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 69,552 295,500 SH Put DFND 1 295,500 0 0
ADECOAGRO S A COM L00849106 3,102 300,000 SH   DFND 1 300,000 0 0
ADIENT PLC ORD SHS G0084W101 37,540 477,000 SH   DFND 1 477,000 0 0
ADMA BIOLOGICS INC COM 000899104 3,050 950,000 SH   DFND 1 950,000 0 0
ADVERUM BIOTECHNOLOGIES INC COM 00773U108 1,925 550,000 SH   DFND 1 550,000 0 0
ALDEYRA THERAPEUTICS INC COM 01438T106 6,222 915,000 SH   DFND 1 915,000 0 0
ALNYLAM PHARMACEUTICALS INC COM 02043Q107 25,410 200,000 SH   DFND 1 200,000 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 15,646 1,450,000 SH   DFND 1 1,450,000 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 9,495 880,000 SH Call DFND 1 880,000 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 19,422 1,800,000 SH Put DFND 1 1,800,000 0 0
ANTHERA PHARMACEUTICALS INC COM 03674U300 399 276,809 SH   DFND 1 276,809 0 0
APPLIED GENETIC TECHNOL CORP COM 03820J100 778 216,032 SH   DFND 1 216,032 0 0
ARRAY BIOPHARMA INC COM 04269X105 5,760 450,000 SH   DFND 1 450,000 0 0
ATLANTIC ACQUISITION CORP COM 048206106 1,775 180,000 SH   DFND 1 180,000 0 0
ATLANTIC ACQUISITION CORP RIGHT 02/08/2019 048206304 162 270,000 SH   DFND 1 270,000 0 0
AVEO PHARMACEUTICALS INC COM 053588109 6,975 2,500,000 SH   DFND 1 2,500,000 0 0
BANC OF CALIFORNIA INC COM 05990K106 723 35,000 SH   DFND 1 35,000 0 0
BIG ROCK PARTNERS ACQUISI CO UNIT 11/20/2022 089482202 1,689 165,000 SH   DFND 1 165,000 0 0
BISON CAP ACQUISITION CORP RIGHT 03/20/2019 G1142P138 38 100,000 SH   DFND 1 100,000 0 0
BISON CAP ACQUISITION CORP *W EXP 06/20/202 G1142P112 18 50,000 SH   DFND 1 50,000 0 0
BLACK RIDGE ACQUISITION CORP COM 09216T107 1,930 200,000 SH   DFND 1 200,000 0 0
BLACK RIDGE ACQUISITION CORP RIGHT 07/10/2019 09216T123 56 200,000 SH   DFND 1 200,000 0 0
BLACK RIDGE ACQUISITION CORP *W EXP 07/10/202 09216T115 231 700,000 SH   DFND 1 700,000 0 0
BLACKSTONE GROUP L P COM UNIT LTD 09253U108 5,443 170,000 SH   DFND 1 170,000 0 0
CARS COM INC COM 14575E105 12,185 422,500 SH   DFND 1 422,500 0 0
CARVANA CO CL A 146869102 14,017 733,104 SH   DFND 1 733,104 0 0
CARVANA CO CL A 146869102 7,757 405,700 SH Call DFND 1 405,700 0 0
CISION LTD *W EXP 06/22/202 G1992S117 2,992 1,100,000 SH   DFND 1 1,100,000 0 0
CATERPILLAR INC DEL COM 149123101 11,819 75,000 SH Put DFND 1 75,000 0 0
CM SEVEN STAR ACQUISITION CO SHS G2345N102 1,689 175,000 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 25 87,500 SH   DFND 1 87,500 0 0
COBALT INTL ENERGY INC NOTE 2.625%12/0 19075FAA4 2,725 10,000,000 PRN   DFND 1 10,000,000 0 0
COBALT INTL ENERGY INC NOTE 3.125% 5/1 19075FAB2 5,450 20,000,000 PRN   DFND 1 20,000,000 0 0
COBALT INTL ENERGY INC COM NEW 19075F304 391 422,236 SH   DFND 1 422,236 0 0
COCA COLA CO COM 191216100 52,189 1,137,500 SH Put DFND 1 1,137,500 0 0
CONSTELLATION ALPHA CAP CORP SHS G2379F108 1,755 180,000 SH   DFND 1 180,000 0 0
CONSTELLATION ALPHA CAP CORP RIGHT 99/99/9999 G2379F132 56 180,000 SH   DFND 1 180,000 0 0
CONSTELLATION ALPHA CAP CORP *W EXP 03/23/202 G2379F116 84 380,000 SH   DFND 1 380,000 0 0
CONTRAFECT CORP COM 212326102 2,643 2,617,004 SH   DFND 1 2,617,004 0 0
CRESUD S A C I F Y A SPONSORED ADR 226406106 20,108 910,286 SH   DFND 1 910,286 0 0
DHX MEDIA LTD SHS VAR VTG 252406608 780 1,000,000 PRN   DFND 1 1,000,000 0 0
DIANA SHIPPING INC COM Y2066G104 1,784 438,364 SH   DFND 1 438,364 0 0
DICERNA PHARMACEUTICALS INC COM 253031108 4,967 550,000 SH   DFND 1 550,000 0 0
DRAPER OAKWOOD TECHNOLOGY RIGHT 09/19/2018 26146L129 90 180,000 SH   DFND 1 180,000 0 0
DRAPER OAKWOOD TECHNOLOGY *W EXP 09/19/202 26146L111 60 90,000 SH   DFND 1 90,000 0 0
EASTERLY ACQUISITION CORP *W EXP 07/29/202 27616L110 500 839,668 SH   DFND 1 839,668 0 0
ECHOSTAR CORP CL A 278768106 4,792 80,000 SH   DFND 1 80,000 0 0
EDISON INTL COM 281020107 6,324 100,000 SH   DFND 1 100,000 0 0
ELECTRUM SPL ACQUISITION COR *W EXP 99/99/999 G3105C112 397 981,400 SH   DFND 1 981,400 0 0
ENERGY RECOVERY INC COM 29270J100 6,563 750,000 SH   DFND 1 750,000 0 0
ENOVA INTL INC COM 29357K103 12,817 843,200 SH   DFND 1 843,200 0 0
ESTRE AMBIENTAL INC *W EXP 12/21/202 G3206V118 150 200,000 SH   DFND 1 200,000 0 0
ETSY INC COM 29786A106 14,315 700,000 SH   DFND 1 700,000 0 0
EVOKE PHARMA INC COM 30049G104 258 114,300 SH   DFND 1 114,300 0 0
FACEBOOK INC CL A 30303M102 8,823 50,000 SH Put DFND 1 50,000 0 0
FATE THERAPEUTICS INC COM 31189P102 5,217 853,800 SH   DFND 1 853,800 0 0
FENNEC PHARMACEUTICALS INC COM 31447P100 8,689 867,185 SH   DFND 1 867,185 0 0
FERRARI N V COM N3167Y103 2,621 25,000 SH Put DFND 1 25,000 0 0
FOGO DE CHAO INC COM 344177100 11,020 950,000 SH   DFND 1 950,000 0 0
FORUM MERGER CORP COM CL A 34985B103 4,491 450,000 SH   DFND 1 450,000 0 0
FORUM MERGER CORP RIGHT 06/01/2019 34985B129 220 334,000 SH   DFND 1 334,000 0 0
FORUM MERGER CORP *W EXP 06/01/202 34985B111 171 251,806 SH   DFND 1 251,806 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 5,941 649,295 SH   DFND 1 649,295 0 0
GENCO SHIPPING & TRADING LTD SHS Y2685T131 908 68,200 SH   DFND 1 68,200 0 0
GIGCAPITAL INC UNIT 03/06/2025 37518N205 2,000 200,000 SH   DFND 1 200,000 0 0
GREIF INC CL B 397624206 762 10,993 SH   DFND 1 10,993 0 0
GRUBHUB INC COM 400110102 7,180 100,000 SH Put DFND 1 100,000 0 0
HAYMAKER ACQUISITION CORP COM CLASS A 420870107 5,736 600,000 SH   DFND 1 600,000 0 0
HAYMAKER ACQUISITION CORP *W EXP 10/27/202 420870115 240 300,000 SH   DFND 1 300,000 0 0
HENNESSY CAP ACQUSTON CORP I *W EXP 06/15/202 42588L113 370 437,500 SH   DFND 1 437,500 0 0
HERBALIFE LTD COM USD SHS G4412G101 23,702 350,000 SH Put DFND 1 350,000 0 0
HOSTESS BRANDS INC *W EXP 11/04/202 44109J114 3,912 1,679,000 SH   DFND 1 1,679,000 0 0
I AM CAP ACQUISITION CO RIGHT 05/22/2019 45074Q124 60 200,000 SH   DFND 1 200,000 0 0
I AM CAP ACQUISITION CO *W EXP 05/22/202 45074Q116 231 700,000 SH   DFND 1 700,000 0 0
IFRESH INC COM 449538107 223 17,158 SH   DFND 1 17,158 0 0
IMMUNOMEDICS INC COM 452907108 1,293 80,000 SH   DFND 1 80,000 0 0
INDUSTREA ACQUISITION CORP CL A 45579J104 9,750 1,000,000 SH   DFND 1 1,000,000 0 0
INDUSTREA ACQUISITION CORP *W EXP 08/01/202 45579J112 520 1,234,606 SH   DFND 1 1,234,606 0 0
INSPIRED ENTMT INC COM 45782N108 2,922 298,209 SH   DFND 1 298,209 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 7,671 50,000 SH Put DFND 1 50,000 0 0
IOVANCE BIOTHERAPEUTICS INC COM 462260100 2,400 300,000 SH   DFND 1 300,000 0 0
IRSA INVERSIONES Y REP S A GLOBL DEP RCPT 450047204 11,988 405,000 SH   DFND 1 405,000 0 0
JPMORGAN CHASE & CO ALERIAN ML ETN 46625H365 2,198 80,000 SH Call DFND 1 80,000 0 0
JOHNSON & JOHNSON COM 478160104 17,465 125,000 SH Put DFND 1 125,000 0 0
KELLOGG CO COM 487836108 13,596 200,000 SH Put DFND 1 200,000 0 0
KKR & CO L P DEL COM UNITS 48248M102 21,060 1,000,000 SH   DFND 1 1,000,000 0 0
LEGACY ACQUISITION CORP UNIT 05/31/2024 524643202 7,448 750,000 SH   DFND 1 750,000 0 0
LENDINGCLUB CORP COM 52603A109 1,859 450,000 SH Put DFND 1 450,000 0 0
LIBERTY TRIPADVISOR HLDGS IN COM SER A 531465102 1,885 200,000 SH   DFND 1 200,000 0 0
MARCHEX INC CL B 56624R108 646 200,137 SH   DFND 1 200,137 0 0
MARINUS PHARMACEUTICALS INC COM 56854Q101 4,488 550,000 SH   DFND 1 550,000 0 0
MEDICINES CO COM 584688105 1,367 50,000 SH   DFND 1 50,000 0 0
MICRON TECHNOLOGY INC COM 595112103 13,570 330,000 SH   DFND 1 330,000 0 0
MODERN MEDIA ACQUISITION RIGHT 99/99/9999 60765P129 390 1,000,000 SH   DFND 1 1,000,000 0 0
MODERN MEDIA ACQUISITION *W EXP 05/17/202 60765P111 275 500,000 SH   DFND 1 500,000 0 0
MONDELEZ INTL INC CL A 609207105 11,556 270,000 SH Put DFND 1 270,000 0 0
NATIONAL ENERGY SERVICES REU SHS G6375R107 565 56,750 SH   DFND 1 56,750 0 0
NATIONAL ENERGY SERVICES REU *W EXP 05/05/202 G6375R115 595 725,000 SH   DFND 1 725,000 0 0
NATIONAL OILWELL VARCO INC COM 637071101 10,626 295,000 SH   DFND 1 295,000 0 0
NAVIOS MARITIME HOLDINGS INC COM Y62196103 360 300,000 SH   DFND 1 300,000 0 0
NETFLIX INC COM 64110L106 38,392 200,000 SH Put DFND 1 200,000 0 0
NEXEO SOLUTIONS INC *W EXP 06/09/202 65342H110 530 850,000 SH   DFND 1 850,000 0 0
NEW YORK REIT INC COM 64976L109 23,580 6,000,000 SH   DFND 1 6,000,000 0 0
NII HLDGS INC COM PAR 62913F508 5,376 12,671,154 SH   DFND 1 12,671,154 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 923 375,000 SH   DFND 1 375,000 0 0
ON DECK CAP INC COM 682163100 11,296 1,967,900 SH   DFND 1 1,967,900 0 0
ONCONOVA THERAPEUTICS INC COM NEW 68232V306 697 464,934 SH   DFND 1 464,934 0 0
ORACLE CORP COM 68389X105 3,546 75,000 SH Put DFND 1 75,000 0 0
OSPREY ENERGY ACQUISITION CO CL A COM 688397108 2,400 250,000 SH   DFND 1 250,000 0 0
OSPREY ENERGY ACQUISITION CO *W EXP 07/21/202 688397116 88 125,000 SH   DFND 1 125,000 0 0
OTONOMY INC COM 68906L105 3,053 550,000 SH   DFND 1 550,000 0 0
PEABODY ENERGY CORP NEW COM 704551100 7,874 200,000 SH   DFND 1 200,000 0 0
PEABODY ENERGY CORP NEW 8.5% PFD CONV A 704551407 8,566 115,555 SH   DFND 1 115,555 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 63 115,000 SH   DFND 1 115,000 0 0
PEPSICO INC COM 713448108 5,996 50,000 SH Put DFND 1 50,000 0 0
PG&E CORP COM 69331C108 33,623 750,000 SH   DFND 1 750,000 0 0
PLX PHARMA INC COM 72942A107 859 124,557 SH   DFND 1 124,557 0 0
PROCTER AND GAMBLE CO COM 742718109 9,188 100,000 SH Put DFND 1 100,000 0 0
REDHILL BIOPHARMA LTD SPONSORED ADS 757468103 5,136 999,232 SH   DFND 1 999,232 0 0
REGENXBIO INC COM 75901B107 831 25,000 SH   DFND 1 25,000 0 0
SEADRILL LIMITED SHS G7945E105 1,180 5,100,000 SH   DFND 1 5,100,000 0 0
SEADRILL LIMITED SHS G7945E105 1,593 6,924,100 SH Put DFND 1 6,924,100 0 0
SELECT SECTOR SPDR TR SBI CONS STPLS 81369Y308 34,134 600,000 SH Put DFND 1 600,000 0 0
SELECT SECTOR SPDR TR SBI INT-UTILS 81369Y886 26,340 500,000 SH Put DFND 1 500,000 0 0
SPDR SERIES TRUST S&P RETAIL ETF 78464A714 22,590 500,000 SH Put DFND 1 500,000 0 0
SEQUENTIAL BRNDS GROUP INC N COM 81734P107 5,965 3,351,400 SH   DFND 1 3,351,400 0 0
SIERRA ONCOLOGY INC COM 82640U107 3,438 921,774 SH   DFND 1 921,774 0 0
SILVER RUN ACQUISITION *W EXP 03/28/202 82812A111 149 100,000 SH   DFND 1 100,000 0 0
SIMPLY GOOD FOODS CO *W EXP 07/07/202 82900L110 3,112 800,000 SH   DFND 1 800,000 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 1,519 844,112 SH   DFND 1 844,112 0 0
STRONGBRIDGE BIOPHARMA PLC SHS USD G85347105 1,450 200,000 SH   DFND 1 200,000 0 0
SYNTHETIC BIOLOGICS INC COM 87164U102 762 1,500,000 SH   DFND 1 1,500,000 0 0
TARGET CORP COM 87612E106 1,958 30,000 SH Put DFND 1 30,000 0 0
TESLA INC COM 88160R101 125,785 404,000 SH Put DFND 1 404,000 0 0
TIDEWATER INC NEW *W EXP 07/31/202 88642R117 290 131,275 SH   DFND 1 131,275 0 0
TIME WARNER INC COM NEW 887317303 18,294 200,000 SH   DFND 1 200,000 0 0
TRACON PHARMACEUTICALS INC COM NEW 89237H100 4,992 1,490,000 SH   DFND 1 1,490,000 0 0
TRIPADVISOR INC COM 896945201 8,925 259,000 SH   DFND 1 259,000 0 0
TRIVAGO N V SPON ADS A SHS 89686D105 15,863 2,319,208 SH   DFND 1 2,319,208 0 0
TRIVAGO N V SPON ADS A SHS 89686D105 2,052 300,000 SH Put DFND 1 300,000 0 0
TRUECAR INC COM 89785L107 18,603 1,661,015 SH   DFND 1 1,661,015 0 0
UNIQURE NV SHS N90064101 20,570 1,050,000 SH   DFND 1 1,050,000 0 0
WAL-MART STORES INC COM 931142103 14,813 150,000 SH Put DFND 1 150,000 0 0
WARRIOR MET COAL INC COM 93627C101 12,222 485,960 SH   DFND 1 485,960 0 0
WESTERN UN CO COM 959802109 4,753 250,000 SH Put DFND 1 250,000 0 0
WILLSCOT CORP *W EXP 09/10/202 971375118 3,178 2,207,000 SH   DFND 1 2,207,000 0 0
WMIH CORP COM 92936P100 587 690,826 SH   DFND 1 690,826 0 0
WRIGHT MED GROUP N V RIGHT 03/01/2019 N96617126 1,237 819,181 SH   DFND 1 819,181 0 0
XENIA HOTELS & RESORTS INC COM 984017103 15,653 725,000 SH   DFND 1 725,000 0 0
ZAFGEN INC COM 98885E103 6,006 1,300,000 SH   DFND 1 1,300,000 0 0