TESARO, Inc. Institutional Ownership

TSRO 
$29.41
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0.27
0.93%
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Exchange: NASDAQ
Industry: Health Care
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary


Institutional Ownership 87.58%
Total Shares Outstanding (millions) 36
Total Value of Holdings (millions) $919

Active Positions

Holders Shares
Increased Positions 58 6,451,405
Decreased Positions 45 1,762,067
Held Positions 11 23,311,452
Total Institutional Shares 114 31,524,924

New and Sold Out Positions


Holders Shares
New Positions 21 3,087,470
Sold Out Positions 19 791,230

21 New Institutional Holders
3,087,470 New Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
HEALTHCOR MANAGEMENT, L.P. 03/31/2014 1,400,000 1,400,000 New 40,796
ORBIMED ADVISORS LLC 03/31/2014 847,800 847,800 New 24,705
APEX CAPITAL, LLC 03/31/2014 325,000 325,000 New 9,471
LORD, ABBETT & CO. LLC 03/31/2014 157,857 157,857 New 4,600
SABBY MANAGEMENT, LLC 03/31/2014 98,500 98,500 New 2,870
PDT PARTNERS, LLC 03/31/2014 42,618 42,618 New 1,242
SUFFOLK CAPITAL MANAGEMENT LLC 03/31/2014 42,500 42,500 New 1,238
LAURION CAPITAL MANAGEMENT LP 03/31/2014 34,394 34,394 New 1,002
ABSOLUTE RETURN CAPITAL, LLC 03/31/2014 32,486 32,486 New 947
TFS CAPITAL LLC 06/30/2014 23,955 23,955 New 698
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC 03/31/2014 15,675 15,675 New 457
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. 03/31/2014 15,400 15,400 New 449
PROSHARE ADVISORS LLC 03/31/2014 14,948 14,948 New 436
SCHONFELD GROUP HOLDINGS LLC 03/31/2014 12,349 12,349 New 360
MARSHALL WACE NORTH AMERICA, L.P. 12/31/2013 9,721 9,721 New 283

Institutional Holdings information for GOOG is filed by major institutions on form 13-F with the Securities and Exchange Commission.
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