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SUPERIOR DRILLING PRODUCTS, INC. (SDPI) Ownership Summary
Institutional Holders
Total Number of Holders 30
% of Shares Outstanding 4.97%
Total Shares Held 1,511,036
Total Value of Holdings $1,858,574.28
Net Activity (119,803)
 
Top 5 Holders Shares Held Shares Changed
VANGUARD GROUP INC 461,640 0
RENAISSANCE TECHNOLOGIES LLC 314,994 (66,816)
BLACK MAPLE CAPITAL MANAGEMENT LP 169,453 169,453
SUSQUEHANNA INTERNATIONAL GROUP, LLP 130,810 79,168
BRIDGEWAY CAPITAL MANAGEMENT, LLC 129,900 (10,000)

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades325
Number of Buys02
Number of Sells323
Net Activity (40,000) (450,729)
 
Top 5 TradesShares Traded Date
EBERWEIN JEFFREY E.5,2628/11/2023
EBERWEIN JEFFREY E.1,6148/9/2023
EBERWEIN JEFFREY E.26,1998/8/2023
EBERWEIN JEFFREY E.3,1808/7/2023
EBERWEIN JEFFREY E.2,2828/2/2023

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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   MEIER G. TROY  03/07/24   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   STAR EQUITY FUND, LP  08/09/23   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   STAR EQUITY FUND, LP  05/09/23   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   STAR EQUITY FUND, LP  02/22/23   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   STAR EQUITY FUND, LP  09/09/22   File this document to a folder.