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 EMRG MRKTS EQT INM COM 00301W105 15,453 2,207,509 SH   SOLE   2,207,509 0 0
ABERDEEN JAPAN EQUITY FD INC COM 00306J109 8,797 995,107 SH   SOLE   995,107 0 0
ADAMS DIVERSIFIED EQUITY FD COM 006212104 3,699 239,896 SH   SOLE   239,896 0 0
ALLIANCE CALIF MUN INCOME FD COM 018546101 10,008 761,664 SH   SOLE   761,664 0 0
ALPINE GLOBAL PREMIER PPTYS COM SBI 02083A103 788 123,487 SH   SOLE   123,487 0 0
AMERICAN CAP SR FLOATING LTD COM 02504D108 2,776 225,717 SH   SOLE   225,717 0 0
ASIA PAC FD INC COM COM 044901106 1,301 93,969 SH   SOLE   93,969 0 0
ATLANTIC ACQUISITION CORP COM 048206106 2,827 280,567 SH   SOLE   280,567 0 0
ATLANTIC ACQUISITION CORP RIGHT 02/08/2019 048206304 46 80,343 SH   SOLE   80,343 0 0
AVISTA HEALTHCARE PUB ACQ CO CL A G0726L125 3,236 322,978 SH   SOLE   322,978 0 0
AVISTA HEALTHCARE PUB ACQ CO *W EXP 99/99/999 G0726L117 120 257,678 SH   SOLE   257,678 0 0
BARINGTON HILCO ACQUISITION *W EXP 02/11/202 06759V127 6 48,053 SH   SOLE   48,053 0 0
BIG ROCK PARTNERS ACQUISI CO COM 089482103 2,435 245,667 SH   SOLE   245,667 0 0
BIG ROCK PARTNERS ACQUISTION-RT Rights 089482129 110 244,162 SH   SOLE   244,162 0 0
BIG ROCK PARTNERS ACQUISTION-CW22 Warrants 089482111 45 122,081 SH   SOLE   122,081 0 0
BISON CAP ACQUISITION CORP ORD SHS G1142P104 1,958 195,414 SH   SOLE   195,414 0 0
BISON CAP ACQUISITION CORP RIGHT 03/20/2019 G1142P138 64 195,414 SH   SOLE   195,414 0 0
BISON CAP ACQUISITION CORP *W EXP 06/20/202 G1142P112 35 97,707 SH   SOLE   97,707 0 0
BLACK RIDGE ACQUISITION CORP COM 09216T107 3,689 377,400 SH   SOLE   377,400 0 0
BLACK RIDGE ACQUISITION CORP RIGHT 07/10/2019 09216T123 118 362,500 SH   SOLE   362,500 0 0
BLACK RIDGE ACQUISITION CORP *W EXP 07/10/202 09216T115 117 340,495 SH   SOLE   340,495 0 0
BLACKROCK DEBT STRAT FD INC COM NEW 09255R202 268 23,929 SH   SOLE   23,929 0 0
BLACKROCK INCOME TR INC COM 09247F100 152 26,023 SH   SOLE   26,023 0 0
BLACKROCK NY MUNI INC QLTY T COM 09249U105 4,690 377,881 SH   SOLE   377,881 0 0
BOULDER GROWTH & INCOME FD I COM 101507101 4,385 426,605 SH   SOLE   426,605 0 0
BRANDYWINEGBL GLBAL INM OPRT COM 10537L104 171 15,023 SH   SOLE   15,023 0 0
CENTRAL SECS CORP COM 155123102 10,140 364,456 SH   SOLE   364,456 0 0
CHINA FD INC COM 169373107 20,020 957,877 SH   SOLE   957,877 0 0
CM SEVEN STAR ACQUISITION CO SHS G2345N102 4,938 499,257 SH   SOLE   499,257 0 0
CM SEVEN STAR ACQUISITION CO RIGHT 08/21/2022 G2345N136 160 499,234 SH   SOLE   499,234 0 0
CM SEVEN STAR ACQUISITION CO *W EXP 08/21/202 G2345N110 99 249,616 SH   SOLE   249,616 0 0
CONSTELLATION ALPHA CAP CORP SHS G2379F108 1,074 107,854 SH   SOLE   107,854 0 0
CONSTELLATION ALPHA CAP CORP RIGHT 99/99/9999 G2379F132 36 54,854 SH   SOLE   54,854 0 0
CONSTELLATION ALPHA CAP CORP *W EXP 03/23/202 G2379F116 18 48,854 SH   SOLE   48,854 0 0
DELAWARE ENHANCED GBL DIV & COM 246060107 7,783 686,921 SH   SOLE   686,921 0 0
DEUTSCHE MULTI-MKT INCOME TR SHS 25160E102 7,431 843,529 SH   SOLE   843,529 0 0
DEUTSCHE STRATEGIC INCOME TR SHS 25160F109 2,866 234,146 SH   SOLE   234,146 0 0
DIVIDEND & INCOME FUND COM NEW 25538A204 1,196 97,033 SH   SOLE   97,033 0 0
DRAPER OAKWOOD TECHNOLOGY COM CL A 26146L103 2,467 247,224 SH   SOLE   247,224 0 0
DRAPER OAKWOOD TECHNOLOGY RIGHT 09/19/2018 26146L129 144 243,524 SH   SOLE   243,524 0 0
DRAPER OAKWOOD TECHNOLOGY *W EXP 09/19/202 26146L111 89 121,762 SH   SOLE   121,762 0 0
EQUUS TOTAL RETURN INC COM 294766100 1,173 497,162 SH   SOLE   497,162 0 0
FRANKLIN UNVL TR SH BEN INT 355145103 2,521 377,325 SH   SOLE   377,325 0 0
GABELLI GLB SML & MD CP VAL COM 36249W104 304 25,086 SH   SOLE   25,086 0 0
GDL FUND COM SH BEN IT 361570104 854 93,002 SH   SOLE   93,002 0 0
GENERAL AMERN INVS INC COM 368802104 1,587 46,245 SH   SOLE   46,245 0 0
GIGCAPITAL INC COM 37518N106 2,588 262,988 SH   SOLE   262,988 0 0
GIGCAPITAL INC UNIT 03/06/2025 37518N205 168 16,000 SH   SOLE   16,000 0 0
GIGCAPITAL INC RIGHT 03/06/2020 37518N114 108 240,818 SH   SOLE   240,818 0 0
GIGCAPITAL INC *W EXP 06/08/202 37518N122 81 179,461 SH   SOLE   179,461 0 0
GREAT ELM CAP CORP COM 390320109 2,694 291,572 SH   SOLE   291,572 0 0
GSV CAP CORP COM 36191J101 412 60,104 SH   SOLE   60,104 0 0
HAYMAKER ACQUISITION CORP COM CLASS A 420870107 1,031 105,912 SH   SOLE   105,912 0 0
HAYMAKER ACQUISITION CORP *W EXP 10/27/202 420870115 46 52,956 SH   SOLE   52,956 0 0
HENNESSY CAP ACQUSTON CORP I COM 42588L105 172 16,949 SH   SOLE   16,949 0 0
HERZFELD CARIBBEAN BASIN FD COM 42804T106 455 69,005 SH   SOLE   69,005 0 0
HILL INTERNATIONAL INC COM 431466101 21,305 3,611,055 SH   SOLE   3,611,055 0 0
HL ACQUISITIONS CORP UNIT 06/21/2023 G4603R114 1,006 100,000 SH   SOLE   100,000 0 0
HUNTER MARITIME ACQUISITION CL A Y37828111 112 11,418 SH   SOLE   11,418 0 0
HUNTER MARITIME ACQUISITION *W EXP 11/17/202 Y37828129 36 98,016 SH   SOLE   98,016 0 0
I AM CAP ACQUISITION CO COM 45074Q108 2,633 243,528 SH   SOLE   243,528 0 0
I AM CAP ACQUISITION CO RIGHT 05/22/2019 45074Q124 88 243,528 SH   SOLE   243,528 0 0
I AM CAP ACQUISITION CO *W EXP 05/22/202 45074Q116 90 243,528 SH   SOLE   243,528 0 0
INDUSTREA ACQUISITION CORP CL A 45579J104 5,866 594,967 SH   SOLE   594,967 0 0
INDUSTREA ACQUISITION CORP UNIT 07/21/2024 45579J203 103 10,000 SH   SOLE   10,000 0 0
INDUSTREA ACQUISITION CORP *W EXP 08/01/202 45579J112 344 597,967 SH   SOLE   597,967 0 0
INVESCO HIGH INCOME TR II COM 46131F101 505 37,425 SH   SOLE   37,425 0 0
JAPAN SMALLER CAPTLZTN FD IN COM 47109U104 7,989 685,169 SH   SOLE   685,169 0 0
KAYNE ANDERSON ACQUISITION COM CL A 48661U102 213 21,600 SH   SOLE   21,600 0 0
KBL MERGER CORP IV COM 48242A104 5,038 506,071 SH   SOLE   506,071 0 0
KBL MERGER CORP IV RIGHT 03/22/2019 48242A120 168 490,403 SH   SOLE   490,403 0 0
KBL MERGER CORP IV UNIT 01/15/2024 48242A203 116 11,082 SH   SOLE   11,082 0 0
KBL MERGER CORP IV *W EXP 01/15/202 48242A112 145 501,153 SH   SOLE   501,153 0 0
KEARNY FINL CORP MD COM 48716P108 135 10,000 SH   SOLE   10,000 0 0
LAZARD WORLD DIVID & INCOME COM 521076109 2,396 231,232 SH   SOLE   231,232 0 0
LEGACY ACQUISITION CORP UNIT 05/31/2024 524643202 114 11,400 SH   SOLE   11,400 0 0
LEISURE ACQUISITION CORP UNIT 99/99/9999 52539T206 1,563 156,000 SH   SOLE   156,000 0 0
LF CAP ACQUISITION CORP UNIT 06/19/2025 50200K207 3,326 330,250 SH   SOLE   330,250 0 0
MANAGED DURATION INVT GRD FU COM 56165R103 2,833 197,620 SH   SOLE   197,620 0 0
MATLIN & PARTNERS ACQUISITIO CL A 57682V106 247 25,000 SH   SOLE   25,000 0 0
M I ACQUISITIONS INC *W EXP 11/15/202 55304A112 267 176,834 SH   SOLE   176,834 0 0
MODERN MEDIA ACQUISITION COM 60765P103 3,072 307,836 SH   SOLE   307,836 0 0
MODERN MEDIA ACQUISITION RIGHT 99/99/9999 60765P129 150 288,782 SH   SOLE   288,782 0 0
MODERN MEDIA ACQUISITION *W EXP 05/17/202 60765P111 93 143,078 SH   SOLE   143,078 0 0
MORGAN STANLEY ASIA PAC FD I COM 61744U106 6,265 366,820 SH   SOLE   366,820 0 0
MTECH ACQUISITION CORP COM CLASS A 55378W107 2,225 227,949 SH   SOLE   227,949 0 0
MTECH ACQUISITION CORP UNIT 01/19/2023 55378W206 165 16,000 SH   SOLE   16,000 0 0
MTECH ACQUISITION CORP *W EXP 08/01/202 55378W115 148 227,949 SH   SOLE   227,949 0 0
MUDRICK CAP ACQUISITION CORP UNIT 02/01/2023 624745204 1,489 145,706 SH   SOLE   145,706 0 0
MVC CAPITAL INC COM 553829102 7,627 802,106 SH   SOLE   802,106 0 0
NEW IRELAND FUND INC COM 645673104 1,902 162,831 SH   SOLE   162,831 0 0
NEW YORK REIT INC COM 64976L109 14,323 785,251 SH   SOLE   785,251 0 0
NEXPOINT STRATEGIC OPORTUNT COM NEW 65340G205 1,374 62,595 SH   SOLE   62,595 0 0
NUVEEN CONNECTICUT QLTY MUN COM 67060D107 4,174 348,717 SH   SOLE   348,717 0 0
OPES ACQUISITION CORP UNIT 03/07/2023 68373P209 1,489 148,174 SH   SOLE   148,174 0 0
OSPREY ENERGY ACQUISITION CO *W EXP 07/21/202 688397116 6 10,610 SH   SOLE   10,610 0 0
PENSARE ACQUISITION CORP COM 70957E105 2,057 207,741 SH   SOLE   207,741 0 0
PENSARE ACQUISITION CORP RIGHT 99/99/9999 70957E121 29 103,469 SH   SOLE   103,469 0 0
PENSARE ACQUISITION CORP *W EXP 07/27/202 70957E113 26 41,202 SH   SOLE   41,202 0 0
PURE ACQUISITION CORP CL A 74621Q106 12,673 1,314,678 SH   SOLE   1,314,678 0 0
PURE ACQUISITION CORP *W EXP 04/17/202 74621Q114 824 643,714 SH   SOLE   643,714 0 0
PUTMAN HIGH INCOME SEC FUND SHS BEN INT 746779107 18,407 1,972,844 SH   SOLE   1,972,844 0 0
REGALWOOD GLOBAL ENERGY LTD COM CL A G74760102 182 18,696 SH   SOLE   18,696 0 0
ROYCE VALUE TR INC COM 780910105 659 41,706 SH   SOLE   41,706 0 0
SENTINEL ENERGY SVCS INC UNIT 11/02/2022 G8062D128 125 12,413 SH   SOLE   12,413 0 0
SOURCE CAP INC COM 836144105 7,251 182,409 SH   SOLE   182,409 0 0
STELLAR ACQUISITION III INC COM Y8172W107 6,180 595,414 SH   SOLE   595,414 0 0
STELLAR ACQUISITION III INC *W EXP 03/22/202 Y8172W115 135 519,630 SH   SOLE   519,630 0 0
STEWART INFORMATION SVCS COR COM 860372101 13,859 321,774 SH   SOLE   321,774 0 0
SWISS HELVETIA FD INC COM 870875101 26,081 2,111,785 SH   SOLE   2,111,785 0 0
TAIWAN FD INC COM 874036106 8,361 415,328 SH   SOLE   415,328 0 0
THUNDER BRIDGE ACQUISITION L UNIT 01/01/2025 G8857R118 3,058 304,750 SH   SOLE   304,750 0 0
TIBERIUS ACQUISITION CORP UNIT 02/28/2021 88633A206 3,265 324,234 SH   SOLE   324,234 0 0
TRIANGLE CAP CORP COM 895848109 9,261 805,281 SH   SOLE   805,281 0 0
TRI CONTL CORP COM 895436103 6,419 242,143 SH   SOLE   242,143 0 0
TRIDENT ACQUISITIONS CORP UNIT 05/09/2023 89615T205 4,225 419,250 SH   SOLE   419,250 0 0
TRINITY MERGER CORP COM CL A 89653L106 2,540 260,000 SH   SOLE   260,000 0 0
TRINITY MERGER CORP *W EXP 05/11/202 89653L114 104 260,000 SH   SOLE   260,000 0 0
TRINITY PL HLDGS INC COM 89656D101 1,574 240,340 SH   SOLE   240,340 0 0
TWELVE SEAS INVESTMENT COMPA UNIT 06/21/2023 G9145A123 4,537 451,000 SH   SOLE   451,000 0 0
UNION ACQUISITION CORP UNIT 99/99/9999 G9366W119 5,979 583,434 SH   SOLE   583,434 0 0
VECTOIQ ACQUISITION CORP UNIT 05/11/2023 92243N202 1,077 107,000 SH   SOLE   107,000 0 0