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
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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 1,792 181,927 SH   SOLE   181,927 0 0
ACADIA PHARMACEUTICALS INC COM 004225108 7,002 300,000 SH Call SOLE   300,000 0 0
ACER THERAPEUTICS INC COM 00444P108 2,055 901,290 SH   SOLE   901,290 0 0
AEGLEA BIOTHERAPEUTICS INC COM 00773J103 13,364 2,813,560 SH   SOLE   2,813,560 0 0
AKEBIA THERAPEUTICS INC COM 00972D105 11,116 4,918,565 SH   SOLE   4,918,565 0 0
AKEBIA THERAPEUTICS INC COM 00972D105 2,260 1,000,000 SH Call SOLE   1,000,000 0 0
AKUMIN INC COM 01021F109 11,061 6,320,740 SH   SOLE   6,320,740 0 0
ALTA EQUIPMENT GROUP INC COMMON STOCK 02128L106 28,497 1,946,541 SH   SOLE   1,946,541 0 0
ANGION BIOMEDICA CORP COM 03476J107 3,674 1,267,029 SH   SOLE   1,267,029 0 0
APOLLO ENDOSURGERY INC COM 03767D108 31,712 3,761,783 SH   SOLE   3,761,783 0 0
APTOSE BIOSCIENCES INC COM NEW 03835T200 10,266 7,604,693 SH   SOLE   7,604,693 0 0
ARYA SCIENCES ACQU CORP IV CL A G31659108 3,959 399,248 SH   SOLE   399,248 0 0
ARYA SCIENCES ACQUISITN CORP CLASS A ORD SHS G31658100 9,698 999,811 SH   SOLE   999,811 0 0
AURA BIOSCIENCES INC COM 05153U107 1,683 99,146 SH   SOLE   99,146 0 0
AUTOLUS THERAPEUTICS PLC SPON ADS 05280R100 21,162 4,077,509 SH   SOLE   4,077,509 0 0
AVALO THERAPEUTICS INC COM 05338F108 12,148 7,145,874 SH   SOLE   7,145,874 0 0
AVENUE THERAPEUTICS INC COM NEW 05360L205 1,319 1,453,166 SH   SOLE   1,453,166 0 0
B RILEY PRINCIPAL 150 MERGER *W EXP 03/01/202 05601V111 181 124,997 SH   SOLE   124,997 0 0
B RILEY PRINCIPAL 150 MERGER COM CL A 05601V103 3,538 349,649 SH   SOLE   349,649 0 0
B RILEY PRINCIPAL 150 MERGER UNIT 99/99/9999 05601V202 0 9 SH   SOLE   9 0 0
B. RILEY FINANCIAL INC COM 05580M108 8,297 93,377 SH   SOLE   93,377 0 0
BAKKT HOLDINGS INC COM CL A 05759B107 447 52,499 SH   SOLE   52,499 0 0
BBQ HLDGS INC COM 05551A109 15,840 1,000,000 SH   SOLE   1,000,000 0 0
BIG 5 SPORTING GOODS CORP COM 08915P101 3,802 200,000 SH Put SOLE   200,000 0 0
CABALETTA BIO INC COM 12674W109 1,294 341,538 SH   SOLE   341,538 0 0
CARVANA CO CL A 146869102 47,216 203,700 SH Call SOLE   203,700 0 0
CATALYST BIOSCIENCES INC COM NEW 14888D208 2,524 2,761,660 SH   SOLE   2,761,660 0 0
CIDARA THERAPEUTICS INC COM 171757107 6,693 5,270,458 SH   SOLE   5,270,458 0 0
CODEXIS INC COM 192005106 100,505 3,214,097 SH   SOLE   3,214,097 0 0
COGNITION THERAPEUTICS INC COM 19243B102 1,325 209,588 SH   SOLE   209,588 0 0
CUE BIOPHARMA INC COM 22978P106 28,724 2,539,700 SH   SOLE   2,539,700 0 0
CURIS INC COM NEW 231269200 11,384 2,391,691 SH   SOLE   2,391,691 0 0
CYMABAY THERAPEUTICS INC COM 23257D103 6,760 2,000,142 SH   SOLE   2,000,142 0 0
DARIOHEALTH CORP COM NEW 23725P209 18,310 1,411,681 SH   SOLE   1,411,681 0 0
DHI GROUP INC COM 23331S100 23,251 3,726,184 SH   SOLE   3,726,184 0 0
DXP ENTERPRISES INC COM NEW 233377407 31,401 1,223,258 SH   SOLE   1,223,258 0 0
ELOXX PHARMACEUTICALS INC COM 29014R103 632 894,659 SH   SOLE   894,659 0 0
ESTABLISHMENT LABS HLDGS INC COM G31249108 143,510 2,123,236 SH   SOLE   2,123,236 0 0
EXAGEN INC COM 30068X103 2,174 186,936 SH   SOLE   186,936 0 0
FALCON MINERALS CORP *W EXP 07/21/202 30607B208 122 878,022 SH   SOLE   878,022 0 0
FALCON MINERALS CORP CL A COM 30607B109 11,565 2,374,707 SH   SOLE   2,374,707 0 0
FARADAY FUTRE INTLGT ELCTR I COM 307359109 1,862 350,000 SH   SOLE   350,000 0 0
FINTECH ACQUISITION CORP V *W EXP 12/31/202 31810Q115 490 333,331 SH   SOLE   333,331 0 0
FINTECH ACQUISITION CORP V COM CL A 31810Q107 9,835 991,432 SH   SOLE   991,432 0 0
FINTECH ACQUISITION CORP VI UNIT 06/24/2026 31811H205 10,005 1,000,000 SH   SOLE   1,000,000 0 0
FORTRESS BIOTECH INC COM 34960Q109 22,715 9,086,005 SH   SOLE   9,086,005 0 0
FTAC HERA ACQUISITION CORP *W EXP 02/28/202 G3728Y111 237 249,997 SH   SOLE   249,997 0 0
FTAC HERA ACQUISITION CORP CLASS A ORD SHS G3728Y103 9,098 931,191 SH   SOLE   931,191 0 0
FTAC HERA ACQUISITION CORP UNIT 02/28/2026 G3728Y129 0 9 SH   SOLE   9 0 0
GALMED PHARMACEUTICALS LTD SHS M47238106 542 297,947 SH   SOLE   297,947 0 0
GOLDEN ENTMT INC COM 381013101 54,134 1,071,315 SH   SOLE   1,071,315 0 0
GUARDFORCE AI CO LTD *W EXP 09/01/202 G4236L120 333 600,000 SH   SOLE   600,000 0 0
HARPOON THERAPEUTICS INC COM 41358P106 3,590 475,467 SH   SOLE   475,467 0 0
HCA HEALTHCARE INC COM 40412C101 9,146 35,600 SH   SOLE   35,600 0 0
HELIOGEN INC COMMON STOCK 42329E105 12,021 775,001 SH   SOLE   775,001 0 0
HERBALIFE NUTRITION LTD COM SHS G4412G101 11,379 278,000 SH Call SOLE   278,000 0 0
HOOKIPA PHARMA INC COM 43906K100 1,103 473,566 SH   SOLE   473,566 0 0
HTG MOLECULAR DIAGNOSTICS IN COM NEW 40434H203 1,816 335,015 SH   SOLE   335,015 0 0
HYPERFINE INC COM CL A 44916K106 5,210 718,637 SH   SOLE   718,637 0 0
IDW MEDIA HLDGS INC CL B 44951N106 2,458 1,229,243 SH   SOLE   1,229,243 0 0
IMAC HLDGS INC COM 44967K104 2,727 2,392,094 SH   SOLE   2,392,094 0 0
IMAX CORP COM 45245E109 49,907 2,797,490 SH   SOLE   2,797,490 0 0
IMAX CORP COM 45245E109 42,816 2,400,000 SH Call SOLE   2,400,000 0 0
IMMATICS N.V *W EXP 07/01/202 N44445117 4,704 1,071,466 SH   SOLE   1,071,466 0 0
IMMATICS N.V SHS N44445109 39,227 2,918,662 SH   SOLE   2,918,662 0 0
IMV INC COM 44974L103 2,507 2,055,212 SH   SOLE   2,055,212 0 0
IN8BIO INC COM 45674E109 1,638 373,169 SH   SOLE   373,169 0 0
INSU ACQUISITION CORP III *W EXP 12/31/202 457817112 185 333,332 SH   SOLE   333,332 0 0
INSU ACQUISITION CORP III COM CL A 457817104 9,800 999,996 SH   SOLE   999,996 0 0
INSU ACQUISITION CORP III UNIT 12/31/2026 457817302 0 4 SH   SOLE   4 0 0
INTERNATIONAL MNY EXPRESS IN COM 46005L101 25,719 1,611,488 SH   SOLE   1,611,488 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 9,483 42,630 SH   SOLE   42,630 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 478,268 2,150,000 SH Put SOLE   2,150,000 0 0
KEROS THERAPEUTICS INC COM 492327101 46,615 796,698 SH   SOLE   796,698 0 0
KEROS THERAPEUTICS INC COM 492327101 2,323 39,700 SH Call SOLE   39,700 0 0
KINTARA THERAPEUTICS INC COM 49720K101 338 663,279 SH   SOLE   663,279 0 0
KURA ONCOLOGY INC COM 50127T109 3,500 250,000 SH Call SOLE   250,000 0 0
LAVA THERAPEUTICS NV SHS N51517105 1,984 360,808 SH   SOLE   360,808 0 0
LINCOLN EDL SVCS CORP COM 533535100 7,493 1,003,024 SH   SOLE   1,003,024 0 0
LUCID DIAGNOSTICS INC COM 54948X109 2,336 435,055 SH   SOLE   435,055 0 0
LUXFER HOLDINGS PLC SHS G5698W116 40,903 2,118,233 SH   SOLE   2,118,233 0 0
MEDIAALPHA INC CL A 58450V104 5,719 370,404 SH   SOLE   370,404 0 0
MERRIMACK PHARMACEUTICALS IN COM NEW 590328209 2,229 569,971 SH   SOLE   569,971 0 0
META FINL GROUP INC COM 59100U108 53,443 895,792 SH   SOLE   895,792 0 0
METROMILE INC *W EXP 02/09/202 591697115 78 558,296 SH   SOLE   558,296 0 0
METROMILE INC COM 591697107 2,452 1,119,612 SH   SOLE   1,119,612 0 0
MILLERKNOLL INC COM 600544100 57,394 1,464,507 SH   SOLE   1,464,507 0 0
NAUTILUS BIOTECHNOLOGY INC COM 63909J108 5,335 1,029,872 SH   SOLE   1,029,872 0 0
NEUROPACE INC COM 641288105 3,084 305,906 SH   SOLE   305,906 0 0
OCUGEN INC COM 67577C105 289 63,606 SH   SOLE   63,606 0 0
PAR TECHNOLOGY CORP NOTE 2.875% 4/1 698884AC7 8,820 6,000,000 PRN   SOLE   6,000,000 0 0
PARTY CITY HOLDCO INC COM 702149105 5,570 1,000,000 SH Call SOLE   1,000,000 0 0
PAYA HOLDINGS INC COM CL A 70434P103 24,092 3,799,961 SH   SOLE   3,799,961 0 0
PAYONEER GLOBAL INC COM 70451X104 2,930 398,684 SH   SOLE   398,684 0 0
PELOTON INTERACTIVE INC CL A COM 70614W100 3,660 102,342 SH   SOLE   102,342 0 0
PELOTON INTERACTIVE INC CL A COM 70614W100 32,184 900,000 SH Call SOLE   900,000 0 0
PERELLA WEINBERG PARTNERS *W EXP 12/31/202 71367G110 1,412 400,000 SH   SOLE   400,000 0 0
PERELLA WEINBERG PARTNERS CLASS A COM 71367G102 3,577 278,140 SH   SOLE   278,140 0 0
READING INTL INC CL A 755408101 14,042 3,475,832 SH   SOLE   3,475,832 0 0
RED VIOLET INC COM 75704L104 40,621 1,023,459 SH   SOLE   1,023,459 0 0
RMR GROUP INC CL A 74967R106 33,422 963,726 SH   SOLE   963,726 0 0
ROTH CH ACQUISITION III CO *W EXP 02/26/202 77867Q110 109 99,749 SH   SOLE   99,749 0 0
SANTANDER CONSUMER USA HLDGS COM 80283M101 16,605 395,176 SH   SOLE   395,176 0 0
SCIENTIFIC GAMES CORP COM 80874P109 6,251 93,533 SH   SOLE   93,533 0 0
SCIENTIFIC GAMES CORP COM 80874P109 104,208 1,559,300 SH Call SOLE   1,559,300 0 0
SCULLY ROYALTY LTD COM SHS G7T96K107 7,151 807,089 SH   SOLE   807,089 0 0
SEMLER SCIENTIFIC INC COM 81684M104 25,578 279,085 SH   SOLE   279,085 0 0
SHIFT TECHNOLOGIES INC CL A 82452T107 14,039 4,116,943 SH   SOLE   4,116,943 0 0
SHOCKWAVE MED INC COM 82489T104 14,266 80,000 SH Put SOLE   80,000 0 0
SILVERBACK THERAPEUTICS INC COM 82835W108 6,703 1,006,462 SH   SOLE   1,006,462 0 0
SOLENO THERAPEUTICS INC COM NEW 834203200 4,004 9,765,129 SH   SOLE   9,765,129 0 0
SPDR SER TR S&P BIOTECH 78464A870 72,774 650,000 SH Put SOLE   650,000 0 0
SPDR SER TR S&P BIOTECH 78464A870 44,784 400,000 SH Call SOLE   400,000 0 0
STRATA SKIN SCIENCES INC COM NEW 86272A206 6,704 4,575,812 SH   SOLE   4,575,812 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 62,399 2,850,559 SH   SOLE   2,850,559 0 0
SYNDAX PHARMACEUTICALS INC COM 87164F105 4,378 200,000 SH Call SOLE   200,000 0 0
TANGO THERAPEUTICS INC COM 87583X109 1,094 100,000 SH   SOLE   100,000 0 0
TAYSHA GENE THERAPIES INC COM SHS 877619106 16,964 1,456,147 SH   SOLE   1,456,147 0 0
TELADOC HEALTH INC COM 87918A105 9,182 100,000 SH Put SOLE   100,000 0 0
TENET HEALTHCARE CORP COM NEW 88033G407 71,552 875,900 SH Call SOLE   875,900 0 0
TRANSACT TECHNOLOGIES INC COM 892918103 835 76,583 SH   SOLE   76,583 0 0
TRAVEL PLUS LEISURE CO COM 894164102 52,023 941,252 SH   SOLE   941,252 0 0
TRAVEL PLUS LEISURE CO COM 894164102 55,270 1,000,000 SH Call SOLE   1,000,000 0 0
TRAVELCENTERS OF AMERICA INC COM NEW 89421B109 65,690 1,272,570 SH   SOLE   1,272,570 0 0
UNICYCIVE THERAPEUTICS INC COM 90466Y103 1,415 686,756 SH   SOLE   686,756 0 0
UNIQURE NV SHS N90064101 49,015 2,363,313 SH   SOLE   2,363,313 0 0
UNIQURE NV SHS N90064101 43,676 2,105,900 SH Call SOLE   2,105,900 0 0
VIEMED HEALTHCARE INC COM 92663R105 7,431 1,423,538 SH   SOLE   1,423,538 0 0
VIRGIN GALACTIC HOLDINGS INC COM 92766K106 5,352 400,000 SH Call SOLE   400,000 0 0
VROOM INC COM 92918V109 16,185 1,500,000 SH Call SOLE   1,500,000 0 0
WAVE LIFE SCIENCES LTD SHS Y95308105 2,848 907,094 SH   SOLE   907,094 0 0
WAYFAIR INC CL A 94419L101 153,439 807,700 SH Call SOLE   807,700 0 0
ZOGENIX INC COM NEW 98978L204 7,829 481,782 SH   SOLE   481,782 0 0
ZOGENIX INC COM NEW 98978L204 3,842 236,400 SH Call SOLE   236,400 0 0
ZOGENIX INC NOTE 2.750%10/0 98978LAB1 13,864 14,000,000 PRN   SOLE   14,000,000 0 0
ZOVIO INC COM 98979V102 3,786 2,980,767 SH   SOLE   2,980,767 0 0