---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-003966"
form_type: "8-K"
ticker: "UNP"
cik: "0000100885"
company_name: "UNION PACIFIC CORP"
filed_at: "2023-02-21T23:59:59+00:00"
generated_at: "2026-06-19T06:14:22.539844+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Union Pacific issues $1B in notes: $500M 4.750% due 2026, $500M 4.950% due 2053

## Summary
- Issued $500M of 4.750% Notes due 2026 and $500M of 4.950% Notes due 2053.
- Underwriters include Barclays, Citigroup, J.P. Morgan, and Morgan Stanley.
- Notes issued under indenture dated April 1, 1999 with Bank of New York Mellon as trustee.

## SEC filing metadata
- accession: 0001437749-23-003966
- form_type: 8-K
- ticker: UNP
- cik: 0000100885
- company_name: UNION PACIFIC CORP
- filed_at: 2023-02-21T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/100885/000143774923003966/0001437749-23-003966-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/100885/000143774923003966/unp20230217b_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-003966
- JSON: https://secwatch.observer/filing/0001437749-23-003966.json
- Plain text: https://secwatch.observer/filing/0001437749-23-003966.txt

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