---
schema_version: "secwatch.filing_event.v1"
accession: "0001047127-21-000038"
form_type: "8-K"
ticker: "AMKR"
cik: "0001047127"
company_name: "AMKOR TECHNOLOGY, INC."
filed_at: "2021-10-25T23:59:59+00:00"
generated_at: "2026-06-28T18:19:34.833425+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Amkor Technology posts record Q3 2021 revenue of $1.68B, EPS $0.74, up 95% YoY

## Summary
- Record net sales $1.68B, up 20% sequentially and 24% YoY; all end markets set new records.
- Record net income $181M ($0.74 diluted EPS) vs $92M ($0.38) a year ago, nearly doubling EPS.
- Gross margin 19.3%; operating income $211M (12.6% margin), both records.
- Q4 2021 outlook: net sales $1.59-$1.69B, gross margin 18.0%-20.5%, EPS $0.55-$0.75.
- Full-year 2021 capex guided at ~$775M; quarterly dividend of $0.04/sh paid Sept 30.

## SEC filing metadata
- accession: 0001047127-21-000038
- form_type: 8-K
- ticker: AMKR
- cik: 0001047127
- company_name: AMKOR TECHNOLOGY, INC.
- filed_at: 2021-10-25T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1047127/000104712721000038/0001047127-21-000038-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1047127/000104712721000038/amkr-20211025.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001047127-21-000038
- JSON: https://secwatch.observer/filing/0001047127-21-000038.json
- Plain text: https://secwatch.observer/filing/0001047127-21-000038.txt

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