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
ADIENT PLC ORD SHS G0084W101 11,370 1,253,588 SH   DFND   1,253,588 0 0
ADMA BIOLOGICS INC COM 000899104 5,760 2,000,000 SH   DFND   2,000,000 0 0
AFFIMED N V COM N01045108 2,370 1,500,000 SH   DFND   1,500,000 0 0
AKAZOO SA SHS L0164E108 279 99,812 SH   DFND   99,812 0 0
AKAZOO SA *W EXP 09/11/202 L0164E116 160 489,700 SH   DFND   489,700 0 0
ALDEYRA THERAPEUTICS INC COM 01438T106 2,284 925,000 SH   DFND   925,000 0 0
ALLEGRO MERGER CORP *W EXP 01/06/202 01749N111 22 443,772 SH   DFND   443,772 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 18,504 170,000 SH   DFND   170,000 0 0
ALTRIA GROUP INC COM 02209S103 20,258 523,860 SH   DFND   523,860 0 0
AMAZON COM INC COM 023135106 23,396 12,000 SH   DFND   12,000 0 0
AMCI ACQUISITION CORP *W EXP 05/20/202 00165R119 35 200,000 SH   DFND   200,000 0 0
ANGI HOMESERVICES INC COM CL A 00183L102 12,926 2,462,173 SH   DFND   2,462,173 0 0
APPLIED GENETIC TECHNOL CORP COM 03820J100 1,755 535,000 SH   DFND   535,000 0 0
APTOSE BIOSCIENCES INC COM NEW 03835T200 1,882 316,887 SH   DFND   316,887 0 0
ARCTURUS THERAPEUTICS HLDG I COM 03969T109 229 16,855 SH   DFND   16,855 0 0
ARDELYX INC COM 039697107 12,247 2,154,184 SH   DFND   2,154,184 0 0
ARYA SCIENCES ACQUISITION CO SHS CL A G3165V109 10,180 1,000,000 SH   DFND   1,000,000 0 0
ARYA SCIENCES ACQUISITION CO *W EXP 10/10/202 G3165V125 920 500,000 SH   DFND   500,000 0 0
AT HOME GROUP INC COM 04650Y100 2,244 1,110,793 SH   DFND   1,110,793 0 0
BARRICK GOLD CORPORATION COM 067901108 9,370 511,477 SH   DFND   511,477 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 9,142 50,000 SH Put DFND   50,000 0 0
BIG ROCK PARTNERS ACQUISI CO *W EXP 12/01/202 089482111 5 82,500 SH   DFND   82,500 0 0
BIG ROCK PARTNERS ACQUISI CO RIGHT 12/01/2022 089482129 21 165,000 SH   DFND   165,000 0 0
BIOCERES CROP SOLUTIONS CORP *W EXP 03/14/202 G1117K106 28 200,000 SH   DFND   200,000 0 0
BIOMX INC *W EXP 10/16/202 09090D111 53 88,800 SH   DFND   88,800 0 0
BONANZA CREEK ENERGY INC COM NEW 097793400 140 12,500 SH   DFND   12,500 0 0
BROOGE HLDGS LTD *W EXP 12/20/202 G1611B115 280 349,402 SH   DFND   349,402 0 0
CAPITAL ONE FINL CORP COM 14040H105 28,024 555,817 SH   DFND   555,817 0 0
CARDLYTICS INC COM 14161W105 30,297 866,606 SH   DFND   866,606 0 0
CARGURUS INC COM CL A 141788109 4,811 254,000 SH   DFND   254,000 0 0
CARS COM INC COM 14575E105 710 165,000 SH   DFND   165,000 0 0
CARVANA CO CL A 146869102 80,619 1,463,423 SH   DFND   1,463,423 0 0
CHIMERIX INC COM 16934W106 475 330,061 SH   DFND   330,061 0 0
CIMPRESS PLC SHS EURO G2143T103 4,522 84,997 SH   DFND   84,997 0 0
CIT GROUP INC COM NEW 125581801 863 50,000 SH   DFND   50,000 0 0
COCA COLA CO COM 191216100 8,850 200,000 SH Put DFND   200,000 0 0
CONTRAFECT CORP COM NEW 212326300 676 117,500 SH   DFND   117,500 0 0
COOPER STD HLDGS INC COM 21676P103 1,336 130,038 SH   DFND   130,038 0 0
CRESUD S A C I F Y A SPONSORED ADR 226406106 3,349 962,302 SH   DFND   962,302 0 0
CUE BIOPHARMA INC COM 22978P106 4,541 320,000 SH   DFND   320,000 0 0
DHT HOLDINGS INC SHS NEW Y2065G121 7,670 1,000,010 SH   DFND   1,000,010 0 0
DIAGEO P L C SPON ADR NEW 25243Q205 22,246 175,000 SH   DFND   175,000 0 0
DIAMOND S SHIPPING INC COM Y20676105 8,475 717,653 SH   DFND   717,653 0 0
DIANA SHIPPING INC COM Y2066G104 138 93,229 SH   DFND   93,229 0 0
DIRTT ENVIRONMENTAL SOLUTION COM 25490H106 5,981 5,904,800 SH   DFND   5,904,800 0 0
DUPONT DE NEMOURS INC COM 26614N102 13,640 400,000 SH   DFND   400,000 0 0
EIGER BIOPHARMACEUTICALS INC COM 28249U105 13,872 2,040,000 SH   DFND   2,040,000 0 0
ENERGY RECOVERY INC COM 29270J100 3,869 520,000 SH   DFND   520,000 0 0
ENOVA INTL INC COM 29357K103 15,909 1,097,939 SH   DFND   1,097,939 0 0
EURONAV NV ANTWERPEN SHS B38564108 1,692 150,000 SH   DFND   150,000 0 0
FALCON MINERALS CORP *W EXP 07/21/202 30607B208 22 149,100 SH   DFND   149,100 0 0
FATE THERAPEUTICS INC COM 31189P102 4,997 225,000 SH   DFND   225,000 0 0
FENNEC PHARMACEUTICALS INC COM 31447P100 5,644 950,000 SH   DFND   950,000 0 0
FORTRESS BIOTECH INC COM 34960Q109 379 200,000 SH   DFND   200,000 0 0
FORUM MERGER II CORP *W EXP 09/30/202 34986F111 81 300,000 SH   DFND   300,000 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 2,706 781,820 SH   DFND   781,820 0 0
GENCO SHIPPING & TRADING LTD SHS Y2685T131 1,159 180,496 SH   DFND   180,496 0 0
GENERAL MTRS CO COM 37045V100 15,585 750,000 SH Call DFND   750,000 0 0
GLOBALSTAR INC COM 378973408 4,542 15,415,778 SH   DFND   15,415,778 0 0
GLOBALSTAR INC NOTE 5.750% 4/0 378973AD3 324 513,719 PRN   DFND   513,719 0 0
GLRY STR NW MDIA GRUP HLDG L SHS G39973105 41 10,000 SH   DFND   10,000 0 0
GLRY STR NW MDIA GRUP HLDG L *W EXP 02/13/202 G39973113 18 225,000 SH   DFND   225,000 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 2,891 860,375 SH   DFND   860,375 0 0
GORDON POINTE ACQUISITION CO *W EXP 07/30/202 382788115 41 225,000 SH   DFND   225,000 0 0
GRAF INDL CORP *W EXP 12/31/202 384278115 23 225,000 SH   DFND   225,000 0 0
GREIF INC CL B 397624206 477 11,910 SH   DFND   11,910 0 0
GRUBHUB INC COM 400110102 25,083 615,821 SH   DFND   615,821 0 0
HL ACQUISITIONS CORP *W EXP 06/21/202 G4603R122 9 180,000 SH   DFND   180,000 0 0
HL ACQUISITIONS CORP RIGHT 07/17/2023 G4603R130 14 180,000 SH   DFND   180,000 0 0
HOSTESS BRANDS INC *W EXP 11/04/202 44109J114 1,437 2,520,000 SH   DFND   2,520,000 0 0
IAC INTERACTIVECORP COM 44919P508 37,736 210,550 SH   DFND   210,550 0 0
IAMGOLD CORP COM 450913108 684 300,000 SH   DFND   300,000 0 0
IMMUNOVANT INC *W EXP 12/18/202 45258J110 609 253,600 SH   DFND   253,600 0 0
INSPIRED ENTMT INC COM 45782N108 2,759 816,325 SH   DFND   816,325 0 0
INTL GNRL INSURANCE HLDNGS L *W EXP 03/17/202 G4809J114 189 450,000 SH   DFND   450,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 2,993 100,000 SH   DFND   100,000 0 0
IRSA INVERSIONES Y REP S A GLOBL DEP RCPT 450047204 3,153 906,224 SH   DFND   906,224 0 0
IRSA PROPIEDADES COMERCIALES SPONSORED ADR 463588103 1,408 194,165 SH   DFND   194,165 0 0
ISHARES TR U.S. REAL ES ETF 464287739 348 5,000 SH Call DFND   5,000 0 0
ISHARES TR U.S. REAL ES ETF 464287739 2,783 40,000 SH Put DFND   40,000 0 0
JOHNSON & JOHNSON COM 478160104 6,557 50,000 SH Put DFND   50,000 0 0
JPMORGAN CHASE & CO COM 46625H100 3,151 35,000 SH   DFND   35,000 0 0
JUMIA TECHNOLOGIES AG SPONSORED ADS 48138M105 905 309,779 SH   DFND   309,779 0 0
KADMON HLDGS INC COM 48283N106 712 170,000 SH   DFND   170,000 0 0
KALEYRA INC *W EXP 12/12/202 483379111 115 135,000 SH   DFND   135,000 0 0
KROGER CO COM 501044101 3,012 100,000 SH Call DFND   100,000 0 0
LEAP THERAPEUTICS INC COM 52187K101 437 276,466 SH   DFND   276,466 0 0
LEGACY ACQUISITION CORP *W EXP 11/30/202 524643111 125 500,000 SH   DFND   500,000 0 0
LEISURE ACQUISITION CORP *W EXP 12/05/201 52539T115 21 125,000 SH   DFND   125,000 0 0
LF CAP ACQUISITION CORP *W EXP 06/22/202 50200K116 117 450,000 SH   DFND   450,000 0 0
MAIDEN HOLDINGS LTD SHS G5753U112 7,168 7,876,964 SH   DFND   7,876,964 0 0
MARINUS PHARMACEUTICALS INC COM 56854Q101 1,879 925,382 SH   DFND   925,382 0 0
MEGALITH FINL ACQUISITION CO *W EXP 08/26/202 58518F117 88 400,000 SH   DFND   400,000 0 0
MEIRAGTX HOLDINGS PLC COM G59665102 5,589 415,874 SH   DFND   415,874 0 0
MENLO THERAPEUTICS INC COM 586858102 5,354 1,997,611 SH   DFND   1,997,611 0 0
MUDRICK CAP ACQUISITION CORP COM CLASS A 624745105 19,662 1,900,000 SH   DFND   1,900,000 0 0
MUDRICK CAP ACQUISITION CORP *W EXP 02/12/202 624745113 875 2,500,000 SH   DFND   2,500,000 0 0
MUSTANG BIO INC COM 62818Q104 1,233 460,000 SH   DFND   460,000 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 239 725,000 SH   DFND   725,000 0 0
NAVIOS MARITIME CONTAINERS L COM UNIT RP LP Y62151108 1,587 2,235,000 SH   DFND   2,235,000 0 0
NOVUS THERAPEUTICS INC COM 67011N105 369 946,204 SH   DFND   946,204 0 0
NUVEEN NEW YORK AMT QLT MUNI COM 670656107 180 14,400 SH   DFND   14,400 0 0
ON DECK CAP INC COM 682163100 5,327 3,459,669 SH   DFND   3,459,669 0 0
ONCOSEC MED INC COM 68234L306 102 79,935 SH   DFND   79,935 0 0
ONEMAIN HLDGS INC COM 68268W103 1,122 58,715 SH   DFND   58,715 0 0
OPES ACQUISITION CORP *W EXP 03/13/202 68373P118 8 150,000 SH   DFND   150,000 0 0
ORISUN ACQUISITION CORP COM 68632T109 510 50,000 SH   DFND   50,000 0 0
ORISUN ACQUISITION CORP RIGHT 05/31/2024 68632T125 9 50,000 SH   DFND   50,000 0 0
ORISUN ACQUISITION CORP *W EXP 05/31/202 68632T117 3 50,000 SH   DFND   50,000 0 0
OTONOMY INC COM 68906L105 1,773 900,000 SH   DFND   900,000 0 0
PBF LOGISTICS LP UNIT LTD PTNR 69318Q104 106 15,663 SH   DFND   15,663 0 0
PENN VA CORP COM 70788V102 3,406 1,102,306 SH   DFND   1,102,306 0 0
PG&E CORP COM 69331C108 1 100 SH   DFND   100 0 0
PG&E CORP COM 69331C108 4,495 500,000 SH Put DFND   500,000 0 0
PIERIS PHARMACEUTICALS INC COM 720795103 205 90,000 SH   DFND   90,000 0 0
PROCTER & GAMBLE CO COM 742718109 16,500 150,000 SH Put DFND   150,000 0 0
SCHULTZE SPL PURP ACQUSTN CO *W EXP 12/31/202 80821R117 66 300,000 SH   DFND   300,000 0 0
SCORPIO TANKERS INC NOTE 3.000% 5/1 80918TAB5 1,700 2,000,000 PRN   DFND   2,000,000 0 0
SCORPIO TANKERS INC SHS Y7542C130 1,912 100,000 SH   DFND   100,000 0 0
SELECTA BIOSCIENCES INC COM 816212104 1,722 714,619 SH   DFND   714,619 0 0
SIERRA ONCOLOGY INC COM NEW 82640U404 1,376 140,156 SH   DFND   140,156 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 952 400,000 SH   DFND   400,000 0 0
STARBUCKS CORP COM 855244109 6,575 100,000 SH   DFND   100,000 0 0
STRONGBRIDGE BIOPHARMA PLC SHS USD G85347105 868 458,971 SH   DFND   458,971 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 10,235 933,038 SH   DFND   933,038 0 0
TEEKAY TANKERS LTD CL A Y8565N300 3,184 143,124 SH   DFND   143,124 0 0
TENZING ACQUISITION CORP *W EXP 02/23/202 G8708A108 18 200,000 SH   DFND   200,000 0 0
TESLA INC COM 88160R101 13,100 25,000 SH Call DFND   25,000 0 0
TESLA INC COM 88160R101 103,490 197,500 SH Put DFND   197,500 0 0
TG THERAPEUTICS INC COM 88322Q108 3,919 398,271 SH   DFND   398,271 0 0
TOTTENHAM ACQUISITION I LTD *W EXP 05/06/202 G8959N114 23 542,000 SH   DFND   542,000 0 0
TOTTENHAM ACQUISITION I LTD RIGHT 06/05/2020 G8959N122 15 134,000 SH   DFND   134,000 0 0
TRACON PHARMACEUTICALS INC COM NEW 89237H209 128 75,000 SH   DFND   75,000 0 0
TRIDENT ACQUISITIONS CORP *W EXP 05/09/202 89615T114 189 1,993,750 SH   DFND   1,993,750 0 0
UNIQURE NV SHS N90064101 23,251 490,000 SH   DFND   490,000 0 0
US ECOLOGY INC *W EXP 10/17/202 91734M111 464 105,350 SH   DFND   105,350 0 0
SELECT SECTOR SPDR TR SBI INT-UTILS 81369Y886 2,992 54,000 SH Put DFND   54,000 0 0
VECTOIQ ACQUISITION CORP *W EXP 05/11/202 92243N111 975 500,000 SH   DFND   500,000 0 0
VECTOIQ ACQUISITION CORP COM 92243N103 2,394 225,000 SH   DFND   225,000 0 0
VENTAS INC COM 92276F100 6,030 225,000 SH   DFND   225,000 0 0
VENTAS INC COM 92276F100 4,020 150,000 SH Call DFND   150,000 0 0
VENTAS INC COM 92276F100 16,080 600,000 SH Put DFND   600,000 0 0
WARRIOR MET COAL INC COM 93627C101 3,134 295,000 SH   DFND   295,000 0 0
WAYFAIR INC CL A 94419L101 12,024 225,000 SH   DFND   225,000 0 0
WELLS FARGO CO NEW COM 949746101 5,166 180,000 SH   DFND   180,000 0 0
WILLIAMS SONOMA INC COM 969904101 1,446 34,000 SH   DFND   34,000 0 0
WORLD ACCEP CORP DEL COM 981419104 1,005 18,400 SH   DFND   18,400 0 0
ZAFGEN INC COM 98885E103 2,025 2,630,368 SH   DFND   2,630,368 0 0
ZOGENIX INC COM NEW 98978L204 2,597 105,000 SH   DFND   105,000 0 0