---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-319228"
form_type: "8-K"
ticker: "ASYS"
cik: "0000720500"
company_name: "AMTECH SYSTEMS INC"
filed_at: "2025-12-15T23:59:59+00:00"
generated_at: "2026-05-16T13:17:16.673385+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Amtech Systems appoints Mark Weaver as Interim CFO effective Dec 16

## Summary
- Weaver replaces Wade Jenke, who resigned as CFO effective Dec 29, 2025.
- Weaver, 65, served as VP/CAO at Rogers Corp (2017-2024) and other public firms.
- Interim CFO role expected to end March 30, 2026; base salary of $290,000.
- Appointment approved by Board on Dec 9, 2025; at-will arrangement.

## SEC filing metadata
- accession: 0001193125-25-319228
- form_type: 8-K
- ticker: ASYS
- cik: 0000720500
- company_name: AMTECH SYSTEMS INC
- filed_at: 2025-12-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720500/000119312525319228/0001193125-25-319228-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720500/000119312525319228/asys-20251209.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-319228
- JSON: https://secwatch.observer/filing/0001193125-25-319228.json
- Plain text: https://secwatch.observer/filing/0001193125-25-319228.txt

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