0001095449-19-000029.txt : 20190513 0001095449-19-000029.hdr.sgml : 20190513 20190513152933 ACCESSION NUMBER: 0001095449-19-000029 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20190331 FILED AS OF DATE: 20190513 DATE AS OF CHANGE: 20190513 EFFECTIVENESS DATE: 20190513 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: 19818185 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 03-31-2019 03-31-2019 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 04-12-2019 0 22 248543 false INFORMATION TABLE 2 table2019-03-Corrected.xml 13F HOLDINGS REPORT FOR MARCH 31, 2019 ALKERMES PLC Equity G01767105 5109 140000 SH SOLE 140000 0 0 ATRICURE INC Equity 04963C209 11386 425000 SH SOLE 425000 0 0 BIO-RAD LABORATORIES-A Equity 090572207 19869 65000 SH SOLE 65000 0 0 CANTEL MEDICAL CORP Equity 138098108 2007 30000 SH SOLE 30000 0 0 CORREVIO PHARMA CORP Equity 22026V105 7584 2400000 SH SOLE 2400000 0 0 HOLOGIC INC Equity 436440101 10890 225000 SH SOLE 225000 0 0 LANTHEUS HOLDINGS INC Equity 516544103 23256 950000 SH SOLE 950000 0 0 MDCO US 04/18/19 P22 Put 584688955 34 1714 SH Put SOLE 1714 0 0 ALLSCRIPTS HEALTHCARE SOLUTI Equity 01988P108 33867 3550000 SH SOLE 3550000 0 0 MEDTRONIC PLC Equity 585055106 31878 350000 SH SOLE 350000 0 0 NEVRO CORP Equity 64157F103 10002 160000 SH SOLE 160000 0 0 OBALON THERAPEUTICS INC Equity 67424L100 2944 2044440 SH SOLE 2044440 0 0 OPHTHOTECH CORP Equity 683745103 4230 3000000 SH SOLE 3000000 0 0 PACIRA PHARMACEUTICALS INC Equity 695127100 12179 320000 SH SOLE 320000 0 0 PORTOLA PHARMACEUTICALS INC Equity 737010108 25158 725000 SH SOLE 725000 0 0 RIGEL PHARMACEUTICALS INC Equity 766559603 13621 5300000 SH SOLE 5300000 0 0 SERVICE CORP INTERNATIONAL Equity 817565104 4818 120000 SH SOLE 120000 0 0 SPY US 04/18/19 P275 Put 78462F953 420 4000 SH Put SOLE 4000 0 0 STERICYCLE INC Equity 858912108 27754 510000 SH SOLE 510000 0 0 STREAMLINE HEALTH SOLUTIONS Equity 86323X106 2048 1950000 SH SOLE 1950000 0 0 THERMO FISHER SCIENTIFIC INC Equity 883556102 2737 10000 SH SOLE 10000 0 0 VITAMIN SHOPPE INC Equity 92849E101 93 13158 SH SOLE 13158 0 0