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
ARRIS International Inc. SHS G0551A103 86,606 2,833,054 SH   SOLE   2,833,054 0 0
ARRIS International Inc. SHS G0551A103 1,617 52,908 SH   OTR 1 52,908 0 0
AT&T Inc. COM 00206R102 13,766 482,355 SH   SOLE   482,355 0 0
AT&T Inc. COM 00206R102 460 16,124 SH   OTR 1 16,124 0 0
Alberton Acquisition Corporation ORD SHS G35006108 7,499 765,193 SH   SOLE   765,193 0 0
Alberton Acquisition Corporation ORD SHS G35006108 635 64,821 SH   OTR 1 64,821 0 0
Altaba Inc. COM 021346101 312,503 5,393,567 SH   SOLE   5,393,567 0 0
Altaba Inc. COM 021346101 5,103 88,074 SH   OTR 1 88,074 0 0
Antero Midstream Partners LP UNT LTD PARTN 03673L103 1,030 48,171 SH   SOLE   48,171 0 0
Apollo Senior Floating Rate Fund Inc. COM 037636107 1,120 77,852 SH   SOLE   77,852 0 0
Apollo Tactical Income Fund Inc. COM 037638103 779 56,605 SH   SOLE   56,605 0 0
Ares Dynamic Credit Allocation Fund COM 04014F102 212 15,388 SH   SOLE   15,388 0 0
Aspen Insurance Holdings Limited SHS G05384105 82,513 1,965,074 SH   SOLE   1,965,074 0 0
Aspen Insurance Holdings Limited SHS G05384105 1,514 36,063 SH   OTR 1 36,063 0 0
Big Rock Partners Acquisition Corp. COM 089482103 2,244 219,998 SH   SOLE   219,998 0 0
Big Rock Partners Acquisition Corp. COM 089482103 253 24,760 SH   OTR 1 24,760 0 0
Big Rock Partners Acquisition Corp. *W EXP 12/01/202 089482111 42 109,999 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 2,080 199,998 SH   SOLE   199,998 0 0
Bison Capital Acquisition Corp. *W EXP 06/20/202 G1142P112 20 99,999 SH   SOLE   99,999 0 0
Black Ridge Acquisition Corp. COM 09216T107 4,618 460,000 SH   SOLE   460,000 0 0
Black Ridge Acquisition Corp. *W EXP 07/10/202 09216T115 147 460,000 SH   SOLE   460,000 0 0
Blackrock Debt Strategies Fund, Inc. COM NEW 09255R202 2,860 292,739 SH   SOLE   292,739 0 0
Blackrock Fltg Rate OME Strategies Fund COM 09255X100 790 66,381 SH   SOLE   66,381 0 0
Brookfield Property REIT Inc. CL A 11282X103 10,473 650,507 SH   SOLE   650,507 0 0
CBS CORP NEW CL B 124857202 3,472 79,406 SH   SOLE   79,406 0 0
CBS CORP NEW CL B 124857202 713 16,300 SH   OTR 1 16,300 0 0
CBS CORP NEW CL B 124857202 800 18,300 SH Put SOLE   18,300 0 0
CBS CORP NEW CL B 124857202 105 2,400 SH Put OTR 1 2,400 0 0
CBS CORP NEW CL B 124857202 1,880 43,000 SH Put SOLE   43,000 0 0
CBS CORP NEW CL B 124857202 184 4,200 SH Put OTR 1 4,200 0 0
CBS CORP NEW CL B 124857202 796 18,200 SH Put SOLE   18,200 0 0
CBS CORP NEW CL B 124857202 109 2,500 SH Put OTR 1 2,500 0 0
CF Finance Acquisition Corp. UNIT 04/30/2025 12528N206 8,846 884,559 SH   SOLE   884,559 0 0
CF Finance Acquisition Corp. UNIT 04/30/2025 12528N206 7 700 SH   OTR 1 700 0 0
CM Seven Star Acquisition Corp. SHS G2345N102 12,639 1,251,393 SH   SOLE   1,251,393 0 0
CM Seven Star Acquisition Corp. SHS G2345N102 747 73,960 SH   OTR 1 73,960 0 0
CM Seven Star Acquisition Corp. warrants *W EXP 08/21/202 G2345N110 59 237,499 SH   SOLE   237,499 0 0
Caesars Entertainment Corp NOTE 5.000%10/0 127686AA1 1,206 969,954 PRN   SOLE   969,954 0 0
Caesars Entertainment Corp sr. unsecured NOTE 5.000%10/0 127686AA1 136 109,345 PRN   OTR 1 109,345 0 0
ChaSerg Technology Acquisition Corp. UNIT 09/30/2023 16166A202 5,296 530,162 SH   SOLE   530,162 0 0
Churchill Capital Corp UNIT 99/99/9999 17142R202 2,789 275,858 SH   SOLE   275,858 0 0
Cigna Corporation COM 125523100 0 1 SH   SOLE   1 0 0
Collier Creek Holdings UNIT 99/99/9999 G22707122 3,313 330,000 SH   SOLE   330,000 0 0
Constellation Alpha Capital Corp. SHS G2379F108 13,636 1,335,517 SH   SOLE   1,335,517 0 0
Constellation Alpha Capital Corp. SHS G2379F108 527 51,642 SH   OTR 1 51,642 0 0
Dell Technologies Inc. CL C 24703L202 26,424 540,702 SH   SOLE   540,702 0 0
Dell Technologies Inc. CL C 24703L202 568 11,616 SH   OTR 1 11,616 0 0
Discovery Inc. COM SER C 25470F302 5,064 219,392 SH   SOLE   219,392 0 0
Discovery Inc. COM SER C 25470F302 132 5,717 SH   OTR 1 5,717 0 0
Disney Walt Co. COM DISNEY 254687106 91,327 832,900 SH Put SOLE   832,900 0 0
Disney Walt Co. COM DISNEY 254687106 1,667 15,200 SH Put OTR 1 15,200 0 0
Dominion Energy Midstream Partners, LP COM UT REP LTD 257454108 86,238 4,780,375 SH   SOLE   4,780,375 0 0
DowDuPont Inc. COM 26078J100 29,553 552,600 SH Put SOLE   552,600 0 0
DowDuPont Inc. COM 26078J100 626 11,700 SH Put OTR 1 11,700 0 0
DowDuPont Inc. COM 26078J100 34,867 651,959 SH   SOLE   651,959 0 0
DowDuPont Inc. COM 26078J100 706 13,200 SH   OTR 1 13,200 0 0
DowDuPont Inc. COM 26078J100 5,680 106,200 SH Put SOLE   106,200 0 0
DowDuPont Inc. COM 26078J100 80 1,500 SH Put OTR 1 1,500 0 0
Dun & Bradstreet Corporation DEL NEW COM 26483E100 44,805 313,894 SH   SOLE   313,894 0 0
Dun & Bradstreet Corporation DEL NEW COM 26483E100 963 6,746 SH   OTR 1 6,746 0 0
Eaton Vance Floating-Rate Income Trust COM 278279104 1,863 147,131 SH   SOLE   147,131 0 0
EnLink Midstream Partners, LP COM UNIT REP LTD 29336U107 777 70,527 SH   SOLE   70,527 0 0
Encana Corporation COM 292505104 13,106 2,267,462 SH   SOLE   2,267,462 0 0
Encana Corporation COM 292505104 550 95,154 SH   OTR 1 95,154 0 0
Esterline Technologies Corporation COM 297425100 62,584 515,309 SH   SOLE   515,309 0 0
Esterline Technologies Corporation COM 297425100 1,318 10,853 SH   OTR 1 10,853 0 0
Federal Steet Acquisition Corp. *W EXP 07/24/202 31421V115 66 88,466 SH   SOLE   88,466 0 0
Federal Steet Acquisition Corp. *W EXP 07/24/202 31421V115 3 4,033 SH   OTR 1 4,033 0 0
Federal Street Acquisition Corp. CL A 31421V107 12,176 1,190,215 SH   SOLE   1,190,215 0 0
Federal Street Acquisition Corp. CL A 31421V107 612 59,785 SH   OTR 1 59,785 0 0
FinTech Acquisition Corp. III UNIT 12/01/2023 31811A309 5,685 568,514 SH   SOLE   568,514 0 0
First Trust Exchange Traded Fund NAT GAS ETF 33733E807 2,711 184,400 SH Put SOLE   184,400 0 0
First Trust Exchange Traded Fund NAT GAS ETF 33733E807 373 25,400 SH Put OTR 1 25,400 0 0
First Trust Exchange Traded Fund NAT GAS ETF 33733E807 8,463 575,700 SH Put SOLE   575,700 0 0
First Trust Exchange Traded Fund NAT GAS ETF 33733E807 370 25,200 SH Put OTR 1 25,200 0 0
First Trust Senior Fltg. Rate Income Fd.I COM 33733U108 863 77,069 SH   SOLE   77,069 0 0
Forum Merger II Corporation CL A 34986F103 3,263 338,100 SH   SOLE   338,100 0 0
Genworth Financial, Inc. COM CL A 37247D106 1,712 367,341 SH   SOLE   367,341 0 0
Genworth Financial, Inc. COM CL A 37247D106 25 5,461 SH   OTR 1 5,461 0 0
GigCapital, Inc. COM 37518N106 8,959 886,996 SH   SOLE   886,996 0 0
GigCapital, Inc. COM 37518N106 666 65,920 SH   OTR 1 65,920 0 0
GigCapital, Inc. *W EXP 06/08/202 37518N122 110 440,247 SH   SOLE   440,247 0 0
GigCapital, Inc. *W EXP 06/08/202 37518N122 12 49,440 SH   OTR 1 49,440 0 0
Gordon Pointe Acquisition Corp. COM CLASS A 382788107 4,558 454,711 SH   SOLE   454,711 0 0
Gordon Pointe Acquisition Corp. COM CLASS A 382788107 38 3,785 SH   OTR 1 3,785 0 0
Graf Industrial Corp. UNIT 12/31/2025 384278206 8,941 894,067 SH   SOLE   894,067 0 0
Graf Industrial Corp. UNIT 12/31/2025 384278206 4 400 SH   OTR 1 400 0 0
Haymaker Acquisition Corp. COM CLASS A 420870107 3,759 375,527 SH   SOLE   375,527 0 0
Huntsman Corporation COM 447011107 6,370 330,200 SH   SOLE   330,200 0 0
Huntsman Corporation COM 447011107 1,013 52,500 SH   OTR 1 52,500 0 0
Huntsman Corporation COM 447011107 6,373 330,400 SH Put SOLE   330,400 0 0
Huntsman Corporation COM 447011107 1,015 52,600 SH Put OTR 1 52,600 0 0
Invesco Dynamic Credit Opportunities Fund COM 46132R104 1,693 164,848 SH   SOLE   164,848 0 0
Invesco Senior Income Trust COM 46131H107 1,866 477,119 SH   SOLE   477,119 0 0
L3 Technologies, Inc. COM 502413107 32,969 189,847 SH   SOLE   189,847 0 0
L3 Technologies, Inc. COM 502413107 519 2,989 SH   OTR 1 2,989 0 0
Legacy Acquisition Corp. COM CL A 524643103 7,346 748,107 SH   SOLE   748,107 0 0
Legacy Acquisition Corp. COM CL A 524643103 786 80,000 SH   OTR 1 80,000 0 0
Legacy Acquisition Corp. *W EXP 11/30/202 524643111 165 500,000 SH   SOLE   500,000 0 0
Legacy Acquisition Corp. *W EXP 11/30/202 524643111 26 80,000 SH   OTR 1 80,000 0 0
Leisure Acquisition Corp. COM 52539T107 4,978 506,900 SH   SOLE   506,900 0 0
Liberty Media Corp Delaware COM A SIRIUSXM 531229409 219 5,959 SH   OTR 1 5,959 0 0
Madison Square Garden CO NEW CL A 55825T103 4,551 17,000 SH   SOLE   17,000 0 0
Madison Square Garden CO NEW CL A 55825T103 616 2,300 SH   OTR 1 2,300 0 0
Madison Square Garden CO NEW CL A 55825T103 4,551 17,000 SH Put SOLE   17,000 0 0
Madison Square Garden CO NEW CL A 55825T103 616 2,300 SH Put OTR 1 2,300 0 0
Megalith Financial Acquisition Corp. CL A COM 58518F109 3,312 341,464 SH   SOLE   341,464 0 0
Megalith Financial Acquisition Corp. CL A COM 58518F109 177 18,285 SH   OTR 1 18,285 0 0
Modern Media Acquisition Corp. COM 60765P103 12,683 1,243,384 SH   SOLE   1,243,384 0 0
Modern Media Acquisition Corp. COM 60765P103 378 37,012 SH   OTR 1 37,012 0 0
Modern Media Acquisition Corp. *W EXP 05/17/202 60765P111 129 480,654 SH   SOLE   480,654 0 0
Modern Media Acquisition Corp. *W EXP 05/17/202 60765P111 3 9,544 SH   OTR 1 9,544 0 0
Mudrick Capital Acquisition COM CLASS A 624745105 4,921 498,050 SH   SOLE   498,050 0 0
Mudrick Capital Acquisition *W EXP 02/12/202 624745113 224 498,050 SH   SOLE   498,050 0 0
Nevsun Resources Ltd. COM 64156L101 5,719 1,303,377 SH   SOLE   1,303,377 0 0
Nevsun Resources Ltd. COM 64156L101 103 23,561 SH   OTR 1 23,561 0 0
Newfield Exploration Company COM 651290108 13,992 954,435 SH   SOLE   954,435 0 0
Newfield Exploration Company COM 651290108 402 27,400 SH   OTR 1 27,400 0 0
Nuveen Credit Strategies Income Fund COM SHS 67073D102 38 5,170 SH   SOLE   5,170 0 0
NxStage Medical, Inc. COM 67072V103 63,389 2,214,858 SH   SOLE   2,214,858 0 0
NxStage Medical, Inc. COM 67072V103 1,029 35,966 SH   OTR 1 35,966 0 0
Opes Acquisition Corp. COM 68373P100 3,013 303,381 SH   SOLE   303,381 0 0
Orbotech, Ltd. ORD M75253100 32,248 570,358 SH   SOLE   570,358 0 0
Orbotech, Ltd. ORD M75253100 613 10,846 SH   OTR 1 10,846 0 0
Pandora Media Inc. COM 698354107 41,514 5,131,484 SH   SOLE   5,131,484 0 0
Pandora Media Inc. COM 698354107 667 82,479 SH   OTR 1 82,479 0 0
Pensare Acquisition Corp. COM 70957E105 13,937 1,375,796 SH   SOLE   1,375,796 0 0
Pensare Acquisition Corp. *W EXP 07/27/202 70957E113 103 514,999 SH   SOLE   514,999 0 0
Pure Acquisition Corp. CL A 74621Q106 8,700 884,114 SH   SOLE   884,114 0 0
Pure Acquisition Corp. *W EXP 04/17/202 74621Q114 502 439,995 SH   SOLE   439,995 0 0
Randgold Resources Limited ADR 752344309 17,005 198,551 SH   SOLE   198,551 0 0
Red Hat, Inc. COM 756577102 171,548 976,702 SH   SOLE   976,702 0 0
Red Hat, Inc. COM 756577102 3,172 18,062 SH   OTR 1 18,062 0 0
Reebonz Holding Limited ORD SHS G7457R106 31 14,999 SH   SOLE   14,999 0 0
Reebonz Holding Limited *W EXP 12/19/202 G7457R114 14 75,000 SH   SOLE   75,000 0 0
Regalwood Global Energy Ltd. COM CL A G74760102 3,317 337,752 SH   SOLE   337,752 0 0
Regalwood Global Energy Ltd. *W EXP 12/05/202 G74760128 120 112,584 SH   SOLE   112,584 0 0
SCANA Corporation NEW COM 80589M102 45,198 945,955 SH   SOLE   945,955 0 0
SCANA Corporation NEW COM 80589M102 777 16,266 SH   OTR 1 16,266 0 0
SPDR Series Trust S&P OILGAS EXP 78464A730 18,083 681,600 SH Put SOLE   681,600 0 0
SPDR Series Trust S&P OILGAS EXP 78464A730 271 10,200 SH Put OTR 1 10,200 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 66,454 265,900 SH Put SOLE   265,900 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 1,025 4,100 SH Put OTR 1 4,100 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 24,567 98,300 SH Put SOLE   98,300 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 425 1,700 SH Put OTR 1 1,700 0 0
SendGrid, Inc. COM 816883102 3,797 87,959 SH   SOLE   87,959 0 0
SendGrid, Inc. COM 816883102 62 1,436 SH   OTR 1 1,436 0 0
Shire PLC SPONSORED ADR 82481R106 22,729 130,598 SH   SOLE   130,598 0 0
Shire PLC SPONSORED ADR 82481R106 406 2,333 SH   OTR 1 2,333 0 0
TKK Symphony Acquisition Corporation ORD SHS G88950103 3,909 405,113 SH   SOLE   405,113 0 0
Select Sector SPDR Tr TECHNOLOGY 81369Y803 24,873 401,300 SH Put SOLE   401,300 0 0
Select Sector SPDR Tr TECHNOLOGY 81369Y803 533 8,600 SH Put OTR 1 8,600 0 0
Select Sector SPDR Tr TECHNOLOGY 81369Y803 14,739 237,800 SH Put SOLE   237,800 0 0
Select Sector SPDR Tr TECHNOLOGY 81369Y803 229 3,700 SH Put OTR 1 3,700 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 4,841 162,400 SH Put SOLE   162,400 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 715 24,000 SH Put OTR 1 24,000 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 2,376 79,700 SH Put SOLE   79,700 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 283 9,500 SH Put OTR 1 9,500 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 7,220 242,200 SH   SOLE   242,200 0 0
The Blackstone Group L.P. COM UNIT LTD 09253U108 996 33,400 SH   OTR 1 33,400 0 0
Thunder Bridge Acquisition, Ltd. SHS CLASS A G8857R100 6,163 622,548 SH   SOLE   622,548 0 0
Thunder Bridge Acquisition, Ltd. SHS CLASS A G8857R100 767 77,452 SH   OTR 1 77,452 0 0
Thunder Bridge Acquisition, Ltd. UNIT 01/01/2025 G8857R118 3,757 369,089 SH   SOLE   369,089 0 0
Tiberius Acquisition Corporation COM 88633A107 4,410 450,000 SH   SOLE   450,000 0 0
Tiberius Acquisition Corporation *W EXP 02/28/202 88633A115 175 450,000 SH   SOLE   450,000 0 0
Travelport Worldwide Limited SHS G9019D104 5,343 342,043 SH   SOLE   342,043 0 0
Travelport Worldwide Limited SHS G9019D104 85 5,457 SH   OTR 1 5,457 0 0
Trident Acquisitions Corp. COM 89615T106 12,429 1,246,591 SH   SOLE   1,246,591 0 0
Trident Acquisitions Corp. COM 89615T106 563 56,511 SH   OTR 1 56,511 0 0
Trinity Merger Corp. COM CL A 89653L106 18,260 1,827,819 SH   SOLE   1,827,819 0 0
Trinity Merger Corp. COM CL A 89653L106 887 88,836 SH   OTR 1 88,836 0 0
Trinity Merger Corp. *W EXP 05/11/202 89653L114 158 400,000 SH   SOLE   400,000 0 0
Trinity Merger Corp. *W EXP 05/11/202 89653L114 20 50,727 SH   OTR 1 50,727 0 0
Twelve Seas Investment Company SHS G9145A107 4,664 475,000 SH   SOLE   475,000 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 17,510 363,875 SH   SOLE   363,875 0 0
Twenty-First Century Fox, Inc. CL A 90130A101 156 3,235 SH   OTR 1 3,235 0 0
Twenty-First Century Fox, Inc. CL B 90130A200 225,844 4,726,741 SH   SOLE   4,726,741 0 0
Twenty-First Century Fox, Inc. CL B 90130A200 4,907 102,708 SH   OTR 1 102,708 0 0
USG Corporation COM NEW 903293405 48,459 1,135,944 SH   SOLE   1,135,944 0 0
Union Acquisition Corp. SHS G9366W101 8,069 801,312 SH   SOLE   801,312 0 0
Union Acquisition Corp. SHS G9366W101 759 75,413 SH   OTR 1 75,413 0 0
United Technologies Corporation COM 913017109 6,822 64,073 SH   SOLE   64,073 0 0
United Technologies Corporation COM 913017109 1,086 10,200 SH   OTR 1 10,200 0 0
United Technologies Corporation COM 913017109 4,887 45,900 SH Put SOLE   45,900 0 0
United Technologies Corporation COM 913017109 671 6,300 SH Put OTR 1 6,300 0 0
Valero Energy Partners LP COM UNT REP LP 91914J102 64,654 1,533,178 SH   SOLE   1,533,178 0 0
VectoIQ Acquisition Corp. COM 92243N103 8,145 839,699 SH   SOLE   839,699 0 0
VectoIQ Acquisition Corp. COM 92243N103 763 78,705 SH   OTR 1 78,705 0 0
Voya (ING) Prime Rate Trust SH BEN INT 92913A100 2,051 456,729 SH   SOLE   456,729 0 0
Western Asset High Income Opportunity Fun COM 95766K109 3,101 707,954 SH   SOLE   707,954 0 0
athenahealth, Inc. COM 04685W103 18,831 142,738 SH   SOLE   142,738 0 0
athenahealth, Inc. COM 04685W103 381 2,885 SH   OTR 1 2,885 0 0