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
3M CO COM 88579Y101 60,478 275,500 SH Put DFND 1 275,500 0 0
ADECOAGRO S A COM L00849106 2,256 300,000 SH   DFND 1 300,000 0 0
ADIENT PLC ORD SHS G0084W101 40,030 669,850 SH   DFND 1 669,850 0 0
ADMA BIOLOGICS INC COM 000899104 3,703 805,000 SH   DFND 1 805,000 0 0
ALDEYRA THERAPEUTICS INC COM 01438T106 7,500 1,000,000 SH   DFND 1 1,000,000 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 22,629 190,000 SH   DFND 1 190,000 0 0
APPLIED GENETIC TECHNOL CORP COM 03820J100 1,155 300,000 SH   DFND 1 300,000 0 0
ARRAY BIOPHARMA INC COM 04269X105 7,344 450,000 SH   DFND 1 450,000 0 0
ATLANTIC ACQUISITION CORP RIGHT 02/08/2019 048206304 133 270,000 SH   DFND 1 270,000 0 0
AVEO PHARMACEUTICALS INC COM 053588109 7,250 2,500,000 SH   DFND 1 2,500,000 0 0
BIG ROCK PARTNERS ACQUISI CO RIGHT 12/01/2022 089482129 69 165,000 SH   DFND 1 165,000 0 0
BIG ROCK PARTNERS ACQUISI CO *W EXP 12/01/202 089482111 37 82,500 SH   DFND 1 82,500 0 0
BISON CAP ACQUISITION CORP RIGHT 03/20/2019 G1142P138 50 100,000 SH   DFND 1 100,000 0 0
BISON CAP ACQUISITION CORP *W EXP 06/20/202 G1142P112 20 50,000 SH   DFND 1 50,000 0 0
BLACK RIDGE ACQUISITION CORP RIGHT 07/10/2019 09216T123 60 200,000 SH   DFND 1 200,000 0 0
BLACK RIDGE ACQUISITION CORP *W EXP 07/10/202 09216T115 280 700,000 SH   DFND 1 700,000 0 0
BLACKSTONE GROUP L P COM UNIT LTD 09253U108 5,432 170,000 SH   DFND 1 170,000 0 0
CARVANA CO CL A 146869102 29,984 1,307,640 SH   DFND 1 1,307,640 0 0
CARVANA CO CL A 146869102 2,149 93,700 SH Call DFND 1 93,700 0 0
CATERPILLAR INC DEL COM 149123101 11,054 75,000 SH Put DFND 1 75,000 0 0
CISION LTD *W EXP 06/22/202 G1992S117 3,580 1,530,000 SH   DFND 1 1,530,000 0 0
CM SEVEN STAR ACQUISITION CO SHS G2345N102 1,705 175,000 SH   DFND 1 175,000 0 0
CM SEVEN STAR ACQUISITION CO RIGHT 08/21/2022 G2345N136 56 175,000 SH   DFND 1 175,000 0 0
CM SEVEN STAR ACQUISITION CO *W EXP 08/21/202 G2345N110 31 87,500 SH   DFND 1 87,500 0 0
COCA COLA CO COM 191216100 30,401 700,000 SH Put DFND 1 700,000 0 0
CONSTELLATION ALPHA CAP CORP SHS G2379F108 1,777 180,000 SH   DFND 1 180,000 0 0
CONSTELLATION ALPHA CAP CORP RIGHT 99/99/9999 G2379F132 65 180,000 SH   DFND 1 180,000 0 0
CONSTELLATION ALPHA CAP CORP *W EXP 03/23/202 G2379F116 99 380,000 SH   DFND 1 380,000 0 0
CONTRAFECT CORP COM 212326102 4,063 2,500,000 SH   DFND 1 2,500,000 0 0
CONVERGEONE HLDGS INC *W EXP 04/12/202 212481113 480 401,806 SH   DFND 1 401,806 0 0
CRESUD S A C I F Y A SPONSORED ADR 226406106 15,954 791,750 SH   DFND 1 791,750 0 0
DICERNA PHARMACEUTICALS INC COM 253031108 1,195 125,000 SH   DFND 1 125,000 0 0
DRAPER OAKWOOD TECHNOLOGY RIGHT 09/19/2018 26146L129 103 180,000 SH   DFND 1 180,000 0 0
DRAPER OAKWOOD TECHNOLOGY *W EXP 09/19/202 26146L111 76 90,000 SH   DFND 1 90,000 0 0
EASTERLY ACQUISITION CORP *W EXP 07/29/202 27616L110 798 949,743 SH   DFND 1 949,743 0 0
ECHOSTAR CORP CL A 278768106 4,222 80,000 SH   DFND 1 80,000 0 0
EDISON INTL COM 281020107 6,366 100,000 SH   DFND 1 100,000 0 0
EIGER BIOPHARMACEUTICALS INC COM 28249U105 1,924 195,285 SH   DFND 1 195,285 0 0
ELECTRUM SPL ACQUISITION COR *W EXP 06/16/202 G3105C112 213 666,200 SH   DFND 1 666,200 0 0
ENERGY RECOVERY INC COM 29270J100 9,042 1,100,000 SH   DFND 1 1,100,000 0 0
ENOVA INTL INC COM 29357K103 13,832 627,300 SH   DFND 1 627,300 0 0
ESTRE AMBIENTAL INC *W EXP 12/21/202 G3206V118 116 200,000 SH   DFND 1 200,000 0 0
ETSY INC COM 29786A106 13,609 485,000 SH   DFND 1 485,000 0 0
EVOKE PHARMA INC COM 30049G104 238 114,300 SH   DFND 1 114,300 0 0
FACEBOOK INC CL A 30303M102 7,990 50,000 SH Put DFND 1 50,000 0 0
FATE THERAPEUTICS INC COM 31189P102 9,699 993,711 SH   DFND 1 993,711 0 0
FENNEC PHARMACEUTICALS INC COM 31447P100 10,489 867,185 SH   DFND 1 867,185 0 0
FERRARI N V COM N3167Y103 3,013 25,000 SH Put DFND 1 25,000 0 0
FOGO DE CHAO INC COM 344177100 14,963 950,000 SH   DFND 1 950,000 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 3,617 649,295 SH   DFND 1 649,295 0 0
GENCO SHIPPING & TRADING LTD SHS Y2685T131 970 68,200 SH   DFND 1 68,200 0 0
GIGCAPITAL INC RIGHT 03/06/2020 37518N114 76 200,000 SH   DFND 1 200,000 0 0
GIGCAPITAL INC *W EXP 06/08/202 37518N122 71 150,000 SH   DFND 1 150,000 0 0
GORDON POINTE ACQUISITION CO COM CLASS A 382788107 2,185 225,000 SH   DFND 1 225,000 0 0
GORDON POINTE ACQUISITION CO *W EXP 07/30/202 382788115 122 225,000 SH   DFND 1 225,000 0 0
GREIF INC CL B 397624206 694 11,910 SH   DFND 1 11,910 0 0
GRUBHUB INC COM 400110102 10,147 100,000 SH Put DFND 1 100,000 0 0
HAYMAKER ACQUISITION CORP *W EXP 10/27/202 420870115 247 300,000 SH   DFND 1 300,000 0 0
HEALTH INS INNOVATIONS INC COM CL A 42225K106 1,445 50,000 SH   DFND 1 50,000 0 0
HENNESSY CAP ACQUSTON CORP I *W EXP 06/15/202 42588L113 363 437,500 SH   DFND 1 437,500 0 0
HERBALIFE LTD COM USD SHS G4412G101 29,241 300,000 SH Put DFND 1 300,000 0 0
HOSTESS BRANDS INC *W EXP 11/04/202 44109J114 4,718 1,999,000 SH   DFND 1 1,999,000 0 0
I AM CAP ACQUISITION CO RIGHT 05/22/2019 45074Q124 70 200,000 SH   DFND 1 200,000 0 0
I AM CAP ACQUISITION CO *W EXP 05/22/202 45074Q116 308 700,000 SH   DFND 1 700,000 0 0
IFRESH INC COM 449538107 246 30,000 SH   DFND 1 30,000 0 0
INDUSTREA ACQUISITION CORP *W EXP 08/01/202 45579J112 676 1,234,606 SH   DFND 1 1,234,606 0 0
INSPIRED ENTMT INC COM 45782N108 3,379 614,319 SH   DFND 1 614,319 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 7,672 50,000 SH Put DFND 1 50,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 5,915 350,000 SH   DFND 1 350,000 0 0
IRSA INVERSIONES Y REP S A GLOBL DEP RCPT 450047204 11,170 472,292 SH   DFND 1 472,292 0 0
JOHNSON & JOHNSON COM 478160104 16,019 125,000 SH Put DFND 1 125,000 0 0
KELLOGG CO COM 487836108 13,002 200,000 SH Put DFND 1 200,000 0 0
KKR & CO L P DEL COM UNITS 48248M102 11,165 550,000 SH   DFND 1 550,000 0 0
LEAP THERAPEUTICS INC COM 52187K101 1,245 150,000 SH   DFND 1 150,000 0 0
LEGACY ACQUISITION CORP *W EXP 11/30/202 524643111 175 500,000 SH   DFND 1 500,000 0 0
LEISURE ACQUISITION CORP COM 52539T107 2,400 250,000 SH   DFND 1 250,000 0 0
LEISURE ACQUISITION CORP *W EXP 12/05/201 52539T115 94 125,000 SH   DFND 1 125,000 0 0
LIBERTY TRIPADVISOR HLDGS IN COM SER A 531465102 2,150 200,000 SH   DFND 1 200,000 0 0
M D C HLDGS INC COM 552676108 2,792 100,000 SH Put DFND 1 100,000 0 0
MACROGENICS INC COM 556099109 6,290 250,000 SH   DFND 1 250,000 0 0
MARINUS PHARMACEUTICALS INC COM 56854Q101 4,584 1,200,000 SH   DFND 1 1,200,000 0 0
MEDICINES CO COM 584688105 3,862 117,252 SH   DFND 1 117,252 0 0
MICRON TECHNOLOGY INC COM 595112103 17,206 330,000 SH   DFND 1 330,000 0 0
MIRAGEN THERAPEUTICS INC COM 60463E103 3,505 500,000 SH   DFND 1 500,000 0 0
MODERN MEDIA ACQUISITION RIGHT 99/99/9999 60765P129 400 1,000,000 SH   DFND 1 1,000,000 0 0
MODERN MEDIA ACQUISITION *W EXP 05/17/202 60765P111 260 500,000 SH   DFND 1 500,000 0 0
MONDELEZ INTL INC CL A 609207105 4,173 100,000 SH Put DFND 1 100,000 0 0
MTECH ACQUISITION CORP COM CLASS A 55378W107 719 75,000 SH   DFND 1 75,000 0 0
MTECH ACQUISITION CORP *W EXP 08/01/202 55378W115 47 75,000 SH   DFND 1 75,000 0 0
MUDRICK CAP ACQUISITION CORP COM CLASS A 624745105 18,242 1,900,000 SH   DFND 1 1,900,000 0 0
MUDRICK CAP ACQUISITION CORP *W EXP 02/12/202 624745113 1,235 1,900,000 SH   DFND 1 1,900,000 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 653 725,000 SH   DFND 1 725,000 0 0
NATIONAL OILWELL VARCO INC COM 637071101 10,859 295,000 SH   DFND 1 295,000 0 0
NAVIOS MARITIME HOLDINGS INC COM Y62196103 269 300,000 SH   DFND 1 300,000 0 0
NETFLIX INC COM 64110L106 59,070 200,000 SH Put DFND 1 200,000 0 0
NEW YORK REIT INC COM NEW 64976L208 16,132 749,999 SH   DFND 1 749,999 0 0
NEXEO SOLUTIONS INC *W EXP 06/09/202 65342H110 640 876,201 SH   DFND 1 876,201 0 0
NII HOLDINGS INC COM PAR 62913F508 29,636 14,045,499 SH   DFND 1 14,045,499 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 728 375,000 SH   DFND 1 375,000 0 0
ON DECK CAP INC COM 682163100 13,975 2,500,000 SH   DFND 1 2,500,000 0 0
ONCONOVA THERAPEUTICS INC COM NEW 68232V306 2,225 2,664,934 SH   DFND 1 2,664,934 0 0
ONCONOVA THERAPEUTICS INC *W EXP 07/11/202 68232V116 172 2,000,000 SH   DFND 1 2,000,000 0 0
ONE MADISON CORP COM CL A G6772P100 2,388 250,000 SH   DFND 1 250,000 0 0
OPES ACQUISITION CORP UNIT 03/07/2023 68373P209 1,508 150,000 SH   DFND 1 150,000 0 0
OSPREY ENERGY ACQUISITION CO *W EXP 07/21/202 688397116 95 125,000 SH   DFND 1 125,000 0 0
OTONOMY INC COM 68906L105 2,730 650,000 SH   DFND 1 650,000 0 0
PEABODY ENERGY CORP NEW COM 704551100 15,241 417,566 SH   DFND 1 417,566 0 0
PENSARE ACQUISITION CORP RIGHT 99/99/9999 70957E121 115 230,000 SH   DFND 1 230,000 0 0
PENSARE ACQUISITION CORP *W EXP 07/27/202 70957E113 54 115,000 SH   DFND 1 115,000 0 0
PG&E CORP COM 69331C108 36,985 841,910 SH   DFND 1 841,910 0 0
PLX PHARMA INC COM 72942A107 73 21,660 SH   DFND 1 21,660 0 0
REDHILL BIOPHARMA LTD SPONSORED ADS 757468103 8,569 1,663,903 SH   DFND 1 1,663,903 0 0
REGENXBIO INC COM 75901B107 746 25,000 SH   DFND 1 25,000 0 0
SEADRILL LIMITED SHS G7945E105 494 2,469,200 SH Put DFND 1 2,469,200 0 0
SELECT SECTOR SPDR TR ENERGY 81369Y506 6,741 100,000 SH Put DFND 1 100,000 0 0
SELECT SECTOR SPDR TR SBI CONS STPLS 81369Y308 10,526 200,000 SH Put DFND 1 200,000 0 0
SELECT SECTOR SPDR TR SBI INT-UTILS 81369Y886 10,106 200,000 SH Put DFND 1 200,000 0 0
SEQUENTIAL BRNDS GROUP INC N COM 81734P107 6,998 3,356,200 SH   DFND 1 3,356,200 0 0
SIERRA ONCOLOGY INC COM 82640U107 3,600 1,739,074 SH   DFND 1 1,739,074 0 0
SIMPLY GOOD FOODS CO *W EXP 07/07/202 82900L110 3,907 800,000 SH   DFND 1 800,000 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 1,530 844,112 SH   DFND 1 844,112 0 0
SOLENO THERAPEUTICS INC *W EXP 11/12/201 834203135 273 602,443 SH   DFND 1 602,443 0 0
SPDR SERIES TRUST S&P RETAIL ETF 78464A714 4,430 100,000 SH Put DFND 1 100,000 0 0
STRONGBRIDGE BIOPHARMA PLC SHS USD G85347105 2,213 250,000 SH   DFND 1 250,000 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 4,030 283,230 SH   DFND 1 283,230 0 0
SYNTHETIC BIOLOGICS INC COM 87164U102 478 1,500,000 SH   DFND 1 1,500,000 0 0
TARGET CORP COM 87612E106 1,736 25,000 SH Put DFND 1 25,000 0 0
TESLA INC COM 88160R101 161,009 605,000 SH Put DFND 1 605,000 0 0
TETRAPHASE PHARMACEUTICALS I COM 88165N105 1,842 600,000 SH   DFND 1 600,000 0 0
TIBERIUS ACQUISITION CORP UNIT 02/28/2021 88633A206 4,542 450,000 SH   DFND 1 450,000 0 0
TIDEWATER INC NEW *W EXP 07/31/202 88642R125 509 60,962 SH   DFND 1 60,962 0 0
TIME WARNER INC COM NEW 887317303 18,916 200,000 SH   DFND 1 200,000 0 0
TRACON PHARMACEUTICALS INC COM 89237H100 3,450 1,500,000 SH   DFND 1 1,500,000 0 0
TRIVAGO N V SPON ADS A SHS 89686D105 27,800 4,000,000 SH   DFND 1 4,000,000 0 0
TRUECAR INC COM 89785L107 30,871 3,263,358 SH   DFND 1 3,263,358 0 0
UNION ACQUISITION CORP UNIT 99/99/9999 G9366W119 2,046 200,000 SH   DFND 1 200,000 0 0
UNIQURE NV SHS N90064101 24,675 1,050,000 SH   DFND 1 1,050,000 0 0
VASCULAR BIOGENICS LTD COM M96883109 920 400,000 SH   DFND 1 400,000 0 0
WALMART INC COM 931142103 6,673 75,000 SH Put DFND 1 75,000 0 0
WARRIOR MET COAL INC COM 93627C101 8,403 300,000 SH   DFND 1 300,000 0 0
WILLSCOT CORP *W EXP 09/10/202 971375118 4,309 2,579,958 SH   DFND 1 2,579,958 0 0
WRIGHT MED GROUP N V RIGHT 03/01/2019 N96617126 1,122 819,181 SH   DFND 1 819,181 0 0
XENIA HOTELS & RESORTS INC COM 984017103 14,297 725,000 SH   DFND 1 725,000 0 0
ZAFGEN INC COM 98885E103 9,685 1,300,000 SH   DFND 1 1,300,000 0 0