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Institutional Investment Manager
TAMARACK ADVISERS, LP
TAMARACK ADVISERS, LP (CIK: 0001661462). Institutional holdings reported to the SEC.

Institutional Holdings (2015Q4)
Portfolio Summary: 31 holdings with a total value of $759,795,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SPDR S&P 500 ETF TR 600,000 122,322,000 16.10% Put
2 ISHARES TR 788,300 95,053,000 12.51% Call
3 PATTERSON COS INC 1,050,000 47,471,000 6.25%
4 QUEST DIAGNOSTICS INC 650,000 46,241,000 6.09%
5 ENDOLOGIX INC 4,475,000 44,303,000 5.83%
6 NXSTAGE MED INC COM 1,925,000 42,177,000 5.55%
7 MEDTRONIC PLC 500,000 38,460,000 5.06%
8 GREATBATCH INC 675,000 35,438,000 4.66%
9 ALLSCRIPTS HEALTHCARE 1,850,000 28,453,000 3.74%
10 ALKERMES PLC SHS 300,000 23,814,000 3.13%
11 SPECTRANETICS CORP 1,350,000 20,331,000 2.68%
12 LUMINEX CORP DEL COM 925,000 19,786,000 2.60%
13 IMPRIVATA INC 1,746,000 19,730,000 2.60%
14 BECTON DICKINSON & CO 125,000 19,261,000 2.54%
15 BIO RAD LABS INC CL A 125,000 17,333,000 2.28%
16 PERRIGO CO PLC 118,000 17,075,000 2.25%
17 STERIS PLC SHS USD 209,169 15,759,000 2.07%
18 ATRICURE INC 700,000 15,708,000 2.07%
19 ASTRAZENECA PLC 400,000 13,580,000 1.79%
20 CORIUM INTERNATIONAL INC 1,385,000 11,246,000 1.48%
21 AMARIN CORP PLC 5,500,000 10,395,000 1.37%
22 ALERE INC 225,000 8,795,000 1.16%
23 EXPRESS SCRIPTS HLDG CO 100,000 8,741,000 1.15%
24 BECTON DICKINSON & CO 50,000 7,705,000 1.01% Call
25 SAGENT PHARMACEUTICALS INC 450,000 7,160,000 0.94%
26 TEVA PHARMACEUTICAL INDS LTD 100,000 6,564,000 0.86% Call
27 Intersect ENT Inc 249,296 5,609,000 0.74%
28 RTI SURGICAL HOLDINGS INC COM 1,250,000 4,963,000 0.65%
29 VARIAN MED SYS I 35,000 2,828,000 0.37% Call
30 GLAUKOS CORP 76,502 1,889,000 0.25%
31 STREAMLINE HEALTH SOLUTIONS COM 1,138,000 1,605,000 0.21%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001095449-16-000188, filed 2016.02.08).

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.