---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-023201"
form_type: "8-K"
ticker: "ON"
cik: "0001097864"
company_name: "ON SEMICONDUCTOR CORP"
filed_at: "2025-02-10T23:59:59+00:00"
generated_at: "2026-05-26T23:47:27.106931+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# onsemi Q4 rev $1.72B (-15% YoY), EPS $0.88; Q1 guide weak: rev $1.35-1.45B, EPS $0.42-0.52

## Summary
- Q4 revenue $1,722.5M (-15% YoY); GAAP diluted EPS $0.88, non-GAAP $0.95.
- Full year FY2024 revenue $7,082.3M (-14% YoY); GAAP EPS $3.63, non-GAAP $3.98.
- Free cash flow $1.2B in FY2024, up 3x YoY; 54% returned via buybacks.
- Q1 2025 guidance: revenue $1,350-1,450M, GAAP gross margin 38.9-40.9%, GAAP EPS $0.42-0.52.
- Segment PSG (-16% YoY) and AMG (-18% YoY) declined; ISG flat (-2% YoY, up 9% sequentially).

## SEC filing metadata
- accession: 0001193125-25-023201
- form_type: 8-K
- ticker: ON
- cik: 0001097864
- company_name: ON SEMICONDUCTOR CORP
- filed_at: 2025-02-10T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1097864/000119312525023201/0001193125-25-023201-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1097864/000119312525023201/d926041d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-023201
- JSON: https://secwatch.observer/filing/0001193125-25-023201.json
- Plain text: https://secwatch.observer/filing/0001193125-25-023201.txt

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