---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-095906"
form_type: "8-K"
ticker: "CDP"
cik: "0000860546"
company_name: "COPT DEFENSE PROPERTIES"
filed_at: "2025-10-02T23:59:59+00:00"
generated_at: "2026-05-17T05:00:35.354538+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# COPT Defense Properties issues $400M of 4.500% Senior Notes due 2030

## Summary
- CDPLP, operating partnership of COPT Defense Properties, issued $400M aggregate principal of 4.500% Senior Notes due 2030 on October 2, 2025.
- The Notes are fully and unconditionally guaranteed by COPT Defense Properties (CDP).
- The offering was registered under the Securities Act via Form S-3ASR filed April 8, 2025, with a prospectus supplement dated September 23, 2025.
- Terms are governed by a Base Indenture (April 8, 2019) and a Fifth Supplemental Indenture dated October 2, 2025, with U.S. Bank Trust as trustee.
- Proceeds from the offering were not disclosed in the filing.

## SEC filing metadata
- accession: 0001104659-25-095906
- form_type: 8-K
- ticker: CDP
- cik: 0000860546
- company_name: COPT DEFENSE PROPERTIES
- filed_at: 2025-10-02T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/860546/000110465925095906/0001104659-25-095906-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/860546/000110465925095906/tm2527666d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-095906
- JSON: https://secwatch.observer/filing/0001104659-25-095906.json
- Plain text: https://secwatch.observer/filing/0001104659-25-095906.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.