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
Expires:	Oct 31, 2018
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
ADIENT PLC	ORD SHS	G0084W101	18,169	855,000	SH		DFND		855,000	0	0
ADMA BIOLOGICS INC	COM	000899104	2,800	700,000	SH		DFND		700,000	0	0
AFFIMED N V	COM	N01045108	1,164	425,000	SH		DFND		425,000	0	0
AGILE THERAPEUTICS INC	COM	00847L100	183	73,000	SH		DFND		73,000	0	0
AKAZOO SA	SHS	L0164E108	527	100,000	SH		DFND		100,000	0	0
AKAZOO SA	*W EXP 09/11/202	L0164E116	245	489,700	SH		DFND		489,700	0	0
ALDEYRA THERAPEUTICS INC	COM	01438T106	10,038	1,727,700	SH		DFND		1,727,700	0	0
ALLEGRO MERGER CORP	*W EXP 01/06/202	01749N111	80	443,772	SH		DFND		443,772	0	0
ALNYLAM PHARMACEUTICALS INC	COM	02043Q107	25,913	225,000	SH		DFND		225,000	0	0
AMCI ACQUISITION CORP	*W EXP 05/20/202	00165R119	71	200,000	SH		DFND		200,000	0	0
ANGI HOMESERVICES INC	COM CL A	00183L102	22,023	2,600,000	SH		DFND		2,600,000	0	0
APPLIED GENETIC TECHNOL CORP	COM	03820J100	2,521	557,834	SH		DFND		557,834	0	0
APTOSE BIOSCIENCES INC	COM NEW	03835T200	567	100,000	SH		DFND		100,000	0	0
AQUESTIVE THERAPEUTICS INC	COM	03843E104	195	33,422	SH		DFND		33,422	0	0
ARAVIVE INC	COM	03890D108	202	14,756	SH		DFND		14,756	0	0
ARBUTUS BIOPHARMA CORP	COM	03879J100	215	77,368	SH		DFND		77,368	0	0
ARCTURUS THERAPEUTICS HLDG I	COM	03969T109	177	16,292	SH		DFND		16,292	0	0
ARDELYX INC	COM	039697107	15,010	2,000,000	SH		DFND		2,000,000	0	0
ARYA SCIENCES ACQUISITION CO	SHS CL A	G3165V109	10,400	1,000,000	SH		DFND		1,000,000	0	0
ARYA SCIENCES ACQUISITION CO	*W EXP 10/10/202	G3165V125	855	500,000	SH		DFND		500,000	0	0
ASPEN AEROGELS INC	COM	04523Y105	171	22,012	SH		DFND		22,012	0	0
ASPEN GROUP INC	COM NEW	04530L203	100	12,464	SH		DFND		12,464	0	0
AT HOME GROUP INC	COM	04650Y100	6,600	1,200,000	SH		DFND		1,200,000	0	0
ATARA BIOTHERAPEUTICS INC	COM	046513107	412	25,000	SH		DFND		25,000	0	0
AVENUE THERAPEUTICS INC	COM NEW	05360L205	131	13,600	SH		DFND		13,600	0	0
BEYOND MEAT INC	COM	08862E109	212	2,800	SH	Call	DFND		2,800	0	0
BIG ROCK PARTNERS ACQUISI CO	*W EXP 12/01/202	089482111	15	82,500	SH		DFND		82,500	0	0
BIG ROCK PARTNERS ACQUISI CO	RIGHT 12/01/2022	089482129	43	165,000	SH		DFND		165,000	0	0
BIOCERES CROP SOLUTIONS CORP	*W EXP 03/14/202	G1117K106	32	200,000	SH		DFND		200,000	0	0
BIOMX INC	*W EXP 10/16/202	09090D111	77	150,000	SH		DFND		150,000	0	0
CAPITAL ONE FINL CORP	COM	14040H105	1,544	15,000	SH		DFND		15,000	0	0
CARDLYTICS INC	COM	14161W105	36,145	575,000	SH		DFND		575,000	0	0
CARVANA CO	CL A	146869102	124,268	1,350,000	SH		DFND		1,350,000	0	0
CHASERG TECHNLGY ACQUISITN C	*W EXP 04/10/202	16166A111	154	69,900	SH		DFND		69,900	0	0
CHIMERIX INC	COM	16934W106	670	330,061	SH		DFND		330,061	0	0
COCA COLA CO	COM	191216100	16,605	300,000	SH	Put	DFND		300,000	0	0
CONTANGO OIL & GAS COMPANY	COM NEW	21075N204	155	42,310	SH		DFND		42,310	0	0
CONTRAFECT CORP	COM	212326102	1,428	2,300,000	SH		DFND		2,300,000	0	0
COOPER STD HLDGS INC	COM	21676P103	11,606	350,000	SH		DFND		350,000	0	0
CRESUD S A C I F Y A	SPONSORED ADR	226406106	6,775	962,302	SH		DFND		962,302	0	0
CUE BIOPHARMA INC	COM	22978P106	5,080	320,000	SH		DFND		320,000	0	0
DHT HOLDINGS INC	SHS NEW	Y2065G121	4,264	515,000	SH		DFND		515,000	0	0
DIAMOND S SHIPPING INC	COM	Y20676105	11,464	684,845	SH		DFND		684,845	0	0
DIANA SHIPPING INC	COM	Y2066G104	350	112,411	SH		DFND		112,411	0	0
DYADIC INTL INC DEL	COM	26745T101	181	35,032	SH		DFND		35,032	0	0
EASTMAN KODAK CO	COM NEW	277461406	134	28,889	SH		DFND		28,889	0	0
EDTECHX HLDGS ACQUISITION CO	*W EXP 12/31/202	28138X111	45	125,000	SH		DFND		125,000	0	0
EIGER BIOPHARMACEUTICALS INC	COM	28249U105	27,565	1,850,000	SH		DFND		1,850,000	0	0
ELLINGTON RESIDENTIAL MTG RE	COM SHS BEN INT	288578107	177	16,351	SH		DFND		16,351	0	0
ENERGY RECOVERY INC	COM	29270J100	5,287	540,000	SH		DFND		540,000	0	0
ENOVA INTL INC	COM	29357K103	9,744	405,000	SH		DFND		405,000	0	0
ESTRE AMBIENTAL INC	*W EXP 12/21/202	G3206V118	2	437,883	SH		DFND		437,883	0	0
EURONAV NV ANTWERPEN	SHS	B38564108	1,255	100,000	SH		DFND		100,000	0	0
FALCON MINERALS CORP	*W EXP 07/21/202	30607B208	53	149,600	SH		DFND		149,600	0	0
FATE THERAPEUTICS INC	COM	31189P102	4,403	225,000	SH		DFND		225,000	0	0
FENNEC PHARMACEUTICALS INC	COM	31447P100	6,165	950,000	SH		DFND		950,000	0	0
FOAMIX PHARMACEUTICALS LTD	SHS	M46135105	1,249	375,100	SH		DFND		375,100	0	0
FORTRESS BIOTECH INC	COM	34960Q109	715	277,857	SH		DFND		277,857	0	0
FORUM MERGER II CORP	*W EXP 09/30/202	34986F111	138	300,000	SH		DFND		300,000	0	0
FULGENT GENETICS INC	COM	359664109	199	15,460	SH		DFND		15,460	0	0
GALMED PHARMACEUTICALS LTD	SHS	M47238106	4,624	800,000	SH		DFND		800,000	0	0
GENCO SHIPPING & TRADING LTD	SHS	Y2685T131	1,917	180,496	SH		DFND		180,496	0	0
GENERAL MTRS CO	COM	37045V100	27,450	750,000	SH	Call	DFND		750,000	0	0
GLOBALSCAPE INC	COM	37940G109	190	19,301	SH		DFND		19,301	0	0
GLOBALSTAR INC	COM	378973408	7,996	15,415,778	SH		DFND		15,415,778	0	0
GLOBALSTAR INC	NOTE 5.750% 4/0	378973AD3	434	513,719	PRN		DFND		513,719	0	0
GORDON POINTE ACQUISITION CO	*W EXP 07/30/202	382788115	81	225,000	SH		DFND		225,000	0	0
GRAF INDL CORP	*W EXP 12/31/202	384278115	99	225,000	SH		DFND		225,000	0	0
GREIF INC	CL B	397624206	617	11,910	SH		DFND		11,910	0	0
HARROW HEALTH INC	COM	415858109	211	27,136	SH		DFND		27,136	0	0
HERSHEY CO	COM	427866108	14,698	100,000	SH	Put	DFND		100,000	0	0
HILL INTERNATIONAL INC	COM	431466101	184	58,275	SH		DFND		58,275	0	0
HL ACQUISITIONS CORP	*W EXP 06/21/202	G4603R122	63	180,000	SH		DFND		180,000	0	0
HL ACQUISITIONS CORP	RIGHT 07/17/2023	G4603R130	46	180,000	SH		DFND		180,000	0	0
HOSTESS BRANDS INC	*W EXP 11/04/202	44109J114	4,965	2,520,000	SH		DFND		2,520,000	0	0
IAC INTERACTIVECORP	COM	44919P508	20,427	82,000	SH		DFND		82,000	0	0
ICAD INC	COM NEW	44934S206	192	24,704	SH		DFND		24,704	0	0
IDEAYA BIOSCIENCES INC	COM	45166A102	168	22,364	SH		DFND		22,364	0	0
IMMUNOVANT INC	COM	45258J102	213	13,400	SH		DFND		13,400	0	0
IMMUNOVANT INC	*W EXP 12/18/202	45258J110	557	278,258	SH		DFND		278,258	0	0
INFUSYSTEM HLDGS INC	COM	45685K102	183	21,492	SH		DFND		21,492	0	0
INSPIRED ENTMT INC	COM	45782N108	5,412	801,824	SH		DFND		801,824	0	0
INTEL CORP	COM	458140100	5,985	100,000	SH	Put	DFND		100,000	0	0
INTEVAC INC	COM	461148108	193	27,300	SH		DFND		27,300	0	0
IRSA INVERSIONES Y REP S A	GLOBL DEP RCPT	450047204	6,271	906,224	SH		DFND		906,224	0	0
IRSA PROPIEDADES COMERCIALES	SPONSORED ADR	463588103	3,252	194,165	SH		DFND		194,165	0	0
IVERIC BIO INC	COM	46583P102	288	33,608	SH		DFND		33,608	0	0
KADMON HLDGS INC	COM	48283N106	770	170,000	SH		DFND		170,000	0	0
KALEYRA INC	*W EXP 12/12/202	483379111	170	150,000	SH		DFND		150,000	0	0
KROGER CO	COM	501044101	14,495	500,000	SH	Call	DFND		500,000	0	0
LEAP THERAPEUTICS INC	COM	52187K101	168	150,142	SH		DFND		150,142	0	0
LEGACY ACQUISITION CORP	*W EXP 11/30/202	524643111	269	500,000	SH		DFND		500,000	0	0
LEISURE ACQUISITION CORP	*W EXP 12/05/201	52539T115	129	125,000	SH		DFND		125,000	0	0
LF CAP ACQUISITION CORP	*W EXP 06/22/202	50200K116	209	450,000	SH		DFND		450,000	0	0
LSI INDS INC	COM	50216C108	178	29,420	SH		DFND		29,420	0	0
LUNA INNOVATIONS	COM	550351100	179	24,504	SH		DFND		24,504	0	0
MAIDEN HOLDINGS LTD	SHS	G5753U112	5,908	7,876,964	SH		DFND		7,876,964	0	0
MANNING & NAPIER INC	CL A	56382Q102	170	97,752	SH		DFND		97,752	0	0
MARINUS PHARMACEUTICALS INC	COM	56854Q101	1,999	925,382	SH		DFND		925,382	0	0
MEGALITH FINL ACQUISITION CO	*W EXP 08/26/202	58518F117	128	400,000	SH		DFND		400,000	0	0
MEIRAGTX HOLDINGS PLC	COM	G59665102	8,108	405,000	SH		DFND		405,000	0	0
MIRAGEN THERAPEUTICS INC	COM	60463E103	139	290,000	SH		DFND		290,000	0	0
MONEYGRAM INTL INC	COM NEW	60935Y208	178	84,960	SH		DFND		84,960	0	0
MUDRICK CAP ACQUISITION CORP	COM CLASS A	624745105	19,632	1,900,000	SH		DFND		1,900,000	0	0
MUDRICK CAP ACQUISITION CORP	*W EXP 02/12/202	624745113	1,225	2,500,000	SH		DFND		2,500,000	0	0
MUSTANG BIO INC	COM	62818Q104	1,877	460,000	SH		DFND		460,000	0	0
NANTKWEST INC	COM	63016Q102	223	58,748	SH		DFND		58,748	0	0
NATIONAL ENERGY SERVICES REU	*W EXP 05/05/202	G6375R115	653	725,000	SH		DFND		725,000	0	0
NAVIOS MARITIME CONTAINERS L	COM UNIT RP LP	Y62151108	4,805	2,235,000	SH		DFND		2,235,000	0	0
NOVUS THERAPEUTICS INC	COM	67011N105	174	300,000	SH		DFND		300,000	0	0
NYMOX PHARMACEUTICAL CORP	COM	P73398102	189	85,763	SH		DFND		85,763	0	0
ON DECK CAP INC	COM	682163100	11,844	2,860,720	SH		DFND		2,860,720	0	0
ONCOSEC MED INC	COM	68234L306	145	79,935	SH		DFND		79,935	0	0
ONEMAIN HLDGS INC	COM	68268W103	6,112	145,000	SH		DFND		145,000	0	0
OPES ACQUISITION CORP	*W EXP 03/13/202	68373P118	27	150,000	SH		DFND		150,000	0	0
ORACLE CORP	COM	68389X105	13,245	250,000	SH	Put	DFND		250,000	0	0
ORION GROUP HOLDINGS INC	COM	68628V308	177	34,176	SH		DFND		34,176	0	0
ORISUN ACQUISITION CORP	UNIT 99/99/9999	68632T208	508	50,000	SH		DFND		50,000	0	0
OTONOMY INC	COM	68906L105	4,213	1,100,000	SH		DFND		1,100,000	0	0
OVID THERAPEUTICS INC	COM	690469101	175	42,088	SH		DFND		42,088	0	0
PARTY CITY HOLDCO INC	COM	702149105	2,340	1,000,000	SH		DFND		1,000,000	0	0
PC-TEL INC	COM	69325Q105	177	20,924	SH		DFND		20,924	0	0
PENN VA CORP NEW	COM	70788V102	13,718	452,000	SH		DFND		452,000	0	0
PENSARE ACQUISITION CORP	*W EXP 07/27/202	70957E113	38	115,000	SH		DFND		115,000	0	0
PENSARE ACQUISITION CORP	RIGHT 99/99/9999	70957E121	175	605,000	SH		DFND		605,000	0	0
PEPSICO INC	COM	713448108	13,667	100,000	SH	Put	DFND		100,000	0	0
PIERIS PHARMACEUTICALS INC	COM	720795103	326	90,000	SH		DFND		90,000	0	0
POWERFLEET INC	COM	73931J109	194	29,757	SH		DFND		29,757	0	0
PROCTER & GAMBLE CO	COM	742718109	24,980	200,000	SH	Put	DFND		200,000	0	0
PROVENTION BIO INC	COM	74374N102	233	15,608	SH		DFND		15,608	0	0
RED VIOLET INC	COM	75704L104	201	10,876	SH		DFND		10,876	0	0
REDHILL BIOPHARMA LTD	SPONSORED ADS	757468103	6,280	1,034,650	SH		DFND		1,034,650	0	0
SCHULTZE SPL PURP ACQUSTN CO	*W EXP 12/31/202	80821R117	131	300,000	SH		DFND		300,000	0	0
SCORPIO TANKERS INC	NOTE 3.000% 5/1	80918TAB5	2,440	2,000,000	PRN		DFND		2,000,000	0	0
SCORPIO TANKERS INC	SHS	Y7542C130	962	24,459	SH		DFND		24,459	0	0
SEACHANGE INTL INC	COM	811699107	193	46,148	SH		DFND		46,148	0	0
SEADRILL LTD	COM	G7998G106	1,331	523,936	SH		DFND		523,936	0	0
SEQUENTIAL BRNDS GROUP INC N	COM	81734P107	171	500,000	SH		DFND		500,000	0	0
SERVICESOURCE INTL INC	COM	81763U100	196	117,302	SH		DFND		117,302	0	0
SMITH MICRO SOFTWARE INC	COM NEW	832154207	163	40,952	SH		DFND		40,952	0	0
SOLENO THERAPEUTICS INC	COM NEW	834203200	1,240	421,887	SH		DFND		421,887	0	0
STAGE STORES INC	COM NEW	85254C305	220	27,056	SH		DFND		27,056	0	0
STRONGBRIDGE BIOPHARMA PLC	SHS USD	G85347105	1,273	608,971	SH		DFND		608,971	0	0
SYNDAX PHARMACEUTICALS INC	COM	87164F105	8,121	925,000	SH		DFND		925,000	0	0
TEEKAY TANKERS LTD	CL A	Y8565N300	3,671	153,124	SH		DFND		153,124	0	0
TENZING ACQUISITION CORP	*W EXP 02/23/202	G8708A108	36	200,000	SH		DFND		200,000	0	0
TESLA INC	COM	88160R101	10,458	25,000	SH	Call	DFND		25,000	0	0
TESLA INC	COM	88160R101	103,537	247,500	SH	Put	DFND		247,500	0	0
TG THERAPEUTICS INC	COM	88322Q108	4,421	398,271	SH		DFND		398,271	0	0
TIBERIUS ACQUISITION CORP	*W EXP 02/28/202	88633A115	513	450,000	SH		DFND		450,000	0	0
TKK SYMPHONY ACQUISITION COR	*W EXP 02/20/202	G88950129	14	225,000	SH		DFND		225,000	0	0
TKK SYMPHONY ACQUISITION COR	RIGHT 02/20/2020	G88950137	56	225,000	SH		DFND		225,000	0	0
TOTTENHAM ACQUISITION I LTD	*W EXP 05/06/202	G8959N114	35	542,000	SH		DFND		542,000	0	0
TOTTENHAM ACQUISITION I LTD	RIGHT 06/05/2020	G8959N122	22	134,000	SH		DFND		134,000	0	0
TOWNSQUARE MEDIA INC	CL A	892231101	191	19,119	SH		DFND		19,119	0	0
TRACON PHARMACEUTICALS INC	COM NEW	89237H209	316	135,000	SH		DFND		135,000	0	0
TRIDENT ACQUISITIONS CORP	*W EXP 05/09/202	89615T114	199	1,993,750	SH		DFND		1,993,750	0	0
TRIVAGO N V	SPON ADS A SHS	89686D105	5,650	2,156,700	SH		DFND		2,156,700	0	0
UNIQURE NV	SHS	N90064101	35,113	490,000	SH		DFND		490,000	0	0
UNIVERSAL TECHNICAL INST INC	COM	913915104	195	25,288	SH		DFND		25,288	0	0
US ECOLOGY INC	*W EXP 10/17/202	91734M111	1,222	105,350	SH		DFND		105,350	0	0
VECTOIQ ACQUISITION CORP	*W EXP 05/11/202	92243N111	295	500,000	SH		DFND		500,000	0	0
VERU INC	COM	92536C103	219	65,402	SH		DFND		65,402	0	0
WARRIOR MET COAL INC	COM	93627C101	5,177	245,000	SH		DFND		245,000	0	0
WAYFAIR INC	CL A	94419L101	16,267	180,000	SH		DFND		180,000	0	0
WORKHORSE GROUP INC	COM NEW	98138J206	191	62,912	SH		DFND		62,912	0	0
ZAFGEN INC	COM	98885E103	2,999	2,701,566	SH		DFND		2,701,566	0	0
ZOGENIX INC	COM NEW	98978L204	2,607	50,000	SH		DFND		50,000	0	0