Subscribe Now to unlock all the Features! Learn More
Get Ownership Summary for  
Print Print Add Ownership Summary to Dashboard
BLUEBIRD BIO, INC. (BLUE) Ownership Summary
Institutional Holders
Total Number of Holders 187
% of Shares Outstanding 40.67%
Total Shares Held 78,390,496
Total Value of Holdings $41,468,572.38
Net Activity (28,883,187)
 
Top 5 Holders Shares Held Shares Changed
BLACKROCK INC. 15,442,212 263,650
VANGUARD GROUP INC 10,301,300 (197,160)
AMERIPRISE FINANCIAL INC 6,391,637 (561)
MILLENNIUM MANAGEMENT LLC 5,146,653 (1,092,888)
PALO ALTO INVESTORS LP 4,633,351 73,180

 See All Results
Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades012
Number of Buys00
Number of Sells012
Net Activity 0 (42,517)
 
Top 5 TradesShares Traded Date
KLIMA THOMAS J3,8346/3/2024
KLIMA THOMAS J4,5733/4/2024
OBENSHAIN ANDREW6,0953/4/2024
COLVIN RICHARD A6,7703/1/2024
KLIMA THOMAS J2,7142/5/2024

 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/A   STATE STREET CORP  04/10/24   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   PFM HEALTH SCIENCES, 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   TANG CAPITAL PARTNERS 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   ALYESKA INVESTMENT GROUP, L.P.  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   GRANAHAN INVESTMENT MANAGEMENT, LLC  02/14/24   File this document to a folder.