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TESARO, Inc. Institutional Ownership

TSRO 
$35.91
*  
0.03
  negative  
0.08%
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*Delayed - data as of May 17, 2013 
Exchange: NASDAQ
Industry: Consumer Durables
Community Rating:
 
 

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Company Details

Institutional Ownership
Type Value
Total Shares Out Standing (millions): 33
Market Capitalization ($ millions): $858
Institutional Ownership: 73.38%
Price (as of 03/31/2013) 35.91

Ownership Summary

Ownership Analysis # of Holders Shares
Total Shares Held: 63 23,905,713
New Positions: 27 3,037,872
Increased Positions: 48 5,745,166
Decreased Positions: 10 158,827
Holders With Activity: 58 5,903,993
Sold Out Positions: 2 100,295

Institutional Holdings information for TSRO is filed by major institutions on form 13-F with the Securities and Exchange Commission. Learn more about the information on this page in the help area for Institutional Holdings.


58 Activity Institutional Holders
5,903,993 Activity Total Shares Held

Click on the column header links to resort ascending (^) or descending (v).

Owner Name Date Shared Held Change (Shares) Change(%) Value(in 1,000s)
WELLINGTON MANAGEMENT CO LLP 03/31/2013 3,311,902 1,916,182 137.29 118,930
PRICE T ROWE ASSOCIATES INC /MD/ 03/31/2013 1,444,991 (3,800) (0.26) 51,890
ALLIANCEBERNSTEIN L.P. 03/31/2013 763,510 (36,426) (4.55) 27,418
FMR LLC 03/31/2013 759,700 759,700 New 27,281
ORACLE INVESTMENT MANAGEMENT INC 03/31/2013 677,112 20,300 3.09 24,315
ADAGE CAPITAL PARTNERS GP LLC 03/31/2013 497,269 247,380 99.00 17,857
DEERFIELD MANAGEMENT CO /NY 03/31/2013 452,105 189,379 72.08 16,235
AMERIPRISE FINANCIAL INC 03/31/2013 451,687 (8,761) (1.9) 16,220
POLAR CAPITAL LLP 03/31/2013 394,049 394,049 New 14,150
VANGUARD GROUP INC 03/31/2013 349,378 115,094 49.13 12,546
JENNISON ASSOCIATES LLC 03/31/2013 348,007 348,007 New 12,497
PERCEPTIVE ADVISORS LLC 03/31/2013 197,900 197,900 New 7,107
PARTNER FUND MANAGEMENT, L.P. 03/31/2013 196,454 196,454 New 7,055
JPMORGAN CHASE & CO 03/31/2013 175,228 175,228 New 6,292
PUTNAM INVESTMENT MANAGEMENT LLC 03/31/2013 170,000 45,000 36 6,105