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AMERICAN SHARED HOSPITAL SERVICES (AMS) Ownership Summary
Institutional Holders
Total Number of Holders 22
% of Shares Outstanding 17.12%
Total Shares Held 1,088,584
Total Value of Holdings $3,289,700.85
Net Activity 30,199
 
Top 5 Holders Shares Held Shares Changed
BRIDGEWAY CAPITAL MANAGEMENT, LLC 262,455 720
VANGUARD GROUP INC 181,243 2,572
DIMENSIONAL FUND ADVISORS LP 179,637 8,436
CORIENT PRIVATE WEALTH LLC 160,559 0
ACADIAN ASSET MANAGEMENT LLC 85,475 (924)

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades00
Number of Buys00
Number of Sells00
Net Activity 0 0
 
Top 5 TradesShares Traded Date
STACHOWIAK RAYMOND C120,0003/22/2024
STACHOWIAK RAYMOND C120,0003/28/2023
TAGAWA CRAIG KENJI10,8273/7/2023

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   STACHOWIAK RAYMOND C  04/03/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   RUFFLE JOHN F  12/18/23   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   STACHOWIAK RAYMOND C  05/03/23   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   STACHOWIAK RAYMOND C  05/21/19   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   STACHOWIAK RAYMOND C  02/16/16   File this document to a folder.