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
AK STL HLDG CORP OPTION 001547108 506 213,500 SH Call DFND 213,500 0 0
AMCI ACQUISITION CORP WARRANT 00165R119 409 1,279,564 SH   DFND 1,279,564 0 0
ABEONA THERAPEUTICS INC WARRANT 00289Y115 255 250,000 SH   DFND 250,000 0 0
ACAMAR PARTNERS ACQSITION CO UNIT 004285201 10,167 1,017,132 SH   DFND 1,017,132 0 0
ACCELERATE DIAGNOSTICS INC BOND 00430HAB8 6,469 7,650,000 PRN   DFND 0 0 0
AEMETIS INC COMMON 00770K202 0 70,768 SH   DFND 70,768 0 0
AGROFRESH SOLUTIONS WARRANT 00856G117 52 3,425,000 SH   DFND 3,425,000 0 0
ALBEMARLE CORP OPTION 012653101 2,816 40,000 SH Call DFND 40,000 0 0
ALIBABA GROUP HLDG LTD ADR 01609W102 1,939 11,445 SH   DFND 11,445 0 0
ALIBABA GROUP HLDG LTD OPTION 01609W102 5,592 33,000 SH Call DFND 33,000 0 0
ALPHABET INC COMMON 02079K305 13,251 12,238 SH   DFND 12,238 0 0
ALTA MESA RES INC COMMON 02133L109 117 800,000 SH   DFND 800,000 0 0
ALTABA INC COMMON 021346101 340 4,900 SH   DFND 4,900 0 0
ASHLAND GLOBAL HLDGS INC OPTION 044186104 15,994 200,000 SH Put DFND 200,000 0 0
AVAYA HLDGS CORP COMMON 05351X101 10,503 881,824 SH   DFND 881,824 0 0
BAIDU INC OPTION 056752108 2,348 20,000 SH Call DFND 20,000 0 0
BARCLAYS BK PLC OPTION 06746P621 6,500 250,000 SH Call DFND 250,000 0 0
BARCLAYS BK PLC OPTION 06746P621 22,750 875,000 SH Put DFND 875,000 0 0
CF FIN ACQUISITION CORP WARRANT 12528N115 454 789,858 SH   DFND 789,858 0 0
CARDINAL HEALTH INC COMMON 14149Y108 1,785 37,900 SH   DFND 37,900 0 0
CARDINAL HEALTH INC OPTION 14149Y108 6,123 130,000 SH Put DFND 130,000 0 0
CARNIVAL PLC ADR 14365C103 5,953 131,500 SH   DFND 131,500 0 0
CARVANA CO OPTION 146869102 17,525 280,000 SH Put DFND 280,000 0 0
CENTRAL GARDEN & PET CO COMMON 153527205 8,581 348,234 SH   DFND 348,234 0 0
CHESAPEAKE ENERGY CORP BOND 165167CY1 3,193 4,000,000 PRN   DFND 0 0 0
COGNIZANT TECHNOLOGY SOLUTIO COMMON 192446102 355 5,600 SH   DFND 5,600 0 0
CONCRETE PUMPING HLDGS INC COMMON 206704108 6,218 1,214,400 SH   DFND 1,214,400 0 0
CONTURA ENERGY INC COMMON 21241B100 70,267 1,353,910 SH   DFND 1,353,910 0 0
CRESCENT ACQUISITION CORP WARRANT 22564L113 228 500,000 SH   DFND 500,000 0 0
DFB HEALTHCARE ACQUISTION CO COMMON 23291E109 20,250 1,999,998 SH   DFND 1,999,998 0 0
DFB HEALTHCARE ACQUISTION CO WARRANT 23291E117 734 666,666 SH   DFND 666,666 0 0
DBX ETF TR OPTION 233051879 11,264 400,000 SH Call DFND 400,000 0 0
DEAN FOODS CO NEW COMMON 242370203 191 207,044 SH   DFND 207,044 0 0
DEAN FOODS CO NEW OPTION 242370203 210 226,700 SH Put DFND 226,700 0 0
ASSERTIO THERAPEUTICS INC BOND 249908AA2 38,770 53,500,000 PRN   DFND 0 0 0
DIAMONDPEAK HLDGS COR WARRANT 25280H118 374 481,500 SH   DFND 481,500 0 0
DOLPHIN ENTMT INC WARRANT 25686H118 6 110,000 SH   DFND 110,000 0 0
EMERSON ELEC CO OPTION 291011104 1,268 19,000 SH Call DFND 19,000 0 0
EMERSON ELEC CO OPTION 291011104 1,835 27,500 SH Put DFND 27,500 0 0
FAR PT ACQUISITION CORP WARRANT 30734W117 573 449,231 SH   DFND 449,231 0 0
FINTECH ACQUISITION CORP III COMMON 31811A101 19,387 1,968,198 SH   DFND 1,968,198 0 0
FINTECH ACQUISITION CORP III WARRANT 31811A119 1,411 989,865 SH   DFND 989,865 0 0
FORUM MERGER II CORP WARRANT 34986F111 475 748,499 SH   DFND 748,499 0 0
GEO GROUP INC NEW OPTION 36162J106 10,110 481,200 SH Put DFND 481,200 0 0
GS ACQUISITION HLDGS CORP WARRANT 36255F110 650 509,670 SH   DFND 509,670 0 0
GLOBAL BLOOD THERAPEUTICS IN COMMON 37890U108 4,208 80,000 SH   DFND 80,000 0 0
GORES HOLDINGS III INC WARRANT 38286G117 561 393,400 SH   DFND 393,400 0 0
GORES METROPOULOS INC WARRANT 382872117 320 250,000 SH   DFND 250,000 0 0
GRAF INDL CORP WARRANT 384278115 750 2,000,000 SH   DFND 2,000,000 0 0
GREEN PLAINS INC COMMON 393222104 3,173 294,347 SH   DFND 294,347 0 0
HOSTESS BRANDS INC WARRANT 44109J114 16,588 8,800,000 SH   DFND 8,800,000 0 0
IAC INTERACTIVECORP COMMON 44919P508 5,930 27,259 SH   DFND 27,259 0 0
IPG PHOTONICS CORP COMMON 44980X109 279 1,804 SH   DFND 1,804 0 0
ISTAR INC OPTION 45031U101 1,381 111,200 SH Call DFND 111,200 0 0
ISTAR INC OPTION 45031U101 133 10,700 SH Put DFND 10,700 0 0
INFINERA CORPORATION BOND 45667GAC7 11,550 17,000,000 PRN   DFND 0 0 0
INSEEGO CORP BOND 45782BAA2 31,988 25,466,000 PRN   DFND 0 0 0
INTERCEPT PHARMACEUTICALS IN BOND 45845PAB4 19,894 20,000,000 PRN   DFND 0 0 0
INTERCONTINENTAL EXCHANGE IN COMMON 45866F104 343 4,000 SH   DFND 4,000 0 0
INVACARE CORP BOND 461203AF8 14,344 17,650,000 PRN   DFND 0 0 0
INVACARE CORP BOND 461203AH4 35,278 47,503,000 PRN   DFND 0 0 0
INTREXON CORP OPTION 46122T102 682 89,000 SH Put DFND 89,000 0 0
ISHARES TR COMMON 464287234 3,068 71,500 SH   DFND 71,500 0 0
ISHARES TR OPTION 464287234 30,037 700,000 SH Put DFND 700,000 0 0
ISHARES TR COMMON 464287432 664 5,000 SH   DFND 5,000 0 0
ISHARES TR OPTION 464287440 11,002 100,000 SH Call DFND 100,000 0 0
ISHARES TR OPTION 464287440 14,082 128,000 SH Put DFND 128,000 0 0
ISHARES TR OPTION 464287655 46,651 300,000 SH Put DFND 300,000 0 0
ISHARES TR OPTION 464288513 43,590 500,000 SH Put DFND 500,000 0 0
KLA-TENCOR CORP COMMON 482480100 922 7,800 SH   DFND 7,800 0 0
KT CORP ADR 48268K101 2,427 196,200 SH   DFND 196,200 0 0
LF CAP ACQUISITION CORP WARRANT 50200K116 315 1,000,000 SH   DFND 1,000,000 0 0
LENNAR CORP COMMON 526057302 3,122 81,067 SH   DFND 81,067 0 0
LINDBLAD EXPEDITIONS HLDGS I WARRANT 535219117 24,602 3,559,942 SH   DFND 3,559,942 0 0
LOUISIANA PAC CORP OPTION 546347105 12,420 473,700 SH Put DFND 473,700 0 0
M D C HLDGS INC OPTION 552676108 12,239 373,400 SH Put DFND 373,400 0 0
MKS INSTRUMENT INC COMMON 55306N104 3,116 40,000 SH   DFND 40,000 0 0
MARATHON PETE CORP OPTION 56585A102 2,794 50,000 SH Call DFND 50,000 0 0
MEGALITH FINL ACQUISITION CO WARRANT 58518F117 177 600,000 SH   DFND 600,000 0 0
MONOCLE ACQUISITION CORP WARRANT 609754114 247 727,200 SH   DFND 727,200 0 0
MOSAIC ACQUISITION CORP COMMON 61946M100 28,037 2,750,000 SH   DFND 2,750,000 0 0
MOSAIC ACQUISITION CORP WARRANT 61946M118 926 950,000 SH   DFND 950,000 0 0
NEBULA ACQUISITION CORP COMMON 629076100 13,228 1,309,021 SH   DFND 1,309,021 0 0
NEBULA ACQUISITION CORP WARRANT 629076118 444 433,333 SH   DFND 433,333 0 0
NII HLDGS INC COMMON 62913F508 1,014 600,000 SH   DFND 600,000 0 0
NANTHEALTH INC COMMON 630104107 331 628,972 SH   DFND 628,972 0 0
NANTHEALTH INC BOND 630104AB3 22,150 34,250,000 PRN   DFND 0 0 0
NOVAVAX INC BOND 670002AB0 12,847 32,118,000 PRN   DFND 0 0 0
NOVELION THERAPEUTICS INC COMMON 67001K202 716 918,342 SH   DFND 918,342 0 0
O REILLY AUTOMOTIVE INC NEW COMMON 67103H107 739 2,000 SH   DFND 2,000 0 0
OASIS PETE INC NEW BOND 674215AJ7 15,595 17,000,000 PRN   DFND 0 0 0
OPKO HEALTH INC COMMON 68375N103 1,155 473,198 SH   DFND 473,198 0 0
OPKO HEALTH INC BOND 68375NAD5 17,469 20,000,000 PRN   DFND 0 0 0
PARATEK PHARMACEUTICALS INC BOND 699374AB0 29,160 41,325,000 PRN   DFND 0 0 0
PARKER DRILLING CO COMMON 701081507 29,205 1,440,085 SH   DFND 1,440,085 0 0
PLUG POWER INC BOND 72919PAB9 16,838 15,000,000 PRN   DFND 0 0 0
PROTALIX BIOTHERAPEUTICS INC BOND 74365AAD3 17,927 19,407,000 PRN   DFND 0 0 0
PULTE GROUP INC OPTION 745867101 25,296 800,000 SH Put DFND 800,000 0 0
RMG ACQUISITION CORP WARRANT 749641114 741 792,300 SH   DFND 792,300 0 0
RANPAK HLDGS CORP COMMON 75321W103 2,544 287,505 SH   DFND 287,505 0 0
RANPAK HLDGS CORP WARRANT 75321W111 1,701 1,355,000 SH   DFND 1,355,000 0 0
RETROPHIN INC BOND 761299AB2 26,118 29,000,000 PRN   DFND 0 0 0
SPDR S&P 500 ETF TR COMMON 78462F103 5,743 19,600 SH   DFND 19,600 0 0
SPDR S&P 500 ETF TR OPTION 78462F103 43,950 150,000 SH Put DFND 150,000 0 0
SPDR GOLD TRUST OPTION 78463V107 39,960 300,000 SH Put DFND 300,000 0 0
SPDR SERIES TRUST COMMON 78464A730 4,905 180,000 SH   DFND 180,000 0 0
SPDR SERIES TRUST OPTION 78464A730 20,438 750,000 SH Call DFND 750,000 0 0
SPDR SERIES TRUST OPTION 78464A730 12,263 450,000 SH Put DFND 450,000 0 0
SPDR SERIES TRUST OPTION 78464A870 17,542 200,000 SH Put DFND 200,000 0 0
SAEXPLORATION HLDGS INC COMMON 78636X873 962 267,171 SH   DFND 267,171 0 0
SANOFI COMMON 80105N113 2,000 3,828,784 SH   DFND 3,828,785 0 0
SENSEONICS HLDGS INC BOND 81727UAA3 19,404 19,000,000 PRN   DFND 0 0 0
SENTINEL ENERGY SVCS INC WARRANT 81728P113 1,917 2,996,000 SH   DFND 2,996,000 0 0
SPARTAN ENERGY ACQUISITON CO WARRANT 846784122 849 998,600 SH   DFND 998,600 0 0
SPRINT CORPORATION OPTION 85207U105 1,713 260,700 SH Call DFND 260,700 0 0
SPRINT CORPORATION OPTION 85207U105 1,643 250,000 SH Put DFND 250,000 0 0
SQUARE INC COMMON 852234103 508 7,000 SH   DFND 7,000 0 0
TAKE-TWO INTERACTIVE SOFTWAR COMMON 874054109 715 6,300 SH   DFND 6,300 0 0
TARGET HOSPITALITY CORP WARRANT 87615L115 2,269 1,190,944 SH   DFND 1,190,944 0 0
TELADOC HEALTH INC COMMON 87918A105 963 14,500 SH   DFND 14,500 0 0
TELIGENT INC NEW BOND 87960WAA2 9,630 18,000,000 PRN   DFND 0 0 0
TESLA INC COMMON 88160R101 8,182 36,617 SH   DFND 36,617 0 0
TESLA INC BOND 88160RAG6 22,098 22,500,000 PRN   DFND 0 0 0
TORTOISE ACQUISITION CORP WARRANT 89154L118 570 875,000 SH   DFND 875,000 0 0
TRANSLATE BIO INC COMMON 89374L104 3,867 306,230 SH   DFND 306,230 0 0
TRINE ACQUISITION CORP WARRANT 89628U116 501 681,173 SH   DFND 681,173 0 0
TRINITY BIOTECH INVT LTD BOND 89643QAB4 20,480 26,425,000 PRN   DFND 0 0 0
TRINITY MERGER CORP WARRANT 89653L114 168 525,000 SH   DFND 525,000 0 0
UNISYS CORP COMMON 909214306 1,046 107,623 SH   DFND 107,623 0 0
UNITED MICROELECTRONICS CORP ADR 910873405 548 247,998 SH   DFND 247,998 0 0
VECTOIQ ACQUISITION CORP WARRANT 92243N111 424 893,540 SH   DFND 893,540 0 0
VEONEER INCORPORATED BOND 92336XAA7 13,551 13,075,000 PRN   DFND 0 0 0
VERASTEM INC BOND 92337CAA2 12,260 22,625,000 PRN   DFND 0 0 0
VIASAT INC OPTION 92552V100 26,129 323,300 SH Put DFND 323,300 0 0
WESTERN DIGITAL CORP OPTION 958102105 15,454 325,000 SH Call DFND 325,000 0 0
WESTLAKE CHEM CORP OPTION 960413102 3,473 50,000 SH Call DFND 50,000 0 0
WISDOMTREE TR OPTION 97717W422 375 14,400 SH Put DFND 14,400 0 0
WPX ENERGY INC COMMON 98212B103 326 28,300 SH   DFND 28,300 0 0
XEROX CORP OPTION 984121608 11,986 338,500 SH Put DFND 338,500 0 0
ZILLOW GROUP INC COMMON 98954M101 5,307 115,969 SH   DFND 115,969 0 0
ZIONS BANCORPORATION N A OPTION 989701107 29,915 650,600 SH Put DFND 650,600 0 0
ZIONS BANCORPORATION N A WARRANT 989701115 69,137 5,093,000 SH   DFND 5,093,000 0 0
ACT II GLOBAL ACQUISITION CO WARRANT G0080J120 592 889,984 SH   DFND 889,984 0 0
BIOHAVEN PHARMACTL HLDG CO L COMMON G11196105 1,095 25,000 SH   DFND 25,000 0 0
CAPITOL INVT CORP IV COMMON G18920101 15,711 1,537,908 SH   DFND 1,537,908 0 0
CAPITOL INVT CORP IV WARRANT G18920127 585 429,800 SH   DFND 429,800 0 0
CLARIVATE ANALYTICS PLC WARRANT G21810117 3,792 800,000 SH   DFND 800,000 0 0
COLLIER CREEK HOLDINGS WARRANT G22707114 528 400,000 SH   DFND 400,000 0 0
ENSCO ROWAN PLC COMMON G3166L100 245 28,700 SH   DFND 28,700 0 0
ENSCO ROWAN PLC OPTION G3166L100 213 25,000 SH Put DFND 25,000 0 0
ESTRE AMBIENTAL INC WARRANT G3206V118 110 3,625,000 SH   DFND 3,625,000 0 0
LEO HOLDINGS CORP COMMON G5463L105 8,362 815,000 SH   DFND 815,000 0 0
LEO HOLDINGS CORP WARRANT G5463L113 241 195,443 SH   DFND 195,443 0 0
NATIONAL ENERGY SERVICES REU WARRANT G6375R115 17 25,300 SH   DFND 25,300 0 0
NEW FRONTIER CORP WARRANT G6485P124 520 800,000 SH   DFND 800,000 0 0
QUOTIENT LTD COMMON G73268107 18,498 1,978,355 SH   DFND 1,978,355 0 0
REPLAY ACQUISITION CORP WARRANT G75130115 422 620,326 SH   DFND 620,326 0 0
SINA CORP OPTION G81477104 3,019 70,000 SH Call DFND 70,000 0 0
SOCIAL CAP HEDOSOPHIA HLDGS COMMON G8250R103 15,638 1,500,000 SH   DFND 1,500,000 0 0
SOCIAL CAP HEDOSOPHIA HLDGS WARRANT G8250R129 1,599 1,207,100 SH   DFND 1,207,100 0 0
THUNDER BRIDGE ACQUISITION L COMMON G8857R100 7,244 694,882 SH   DFND 694,882 0 0
TPG PACE HLDGS CORP WARRANT G89827110 821 490,100 SH   DFND 490,100 0 0
TPG PACE HLDGS CORP COMMON G89827128 16,859 1,622,601 SH   DFND 1,622,601 0 0
LIBERTY LATIN AMERICA LTD COMMON G9001E128 1,566 91,100 SH   DFND 91,100 0 0
INTELSAT S A COMMON L5140P101 2,739 140,800 SH   DFND 140,800 0 0
PACIFIC DRILLING SA LUXEMBOU COMMON L7257P205 26,991 2,142,124 SH   DFND 2,142,124 0 0