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 19,770 100,500 SH Put DFND 1 100,500 0 0
ADECOAGRO S A COM L00849106 2,783 350,000 SH   DFND 1 350,000 0 0
ADIENT PLC ORD SHS G0084W101 42,795 870,000 SH   DFND 1 870,000 0 0
ADMA BIOLOGICS INC COM 000899104 3,991 885,000 SH   DFND 1 885,000 0 0
ALDEYRA THERAPEUTICS INC COM 01438T106 7,950 1,000,000 SH   DFND 1 1,000,000 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 29,547 300,000 SH   DFND 1 300,000 0 0
APPLIED GENETIC TECHNOL CORP COM 03820J100 1,110 300,000 SH   DFND 1 300,000 0 0
ARDELYX INC COM 039697107 2,405 650,000 SH   DFND 1 650,000 0 0
ARRAY BIOPHARMA INC COM 04269X105 7,551 450,000 SH   DFND 1 450,000 0 0
ATLANTIC ACQUISITION CORP RIGHT 02/08/2019 048206304 154 270,000 SH   DFND 1 270,000 0 0
AVEO PHARMACEUTICALS INC COM 053588109 5,650 2,500,000 SH   DFND 1 2,500,000 0 0
AVEO PHARMACEUTICALS INC COM 053588109 1,130 500,000 SH Call DFND 1 500,000 0 0
AZURRX BIOPHARMA INC COM 05502L105 1,284 400,000 SH   DFND 1 400,000 0 0
BIG ROCK PARTNERS ACQUISI CO RIGHT 12/01/2022 089482129 74 165,000 SH   DFND 1 165,000 0 0
BIG ROCK PARTNERS ACQUISI CO *W EXP 12/01/202 089482111 31 82,500 SH   DFND 1 82,500 0 0
BISON CAP ACQUISITION CORP RIGHT 03/20/2019 G1142P138 33 100,000 SH   DFND 1 100,000 0 0
BISON CAP ACQUISITION CORP *W EXP 06/20/202 G1142P112 19 50,000 SH   DFND 1 50,000 0 0
BLACK RIDGE ACQUISITION CORP RIGHT 07/10/2019 09216T123 70 200,000 SH   DFND 1 200,000 0 0
BLACK RIDGE ACQUISITION CORP *W EXP 07/10/202 09216T115 301 700,000 SH   DFND 1 700,000 0 0
BLACKSTONE GROUP L P COM UNIT LTD 09253U108 5,469 170,000 SH   DFND 1 170,000 0 0
CARVANA CO CL A 146869102 64,964 1,561,634 SH   DFND 1 1,561,634 0 0
CATERPILLAR INC DEL COM 149123101 10,175 75,000 SH Put DFND 1 75,000 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 35 87,500 SH   DFND 1 87,500 0 0
COCA COLA CO COM 191216100 26,316 600,000 SH Put DFND 1 600,000 0 0
CONSTELLATION ALPHA CAP CORP RIGHT 99/99/9999 G2379F132 117 180,000 SH   DFND 1 180,000 0 0
CONSTELLATION ALPHA CAP CORP *W EXP 03/23/202 G2379F116 137 380,000 SH   DFND 1 380,000 0 0
CONTRAFECT CORP COM 212326102 5,138 2,324,836 SH   DFND 1 2,324,836 0 0
CRESUD S A C I F Y A SPONSORED ADR 226406106 10,100 681,500 SH   DFND 1 681,500 0 0
DIANA SHIPPING INC COM Y2066G104 2,109 438,364 SH   DFND 1 438,364 0 0
DRAPER OAKWOOD TECHNOLOGY RIGHT 09/19/2018 26146L129 106 180,000 SH   DFND 1 180,000 0 0
DRAPER OAKWOOD TECHNOLOGY *W EXP 09/19/202 26146L111 66 90,000 SH   DFND 1 90,000 0 0
EASTERLY ACQUISITION CORP *W EXP 07/29/202 27616L110 625 500,000 SH   DFND 1 500,000 0 0
EDISON INTL COM 281020107 6,327 100,000 SH   DFND 1 100,000 0 0
EIGER BIOPHARMACEUTICALS INC COM 28249U105 3,602 295,285 SH   DFND 1 295,285 0 0
ELLIE MAE INC COM 28849P100 2,596 25,000 SH Put DFND 1 25,000 0 0
ENERGY RECOVERY INC COM 29270J100 8,888 1,100,000 SH   DFND 1 1,100,000 0 0
ENOVA INTL INC COM 29357K103 19,424 531,449 SH   DFND 1 531,449 0 0
ESTRE AMBIENTAL INC *W EXP 12/21/202 G3206V118 319 750,000 SH   DFND 1 750,000 0 0
ETSY INC COM 29786A106 7,383 175,000 SH   DFND 1 175,000 0 0
EVOKE PHARMA INC COM 30049G104 286 114,300 SH   DFND 1 114,300 0 0
FACEBOOK INC CL A 30303M102 9,716 50,000 SH Put DFND 1 50,000 0 0
FATE THERAPEUTICS INC COM 31189P102 8,437 744,011 SH   DFND 1 744,011 0 0
FENNEC PHARMACEUTICALS INC COM 31447P100 9,053 867,185 SH   DFND 1 867,185 0 0
FERRARI N V COM N3167Y103 13,501 100,000 SH Put DFND 1 100,000 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 16,065 1,350,000 SH   DFND 1 1,350,000 0 0
GENCO SHIPPING & TRADING LTD SHS Y2685T131 1,057 68,200 SH   DFND 1 68,200 0 0
GIGCAPITAL INC RIGHT 03/06/2020 37518N114 90 200,000 SH   DFND 1 200,000 0 0
GIGCAPITAL INC *W EXP 06/08/202 37518N122 68 150,000 SH   DFND 1 150,000 0 0
GORDON POINTE ACQUISITION CO COM CLASS A 382788107 2,187 225,000 SH   DFND 1 225,000 0 0
GORDON POINTE ACQUISITION CO *W EXP 07/30/202 382788115 124 225,000 SH   DFND 1 225,000 0 0
GREIF INC CL B 397624206 686 11,910 SH   DFND 1 11,910 0 0
GRUBHUB INC COM 400110102 10,491 100,000 SH Put DFND 1 100,000 0 0
GRUPO FINANCIERO GALICIA S A SP ADR 10 SH B 399909100 1,484 45,000 SH   DFND 1 45,000 0 0
HAYMAKER ACQUISITION CORP *W EXP 10/27/202 420870115 249 300,000 SH   DFND 1 300,000 0 0
HENNESSY CAP ACQUSTON CORP I *W EXP 06/15/202 42588L113 774 537,500 SH   DFND 1 537,500 0 0
HERBALIFE NUTRITION LTD COM SHS G4412G101 21,488 400,000 SH Put DFND 1 400,000 0 0
HL ACQUISITIONS CORP UNIT 06/21/2023 G4603R114 1,811 180,000 SH   DFND 1 180,000 0 0
HOSTESS BRANDS INC *W EXP 11/04/202 44109J114 3,786 2,226,799 SH   DFND 1 2,226,799 0 0
I AM CAP ACQUISITION CO RIGHT 05/22/2019 45074Q124 76 200,000 SH   DFND 1 200,000 0 0
I AM CAP ACQUISITION CO *W EXP 05/22/202 45074Q116 295 700,000 SH   DFND 1 700,000 0 0
IFRESH INC COM 449538107 156 30,000 SH   DFND 1 30,000 0 0
INDUSTREA ACQUISITION CORP *W EXP 08/01/202 45579J112 741 1,234,606 SH   DFND 1 1,234,606 0 0
INSPIRED ENTMT INC COM 45782N108 4,421 707,330 SH   DFND 1 707,330 0 0
INTEC PHARMA LTD JERUSALEM SHS M53644106 660 150,000 SH   DFND 1 150,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 4,480 350,000 SH   DFND 1 350,000 0 0
IRSA INVERSIONES Y REP S A GLOBL DEP RCPT 450047204 11,520 666,300 SH   DFND 1 666,300 0 0
JOHNSON & JOHNSON COM 478160104 14,561 120,000 SH Put DFND 1 120,000 0 0
KELLOGG CO COM 487836108 13,974 200,000 SH Put DFND 1 200,000 0 0
KROGER CO COM 501044101 18,493 650,000 SH   DFND 1 650,000 0 0
KROGER CO COM 501044101 11,380 400,000 SH Call DFND 1 400,000 0 0
LEAP THERAPEUTICS INC COM 52187K101 1,350 150,000 SH   DFND 1 150,000 0 0
LEGACY ACQUISITION CORP *W EXP 11/30/202 524643111 215 500,000 SH   DFND 1 500,000 0 0
LEISURE ACQUISITION CORP COM 52539T107 2,415 250,000 SH   DFND 1 250,000 0 0
LEISURE ACQUISITION CORP *W EXP 12/05/201 52539T115 89 125,000 SH   DFND 1 125,000 0 0
LF CAP ACQUISITION CORP UNIT 06/19/2025 50200K207 4,532 450,000 SH   DFND 1 450,000 0 0
LIBERTY TRIPADVISOR HLDGS IN COM SER A 531465102 2,013 125,000 SH   DFND 1 125,000 0 0
M D C HLDGS INC COM 552676108 3,077 100,000 SH Put DFND 1 100,000 0 0
MACROGENICS INC COM 556099109 5,423 262,600 SH   DFND 1 262,600 0 0
MARINUS PHARMACEUTICALS INC COM 56854Q101 8,484 1,200,000 SH   DFND 1 1,200,000 0 0
MEDICINES CO COM 584688105 4,670 127,252 SH   DFND 1 127,252 0 0
MICRON TECHNOLOGY INC COM 595112103 17,305 330,000 SH   DFND 1 330,000 0 0
MIRAGEN THERAPEUTICS INC COM 60463E103 3,205 500,000 SH   DFND 1 500,000 0 0
MODERN MEDIA ACQUISITION RIGHT 99/99/9999 60765P129 520 1,000,000 SH   DFND 1 1,000,000 0 0
MODERN MEDIA ACQUISITION *W EXP 05/17/202 60765P111 325 500,000 SH   DFND 1 500,000 0 0
MTECH ACQUISITION CORP *W EXP 08/01/202 55378W115 49 75,000 SH   DFND 1 75,000 0 0
MUDRICK CAP ACQUISITION CORP COM CLASS A 624745105 18,316 1,900,000 SH   DFND 1 1,900,000 0 0
MUDRICK CAP ACQUISITION CORP *W EXP 02/12/202 624745113 1,600 2,500,000 SH   DFND 1 2,500,000 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 870 725,000 SH   DFND 1 725,000 0 0
NATIONAL OILWELL VARCO INC COM 637071101 12,803 295,000 SH   DFND 1 295,000 0 0
NAVIOS MARITIME HOLDINGS INC COM Y62196103 256 300,000 SH   DFND 1 300,000 0 0
NETFLIX INC COM 64110L106 78,286 200,000 SH Put DFND 1 200,000 0 0
NEW FRONTIER CORP UNIT 99/99/9999 G6485P116 1,003 100,000 SH   DFND 1 100,000 0 0
NEW YORK REIT INC COM NEW 64976L208 13,680 749,999 SH   DFND 1 749,999 0 0
NEXEO SOLUTIONS INC *W EXP 06/09/202 65342H110 671 1,175,341 SH   DFND 1 1,175,341 0 0
NII HLDGS INC COM PAR 62913F508 54,777 14,045,499 SH   DFND 1 14,045,499 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 1,005 375,000 SH   DFND 1 375,000 0 0
ON DECK CAP INC COM 682163100 21,350 3,050,000 SH   DFND 1 3,050,000 0 0
ONCONOVA THERAPEUTICS INC COM NEW 68232V306 5,867 14,503,169 SH   DFND 1 14,503,169 0 0
ONCOSEC MED INC COM NEW 68234L207 414 300,000 SH   DFND 1 300,000 0 0
ONE MADISON CORP COM CL A G6772P100 2,425 250,000 SH   DFND 1 250,000 0 0
ONE MADISON CORP *W EXP 99/99/999 G6772P126 128 125,000 SH   DFND 1 125,000 0 0
OPES ACQUISITION CORP COM 68373P100 1,455 150,000 SH   DFND 1 150,000 0 0
OPES ACQUISITION CORP *W EXP 03/13/202 68373P118 53 150,000 SH   DFND 1 150,000 0 0
OSPREY ENERGY ACQUISITION CO *W EXP 07/21/202 688397116 239 149,600 SH   DFND 1 149,600 0 0
OTONOMY INC COM 68906L105 3,080 800,000 SH   DFND 1 800,000 0 0
PENSARE ACQUISITION CORP RIGHT 99/99/9999 70957E121 296 605,000 SH   DFND 1 605,000 0 0
PENSARE ACQUISITION CORP *W EXP 07/27/202 70957E113 74 115,000 SH   DFND 1 115,000 0 0
PG&E CORP COM 69331C108 25,192 591,910 SH   DFND 1 591,910 0 0
POLARITYTE INC COM 731094108 4,002 170,000 SH   DFND 1 170,000 0 0
PURE ACQUISITION CORP CL A 74621Q106 2,050 200,000 SH   DFND 1 200,000 0 0
REDHILL BIOPHARMA LTD SPONSORED ADS 757468103 17,424 2,042,654 SH   DFND 1 2,042,654 0 0
SEADRILL LIMITED SHS G7945E105 2,974 13,519,200 SH Put DFND 1 13,519,200 0 0
SELECT SECTOR SPDR TR SBI CONS STPLS 81369Y308 5,153 100,000 SH Put DFND 1 100,000 0 0
SEQUENTIAL BRNDS GROUP INC N COM 81734P107 6,612 3,356,200 SH   DFND 1 3,356,200 0 0
SIERRA ONCOLOGY INC COM 82640U107 5,328 1,800,000 SH   DFND 1 1,800,000 0 0
SIMPLY GOOD FOODS CO *W EXP 07/07/202 82900L110 3,318 799,459 SH   DFND 1 799,459 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 1,975 844,112 SH   DFND 1 844,112 0 0
SPDR SERIES TRUST S&P REGL BKG 78464A698 18,300 300,000 SH Put DFND 1 300,000 0 0
SPDR SERIES TRUST S&P RETAIL ETF 78464A714 21,852 450,000 SH Put DFND 1 450,000 0 0
STRONGBRIDGE BIOPHARMA PLC SHS USD G85347105 1,500 250,000 SH   DFND 1 250,000 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 2,633 375,000 SH   DFND 1 375,000 0 0
SYNTHETIC BIOLOGICS INC COM 87164U102 359 1,500,000 SH   DFND 1 1,500,000 0 0
TAPIMMUNE INC COM PAR 876033408 1,886 200,000 SH   DFND 1 200,000 0 0
TARGET CORP COM 87612E106 1,903 25,000 SH Put DFND 1 25,000 0 0
TESLA INC COM 88160R101 425,258 1,240,000 SH Put DFND 1 1,240,000 0 0
TETRAPHASE PHARMACEUTICALS I COM 88165N105 2,142 600,000 SH   DFND 1 600,000 0 0
TIBERIUS ACQUISITION CORP COM 88633A107 4,325 450,000 SH   DFND 1 450,000 0 0
TIBERIUS ACQUISITION CORP *W EXP 02/28/202 88633A115 252 450,000 SH   DFND 1 450,000 0 0
TIDEWATER INC NEW *W EXP 07/31/202 88642R125 39 14,178 SH   DFND 1 14,178 0 0
TOCAGEN INC COM 888846102 467 50,000 SH   DFND 1 50,000 0 0
TRACON PHARMACEUTICALS INC COM 89237H100 7,073 2,738,938 SH   DFND 1 2,738,938 0 0
TRIDENT ACQUISITIONS CORP COM 89615T106 2,438 250,000 SH   DFND 1 250,000 0 0
TRIDENT ACQUISITIONS CORP *W EXP 05/09/202 89615T114 542 1,693,750 SH   DFND 1 1,693,750 0 0
TRINITY MERGER CORP COM CL A 89653L106 7,000 700,000 SH   DFND 1 700,000 0 0
TRIVAGO N V SPON ADS A SHS 89686D105 24,970 5,500,000 SH   DFND 1 5,500,000 0 0
TRUECAR INC COM 89785L107 34,138 3,383,358 SH   DFND 1 3,383,358 0 0
TWELVE SEAS INVESTMENT COMPA UNIT 06/21/2023 G9145A123 1,761 175,000 SH   DFND 1 175,000 0 0
UNION ACQUISITION CORP SHS G9366W101 1,938 200,000 SH   DFND 1 200,000 0 0
UNION ACQUISITION CORP RIGHT 12/02/2019 G9366W135 64 200,000 SH   DFND 1 200,000 0 0
UNION ACQUISITION CORP *W EXP 07/01/202 G9366W127 70 200,000 SH   DFND 1 200,000 0 0
UNIQURE NV SHS N90064101 39,690 1,050,000 SH   DFND 1 1,050,000 0 0
VASCULAR BIOGENICS LTD COM M96883109 762 346,574 SH   DFND 1 346,574 0 0
VECTOIQ ACQUISITION CORP COM 92243N103 5,000 500,000 SH   DFND 1 500,000 0 0
WARRIOR MET COAL INC COM 93627C101 6,203 225,000 SH   DFND 1 225,000 0 0
WILLSCOT CORP *W EXP 09/10/202 971375118 5,831 2,579,958 SH   DFND 1 2,579,958 0 0
WRIGHT MED GROUP N V RIGHT 03/01/2019 N96617126 517 403,531 SH   DFND 1 403,531 0 0
XENIA HOTELS & RESORTS INC COM 984017103 13,398 550,000 SH   DFND 1 550,000 0 0
ZAFGEN INC COM 98885E103 16,368 1,600,000 SH   DFND 1 1,600,000 0 0
ZOGENIX INC COM NEW 98978L204 2,210 50,000 SH   DFND 1 50,000 0 0