---
schema_version: "secwatch.filing_event.v1"
accession: "0001168165-26-000018"
form_type: "8-K"
ticker: null
cik: "0001168165"
company_name: "CONSTELLATION ENERGY GENERATION LLC"
filed_at: "2026-06-25T11:01:37+00:00"
generated_at: "2026-06-25T11:05:34.729737+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Constellation extends note exchange offer to July 10; 99.7%+ already tendered

## Summary
- Exchange offers extended to 5:00 p.m. ET on July 10, 2026 from original June 24 expiry.
- Approximately $2.3B aggregate principal of unregistered notes being exchanged for registered notes.
- As of June 24, 99.89% of 4.625% 2029 notes, 99.97% of 5.000% 2031 notes, and 99.71% of 3.750% 2031 notes tendered.
- Extension driven by desire to allow remaining outstanding notes to be exchanged.
- All other terms and conditions of exchange offers remain unchanged.

## SEC filing metadata
- accession: 0001168165-26-000018
- form_type: 8-K
- cik: 0001168165
- company_name: CONSTELLATION ENERGY GENERATION LLC
- filed_at: 2026-06-25T11:01:37+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000018/0001168165-26-000018-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000018/ceg-20260625.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001168165-26-000018
- JSON: https://secwatch.observer/filing/0001168165-26-000018.json
- Plain text: https://secwatch.observer/filing/0001168165-26-000018.txt

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