June 2026 | ||||||||||||||||||||
| Variable-rate secured debt | 10,080 | 10,125 | SOFR + 0.10% + 1.45% (2) | August 2026 | ||||||||||||||||||||||
| Revolving Development Facility | 138,000 | 96,000 | SOFR + 1.25% to 1.90% (3) | October 2029 (4) | ||||||||||||||||||||||
| Total mortgage and other secured debt | 183,866 | 142,189 | ||||||||||||||||||||||||
| Revolving Credit Facility | 190,000 | 54,000 | SOFR + 0.725% to 1.400% (5) | October 2029 (6) | ||||||||||||||||||||||
| Term loan facility | 49,932 | 49,911 | SOFR + 0.850% to 1.700% (7) | January 2027 (8) | ||||||||||||||||||||||
| Unsecured Senior Notes | ||||||||||||||||||||||||||
5.25%, $345,000 aggregate principal (9) | 339,956 | 339,470 | 5.25% (10) | September 2028 | ||||||||||||||||||||||
2.00%, $400,000 aggregate principal | 398,584 | 398,459 | 2.00% (11) | January 2029 | ||||||||||||||||||||||
4.50%, $400,000 aggregate principal | 394,601 | 394,326 | 4.50% (12) | October 2030 | ||||||||||||||||||||||
2.75%, $600,000 aggregate principal | 593,767 | 593,476 | 2.75% (13) | April 2031 | ||||||||||||||||||||||
2.90%, $400,000 aggregate principal | 396,241 | 396,130 | 2.90% (14) | December 2033 | ||||||||||||||||||||||
2.25%, $400,000 aggregate principal | — | 399,812 | N/A (15) | N/A (15) | ||||||||||||||||||||||
| Unsecured note payable | 11 | 61 | 0% (16) | May 2026 | ||||||||||||||||||||||
| Total debt, net | $ | 2,546,958 | $ | 2,767,834 | ||||||||||||||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Interest expense at stated interest rate | $ | 4,528 | $ | 4,528 | |||||||
| Interest expense associated with amortization of debt discount and issuance costs | 429 | 405 | |||||||||
| Total | $ | 4,957 | $ | 4,933 | |||||||
| Year Ending December 31, | March 31, 2026 | ||||||||||
2026 (1) | $ | 45,904 | |||||||||
| 2027 | 50,000 | ||||||||||
| 2028 | 345,000 | ||||||||||
| 2029 | 728,000 | ||||||||||
| 2030 | 400,000 | ||||||||||
| Thereafter | 1,000,000 | ||||||||||
| Total | $ | 2,568,904 | (2) | ||||||||
| March 31, 2026 | December 31, 2025 | ||||||||||||||||||||||
| Carrying Amount | Estimated Fair Value | Carrying Amount | Estimated Fair Value | ||||||||||||||||||||
| Fixed-rate debt | |||||||||||||||||||||||
| Unsecured Senior Notes | $ | 2,123,149 | $ | 2,031,047 | $ | 2,521,673 | $ | 2,438,332 | |||||||||||||||
| Other fixed-rate debt | 35,797 | 35,539 | 36,125 | 35,649 | |||||||||||||||||||
| Variable-rate debt | 388,012 | 389,831 | 210,036 | 211,505 | |||||||||||||||||||
| $ | 2,546,958 | $ | 2,456,417 | $ | 2,767,834 | $ | 2,685,486 | ||||||||||||||||
| Fair Value at | ||||||||||||||||||||||||||||||||||||||
| Notional Amount | Fixed Rate | Floating Rate Index | Effective Date | Expiration Date | March 31, 2026 | December 31, 2025 | ||||||||||||||||||||||||||||||||
| $ | 10,100 | (1) | 1.678% | SOFR + 0.10% | 8/1/2019 | 8/1/2026 | $ | 70 | $ | 114 | ||||||||||||||||||||||||||||
| $ | 150,000 | 3.742% | One-Month SOFR | 2/1/2023 | 2/2/2026 | — | (5) | |||||||||||||||||||||||||||||||
| $ | 50,000 | 3.747% | One-Month SOFR | 2/1/2023 | 2/2/2026 | — | (2) | |||||||||||||||||||||||||||||||
| $ | 70 | $ | 107 | |||||||||||||||||||||||||||||||||||
| Fair Value at | ||||||||||||||||||||
| Derivatives | Balance Sheet Location | March 31, 2026 | December 31, 2025 | |||||||||||||||||
| Interest rate swaps designated as cash flow hedges | Prepaid expenses and other assets, net | $ | 70 | $ | 114 | |||||||||||||||
| Interest rate swaps designated as cash flow hedges | Other liabilities | $ | — | $ | (7) | |||||||||||||||
| For the Three Months Ended March 31, | ||||||||||||||
| 2026 | 2025 | |||||||||||||
| Beginning balance | $ | 25,506 | $ | 23,974 | ||||||||||
| Distributions to noncontrolling interest | (667) | (605) | ||||||||||||
| Net income attributable to noncontrolling interest | 667 | 605 | ||||||||||||
| Adjustments for changes in fair value of interest | (376) | (435) | ||||||||||||
| Ending balance | $ | 25,130 | $ | 23,539 | ||||||||||
| Defense/IT Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fort Meade/BW Corridor | Redstone Arsenal | NoVA Defense/IT | Lackland Air Force Base | Navy Support | Data Center Shells | Total Defense/IT Portfolio | Other | Total | |||||||||||||||||||||||||||||||||||||||||||||
Three Months Ended March 31, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenues from real estate operations | $ | 87,533 | $ | 20,645 | $ | 24,816 | $ | 18,354 | $ | 8,992 | $ | 14,665 | $ | 175,005 | $ | 19,591 | $ | 194,596 | |||||||||||||||||||||||||||||||||||
| Other segment items | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property operating expenses | (36,480) | (7,249) | (10,356) | (8,998) | (4,359) | (2,549) | (69,991) | (11,444) | (81,435) | ||||||||||||||||||||||||||||||||||||||||||||
| UJV NOI allocable to COPT Defense | — | — | — | — | — | 2,056 | 2,056 | — | 2,056 | ||||||||||||||||||||||||||||||||||||||||||||
| Total other segment items | (36,480) | (7,249) | (10,356) | (8,998) | (4,359) | (493) | (67,935) | (11,444) | (79,379) | ||||||||||||||||||||||||||||||||||||||||||||
| NOI from real estate operations | $ | 51,053 | $ | 13,396 | $ | 14,460 | $ | 9,356 | $ | 4,633 | $ | 14,172 | $ | 107,070 | $ | 8,147 | $ | 115,217 | |||||||||||||||||||||||||||||||||||
| Additions to long-lived assets | $ | 7,646 | $ | 882 | $ | 2,003 | $ | (56) | $ | 1,679 | $ | — | $ | 12,154 | $ | 6,601 | $ | 18,755 | |||||||||||||||||||||||||||||||||||
| Transfers from non-operating properties | $ | 116 | $ | 2,909 | $ | 5 | $ | — | $ | — | $ | 15,556 | $ | 18,586 | $ | 388 | $ | 18,974 | |||||||||||||||||||||||||||||||||||
Segment assets at March 31, 2026 | $ | 1,454,179 | $ | 613,080 | $ | 517,239 | $ | 193,465 | $ | 172,205 | $ | 590,649 | $ | 3,540,817 | $ | 327,328 | $ | 3,868,145 | |||||||||||||||||||||||||||||||||||
Three Months Ended March 31, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenues from real estate operations | $ | 84,608 | $ | 16,422 | $ | 23,162 | $ | 16,410 | $ | 7,960 | $ | 10,865 | $ | 159,427 | $ | 18,170 | $ | 177,597 | |||||||||||||||||||||||||||||||||||
| Other segment items | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property operating expenses | (31,930) | (6,294) | (10,089) | (8,999) | (4,166) | (1,853) | (63,331) | (8,709) | (72,040) | ||||||||||||||||||||||||||||||||||||||||||||
| UJV NOI allocable to COPT Defense | — | — | — | — | — | 1,889 | 1,889 | — | 1,889 | ||||||||||||||||||||||||||||||||||||||||||||
| Total other segment items | (31,930) | (6,294) | (10,089) | (8,999) | (4,166) | 36 | (61,442) | (8,709) | (70,151) | ||||||||||||||||||||||||||||||||||||||||||||
| NOI from real estate operations | $ | 52,678 | $ | 10,128 | $ | 13,073 | $ | 7,411 | $ | 3,794 | $ | 10,901 | $ | 97,985 | $ | 9,461 | $ | 107,446 | |||||||||||||||||||||||||||||||||||
| Additions to long-lived assets | $ | 8,093 | $ | 3,248 | $ | 2,556 | $ | 119 | $ | 3,666 | $ | — | $ | 17,682 | $ | 1,733 | $ | 19,415 | |||||||||||||||||||||||||||||||||||
| Transfers from non-operating properties | $ | 1,337 | $ | 4,266 | $ | 18 | $ | — | $ | — | $ | 3,941 | $ | 9,562 | $ | 2,774 | $ | 12,336 | |||||||||||||||||||||||||||||||||||
Segment assets at March 31, 2025 | $ | 1,441,470 | $ | 601,935 | $ | 492,384 | $ | 197,349 | $ | 163,951 | $ | 490,998 | $ | 3,388,087 | $ | 314,871 | $ | 3,702,958 | |||||||||||||||||||||||||||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Segment revenues from real estate operations | $ | 194,596 | $ | 177,597 | |||||||
| Construction contract and other service revenues | 6,041 | 10,259 | |||||||||
| Total revenues | $ | 200,637 | $ | 187,856 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| UJV NOI allocable to COPT Defense | $ | 2,056 | $ | 1,889 | |||||||
| Less: Income from UJV allocable to COPT Defense attributable to depreciation and amortization expense, interest expense, gain on sale of real estate, and loss on early extinguishment of debt | (650) | (1,518) | |||||||||
| Equity in income of unconsolidated entities | $ | 1,406 | $ | 371 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Construction contract and other service revenues | $ | 6,041 | $ | 10,259 | |||||||
| Construction contract and other service expenses | (5,552) | (9,705) | |||||||||
| NOI from service operations | $ | 489 | $ | 554 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| NOI from real estate operations | $ | 115,217 | $ | 107,446 | |||||||
| NOI from service operations | 489 | 554 | |||||||||
| Depreciation and other amortization associated with real estate operations | (42,685) | (39,359) | |||||||||
| General, administrative, leasing, and other expenses | (12,649) | (12,156) | |||||||||
| Interest expense | (23,996) | (20,504) | |||||||||
| Interest and other income, net | 3,955 | 1,568 | |||||||||
| Gain on sales of real estate | 582 | 300 | |||||||||
| Equity in income of unconsolidated entities | 1,406 | 371 | |||||||||
| UJV NOI allocable to COPT Defense included in equity in income of unconsolidated entities | (2,056) | (1,889) | |||||||||
| Income tax expense | (124) | (103) | |||||||||
| Net income | $ | 40,139 | $ | 36,228 | |||||||
| March 31, 2026 | March 31, 2025 | |||||||||||||
| Segment assets | $ | 3,868,145 | $ | 3,702,958 | ||||||||||
| Operating properties lease liabilities included in segment assets | 44,520 | 48,600 | ||||||||||||
| Investment in UJV deficit balance included in segment assets | 24,013 | 3,895 | ||||||||||||
| Non-operating property assets | 312,587 | 300,241 | ||||||||||||
| Other assets | 209,644 | 194,617 | ||||||||||||
| Total consolidated assets | 4,458,909 | 4,250,311 | ||||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Construction contract revenue | |||||||||||
| Guaranteed maximum price | $ | 2,338 | $ | 2,630 | |||||||
| Firm fixed price | 1,742 | 6,277 | |||||||||
| Cost-plus fee | 1,609 | 1,071 | |||||||||
| Other | 352 | 281 | |||||||||
| $ | 6,041 | $ | 10,259 | ||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Beginning balance | $ | 4,036 | $ | 8,828 | |||||||
| Ending balance | $ | 2,538 | $ | 4,328 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Beginning balance | $ | 17,925 | $ | 17,050 | |||||||
| Ending balance | $ | 15,213 | $ | 10,239 | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Beginning balance | $ | 2,183 | $ | 2,016 | |||||||
| Ending balance | $ | 1,960 | $ | 2,401 | |||||||
| Portion of beginning balance recognized in revenue during period | $ | 236 | $ | 100 | |||||||
| Investing Receivables | Tenant Notes Receivable (1) | Other Assets (2) | Total | ||||||||||||||||||||
| December 31, 2025 | $ | 3,575 | $ | 532 | $ | 109 | $ | 4,216 | |||||||||||||||
| Net credit loss recoveries (3) | (322) | (10) | (37) | (369) | |||||||||||||||||||
| March 31, 2026 | $ | 3,253 | $ | 522 | $ | 72 | $ | 3,847 | |||||||||||||||
| December 31, 2024 | $ | 2,792 | $ | 615 | $ | 75 | $ | 3,482 | |||||||||||||||
| Net credit loss expense (recoveries) (3) | 570 | (10) | (45) | 515 | |||||||||||||||||||
| March 31, 2025 | $ | 3,362 | $ | 605 | $ | 30 | $ | 3,997 | |||||||||||||||
| Origination Year | |||||||||||||||||||||||||||||||||||||||||
2021 and Earlier | 2022 | 2023 | 2024 | 2025 | 2026 | Total | |||||||||||||||||||||||||||||||||||
| Investing receivables | |||||||||||||||||||||||||||||||||||||||||
| Credit risk classification | |||||||||||||||||||||||||||||||||||||||||
| Investment grade | $ | 62,638 | $ | — | $ | 1,870 | $ | — | $ | — | $ | — | $ | 64,508 | |||||||||||||||||||||||||||
| Non-investment grade | — | — | — | — | 8,667 | — | 8,667 | ||||||||||||||||||||||||||||||||||
| Total | $ | 62,638 | $ | — | $ | 1,870 | $ | — | $ | 8,667 | $ | — | $ | 73,175 | |||||||||||||||||||||||||||
| Tenant notes receivable | |||||||||||||||||||||||||||||||||||||||||
| Credit risk classification | |||||||||||||||||||||||||||||||||||||||||
| Investment grade | $ | 380 | $ | — | $ | — | $ | — | $ | — | $ | — | $ | 380 | |||||||||||||||||||||||||||
| Non-investment grade | 1,158 | — | — | 310 | 19 | — | 1,487 | ||||||||||||||||||||||||||||||||||
| Total | $ | 1,538 | $ | — | $ | — | $ | 310 | $ | 19 | $ | — | $ | 1,867 | |||||||||||||||||||||||||||
| Sales-type lease receivables | |||||||||||||||||||||||||||||||||||||||||
| Credit risk classification | |||||||||||||||||||||||||||||||||||||||||
| Investment grade | $ | 3,658 | $ | — | $ | — | $ | — | $ | — | $ | 1,520 | $ | 5,178 | |||||||||||||||||||||||||||
| Number of Shares | Weighted Average Grant Date Fair Value | |||||||||||||
Unvested as of December 31, 2025 | 434,754 | $ | 26.56 | |||||||||||
| Granted | 221,189 | $ | 31.78 | |||||||||||
| Forfeited | (5,757) | $ | 26.72 | |||||||||||
| Vested | (137,165) | $ | 25.95 | |||||||||||
Unvested as of March 31, 2026 | 513,021 | $ | 28.97 | |||||||||||
| Number of TB-PIUs | Weighted Average Grant Date Fair Value | |||||||||||||
Unvested as of December 31, 2025 | 235,903 | $ | 26.08 | |||||||||||
| Granted | 74,215 | $ | 31.78 | |||||||||||
| Vested | (96,694) | $ | 25.72 | |||||||||||
Unvested as of March 31, 2026 | 213,424 | $ | 28.23 | |||||||||||
| Percentile Rank | Earned Award Payout % | |||||||
| 75th or greater | 200% of target award | |||||||
| 50th (target) | 100% of target award | |||||||
| 25th | 50% of target award | |||||||
| Below 25th | 0% of target award | |||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Numerator | |||||||||||
| Net income attributable to common shareholders | $ | 38,556 | $ | 34,740 | |||||||
| Income attributable to share-based compensation awards for basic EPS | (191) | (167) | |||||||||
| Numerator for basic EPS on net income attributable to common shareholders | 38,365 | 34,573 | |||||||||
| Adjustment to income attributable to share-based compensation awards for diluted EPS | 30 | 24 | |||||||||
| Numerator for diluted EPS on net income attributable to common shareholders | $ | 38,395 | $ | 34,597 | |||||||
| Denominator (all weighted averages) | |||||||||||
| Denominator for basic EPS (common shares) | 112,806 | 112,383 | |||||||||
| Dilutive effect of share-based compensation awards | 1,031 | 643 | |||||||||
| Dilutive exchangeable debt | 472 | — | |||||||||
| Denominator for diluted EPS (common shares) | 114,309 | 113,026 | |||||||||
| Basic EPS attributable to common shareholders | $ | 0.34 | $ | 0.31 | |||||||
| Diluted EPS attributable to common shareholders | $ | 0.34 | $ | 0.31 | |||||||
| Weighted Average Shares Excluded from Denominator | |||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| Conversion of common units | 2,063 | 2,047 | |||||||||
| Conversion of redeemable noncontrolling interest | 793 | 873 | |||||||||
| March 31, 2026 | December 31, 2025 | ||||||||||
| Occupancy rates at period end | |||||||||||
| Total | 94.4 | % | 94.0 | % | |||||||
| Defense/IT Portfolio | |||||||||||
| Fort Meade/BW Corridor | 93.5 | % | 93.6 | % | |||||||
| Redstone Arsenal | 96.1 | % | 96.1 | % | |||||||
| NoVA Defense/IT | 93.9 | % | 93.5 | % | |||||||
| Lackland Air Force Base | 100.0 | % | 100.0 | % | |||||||
| Navy Support | 88.2 | % | 86.9 | % | |||||||
| Data Center Shells | 100.0 | % | 100.0 | % | |||||||
| Total Defense/IT Portfolio | 95.6 | % | 95.5 | % | |||||||
| Other | 79.7 | % | 76.6 | % | |||||||
| ARR per occupied square foot at period end | $ | 36.66 | $ | 36.14 | |||||||
| Rentable Square Feet | Occupied Square Feet | ||||||||||
| (in thousands) | |||||||||||
| December 31, 2025 | 25,147 | 23,649 | |||||||||
| Vacated upon lease expiration (1) | — | (131) | |||||||||
| Occupancy for new leases | — | 212 | |||||||||
| Other changes | 8 | 8 | |||||||||
| March 31, 2026 | 25,155 | 23,738 | |||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| (in thousands) | |||||||||||
| Net income | $ | 40,139 | $ | 36,228 | |||||||
| Construction contract and other service revenues | (6,041) | (10,259) | |||||||||
| Depreciation and other amortization associated with real estate operations | 42,685 | 39,359 | |||||||||
| Construction contract and other service expenses | 5,552 | 9,705 | |||||||||
| General, administrative, leasing, and other expenses | 12,649 | 12,156 | |||||||||
| Interest expense | 23,996 | 20,504 | |||||||||
| Interest and other income, net | (3,955) | (1,568) | |||||||||
| Gain on sales of real estate | (582) | (300) | |||||||||
| Equity in income of unconsolidated entities | (1,406) | (371) | |||||||||
| UJV NOI allocable to COPT Defense included in equity in income of unconsolidated entities | 2,056 | 1,889 | |||||||||
| Income tax expense | 124 | 103 | |||||||||
| NOI from real estate operations | $ | 115,217 | $ | 107,446 | |||||||
| For the Three Months Ended March 31, | |||||||||||||||||
| 2026 | 2025 | Variance | |||||||||||||||
| (in thousands) | |||||||||||||||||
| Revenues | |||||||||||||||||
| Revenues from real estate operations | $ | 194,596 | $ | 177,597 | $ | 16,999 | |||||||||||
| Construction contract and other service revenues | 6,041 | 10,259 | (4,218) | ||||||||||||||
| Total revenues | 200,637 | 187,856 | 12,781 | ||||||||||||||
| Operating expenses | |||||||||||||||||
| Property operating expenses | 81,435 | 72,040 | 9,395 | ||||||||||||||
| Depreciation and amortization associated with real estate operations | 42,685 | 39,359 | 3,326 | ||||||||||||||
| Construction contract and other service expenses | 5,552 | 9,705 | (4,153) | ||||||||||||||
| General, administrative, leasing, and other expenses | 12,649 | 12,156 | 493 | ||||||||||||||
| Total operating expenses | 142,321 | 133,260 | 9,061 | ||||||||||||||
| Interest expense | (23,996) | (20,504) | (3,492) | ||||||||||||||
| Interest and other income, net | 3,955 | 1,568 | 2,387 | ||||||||||||||
| Gain on sales of real estate | 582 | 300 | 282 | ||||||||||||||
| Equity in income of unconsolidated entities | 1,406 | 371 | 1,035 | ||||||||||||||
| Income tax expense | (124) | (103) | (21) | ||||||||||||||
| Net income | $ | 40,139 | $ | 36,228 | $ | 3,911 | |||||||||||
| For the Three Months Ended March 31, | |||||||||||||||||
| 2026 | 2025 | Variance | |||||||||||||||
| (Dollars in thousands, except per square foot data) | |||||||||||||||||
| Revenues | |||||||||||||||||
| Same Property revenues | |||||||||||||||||
| Lease revenue, excluding lease termination revenue and collectability loss provisions | $ | 184,415 | $ | 174,117 | $ | 10,298 | |||||||||||
| Lease termination revenue, net | 1,212 | 834 | 378 | ||||||||||||||
| Collectability loss provisions included in lease revenue | (170) | (2,135) | 1,965 | ||||||||||||||
| Other property revenue | 1,599 | 2,264 | (665) | ||||||||||||||
| Same Property total revenues | 187,056 | 175,080 | 11,976 | ||||||||||||||
| Developed properties placed in service | 3,783 | 23 | 3,760 | ||||||||||||||
| Acquired property | 1,411 | — | 1,411 | ||||||||||||||
| Other | 2,346 | 2,494 | (148) | ||||||||||||||
| 194,596 | 177,597 | 16,999 | |||||||||||||||
| Property operating expenses | |||||||||||||||||
| Same Property | (78,731) | (69,923) | (8,808) | ||||||||||||||
| Developed properties placed in service | (348) | (5) | (343) | ||||||||||||||
| Acquired property | (380) | — | (380) | ||||||||||||||
| Other | (1,976) | (2,112) | 136 | ||||||||||||||
| (81,435) | (72,040) | (9,395) | |||||||||||||||
| UJV NOI allocable to COPT Defense | |||||||||||||||||
| Same Property | 2,056 | 1,889 | 167 | ||||||||||||||
| NOI from real estate operations | |||||||||||||||||
| Same Property | 110,381 | 107,046 | 3,335 | ||||||||||||||
| Developed properties placed in service | 3,435 | 18 | 3,417 | ||||||||||||||
| Acquired property | 1,031 | — | 1,031 | ||||||||||||||
| Other | 370 | 382 | (12) | ||||||||||||||
| $ | 115,217 | $ | 107,446 | $ | 7,771 | ||||||||||||
| Same Property NOI from real estate operations by segment | |||||||||||||||||
| Defense/IT Portfolio | $ | 102,604 | $ | 97,967 | $ | 4,637 | |||||||||||
| Other | 7,777 | 9,079 | (1,302) | ||||||||||||||
| $ | 110,381 | $ | 107,046 | $ | 3,335 | ||||||||||||
| Same Property rent statistics | |||||||||||||||||
| Average occupancy rate | 94.1 | % | 93.4 | % | 0.7 | % | |||||||||||
| Average straight-line rent per occupied square foot (1) | $ | 7.25 | $ | 7.07 | $ | 0.18 | |||||||||||
| For the Three Months Ended March 31, | ||||||||||||||||||||
| 2026 | 2025 | Variance | ||||||||||||||||||
| (in thousands) | ||||||||||||||||||||
| Construction contract and other service revenues | $ | 6,041 | $ | 10,259 | $ | (4,218) | ||||||||||||||
| Construction contract and other service expenses | (5,552) | (9,705) | 4,153 | |||||||||||||||||
| NOI from service operations | $ | 489 | $ | 554 | $ | (65) | ||||||||||||||
| For the Three Months Ended March 31, | |||||||||||
| 2026 | 2025 | ||||||||||
| (Dollars and shares in thousands, except per share data) | |||||||||||
| Net income | $ | 40,139 | $ | 36,228 | |||||||
| Real estate-related depreciation and amortization | 42,685 | 39,359 | |||||||||
| Gain on sales of real estate | (582) | (300) | |||||||||
| Depreciation and amortization on UJVs allocable to COPT Defense | 742 | 741 | |||||||||
| Gain on sale of real estate on unconsolidated real estate JV | (1,146) | — | |||||||||
| FFO | 81,838 | 76,028 | |||||||||
| FFO allocable to other noncontrolling interests | (1,131) | (1,158) | |||||||||
| Basic FFO allocable to share-based compensation awards | (603) | (530) | |||||||||
| Basic FFO available to common share and common unit holders | 80,104 | 74,340 | |||||||||
| Diluted FFO adjustments allocable to share-based compensation awards | 64 | 53 | |||||||||
| Diluted FFO available to common share and common unit holders and as adjusted for comparability | $ | 80,168 | $ | 74,393 | |||||||
| Weighted average common shares | 112,806 | 112,383 | |||||||||
| Conversion of weighted average common units | 2,063 | 2,047 | |||||||||
| Weighted average common shares/units - Basic FFO per share | 114,869 | 114,430 | |||||||||
| Dilutive effect of share-based compensation awards | 1,031 | 643 | |||||||||
| Dilutive exchangeable debt | 472 | — | |||||||||
| Weighted average common shares/units - Diluted FFO per share and as adjusted for comparability | 116,372 | 115,073 | |||||||||
| Diluted EPS | $ | 0.34 | $ | 0.31 | |||||||
| Diluted FFO per share | $ | 0.69 | $ | 0.65 | |||||||
| Diluted FFO per share, as adjusted for comparability | $ | 0.69 | $ | 0.65 | |||||||
| Denominator for diluted EPS | 114,309 | 113,026 | |||||||||
| Weighted average common units | 2,063 | 2,047 | |||||||||
| Denominator for diluted FFO per share and as adjusted for comparability | 116,372 | 115,073 | |||||||||
| Properties in development or held for future development | $ | 44,535 | |||
| Tenant improvements on operating properties (1) | 13,003 | ||||
| Capital improvements on operating properties | 1,142 | ||||
| $ | 58,680 | ||||
| For the Periods Ending December 31, | |||||||||||||||||||||||||||||||||||||||||
| 2026 | 2027 | 2028 | 2029 | 2030 | Thereafter | Total | |||||||||||||||||||||||||||||||||||
| Debt | |||||||||||||||||||||||||||||||||||||||||
| Fixed rate debt (1) | $ | 35,804 | $ | — | $ | 345,000 | $ | 400,000 | $ | 400,000 | $ | 1,000,000 | $ | 2,180,804 | |||||||||||||||||||||||||||
| Weighted average interest rate | 3.82% | —% | 5.25% | 2.00% | 4.25% | 2.81% | 3.33% | ||||||||||||||||||||||||||||||||||
| Variable rate debt (2) | $ | 10,100 | $ | 50,000 | $ | — | $ | 328,000 | $ | — | $ | — | $ | 388,100 | |||||||||||||||||||||||||||
| Weighted average interest rate (3) | 5.17% | 4.72% | —% | 4.73% | —% | —% | 4.74% | ||||||||||||||||||||||||||||||||||
| EXHIBIT NO. | DESCRIPTION | |||||||
| 101.INS | XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document (filed herewith). | |||||||
| 101.SCH | Inline XBRL Taxonomy Extension Schema Document (filed herewith). | |||||||
| 101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase Document (filed herewith). | |||||||
| 101.LAB | Inline XBRL Extension Labels Linkbase (filed herewith). | |||||||
| 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document (filed herewith). | |||||||
| 101.DEF | Inline XBRL Taxonomy Extension Definition Linkbase Document (filed herewith). | |||||||
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101). | |||||||
| COPT DEFENSE PROPERTIES | |||||||||||
| Date: | May 6, 2026 | By: | /s/ Stephen E. Budorick | ||||||||
| Stephen E. Budorick | |||||||||||
| President and Chief Executive Officer | |||||||||||
| Date: | May 6, 2026 | By: | /s/ Anthony Mifsud | ||||||||
| Anthony Mifsud | |||||||||||
| Executive Vice President and Chief Financial Officer | |||||||||||
Lapse Date | Percentage of Total Number of Restricted Shares as to Which Forfeiture Restrictions Lapse | ||||
First anniversary date of the Grant Date | 33% | ||||
Second anniversary date of the Grant | 33% | ||||
| Third anniversary date of the Grant Date | 34% | ||||
1 | ||
2 | ||
3 | ||
4 | ||
| COPT DEFENSE PROPERTIES | |||||
| By: | |||||
| Name: | |||||
| Title: | |||||
| Date: | |||||
| Debt Instrument | Issuer | ||||
| 2.000% Senior Notes due 2029 | COPT Defense Properties, L.P. | ||||
| 4.500% Senior Notes due 2030 | COPT Defense Properties, L.P. | ||||
| 2.750% Senior Notes due 2031 | COPT Defense Properties, L.P. | ||||
| 2.900% Senior Notes due 2033 | COPT Defense Properties, L.P. | ||||
| Date: | May 6, 2026 | /s/ Stephen E. Budorick | |||||||||
| Stephen E. Budorick | |||||||||||
| President and Chief Executive Officer | |||||||||||
| Date: | May 6, 2026 | /s/ Anthony Mifsud | |||||||||
| Anthony Mifsud | |||||||||||
| Executive Vice President and Chief Financial Officer | |||||||||||
| /s/ Stephen E. Budorick | |||||
| Stephen E. Budorick | |||||
| President and Chief Executive Officer | |||||
| Date: | May 6, 2026 | ||||
| /s/ Anthony Mifsud | |||||
| Anthony Mifsud | |||||
| Executive Vice President and Chief Financial Officer | |||||
| Date: | May 6, 2026 | ||||