---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-008996"
form_type: "8-K"
ticker: "AMS"
cik: "0000744825"
company_name: "AMERICAN SHARED HOSPITAL SERVICES"
filed_at: "2026-03-19T23:59:59+00:00"
generated_at: "2026-05-15T09:45:20.721435+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "medium"
source: SEC EDGAR
---

# ASHS extends Orlando Health proton beam lease 7 years to 2033; payment based on technical component collections

## Summary
- Lease term extended from April 6, 2026 to April 5, 2033 for Mevion S250 proton therapy system.
- Lease payments during extension set as decreasing percentage of Technical Component Collections (percentages redacted).
- Orlando Health granted purchase option exercisable April 2030–2032 at redacted price; removal required if not exercised.
- ASHS must remove equipment at own cost; must post surety bond or alternative security for removal obligation.
- Both parties restricted from launching competing proton programs in central Florida before April 2033; ASHS gets ROFO on any sale.

## SEC filing metadata
- accession: 0001437749-26-008996
- form_type: 8-K
- ticker: AMS
- cik: 0000744825
- company_name: AMERICAN SHARED HOSPITAL SERVICES
- filed_at: 2026-03-19T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: medium
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/744825/000143774926008996/0001437749-26-008996-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/744825/000143774926008996/asha20260319_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-008996
- JSON: https://secwatch.observer/filing/0001437749-26-008996.json
- Plain text: https://secwatch.observer/filing/0001437749-26-008996.txt

## Key facts
- Material Agreements
  AMERICAN SHARED HOSPITAL SERVICES amended Amendment Two to Proton Beam Radiation Therapy Lease Agreement with Orlando Health, Inc. (effective 2026-03-13).
  - Action: amendment
  - Agreement: lease
  - Counterparty: Orlando Health, Inc.
  - Effective: 2026-03-13
  source text: On March 13, 2026, the Company and Orlando Health entered into Amendment Two to Proton Beam Radiation Therapy Lease Agreement (the “Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/744825/000143774926008996/0001437749-26-008996-index.htm

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