---
schema_version: "secwatch.filing_event.v1"
accession: "0001168165-26-000010"
form_type: "8-K"
ticker: null
cik: "0001168165"
company_name: "CONSTELLATION ENERGY GENERATION LLC"
filed_at: "2026-05-14T20:23:30+00:00"
generated_at: "2026-05-14T20:25:30.927517+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Constellation Energy Generation issues $2.2B senior notes across three tranches

## Summary
- Issued $750M of 4.550% notes due 2029, $600M of 4.800% notes due 2032, and $850M of 5.300% notes due 2036.
- Proceeds to repay short-term borrowings/commercial paper and for general corporate purposes.
- Interest on 2029 and 2036 notes payable semiannually starting Dec 1, 2026; 2032 notes start Jul 15, 2026.
- Underwriting agreement with Barclays, BNP Paribas, J.P. Morgan, Mizuho, MUFG, and RBC Capital Markets.

## SEC filing metadata
- accession: 0001168165-26-000010
- form_type: 8-K
- cik: 0001168165
- company_name: CONSTELLATION ENERGY GENERATION LLC
- filed_at: 2026-05-14T20:23:30+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/0001168165-26-000010-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/ceg-20260514.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001168165-26-000010
- JSON: https://secwatch.observer/filing/0001168165-26-000010.json
- Plain text: https://secwatch.observer/filing/0001168165-26-000010.txt

## Key facts
- Debt Financings
  CONSTELLATION ENERGY GENERATION LLC incurred senior notes of $850,000,000 in aggregate principal amount with U.S. Bank Trust Company, National Association at 5.300% per year maturing June 1, 2036.
  - Instrument: senior notes
  - Principal: $850,000,000 in aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 5.300% per year
  - Maturity: June 1, 2036
  - Event: incurrence
  source text: Creation of a Direct Financial Obligation The Senior Notes were issued under an indenture, dated as of September 28, 2007, between Constellation and U.S. Bank Trust Company, National Association, as trustee. The proceeds of the Senior Notes will be used, after deducting underwriters’ discounts and commissions and other estimated fees and expenses, to (i) to repay short-term borrowings, including commercial paper obligations and (ii) for general corporate purposes.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/0001168165-26-000010-index.htm
- Debt Financings
  CONSTELLATION ENERGY GENERATION LLC incurred senior notes of $750,000,000 in aggregate principal amount with U.S. Bank Trust Company, National Association at 4.550% per year maturing June 1, 2029.
  - Instrument: senior notes
  - Principal: $750,000,000 in aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 4.550% per year
  - Maturity: June 1, 2029
  - Event: incurrence
  source text: On May 14, 2026, Constellation Energy Generation, LLC (Constellation) issued and sold $750,000,000 in aggregate principal amount of 4.550% Senior Notes due 2029
  evidence_url: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/0001168165-26-000010-index.htm
- Debt Financings
  CONSTELLATION ENERGY GENERATION LLC incurred senior notes of $600,000,000 in aggregate principal amount with U.S. Bank Trust Company, National Association at 4.800% per year maturing January 15, 2032.
  - Instrument: senior notes
  - Principal: $600,000,000 in aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 4.800% per year
  - Maturity: January 15, 2032
  - Event: incurrence
  source text: Creation of a Direct Financial Obligation The Senior Notes were issued under an indenture, dated as of September 28, 2007, between Constellation and U.S. Bank Trust Company, National Association, as trustee. The proceeds of the Senior Notes will be used, after deducting underwriters’ discounts and commissions and other estimated fees and expenses, to (i) to repay short-term borrowings, including commercial paper obligations and (ii) for general corporate purposes.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/0001168165-26-000010-index.htm
- Material Agreements
  CONSTELLATION ENERGY GENERATION LLC entered into Senior Notes valued at $750,000,000 in aggregate principal amount of 4.550% Senior Notes due 2029, $600,000,000 in aggregat (effective 2026-05-14).
  - Action: entry
  - Agreement: notes offering
  - Value: $750,000,000 in aggregate principal amount of 4.550% Senior Notes due 2029, $600,000,000 in aggregat
  - Effective: 2026-05-14
  source text: On May 14, 2026, Constellation Energy Generation, LLC (Constellation) issued and sold $750,000,000 in aggregate principal amount of 4.550% Senior Notes due 2029 (the 2029 Senior Notes), $600,000,000 in aggregate principal amount of 4.800% Senior Notes due 2032 (the 2032 Senior Notes) and $850,000,000 in aggregate principal amount of 5.300% Senior Notes due 2036 (the 2036 Senior Notes, and collectively with the 2029 Senior Notes and the 2032 Senior Notes, the Senior Notes).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1168165/000116816526000010/0001168165-26-000010-index.htm

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