COPT Defense Properties
US ˙ NYSE

SecurityCDP / COPT Defense Properties
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,606,360 shares
Latest Disclosed Value $ 49,154,617
Northern Trust Corp reports 4.96% increase in ownership of CDP / COPT Defense Properties

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,606,360 shares of COPT Defense Properties (US:CDP) valued at $49,154,616 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,530,414 shares of COPT Defense Properties. This represents a change in shares of 4.96% during the quarter. The current value of the position is $51,548,092 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,606,360 75,946 4.96 49,155 15.53 0.0013
2026-02-17 2025-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,530,414 -111,691 -6.80 42,546 -10.84 0.0054
2025-11-14 2025-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,642,105 -2,269 -0.14 47,720 5.22 0.0061
2025-08-13 2025-06-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,644,374 -60,348 -3.54 45,352 -2.44 0.0062
2025-05-13 2025-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,704,722 -33,093 -1.90 46,488 -13.57 0.0069
2025-02-14 2024-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,737,815 281,834 19.36 53,785 21.80 0.0076
2024-11-13 2024-09-30 13F COPT DEFENSE PROPERTIES COM 22002T108 1,455,981 -61,312 -4.04 44,160 16.28 0.0072
2024-08-14 2024-06-30 13F COPT DEFENSE PROPERTIES COM 22002T108 1,517,293 104,830 7.42 37,978 11.24 0.0064
2024-05-14 2024-03-31 13F COPT DEFENSE PROPERTIES COM 22002T108 1,412,463 -119,055 -7.77 34,139 -13.03 0.0059
2024-02-13 2023-12-31 13F COPT DEFENSE PROPERTIES COM 22002T108 1,531,518 -317,755 -17.18 39,253 -10.93 0.0071
2023-11-13 2023-09-30 13F COPT DEFENSE PROPERTIES COM 22002T108 1,849,273 -15,992 -0.86 44,068 -0.52 0.0085
2023-08-11 2023-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,865,265 -44,108 -2.31 44,300 -2.14 0.0085
2023-05-15 2023-03-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,909,373 -23,300 -1.21 45,271 -9.70 0.0090
2023-02-13 2022-12-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,932,673 -129,567 -6.28 50,134 4.65 0.0105
2022-11-14 2022-09-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 2,062,240 -43,774 -2.08 47,905 -13.15 0.0109
2022-08-12 2022-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 2,106,014 -129,186 -5.78 55,156 -13.54 0.0118
2022-05-13 2022-03-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 2,235,200 -108,812 -4.64 63,793 -2.70 0.0112
2022-02-08 2021-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,344,012 -30,538 -1.29 65,561 2.33 0.0107
2021-11-15 2021-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,374,550 -115,387 -4.63 64,066 -8.07 0.0113
2021-08-13 2021-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,489,937 642,547 34.78 69,693 43.28 0.0123
2021-05-12 2021-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,847,390 -172,509 -8.54 48,642 -7.66 0.0090
2021-02-11 2020-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,019,899 -46,498 -2.25 52,679 7.48 0.0103
2020-11-16 2020-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,066,397 -154,981 -6.98 49,015 -12.92 0.0107
2020-08-14 2020-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 2,221,378 68,728 3.19 56,290 18.16 0.0133
2020-05-14 2020-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 2,152,650 210,015 10.81 47,638 -16.53 0.0137
2020-02-14 2019-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,942,635 -80,137 -3.96 57,075 -5.25 0.0128
2019-11-13 2019-09-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 2,022,772 146,833 7.83 60,238 21.77 0.0144
2019-08-13 2019-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,875,939 79,055 4.40 49,468 0.84 0.0117
2019-05-13 2019-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,796,884 28,285 1.60 49,055 31.89 0.0121
2019-02-12 2018-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,768,599 29,809 1.71 37,194 -28.29 0.0104
2018-11-14 2018-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,738,790 -78,085 -4.30 51,868 -1.52 0.0127
2018-09-18 2018-06-30 13F/A-1 CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,816,875 124,452 7.35 52,671 20.48 0.0134
2018-08-14 2018-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,823,169 130,746 52,853
2018-05-09 2018-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,692,423 88,387 5.51 43,716 -6.67 0.0114
2018-02-14 2017-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,604,036 40,056 2.56 46,838 -8.78 0.0119
2017-11-13 2017-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,563,980 -41,774 -2.60 51,346 -8.72 0.0134
2017-08-11 2017-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,605,754 38,187 2.44 56,250 8.41 0.0157
2017-05-12 2017-03-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,567,567 28,517 1.85 51,887 7.99 0.0150
2017-02-13 2016-12-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,539,050 -245,325 -13.75 48,049 -5.02 0.0147
2016-11-09 2016-09-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,784,375 -61,569 -3.34 50,588 -7.32 0.0158
2016-08-12 2016-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,845,944 141,486 8.30 54,584 26.84 0.0177
2016-08-19 2016-03-31 13F/A-1 CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,704,458 32,791 1.96 43,033 17.92 0.0143
2016-05-13 2016-03-31 13F Corporate Office Ppt REIT 22002T108 1,704,458 44,725
2016-02-12 2015-12-31 13F Corporate Office Ppt REIT 22002T108 1,671,667 -107,490 -6.04 36,492 -2.47 0.0121
2015-11-12 2015-09-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,779,157 511,338 40.33 37,417 25.37 0.0125
2015-08-13 2015-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,267,819 -411,004 -24.48 29,845 -39.49 0.0202
2015-05-14 2015-03-31 13F Corporate Office Ppt REIT 22002T108 1,678,823 362,382 27.53 49,323 32.06 0.0148
2015-02-12 2014-12-31 13F Corporate Office Ppt REIT 22002T108 1,316,441 52,479 4.15 37,348 14.88 0.0113
2014-11-13 2014-09-30 13F Corporate Office Ppt REIT 22002T108 1,263,962 122,751 10.76 32,510 2.44 0.0102
2014-08-14 2014-06-30 13F CORPORATE OFFICE PPTYS TR com 22002T108 1,141,211 -48,513 -4.08 31,737 0.13 0.0099
2014-05-14 2014-03-31 13F CORPORATE OFFICE PPTYS TR REIT 22002T108 1,189,724 132,198 12.50 31,695 26.51 0.0100
2014-02-21 2013-12-31 13F/A-1 CORPORATE OFFICE PPTYS TR COM 22002T108 1,057,526 8,512 0.81 25,053 3.39 0.0080
2014-02-12 2013-12-31 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,057,526 25,053
2013-11-13 2013-09-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,049,014 2,451 0.23 24,232 -9.20 0.0085
2013-08-09 2013-06-30 13F CORPORATE OFFICE PPTYS TR COM 22002T108 1,046,563 1,046,563 26,687 0.0097
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.