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Wednesday, February 10, 2010, 12:57AM ET - U.S. Markets open in 8 hours and 33 minutes. Dow Up 1.52% Nasdaq Up 1.17%
Nxstage Medical, Inc. (NXTM)On Feb 9: 7.81  Up 0.12 (1.56%)  
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Major HoldersGet Major Holders for:
BREAKDOWN
% of Shares Held by All Insider and 5% Owners: 24%
% of Shares Held by Institutional & Mutual Fund Owners: 66%
% of Float Held by Institutional & Mutual Fund Owners: 87%
Number of Institutions Holding Shares: 63

MAJOR DIRECT HOLDERS (FORMS 3 & 4)
HolderSharesReported
UTTERBERG DAVID S8,485,30930-Jun-08
CREDIT SUISSE AG/N/A1-Aug-08
ORBIMED ADVISORS LLCN/A26-Aug-08
SILVERSTEIN JONATHANN/A23-Jul-08
FLYNN JAMES EN/A15-Dec-09


TOP INSTITUTIONAL HOLDERS
HolderShares% OutValue*Reported
DEERFIELD MANAGEMENT4,358,7819.33$29,160,24430-Sep-09
MASSACHUSETTS FINANCIAL SERVICES CO - OTHER2,583,1675.53$17,281,38730-Sep-09
Cortina Asset Management, LLC1,435,0193.07$9,600,27730-Sep-09
Credit Suisse7,201,84215.42$48,180,32230-Sep-09
Credit Suisse/6,929,26014.84$46,356,74930-Sep-09
ORBIMED ADVISORS LLC.5,718,25612.25$38,255,13230-Sep-09
DIMENSIONAL FUND ADVISORS LP931,3731.99$6,230,88530-Sep-09
Adams Street Partners, LLC869,1251.86$5,814,44630-Sep-09
PALO ALTO INVESTORS, LLC812,8561.74$5,438,00630-Sep-09
Barclays Global Investors UK Holdings Ltd782,9221.68$5,237,74830-Sep-09

TOP MUTUAL FUND HOLDERS
HolderShares% OutValue*Reported
MFS VARIABLE INSURANCE TRUST-MFS NEW DISCOVERY SERIES1,115,6962.39$7,464,00630-Sep-09
MFS NEW DISCOVERY FUND862,9811.85$5,333,22231-Aug-09
DWS Global Opportunities Fd410,700.88$2,747,58330-Sep-09
VANGUARD TOTAL STOCK MARKET INDEX FUND405,250.87$2,390,97530-Jun-09
MFS Var Ins Tr II-MFS New Discovery Port344,390.74$2,303,96930-Sep-09
DFA U.S. MICRO CAP SERIES336,545.72$1,864,45931-Jul-09
ISHARES RUSSELL 2000 INDEX FD294,362.63$1,992,83030-Nov-09
ISHARES RUSSELL 2000 GROWTH INDEX FD162,604.35$1,100,82930-Nov-09
MFS CORE EQUITY FUND157,410.34$972,79331-Aug-09
LORD ABBETT SECURITIES TRUST-MICRO-CAP GROWTH FUND150,300.32$832,66231-Jul-09

View Transactions for Insiders & Institutional Holders
* Value shown is computed using the security's price on the report date given.


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