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
ABERDEEN EMERGING MKT EQ COM 00301W105 2,365 372,420 SH   SOLE   372,420 0 0
ABERDEEN JAPAN EQUITY FD COM 00306J109 1,734 267,186 SH   SOLE   267,186 0 0
ADAMS EXPRESS COMPANY COM 006212104 4,871 386,007 SH   SOLE   386,007 0 0
ALBERTON ACQUISITIONCORP UNITS G35006116 1,506 150,000 SH   SOLE   150,000 0 0
ALLEGRO MERGER CORP. COM 01749N103 2,492 255,552 SH   SOLE   255,552 0 0
ALLEGRO MERGER CORP Rights 01749N129 155 233,080 SH   SOLE   233,080 0 0
ALLEGRO MERGER CORP Warrants 01749N111 67 223,830 SH   SOLE   223,830 0 0
ALLIANCE CALIF MUNI INCOME COM 018546101 14,848 1,085,386 SH   SOLE   1,085,386 0 0
ASIA PAC FD INC COM COM 044901106 782 68,441 SH   SOLE   68,441 0 0
BARINGS BDC INC COM 06759L103 123 13,666 SH   SOLE   13,666 0 0
BIG ROCK PARTNERS ACQUISTION COM 089482103 2,411 237,225 SH   SOLE   237,225 0 0
BIG ROCK PARTNERS ACQUISTION-RT Rights 089482129 96 244,162 SH   SOLE   244,162 0 0
BIG ROCK PARTNERS ACQUISTION-CW22 Warrants 089482111 85 143,131 SH   SOLE   143,131 0 0
BISON CAPITAL ACQUISITION COM G1142P104 2,340 225,111 SH   SOLE   225,111 0 0
BISON CAPITAL ACQUISITION CO-RT Rights G1142P138 55 195,414 SH   SOLE   195,414 0 0
BISON CAPITAL ACQUISITION CO-CW22 Warrants G1142P112 20 97,707 SH   SOLE   97,707 0 0
BLACKROCK DEBT STAT COM 09255R202 926 94,732 SH   SOLE   94,732 0 0
BLACK RIDGE ACQUISITION CORP COM COM 09216T107 4,461 444,292 SH   SOLE   444,292 0 0
BLACK RIDGE ACQUISITION CORP RTS EXP Rights 09216T123 111 370,875 SH   SOLE   370,875 0 0
BLACK RIDGE ACQUISTION CORP CW Warrants 09216T115 113 353,600 SH   SOLE   353,600 0 0
BLACKROCK INCOME TR COM 09247F100 1,028 182,356 SH   SOLE   182,356 0 0
BLACKROCK NEW YORK MUN INCOME QUALITY TR COM COM 09249U105 3,095 256,234 SH   SOLE   256,234 0 0
BOULDER GROWTH & INCM FD INC COM 101507101 7,223 692,485 SH   SOLE   692,485 0 0
BRANDYWINE GLOBAL INCOME COM 10537L104 4,827 465,027 SH   SOLE   465,027 0 0
BROOKFIELD PROPERTY REIT I-A COM 11282X103 4,424 274,755 SH   SOLE   274,755 0 0
CENTRAL SECS CORP COM COM 155123102 13,595 547,534 SH   SOLE   547,534 0 0
CF FIN ACQUISITION CORP UNIT UNITS 12528N206 750 75,000 SH   SOLE   75,000 0 0
CHASERG TECY ACQ UTS UNITS 16166A202 100 10,000 SH   SOLE   10,000 0 0
CHINA FUND INC COM 169373107 11,616 687,746 SH   SOLE   687,746 0 0
CHURCHILL CAP CORP UNIT Units 17142R202 101 10,000 SH   SOLE   10,000 0 0
CM SEVEN STAR ACQUISTION SHS G2345N102 5,169 551,779 SH   SOLE   551,779 0 0
CM SEVEN STAR ACQUISITION CORP RTS EXP 2018 Rights G2345N136 191 509,739 SH   SOLE   509,739 0 0
CM SEVEN STAR ACQUISITION CORP WTS EXP 08/21/2022 Warrants G2345N110 42 280,143 SH   SOLE   280,143 0 0
CONCRETE PUMPING HLDGS INC WARRANT EXP 08/01/2022 Warrants 206704116 18 23,500 SH   SOLE   23,500 0 0
CONSTELLATION ALPHA CAPITAL CORP SHS G2379F108 1,602 156,892 SH   SOLE   156,892 0 0
CONSTELLATION ALPHA CAPITAL-RT Rights G2379F132 8 54,854 SH   SOLE   54,854 0 0
CONSTELLATION ALPHA CAPITAL-CW22 Warrants G2379F116 6 48,854 SH   SOLE   48,854 0 0
DD3 ACQUISTION UNITS UNITS G2692M129 200 20,000 SH   SOLE   20,000 0 0
DIVIDEND & INCOME FD COM NEW COM NEW 25538A204 3,736 392,043 SH   SOLE   392,043 0 0
DTF TAX FREE INCOME COM 23334J107 1,858 150,107 SH   SOLE   150,107 0 0
DUFF & PHELPS UTIL & CORP BOND COM 26432k108 2,682 326,757 SH   SOLE   326,757 0 0
EATON VANCE MUN BD FD II COM 27827k109 4,154 377,331 SH   SOLE   377,331 0 0
EDTECHX HLDGS ACQUISITION CORP UNIT UNITS 28138X202 1,369 137,000 SH   SOLE   137,000 0 0
EQUUS TOTAL RETURN INC COM 294766100 933 476,164 SH   SOLE   476,164 0 0
FIRST TR ABERDEN GLBL OPP FD COM 337319107 608 64,795 SH   SOLE   64,795 0 0
FORUM MERGER II CORP Units 34986F202 2,011 198,743 SH   SOLE   198,743 0 0
FORUM MERGER II CORPCL A COM 34986F103 3,543 357,482 SH   SOLE   357,482 0 0
FORUM MERGER II CORPWT EXP 09/30/2025 Warrants 34986F111 64 142,539 SH   SOLE   142,539 0 0
GENERAL AMERICAN INVESTORS COM 368802104 10,653 374,568 SH   SOLE   374,568 0 0
GIGCAPITAL INC COM 37518N106 2,967 293,722 SH   SOLE   293,722 0 0
GIGCAPITAL INC-RTS Rights 37518N114 75 273,652 SH   SOLE   273,652 0 0
GIGCAPITAL INC-CW23 Warrants 37518N122 52 206,749 SH   SOLE   206,749 0 0
GORDON POINT ACQ COM 382788107 330 33,000 SH   SOLE   33,000 0 0
GRAF INDL CORP UNIT UNITS 384278206 610 61,003 SH   SOLE   61,003 0 0
GREAT ELM CAP CORP COM 390320109 251 31,543 SH   SOLE   31,543 0 0
GREENLAND ACQUISITION CORP USDORD SHS ISIN#VGG409811392 COM G40981139 490 49,500 SH   SOLE   49,500 0 0
GREENLAND ACQUISITION CORP USDRT 1/10 OF 1 ORD SHSISIN#VGG409811137 Rights G40981113 10 49,500 SH   SOLE   49,500 0 0
GREENLAND ACQUISITION CORP USDRED WT PUR 1/2 ONE ORD SH ISIN#VGG409811053 Warrants G40981105 8 49,500 SH   SOLE   49,500 0 0
GSV CAPITAL CORP COM 36191J101 251 48,058 SH   SOLE   48,058 0 0
HAYMAKER ACQ COM 420870107 946 94,546 SH   SOLE   94,546 0 0
HAYMAKER ACQUISITION CORP. WTS Warrants 420870115 249 52,956 SH   SOLE   52,956 0 0
HIGH INCOME SECS SHS BEN INT 42968F108 16,754 1,882,423 SH   SOLE   1,882,423 0 0
HIGHLAND FLOATING FLOATING RATE OPPORTUNITIES FD SH BEN INT COM 43010E404 1,577 22,863 SH   SOLE   22,863 0 0
HILL INTL INC COM COM 431466101 7,779 2,525,797 SH   SOLE   2,525,797 0 0
HL ACQUISITIONS CORP COM G4603R106 344 35,081 SH   SOLE   35,081 0 0
HL ACQUISITIONS C 26 WTS WARRANTS EXP 07/01/26 Warrants G4603R122 11 35,081 SH   SOLE   35,081 0 0
HL ACQUISITION Units G4603R114 144 13,950 SH   SOLE   13,950 0 0
HUNTER MARITIME ACQUISITION WTS W EXP 99/99/999 Y37828129 12 113,735 SH   SOLE   113,735 0 0
INVESCO HIGH INCOME TRUST COM 46131F101 3,525 281,331 SH   SOLE   281,331 0 0
ISHARES MSCI EMERGING MKT ETF COM 464287234 1,732 44,350 SH   SOLE   44,350 0 0
JAPAN SMALLER CAPTLZTN FD INC COM 47109U104 3,306 397,335 SH   SOLE   397,335 0 0
KBL MERGER CORP IV COM 48242A104 5,472 536,510 SH   SOLE   536,510 0 0
KBL MERGER CORP IV-RTS Rights 48242A120 200 521,535 SH   SOLE   521,535 0 0
KBL MERGER CORP IV-CW22 Warrants 48242A112 48 530,535 SH   SOLE   530,535 0 0
LAZARD WORLD DIVIDEND & INCOME COM 521076109 4,616 541,802 SH   SOLE   541,802 0 0
LEGACY ACQUISITION Units 524643202 116 11,400 SH   SOLE   11,400 0 0
LEGACY ACQUISITION COM 524643103 963 98,100 SH   SOLE   98,100 0 0
LEISURE ACQUISITION COM 52539T107 1,143 116,391 SH   SOLE   116,391 0 0
LEISURE ACQUISITI 19 WTS WARRANTS EXP 12/05/19 Warrants 52539T011 54 68,615 SH   SOLE   68,615 0 0
LF CAPITAL ACQUISTION Units 50200K207 1,412 139,249 SH   SOLE   139,249 0 0
LF CAP ACQUISITION CORP COM 50200K108 1,482 151,500 SH   SOLE   151,500 0 0
LF CAPITAL ACQUIS 25 WTS WARRANTS EXP 06/22/25 Warrants 50200K116 65 151,500 SH   SOLE   151,500 0 0
LONGEVITY ACQUISTION CORP COM G56372132 998 99,286 SH   SOLE   99,286 0 0
LONGEVITY ACQUISTION CORP Rights G56372124 21 99,286 SH   SOLE   99,286 0 0
LONGEVITY ACQUISTION CORP Units G56372108 218 21,500 SH   SOLE   21,500 0 0
LONGEVITY ACQUISTION CORP Warrants G56372116 19 105,456 SH   SOLE   105,456 0 0
MEXICO EQUITY & INCOME COM 592834105 1,836 182,281 SH   SOLE   182,281 0 0
MODERN MEDIA ACQUISITION COR COM 60765P103 2,743 322,486 SH   SOLE   322,486 0 0
MODERN MEDIA ACQUISITION-RTS Rights 60765P129 78 311,607 SH   SOLE   311,607 0 0
MODERN MEDIA ACQUISITIO-CW22 Warrants 60765P111 45 166,578 SH   SOLE   166,578 0 0
MORGAN STANLEY ASIA PAC FD COM 61744U106 5,529 336,107 SH   SOLE   336,107 0 0
MORGAN STANLEY EMER MKT COM 61744G107 3,703 229,864 SH   SOLE   229,864 0 0
MTECH ACQUISITION CORP. COM 55378W107 1,936 191,906 SH   SOLE   191,906 0 0
MTECH ACQUISITION CORP Warrants 55378W115 113 204,934 SH   SOLE   204,934 0 0
MUDRICK CAPITAL ACQUISTION Units 624745204 705 67,142 SH   SOLE   67,142 0 0
MUDRICK CAPITAL ACQUISTION COM 624745105 559 56,682 SH   SOLE   56,682 0 0
MUDRICK CAPITAL ACQUISTION Warrants 624745113 26 56,682 SH   SOLE   56,682 0 0
MVC CAPITAL INC COM 553829102 1,989 242,311 SH   SOLE   242,311 0 0
NUVEEN CONNECTICUT QUALITY MUNICIPAL INCOME FUND COM 67060D107 3,855 342,376 SH   SOLE   342,376 0 0
NUVEEN PFD CONV INCOME COM 67073D102 197 26,600 SH   SOLE   26,600 0 0
OPES ACQUISITION CORP COM COM 68373P100 684 68,870 SH   SOLE   68,870 0 0
OPES ACQUISITION CORP WT EXP EXP 03/13/23 Warrants 68373P118 19 66,670 SH   SOLE   66,670 0 0
OPES ACQUISTION CORP. Units 68373P209 632 61,519 SH   SOLE   61,519 0 0
ORGANOGENESIS HLDGS INC WT EXP EXP 12/10/23 Warrants 68621F110 19 145,240 SH   SOLE   145,240 0 0
PENSARE ACQUISITION CORP COM 70957E105 2,099 207,208 SH   SOLE   207,208 0 0
PENSARE ACQUISITION CORP Rights 70957E121 35 119,019 SH   SOLE   119,019 0 0
PENSARE ACQUISITION CORP Warrants 70957E113 4 21,154 SH   SOLE   21,154 0 0
PHUNWARE Warrants 71948P118 10 40,413 SH   SOLE   40,413 0 0
PURE ACQUISTION COM 74621Q106 6,533 663,936 SH   SOLE   663,936 0 0
PURE ACQUISTION WTS Warrants 74621Q114 749 657,339 SH   SOLE   657,339 0 0
REEBONZ HOLDING COM G7457R106 45 21,544 SH   SOLE   21,544 0 0
REEBONZ HOLDING L 23 WTF WARRANTS EXP 12/19/23 Warrants G7457R114 26 124,762 SH   SOLE   124,762 0 0
REGALWOOD GLOBAL ENERGY COM G74760102 184 18,696 SH   SOLE   18,696 0 0
ROYCE VALUE TRUST COM 780910105 1,309 110,925 SH   SOLE   110,925 0 0
SCHULTZ SPEC PURP UNITS 80821R208 647 65,000 SH   SOLE   65,000 0 0
SENTINEL ENERGY SVCS INC DEL CL A COM 81728P105 275 27,396 SH   SOLE   27,396 0 0
SENTINEL ENERGY SVCS INC DEL WT Warrants 81728P113 9 10,802 SH   SOLE   10,802 0 0
SMAAASH ENT COM 831550108 44 21,544 SH   SOLE   21,544 0 0
SMAAASH ENT Warrants 831550116 41 235,028 SH   SOLE   235,028 0 0
SOURCE CAPITAL INC COM 836144105 7,717 237,079 SH   SOLE   237,079 0 0
SPDR S&P 500 COM 78462F103 5,163 20,659 SH   SOLE   20,659 0 0
SWISS HELVETIA FUND COM 870875101 1,153 167,088 SH   SOLE   167,088 0 0
TAIWAN FD INC COM 874036106 6,444 425,044 SH   SOLE   425,044 0 0
TENZING ACQUISTION Com G8708A116 533 54,305 SH   SOLE   54,305 0 0
TENZING ACQUISITION CORP Units G8708A124 926 91,989 SH   SOLE   91,989 0 0
TENZING ACQUISTION Warrants G8708A108 18 54,305 SH   SOLE   54,305 0 0
THUNDER BRIDGE ACQUISTION Units G8857R118 1,960 193,204 SH   SOLE   193,204 0 0
TIBERIUS ACQUISTION CORP. COM 88633A107 1,333 136,000 SH   SOLE   136,000 0 0
TIBERIUS ACQUISTION Units 88633A206 1,454 142,445 SH   SOLE   142,445 0 0
TIBERIUS ACQUISTION CORP. Warrants 88633A115 53 136,000 SH   SOLE   136,000 0 0
TKK SYMPHONY ACQUISTION COM G88950103 3,162 327,662 SH   SOLE   327,662 0 0
TKK SYMPHONY ACQUISITION CORP RTS rights G88950137 227 658,776 SH   SOLE   658,776 0 0
TKK SYMPHONY ACQUISTION WT Warrants G88950129 99 656,776 SH   SOLE   656,776 0 0
TOTTENHAM ACQUISTION COM G8959N106 514 52,474 SH   SOLE   52,474 0 0
TOTTENHAM ACQUISTION Rights G8959N122 12 52,474 SH   SOLE   52,474 0 0
TOTTENHAM ACQUISTION Unit G8959N130 59 58,630 SH   SOLE   58,630 0 0
TOTTENHAM ACQUISTION Warrants G8959N114 6 52,474 SH   SOLE   52,474 0 0
TRI CONTL CORP COM COM 895436103 3,591 152,665 SH   SOLE   152,665 0 0
TRIDENT ACQUISTION CORP COM 89615T106 2,063 206,900 SH   SOLE   206,900 0 0
TRIDENT ACQUISTION UNITS 89615T205 1,086 177,262 SH   SOLE   177,262 0 0
TRIDENT ACQUISITIONSCORP WTS Warrants 89615T114 61 204,170 SH   SOLE   204,170 0 0
TRINITY MERGER CORP COM 89653L106 1,980 206,038 SH   SOLE   206,038 0 0
TRINITY MERGER CORP Warrants 89653L114 103 260,000 SH   SOLE   260,000 0 0
TRINITY PLACE HOLDINGS INC COM 89656D101 1,541 355,006 SH   SOLE   355,006 0 0
TWELVE SEAS INVESTMENT Units G9145A123 830 81,000 SH   SOLE   81,000 0 0
UNIONACQUISITION CORP. Common Stocks G9366W101 3,157 313,480 SH   SOLE   313,480 0 0
UNIONACQUISITION CORP. Rights G9366W135 119 313,480 SH   SOLE   313,480 0 0
UNIONACQUISITION CORP. Warrants G9366W127 78 313,480 SH   SOLE   313,480 0 0
VANTAGE ENERGY ACQUISITION CORP COM CL A com 92211L105 239 31,913 SH   SOLE   31,913 0 0
VANTAGE ENERGY ACQUISITION CORP WTS Warrants 92211L113 11 22,800 SH   SOLE   22,800 0 0
VECTOIQ ACQUISTION CORP COM 92243N103 524 54,025 SH   SOLE   54,025 0 0
VECTOIQ ACQUISTION CORP Warrants 92243N111 23 54,025 SH   SOLE   54,025 0 0
VECTOIQ ACQUISTION Units 92243N202 395 39,181 SH   SOLE   39,181 0 0