---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-023485"
form_type: "8-K"
ticker: "ON"
cik: "0001097864"
company_name: "ON SEMICONDUCTOR CORP"
filed_at: "2024-02-05T23:59:59+00:00"
generated_at: "2026-06-06T08:58:13.312461+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# onsemi Q4 revenue $2.02B, EPS $1.28; Q1 guidance $1.8-1.9B rev

## Summary
- Q4 revenue $2,018.1M; GAAP gross margin 46.7%, operating margin 30.3%, GAAP diluted EPS $1.28; non-GAAP $1.25.
- Full year 2023 automotive revenue record $4.3B (+29% YoY); silicon carbide revenue 4x YoY.
- FY 2023 share repurchases $564M, representing 140% of free cash flow.
- Q1 2024 guidance: revenue $1.8-1.9B, GAAP gross margin 44.4-46.4%, GAAP diluted EPS $0.94-1.06.

## SEC filing metadata
- accession: 0001193125-24-023485
- form_type: 8-K
- ticker: ON
- cik: 0001097864
- company_name: ON SEMICONDUCTOR CORP
- filed_at: 2024-02-05T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1097864/000119312524023485/0001193125-24-023485-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1097864/000119312524023485/d610011d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-023485
- JSON: https://secwatch.observer/filing/0001193125-24-023485.json
- Plain text: https://secwatch.observer/filing/0001193125-24-023485.txt

## Key facts
- Earnings Releases
  ON SEMICONDUCTOR CORP reported the fourth quarter ended December 31, 2023 results: revenue $2,018.1 million, EPS $1.28.
  - Period: the fourth quarter ended December 31, 2023
  - Revenue: $2,018.1 million
  - EPS: $1.28
  - Result: reported results
  source text: • Fourth quarter revenue of $2,018.1 million • Fourth quarter GAAP and non-GAAP gross margin of 46.7% • GAAP operating margin and non-GAAP operating margin of 30.3% and 31.6%, respectively • GAAP diluted earnings per share and non-GAAP diluted earnings per share of $1.28 and $1.25, respectively
  evidence_url: https://www.sec.gov/Archives/edgar/data/1097864/000119312524023485/0001193125-24-023485-index.htm
- Earnings Releases
  ON SEMICONDUCTOR CORP reported the first quarter of 2024 results: revenue $1,800 to $1,900 million, EPS $0.94 to $1.06. Guidance initiated.
  - Period: the first quarter of 2024
  - Revenue: $1,800 to $1,900 million
  - EPS: $0.94 to $1.06
  - Guidance: initiated
  - Result: guidance update
  source text: Revenue $1,800 to $1,900 million — $1,800 to $1,900 million Gross Margin 44.4% to 46.4% 0.1% 44.5% to 46.5% Operating Expenses $320 to $335 million $15 million $305 to $320 million Other Income and Expense (including interest expense), net ($8 million) — ($8 million) Diluted Earnings Per Share $0.94 to $1.06 $0.04 $0.98 to $1.10
  evidence_url: https://www.sec.gov/Archives/edgar/data/1097864/000119312524023485/0001193125-24-023485-index.htm
- Earnings Releases
  ON SEMICONDUCTOR CORP reported the fiscal year ended December 31, 2023 results: revenue $8,253.0, EPS $4.89.
  - Period: the fiscal year ended December 31, 2023
  - Revenue: $8,253.0
  - EPS: $4.89
  - Result: reported results
  source text: Revenue $8,253.0 $8,326.2 $8,253.0 $8,326.2 Gross Margin 47.1 % 49.0 % 47.1 % 49.2 % Operating Margin 30.8 % 28.3 % 32.3 % 34.5 % Net Income attributable to onsemi $2,183.7 $1,902.2 $2,256.2 $2,347.7 Diluted Earnings Per Share $4.89 $4.25 $5.16 $5.33
  evidence_url: https://www.sec.gov/Archives/edgar/data/1097864/000119312524023485/0001193125-24-023485-index.htm

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