---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-040835"
form_type: "8-K"
ticker: "ASYS"
cik: "0000720500"
company_name: "AMTECH SYSTEMS INC"
filed_at: "2021-08-04T23:59:59+00:00"
generated_at: "2026-06-29T22:52:21.547965+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Amtech Q3 revenue $23.1M, up 52% YoY; guides Q4 rev $25-27M

## Summary
- Operating income $1.2M vs $0.0M year ago; includes ~$1.1M cyber incident SG&A costs.
- Diluted EPS $0.03 from continuing ops vs ($0.01) in Q3 FY2020.
- Customer orders $30.9M, backlog $34.3M, book-to-bill 1.3:1.
- Q4 FY2021 guidance: revenue $25-27M, gross margin upper 30%, op margin mid-to-upper single digits.
- Unrestricted cash $37.0M; IDI contributed ~$534k to revenue.

## SEC filing metadata
- accession: 0001564590-21-040835
- form_type: 8-K
- ticker: ASYS
- cik: 0000720500
- company_name: AMTECH SYSTEMS INC
- filed_at: 2021-08-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000156459021040835/0001564590-21-040835-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720500/000156459021040835/asys-8k_20210804.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-040835
- JSON: https://secwatch.observer/filing/0001564590-21-040835.json
- Plain text: https://secwatch.observer/filing/0001564590-21-040835.txt

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