---
schema_version: "secwatch.filing_event.v1"
accession: "0000004904-25-000165"
form_type: "8-K"
ticker: "AEP"
cik: "0000004904"
company_name: "AMERICAN ELECTRIC POWER CO INC"
filed_at: "2025-09-25T23:59:59+00:00"
generated_at: "2026-05-17T05:43:23.506108+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# AEP issues $2B in junior subordinated debentures at 5.800% and 6.050% due 2056

## Summary
- Series C: $1.1B at 5.800% Fixed-to-Fixed Reset Rate, due 2056.
- Series D: $900M at 6.050% Fixed-to-Fixed Reset Rate, due 2056.
- Underwriters include BofA Securities, Goldman Sachs, Mizuho, Morgan Stanley, Truist.
- Supplemental indenture establishing terms dated September 25, 2025.

## SEC filing metadata
- accession: 0000004904-25-000165
- form_type: 8-K
- ticker: AEP
- cik: 0000004904
- company_name: AMERICAN ELECTRIC POWER CO INC
- filed_at: 2025-09-25T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/4904/000000490425000165/0000004904-25-000165-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/4904/000000490425000165/aep-20250923.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000004904-25-000165
- JSON: https://secwatch.observer/filing/0000004904-25-000165.json
- Plain text: https://secwatch.observer/filing/0000004904-25-000165.txt

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