---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-043246"
form_type: "8-K/A"
ticker: "ASYS"
cik: "0000720500"
company_name: "AMTECH SYSTEMS INC"
filed_at: "2023-08-17T23:59:59+00:00"
generated_at: "2026-06-11T08:07:04.008718+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Amtech Systems appoints Robert C. Daigle as CEO, discloses employment terms; Whang resigns board

## Summary
- Robert C. Daigle succeeds Michael Whang as President and CEO effective Aug 8, 2023; Whang resigned board on Aug 16, 2023.
- Daigle receives $450,000 annual base salary and is eligible for company's executive bonus program.
- Option to purchase 150,000 shares granted; 50,000 vest immediately, remainder over 3-year term.
- Annual RSU grant of $500,000 fair value on effective date and anniversaries; vests fully on one-year anniversary.
- Daigle previously CTO of Rogers Corporation, led divisions with $150M+ revenue.

## SEC filing metadata
- accession: 0000950170-23-043246
- form_type: 8-K/A
- ticker: ASYS
- cik: 0000720500
- company_name: AMTECH SYSTEMS INC
- filed_at: 2023-08-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000095017023043246/0000950170-23-043246-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720500/000095017023043246/asys-20230808.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-043246
- JSON: https://secwatch.observer/filing/0000950170-23-043246.json
- Plain text: https://secwatch.observer/filing/0000950170-23-043246.txt

## Key facts
- Executive change
  Robert C. Daigle was appointed as President and Chief Executive Officer at AMTECH SYSTEMS INC.
  - Action: appointed
  - Role: President and Chief Executive Officer
  source text: on August 8, 2023, the Board of Directors (the “ Board ”) of the Company approved the appointment of Robert C. Daigle to succeed Michael Whang as President and Chief Executive Officer of the Company effective August 8, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023043246/0000950170-23-043246-index.htm
- Executive change
  Michael Whang departed as President and Chief Executive Officer at AMTECH SYSTEMS INC.
  - Role: President and Chief Executive Officer
  source text: on August 8, 2023, the Board of Directors (the “ Board ”) of the Company approved the appointment of Robert C. Daigle to succeed Michael Whang as President and Chief Executive Officer of the Company effective August 8, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023043246/0000950170-23-043246-index.htm
- Executive change
  Michael Whang resigned as Member of the Board at AMTECH SYSTEMS INC.
  - Action: resigned
  - Role: Member of the Board
  source text: On August 16, 2023, Michael Whang notified the Company of his decision to resign as a member of the Board, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/720500/000095017023043246/0000950170-23-043246-index.htm

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