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 2,721 374,308 SH   SOLE   374,308 0 0
ABERDEEN JAPAN EQUITY FD COM 00306J109 809 115,992 SH   SOLE   115,992 0 0
ACAMAR PARTNERS AC 25UTS UNITS 004285201 1,414 141,400 SH   SOLE   141,400 0 0
ADAMS EXPRESS COMPANY COM 006212104 5,488 380,079 SH   SOLE   380,079 0 0
ALBERTON ACQUISITIONCORP COM G35006108 1,294 130,000 SH   SOLE   130,000 0 0
ALLEGRO MERGER CORP. COM 01749N103 2,223 223,830 SH   SOLE   223,830 0 0
ALLEGRO MERGER CORP Rights 01749N129 105 388,628 SH   SOLE   388,628 0 0
ALLEGRO MERGER CORP Warrants 01749N111 101 393,628 SH   SOLE   393,628 0 0
ALLIANCE CALIF MUNI INCOME COM 018546101 14,964 1,012,453 SH   SOLE   1,012,453 0 0
AMCI ACQUISITION CORP Units 00165R200 1,562 155,200 SH   SOLE   155,200 0 0
ANDINA ACQUISTION CORP III com G04415108 539 163,850 SH   SOLE   163,850 0 0
ANDINA ACQUISITION CORP III Rights G04415132 56 163,850 SH   SOLE   163,850 0 0
ANDINA ACQUISITION CORP III UNITS Units G04415116 278 27,500 SH   SOLE   27,500 0 0
ANDINA ACQUISITION CORP III Warrants G04415124 8 42,900 SH   SOLE   42,900 0 0
BIG ROCK PARTNERS ACQUISTION COM 089482103 2,726 263,447 SH   SOLE   263,447 0 0
BIG ROCK PARTNERS ACQUISTION-RT Rights 089482129 64 199,342 SH   SOLE   199,342 0 0
BIG ROCK PARTNERS ACQUISTION-CW22 Warrants 089482111 22 120,721 SH   SOLE   120,721 0 0
BIOCERES CROP SOLUTIONS Com G1117K114 87 16,600 SH   SOLE   16,600 0 0
BIOCERES CROP SOLUTIONS Warrants G1117K106 47 173,464 SH   SOLE   173,464 0 0
BISON CAPITAL ACQUISITION CO-RT Rights G1142P138 57 163,836 SH   SOLE   163,836 0 0
BISON CAPITAL ACQUISITION CO-CW22 Warrants G1142P112 6 31,918 SH   SOLE   31,918 0 0
BLACKROCK DEBT STAT COM 09255R202 1,969 183,638 SH   SOLE   183,638 0 0
BLACK RIDGE ACQUISITION CORP COM COM 09216T107 4,099 401,655 SH   SOLE   401,655 0 0
BLACK RIDGE ACQUISITION CORP RTS EXP Rights 09216T123 106 302,785 SH   SOLE   302,785 0 0
BLACK RIDGE ACQUISTION CORP CW Warrants 09216T115 88 293,540 SH   SOLE   293,540 0 0
BLACKROCK NEW YORK MUN INCOME QUALITY TR COM COM 09249U105 2,485 194,070 SH   SOLE   194,070 0 0
BOULDER GROWTH & INCM FD INC COM 101507101 7,532 698,685 SH   SOLE   698,685 0 0
BOXWOOD MERGER CORP Units 10316T200 1,122 111,450 SH   SOLE   111,450 0 0
BRANDYWINE GLOBAL INCOME COM 10537L104 6,739 604,953 SH   SOLE   604,953 0 0
BROOKFIELD PROPERTY REIT I-A COM 11282X103 1,450 70,751 SH   SOLE   70,751 0 0
CENTRAL SECS CORP COM COM 155123102 9,881 344,881 SH   SOLE   344,881 0 0
CF FIN ACQUISITION CORP UNIT UNITS 12528N206 765 75,000 SH   SOLE   75,000 0 0
CHASERG TECY ACQ UTS UNITS 16166A202 104 10,300 SH   SOLE   10,300 0 0
CM SEVEN STAR ACQUISTION SHS G2345N102 3,313 461,237 SH   SOLE   461,237 0 0
CM SEVEN STAR ACQUISITION CORP RTS EXP 2018 Rights G2345N136 95 286,403 SH   SOLE   286,403 0 0
CM SEVEN STAR ACQUISITION CORP WTS EXP 08/21/2022 Warrants G2345N110 40 237,403 SH   SOLE   237,403 0 0
CONSTELLATION ALPHA CAPITAL-RT Rights G2379F132 6 46,960 SH   SOLE   46,960 0 0
CONSTELLATION ALPHA CAPITAL-CW22 Warrants G2379F116 3 40,960 SH   SOLE   40,960 0 0
DD3 ACQUISITION CORP F COM G2692M103 417 42,400 SH   SOLE   42,400 0 0
DD3 ACQUISITION C 23 WTF Warrants G2692M111 12 42,400 SH   SOLE   42,400 0 0
DIAMONDPEAK HLDGS CORP UNIT 1 COM CL A& 1/3 RED WT EXP Units 25280H209 1,451 144,920 SH   SOLE   144,920 0 0
DIVIDEND & INCOME FD COM NEW COM NEW 25538A204 4,519 397,817 SH   SOLE   397,817 0 0
DTF TAX FREE INCOME COM 23334J107 1,822 137,755 SH   SOLE   137,755 0 0
DUFF & PHELPS UTIL & CORP BOND COM 26432k108 2,338 271,878 SH   SOLE   271,878 0 0
EATON VANCE MUN BD FD COM Com 27827k109 3,880 312,894 SH   SOLE   312,894 0 0
EDTECHX HLDGS ACQUISITION CORP COM COM 28138X103 1,036 102,825 SH   SOLE   102,825 0 0
EDTECHX HLDGS ACQUISITION CORP UNIT UNITS 28138X202 304 29,773 SH   SOLE   29,773 0 0
EDTECHX HLDGS ACQUISITION CORP Warrants 28138X111 20 102,825 SH   SOLE   102,825 0 0
EQUUS TOTAL RETURN INC COM 294766100 330 172,477 SH   SOLE   172,477 0 0
FIRST TR ABERDEN GLBL OPP FD COM 337319107 195 19,449 SH   SOLE   19,449 0 0
FORUM MERGER II CORPCL A COM 34986F103 1,648 166,343 SH   SOLE   166,343 0 0
FORUM MERGER II CORPWT EXP 09/30/2025 Warrants 34986F111 70 158,189 SH   SOLE   158,189 0 0
GENERAL AMERICAN INVESTORS COM 368802104 9,680 290,602 SH   SOLE   290,602 0 0
GIGCAPITAL INC COM 37518N106 1,752 171,750 SH   SOLE   171,750 0 0
GIGCAPITAL INC-RTS Rights 37518N114 78 119,504 SH   SOLE   119,504 0 0
GIGCAPITAL INC-CW23 Warrants 37518N122 45 158,155 SH   SOLE   158,155 0 0
GORDON POINT ACQ COM 382788107 337 33,000 SH   SOLE   33,000 0 0
GRAF INDL CORP UNIT UNITS 384278206 617 61,003 SH   SOLE   61,003 0 0
GREAT ELM CAP CORP COM 390320109 95 11,496 SH   SOLE   11,496 0 0
GREENLAND ACQUISITION CORP USDORD SHS ISIN#VGG409811392 COM G40981139 448 44,500 SH   SOLE   44,500 0 0
GREENLAND ACQUISITION CORP USDRT 1/10 OF 1 ORD SHSISIN#VGG409811137 Rights G40981113 15 49,500 SH   SOLE   49,500 0 0
GREENLAND ACQUISITION CORP USDRED WT PUR 1/2 ONE ORD SH ISIN#VGG409811053 Warrants G40981105 5 49,500 SH   SOLE   49,500 0 0
HIGH INCOME SECS SHS BEN INT 42968F108 1,989 220,000 SH   SOLE   220,000 0 0
HILL INTL INC COM COM 431466101 4,963 1,699,691 SH   SOLE   1,699,691 0 0
HL ACQUISITIONS CORP COM G4603R106 349 35,081 SH   SOLE   35,081 0 0
HL ACQUISITION Rights G4603R130 9 35,081 SH   SOLE   35,081 0 0
HL ACQUISITIONS C 26 WTS WARRANTS EXP 07/01/26 Warrants G4603R122 9 35,081 SH   SOLE   35,081 0 0
HL ACQUISITION Units G4603R114 145 13,950 SH   SOLE   13,950 0 0
HUNTER MARITIME ACQUISITION WTS W EXP 99/99/999 Y37828129 29 57,874 SH   SOLE   57,874 0 0
INVESCO DYNAMIC CR OPPORTUNITIES FD COM COM 46132R104 3,532 325,536 SH   SOLE   325,536 0 0
INVESCO EXCHANGE TRADED FD TR S&P 500EQUAL WEIGHT ETF COM 46137V357 11 108 SH   SOLE   108 0 0
INVESCO HIGH INCOME TRUST COM 46131F101 4,643 323,775 SH   SOLE   323,775 0 0
IVY HIGH INCOME OPPORTUN COM 465893105 114 8,428 SH   SOLE   8,428 0 0
JAPAN SMALLER CAPTLZTN FD INC COM 47109U104 3,104 353,923 SH   SOLE   353,923 0 0
KBL MERGER CORP IV-RTS Rights 48242A120 104 450,800 SH   SOLE   450,800 0 0
KBL MERGER CORP IV-CW22 Warrants 48242A112 51 459,800 SH   SOLE   459,800 0 0
LAZARD WORLD DIVIDEND & INCOME COM 521076109 3,678 370,743 SH   SOLE   370,743 0 0
LEGACY ACQUISITION Units 524643202 117 11,400 SH   SOLE   11,400 0 0
LEGACY ACQUISITION COM 524643103 934 92,984 SH   SOLE   92,984 0 0
LEISURE ACQUISITION COM 52539T107 1,334 133,389 SH   SOLE   133,389 0 0
LEISURE ACQUISITI 19 WTS WARRANTS EXP 12/05/19 Warrants 52539T011 31 61,964 SH   SOLE   61,964 0 0
LF CAPITAL ACQUISTION Units 50200K207 270 26,000 SH   SOLE   26,000 0 0
LF CAP ACQUISITION CORP COM 50200K108 1,786 177,750 SH   SOLE   177,750 0 0
LF CAPITAL ACQUIS 25 WTS WARRANTS EXP 06/22/25 Warrants 50200K116 53 151,500 SH   SOLE   151,500 0 0
LONGEVITY ACQUISTION CORP COM G56372132 1,157 115,786 SH   SOLE   115,786 0 0
LONGEVITY ACQUISTION CORP Rights G56372124 24 120,786 SH   SOLE   120,786 0 0
LONGEVITY ACQUISTION CORP Warrants G56372116 9 126,956 SH   SOLE   126,956 0 0
MEXICO EQUITY & INCOME COM 592834105 2,066 194,621 SH   SOLE   194,621 0 0
MFS CALIF MUN FD Com 59318C106 686 60,203 SH   SOLE   60,203 0 0
MODERN MEDIA ACQUISITION COR COM 60765P103 707 68,200 SH   SOLE   68,200 0 0
MODERN MEDIA ACQUISITION-RTS Rights 60765P129 84 255,500 SH   SOLE   255,500 0 0
MODERN MEDIA ACQUISITIO-CW22 Warrants 60765P111 43 137,356 SH   SOLE   137,356 0 0
MONOCLE ACQUISITION CORP UNIT Units 609754205 1,230 122,000 SH   SOLE   122,000 0 0
MORGAN STANLEY ASIA PAC FD COM 61744U106 7,121 435,553 SH   SOLE   435,553 0 0
MTECH ACQUISITION CORP. COM 55378W107 1,772 175,546 SH   SOLE   175,546 0 0
MTECH ACQUISITION CORP Warrants 55378W115 110 171,457 SH   SOLE   171,457 0 0
MUDRICK CAPITAL ACQUISTION COM 624745105 571 56,682 SH   SOLE   56,682 0 0
MUDRICK CAPITAL ACQUISTION Warrants 624745113 31 56,682 SH   SOLE   56,682 0 0
MVC CAPITAL INC COM 553829102 2,198 242,311 SH   SOLE   242,311 0 0
NEUBERGER BERMAN HIGH YIELD STRATEGIES FD INC COM Com 64128C106 8,154 722,246 SH   SOLE   722,246 0 0
NUVEEN CONNECTICUT QUALITY MUNICIPAL INCOME FUND COM 67060D107 8,120 673,877 SH   SOLE   673,877 0 0
NUVEEN OHIO QUALITY MUNICIPAL INCOME FD COM 670980101 3,636 251,252 SH   SOLE   251,252 0 0
NUVEEN CREDIT STRATEGIES COM 67073D102 3,327 430,778 SH   SOLE   430,778 0 0
OPES ACQUISITION CORP COM COM 68373P100 704 69,370 SH   SOLE   69,370 0 0
OPES ACQUISITION CORP WT EXP EXP 03/13/23 Warrants 68373P118 16 66,670 SH   SOLE   66,670 0 0
OPES ACQUISTION CORP. Units 68373P209 533 51,413 SH   SOLE   51,413 0 0
PIVOTAL ACQUISITION UNITS 72583A200 497 49,000 SH   SOLE   49,000 0 0
PENSARE ACQUISITION CORP COM 70957E105 1,656 161,583 SH   SOLE   161,583 0 0
PENSARE ACQUISITION CORP Rights 70957E121 30 102,819 SH   SOLE   102,819 0 0
PENSARE ACQUISITION CORP Warrants 70957E113 4 21,154 SH   SOLE   21,154 0 0
PURE ACQUISTION COM 74621Q106 6,130 611,804 SH   SOLE   611,804 0 0
PURE ACQUISTION WTS Warrants 74621Q114 586 535,276 SH   SOLE   535,276 0 0
REGALWOOD GLOBAL ENERGY COM G74760102 189 18,696 SH   SOLE   18,696 0 0
RMG ACQUISITION C 24 UTS EXP 02/07/24 UNITS 749641205 1,297 129,350 SH   SOLE   129,350 0 0
ROYCE VALUE TRUST COM 780910105 971 70,579 SH   SOLE   70,579 0 0
SCHULTZ SPEC PURP UNITS 80821R208 654 65,000 SH   SOLE   65,000 0 0
SENTINEL ENERGY SVCS INC DEL CL A COM 81728P105 266 26,454 SH   SOLE   26,454 0 0
SENTINEL ENERGY SVCS INC DEL WT Warrants 81728P113 7 10,802 SH   SOLE   10,802 0 0
SOURCE CAPITAL INC COM 836144105 6,107 169,644 SH   SOLE   169,644 0 0
SPDR S&P 500 COM 78462F103 538 1,906 SH   SOLE   1,906 0 0
SWISS HELVETIA FUND COM 870875101 1,184 155,364 SH   SOLE   155,364 0 0
TAIWAN FD INC COM 874036106 7,003 390,990 SH   SOLE   390,990 0 0
TENZING ACQUISTION Com G8708A116 547 54,305 SH   SOLE   54,305 0 0
TENZING ACQUISTION Warrants G8708A108 9 54,305 SH   SOLE   54,305 0 0
THUNDER BRDG ACQUISITION LTD USD CL A ORD SHS COM G8857R100 1,596 156,452 SH   SOLE   156,452 0 0
THUNDER BRDG ACQUISITION LTD WTS TO PUR SHS ISIN#KYG8857R1267 Warrants G8857R126 98 136,252 SH   SOLE   136,252 0 0
TIBERIUS ACQUISTION CORP. COM 88633A107 1,638 162,500 SH   SOLE   162,500 0 0
TIBERIUS ACQUISTION CORP. Warrants 88633A115 61 137,500 SH   SOLE   137,500 0 0
TKK SYMPHONY ACQUISTION COM G88950103 2,975 300,239 SH   SOLE   300,239 0 0
TKK SYMPHONY ACQUISITION CORP RTS rights G88950137 192 600,853 SH   SOLE   600,853 0 0
TKK SYMPHONY ACQUISTION WT Warrants G88950129 83 598,853 SH   SOLE   598,853 0 0
TOTTENHAM ACQUISTION COM G8959N106 527 52,474 SH   SOLE   52,474 0 0
TOTTENHAM ACQUISTION Rights G8959N122 14 52,474 SH   SOLE   52,474 0 0
TOTTENHAM ACQUISTION Warrants G8959N114 6 52,474 SH   SOLE   52,474 0 0
TRI CONTL CORP COM COM 895436103 1,833 69,686 SH   SOLE   69,686 0 0
TRIDENT ACQUISTION CORP COM 89615T106 2,108 206,900 SH   SOLE   206,900 0 0
TRIDENT ACQUISITIONSCORP WTS Warrants 89615T114 33 204,170 SH   SOLE   204,170 0 0
TRINITY MERGER CORP COM 89653L106 1,674 163,767 SH   SOLE   163,767 0 0
TRINITY MERGER CORP Warrants 89653L114 88 244,494 SH   SOLE   244,494 0 0
TRINITY PLACE HOLDINGS INC COM 89656D101 925 231,323 SH   SOLE   231,323 0 0
TUSCAN HLDGS CORP UNIT 1 COM & 1 WT EXP UNITS 90069K203 521 50,000 SH   SOLE   50,000 0 0
TWELVE SEAS INVESTMENT Units G9145A123 846 81,000 SH   SOLE   81,000 0 0
VANTAGE ENERGY ACQUISITION CORP COM CL A com 92211L105 3,488 341,313 SH   SOLE   341,313 0 0
VANTAGE ENERGY ACQUISITION CORP WTS Warrants 92211L113 5 22,800 SH   SOLE   22,800 0 0
VECTOIQ ACQUISTION CORP COM 92243N103 540 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 344 32,956 SH   SOLE   32,956 0 0
WEALTHBRIDGE ACQUISITION LTD USD UNITS Units G4887W102 729 72,438 SH   SOLE   72,438 0 0
WESTERN ASSET GLD HI INCOME COM 95766B109 280 29,800 SH   SOLE   29,800 0 0
WESTERN ASSET HIGH INCM FD II COM 95766J102 942 145,345 SH   SOLE   145,345 0 0
WESTERN ASSET HI INC OPP COM 95766K109 498 103,144 SH   SOLE   103,144 0 0
8I ENTERPRISES AC 25 UTF EXP 10/01/25 Com G2956M138 402 40,000 SH   SOLE   40,000 0 0