0001095449-18-000014.txt : 20180214 0001095449-18-000014.hdr.sgml : 20180214 20180213185212 ACCESSION NUMBER: 0001095449-18-000014 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180214 DATE AS OF CHANGE: 20180213 EFFECTIVENESS DATE: 20180214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Tamarack Advisers, LP CENTRAL INDEX KEY: 0001661462 IRS NUMBER: 474492240 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17119 FILM NUMBER: 18605954 BUSINESS ADDRESS: STREET 1: 5050 AVENIDA ENCINAS STREET 2: SUITE 360 CITY: CARLSBAD STATE: CA ZIP: 92008 BUSINESS PHONE: (760) 429-7254 MAIL ADDRESS: STREET 1: 5050 AVENIDA ENCINAS STREET 2: SUITE 360 CITY: CARLSBAD STATE: CA ZIP: 92008 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001661462 XXXXXXXX 12-31-2017 12-31-2017 Tamarack Advisers, LP

5050 AVENIDA ENCINAS SUITE 360 CARLSBAD CA 92008

13F HOLDINGS REPORT 028-17119 N Andrew H. Fesler (760) 429-7254 Andrew H. Fesler Carlsbad CA 02-02-2018 0 32 183205 false INFORMATION TABLE 2 2017-12_table_r.xml 13F HOLDINGS REPORT FOR DECEMBER 31, 2017 ADAMAS PHARMACEUTICALS INC Com 00548A106 3138 92600 SH SOLE 92600 0 0 ALKERMES PLC Com g01767105 3831 70000 SH SOLE 70000 0 0 ALLSCRIPTS HEALTHCARE SOLUTI Com 01988P108 20006 1375000 SH SOLE 1375000 0 0 ATRICURE INC Com 04963C209 3192 175000 SH SOLE 175000 0 0 BSX US 01/19/18 P27 Com 101137107 328 1500 SH Put SOLE 1500 0 0 CARDIOME PHARMA CORP Com 14159U301 2906 1875000 SH SOLE 1875000 0 0 CORIUM INTERNATIONAL INC Com 21887L107 9706 1010000 SH SOLE 1010000 0 0 GILEAD SCIENCES INC Com 375558103 9313 130000 SH SOLE 130000 0 0 HCA US 01/19/18 C80 Com 40412C101 845 1000 SH Call SOLE 1000 0 0 IWM US 01/19/18 P146 Com 464287655 96 2000 SH Put SOLE 2000 0 0 LABORATORY CRP OF AMER HLDGS Com 50540R409 12761 80000 SH SOLE 80000 0 0 LANTHEUS HOLDINGS INC Com 516544103 3076 150437 SH SOLE 150437 0 0 MCKESSON CORP Com 58155Q103 3899 25000 SH SOLE 25000 0 0 MEDTRONIC PLC Com 585055106 12113 150000 SH SOLE 150000 0 0 NEKTAR THERAPEUTICS Com 640268108 6271 105000 SH SOLE 105000 0 0 NOVOCURE LTD Com G6674U908 21311 1055000 SH SOLE 1055000 0 0 NUVASIVE INC Com 670704105 12303 210340 SH SOLE 210340 0 0 NXSTAGE MEDICAL INC Com 67072V103 6663 275000 SH SOLE 275000 0 0 OBALON THERAPEUTICS INC Com 67424L100 3993 604036 SH SOLE 604036 0 0 OPHTHOTECH CORP Com 683745103 2340 750000 SH SOLE 750000 0 0 PACIRA PHARMACEUTICALS INC Com 695127100 14380 315000 SH SOLE 315000 0 0 QUEST DIAGNOSTICS INC Com 74834L100 4925 50000 SH SOLE 50000 0 0 QUIDEL CORP Com 74838J101 11705 270000 SH SOLE 270000 0 0 R1 RCM INC Com 749397105 1764 400000 SH SOLE 400000 0 0 SERVICE CORP INTERNATIONAL Com 817565104 3732 100000 SH SOLE 100000 0 0 SHPG US 01/19/18 C185 Com 82481R106 5 394 SH Call SOLE 394 0 0 SPY US 01/19/18 P255 Com 78462F103 168 4000 SH Put SOLE 4000 0 0 STERICYCLE INC Com 858912108 4191 61641 SH SOLE 61641 0 0 STERIS PLC Com G84720104 2187 25000 SH SOLE 25000 0 0 STREAMLINE HEALTH SOLUTIONS Com 86323X106 1775 1050000 SH SOLE 1050000 0 0 TMO US 01/19/18 P195 Com 883556102 54 100 SH Put SOLE 100 0 0 XLV US 01/19/18 P84 Com 81369Y209 230 2000 SH Put SOLE 2000 0 0