---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-253508"
form_type: "8-K"
ticker: "WDC"
cik: "0000106040"
company_name: "WESTERN DIGITAL CORP"
filed_at: "2023-10-10T23:59:59+00:00"
generated_at: "2026-06-10T01:59:50.882737+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Western Digital subsidiary guarantees 2024 convertible notes

## Summary
- Western Digital Technologies, Inc. executed a second supplemental indenture on Oct 10, 2023.
- WDT guarantees Western Digital's 1.50% Convertible Senior Notes due 2024.
- Guarantee remains in effect only while WDT guarantees the 4.750% Senior Notes due 2026.
- Guarantee will be automatically released when no longer required under the indenture.

## SEC filing metadata
- accession: 0001193125-23-253508
- form_type: 8-K
- ticker: WDC
- cik: 0000106040
- company_name: WESTERN DIGITAL CORP
- filed_at: 2023-10-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/106040/000119312523253508/0001193125-23-253508-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/106040/000119312523253508/d505633d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-253508
- JSON: https://secwatch.observer/filing/0001193125-23-253508.json
- Plain text: https://secwatch.observer/filing/0001193125-23-253508.txt

## Key facts
- Material Agreements
  WESTERN DIGITAL CORP entered into Second Supplemental Indenture with Western Digital Technologies, Inc. valued at Guarantee of obligations under 1.50% Convertible Senior Notes due 2024 (effective 2023-10-10).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: Western Digital Technologies, Inc.
  - Value: Guarantee of obligations under 1.50% Convertible Senior Notes due 2024
  - Effective: 2023-10-10
  source text: On October 10, 2023, Western Digital Technologies, Inc. (“ WDT ”), a wholly-owned subsidiary of Western Digital Corporation, entered into a second supplemental indenture (“ Second Supplemental Indenture ”) to the indenture, dated as of February 13, 2019 (the “ Indenture ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/106040/000119312523253508/0001193125-23-253508-index.htm

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