0001095449-17-000083.txt : 20170808 0001095449-17-000083.hdr.sgml : 20170808 20170807183014 ACCESSION NUMBER: 0001095449-17-000083 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20170630 FILED AS OF DATE: 20170808 DATE AS OF CHANGE: 20170807 EFFECTIVENESS DATE: 20170808 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: 171012883 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 06-30-2017 06-30-2017 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 Carsbad CA 07-10-2017 0 38 169081 false INFORMATION TABLE 2 2017-06_table.xml 13F HOLDINGS REPORT FOR JUNE 30, 2017 ALKERMES PLC Equity g01767105 1739 30000 SH SOLE 30000 0 0 ALLSCRIPTS HEALTHCARE SOLUTI Equity 01988P108 15950 1250000 SH SOLE 1250000 0 0 BROOKDALE SENIOR LIVING INC US 07/21/17 C15 Listed Option 112463904 68 1000 SH Call SOLE 1000 0 0 BROOKDALE SENIOR LIVING INC US 07/21/17 C16 Listed Option 112463904 38 1000 SH Call SOLE 1000 0 0 BROOKDALE SENIOR LIVING INC Equity 112463104 4781 325000 SH SOLE 325000 0 0 BOSTON SCIENTIFIC CORP US 07/21/17 P28 Listed Option 101137957 55 886 SH Put SOLE 886 0 0 CARDIOME PHARMA CORP Equity 14159U301 8136 1800000 SH SOLE 1800000 0 0 CORIUM INTERNATIONAL INC Equity 21887L107 7274 975000 SH SOLE 975000 0 0 DENTSPLY SIRONA INC Equity 24906P109 4993 77000 SH SOLE 77000 0 0 QUEST DIAGNOSTICS INC US 07/21/17 P110 Listed Option 74834L950 39 376 SH Put SOLE 376 0 0 GILEAD SCIENCES INC Equity 375558103 9555 135000 SH SOLE 135000 0 0 HCA HEALTHCARE INC Equity 40412C101 4360 50000 SH SOLE 50000 0 0 ISHARES TR RUSSELL 2000 ETF US 09/15/17 P140 Listed Option 464287955 690 2000 SH Put SOLE 2000 0 0 JAZZ PHARMACEUTICALS PLC Equity G50871105 8553 55000 SH SOLE 55000 0 0 COCA COLA CO US 08/18/17 P46 Listed Option 191216950 134 1000 SH Put SOLE 1000 0 0 LABORATORY CRP OF AMER HLDGS Equity 50540R409 10482 68000 SH SOLE 68000 0 0 LANTHEUS HOLDINGS INC Equity 516544103 6795 385000 SH SOLE 385000 0 0 MEDTRONIC PLC Equity 585055106 3994 45000 SH SOLE 45000 0 0 NEKTAR THERAPEUTICS Equity 640268108 11535 590000 SH SOLE 590000 0 0 NOVOCURE LTD Equity G6674U908 15657 905000 SH SOLE 905000 0 0 NXSTAGE MEDICAL INC Equity 67072V103 3196 127500 SH SOLE 127500 0 0 OBALON THERAPEUTICS INC Equity 67424L100 5233 528066 SH SOLE 528066 0 0 OPHTHOTECH CORP Equity 683745103 1600 625000 SH SOLE 625000 0 0 PACIRA PHARMACEUTICALS INC Equity 695127100 10256 215000 SH SOLE 215000 0 0 PATTERSON COMPANIES INC US 07/21/17 P44 Listed Option 703395953 4 300 SH Put SOLE 300 0 0 R1 RCM INC Equity 749397105 938 250000 SH SOLE 250000 0 0 SERVICE CORP INTERNATIONAL Equity 817565104 1840 55000 SH SOLE 55000 0 0 SPECTRANETICS CORP Equity 84760C107 10176 265000 SH SOLE 265000 0 0 SPECTRANETICS CORP US 08/18/17 C40 Listed Option 84760C907 23 3000 SH Call SOLE 3000 0 0 SPECTRANETICS CORP US 10/20/17 C39 Listed Option 84760C907 57 3827 SH Call SOLE 3827 0 0 SPECTRANETICS CORP US 10/20/17 C40 Listed Option 84760C907 9 925 SH Call SOLE 925 0 0 SPDR S&P 500 ETF TR US 07/21/17 P235 Listed Option 78462F953 171 3000 SH Put SOLE 3000 0 0 SPDR S&P 500 ETF TR US 08/18/17 P235 Listed Option 78462F953 155 1000 SH Put SOLE 1000 0 0 STERICYCLE INC Equity 858912108 4579 60000 SH SOLE 60000 0 0 STERIS PLC Equity 859152100 6928 85000 SH SOLE 85000 0 0 STREAMLINE HEALTH SOLUTIONS Equity 86323X106 1218 1138000 SH SOLE 1138000 0 0 TIVITY HEALTH INC Equity 88870R102 6185 155215 SH SOLE 155215 0 0 WALGREENS BOOTS ALLIANCE INC Equity 931427108 3916 50000 SH SOLE 50000 0 0