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
Ablynx NV SPONSORED ADR 00372Y105 5,893 108,002 SH   SOLE   108,002 0 0
Ablynx NV SPONSORED ADR 00372Y105 104 1,913 SH   OTR 1 1,913 0 0
Aetna Inc. NEW COM 00817Y108 91,361 540,599 SH   SOLE   540,599 0 0
Aetna Inc. NEW COM 00817Y108 2,329 13,780 SH   OTR 1 13,780 0 0
Almost Family Inc. COM 020409108 1,815 32,415 SH   SOLE   32,415 0 0
Almost Family Inc. COM 020409108 83 1,476 SH   OTR 1 1,476 0 0
Alta Mesa Resources, Inc. CL A 02133L109 425 53,150 SH   SOLE   53,150 0 0
Alta Mesa Resources, Inc. CL A 02133L109 94 11,708 SH   OTR 1 11,708 0 0
Altaba Inc. COM 021346101 319,024 4,308,806 SH   SOLE   4,308,806 0 0
Altaba Inc. COM 021346101 6,427 86,810 SH   OTR 1 86,810 0 0
Altice USA INC CL A 02156K103 974 52,700 SH Put SOLE   52,700 0 0
Altice USA INC CL A 02156K103 142 7,700 SH Put OTR 1 7,700 0 0
Altice USA INC CL A 02156K103 9,449 511,300 SH Put SOLE   511,300 0 0
Altice USA INC CL A 02156K103 1,443 78,100 SH Put OTR 1 78,100 0 0
Apollo Senior Floating Rate Fund Inc. COM 037636107 1,310 77,852 SH   SOLE   77,852 0 0
Apollo Tactical Income Fund Inc. COM 037638103 32 2,019 SH   SOLE   2,019 0 0
Archrock Partners, L.P. COM UNITS REPSTG 03957U100 2,163 177,023 SH   SOLE   177,023 0 0
Ares Dynamic Credit Allocation Fund COM 04014F102 250 15,388 SH   SOLE   15,388 0 0
Avista Healthcare Public Acquisition Corp CL A G0726L125 10,241 1,026,107 SH   SOLE   1,026,107 0 0
Avista Healthcare Public Acquisition Corp CL A G0726L125 268 26,893 SH   OTR 1 26,893 0 0
Big Rock Partners Acquisition Corp. COM 089482103 2,161 219,998 SH   SOLE   219,998 0 0
Big Rock Partners Acquisition Corp. COM 089482103 243 24,760 SH   OTR 1 24,760 0 0
Big Rock Partners Acquisition Corp. *W EXP 12/01/202 089482111 41 109,999 SH   SOLE   109,999 0 0
Big Rock Partners Acquisition Corp. *W EXP 12/01/202 089482111 5 12,380 SH   OTR 1 12,380 0 0
Bison Capital Acquisition Corp. ORD SHS G1142P104 1,988 199,998 SH   SOLE   199,998 0 0
Bison Capital Acquisition Corp. *W EXP 06/20/202 G1142P112 40 99,999 SH   SOLE   99,999 0 0
Black Ridge Acquisition Corp. COM 09216T107 4,457 460,000 SH   SOLE   460,000 0 0
Black Ridge Acquisition Corp. *W EXP 07/10/202 09216T115 179 460,000 SH   SOLE   460,000 0 0
Blackrock Debt Strategies Fund, Inc. COM NEW 09255R202 3,819 328,660 SH   SOLE   328,660 0 0
Blackrock Fltg Rate Inc. Strategies Fund COM 09255X100 965 66,381 SH   SOLE   66,381 0 0
Borqs Technologies Inc. SHS G1466B103 14 1,619 SH   SOLE   1,619 0 0
CBS Corporation CL B 124857202 99 1,919 SH   SOLE   1,919 0 0
CBS Corporation CL B 124857202 1,814 35,306 SH   OTR 1 35,306 0 0
CBS Corporation CL B 124857202 8,921 173,600 SH Put SOLE   173,600 0 0
CBS Corporation CL B 124857202 1,403 27,300 SH Put OTR 1 27,300 0 0
CM Seven Star Acquisition Corp. SHS G2345N102 4,626 474,998 SH   SOLE   474,998 0 0
CM Seven Star Acquisition Corp. *W EXP 08/21/202 G2345N110 83 237,499 SH   SOLE   237,499 0 0
CSRA Inc. COM 12650T104 11,011 267,056 SH   SOLE   267,056 0 0
CSRA Inc. COM 12650T104 204 4,946 SH   OTR 1 4,946 0 0
Caesars Entertainment Corporation COM 127686103 1,077 95,751 SH   SOLE   95,751 0 0
Caesars Entertainment Corporation COM 127686103 121 10,792 SH   OTR 1 10,792 0 0
Caesars Entertainment Corporation COM 127686103 1,077 95,700 SH Put SOLE   95,700 0 0
Caesars Entertainment Corporation COM 127686103 120 10,700 SH Put OTR 1 10,700 0 0
Caesars Entertainment Corporation NOTE 5.000%10/0 127686AA1 1,696 969,954 PRN   SOLE   969,954 0 0
Caesars Entertainment Corporation NOTE 5.000%10/0 127686AA1 191 109,345 PRN   OTR 1 109,345 0 0
Cavium Inc. COM 14964U108 34,267 431,681 SH   SOLE   431,681 0 0
Cavium Inc. COM 14964U108 559 7,048 SH   OTR 1 7,048 0 0
CenturyLink, Inc. COM 156700106 4,423 269,173 SH   SOLE   269,173 0 0
CenturyLink, Inc. COM 156700106 174 10,598 SH   OTR 1 10,598 0 0
Constellation Alpha Capital Corp. SHS G2379F108 1,649 167,099 SH   SOLE   167,099 0 0
Constellation Alpha Capital Corp. SHS G2379F108 243 24,601 SH   OTR 1 24,601 0 0
ConvergeOne Holdings, Inc. *W EXP 04/12/202 212481113 451 377,371 SH   SOLE   377,371 0 0
ConvergeOne Holdings, Inc. *W EXP 04/12/202 212481113 1 723 SH   OTR 1 723 0 0
ConvergeOne Holdings, Inc. COM CL A 212481105 10,670 1,154,773 SH   SOLE   1,154,773 0 0
ConvergeOne Holdings, Inc. COM CL A 212481105 880 95,227 SH   OTR 1 95,227 0 0
DXC Technology Company COM 23355L106 3,046 30,300 SH Put SOLE   30,300 0 0
DXC Technology Company COM 23355L106 442 4,400 SH Put OTR 1 4,400 0 0
Discovery Communications NEW COM SER C 25470F302 4,282 219,390 SH   SOLE   219,390 0 0
Discovery Communications NEW COM SER C 25470F302 112 5,717 SH   OTR 1 5,717 0 0
Dover Corp COM 260003108 1,719 17,500 SH Put SOLE   17,500 0 0
Dover Corp COM 260003108 255 2,600 SH Put OTR 1 2,600 0 0
Dover Corp COM 260003108 2,564 26,100 SH Put SOLE   26,100 0 0
Dover Corp COM 260003108 373 3,800 SH Put OTR 1 3,800 0 0
Dover Corp COM 260003108 1,012 10,300 SH Put SOLE   10,300 0 0
Dover Corp COM 260003108 157 1,600 SH Put OTR 1 1,600 0 0
DowDuPont Inc. COM 26078J100 47,682 748,422 SH   SOLE   748,422 0 0
DowDuPont Inc. COM 26078J100 256 4,019 SH   OTR 1 4,019 0 0
DowDuPont Inc. COM 26078J100 36,684 575,800 SH Put SOLE   575,800 0 0
DowDuPont Inc. COM 26078J100 1,427 22,400 SH Put OTR 1 22,400 0 0
DowDuPont Inc. COM 26078J100 6,040 94,800 SH Put SOLE   94,800 0 0
Dr Pepper Snapple Group, Inc. COM 26138E109 88,236 745,359 SH   SOLE   745,359 0 0
Draper Oakwood Technology COM CL A 26146L103 1,479 150,000 SH   SOLE   150,000 0 0
Draper Oakwood Technology *W EXP 09/19/202 26146L111 63 75,000 SH   SOLE   75,000 0 0
Dynegy, Inc. NEW DEL COM 26817R108 4,823 356,696 SH   SOLE   356,696 0 0
Dynegy, Inc. NEW DEL COM 26817R108 77 5,704 SH   OTR 1 5,704 0 0
EQT Corporation COM 26884L109 329 6,925 SH   SOLE   6,925 0 0
EQT Corporation COM 26884L109 50 1,058 SH   OTR 1 1,058 0 0
EQT Corporation COM 26884L109 1,611 33,900 SH Put SOLE   33,900 0 0
EQT Corporation COM 26884L109 242 5,100 SH Put OTR 1 5,100 0 0
EQT Corporation COM 26884L109 1,625 34,200 SH Put SOLE   34,200 0 0
EQT Corporation COM 26884L109 247 5,200 SH Put OTR 1 5,200 0 0
EQT Corporation COM 26884L109 4,608 97,000 SH Put SOLE   97,000 0 0
EQT Corporation COM 26884L109 698 14,700 SH Put OTR 1 14,700 0 0
EQT Corporation COM 26884L109 1,924 40,500 SH Put SOLE   40,500 0 0
EQT Corporation COM 26884L109 295 6,200 SH Put OTR 1 6,200 0 0
EQT Corporation COM 26884L109 1,601 33,700 SH Put SOLE   33,700 0 0
EQT Corporation COM 26884L109 242 5,100 SH Put OTR 1 5,100 0 0
Electrum Special Acquisition Corp. SHS G3105C104 3,114 300,000 SH   SOLE   300,000 0 0
Lilly Eli & Co COM 532457108 7,969 103,000 SH Put SOLE   103,000 0 0
Lilly Eli & Co COM 532457108 1,153 14,900 SH Put OTR 1 14,900 0 0
Express Scripts Holding Company COM 30219G108 4,595 66,517 SH   SOLE   66,517 0 0
Federal Street Acquisition Corp. *W EXP 07/24/202 31421V115 106 88,466 SH   SOLE   88,466 0 0
Federal Street Acquisition Corp. *W EXP 07/24/202 31421V115 5 4,033 SH   OTR 1 4,033 0 0
Federal Street Acquisition Corp. CL A 31421V107 1,722 176,932 SH   SOLE   176,932 0 0
Federal Street Acquisition Corp. CL A 31421V107 79 8,066 SH   OTR 1 8,066 0 0
FinTech Acquisition Corp. II COM 31810G109 2,772 278,866 SH   SOLE   278,866 0 0
FinTech Acquisition Corp. II COM 31810G109 508 51,134 SH   OTR 1 51,134 0 0
First Trust Senior Fltg. Rate Income Fd.I COM 33733U108 1,020 77,069 SH   SOLE   77,069 0 0
GGP Inc. COM 36174X101 50,557 2,471,011 SH   SOLE   2,471,011 0 0
GGP Inc. COM 36174X101 1,332 65,121 SH   OTR 1 65,121 0 0
GGP Inc. COM 36174X101 1,557 76,100 SH Put SOLE   76,100 0 0
GGP Inc. COM 36174X101 227 11,100 SH Put OTR 1 11,100 0 0
GigCapital, Inc. COM 37518N106 5,720 586,996 SH   SOLE   586,996 0 0
GigCapital, Inc. COM 37518N106 642 65,920 SH   OTR 1 65,920 0 0
GigCapital, Inc. *W EXP 06/08/202 37518N122 207 440,247 SH   SOLE   440,247 0 0
GigCapital, Inc. *W EXP 06/08/202 37518N122 23 49,440 SH   OTR 1 49,440 0 0
Huntsman Corporation COM 447011107 43,415 1,484,266 SH   SOLE   1,484,266 0 0
Huntsman Corporation COM 447011107 1,000 34,184 SH   OTR 1 34,184 0 0
Huntsman Corporation COM 447011107 638 21,800 SH Put SOLE   21,800 0 0
Huntsman Corporation COM 447011107 97 3,300 SH Put OTR 1 3,300 0 0
Huntsman Corporation COM 447011107 38,531 1,317,300 SH Put SOLE   1,317,300 0 0
Huntsman Corporation COM 447011107 439 15,000 SH Put OTR 1 15,000 0 0
Huntsman Corporation COM 447011107 5,660 193,500 SH Put SOLE   193,500 0 0
Huntsman Corporation COM 447011107 860 29,400 SH Put OTR 1 29,400 0 0
ILG, Inc. COM 44967H101 2,243 72,100 SH Put SOLE   72,100 0 0
ILG, Inc. COM 44967H101 271 8,700 SH Put OTR 1 8,700 0 0
ILG, Inc. COM 44967H101 43,586 1,401,043 SH   SOLE   1,401,043 0 0
ILG, Inc. COM 44967H101 664 21,333 SH   OTR 1 21,333 0 0
Impax Laboratories Inc NOTE 2.000% 6/1 45256BAE1 21,779 21,881,000 PRN   SOLE   21,881,000 0 0
Impax Laboratories Inc NOTE 2.000% 6/1 45256BAE1 836 840,000 PRN   OTR 1 840,000 0 0
Invesco Dynamic Credit Opportunities Fund COM 46132R104 1,290 109,967 SH   SOLE   109,967 0 0
Invesco Senior Income Trust COM 46131H107 1,275 289,802 SH   SOLE   289,802 0 0
Johnson Controls International PLC SHS G51502105 6,149 174,500 SH Put SOLE   174,500 0 0
Johnson Controls International PLC SHS G51502105 941 26,700 SH Put OTR 1 26,700 0 0
Johnson Controls International PLC SHS G51502105 941 26,700 SH   OTR 1 26,700 0 0
KapStone Paper and Packaging Corporation COM 48562P103 7,969 232,278 SH   SOLE   232,278 0 0
KapStone Paper and Packaging Corporation COM 48562P103 51 1,492 SH   OTR 1 1,492 0 0
Kayne Anderson Acquisition Corp. COM CL A 48661U102 4,868 497,203 SH   SOLE   497,203 0 0
La Quinta Holdings Inc. COM 50420D108 720 38,099 SH   SOLE   38,099 0 0
La Quinta Holdings Inc. COM 50420D108 109 5,785 SH   OTR 1 5,785 0 0
Landcadia Holdings, Inc. CL A 51476W107 9 864 SH   SOLE   864 0 0
Landcadia Holdings, Inc. CL A 51476W107 1 126 SH   OTR 1 126 0 0
Legacy Acquisition Corp. COM CL A 524643103 4,795 500,000 SH   SOLE   500,000 0 0
Legacy Acquisition Corp. COM CL A 524643103 767 80,000 SH   OTR 1 80,000 0 0
Legacy Acquisition Corp. *W EXP 11/30/202 524643111 170 500,000 SH   SOLE   500,000 0 0
Legacy Acquisition Corp. *W EXP 11/30/202 524643111 27 80,000 SH   OTR 1 80,000 0 0
Liberty Media Corp Delaware COM A SIRIUSXM 531229409 490 11,919 SH   OTR 1 11,919 0 0
MainSource Financial Group, Inc. COM 56062Y102 35 850 SH   SOLE   850 0 0
Select Sector SPDR TR SBI MATERIALS 81369Y100 11,354 199,400 SH Put SOLE   199,400 0 0
Select Sector SPDR TR SBI MATERIALS 81369Y100 251 4,400 SH Put OTR 1 4,400 0 0
Matlin & Partners Acquisition CL A 57682V106 848 86,533 SH   SOLE   86,533 0 0
Matlin & Partners Acquisition CL A 57682V106 132 13,467 SH   OTR 1 13,467 0 0
Microsemi Corporation COM 595137100 90,206 1,393,796 SH   SOLE   1,393,796 0 0
Microsemi Corporation COM 595137100 2,029 31,351 SH   OTR 1 31,351 0 0
Modern Media Acquisition Corp. COM 60765P103 9,565 961,308 SH   SOLE   961,308 0 0
Modern Media Acquisition Corp. COM 60765P103 190 19,088 SH   OTR 1 19,088 0 0
Modern Media Acquisition Corp. *W EXP 05/17/202 60765P111 250 480,654 SH   SOLE   480,654 0 0
Modern Media Acquisition Corp. *W EXP 05/17/202 60765P111 5 9,544 SH   OTR 1 9,544 0 0
MoneyGram International, Inc. COM NEW 60935Y208 1,320 153,125 SH   SOLE   153,125 0 0
MoneyGram International, Inc. COM NEW 60935Y208 70 8,064 SH   OTR 1 8,064 0 0
Monsanto Company NEW COM 61166W101 103,312 885,352 SH   SOLE   885,352 0 0
Monsanto Company NEW COM 61166W101 1,289 11,044 SH   OTR 1 11,044 0 0
Mudrick Capital Acquisition Corp UNIT 02/01/2023 624745204 5,090 498,050 SH   SOLE   498,050 0 0
NXP Semiconductors NV COM N6596X109 218,474 1,867,298 SH   SOLE   1,867,298 0 0
NXP Semiconductors NV COM N6596X109 4,683 40,029 SH   OTR 1 40,029 0 0
NXP Semiconductors NV convertible note DBCV 1.000%12/0 62952QAB6 1,005 809,000 PRN   SOLE   809,000 0 0
National Energy Services Reunited Corp. SHS G6375R107 5,208 524,505 SH   SOLE   524,505 0 0
National Energy Services Reunited Corp. SHS G6375R107 259 26,100 SH   OTR 1 26,100 0 0
New York REIT, Inc. COM NEW 64976L208 241 11,194 SH   SOLE   11,194 0 0
Nuveen Credit Strategies Income Fund COM SHS 67073D102 41 5,170 SH   SOLE   5,170 0 0
Orbital ATK, Inc. COM 68557N103 82,224 620,044 SH   SOLE   620,044 0 0
Orbital ATK, Inc. COM 68557N103 1,390 10,485 SH   OTR 1 10,485 0 0
Orbotech, Ltd. ORD M75253100 48,053 772,800 SH   SOLE   772,800 0 0
Orbotech, Ltd. ORD M75253100 898 14,436 SH   OTR 1 14,436 0 0
Pensare Acquisition Corp. COM 70957E105 10,012 1,029,998 SH   SOLE   1,029,998 0 0
Pensare Acquisition Corp. *W EXP 07/27/202 70957E113 274 514,999 SH   SOLE   514,999 0 0
Pinnacle Entertainment, Inc. COM 72348Y105 19,855 658,553 SH   SOLE   658,553 0 0
Pinnacle Entertainment, Inc. COM 72348Y105 470 15,577 SH   OTR 1 15,577 0 0
QUALCOMM Incorporated COM 747525103 238 4,300 SH   SOLE   4,300 0 0
QUALCOMM Incorporated COM 747525103 39 700 SH   OTR 1 700 0 0
Regalwood Global Energy Ltd. UNIT 99/99/9999 G74760110 3,405 337,755 SH   SOLE   337,755 0 0
Rite Aid Corp. COM 767754104 492 293,074 SH   SOLE   293,074 0 0
Rite Aid Corp. COM 767754104 44 26,026 SH   OTR 1 26,026 0 0
Rockwell Collins, Inc. COM 774341101 134,951 1,000,749 SH   SOLE   1,000,749 0 0
Rockwell Collins, Inc. COM 774341101 2,820 20,909 SH   OTR 1 20,909 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 46,499 176,700 SH Put SOLE   176,700 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 868 3,300 SH Put OTR 1 3,300 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 38,736 147,200 SH Put SOLE   147,200 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 737 2,800 SH Put OTR 1 2,800 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 12,894 49,000 SH Put SOLE   49,000 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 263 1,000 SH Put OTR 1 1,000 0 0
SPDR S&P 500 ETF TR CALLS 78462F103 64,577 245,400 SH Call SOLE   245,400 0 0
SPDR S&P 500 ETF TR CALLS 78462F103 1,210 4,600 SH Call OTR 1 4,600 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 38,762 147,300 SH Put SOLE   147,300 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 711 2,700 SH Put OTR 1 2,700 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 51,683 196,400 SH Put SOLE   196,400 0 0
SPDR S&P 500 ETF TR PUTS 78462F103 947 3,600 SH Put OTR 1 3,600 0 0
SiriusXM Holdings Inc. COM 82968B103 568 90,948 SH   OTR 1 90,948 0 0
Tiberius Acquisition Corporation UNIT 02/28/2021 88633A206 4,527 450,000 SH   SOLE   450,000 0 0
Time Warner Inc. COM NEW 887317303 205,636 2,174,205 SH   SOLE   2,174,205 0 0
Time Warner Inc. COM NEW 887317303 4,447 47,023 SH   OTR 1 47,023 0 0
Tribune Media Company CL A 896047503 43,612 1,076,572 SH   SOLE   1,076,572 0 0
Tribune Media Company CL A 896047503 781 19,275 SH   OTR 1 19,275 0 0
Trinity Industries Inc. COM 896522109 2,447 75,000 SH Put SOLE   75,000 0 0
Trinity Industries Inc. COM 896522109 362 11,100 SH Put OTR 1 11,100 0 0
Trinity Industries Inc. COM 896522109 9,554 292,800 SH Put SOLE   292,800 0 0
Trinity Industries Inc. COM 896522109 1,393 42,700 SH Put OTR 1 42,700 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 8,626 235,100 SH Put SOLE   235,100 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 154 4,200 SH Put OTR 1 4,200 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 29,665 808,527 SH   SOLE   808,527 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 576 15,709 SH   OTR 1 15,709 0 0
Twenty-First Century Fox, Inc. CL B 90130A200 106,499 2,928,198 SH   SOLE   2,928,198 0 0
Twenty-First Century Fox, Inc. CL B 90130A200 2,547 70,025 SH   OTR 1 70,025 0 0
United Technologies Corp COM 913017109 3,838 30,500 SH Put SOLE   30,500 0 0
United Technologies Corp COM 913017109 214 1,700 SH Put OTR 1 1,700 0 0
Validus Holdings, Ltd. COM SHS G9319H102 24,083 357,048 SH   SOLE   357,048 0 0
Voya (ING) Prime Rate Trust SH BEN INT 92913A100 1,300 249,433 SH   SOLE   249,433 0 0
Western Asset High Income Opportunity Fun COM 95766K109 3,259 677,529 SH   SOLE   677,529 0 0
XL Group Limited COM G98294104 55,317 1,001,039 SH   SOLE   1,001,039 0 0
XL Group Limited COM G98294104 375 6,789 SH   OTR 1 6,789 0 0