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ATARA BIOTHERAPEUTICS, INC. (ATRA) Ownership Summary
Institutional Holders
Total Number of Holders 111
% of Shares Outstanding 68.77%
Total Shares Held 3,372,765
Total Value of Holdings $28,668,502.50
Net Activity 693,313
 
Top 5 Holders Shares Held Shares Changed
ECOR1 CAPITAL, LLC 406,682 4,000
REDMILE GROUP, LLC 370,532 6,274
BLACKROCK INC. 273,259 (10,230)
BANK OF AMERICA CORP /DE/ 263,223 255,658
CITADEL ADVISORS LLC 260,483 249,961

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Insider Trades
No data is presently available.
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   ADIUMENTUM CAPITAL FUND I LP  05/22/24   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   CITADEL ADVISORS LLC  03/18/24   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   MAVERICK CAPITAL LTD  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   REDMILE GROUP, LLC  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   VANGUARD GROUP INC  02/13/24   File this document to a folder.