---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-003268"
form_type: "8-K"
ticker: "UNP"
cik: "0000100885"
company_name: "UNION PACIFIC CORP"
filed_at: "2022-02-14T23:59:59+00:00"
generated_at: "2026-06-27T08:14:51.404641+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Union Pacific issues $3.5B in notes across four maturities up to 2072

## Summary
- Offered $1.25B 2.80% notes due 2032, $500M 3.375% notes due 2042, $1.25B 3.50% notes due 2053, $500M 3.85% notes due 2072.
- Total aggregate principal amount of $3.5B under shelf registration on Form S-3 (File No. 333-252947).
- Underwriters include BofA Securities, Citigroup, Credit Suisse, J.P. Morgan, and Morgan Stanley & Co.
- Underwriting agreement dated February 9, 2022; closing expected shortly.

## SEC filing metadata
- accession: 0001437749-22-003268
- form_type: 8-K
- ticker: UNP
- cik: 0000100885
- company_name: UNION PACIFIC CORP
- filed_at: 2022-02-14T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/100885/000143774922003268/0001437749-22-003268-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/100885/000143774922003268/unp20220210_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-003268
- JSON: https://secwatch.observer/filing/0001437749-22-003268.json
- Plain text: https://secwatch.observer/filing/0001437749-22-003268.txt

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