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	11,370	1,253,588	SH		DFND		1,253,588	0	0
ADMA BIOLOGICS INC	COM	000899104	5,760	2,000,000	SH		DFND		2,000,000	0	0
AFFIMED N V	COM	N01045108	2,370	1,500,000	SH		DFND		1,500,000	0	0
AKAZOO SA	SHS	L0164E108	279	99,812	SH		DFND		99,812	0	0
AKAZOO SA	*W EXP 09/11/202	L0164E116	160	489,700	SH		DFND		489,700	0	0
ALDEYRA THERAPEUTICS INC	COM	01438T106	2,284	925,000	SH		DFND		925,000	0	0
ALLEGRO MERGER CORP	*W EXP 01/06/202	01749N111	22	443,772	SH		DFND		443,772	0	0
ALNYLAM PHARMACEUTICALS INC	COM	02043Q107	18,504	170,000	SH		DFND		170,000	0	0
ALTRIA GROUP INC	COM	02209S103	20,258	523,860	SH		DFND		523,860	0	0
AMAZON COM INC	COM	023135106	23,396	12,000	SH		DFND		12,000	0	0
AMCI ACQUISITION CORP	*W EXP 05/20/202	00165R119	35	200,000	SH		DFND		200,000	0	0
ANGI HOMESERVICES INC	COM CL A	00183L102	12,926	2,462,173	SH		DFND		2,462,173	0	0
APPLIED GENETIC TECHNOL CORP	COM	03820J100	1,755	535,000	SH		DFND		535,000	0	0
APTOSE BIOSCIENCES INC	COM NEW	03835T200	1,882	316,887	SH		DFND		316,887	0	0
ARCTURUS THERAPEUTICS HLDG I	COM	03969T109	229	16,855	SH		DFND		16,855	0	0
ARDELYX INC	COM	039697107	12,247	2,154,184	SH		DFND		2,154,184	0	0
ARYA SCIENCES ACQUISITION CO	SHS CL A	G3165V109	10,180	1,000,000	SH		DFND		1,000,000	0	0
ARYA SCIENCES ACQUISITION CO	*W EXP 10/10/202	G3165V125	920	500,000	SH		DFND		500,000	0	0
AT HOME GROUP INC	COM	04650Y100	2,244	1,110,793	SH		DFND		1,110,793	0	0
BARRICK GOLD CORPORATION	COM	067901108	9,370	511,477	SH		DFND		511,477	0	0
BERKSHIRE HATHAWAY INC DEL	CL B NEW	084670702	9,142	50,000	SH	Put	DFND		50,000	0	0
BIG ROCK PARTNERS ACQUISI CO	*W EXP 12/01/202	089482111	5	82,500	SH		DFND		82,500	0	0
BIG ROCK PARTNERS ACQUISI CO	RIGHT 12/01/2022	089482129	21	165,000	SH		DFND		165,000	0	0
BIOCERES CROP SOLUTIONS CORP	*W EXP 03/14/202	G1117K106	28	200,000	SH		DFND		200,000	0	0
BIOMX INC	*W EXP 10/16/202	09090D111	53	88,800	SH		DFND		88,800	0	0
BONANZA CREEK ENERGY INC	COM NEW	097793400	140	12,500	SH		DFND		12,500	0	0
BROOGE HLDGS LTD	*W EXP 12/20/202	G1611B115	280	349,402	SH		DFND		349,402	0	0
CAPITAL ONE FINL CORP	COM	14040H105	28,024	555,817	SH		DFND		555,817	0	0
CARDLYTICS INC	COM	14161W105	30,297	866,606	SH		DFND		866,606	0	0
CARGURUS INC	COM CL A	141788109	4,811	254,000	SH		DFND		254,000	0	0
CARS COM INC	COM	14575E105	710	165,000	SH		DFND		165,000	0	0
CARVANA CO	CL A	146869102	80,619	1,463,423	SH		DFND		1,463,423	0	0
CHIMERIX INC	COM	16934W106	475	330,061	SH		DFND		330,061	0	0
CIMPRESS PLC	SHS EURO	G2143T103	4,522	84,997	SH		DFND		84,997	0	0
CIT GROUP INC	COM NEW	125581801	863	50,000	SH		DFND		50,000	0	0
COCA COLA CO	COM	191216100	8,850	200,000	SH	Put	DFND		200,000	0	0
CONTRAFECT CORP	COM NEW	212326300	676	117,500	SH		DFND		117,500	0	0
COOPER STD HLDGS INC	COM	21676P103	1,336	130,038	SH		DFND		130,038	0	0
CRESUD S A C I F Y A	SPONSORED ADR	226406106	3,349	962,302	SH		DFND		962,302	0	0
CUE BIOPHARMA INC	COM	22978P106	4,541	320,000	SH		DFND		320,000	0	0
DHT HOLDINGS INC	SHS NEW	Y2065G121	7,670	1,000,010	SH		DFND		1,000,010	0	0
DIAGEO P L C	SPON ADR NEW	25243Q205	22,246	175,000	SH		DFND		175,000	0	0
DIAMOND S SHIPPING INC	COM	Y20676105	8,475	717,653	SH		DFND		717,653	0	0
DIANA SHIPPING INC	COM	Y2066G104	138	93,229	SH		DFND		93,229	0	0
DUPONT DE NEMOURS INC	COM	26614N102	13,640	400,000	SH		DFND		400,000	0	0
EIGER BIOPHARMACEUTICALS INC	COM	28249U105	13,872	2,040,000	SH		DFND		2,040,000	0	0
ENERGY RECOVERY INC	COM	29270J100	3,869	520,000	SH		DFND		520,000	0	0
ENOVA INTL INC	COM	29357K103	15,909	1,097,939	SH		DFND		1,097,939	0	0
EURONAV NV ANTWERPEN	SHS	B38564108	1,692	150,000	SH		DFND		150,000	0	0
FALCON MINERALS CORP	*W EXP 07/21/202	30607B208	22	149,100	SH		DFND		149,100	0	0
FATE THERAPEUTICS INC	COM	31189P102	4,997	225,000	SH		DFND		225,000	0	0
FENNEC PHARMACEUTICALS INC	COM	31447P100	5,644	950,000	SH		DFND		950,000	0	0
FORTRESS BIOTECH INC	COM	34960Q109	379	200,000	SH		DFND		200,000	0	0
FORUM MERGER II CORP	*W EXP 09/30/202	34986F111	81	300,000	SH		DFND		300,000	0	0
GALMED PHARMACEUTICALS LTD	SHS	M47238106	2,706	781,820	SH		DFND		781,820	0	0
GENCO SHIPPING & TRADING LTD	SHS	Y2685T131	1,159	180,496	SH		DFND		180,496	0	0
GENERAL MTRS CO	COM	37045V100	15,585	750,000	SH	Call	DFND		750,000	0	0
GLOBALSTAR INC	COM	378973408	4,542	15,415,778	SH		DFND		15,415,778	0	0
GLOBALSTAR INC	NOTE 5.750% 4/0	378973AD3	324	513,719	PRN		DFND		513,719	0	0
GLRY STR NW MDIA GRUP HLDG L	SHS	G39973105	41	10,000	SH		DFND		10,000	0	0
GOLAR LNG PARTNERS LP	COM UNIT LPI	Y2745C102	2,891	860,375	SH		DFND		860,375	0	0
GORDON POINTE ACQUISITION CO	*W EXP 07/30/202	382788115	41	225,000	SH		DFND		225,000	0	0
GRAF INDL CORP	*W EXP 12/31/202	384278115	23	225,000	SH		DFND		225,000	0	0
GREIF INC	CL B	397624206	477	11,910	SH		DFND		11,910	0	0
GRUBHUB INC	COM	400110102	25,083	615,821	SH		DFND		615,821	0	0
HL ACQUISITIONS CORP	*W EXP 06/21/202	G4603R122	9	180,000	SH		DFND		180,000	0	0
HL ACQUISITIONS CORP	RIGHT 07/17/2023	G4603R130	14	180,000	SH		DFND		180,000	0	0
HOSTESS BRANDS INC	*W EXP 11/04/202	44109J114	1,437	2,520,000	SH		DFND		2,520,000	0	0
IAC INTERACTIVECORP	COM	44919P508	37,736	210,550	SH		DFND		210,550	0	0
IAMGOLD CORP	COM	450913108	684	300,000	SH		DFND		300,000	0	0
IMMUNOVANT INC	*W EXP 12/18/202	45258J110	609	253,600	SH		DFND		253,600	0	0
INSPIRED ENTMT INC	COM	45782N108	2,759	816,325	SH		DFND		816,325	0	0
INTL GNRL INSURANCE HLDNGS L	*W EXP 03/17/202	G4809J114	189	450,000	SH		DFND		450,000	0	0
IOVANCE BIOTHERAPEUTICS INC	COM	462260100	2,993	100,000	SH		DFND		100,000	0	0
IRSA INVERSIONES Y REP S A	GLOBL DEP RCPT	450047204	3,153	906,224	SH		DFND		906,224	0	0
IRSA PROPIEDADES COMERCIALES	SPONSORED ADR	463588103	1,408	194,165	SH		DFND		194,165	0	0
ISHARES TR	U.S. REAL ES ETF	464287739	348	5,000	SH	Call	DFND		5,000	0	0
ISHARES TR	U.S. REAL ES ETF	464287739	2,783	40,000	SH	Put	DFND		40,000	0	0
JOHNSON & JOHNSON	COM	478160104	6,557	50,000	SH	Put	DFND		50,000	0	0
JPMORGAN CHASE & CO	COM	46625H100	3,151	35,000	SH		DFND		35,000	0	0
JUMIA TECHNOLOGIES AG	SPONSORED ADS	48138M105	905	309,779	SH		DFND		309,779	0	0
KADMON HLDGS INC	COM	48283N106	712	170,000	SH		DFND		170,000	0	0
KALEYRA INC	*W EXP 12/12/202	483379111	115	135,000	SH		DFND		135,000	0	0
KROGER CO	COM	501044101	3,012	100,000	SH	Call	DFND		100,000	0	0
LEAP THERAPEUTICS INC	COM	52187K101	437	276,466	SH		DFND		276,466	0	0
LEGACY ACQUISITION CORP	*W EXP 11/30/202	524643111	125	500,000	SH		DFND		500,000	0	0
LEISURE ACQUISITION CORP	*W EXP 12/05/201	52539T115	21	125,000	SH		DFND		125,000	0	0
LF CAP ACQUISITION CORP	*W EXP 06/22/202	50200K116	117	450,000	SH		DFND		450,000	0	0
MAIDEN HOLDINGS LTD	SHS	G5753U112	7,168	7,876,964	SH		DFND		7,876,964	0	0
MARINUS PHARMACEUTICALS INC	COM	56854Q101	1,879	925,382	SH		DFND		925,382	0	0
MEGALITH FINL ACQUISITION CO	*W EXP 08/26/202	58518F117	88	400,000	SH		DFND		400,000	0	0
MEIRAGTX HOLDINGS PLC	COM	G59665102	5,589	415,874	SH		DFND		415,874	0	0
MENLO THERAPEUTICS INC	COM	586858102	5,354	1,997,611	SH		DFND		1,997,611	0	0
MUDRICK CAP ACQUISITION CORP	COM CLASS A	624745105	19,662	1,900,000	SH		DFND		1,900,000	0	0
MUDRICK CAP ACQUISITION CORP	*W EXP 02/12/202	624745113	875	2,500,000	SH		DFND		2,500,000	0	0
MUSTANG BIO INC	COM	62818Q104	1,233	460,000	SH		DFND		460,000	0	0
NATIONAL ENERGY SERVICES REU	*W EXP 05/05/202	G6375R115	239	725,000	SH		DFND		725,000	0	0
NAVIOS MARITIME CONTAINERS L	COM UNIT RP LP	Y62151108	1,587	2,235,000	SH		DFND		2,235,000	0	0
NOVUS THERAPEUTICS INC	COM	67011N105	369	946,204	SH		DFND		946,204	0	0
NUVEEN NEW YORK AMT QLT MUNI	COM	670656107	180	14,400	SH		DFND		14,400	0	0
ON DECK CAP INC	COM	682163100	5,327	3,459,669	SH		DFND		3,459,669	0	0
ONCOSEC MED INC	COM	68234L306	102	79,935	SH		DFND		79,935	0	0
ONEMAIN HLDGS INC	COM	68268W103	1,122	58,715	SH		DFND		58,715	0	0
OPES ACQUISITION CORP	*W EXP 03/13/202	68373P118	8	150,000	SH		DFND		150,000	0	0
ORISUN ACQUISITION CORP	COM	68632T109	510	50,000	SH		DFND		50,000	0	0
ORISUN ACQUISITION CORP	RIGHT 05/31/2024	68632T125	9	50,000	SH		DFND		50,000	0	0
ORISUN ACQUISITION CORP	*W EXP 05/31/202	68632T117	3	50,000	SH		DFND		50,000	0	0
OTONOMY INC	COM	68906L105	1,773	900,000	SH		DFND		900,000	0	0
PBF LOGISTICS LP	UNIT LTD PTNR	69318Q104	106	15,663	SH		DFND		15,663	0	0
PENN VA CORP	COM	70788V102	3,406	1,102,306	SH		DFND		1,102,306	0	0
PG&E CORP	COM	69331C108	1	100	SH		DFND		100	0	0
PG&E CORP	COM	69331C108	4,495	500,000	SH	Put	DFND		500,000	0	0
PIERIS PHARMACEUTICALS INC	COM	720795103	205	90,000	SH		DFND		90,000	0	0
PROCTER & GAMBLE CO	COM	742718109	16,500	150,000	SH	Put	DFND		150,000	0	0
SCHULTZE SPL PURP ACQUSTN CO	*W EXP 12/31/202	80821R117	66	300,000	SH		DFND		300,000	0	0
SCORPIO TANKERS INC	NOTE 3.000% 5/1	80918TAB5	1,700	2,000,000	PRN		DFND		2,000,000	0	0
SCORPIO TANKERS INC	SHS	Y7542C130	1,912	100,000	SH		DFND		100,000	0	0
SELECTA BIOSCIENCES INC	COM	816212104	1,722	714,619	SH		DFND		714,619	0	0
SIERRA ONCOLOGY INC	COM NEW	82640U404	1,376	140,156	SH		DFND		140,156	0	0
SOLENO THERAPEUTICS INC	COM NEW	834203200	952	400,000	SH		DFND		400,000	0	0
STARBUCKS CORP	COM	855244109	6,575	100,000	SH		DFND		100,000	0	0
STRONGBRIDGE BIOPHARMA PLC	SHS USD	G85347105	868	458,971	SH		DFND		458,971	0	0
SYNDAX PHARMACEUTICALS INC	COM	87164F105	10,235	933,038	SH		DFND		933,038	0	0
TEEKAY TANKERS LTD	CL A	Y8565N300	3,184	143,124	SH		DFND		143,124	0	0
TENZING ACQUISITION CORP	*W EXP 02/23/202	G8708A108	18	200,000	SH		DFND		200,000	0	0
TESLA INC	COM	88160R101	13,100	25,000	SH	Call	DFND		25,000	0	0
TESLA INC	COM	88160R101	103,490	197,500	SH	Put	DFND		197,500	0	0
TG THERAPEUTICS INC	COM	88322Q108	3,919	398,271	SH		DFND		398,271	0	0
TOTTENHAM ACQUISITION I LTD	*W EXP 05/06/202	G8959N114	23	542,000	SH		DFND		542,000	0	0
TOTTENHAM ACQUISITION I LTD	RIGHT 06/05/2020	G8959N122	15	134,000	SH		DFND		134,000	0	0
TRACON PHARMACEUTICALS INC	COM NEW	89237H209	128	75,000	SH		DFND		75,000	0	0
TRIDENT ACQUISITIONS CORP	*W EXP 05/09/202	89615T114	189	1,993,750	SH		DFND		1,993,750	0	0
UNIQURE NV	SHS	N90064101	23,251	490,000	SH		DFND		490,000	0	0
US ECOLOGY INC	*W EXP 10/17/202	91734M111	464	105,350	SH		DFND		105,350	0	0
SELECT SECTOR SPDR TR	SBI INT-UTILS	81369Y886	2,992	54,000	SH	Put	DFND		54,000	0	0
VECTOIQ ACQUISITION CORP	*W EXP 05/11/202	92243N111	975	500,000	SH		DFND		500,000	0	0
VECTOIQ ACQUISITION CORP	COM	92243N103	2,394	225,000	SH		DFND		225,000	0	0
VENTAS INC	COM	92276F100	6,030	225,000	SH		DFND		225,000	0	0
VENTAS INC	COM	92276F100	4,020	150,000	SH	Call	DFND		150,000	0	0
VENTAS INC	COM	92276F100	16,080	600,000	SH	Put	DFND		600,000	0	0
WARRIOR MET COAL INC	COM	93627C101	3,134	295,000	SH		DFND		295,000	0	0
WAYFAIR INC	CL A	94419L101	12,024	225,000	SH		DFND		225,000	0	0
WELLS FARGO CO NEW	COM	949746101	5,166	180,000	SH		DFND		180,000	0	0
WILLIAMS SONOMA INC	COM	969904101	1,446	34,000	SH		DFND		34,000	0	0
WORLD ACCEP CORP DEL	COM	981419104	1,005	18,400	SH		DFND		18,400	0	0
ZAFGEN INC	COM	98885E103	2,025	2,630,368	SH		DFND		2,630,368	0	0
ZOGENIX INC	COM NEW	98978L204	2,597	105,000	SH		DFND		105,000	0	0