---
schema_version: "secwatch.filing_event.v1"
accession: "0000937556-25-000086"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2025-05-27T23:59:59+00:00"
generated_at: "2026-05-20T12:34:00.052746+00:00"
event_type: "cyber"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Masimo provides cyber incident update; manufacturing at near full capacity, no material revenue impact expected

## Summary
- Manufacturing running at near full capacity; order-taking, distribution and shipping systems fully operational.
- Company expects majority of out-of-pocket remediation costs covered by cyber insurance; costs non-recurring.
- Reaffirms updated financial outlook for FY 2025 provided May 6; cyber incident not expected to materially impact revenue.
- Incident discovered April 27, 2025; investigation ongoing with third-party experts and law enforcement coordination.
- Company continues optimizing systems to process any delayed orders in a timely manner.

## SEC filing metadata
- accession: 0000937556-25-000086
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2025-05-27T23:59:59+00:00
- event_type: cyber
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000093755625000086/0000937556-25-000086-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000093755625000086/masi-20250527.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000937556-25-000086
- JSON: https://secwatch.observer/filing/0000937556-25-000086.json
- Plain text: https://secwatch.observer/filing/0000937556-25-000086.txt

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