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NXSTAGE MED INC COM
NXSTAGE MED INC COM. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 119 Institutional holders with a total value of $1,004,398,087.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 6,214,200 111,421,000 11.09%
2 DEERFIELD MANAGEMENT COMPANY, L.P. 4,811,494 86,270,000 8.59%
3 GILDER GAGNON HOWE & CO LLC 4,034,891 72,346,000 7.20%
4 ORACLE INVESTMENT MANAGEMENT INC 3,754,343 67,315,000 6.70%
5 VANGUARD GROUP INC 3,435,249 61,594,000 6.13%
6 LORD, ABBETT & CO. LLC 2,970,646 53,264,000 5.30%
7 BLAIR WILLIAM & CO/IL 2,650,064 47,516,000 4.73%
8 Cortina Asset Management, LLC 2,381,692 42,704,000 4.25%
9 RS INVESTMENT MANAGEMENT CO LLC 2,301,042 41,258,000 4.11%
10 BlackRock Fund Advisors 1,728,907 30,999,000 3.09%
11 BlackRock Institutional Trust Company, N.A. 1,646,027 29,513,000 2.94%
12 BROADVIEW ADVISORS LLC 1,637,425 29,359,000 2.92%
13 BANK OF MONTREAL /CAN/ 1,128,525 20,234,000 2.01%
14 Tamarack Capital Management, LLC 1,100,000 19,723,000 1.96%
15 STATE STREET CORP 1,005,826 18,036,000 1.80%
16 MILLENNIUM MANAGEMENT LLC 998,681 17,906,000 1.78%
17 SECTORAL ASSET MANAGEMENT INC 807,012 14,470,000 1.44%
18 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 793,409 14,225,823 1.42%
19 WELLS FARGO & COMPANY/MN 737,832 13,229,000 1.32%
20 NORTHERN TRUST CORP 708,720 12,708,000 1.27%
21 TIVERTON ASSET MANAGEMENT LLC 700,000 12,555,000 1.25%
22 OppenheimerFunds, Inc. 668,016 11,978,000 1.19%
23 ALTRINSIC GLOBAL ADVISORS LLC 666,300 11,947,000 1.19%
24 CASTLEARK MANAGEMENT LLC 563,691 10,107,000 1.01%
25 Point72 Asset Management, L.P. 495,200 8,879,000 0.88%
26 NEXT CENTURY GROWTH INVESTORS LLC 428,873 7,689,000 0.77%
27 DAFNA Capital Management LLC 384,154 6,888,000 0.69%
28 First Light Asset Management, LLC 373,164 6,691,000 0.67%
29 Nuveen Asset Management, LLC 367,675 6,592,000 0.66%
30 CHARTWELL INVESTMENT PARTNERS, LLC 363,820 6,523,000 0.65%
31 WHV Investments, Inc. 334,580 5,999,000 0.60%
32 GEODE CAPITAL MANAGEMENT, LLC 331,424 5,941,000 0.59%
33 Bank of New York Mellon Corp 315,727 5,661,000 0.56%
34 Weiss Multi-Strategy Advisers LLC 300,000 5,379,000 0.54%
35 Calamos Advisors LLC 230,332 4,130,000 0.41%
36 TIAA CREF INVESTMENT MANAGEMENT LLC 219,521 3,936,000 0.39%
37 MANUFACTURERS LIFE INSURANCE COMPANY, THE 199,853 3,583,000 0.36%
38 Employees Retirement System of Texas 198,000 3,550,000 0.35%
39 DEUTSCHE BANK AG\ 176,339 3,161,000 0.31%
40 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 175,766 3,152,000 0.31%
41 Skylands Capital, LLC 170,500 3,057,000 0.30%
42 BlackRock Investment Management, LLC 166,630 2,988,000 0.30%
43 MANAGED ACCOUNT ADVISORS LLC 165,606 2,969,000 0.30%
44 NORGES BANK 153,904 2,760,000 0.27%
45 CONTINENTAL ADVISORS LLC 138,064 2,475,000 0.25%
46 RENAISSANCE TECHNOLOGIES LLC 126,990 2,277,000 0.23%
47 PURA VIDA INVESTMENTS, LLC 120,000 2,152,000 0.21%
48 D. E. Shaw & Co., Inc. 115,217 2,066,000 0.21%
49 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 113,899 2,042,000 0.20%
50 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 106,800 2,017,000 0.20%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.