---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-029086"
form_type: "8-K"
ticker: "LITE"
cik: "0001633978"
company_name: "Lumentum Holdings Inc."
filed_at: "2025-06-03T23:59:59+00:00"
generated_at: "2026-05-20T01:41:45.740416+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "low"
source: SEC EDGAR
---

# Lumentum updates Q4 FY25 guidance; specific figures not disclosed in filing text

## Summary
- Announced updated guidance for fiscal Q4 ending June 28, 2025.
- Updated revenue outlook and other guidance details provided in Exhibit 99.1.
- Management to discuss the updated outlook at BofA Global Tech Conference on June 4, 2025.
- Presentation attached as exhibit; concrete figures not available in filing excerpt.

## SEC filing metadata
- accession: 0001628280-25-029086
- form_type: 8-K
- ticker: LITE
- cik: 0001633978
- company_name: Lumentum Holdings Inc.
- filed_at: 2025-06-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1633978/000162828025029086/0001628280-25-029086-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1633978/000162828025029086/lite-20250603.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-029086
- JSON: https://secwatch.observer/filing/0001628280-25-029086.json
- Plain text: https://secwatch.observer/filing/0001628280-25-029086.txt

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