---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-027080"
form_type: "8-K"
ticker: "DUK"
cik: "0001326160"
company_name: "Duke Energy CORP"
filed_at: "2026-03-12T23:59:59+00:00"
generated_at: "2026-05-15T12:59:16.593216+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Duke Energy closes $1.5B 3% convertible notes due 2029 at 22.5% premium

## Summary
- Sold $1.5B aggregate principal of 3.000% convertible senior notes due March 15, 2029.
- Includes $200M from full exercise of initial purchasers' option; interest payable semiannually.
- Conversion price ~$160.57 per share (22.5% premium over March 9, 2026 closing price).
- Notes are senior unsecured, convertible into cash and/or common shares at Duke's election.
- Maximum common shares issuable upon conversion is 11,443,350, subject to adjustment.

## SEC filing metadata
- accession: 0001104659-26-027080
- form_type: 8-K
- ticker: DUK
- cik: 0001326160
- company_name: Duke Energy CORP
- filed_at: 2026-03-12T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326160/000110465926027080/0001104659-26-027080-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1326160/000110465926027080/tm268071d4_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-027080
- JSON: https://secwatch.observer/filing/0001104659-26-027080.json
- Plain text: https://secwatch.observer/filing/0001104659-26-027080.txt

## Source-grounded claims
- claim_id: 75ee719e3759f60b2a2ac4d3d35537c6ec4c5853
  claim: Duke Energy CORP incurred convertible notes of $1,500,000,000 aggregate principal amount with The Bank of New York Mellon Trust Company, N.A. at 3.000% per year maturing March 15, 2029.
  evidence_excerpt: On March 12, 2026, Duke Energy Corporation (the “Corporation”) completed the sale of $1,500,000,000 aggregate principal amount of 3.000% Convertible Senior Notes due 2029 (the “Notes”), which included an additional $200,000,000 aggregate principal amount of Notes purchased pursuant to the full exercise of the option granted to the Initial Purchasers (as defined herein) pursuant to the Purchase Agreement (as defined herein), in a private offering to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1326160/000110465926027080/0001104659-26-027080-index.htm

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