COPT Defense Properties
US ˙ NYSE

SecurityCDP / COPT Defense Properties
InstitutionOppenheimer Asset Management Inc.
Latest Disclosed Ownership26,325 shares
Latest Disclosed Value $ 805,545
Oppenheimer Asset Management Inc. reports 1.56% decrease in ownership of CDP / COPT Defense Properties

On April 23, 2026 - Oppenheimer Asset Management Inc. filed a 13F-HR form disclosing ownership of 26,325 shares of COPT Defense Properties (US:CDP) valued at $805,545 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 26,741 shares of COPT Defense Properties. This represents a change in shares of -1.56% during the quarter. The current value of the position is $859,511 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)
2026-04-23 2026-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 26,325 -416 -1.56 806 8.34 0.0023
2026-02-02 2025-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 26,741 -2,599 -8.86 743 -12.79 0.0091
2025-11-06 2025-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 29,340 -135 -0.46 853 4.93 0.0094
2025-07-31 2025-06-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 29,475 -567 -1.89 813 -0.85 0.0093
2025-04-23 2025-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 30,042 -318 -1.05 819 -12.78 0.0102
2025-02-05 2024-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 30,360 316 1.05 940 3.07 0.0114
2024-11-05 2024-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 30,044 -562 -1.84 911 18.93 0.0110
2024-08-08 2024-06-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 30,606 -6,803 -18.19 766 -15.27 0.0098
2024-05-07 2024-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 37,409 -1,770 -4.52 904 -9.96 0.0132
2024-02-13 2023-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 39,179 -5,449 -12.21 1,004 -5.55 0.0140
2023-11-08 2023-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT 22002T108 44,628 311 0.70 1,063 1.05 0.0163
2023-08-03 2023-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 44,317 -1,091 -2.40 1,053 -2.23 0.0155
2023-05-10 2023-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 45,408 4,598 11.27 1,077 1.70 0.0166
2023-02-07 2022-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 40,810 -5,302 -11.50 1,059 -1.21 0.0170
2022-11-14 2022-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 46,112 1,203 2.68 1,071 -8.93 0.0189
2022-08-08 2022-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 44,909 -2,868 -6.00 1,176 -13.78 0.0197
2022-05-12 2022-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 47,777 147 0.31 1,364 2.40 0.0194
2022-02-02 2021-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 47,630 -497 -1.03 1,332 2.62 0.0177
2021-11-12 2021-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 48,127 -619 -1.27 1,298 -4.84 0.0185
2021-08-03 2021-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 48,746 1,080 2.27 1,364 8.69 0.0194
2021-05-17 2021-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 47,666 1,930 4.22 1,255 5.20 0.0194
2021-02-11 2020-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 45,736 -3,049 -6.25 1,193 3.11 0.0199
2020-11-13 2020-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 48,785 -1,595 -3.17 1,157 -9.40 0.0225
2020-08-11 2020-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 50,380 -1,793 -3.44 1,277 10.56 0.0264
2020-05-08 2020-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 52,173 -1,569 -2.92 1,155 -26.85 0.0284
2020-02-07 2019-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 53,742 -280 -0.52 1,579 -1.86 0.0334
2019-10-31 2019-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 54,022 -579 -1.06 1,609 11.74 0.0357
2019-08-09 2019-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 54,601 54,601 1,440 0.0318
2018-05-09 2018-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 0 -13,805 -100.00 0 -100.00
2018-02-07 2017-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 13,805 0 0.00 453 0.00 0.0120
2017-11-14 2017-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 13,805 483 3.63 453 -3.00 0.0118
2017-08-09 2017-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 13,322 -390 -2.84 467 2.86 0.0129
2017-05-15 2017-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 13,712 13,712 454 0.0129
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.