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Institutional Investment Manager
Tamarack Capital Management, LLC
Tamarack Capital Management, LLC (CIK: 0001537996) incorporated in Delaware, located at 5050 Avenida Encinas, Carlsbad, CA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q3)
Portfolio Summary: 32 holdings with a total value of $840,102,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SPDR S&P 500 ETF TR 700,000 134,141,000 15.97% Call
2 ISHARES TR 762,000 94,137,000 11.21% Call
3 ISHARES TR 600,000 65,520,000 7.80% Put
4 PATTERSON COS INC 1,225,000 52,981,000 6.31%
5 ENDOLOGIX INC 4,050,000 49,653,000 5.91%
6 MEDTRONIC PLC 700,000 46,858,000 5.58%
7 QUEST DIAGNOSTICS INC 700,000 43,029,000 5.12%
8 GREATBATCH INC 700,000 39,494,000 4.70%
9 BECTON DICKINSON & CO 275,000 36,482,000 4.34%
10 NXSTAGE MED INC COM 2,000,000 31,540,000 3.75%
11 ALLSCRIPTS HEALTHCARE 2,150,000 26,660,000 3.17%
12 IMPRIVATA INC 1,425,000 25,322,000 3.01%
13 ALKERMES PLC SHS 365,000 21,415,000 2.55%
14 MERCK & CO INC 400,000 19,756,000 2.35% Call
15 ATRICURE INC 825,000 18,076,000 2.15%
16 LUMINEX CORP DEL COM 950,000 16,065,000 1.91%
17 BIO RAD LABS INC CL A 110,000 14,774,000 1.76%
18 PERRIGO CO PLC 80,000 12,582,000 1.50% Call
19 CORIUM INTERNATIONAL INC 1,325,000 12,389,000 1.47%
20 TEVA PHARMACEUTICAL INDS LTD 200,000 11,292,000 1.34% Call
21 RTI SURGICAL HOLDINGS INC COM 1,950,000 11,076,000 1.32%
22 AMARIN CORP PLC 5,700,000 11,001,000 1.31%
23 AMGEN INC 75,000 10,374,000 1.23%
24 SPECTRANETICS CORP 785,000 9,255,000 1.10%
25 PERRIGO CO PLC 50,000 7,864,000 0.94%
26 Oxford Immunotec Global PLC 375,000 5,063,000 0.60%
27 CERUS CORP 900,000 4,086,000 0.49%
28 LANTHEUS HLDGS INC COM 615,000 2,645,000 0.31%
29 STREAMLINE HEALTH SOLUTIONS COM 1,138,000 2,606,000 0.31%
30 HERON THERAPEUTICS INC 75,000 1,830,000 0.22%
31 NUVASIVE INC COM 25,000 1,206,000 0.14%
32 GLOBUS MED INC 45,000 930,000 0.11%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001095449-15-000149, filed 2015.11.10).

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.