---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-21-004728"
form_type: "8-K"
ticker: "ASYS"
cik: "0000720500"
company_name: "AMTECH SYSTEMS INC"
filed_at: "2021-11-17T23:59:59+00:00"
generated_at: "2026-06-28T07:32:46.593366+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Amtech Q4 revenue $24.3M, EPS $0.05; FY2021 revenue $85.2M, orders up 84% YoY

## Summary
- Net revenue $24.3M in Q4, up 61% YoY; full year $85.2M, up 30% YoY.
- Q4 operating income $1.3M vs loss $1.2M in prior year; diluted EPS $0.05 vs $(0.14).
- Customer orders $34.2M in Q4, book-to-bill 1.4:1; full year orders $115.4M, up 84%.
- Record backlog $44.1M; Q1 FY2022 revenue guidance $24-27M, gross margin ~40%.
- Management cites supply chain headwinds but sees healthy long-term growth drivers.

## SEC filing metadata
- accession: 0000950170-21-004728
- form_type: 8-K
- ticker: ASYS
- cik: 0000720500
- company_name: AMTECH SYSTEMS INC
- filed_at: 2021-11-17T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000095017021004728/0000950170-21-004728-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720500/000095017021004728/asys-20211117.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-21-004728
- JSON: https://secwatch.observer/filing/0000950170-21-004728.json
- Plain text: https://secwatch.observer/filing/0000950170-21-004728.txt

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