COPT Defense Properties
US ˙ NYSE

SecurityCDP / COPT Defense Properties
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership1,012,564 shares
Latest Disclosed Value $ 30,984,458
Millennium Management Llc reports 288.08% increase in ownership of CDP / COPT Defense Properties

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 1,012,564 shares of COPT Defense Properties (US:CDP) valued at $30,984,458 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 260,913 shares of COPT Defense Properties. This represents a change in shares of 288.08% during the quarter. The current value of the position is $32,493,179 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.

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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)
2026-05-15 2026-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,012,564 751,651 288.08 30,984 327.19 0.0129
2026-02-17 2025-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 260,913 208,088 393.92 7,253 372.51 0.0031
2025-11-14 2025-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 52,825 -27,874 -34.54 1,535 -31.01 0.0007
2025-08-14 2025-06-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 80,699 -49,664 -38.10 2,226 -37.39 0.0011
2025-05-15 2025-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 130,363 -897,027 -87.31 3,555 -88.82 0.0019
2025-02-14 2024-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,027,390 -1,591,850 -60.78 31,798 -59.97 0.0155
2024-11-14 2024-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 2,619,240 -654,768 -20.00 79,442 -3.06 0.0377
2024-08-14 2024-06-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 3,274,008 1,293,761 65.33 81,948 71.22 0.0380
2024-05-15 2024-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,980,247 358,359 22.10 47,863 15.14 0.0204
2024-02-14 2023-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,621,888 4,063 0.25 41,569 7.82 0.0180
2023-11-14 2023-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 1,617,825 1,268,814 363.55 38,553 365.10 0.0195
2023-08-14 2023-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 349,011 -494,108 -58.60 8,289 -58.53 0.0041
2023-05-15 2023-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 843,119 -687,690 -44.92 19,990 -49.66 0.0115
2023-02-14 2022-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,530,809 -358,999 -19.00 39,709 -9.55 0.0220
2022-11-14 2022-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,889,808 -11,931 -0.63 43,900 -11.86 0.0260
2022-08-15 2022-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,901,739 1,156,923 155.33 49,807 134.31 0.0309
2022-05-16 2022-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 744,816 735,430 7,835.39 21,257 7,982.51 0.0113
2022-02-14 2021-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 9,386 -712,365 -98.70 263 -98.65 0.0001
2021-11-15 2021-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 721,751 -179,600 -19.93 19,473 -22.82 0.0117
2021-08-16 2021-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 901,351 -79,727 -8.13 25,229 -2.33 0.0155
2021-05-17 2021-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 981,078 361,243 58.28 25,832 59.80 0.0185
2021-02-16 2020-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 619,835 494,518 394.61 16,165 443.73 0.0117
2020-11-16 2020-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 125,317 -526,831 -80.78 2,973 -82.01 0.0037
2020-08-14 2020-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 652,148 642,293 6,517.43 16,525 7,480.28 0.0226
2020-05-14 2020-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 9,855 -426,992 -97.74 218 -98.30 0.0005
2020-02-14 2019-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 436,847 408,577 1,445.27 12,835 1,426.16 0.0161
2019-11-14 2019-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 28,270 14,262 101.81 841 127.91 0.0013
2019-08-15 2019-06-30 13F/A-1 CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 14,008 14,008 369 0.0006
2019-08-14 2019-06-30 13F TC ENERGY COM 22002T108 104,381 104,381 5,169
2019-05-14 2019-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 0 -687,208 -100.00 0 -100.00
2019-02-15 2018-12-31 13F/A-1 CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 687,208 -764,400 -52.66 14,452 -66.62 0.0225
2019-02-14 2018-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 687,208 14,452
2018-11-14 2018-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,451,608 1,292,010 809.54 43,301 835.83 0.0531
2018-08-14 2018-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 159,598 -324,244 -67.01 4,627 -62.98 0.0060
2018-05-15 2018-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 483,842 -1,319,773 -73.17 12,498 -76.27 0.0167
2018-02-14 2017-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,803,615 1,606,372 814.41 52,666 713.37 0.0727
2017-11-14 2017-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 197,243 197,243 6,475 0.0099
2017-05-15 2017-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 0 -296,408 -100.00 0 -100.00
2017-02-14 2016-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 296,408 -89,164 -23.13 9,254 -15.34 0.0194
2016-11-14 2016-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 385,572 201,892 109.92 10,931 101.27 0.0183
2016-08-15 2016-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 183,680 183,680 0.00 5,431 0.0124
2016-05-16 2016-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 0 -251,648 -100.00 0 -100.00
2016-02-16 2015-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 251,648 -248,768 -49.71 5,493 -47.81 0.0115
2015-11-16 2015-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 500,416 29,522 6.27 10,524 -5.06 0.0204
2015-08-14 2015-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 470,894 186,283 65.45 11,085 32.56 0.0210
2015-05-15 2015-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 284,611 -723,568 -71.77 8,362 -70.76 0.0156
2015-02-17 2014-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 1,008,179 944,122 1,473.88 28,602 1,635.56 0.0606
2014-11-14 2014-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 64,057 64,057 0.00 1,648 0.0042
2014-08-14 2014-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 0 -289,702 -100.00 0 -100.00
2014-05-15 2014-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 289,702 -162,609 -35.95 7,718 -27.97 0.0224
2014-02-14 2013-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 452,311 -12,990 -2.79 10,715 -0.31 0.0338
2013-11-14 2013-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 465,301 230,524 98.19 10,748 79.52 0.0346
2013-08-14 2013-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 234,777 234,777 5,987 0.0184
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.