// company-profile
American Shared Hospital Services
AMSExchangeNYSESectorServices-Medical LaboratoriesInc.CAFilings7Insiders5
// api This American Shared Hospital Services insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, American Shared Hospital Services insiders bought $0 across 1 transaction with no open-market sales.
- Most active insider: Stachowiak Raymond C with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of American Shared Hospital Services as of 2026-03-31
Total reported AUM
$1.4M
QoQ change
-22.2%
Reporting period
2026-03-31
#1
DIMENSIONAL FUND ADVISORS LP
CIK 354204
$294,842
203K shares
#2
Corient Private Wealth LLC
CIK 1948780
$232,811
161K shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$222,919
154K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 26, 2026 | Stachowiak Raymond C | AMS | Award | 100,000 | $0.00 | $0K |
| Jun 26, 2025 | Stachowiak Raymond C | AMS | Award | 110,000 | $0.00 | $0K |
| Apr 30, 2025 | Tagawa Craig Kenji | AMS | Award | 5,613 | $0.00 | $0K |
| Dec 19, 2024 | Frech Raymond Scott | AMS | Award | 50,000 | $0.00 | $0K |
| Oct 14, 2024 | Delanois Gary | AMS | Award | 120,000 | $0.00 | $0K |
2 more transactions hidden
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