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
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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
5 01 ACQUISITION CORP COM CL A 33836P105 1,862 186,650 SH   SOLE   186,650 0 0
ACADIA PHARMACEUTICALS INC COM 004225108 7,740 300,000 SH Call SOLE   300,000 0 0
ACER THERAPEUTICS INC COM 00444P108 2,907 934,755 SH   SOLE   934,755 0 0
ADICET BIO INC COM 007002108 5,178 395,875 SH   SOLE   395,875 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 13,560 1,712,088 SH   SOLE   1,712,088 0 0
AKEBIA THERAPEUTICS INC COM 00972D105 17,436 5,150,819 SH   SOLE   5,150,819 0 0
AKUMIN INC COM 01021F109 21,366 5,774,470 SH   SOLE   5,774,470 0 0
ALTA EQUIPMENT GROUP INC *W EXP 02/14/202 02128L114 1,633 179,300 SH   SOLE   179,300 0 0
ALTA EQUIPMENT GROUP INC COMMON STOCK 02128L106 26,339 2,026,045 SH   SOLE   2,026,045 0 0
ANGION BIOMEDICA CORP COM A 03476J107 2,259 125,000 SH   SOLE   125,000 0 0
APOLLO ENDOSURGERY INC COM 03767D108 12,563 2,279,970 SH   SOLE   2,279,970 0 0
APTOSE BIOSCIENCES INC COM NEW 03835T200 46,240 7,738,892 SH   SOLE   7,738,892 0 0
ARK ETF TR GENOMIC REV ETF 00214Q302 44,365 500,000 SH Call SOLE   500,000 0 0
ARMSTRONG FLOORING INC COM 04238R106 2,980 609,349 SH   SOLE   609,349 0 0
ARYA SCIENCES ACQU CORP IV CL A G31659108 4,189 400,000 SH   SOLE   400,000 0 0
ARYA SCIENCES ACQUISITION CO COM CL A G3166W106 9,739 706,770 SH   SOLE   706,770 0 0
AVENUE THERAPEUTICS INC COM NEW 05360L205 183 30,211 SH   SOLE   30,211 0 0
AVIS BUDGET GROUP COM 053774105 45,236 623,600 SH   SOLE   623,600 0 0
B RILEY PRINCIPAL 150 MERGER UNIT 99/99/9999 05601V202 3,750 375,000 SH   SOLE   375,000 0 0
B. RILEY FINANCIAL INC COM 05580M108 5,724 101,532 SH   SOLE   101,532 0 0
BANCORP INC DEL COM 05969A105 2,893 139,629 SH   SOLE   139,629 0 0
BCTG ACQUISITION CORP COM 05492W103 1,956 175,915 SH   SOLE   175,915 0 0
BOLT BIOTHERAPEUTICS INC COM 097702104 1,646 50,000 SH   SOLE   50,000 0 0
CARVANA CO CL A 146869102 53,451 203,700 SH Call SOLE   203,700 0 0
CATALYST BIOSCIENCES INC COM NEW 14888D208 12,909 2,561,334 SH   SOLE   2,561,334 0 0
CELCUITY INC COM 15102K100 1,912 133,367 SH   SOLE   133,367 0 0
CERECOR INC COM 15671L109 23,106 7,650,928 SH   SOLE   7,650,928 0 0
CODEXIS INC COM 192005106 95,951 4,191,834 SH   SOLE   4,191,834 0 0
CODEXIS INC COM 192005106 1,229 53,700 SH Call SOLE   53,700 0 0
CUE BIOPHARMA INC COM 22978P106 32,989 2,703,983 SH   SOLE   2,703,983 0 0
CURIS INC COM NEW 231269200 18,822 1,662,711 SH   SOLE   1,662,711 0 0
CYREN LTD SHS M26895108 487 598,540 SH   SOLE   598,540 0 0
DARIOHEALTH CORP COM NEW 23725P209 14,449 750,194 SH   SOLE   750,194 0 0
DHI GROUP INC COM 23331S100 16,115 4,810,513 SH   SOLE   4,810,513 0 0
DOVER MOTORSPORTS INC COM 260174107 5,350 2,597,086 SH   SOLE   2,597,086 0 0
DXP ENTERPRISES INC COM NEW 233377407 38,119 1,263,480 SH   SOLE   1,263,480 0 0
EHEALTH INC COM 28238P109 20,405 280,562 SH   SOLE   280,562 0 0
ESTABLISHMENT LABS HLDGS INC COM G31249108 128,790 2,059,654 SH   SOLE   2,059,654 0 0
EXACT SCIENCES CORP COM 30063P105 26,356 200,000 SH Put SOLE   200,000 0 0
EXAGEN INC COM 30068X103 6,551 374,315 SH   SOLE   374,315 0 0
FALCON MINERALS CORP *W EXP 07/21/202 30607B208 714 878,022 SH   SOLE   878,022 0 0
FALCON MINERALS CORP CL A COM 30607B109 12,072 2,688,653 SH   SOLE   2,688,653 0 0
FINTECH ACQUISITION CORP IV UNIT 12/31/2025 31810N302 13,776 1,200,000 SH   SOLE   1,200,000 0 0
FINTECH ACQUISITION CORP V UNIT 99/99/9999 31810Q305 11,950 1,000,000 SH   SOLE   1,000,000 0 0
FORTRESS BIOTECH INC COM 34960Q109 30,368 8,602,693 SH   SOLE   8,602,693 0 0
FTAC ATHENA ACQUISITION CORP UNIT 99/99/9999 G37283127 10,000 1,000,000 SH   SOLE   1,000,000 0 0
FTAC HERA ACQUISITION CORP UNIT 02/28/2026 G3728Y129 9,990 1,000,000 SH   SOLE   1,000,000 0 0
FTAC OLYMPUS ACQUISITION COR *W EXP 08/28/202 G37288126 2,035 333,327 SH   SOLE   333,327 0 0
FTAC OLYMPUS ACQUISITION COR CL A SHS G37288100 15,949 1,508,889 SH   SOLE   1,508,889 0 0
FTAC PARNASSUS ACQUISITN COR UNIT 03/10/2026 30319B207 9,930 1,000,000 SH   SOLE   1,000,000 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 4,162 1,213,540 SH   SOLE   1,213,540 0 0
GOLDEN ENTMT INC COM 381013101 22,944 908,323 SH   SOLE   908,323 0 0
HARPOON THERAPEUTICS INC COM 41358P106 9,473 452,813 SH   SOLE   452,813 0 0
HCA HEALTHCARE INC COM 40412C101 6,705 35,600 SH   SOLE   35,600 0 0
HEALTHCOR CATALIO ACQU CORP CL A SHS G44125105 2,906 290,596 SH   SOLE   290,596 0 0
HOOKIPA PHARMA INC COM 43906K100 12,105 900,000 SH   SOLE   900,000 0 0
HTG MOLECULAR DIAGNOSTICS IN COM NEW 40434H203 1,989 363,622 SH   SOLE   363,622 0 0
IKENA ONCOLOGY INC COM 45175G108 9,181 325,000 SH   SOLE   325,000 0 0
IMAC HLDGS INC COM 44967K104 4,125 2,500,000 SH   SOLE   2,500,000 0 0
IMAX CORP COM 45245E109 29,196 1,452,523 SH   SOLE   1,452,523 0 0
IMMATICS N.V *W EXP 07/01/202 N44445117 1,614 226,471 SH   SOLE   226,471 0 0
IMMATICS N.V SHS N44445109 27,372 2,441,765 SH   SOLE   2,441,765 0 0
INSU ACQUISITION CORP III UNIT 12/31/2026 457817302 10,100 1,000,000 SH   SOLE   1,000,000 0 0
INTERNATIONAL MNY EXPRESS IN COM 46005L101 22,643 1,508,518 SH   SOLE   1,508,518 0 0
INVESCO QQQ TR UNIT SER 1 46090E103 191,478 600,000 SH Put SOLE   600,000 0 0
ISHARES TR 20 YR TR BD ETF 464287432 81,270 600,000 SH Put SOLE   600,000 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 60,481 273,745 SH   SOLE   273,745 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 88,376 400,000 SH Call SOLE   400,000 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 530,256 2,400,000 SH Put SOLE   2,400,000 0 0
KEROS THERAPEUTICS INC COM 492327101 28,336 460,372 SH   SOLE   460,372 0 0
KINTARA THERAPEUTICS INC COM 49720K101 1,571 902,677 SH   SOLE   902,677 0 0
LAVA THERAPEUTICS NV SHS N51517105 5,791 381,227 SH   SOLE   381,227 0 0
LINCOLN EDL SVCS CORP COM 533535100 9,578 1,494,298 SH   SOLE   1,494,298 0 0
LUXFER HOLDINGS PLC SHS G5698W116 46,823 2,200,347 SH   SOLE   2,200,347 0 0
MEDIACO HLDG INC CL A 58450D104 346 103,680 SH   SOLE   103,680 0 0
MERRIMACK PHARMACEUTICALS IN COM NEW 590328209 3,824 608,974 SH   SOLE   608,974 0 0
META FINL GROUP INC COM 59100U108 44,756 987,784 SH   SOLE   987,784 0 0
METROMILE INC *W EXP 02/09/202 591697115 3,405 524,964 SH   SOLE   524,964 0 0
METROMILE INC COM 591697107 25,030 2,432,490 SH   SOLE   2,432,490 0 0
PAR TECHNOLOGY CORP NOTE 2.875% 4/1 698884AC7 7,506 6,000,000 PRN   SOLE   6,000,000 0 0
PAYA HOLDINGS INC COM CL A 70434P103 15,280 1,394,116 SH   SOLE   1,394,116 0 0
QAD INC CL A 74727D306 63,895 959,666 SH   SOLE   959,666 0 0
READING INTL INC CL A 755408101 11,760 2,118,875 SH   SOLE   2,118,875 0 0
REGIS CORP MINN COM 758932107 5,024 400,000 SH Put SOLE   400,000 0 0
RMR GROUP INC CL A 74967R106 26,490 649,096 SH   SOLE   649,096 0 0
ROTH CH ACQUISITION III CO UNIT 02/26/2026 77867Q201 4,000 400,000 SH   SOLE   400,000 0 0
SCIENTIFIC GAMES CORP COM 80874P109 51,813 1,345,087 SH   SOLE   1,345,087 0 0
SCIENTIFIC GAMES CORP COM 80874P109 79,324 2,059,300 SH Call SOLE   2,059,300 0 0
SCULLY ROYALTY LTD COM SHS G7T96K107 6,487 743,953 SH   SOLE   743,953 0 0
SELECT INTERIOR CONCEPTS INC CL A 816120307 1,127 156,573 SH   SOLE   156,573 0 0
SHIFT TECHNOLOGIES INC CL A 82452T107 41,411 5,006,840 SH   SOLE   5,006,840 0 0
SHIFT TECHNOLOGIES INC CL A 82452T107 3,328 400,000 SH Call SOLE   400,000 0 0
SIGA TECHNOLOGIES INC COM 826917106 681 104,702 SH   SOLE   104,702 0 0
SILVERBACK THERAPEUTICS INC COM 82835W108 42,697 992,242 SH   SOLE   992,242 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 9,849 7,816,729 SH   SOLE   7,816,729 0 0
STRATA SKIN SCIENCES INC COM NEW 86272A206 7,655 4,583,908 SH   SOLE   4,583,908 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 44,774 2,002,410 SH   SOLE   2,002,410 0 0
TAYSHA GENE THERAPIES INC COM SHS 877619106 750 36,956 SH   SOLE   36,956 0 0
TELADOC HEALTH INC COM 87918A105 18,175 100,000 SH Put SOLE   100,000 0 0
TELIGENT INC NEW COM NEW 87960W203 2,584 4,155,045 SH   SOLE   4,155,045 0 0
TENET HEALTHCARE CORP COM NEW 88033G407 853 16,408 SH   SOLE   16,408 0 0
TENET HEALTHCARE CORP COM NEW 88033G407 45,547 875,900 SH Call SOLE   875,900 0 0
TFF PHARMACEUTICALS INC COM 87241J104 5,191 382,553 SH   SOLE   382,553 0 0
THE AARONS COMPANY INC COM 00258W108 899 35,026 SH   SOLE   35,026 0 0
TRAVEL PLUS LEISURE CO COM 894164102 51,168 836,626 SH   SOLE   836,626 0 0
TRAVELCENTERS OF AMERICA INC COM NEW 89421B109 35,025 1,291,003 SH   SOLE   1,291,003 0 0
UNIQURE NV SHS N90064101 56,360 1,672,891 SH   SOLE   1,672,891 0 0
UNIQURE NV SHS N90064101 50,535 1,500,000 SH Call SOLE   1,500,000 0 0
VIEMED HEALTHCARE INC COM 92663R105 19,538 1,930,590 SH   SOLE   1,930,590 0 0
VIRGIN GALACTIC HOLDINGS INC COM 92766K106 12,252 400,000 SH Call SOLE   400,000 0 0
VONAGE HLDGS CORP COM 92886T201 54,817 4,637,611 SH   SOLE   4,637,611 0 0
VONAGE HLDGS CORP COM 92886T201 14,775 1,250,000 SH Call SOLE   1,250,000 0 0
WAVE LIFE SCIENCES LTD SHS Y95308105 16,172 2,882,786 SH   SOLE   2,882,786 0 0
WAYFAIR INC CL A 94419L101 410,434 1,304,000 SH Call SOLE   1,304,000 0 0
ZOGENIX INC COM NEW 98978L204 9,234 473,055 SH   SOLE   473,055 0 0
ZOVIO INC COM 98979V102 12,551 3,091,286 SH   SOLE   3,091,286 0 0