---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-000819"
form_type: "8-K"
ticker: "ASYS"
cik: "0000720500"
company_name: "AMTECH SYSTEMS INC"
filed_at: "2023-01-17T23:59:59+00:00"
generated_at: "2026-06-20T15:01:01.275561+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Amtech Systems acquires Entrepix for $35M in cash/loan; expands CMP/wafer cleaning portfolio

## Summary
- Acquired Entrepix for $35M in cash and a $12M term loan from UMB Bank; closed Jan 17, 2023.
- Entrepix reported trailing-twelve-month revenue of $26.7M (unaudited) as of Dec 31, 2022.
- Deal expected to expand Amtech's CMP and wafer cleaning portfolio, targeting silicon carbide and smaller wafer markets.
- Amtech also entered a $12M term loan (maturing 2028) and $8M revolver (maturing 2024) with UMB Bank.
- Financial statements of Entrepix to be filed by amendment within 71 days.

## SEC filing metadata
- accession: 0000950170-23-000819
- form_type: 8-K
- ticker: ASYS
- cik: 0000720500
- company_name: AMTECH SYSTEMS INC
- filed_at: 2023-01-17T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 2.01, 2.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000095017023000819/0000950170-23-000819-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720500/000095017023000819/asys-20230117.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-000819
- JSON: https://secwatch.observer/filing/0000950170-23-000819.json
- Plain text: https://secwatch.observer/filing/0000950170-23-000819.txt

## Key facts
- M&A Transactions
  AMTECH SYSTEMS INC completed an acquisition involving Entrepix, Inc. for $35.0 million (closed 2023-01-17).
  - Action: acquisition
  - Counterparty: Entrepix, Inc.
  - Consideration: $35.0 million
  - Closing: 2023-01-17
  source text: the Company paid a purchase price of $35.0 million, subject to certain customary purchase price adjustments.
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023000819/0000950170-23-000819-index.htm
- Material Agreements
  AMTECH SYSTEMS INC entered into Loan and Security Agreement with UMB Bank, N.A. (effective 2023-01-17).
  - Action: entry
  - Agreement: credit facility
  - Counterparty: UMB Bank, N.A.
  - Effective: 2023-01-17
  source text: On January 17, 2023, the Company entered into a Loan and Security Agreement (the (“ LSA ”) by and among the Company, its U.S. based wholly owned subsidiaries Bruce Technologies, Inc., a Massachusetts corporation, BTU International, Inc., a Delaware corporation, Intersurface Dynamics, Incorporated, a Connecticut corporation, P.R. Hoffman Machine Products, Inc., an Arizona corporation, and Entrepix, Inc., (collectively the “ Borrowers ”), and UMB Bank, N.A., national banking association (the “ Lender ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023000819/0000950170-23-000819-index.htm
- Material Agreements
  AMTECH SYSTEMS INC entered into Agreement and Plan of Merger with Entrepix, Inc., Emerald Merger Sub, Inc., Timothy P. Tobin, and the Key Shareholders valued at $35.0 million (effective 2023-01-17).
  - Action: entry
  - Agreement: merger
  - Counterparty: Entrepix, Inc., Emerald Merger Sub, Inc., Timothy P. Tobin, and the Key Shareholders
  - Value: $35.0 million
  - Effective: 2023-01-17
  source text: The acquisition was consummated pursuant to the terms of an Agreement and Plan of Merger (the “ Merger Agreement ”), dated January 17, 2023, by and among the Company, Emerald Merger Sub, Inc., an Arizona corporation and wholly owned subsidiary of the Company (“ Merger Sub ”), Entrepix, Timothy P. Tobin, solely in his capacity as the shareholders’ representative, and the Key Shareholders (as defined in the Merger Agreement).
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023000819/0000950170-23-000819-index.htm

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