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 1,590 50,700 SH   SOLE   50,700 0 0
ALLERGAN PLC SHS COM G0177J108 306 2,090 SH   SOLE   2,090 0 0
ALLIANCE BERNSTEIN HLDGS LP UN COM 01881G106 202 7,000 SH   SOLE   7,000 0 0
ALTABA INC COM 021346101 33,905 457,428 SH   SOLE   457,428 0 0
AMCI ACQUISITION CORP CLASS A COM 00165R101 3,839 390,100 SH   SOLE   390,100 0 0
AMCI ACQUISITION CORP UNIT EX UNITS 00165R200 288 28,500 SH   SOLE   28,500 0 0
AMCI ACQUISITION CORP WT EXP 0 WARRANT AND RIGH 00165R119 109 390,100 SH   SOLE   390,100 0 0
AMD 2 1/8 9/1/26 CONVERTIBLE BOND 007903BD8 496 150,000 PRN   SOLE   150,000 0 0
AMERICAN MIDSTREAM PARTNERS CO COM 02752P100 389 75,286 SH   SOLE   75,286 0 0
ANDINA ACQUISITION CORP COM G04415116 2,460 243,600 SH   SOLE   243,600 0 0
ANTHEM INC COM COM 036752103 215 750 SH   SOLE   750 0 0
ARRIS INTERNATIONAL PLC COM G0551A103 29,343 928,279 SH   SOLE   928,279 0 0
ATTUNITY LTD SHS NEW COM M15332121 2,650 113,000 SH   SOLE   113,000 0 0
BANCROFT FUND LTD COM MUTUAL FUNDS 059695106 1,303 60,941 SH   SOLE   60,941 0 0
BANK OF AMERICA COM 060505104 3,179 115,229 SH   SOLE   115,229 0 0
BANK OF AMERICA CV PFD L 7.250 CONVERTIBLE PREF 060505682 229 175 SH   SOLE   175 0 0
BANK OF NEW YORK MELLON CORP COM 064058100 958 19,000 SH   SOLE   19,000 0 0
BAXTER INTL INC COM COM 071813109 203 2,500 SH   SOLE   2,500 0 0
BELMOND LTD CL A COM G1154H107 17,105 686,104 SH   SOLE   686,104 0 0
BEMIS INC COM COM 081437105 7,389 133,183 SH   SOLE   133,183 0 0
BRISTOL MYERS SQUIBB CO COM 110122958 4,322 100 SH Put SOLE   0 0 0
BSB BANCORP INC MD COM COM 05573H108 727 22,140 SH   SOLE   22,140 0 0
BUNGE LIMITED COM COM G16962105 260 4,900 SH   SOLE   4,900 0 0
BUNGE LIMITED COM G16962905 945 100 SH Call SOLE   0 0 0
CAS MED SYS INC COM PAR COM 124769209 61 25,000 SH   SOLE   25,000 0 0
CBS CORP CLASS A COM 124857103 498 10,450 SH   SOLE   10,450 0 0
CELGENE CORP COM 151020104 30,974 328,326 SH   SOLE   328,326 0 0
CHASERG TECHNLGY ACQUISITN CCL COM 16166A103 2,917 295,536 SH   SOLE   295,536 0 0
CHASERG TECHNLGY ACQUISITN CWT WARRANT AND RIGH 16166A111 96 147,768 SH   SOLE   147,768 0 0
CHIPOTLE MEXICAN GRILL INC CL COM 169656105 4,617 6,500 SH   SOLE   6,500 0 0
CITIGROUP INC COM 172967424 467 7,500 SH   SOLE   7,500 0 0
CLEAR CHANNEL OUTDOOR HLDGS CL COM 18451C109 166 31,000 SH   SOLE   31,000 0 0
CLEMENTIA PHARMACEUTICALS INCO COM 185575107 3,329 127,549 SH   SOLE   127,549 0 0
CLVS 2 1/2 9/15/21 CONVERTIBLE BOND 189464AB6 256 275,000 PRN   SOLE   275,000 0 0
CM SEVEN STAR ACQUISITION COSH COM G2345N102 1,853 180,800 SH   SOLE   180,800 0 0
CNH INDUSTRIAL NV COM N20944109 245 24,000 SH   SOLE   24,000 0 0
COASTAL FINANCIAL CORP/WA COM 19046P209 1,359 80,000 SH   SOLE   80,000 0 0
COHEN & STEERS INC COM COM 19247A100 423 10,000 SH   SOLE   10,000 0 0
CONAGRA BRANDS INC COM 205887102 444 16,000 SH   SOLE   16,000 0 0
CONNECTICUT WTR SVC INC COM COM 207797101 1,140 16,600 SH   SOLE   16,600 0 0
CORCEPT THERAPEUTICS INC OC-CO COM 218352102 171 14,600 SH   SOLE   14,600 0 0
DELL TECHNOLOGIES INC CL C COM 24703L202 1,123 19,128 SH   SOLE   19,128 0 0
DISCOVERY INC-C COM 25470F302 1,526 60,050 SH   SOLE   60,050 0 0
DISH NETWORK CORPORATION COM 25470M109 276 8,700 SH   SOLE   8,700 0 0
DISNEY WALT PRODTNS COM 254687106 3,866 34,821 SH   SOLE   34,821 0 0
EATON CORP PLC SHS COM G29183103 636 7,900 SH   SOLE   7,900 0 0
EDTECHX HLDGS ACQUISITION COCO COM 28138X103 1,086 107,700 SH   SOLE   107,700 0 0
ELLIE MAE INC COM COM 28849P100 31,143 315,562 SH   SOLE   315,562 0 0
EVOLENT HEALTH INC CL A COM 30050B101 141 11,200 SH   SOLE   11,200 0 0
EXACT SCIENCES CORP COM COM 30063P105 368 4,250 SH   SOLE   4,250 0 0
FALCON MINERALS CORP COM 30607B109 694 78,514 SH   SOLE   78,514 0 0
FINISAR CORP COM NEW COM 31787A507 3,985 171,980 SH   SOLE   171,980 0 0
FIRST DATA CORP NEW COM CL A COM 32008D106 18,222 693,640 SH   SOLE   693,640 0 0
FORUM MERGER II CORP CL A COM 34986F103 3,656 368,900 SH   SOLE   368,900 0 0
FORUM MERGER II CORP WT EXP 09 WARRANT AND RIGH 34986F111 162 368,900 SH   SOLE   368,900 0 0
FOX CORP CL B COM 35137L204 9,557 266,354 SH   SOLE   266,354 0 0
GABELLI CV SECURITIES FUND MUTUAL FUNDS 36240B109 1,862 357,988 SH   SOLE   357,988 0 0
GABELLI DIV&INC TR COM MUTUAL FUNDS 36242H104 12,432 584,218 SH   SOLE   584,218 0 0
GABELLI GLB SML & MD CP VAL CO MUTUAL FUNDS 36249W104 939 79,769 SH   SOLE   79,769 0 0
GABELLI GLOBAL UTIL & INCOMECO MUTUAL FUNDS 36242L105 6,796 364,201 SH   SOLE   364,201 0 0
GABELLI GO ANYWHERE TRUST MUTUAL FUNDS 36250J109 1,886 104,685 SH   SOLE   104,685 0 0
GABELLI GOLD NAT RES & INCOM MUTUAL FUNDS 36465A109 57 13,169 SH   SOLE   13,169 0 0
GABELLI MULTIMEDIA TRST INC MUTUAL FUNDS 36239Q109 2,554 307,011 SH   SOLE   307,011 0 0
GAMCO INVESTORS INC COM COM 361438104 61,838 3,016,501 SH   SOLE   3,016,501 0 0
GAMCO NAT RESOURCE GOLD X MUTUAL FUNDS 36465E109 68 12,024 SH   SOLE   12,024 0 0
GCP APPLIED TECHNOLOGIES INCCO COM 36164Y101 252 8,500 SH   SOLE   8,500 0 0
GDL FUND MUTUAL FUNDS 361570104 16,127 1,686,878 SH   SOLE   1,686,878 0 0
GENERAL ELEC CO COM 369604103 312 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 750 195,921 SH   SOLE   195,921 0 0
GOLDCORP INC (US) COM 380956409 9,234 807,200 SH   SOLE   807,200 0 0
GORDON POINTE ACQUISITION COCO COM 382788107 3,814 373,900 SH   SOLE   373,900 0 0
GORDON POINTE ACQUISITION COWT WARRANT AND RIGH 382788115 85 223,900 SH   SOLE   223,900 0 0
GRIFOLS SA SP ADR REP B NVT COM 398438408 5,855 291,171 SH   SOLE   291,171 0 0
GRUPO TELEVISA SA DE CV ADR (B COM 40049J206 509 46,000 SH   SOLE   46,000 0 0
GYRODYNE LLC COM COM 403829104 1,584 87,994 SH   SOLE   87,994 0 0
HC2 HLDGS INC COM COM 404139107 91 37,100 SH   SOLE   37,100 0 0
HLX 4 1/8 9/15/23 CONVERTIBLE BOND 42330PAJ6 225 200,000 PRN   SOLE   200,000 0 0
HOMETOWN BANKSHARES CORP COM COM 43787N108 507 35,436 SH   SOLE   35,436 0 0
HOPFED BANCORP INC COM COM 439734104 3,187 161,796 SH   SOLE   161,796 0 0
ICAHN ENTERPRISES LP DEPOSITRY COM 451100101 522 7,200 SH   SOLE   7,200 0 0
ICPT 3 1/4 7/1/23 CONVERTIBLE BOND 45845PAA6 198 200,000 PRN   SOLE   200,000 0 0
IMMUNE DESIGN CORP COM COM 45252L103 3,461 591,650 SH   SOLE   591,650 0 0
INFRAREIT INC COM COM 45685L100 4,128 196,845 SH   SOLE   196,845 0 0
INTEGRATED DEVICE TECH INC COM COM 458118106 34,907 712,528 SH   SOLE   712,528 0 0
INTERACTIVE BROKERS COM 45841N107 1,660 32,000 SH   SOLE   32,000 0 0
INTERNAP CORP COM PAR COM 45885A409 50 10,000 SH   SOLE   10,000 0 0
INTERNATIONAL SPEEDWAY A COM 460335201 3,125 71,624 SH   SOLE   71,624 0 0
KKR & CO INC CL A COM 48251W104 2,875 122,410 SH   SOLE   122,410 0 0
LENNAR B SHARES COM 526057302 6,964 178,016 SH   SOLE   178,016 0 0
LF CAP ACQUISITION CORP CL A COM 50200K108 4,502 447,993 SH   SOLE   447,993 0 0
LF CAP ACQUISITION CORP WT EXP WARRANT AND RIGH 50200K116 157 447,993 SH   SOLE   447,993 0 0
LIBERTY BRAVES GROUP C COM 531229888 315 11,339 SH   SOLE   11,339 0 0
LIBERTY SIRIUS GROUP C COM 531229607 23,671 619,000 SH   SOLE   619,000 0 0
LORAL SPACE & COMMUNICATNS ICO COM 543881106 5,446 151,068 SH   SOLE   151,068 0 0
LUXOFT HLDG INC ORD SHS CL A COM G57279104 12,640 215,300 SH   SOLE   215,300 0 0
MAXWELL TECHNOLOGIES INC COM COM 577767106 3,976 889,400 SH   SOLE   889,400 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 210 250,000 PRN   SOLE   250,000 0 0
MEGALITH FINANCIAL ACQUISITION COM 58518F109 4,097 410,500 SH   SOLE   410,500 0 0
MELLANOX TECHNOLOGIES LTD SHS COM M51363113 19,675 166,233 SH   SOLE   166,233 0 0
MGM RESORTS INTERNATIONAL COM 552953101 282 11,000 SH   SOLE   11,000 0 0
MITEK SYS INC COM NEW COM 606710200 1,294 105,720 SH   SOLE   105,720 0 0
MONEYGRAM INTERNATIONAL INC CO COM 60935Y208 581 284,666 SH   SOLE   284,666 0 0
MONOCLE ACQUISITION CORP UNIT UNITS 609754205 2,866 284,300 SH   SOLE   284,300 0 0
MUELLER INDS INC COM COM 624756102 219 7,000 SH   SOLE   7,000 0 0
MULTI-COLOR CORP COM 625383104 8,379 167,950 SH   SOLE   167,950 0 0
NASDAQ STOCK MARKET INC COM COM 631103108 525 6,000 SH   SOLE   6,000 0 0
NATIONAL FUEL GAS CO N J COM COM 636180101 421 6,900 SH   SOLE   6,900 0 0
NAVIGATORS GROUP INC COM COM 638904102 6,049 86,569 SH   SOLE   86,569 0 0
NEBULA ACQUISITION CORP COM CL COM 629076100 2,780 279,093 SH   SOLE   279,093 0 0
NEBULA ACQUISITION CORP WT EXP WARRANT AND RIGH 629076118 70 93,031 SH   SOLE   93,031 0 0
NEWELL BRANDS COM 651229106 153 10,000 SH   SOLE   10,000 0 0
NEWMONT MINING CORP HOLDING CO COM 651639106 322 9,000 SH   SOLE   9,000 0 0
NIGHTSTAR THERAPEUTICS PLC ADR COM 65413A101 7,417 292,353 SH   SOLE   292,353 0 0
NXP SEMICONDUCTORS N V COM COM N6596X109 2,909 32,911 SH   SOLE   32,911 0 0
OAKTREE CAP GROUP LLC UNIT CL UNITS 674001201 7,912 159,347 SH   SOLE   159,347 0 0
OPKO HEALTH INC COM COM 68375N103 26 10,000 SH   SOLE   10,000 0 0
OSIRIS THERAPEUTICS INC COM COM 68827R108 1,737 91,411 SH   SOLE   91,411 0 0
PACIFIC BIOSCIENCES CALIF INCO COM 69404D108 8,742 1,209,114 SH   SOLE   1,209,114 0 0
PAN AMERICAN SILVER CORP COM COM 697900108 1,334 100,655 SH   SOLE   100,655 0 0
PIVOTAL ACQ CORP COM 72583A200 2,176 213,500 SH   SOLE   213,500 0 0
PNC FINANCIAL CORP COM 693475105 442 3,600 SH   SOLE   3,600 0 0
QUANTENNA COMMUNICATIONS INCCO COM 74766D100 3,100 127,400 SH   SOLE   127,400 0 0
RDUS 3000 09/01/24 CONVERTIBLE BOND 750469AA6 167 200,000 PRN   SOLE   200,000 0 0
RED HAT INC COM 756577102 45,270 247,781 SH   SOLE   247,781 0 0
RYMAN HOSPITALITY PPTYS INC CO COM 78377T107 666 8,100 SH   SOLE   8,100 0 0
SCRIPPS E W CO OHIO CL A COM 811054402 294 14,000 SH   SOLE   14,000 0 0
SI FINL GROUP INC MD COM COM 78425V104 2,886 223,576 SH   SOLE   223,576 0 0
SOCIAL CAP HEDOSOPHIA HLDGS CL COM G8250R103 3,984 390,961 SH   SOLE   390,961 0 0
SOCIAL CAP HEDOSOPHIA HLDGS WT WARRANT AND RIGH G8250R129 59 73,713 SH   SOLE   73,713 0 0
SONY CORP ADR (BSNE US) COM 835699307 929 22,000 SH   SOLE   22,000 0 0
SPARK THERAPEUTICS INC COM COM 84652J103 30,783 270,311 SH   SOLE   270,311 0 0
SPWR 4 1/15/23 CONVERTIBLE BOND 867652AL3 432 525,000 PRN   SOLE   525,000 0 0
SUNOCO LP COM U REP LP COM 86765K109 212 6,800 SH   SOLE   6,800 0 0
SUNTRUST BANKS INC COM 867914103 4,802 81,050 SH   SOLE   81,050 0 0
TELEPHONE DATA SYS COM 879433829 612 19,900 SH   SOLE   19,900 0 0
TENZING ACQUISITION CORP ORD S COM G8708A116 1,959 194,500 SH   SOLE   194,500 0 0
TENZING ACQUISITION CORP WT EX WARRANT AND RIGH G8708A108 31 194,500 SH   SOLE   194,500 0 0
TESLA MOTORS 1.250 03/1/21 CONVERTIBLE BOND 88160RAC5 411 400,000 PRN   SOLE   400,000 0 0
TEXAS INSTRUMENTS INC COM 882508104 318 3,000 SH   SOLE   3,000 0 0
TEXAS PAC LD TR SUB CTF PROP I COM 882610108 309 400 SH   SOLE   400 0 0
TEXTRON INC COM 883203101 274 5,400 SH   SOLE   5,400 0 0
THE MEDICINES CO. 2.5 1/15/22 CONVERTIBLE BOND 584688AE5 251 250,000 PRN   SOLE   250,000 0 0
THERMO FISHER SCIENTIFIC INC COM 883556102 205 750 SH   SOLE   750 0 0
TIVITY HEALTH INC COM COM 88870R102 634 36,129 SH   SOLE   36,129 0 0
TKK SYMPHONY ACQUISITION CORRT WARRANT AND RIGH G88950137 67 208,580 SH   SOLE   208,580 0 0
TKK SYMPHONY ACQUISITION CORWT WARRANT AND RIGH G88950129 35 208,580 SH   SOLE   208,580 0 0
TKK SYMPHONY ACQUISTION COR COM G88950103 3,296 332,580 SH   SOLE   332,580 0 0
TRAVELPORT WORLDWIDE LTD SHS COM G9019D104 8,713 553,912 SH   SOLE   553,912 0 0
TRIBUNE MEDIA CO - A COM 896047503 22,979 498,023 SH   SOLE   498,023 0 0
TRINE ACQ CORP COM 89628U207 992 99,000 SH   SOLE   99,000 0 0
TRINITY MERGER CORP COM CL A COM 89653L106 4,324 423,100 SH   SOLE   423,100 0 0
TRINITY MERGER CORP WT EXP 051 WARRANT AND RIGH 89653L114 152 423,100 SH   SOLE   423,100 0 0
U S G CORP COM NEW COM 903293405 19,803 457,342 SH   SOLE   457,342 0 0
ULTIMATE SOFTWARE GROUP INC CO COM 90385D107 23,345 70,716 SH   SOLE   70,716 0 0
UQM TECHNOLOGIES INC COM COM 903213106 1,127 683,200 SH   SOLE   683,200 0 0
VECTOIQ ACQUISITION CORP COM COM 92243N103 3,417 342,000 SH   SOLE   342,000 0 0
VECTOIQ ACQUISITION CORP WT EX WARRANT AND RIGH 92243N111 120 279,200 SH   SOLE   279,200 0 0
VEON LTD ADR COM 91822M106 46 22,000 SH   SOLE   22,000 0 0
VERIZON COMMUNICATIONS COM 92343V104 1,597 27,000 SH   SOLE   27,000 0 0
VERSUM MATLS INC COM COM 92532W103 6,812 136,905 SH   SOLE   136,905 0 0
VIACOM INC NEW CL A COM 92553P102 396 12,200 SH   SOLE   12,200 0 0
VULCAN MATLS CO COM COM 929160109 284 2,400 SH   SOLE   2,400 0 0
WABCO HLDGS INC COM COM 92927K102 11,716 88,872 SH   SOLE   88,872 0 0
WEATHERFORD INTERNATIONAL PLC COM G48833100 38 55,000 SH   SOLE   55,000 0 0
WELLS FARGO CV PFD L 7500 CONVERTIBLE PREF 949746804 325 250 SH   SOLE   250 0 0
WELLS FARGO CO NEW COM 949746101 3,947 81,693 SH   SOLE   81,693 0 0
WORLDPAY INC COM 981558109 5,906 52,034 SH   SOLE   52,034 0 0
WRIGHT MED GROUP N V CVR WARRANT AND RIGH N96617126 0 23,569 SH   SOLE   23,569 0 0