---
schema_version: "secwatch.filing_event.v1"
accession: "0001130310-25-000105"
form_type: "8-K"
ticker: "CNP"
cik: "0001130310"
company_name: "CENTERPOINT ENERGY INC"
filed_at: "2025-07-01T23:59:59+00:00"
generated_at: "2026-05-18T09:54:15.588510+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# CenterPoint subsidiary SIGECO issues $350M in first mortgage bonds at 5.09%-6.18%

## Summary
- SIGECO sells $100M 5.09% bonds due 2031, $105M 5.52% due 2035, $45M 5.77% due 2040, $100M 6.18% due 2055.
- Proceeds used for general corporate purposes: repaying short-term debt, refunding long-term debt, and funding capital expenditures.
- Bonds secured under amended mortgage indenture; ratably with other first mortgage bonds.
- First closing July 1, 2025 for 2025B bonds; second closing by Oct 1, 2025 for 2025C bonds.

## SEC filing metadata
- accession: 0001130310-25-000105
- form_type: 8-K
- ticker: CNP
- cik: 0001130310
- company_name: CENTERPOINT ENERGY INC
- filed_at: 2025-07-01T23:59:59+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/1130310/000113031025000105/0001130310-25-000105-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1130310/000113031025000105/cnp-20250701.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001130310-25-000105
- JSON: https://secwatch.observer/filing/0001130310-25-000105.json
- Plain text: https://secwatch.observer/filing/0001130310-25-000105.txt

## Key facts
- Debt Financings
  CENTERPOINT ENERGY INC incurred mortgage of $100,000,000 with Institutional investors at 5.09% maturing February 2, 2031.
  - Instrument: mortgage
  - Principal: $100,000,000
  - Counterparty: Institutional investors
  - Rate: 5.09%
  - Maturity: February 2, 2031
  - Event: incurrence
  source text: (the “Company”), and certain institutional investors in the private placement market (“Purchasers”) entered into a Bond Purchase Agreement (“Bond Purchase Agreement”), under which SIGECO agreed to sell, and each Purchaser agreed to severally purchase (i) on July 1, 2025, $100,000,000 5.09% First Mortgage Bonds, Series 2025B, Tranche A due 2031 (the “Series 2025B Tranche A Bonds”) and $105,000,000 5.52% First Mortgage Bonds, Series 2025B, Tranche B due 2035 (the “Series 2025B Tranche B Bonds” and together with the Series 2025B Tranche A Bonds, the “Series 2025B Bonds”), and (ii) on October 1, 2025, or such sooner date, as may be selected by SIGECO upon not less than five business days’ advance notice, $45,000,000 5.77% First Mortgage Bonds, Series 2025C, Tranche A due 2040 (the “Series 2025C Tranche A Bonds”) and $100,000,000 6.18% First Mortgage Bonds, Series 2025C, Tranche B due 2055 (t
  evidence_url: https://www.sec.gov/Archives/edgar/data/1130310/000113031025000105/0001130310-25-000105-index.htm
- Debt Financings
  CENTERPOINT ENERGY INC incurred mortgage of $105,000,000 with Institutional investors at 5.52% maturing July 2, 2035.
  - Instrument: mortgage
  - Principal: $105,000,000
  - Counterparty: Institutional investors
  - Rate: 5.52%
  - Maturity: July 2, 2035
  - Event: incurrence
  source text: (the “Company”), and certain institutional investors in the private placement market (“Purchasers”) entered into a Bond Purchase Agreement (“Bond Purchase Agreement”), under which SIGECO agreed to sell, and each Purchaser agreed to severally purchase (i) on July 1, 2025, $100,000,000 5.09% First Mortgage Bonds, Series 2025B, Tranche A due 2031 (the “Series 2025B Tranche A Bonds”) and $105,000,000 5.52% First Mortgage Bonds, Series 2025B, Tranche B due 2035 (the “Series 2025B Tranche B Bonds” and together with the Series 2025B Tranche A Bonds, the “Series 2025B Bonds”), and (ii) on October 1, 2025, or such sooner date, as may be selected by SIGECO upon not less than five business days’ advance notice, $45,000,000 5.77% First Mortgage Bonds, Series 2025C, Tranche A due 2040 (the “Series 2025C Tranche A Bonds”) and $100,000,000 6.18% First Mortgage Bonds, Series 2025C, Tranche B due 2055 (t
  evidence_url: https://www.sec.gov/Archives/edgar/data/1130310/000113031025000105/0001130310-25-000105-index.htm

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