CASTLEARK MANAGEMENT LLC - NXSTAGE MEDICAL INC ownership

NXSTAGE MEDICAL INC's ticker is NXTM and the CUSIP is 67072V103. A total of 111 filers reported holding NXSTAGE MEDICAL INC in Q4 2013. The put-call ratio across all filers is 0.01 and the average weighting 0.2%.

Quarter-by-quarter ownership
CASTLEARK MANAGEMENT LLC ownership history of NXSTAGE MEDICAL INC
ValueSharesWeighting
Q4 2015$8,839,000
-11.2%
403,440
-29.9%
0.27%
+10.8%
Q1 2015$9,956,000
-1.5%
575,491
+2.1%
0.24%
-7.7%
Q4 2014$10,107,000
+115.8%
563,691
+72.9%
0.26%
+101.6%
Q2 2014$4,684,000
-31.1%
325,950
-37.1%
0.13%
-32.8%
Q3 2013$6,802,000
+58.7%
518,036
+72.6%
0.19%
+35.2%
Q2 2013$4,286,000300,1500.14%
Other shareholders
NXSTAGE MEDICAL INC shareholders Q4 2013
NameSharesValueWeighting ↓
Burren Capital Advisors Ltd 29,200$806,0009.11%
ALPINE ASSOCIATES MANAGEMENT INC. 7,982,916$220,326,0003.72%
DAFNA Capital Management LLC 216,119$5,965,0003.70%
Versor Investments LP 406,502$11,219,0003.67%
Trellus Management Company, LLC 80,000$2,204,0003.02%
Pennant Capital Management, LLC 1,622,066$44,769,0002.75%
KOPP INVESTMENT ADVISORS LLC 106,586$2,942,0002.70%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 1,579,285$43,588,0001.96%
Cheyne Capital Management (UK) LLP 190,000$5,243,0001.89%
First Light Asset Management, LLC 183,592$5,067,0001.60%
View complete list of NXSTAGE MEDICAL INC shareholders