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
A T & T INC (NEW) COM 00206R102 390 11,632 SH   SOLE   11,632 0 0
AEROHIVE NETWORKS INC COM COM 007786106 2,193 495,127 SH   SOLE   495,127 0 0
AGBA ACQUISTION LTD COM G0120M133 880 87,800 SH   SOLE   87,800 0 0
ALLERGAN PLC SHS COM G0177J108 11,835 70,684 SH   SOLE   70,684 0 0
ALTABA INC COM 021346101 30,691 442,428 SH   SOLE   442,428 0 0
AMBER RD INC COM COM 02318Y108 4,468 342,100 SH   SOLE   342,100 0 0
AMCI ACQUISITION CORP CLASS A COM 00165R101 4,161 418,600 SH   SOLE   418,600 0 0
AMCI ACQUISITION CORP WT EXP 0 WARRANT AND RIGH 00165R119 121 418,600 SH   SOLE   418,600 0 0
AMERICAN MIDSTREAM PARTNERS CO COM 02752P100 1,056 204,256 SH   SOLE   204,256 0 0
ANADARKO PETE CORP COM COM 032511107 40,452 573,298 SH   SOLE   573,298 0 0
ANDINA ACQUISITION CORP III RT WARRANT AND RIGH G04415132 63 243,600 SH   SOLE   243,600 0 0
ANDINA ACQUISITION CORP III SH COM G04415108 2,414 243,600 SH   SOLE   243,600 0 0
ANDINA ACQUISITION CORP III WT WARRANT AND RIGH G04415124 51 243,600 SH   SOLE   243,600 0 0
ANTHEM INC COM COM 036752103 212 750 SH   SOLE   750 0 0
AQUANTIA CORP COM COM 03842Q108 6,545 502,300 SH   SOLE   502,300 0 0
ARATANA THERAPEUTICS INC COM COM 03874P101 2,757 534,397 SH   SOLE   534,397 0 0
ARRAY BIOPHARMA INC COM COM 04269X105 25,184 543,580 SH   SOLE   543,580 0 0
ATTUNITY LTD SHS NEW COM M15332121 3,390 144,256 SH   SOLE   144,256 0 0
AVAYA HLDGS CORP COM COM 05351X101 787 66,100 SH   SOLE   66,100 0 0
B RILEY PRINCIPAL MERGER CORCL COM 05586Y106 2,926 300,100 SH   SOLE   300,100 0 0
B RILEY PRINCIPAL MERGER CORWT WARRANT AND RIGH 05586Y114 50 100,150 SH   SOLE   100,150 0 0
BANCO SANTANDER S A SPONSORED COM 05969B103 3,233 422,675 SH   SOLE   422,675 0 0
BANCROFT FUND LTD COM MUTUAL FUNDS 059695106 1,365 60,941 SH   SOLE   60,941 0 0
BANK OF AMERICA COM 060505104 3,342 115,229 SH   SOLE   115,229 0 0
BANK OF AMERICA CV PFD L 7.250 CONVERTIBLE PREF 060505682 240 175 SH   SOLE   175 0 0
BANK OF NEW YORK MELLON CORP COM 064058100 839 19,000 SH   SOLE   19,000 0 0
BARNES & NOBLES COM 067774109 1,266 189,189 SH   SOLE   189,189 0 0
BIOSCRIP INC COM 09069N108 2,275 874,809 SH   SOLE   874,809 0 0
BRUNSWICK CORP COM 117043109 252 5,500 SH   SOLE   5,500 0 0
BUCKEYE PARTNERS L P UNIT LTD OIL & GAS PARTNE 118230101 3,871 94,301 SH   SOLE   94,301 0 0
BUNGE LIMITED COM COM G16962105 251 4,500 SH   SOLE   4,500 0 0
BUNGE LIMITED COM G16962905 945 100 SH Call SOLE   0 0 0
CAESARS ENTMT CORP COM COM 127686103 5,232 442,650 SH   SOLE   442,650 0 0
CBS CORP CLASS A COM 124857103 523 10,450 SH   SOLE   10,450 0 0
CELGENE CORP COM 151020104 46,490 502,920 SH   SOLE   502,920 0 0
CHASERG TECHNLGY ACQUISITN CCL COM 16166A103 2,967 295,536 SH   SOLE   295,536 0 0
CHASERG TECHNLGY ACQUISITN CWT WARRANT AND RIGH 16166A111 111 147,768 SH   SOLE   147,768 0 0
CHICOS FAS INC COM COM 168615102 268 79,400 SH   SOLE   79,400 0 0
CHIPOTLE MEXICAN GRILL INC CL COM 169656105 4,764 6,500 SH   SOLE   6,500 0 0
CIGNA CORP NEW COM 125523100 205 1,300 SH   SOLE   1,300 0 0
CIRCOR INTL INC COM COM 17273K109 4,025 87,500 SH   SOLE   87,500 0 0
CITIGROUP INC COM 172967424 525 7,500 SH   SOLE   7,500 0 0
CLEAR CHANNEL OUTDOOR HLDG COM 18453H106 148 31,250 SH   SOLE   31,250 0 0
CLVS 2 1/2 9/15/21 CONVERTIBLE BOND 189464AB6 243 275,000 PRN   SOLE   275,000 0 0
CNH INDUSTRIAL NV COM N20944109 308 30,000 SH   SOLE   30,000 0 0
COASTAL FINANCIAL CORP/WA COM 19046P209 1,238 80,000 SH   SOLE   80,000 0 0
COHEN & STEERS INC COM COM 19247A100 463 9,000 SH   SOLE   9,000 0 0
CONAGRA BRANDS INC COM 205887102 318 12,000 SH   SOLE   12,000 0 0
CONNECTICUT WTR SVC INC COM COM 207797101 590 8,464 SH   SOLE   8,464 0 0
CONTROL4 CORP COM COM 21240D107 6,624 278,889 SH   SOLE   278,889 0 0
CORCEPT THERAPEUTICS INC OC-CO COM 218352102 163 14,600 SH   SOLE   14,600 0 0
CRAY INC COM NEW COM 225223304 463 13,300 SH   SOLE   13,300 0 0
CYPRESS SEMICONDUCTOR CORP COM COM 232806109 10,069 452,745 SH   SOLE   452,745 0 0
DEL FRISCOS RESTAURANT GROUPCO COM 245077102 6,892 865,782 SH   SOLE   865,782 0 0
DISCOVERY INC-C COM 25470F302 3,185 111,935 SH   SOLE   111,935 0 0
DISH NETWORK CORPORATION COM 25470M109 334 8,700 SH   SOLE   8,700 0 0
DISNEY WALT PRODTNS COM 254687106 419 3,000 SH   SOLE   3,000 0 0
EATON CORP PLC SHS COM G29183103 658 7,900 SH   SOLE   7,900 0 0
EDTECHX HLDGS ACQUISITION COCO COM 28138X103 1,072 107,700 SH   SOLE   107,700 0 0
EL PASO ELEC CO COM NEW COM 283677854 2,178 33,300 SH   SOLE   33,300 0 0
ELECTRONICS FOR IMAGING INC CO COM 286082102 6,819 184,746 SH   SOLE   184,746 0 0
ENPRO INDS INC COM COM 29355X107 287 4,500 SH   SOLE   4,500 0 0
ENTEGRA FINL CORP COM COM 29363J108 2,934 97,400 SH   SOLE   97,400 0 0
EVOLENT HEALTH INC CL A COM 30050B101 123 15,500 SH   SOLE   15,500 0 0
EXACT SCIENCES CORP COM COM 30063P105 514 4,356 SH   SOLE   4,356 0 0
EXAS 1.000 01/15/25 CONVERTIBLE BOND 30063PAA3 216 125,000 PRN   SOLE   125,000 0 0
FALCON MINERALS CORP COM 30607B109 660 78,514 SH   SOLE   78,514 0 0
FINISAR CORP COM NEW COM 31787A507 3,933 171,980 SH   SOLE   171,980 0 0
FIRST DATA CORP NEW COM CL A COM 32008D106 29,793 1,100,581 SH   SOLE   1,100,581 0 0
FORUM MERGER II CORP CL A COM 34986F103 3,704 368,900 SH   SOLE   368,900 0 0
FORUM MERGER II CORP WT EXP 09 WARRANT AND RIGH 34986F111 236 368,900 SH   SOLE   368,900 0 0
FOX CORP CL B COM 35137L204 5,140 140,702 SH   SOLE   140,702 0 0
GABELLI CV SECURITIES FUND MUTUAL FUNDS 36240B109 1,836 357,988 SH   SOLE   357,988 0 0
GABELLI DIV&INC TR COM MUTUAL FUNDS 36242H104 12,661 584,261 SH   SOLE   584,261 0 0
GABELLI GLB SML & MD CP VAL CO MUTUAL FUNDS 36249W104 937 80,725 SH   SOLE   80,725 0 0
GABELLI GLOBAL UTIL & INCOMECO MUTUAL FUNDS 36242L105 6,966 370,159 SH   SOLE   370,159 0 0
GABELLI GO ANYWHERE TRUST MUTUAL FUNDS 36250J109 1,616 105,996 SH   SOLE   105,996 0 0
GABELLI MULTIMEDIA TRST INC MUTUAL FUNDS 36239Q109 2,499 310,076 SH   SOLE   310,076 0 0
GAMCO INVESTORS INC COM COM 361438104 57,826 3,016,501 SH   SOLE   3,016,501 0 0
GAMCO NAT RESOURCE GOLD X MUTUAL FUNDS 36465E101 72 12,348 SH   SOLE   12,348 0 0
GCP APPLIED TECHNOLOGIES INCCO COM 36164Y101 975 43,086 SH   SOLE   43,086 0 0
GDL FUND MUTUAL FUNDS 361570104 15,777 1,705,000 SH   SOLE   1,705,000 0 0
GENERAL ELEC CO COM 369604103 328 31,200 SH   SOLE   31,200 0 0
GENERAL ELECTRIC CO COM 369604903 216 100 SH Call SOLE   0 0 0
GENWORTH FINL INC COM CL A COM 37247D106 213 57,523 SH   SOLE   57,523 0 0
GIGCAPITAL2 INC COM 375036209 791 78,900 SH   SOLE   78,900 0 0
GLOBAL BRASS & COPPER HOLDIN COM 37953G103 6,416 146,722 SH   SOLE   146,722 0 0
GORDON POINTE ACQUISITION COCO COM 382788107 3,862 373,900 SH   SOLE   373,900 0 0
GORDON POINTE ACQUISITION COWT WARRANT AND RIGH 382788115 76 223,900 SH   SOLE   223,900 0 0
GRIFOLS SA SP ADR REP B NVT COM 398438408 7,973 377,871 SH   SOLE   377,871 0 0
GRUPO TELEVISA SA DE CV ADR (B COM 40049J206 369 43,750 SH   SOLE   43,750 0 0
GYRODYNE LLC COM COM 403829104 1,623 87,994 SH   SOLE   87,994 0 0
HC2 HLDGS INC COM COM 404139107 88 37,100 SH   SOLE   37,100 0 0
HCA HEALTHCARE INC COM 40412C101 203 1,500 SH   SOLE   1,500 0 0
HEICO CORP NEW CL A COM 422806208 8,227 79,591 SH   SOLE   79,591 0 0
HFF INC CL A COM 40418F108 3,870 85,089 SH   SOLE   85,089 0 0
HLX 4 1/8 9/15/23 CONVERTIBLE BOND 42330PAJ6 243 200,000 PRN   SOLE   200,000 0 0
HONEYWELL INT'L INC COM 438516106 210 1,200 SH   SOLE   1,200 0 0
HOPFED BANCORP INC COM COM 439734104 3,069 161,796 SH   SOLE   161,796 0 0
HYDROGENICS CORP NEW COM NEW COM 448883207 325 21,900 SH   SOLE   21,900 0 0
ICAHN ENTERPRISES LP DEPOSITRY COM 451100101 521 7,200 SH   SOLE   7,200 0 0
ICPT 2.000 05/15/26 CONVERTIBLE BOND 45845PAB4 300 300,000 PRN   SOLE   300,000 0 0
ICPT 3 1/4 7/1/23 CONVERTIBLE BOND 45845PAA6 178 200,000 PRN   SOLE   200,000 0 0
INFN 2 1/8 9/1/24 CONVERTIBLE BOND 45667GAC7 240 350,000 PRN   SOLE   350,000 0 0
INTERACTIVE BROKERS COM 45841N107 1,734 32,000 SH   SOLE   32,000 0 0
INTERMOLECULAR INC COM COM 45882D109 1,656 1,415,000 SH   SOLE   1,415,000 0 0
INTERNAP CORP COM PAR COM 45885A409 30 10,000 SH   SOLE   10,000 0 0
INTERNATIONAL GAME TECH PLC SH COM G4863A108 195 15,000 SH   SOLE   15,000 0 0
INTERNATIONAL SPEEDWAY A COM 460335201 3,117 69,433 SH   SOLE   69,433 0 0
IPHI 1 1/8 12/1/20 CONVERTIBLE BOND 45772FAB3 201 150,000 PRN   SOLE   150,000 0 0
KKR & CO INC CL A COM 48251W104 3,093 122,410 SH   SOLE   122,410 0 0
L3 TECHNOLOGIES INC COM 502413107 33,724 137,553 SH   SOLE   137,553 0 0
LEGACY TEX FINL GROUP INC COM COM 52471Y106 2,594 63,730 SH   SOLE   63,730 0 0
LENNAR B SHARES COM 526057302 6,875 178,531 SH   SOLE   178,531 0 0
LF CAP ACQUISITION CORP CL A COM 50200K108 4,547 447,993 SH   SOLE   447,993 0 0
LF CAP ACQUISITION CORP WT EXP WARRANT AND RIGH 50200K116 152 447,993 SH   SOLE   447,993 0 0
LIBERTY BRAVES GROUP C COM 531229888 317 11,339 SH   SOLE   11,339 0 0
LIBERTY SIRIUS GROUP C COM 531229607 23,605 621,500 SH   SOLE   621,500 0 0
LORAL SPACE & COMMUNICATNS ICO COM 543881106 5,313 153,968 SH   SOLE   153,968 0 0
MBT FINL CORP COM COM 578877102 959 95,700 SH   SOLE   95,700 0 0
MDCO 2 3/4 7/15/23 CONVERTIBLE BOND 584688AG0 245 250,000 PRN   SOLE   250,000 0 0
MEDIDATA SOLUTIONS INC COM COM 58471A105 13,720 151,585 SH   SOLE   151,585 0 0
MEGALITH FINANCIAL ACQUISITION COM 58518F109 4,450 443,200 SH   SOLE   443,200 0 0
MELLANOX TECHNOLOGIES LTD SHS COM M51363113 29,157 263,459 SH   SOLE   263,459 0 0
MGM RESORTS INTERNATIONAL COM 552953101 251 8,800 SH   SOLE   8,800 0 0
MIDSOUTH BANCORP INC COM COM 598039105 523 44,094 SH   SOLE   44,094 0 0
MITEK SYS INC COM NEW COM 606710200 1,051 105,720 SH   SOLE   105,720 0 0
MONOCLE ACQUISITION CORP COM COM 609754106 3,611 364,700 SH   SOLE   364,700 0 0
MONOCLE ACQUISITION CORP WT EX WARRANT AND RIGH 609754114 100 284,300 SH   SOLE   284,300 0 0
MUELLER INDS INC COM COM 624756102 234 8,000 SH   SOLE   8,000 0 0
MULTI-COLOR CORP COM 625383104 13,230 264,764 SH   SOLE   264,764 0 0
NASDAQ STOCK MARKET INC COM COM 631103108 577 6,000 SH   SOLE   6,000 0 0
NATIONAL FUEL GAS CO N J COM COM 636180101 364 6,900 SH   SOLE   6,900 0 0
NEBULA ACQUISITION CORP COM CL COM 629076100 3,968 393,293 SH   SOLE   393,293 0 0
NEBULA ACQUISITION CORP WT EXP WARRANT AND RIGH 629076118 93 93,031 SH   SOLE   93,031 0 0
NEWELL BRANDS COM 651229106 185 12,000 SH   SOLE   12,000 0 0
NEWMONT GOLDCORP CORP COM 651639106 346 9,000 SH   SOLE   9,000 0 0
NORTHSTAR REALTY EUROPE CORPCO COM 66706L101 1,115 67,891 SH   SOLE   67,891 0 0
OAKTREE CAP GROUP LLC UNIT CL UNITS 674001201 17,055 344,259 SH   SOLE   344,259 0 0
OPKO HEALTH INC COM COM 68375N103 49 20,000 SH   SOLE   20,000 0 0
PACIFIC BIOSCIENCES CALIF INCO COM 69404D108 7,939 1,312,207 SH   SOLE   1,312,207 0 0
PDCE 1 1/8 9/15/21 CONVERTIBLE BOND 69327RAD3 305 325,000 PRN   SOLE   325,000 0 0
PNC FINANCIAL CORP COM 693475105 494 3,600 SH   SOLE   3,600 0 0
PROFICIENT ALPHA ACQUISITION C COM 74317H204 1,648 164,000 SH   SOLE   164,000 0 0
RDUS 3.000 09/01/24 CONVERTIBLE BOND 750469AA6 181 200,000 PRN   SOLE   200,000 0 0
RED HAT INC COM 756577102 52,203 278,032 SH   SOLE   278,032 0 0
ROAN RES INC CL A COM COM 769755109 184 105,550 SH   SOLE   105,550 0 0
RYMAN HOSPITALITY PPTYS INC CO COM 78377T107 697 8,600 SH   SOLE   8,600 0 0
SCRIPPS E W CO OHIO CL A COM 811054402 214 14,000 SH   SOLE   14,000 0 0
SHUTTERFLY INC COM COM 82568P304 7,463 147,633 SH   SOLE   147,633 0 0
SOCIAL CAP HEDOSOPHIA HLDGS CL COM G8250R103 4,080 390,961 SH   SOLE   390,961 0 0
SOCIAL CAP HEDOSOPHIA HLDGS WT WARRANT AND RIGH G8250R129 99 73,713 SH   SOLE   73,713 0 0
SONY CORP-ADR (B:SNE US) COM 835699307 1,284 24,500 SH   SOLE   24,500 0 0
SPARK THERAPEUTICS INC COM COM 84652J103 29,867 291,724 SH   SOLE   291,724 0 0
SPWR 4 1/15/23 CONVERTIBLE BOND 867652AL3 466 525,000 PRN   SOLE   525,000 0 0
STEWARDSHIP FINL CORP COM COM 860326107 2,235 144,555 SH   SOLE   144,555 0 0
SUNTRUST BANKS INC COM 867914103 11,072 176,167 SH   SOLE   176,167 0 0
SUPERIOR INDS INTL INC COM 868168105 55 16,000 SH   SOLE   16,000 0 0
TABLEAU SOFTWARE INC CL A COM 87336U105 26,248 158,100 SH   SOLE   158,100 0 0
TBPH 3 1/4 11/1/23 CONVERTIBLE BOND 88339KAA0 347 400,000 PRN   SOLE   400,000 0 0
TELEPHONE & DATA SYS COM 879433829 605 19,900 SH   SOLE   19,900 0 0
TENZING ACQUISITION CORP ORD S COM G8708A116 1,988 194,500 SH   SOLE   194,500 0 0
TENZING ACQUISITION CORP WT EX WARRANT AND RIGH G8708A108 41 194,500 SH   SOLE   194,500 0 0
TESLA MOTORS 1.250 03/1/21 CONVERTIBLE BOND 88160RAC5 571 600,000 PRN   SOLE   600,000 0 0
TEXAS INSTRUMENTS INC COM 882508104 344 3,000 SH   SOLE   3,000 0 0
TEXAS PAC LD TR SUB CTF PROP I COM 882610108 315 400 SH   SOLE   400 0 0
TEXTRON INC COM 883203101 392 7,400 SH   SOLE   7,400 0 0
THE MEDICINES CO. 2.5 1/15/22 CONVERTIBLE BOND 584688AE5 301 250,000 PRN   SOLE   250,000 0 0
TKK SYMPHONY ACQUISITION CORRT WARRANT AND RIGH G88950137 38 208,580 SH   SOLE   208,580 0 0
TKK SYMPHONY ACQUISITION CORWT WARRANT AND RIGH G88950129 27 208,580 SH   SOLE   208,580 0 0
TKK SYMPHONY ACQUISTION COR COM G88950103 3,329 332,580 SH   SOLE   332,580 0 0
TRIBUNE MEDIA CO - A COM 896047503 23,349 505,173 SH   SOLE   505,173 0 0
TRINE ACQUISITION CORP COM CL COM 89628U108 960 99,000 SH   SOLE   99,000 0 0
TRINE ACQUISITION CORP WT EXP WARRANT AND RIGH 89628U116 37 49,500 SH   SOLE   49,500 0 0
TRINITY MERGER CORP COM CL A COM 89653L106 4,358 423,100 SH   SOLE   423,100 0 0
TRINITY MERGER CORP WT EXP 051 WARRANT AND RIGH 89653L114 140 423,100 SH   SOLE   423,100 0 0
TWO 6 1/4 1/15/22 CONVERTIBLE BOND 90187BAA9 506 500,000 PRN   SOLE   500,000 0 0
UQM TECHNOLOGIES INC COM COM 903213106 1,966 1,191,600 SH   SOLE   1,191,600 0 0
VANECK VECTORS GOLD MINERS ETF ETF - EQUITY 92189F106 284 11,100 SH   SOLE   11,100 0 0
VECTOIQ ACQUISITION CORP COM COM 92243N103 3,464 342,000 SH   SOLE   342,000 0 0
VECTOIQ ACQUISITION CORP WT EX WARRANT AND RIGH 92243N111 131 279,200 SH   SOLE   279,200 0 0
VEON LTD ADR COM 91822M106 78 28,000 SH   SOLE   28,000 0 0
VERIZON COMMUNICATIONS COM 92343V104 1,543 27,000 SH   SOLE   27,000 0 0
VERSUM MATLS INC COM COM 92532W103 26,411 512,037 SH   SOLE   512,037 0 0
VIACOM INC NEW CL A COM 92553P102 416 12,200 SH   SOLE   12,200 0 0
VULCAN MATLS CO COM COM 929160109 330 2,400 SH   SOLE   2,400 0 0
WABCO HLDGS INC COM 92927K102 17,393 131,172 SH   SOLE   131,172 0 0
WAGEWORKS INC COM COM 930427109 4,279 84,248 SH   SOLE   84,248 0 0
WEATHERFORD INTERNATIONAL PLC COM G48833100 3 55,000 SH   SOLE   55,000 0 0
WELLCARE HEALTH PLANS INC COM COM 94946T106 11,631 40,800 SH   SOLE   40,800 0 0
WELLS FARGO CV PFD L 7.500 CONVERTIBLE PREF 949746804 343 250 SH   SOLE   250 0 0
WELLS FARGO & CO NEW COM 949746101 3,866 81,693 SH   SOLE   81,693 0 0
WORLDPAY INC COM 981558109 26,435 215,706 SH   SOLE   215,706 0 0
ZAYO GROUP HLDGS INC COM COM 98919V105 17,977 546,254 SH   SOLE   546,254 0 0