COPT Defense Properties
US ˙ NYSE

SecurityCDP / COPT Defense Properties
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership506,737 shares
Latest Disclosed Value $ 15,506
Natixis Advisors, L.p. reports 10.86% increase in ownership of CDP / COPT Defense Properties

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 506,737 shares of COPT Defense Properties (US:CDP) valued at $15,506,152 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 457,109 shares of COPT Defense Properties. This represents a change in shares of 10.86% during the quarter. The current value of the position is $15,865,935 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)
2026-05-13 2026-03-31 13F COPT DEFENSE PROPERTIES COM 22002T108 506,737 49,628 10.86 16 25.00 0.0216
2026-02-10 2025-12-31 13F COPT DEFENSE PROPERTIES COM 22002T108 457,109 46,810 11.41 13 9.09 0.0180
2025-11-13 2025-09-30 13F COPT DEFENSE PROPERTIES SHS BEN INT COM 22002T108 410,299 73,006 21.64 12 22.22 0.0174
2025-08-13 2025-06-30 13F COPT DEFENSE PROPERTIES COM 22002T108 337,293 51,927 18.20 9 28.57 0.0148
2025-05-08 2025-03-31 13F COPT DEFENSE PROPERTIES COM 22002T108 285,366 22,016 8.36 8 -12.50 0.0144
2025-02-10 2024-12-31 13F COPT DEFENSE PROPERTIES COM 22002T108 263,350 32,219 13.94 8 14.29 0.0152
2024-11-06 2024-09-30 13F COPT DEFENSE PROPERTIES COM 22002T108 231,131 27,812 13.68 7 40.00 0.0137
2024-08-01 2024-06-30 13F COPT DEFENSE PROPERTIES COM 22002T108 203,319 32,315 18.90 5 25.00 0.0111
2024-04-25 2024-03-31 13F COPT DEFENSE PROPERTIES SHS BEN INT COM 22002T108 171,004 1,576 0.93 4 0.00 0.0095
2024-02-06 2023-12-31 13F COPT DEFENSE PROPERTIES SHS BEN INT COM 22002T108 169,428 50,843 42.87 4 100.00 0.0114
2023-11-13 2023-09-30 13F COPT DEFENSE PROPERTIES COM 22002T108 118,585 20,952 21.46 3 0.00 0.0086
2023-08-15 2023-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT COM 22002T108 97,633 48,792 99.90 2 100.00 0.0072
2023-05-11 2023-03-31 13F CORPORATE OFFICE COM 22002T108 48,841 -36,506 -42.77 1 -50.00 0.0040
2023-01-27 2022-12-31 13F CORPORATE OFFICE PPTYS COM 22002T108 85,347 16,865 24.63 2 -99.87 0.0084
2022-11-14 2022-09-30 13F CORPORATE OFFICES PPTY TR COM 22002T108 68,482 38,910 131.58 1,591 105.56 0.0067
2022-08-12 2022-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 29,572 19,001 179.75 774 156.29 0.0034
2022-05-12 2022-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT COM 22002T108 10,571 10,571 302 0.0012
2021-02-12 2020-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT COM 22002T108 0 -50,355 -100.00 0 -100.00
2020-11-12 2020-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT COM 22002T108 50,355 -33,875 -40.22 1,195 -44.00 0.0075
2020-08-11 2020-06-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT COM 22002T108 84,230 -63,141 -42.84 2,134 -34.58 0.0142
2020-04-27 2020-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 147,371 -29,847 -16.84 3,262 -37.35 0.0266
2020-02-10 2019-12-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 177,218 26,297 17.42 5,207 15.87 0.0367
2019-11-12 2019-09-30 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 150,921 38,130 33.81 4,494 51.11 0.0357
2019-08-12 2019-06-30 13F CORPORATE OFFICE PPTYS COM 22002T108 112,791 31,294 38.40 2,974 33.66 0.0243
2019-05-15 2019-03-31 13F/A-1 CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 81,497 81,497 2,225 0.0195
2019-05-15 2019-03-31 13F CORPORATE OFFICE PPTYS TR SH BEN INT 22002T108 81,497 2,225
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.