The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ACCELERON PHARMA INC COM 00434H108 67,977 1,401,000 SH   OTR   1,401,000 0 0
AETNA INC NEW COM 00817Y108 1,245,965 6,790,000 SH   OTR   6,790,000 0 0
AKORN INC COM 009728106 7,300 440,000 SH   OTR   440,000 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 40,873 415,000 SH   OTR   415,000 0 0
ALPHABET INC CAP STK CL C 02079K107 394,745 353,825 SH   OTR   353,825 0 0
ALTABA INC COM 021346101 1,386,231 18,935,000 SH   OTR   18,935,000 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 13,859 4,485,000 SH   OTR   4,485,000 0 0
AMICUS THERAPEUTICS INC COM 03152W109 57,091 3,655,000 SH   OTR   3,655,000 0 0
ANDEAVOR COM 03349M105 80,020 610,000 SH   OTR   610,000 0 0
ANHEUSER BUSCH INBEV SA/NV SPONSORED ADR 03524A108 36,126 358,533 SH   OTR   358,533 0 0
ANTHEM INC COM 036752103 246,361 1,035,000 SH   OTR   1,035,000 0 0
APTINYX INC COM 03836N103 14,425 596,800 SH   OTR   596,800 0 0
ARRAY BIOPHARMA INC COM 04269X105 78,027 4,650,000 SH   OTR   4,650,000 0 0
ASCENDIS PHARMA A S SPONSORED ADR 04351P101 96,939 1,457,297 SH   OTR   1,457,297 0 0
ASTRAZENECA PLC SPONSORED ADR 046353108 135,174 3,850,000 SH   OTR   3,850,000 0 0
AVISTA CORP COM 05379B107 58,543 1,111,723 SH   OTR   1,111,723 0 0
AVROBIO INC COM 05455M100 10,093 353,400 SH   OTR   353,400 0 0
BELLICUM PHARMACEUTICALS INC COM 079481107 14,760 2,000,000 SH   OTR   2,000,000 0 0
BEMIS INC COM 081437105 18,678 442,500 SH   OTR   442,500 0 0
BIOGEN INC COM 09062X103 72,270 249,000 SH   OTR   249,000 0 0
CAVIUM INC COM 14964U108 47,143 545,000 SH   OTR   545,000 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 257,127 876,938 SH   OTR   876,938 0 0
CHEMOCENTRYX INC COM 16383L106 15,146 1,150,000 SH   OTR   1,150,000 0 0
CIGNA CORPORATION COM 125509109 114,036 671,000 SH   OTR   671,000 0 0
CITRIX SYS INC COM 177376100 167,175 1,594,570 SH   OTR   1,594,570 0 0
CODEXIS INC COM 192005106 16,200 1,125,000 SH   OTR   1,125,000 0 0
COHERUS BIOSCIENCES INC COM 19249H103 11,830 845,000 SH   OTR   845,000 0 0
COMSTOCK RES INC NOTE 7.750% 4/0 205768AM6 10,155 10,303,206 PRN   OTR   10,303,206 0 0
CRISPR THERAPEUTICS AG NAMEN AKT H17182108 50,575 860,700 SH   OTR   860,700 0 0
DELL TECHNOLOGIES INC COM CL V 24703L103 513,739 6,074,000 SH   OTR   6,074,000 0 0
DR PEPPER SNAPPLE GROUP INC COM 26138E109 595,970 4,885,000 SH   OTR   4,885,000 0 0
DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 21,960 1,440,000 SH   OTR   1,440,000 0 0
ENANTA PHARMACEUTICALS INC COM 29251M106 124,593 1,075,000 SH   OTR   1,075,000 0 0
ENVISION HEALTHCARE CORP COM 29414D100 47,971 1,090,000 SH   OTR   1,090,000 0 0
EQUIFAX INC COM 294429105 104,962 838,959 SH   OTR   838,959 0 0
EXPRESS SCRIPTS HLDG CO COM 30219G108 598,764 7,755,000 SH   OTR   7,755,000 0 0
FACEBOOK INC CL A 30303M102 410,526 2,112,630 SH   OTR   2,112,630 0 0
FIBROGEN INC COM 31572Q808 107,516 1,717,500 SH   OTR   1,717,500 0 0
FIDELITY NATL INFORMATION SV COM 31620M106 209,961 1,980,205 SH   OTR   1,980,205 0 0
GENERAL DYNAMICS CORP COM 369550108 316,471 1,697,715 SH   OTR   1,697,715 0 0
GGP INC COM 36174X101 103,887 5,085,000 SH   OTR   5,085,000 0 0
GILEAD SCIENCES INC COM 375558103 206,853 2,920,000 SH   OTR   2,920,000 0 0
GLOBAL BLOOD THERAPEUTICS IN COM 37890U108 53,562 1,185,000 SH   OTR   1,185,000 0 0
GRIFOLS S A SP ADR REP B NVT 398438408 11,853 551,304 SH   OTR 1 551,304 0 0
HRG GROUP INC COM 40434J100 29,976 2,290,000 SH   OTR   2,290,000 0 0
IHS MARKIT LTD SHS G47567105 261,766 5,073,965 SH   OTR   5,073,965 0 0
IMMUNOMEDICS INC COM 452907108 9,468 400,000 SH   OTR   400,000 0 0
INTELLIA THERAPEUTICS INC COM 45826J105 22,982 840,000 SH   OTR   840,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 56,640 4,425,000 SH   OTR   4,425,000 0 0
IQVIA HLDGS INC COM 46266C105 408,291 4,090,274 SH   OTR   4,090,274 0 0
KEZAR LIFE SCIENCES INC COM 49372L100 1,326 76,673 SH   OTR   76,673 0 0
KINIKSA PHARMACEUTICALS LTD COM CL A G5269C101 1,988 114,589 SH   OTR   114,589 0 0
LIBERTY GLOBAL PLC SHS CL A G5480U104 146,719 5,327,493 SH   OTR   5,327,493 0 0
LIBERTY GLOBAL PLC SHS CL C G5480U120 146,958 5,522,656 SH   OTR   5,522,656 0 0
LOGMEIN INC COM 54142L109 214,148 2,074,072 SH   OTR   2,074,072 0 0
MICROSOFT CORP COM 594918104 248,769 2,522,756 SH   OTR   2,522,756 0 0
MIRATI THERAPEUTICS INC COM 60468T105 36,655 743,500 SH   OTR   743,500 0 0
MORPHOSYS AG SPONSORED ADS 617760202 2,173 71,631 SH   OTR   71,631 0 0
MYOKARDIA INC COM 62857M105 73,545 1,481,278 SH   OTR   1,481,278 0 0
NOVOCURE LTD ORD SHS G6674U108 49,767 1,590,000 SH   OTR   1,590,000 0 0
NXP SEMICONDUCTORS N V COM N6596X109 292,166 2,673,802 SH   OTR   2,673,802 0 0
PFENEX INC COM 717071104 3,246 600,000 SH   OTR   600,000 0 0
PINNACLE FOODS INC DEL COM 72348P104 9,434 145,000 SH   OTR   145,000 0 0
PLAYA HOTELS & RESORTS NV SHS N70544106 330,555 30,606,930 SH   OTR   30,606,930 0 0
PROGENICS PHARMACEUTICALS IN COM 743187106 21,315 2,651,100 SH   OTR   2,651,100 0 0
PROTAGONIST THERAPEUTICS INC COM 74366E102 6,117 910,229 SH   OTR   910,229 0 0
RADIUS HEALTH INC COM NEW 750469207 120,423 4,086,300 SH   OTR   4,086,300 0 0
ROCKWELL COLLINS INC COM 774341101 576,430 4,280,000 SH   OTR   4,280,000 0 0
SAGE THERAPEUTICS INC COM 78667J108 97,831 625,000 SH   OTR   625,000 0 0
SANOFI RIGHT 12/31/2020 80105N113 3,414 6,827,805 SH   OTR   6,827,805 0 0
SAVARA INC COM 805111101 25,187 2,225,000 SH   OTR   2,225,000 0 0
SHIRE PLC SPONSORED ADR 82481R106 11,740 69,547 SH   OTR   69,547 0 0
SINA CORP ORD G81477104 53,778 635,000 SH   OTR   635,000 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 2,613,783 9,635,000 SH Put OTR   9,635,000 0 0
SPECTRUM PHARMACEUTICALS INC COM 84763A108 1,048 50,000 SH   OTR   50,000 0 0
SURFACE ONCOLOGY INC COM 86877M209 1,631 100,000 SH   OTR   100,000 0 0
SUTHERLAND ASSET MGMT CORP M COM 86933G105 35,884 2,208,239 SH   OTR   2,208,239 0 0
SYNLOGIC INC COM 87166L100 6,734 685,067 SH   OTR   685,067 0 0
TRANSLATE BIO INC COM 89374L104 5,060 400,000 SH   OTR   400,000 0 0
TRANSUNION COM 89400J107 299,916 4,186,436 SH   OTR   4,186,436 0 0
TWENTY FIRST CENTY FOX INC CL A 90130A101 61,367 1,235,000 SH   OTR   1,235,000 0 0
TWENTY FIRST CENTY FOX INC CL B 90130A200 174,293 3,537,500 SH   OTR   3,537,500 0 0
TYME TECHNOLOGIES INC COM 90238J103 2,997 948,390 SH   OTR   948,390 0 0
VEON LTD SPONSORED ADR 91822M106 2,380 1,000,000 SH   OTR 1 1,000,000 0 0
VERISK ANALYTICS INC COM 92345Y106 196,088 1,821,702 SH   OTR   1,821,702 0 0
VISA INC COM CL A 92826C839 368,399 2,781,421 SH   OTR   2,781,421 0 0
VOYA FINL INC COM 929089100 8,695 185,000 SH   OTR   185,000 0 0
VOYAGER THERAPEUTICS INC COM 92915B106 15,010 768,157 SH   OTR   768,157 0 0
WABTEC CORP COM 929740108 422,217 4,282,986 SH   OTR   4,282,986 0 0
XERIS PHARMACEUTICALS INC COM 98422L107 3,027 159,500 SH   OTR   159,500 0 0
XL GROUP LTD COM G98294104 406,896 7,272,500 SH   OTR   7,272,500 0 0
ZAFGEN INC COM 98885E103 12,957 1,266,539 SH   OTR   1,266,539 0 0
ZEALAND PHARMA A S SPONSORED ADR 98920Y304 11,412 900,000 SH   OTR   900,000 0 0
ZOGENIX INC COM NEW 98978L204 74,941 1,695,500 SH   OTR   1,695,500 0 0
ZYMEWORKS INC COM 98985W102 11,159 755,000 SH   OTR   755,000 0 0