683 Capital Management 13F-HR Quarterly holdings report by institutional manager

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
ADIENT PLC	ORD SHS	G0084W101	19,763	1,203,588	SH		DFND		1,203,588	0	0
ADMA BIOLOGICS INC	COM	000899104	5,860	2,000,000	SH		DFND		2,000,000	0	0
AFFIMED N V	COM	N01045108	16,844	3,650,000	SH		DFND		3,650,000	0	0
ALDEYRA THERAPEUTICS INC	COM	01438T106	688	165,000	SH		DFND		165,000	0	0
ALNYLAM PHARMACEUTICALS INC	COM	02043Q107	15,552	105,000	SH		DFND		105,000	0	0
ALTRIA GROUP INC	COM	02209S103	17,815	453,860	SH		DFND		453,860	0	0
AMAZON COM INC	COM	023135106	33,105	12,000	SH		DFND		12,000	0	0
AMCI ACQUISITION CORP	*W EXP 05/20/202	00165R119	109	200,000	SH		DFND		200,000	0	0
ANGI HOMESERVICES INC	COM CL A	00183L102	12,754	1,049,673	SH		DFND		1,049,673	0	0
APPLIED GENETIC TECHNOLOGIES	COM	03820J100	2,687	485,000	SH		DFND		485,000	0	0
APTOSE BIOSCIENCES INC	COM NEW	03835T200	2,000	316,887	SH		DFND		316,887	0	0
ARCTURUS THERAPEUTICS HLDG I	COM	03969T109	788	16,855	SH		DFND		16,855	0	0
ARDELYX INC	COM	039697107	14,907	2,154,184	SH		DFND		2,154,184	0	0
ARYA SCIENCES ACQUISITION CO	*W EXP 10/10/202	G3165V125	2,700	500,000	SH		DFND		500,000	0	0
ARYA SCIENCES ACQUISITION CO	SHS CL A	G3165V109	16,527	1,050,000	SH		DFND		1,050,000	0	0
ARYA SCIENCES ACQUISTION CO	UNIT 06/09/2027	G31655114	8,117	700,000	SH		DFND		700,000	0	0
AT HOME GROUP INC	COM	04650Y100	6,235	960,793	SH		DFND		960,793	0	0
ATARA BIOTHERAPEUTICS INC	COM	046513107	3,218	220,848	SH		DFND		220,848	0	0
AVEO PHARMACEUTICALS INC	COM NEW	053588307	1,730	335,880	SH		DFND		335,880	0	0
AVIS BUDGET GROUP	COM	053774105	11,674	510,000	SH	Put	DFND		510,000	0	0
BARRICK GOLD CORPORATION	COM	067901108	15,126	561,477	SH		DFND		561,477	0	0
BERKSHIRE HATHAWAY INC DEL	CL B NEW	084670702	8,926	50,000	SH	Put	DFND		50,000	0	0
BIG ROCK PARTNERS ACQUISI CO	*W EXP 12/01/202	089482111	37	82,500	SH		DFND		82,500	0	0
BIG ROCK PARTNERS ACQUISI CO	RIGHT 12/01/2022	089482129	46	165,000	SH		DFND		165,000	0	0
BIOCERES CROP SOLUTIONS CORP	*W EXP 03/14/202	G1117K106	42	200,000	SH		DFND		200,000	0	0
BIOMX INC	*W EXP 10/16/202	09090D111	40	83,084	SH		DFND		83,084	0	0
BONANZA CREEK ENERGY INC	COM NEW	097793400	185	12,500	SH		DFND		12,500	0	0
BROOGE ENERGY LTD	*W EXP 12/20/202	G1611B115	158	321,684	SH		DFND		321,684	0	0
CAPITAL ONE FINL CORP	COM	14040H105	30,770	491,617	SH		DFND		491,617	0	0
CARDLYTICS INC	COM	14161W105	59,946	856,606	SH		DFND		856,606	0	0
CARGURUS INC	COM CL A	141788109	5,172	204,000	SH		DFND		204,000	0	0
CARVANA CO	CL A	146869102	165,085	1,373,423	SH		DFND		1,373,423	0	0
CELLECTIS S A	SPONS ADS	15117K103	3,560	200,000	SH		DFND		200,000	0	0
CHIMERIX INC	COM	16934W106	1,023	330,061	SH		DFND		330,061	0	0
CIMPRESS PLC	SHS EURO	G2143T103	6,675	87,436	SH		DFND		87,436	0	0
COCA COLA CO	COM	191216100	8,936	200,000	SH	Put	DFND		200,000	0	0
CONTRAFECT CORP	COM NEW	212326300	3,834	600,000	SH		DFND		600,000	0	0
CRESUD S A C I F Y A	SPONSORED ADR	226406106	2,849	962,302	SH		DFND		962,302	0	0
CUE BIOPHARMA INC	COM	22978P106	7,843	320,000	SH		DFND		320,000	0	0
DHT HOLDINGS INC	SHS NEW	Y2065G121	6,341	1,236,000	SH		DFND		1,236,000	0	0
DIAGEO P L C	SPON ADR NEW	25243Q205	25,534	190,000	SH		DFND		190,000	0	0
DIAMOND S SHIPPING INC	COM	Y20676105	3,156	395,000	SH		DFND		395,000	0	0
DIANA SHIPPING INC	COM	Y2066G104	140	93,229	SH		DFND		93,229	0	0
DIRTT ENVIRONMENTAL SOLUTION	COM	25490H106	7,875	6,518,000	SH		DFND		6,518,000	0	0
DUPONT DE NEMOURS INC	COM	26614N102	2,657	50,000	SH		DFND		50,000	0	0
EIGER BIOPHARMACEUTICALS INC	COM	28249U105	20,706	2,156,839	SH		DFND		2,156,839	0	0
ENERGY RECOVERY INC	COM	29270J100	3,950	520,000	SH		DFND		520,000	0	0
ENOVA INTL INC	COM	29357K103	17,072	1,148,058	SH		DFND		1,148,058	0	0
EURONAV NV ANTWERPEN	SHS	B38564108	1,321	162,000	SH		DFND		162,000	0	0
FALCON MINERALS CORP	*W EXP 07/21/202	30607B208	15	143,626	SH		DFND		143,626	0	0
FATE THERAPEUTICS INC	COM	31189P102	7,720	225,000	SH		DFND		225,000	0	0
FENNEC PHARMACEUTICALS INC	COM	31447P100	9,269	1,110,000	SH		DFND		1,110,000	0	0
FORTRESS BIOTECH INC	COM	34960Q109	536	200,000	SH		DFND		200,000	0	0
FORUM MERGER II CORP	*W EXP 09/30/202	34986F111	1,410	300,000	SH		DFND		300,000	0	0
FRONTLINE LTD	SHS NEW	G3682E192	495	70,979	SH		DFND		70,979	0	0
GENCO SHIPPING & TRADING LTD	SHS	Y2685T131	1,134	180,496	SH		DFND		180,496	0	0
GENERAL MTRS CO	COM	37045V100	18,975	750,000	SH	Call	DFND		750,000	0	0
GLOBALSTAR INC	COM	378973408	4,536	13,888,836	SH		DFND		13,888,836	0	0
GLOBALSTAR INC	NOTE 5.750% 4/0	378973AD3	356	519,498	PRN		DFND		519,498	0	0
GLRY STR NW MDIA GRUP HLDG L	*W EXP 02/13/202	G39973113	9	225,000	SH		DFND		225,000	0	0
GOLAR LNG PARTNERS LP	COM UNIT LPI	Y2745C102	2,487	963,969	SH		DFND		963,969	0	0
GORDON POINTE ACQUISITION CO	*W EXP 07/30/202	382788115	490	225,000	SH		DFND		225,000	0	0
GRAF INDL CORP	*W EXP 12/31/202	384278115	513	225,000	SH		DFND		225,000	0	0
GREIF INC	CL B	397624206	498	11,910	SH		DFND		11,910	0	0
GRUBHUB INC	COM	400110102	8,142	115,821	SH		DFND		115,821	0	0
GSX TECHEDU INC	SPONSORED ADS	36257Y109	17,998	300,000	SH	Put	DFND		300,000	0	0
HERTZ GLOBAL HLDGS INC	COM	42806J106	2,293	1,625,600	SH	Call	DFND		1,625,600	0	0
HERTZ GLOBAL HLDGS INC	COM	42806J106	1,455	1,032,000	SH	Put	DFND		1,032,000	0	0
HL ACQUISITIONS CORP	*W EXP 06/21/202	G4603R122	407	180,000	SH		DFND		180,000	0	0
HL ACQUISITIONS CORP	RIGHT 07/17/2023	G4603R130	170	180,000	SH		DFND		180,000	0	0
HOSTESS BRANDS INC	*W EXP 11/04/202	44109J114	2,167	2,520,000	SH		DFND		2,520,000	0	0
HYCROFT MINING HOLDING CORP	COM CL A	44862P109	1,404	148,602	SH		DFND		148,602	0	0
HYCROFT MINING HOLDING CORP	*W EXP 02/12/202	44862P117	3,082	2,465,700	SH		DFND		2,465,700	0	0
IAC INTERACTIVECORP	COM	44919P508	165,920	513,050	SH		DFND		513,050	0	0
IAMGOLD CORP	COM	450913108	1,185	300,000	SH		DFND		300,000	0	0
IMMUNOMEDICS INC	COM	452907108	1,771	50,000	SH		DFND		50,000	0	0
INSPIRED ENTMT INC	COM	45782N108	2,367	816,325	SH		DFND		816,325	0	0
INTL GNRL INSURANCE HLDNGS L	*W EXP 03/17/202	G4809J114	153	450,000	SH		DFND		450,000	0	0
IOVANCE BIOTHERAPEUTICS INC	COM	462260100	2,745	100,000	SH		DFND		100,000	0	0
IRSA INVERSIONES Y REP S A	GLOBL DEP RCPT	450047204	2,746	906,224	SH		DFND		906,224	0	0
IRSA PROPIEDADES COMERCIALES	SPONSORED ADR	463588103	1,235	194,165	SH		DFND		194,165	0	0
ISHARES TR	JPMORGAN USD EMG	464288281	43,688	400,000	SH	Put	DFND		400,000	0	0
ISHARES TR	U.S. REAL ES ETF	464287739	126	1,600	SH		DFND		1,600	0	0
ISHARES TR	U.S. REAL ES ETF	464287739	394	5,000	SH	Call	DFND		5,000	0	0
JPMORGAN CHASE & CO	COM	46625H100	3,292	35,000	SH		DFND		35,000	0	0
KADMON HLDGS INC	COM	48283N106	870	170,000	SH		DFND		170,000	0	0
KALEYRA INC	*W EXP 12/12/202	483379111	70	108,050	SH		DFND		108,050	0	0
KROGER CO	COM	501044101	3,385	100,000	SH	Call	DFND		100,000	0	0
LARIMAR THERAPEUTICS INC	COM	517125100	2,829	220,136	SH		DFND		220,136	0	0
LEAP THERAPEUTICS INC	COM	52187K101	1,100	526,466	SH		DFND		526,466	0	0
LEGACY ACQUISITION CORP	*W EXP 11/30/202	524643111	245	500,000	SH		DFND		500,000	0	0
LEISURE ACQUISITION CORP	*W EXP 12/05/201	52539T115	116	125,000	SH		DFND		125,000	0	0
LF CAP ACQUISITION CORP	*W EXP 06/22/202	50200K116	405	450,000	SH		DFND		450,000	0	0
MAIDEN HOLDINGS LTD	SHS	G5753U112	9,767	7,876,964	SH		DFND		7,876,964	0	0
MARINUS PHARMACEUTICALS INC	COM	56854Q101	2,350	925,382	SH		DFND		925,382	0	0
MATCH GROUP INC	COM	57665R106	980	951,000	SH	Put	DFND		951,000	0	0
MEGALITH FINL ACQUISITION CO	*W EXP 08/26/202	58518F117	336	400,000	SH		DFND		400,000	0	0
MEIRAGTX HLDGS PLC	COM	G59665102	5,207	415,874	SH		DFND		415,874	0	0
MENLO THERAPEUTICS INC	COM	586858102	9,602	5,550,208	SH		DFND		5,550,208	0	0
METEN EDTECHX ED GROUP LTD	*W EXP 03/31/202	G6055H106	70	125,000	SH		DFND		125,000	0	0
MUSTANG BIO INC	COM	62818Q104	1,463	460,000	SH		DFND		460,000	0	0
NATIONAL ENERGY SERVICES REU	*W EXP 05/05/202	G6375R115	398	723,700	SH		DFND		723,700	0	0
NAVIOS MARITIME CONTAINERS L	COM UNIT RP LP	Y62151108	1,810	2,235,000	SH		DFND		2,235,000	0	0
NIKOLA CORP	*W EXP 06/03/202	654110113	5,254	158,264	SH		DFND		158,264	0	0
NIKOLA CORP	COM	654110105	25,333	375,100	SH	Call	DFND		375,100	0	0
NIKOLA CORP	COM	654110105	58,703	869,300	SH	Put	DFND		869,300	0	0
NUVEEN NEW YORK AMT QLT MUNI	COM	670656107	185	14,400	SH		DFND		14,400	0	0
ON DECK CAP INC	COM	682163100	1,949	2,713,304	SH		DFND		2,713,304	0	0
ONCOSEC MED INC	COM	68234L306	164	79,935	SH		DFND		79,935	0	0
ORISUN ACQUISITION CORP	COM	68632T109	507	50,000	SH		DFND		50,000	0	0
ORISUN ACQUISITION CORP	RIGHT 05/31/2024	68632T125	15	50,000	SH		DFND		50,000	0	0
ORISUN ACQUISITION CORP	*W EXP 05/31/202	68632T117	19	50,000	SH		DFND		50,000	0	0
OTONOMY INC	COM	68906L105	3,258	900,000	SH		DFND		900,000	0	0
PBF LOGISTICS LP	UNIT LTD PTNR	69318Q104	153	15,663	SH		DFND		15,663	0	0
PENN VA CORP	COM	70788V102	8,430	884,603	SH		DFND		884,603	0	0
PG&E CORP	COM	69331C108	28,235	3,183,216	SH		DFND		3,183,216	0	0
PIERIS PHARMACEUTICALS INC	COM	720795103	279	90,000	SH		DFND		90,000	0	0
PROVENTION BIO INC	COM	74374N102	8,467	600,000	SH		DFND		600,000	0	0
ROTH CH ACQUISITION I CO	UNIT 01/28/2025	778675207	1,859	185,000	SH		DFND		185,000	0	0
SCHULTZE SPL PURP ACQUSTN CO	*W EXP 12/31/202	80821R117	387	300,000	SH		DFND		300,000	0	0
SCORPIO TANKERS INC	NOTE 3.000% 5/1	80918TAB5	1,740	2,000,000	PRN		DFND		2,000,000	0	0
SELECTA BIOSCIENCES INC	COM	816212104	2,029	714,619	SH		DFND		714,619	0	0
SIERRA ONCOLOGY INC	COM NEW	82640U404	1,696	140,156	SH		DFND		140,156	0	0
STRONGBRIDGE BIOPHARMA PLC	SHS USD	G85347105	1,735	458,971	SH		DFND		458,971	0	0
SYNDAX PHARMACEUTICALS INC	COM	87164F105	15,062	1,016,371	SH		DFND		1,016,371	0	0
TEEKAY TANKERS LTD	CL A	Y8565N300	1,130	88,124	SH		DFND		88,124	0	0
TENZING ACQUISITION CORP	*W EXP 02/23/202	G8708A108	94	200,000	SH		DFND		200,000	0	0
TESLA INC	COM	88160R101	26,995	25,000	SH	Call	DFND		25,000	0	0
TG THERAPEUTICS INC	COM	88322Q108	7,758	398,271	SH		DFND		398,271	0	0
TOTTENHAM ACQUISITION I LTD	*W EXP 05/06/202	G8959N114	108	542,000	SH		DFND		542,000	0	0
TOTTENHAM ACQUISITION I LTD	RIGHT 11/06/2020	G8959N122	40	134,000	SH		DFND		134,000	0	0
TRACON PHARMACEUTICALS INC	COM NEW	89237H209	147	75,000	SH		DFND		75,000	0	0
TRIDENT ACQUISITIONS CORP	*W EXP 05/09/202	89615T114	917	1,993,750	SH		DFND		1,993,750	0	0
UNIQURE NV	SHS	N90064101	21,629	480,000	SH		DFND		480,000	0	0
US ECOLOGY INC	*W EXP 10/17/202	91734M111	500	105,350	SH		DFND		105,350	0	0
VENTAS INC	COM	92276F100	9,155	250,000	SH		DFND		250,000	0	0
VENTAS INC	COM	92276F100	5,493	150,000	SH	Call	DFND		150,000	0	0
VENTAS INC	COM	92276F100	21,972	600,000	SH	Put	DFND		600,000	0	0
WARRIOR MET COAL INC	COM	93627C101	3,771	245,000	SH		DFND		245,000	0	0
WAYFAIR INC	CL A	94419L101	5,928	30,000	SH		DFND		30,000	0	0
WELLS FARGO CO NEW	COM	949746101	4,608	180,000	SH		DFND		180,000	0	0
WORLD ACCEP CORP DEL	COM	981419104	1,206	18,400	SH		DFND		18,400	0	0
XERIS PHARMACEUTICALS INC	NOTE 5.000% 7/1	98422LAA5	10,050	10,000,000	PRN		DFND		10,000,000	0	0
ZILLOW GROUP INC	CL A	98954M101	5,173	90,000	SH		DFND		90,000	0	0
ZOGENIX INC	COM NEW	98978L204	3,106	115,000	SH		DFND		115,000	0	0