Subscribe Now to unlock all the Features! Learn More
Get Ownership Summary for  
Print Print Add Ownership Summary to Dashboard
SPERO THERAPEUTICS, INC. (SPRO) Ownership Summary
Institutional Holders
Total Number of Holders 58
% of Shares Outstanding 26.96%
Total Shares Held 14,572,373
Total Value of Holdings $19,964,151.01
Net Activity 117,967
 
Top 5 Holders Shares Held Shares Changed
ANSON FUNDS MANAGEMENT LP 3,750,450 0
VANGUARD GROUP INC 1,770,525 117,093
ATLAS VENTURE ASSOCIATES IX, LLC 1,353,303 0
ACADIAN ASSET MANAGEMENT LLC 1,071,860 309,262
RENAISSANCE TECHNOLOGIES LLC 975,952 121,492

 See All Results
Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades511
Number of Buys00
Number of Sells511
Net Activity (43,323) (273,064)
 
Top 5 TradesShares Traded Date
KEUTZER TIMOTHY2,2138/27/2024
MAHADEVIA ANKIT5,9128/27/2024
SHUKLA SATH2,7578/27/2024
SHUKLA SATH17,6418/5/2024
SHUKLA SATH14,8008/2/2024

 See All Results
5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
Download / Print
  		Actions 
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G   ANSON FUNDS MANAGEMENT LP  02/14/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BIOTECHNOLOGY VALUE FUND L P  02/14/23   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   AQUILO CAPITAL MANAGEMENT, LLC  02/14/23   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   GSK PLC  01/20/23   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   GSK PLC  11/14/22   File this document to a folder.