---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-012424"
form_type: "8-K"
ticker: "AMS"
cik: "0000744825"
company_name: "AMERICAN SHARED HOSPITAL SERVICES"
filed_at: "2024-04-18T23:59:59+00:00"
generated_at: "2026-06-03T20:01:03.389021+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# CEO Peter Gaccione dies; Executive Chairman Ray Stachowiak named CEO

## Summary
- CEO Peter Gaccione passed away on April 16, 2024; company announced on April 12.
- Raymond Stachowiak appointed CEO, continuing as Executive Chairman; previously CEO 2020-2023.
- Craig Tagawa named COO in addition to President; no changes to compensation.
- Pending acquisition of 60% interest in three Rhode Island radiation centers; Greg Mercurio appointed SVP of Radiation Oncology.

## SEC filing metadata
- accession: 0001437749-24-012424
- form_type: 8-K
- ticker: AMS
- cik: 0000744825
- company_name: AMERICAN SHARED HOSPITAL SERVICES
- filed_at: 2024-04-18T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/744825/000143774924012424/0001437749-24-012424-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/744825/000143774924012424/asha20240412_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-012424
- JSON: https://secwatch.observer/filing/0001437749-24-012424.json
- Plain text: https://secwatch.observer/filing/0001437749-24-012424.txt

## Key facts
- Executive change
  Craig Tagawa was appointed as Chief Operating Officer at AMERICAN SHARED HOSPITAL SERVICES.
  - Action: appointed
  - Role: Chief Operating Officer
  source text: Craig Tagawa, who has served as the President and Assistant Secretary of the Company since October 1, 2020, was appointed as the Company’s Chief Operating Officer in addition to continuing to serve as the Company’s President and Assistant Secretary.
  evidence_url: https://www.sec.gov/Archives/edgar/data/744825/000143774924012424/0001437749-24-012424-index.htm
- Executive change
  Raymond Stachowiak was appointed as Chief Executive Officer at AMERICAN SHARED HOSPITAL SERVICES.
  - Action: appointed
  - Role: Chief Executive Officer
  source text: Raymond Stachowiak, who has served as the Executive Chairman of the Board since March 7, 2023, was appointed as Chief Executive Officer in addition to continuing to serve as the Company’s Executive Chairman of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/744825/000143774924012424/0001437749-24-012424-index.htm
- Executive change
  Peter Gaccione departed as Chief Executive Officer at AMERICAN SHARED HOSPITAL SERVICES.
  - Role: Chief Executive Officer
  source text: After the recent passing of Peter Gaccione, who served as the Chief Executive Officer of American Shared Hospital Services (the “ Company ”), on April 16, 2024,
  evidence_url: https://www.sec.gov/Archives/edgar/data/744825/000143774924012424/0001437749-24-012424-index.htm

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