683 Capital Management, LLC

NEW YORK, NY · CIK 1404574 · 13F filing filed 2026-08-14

SEC-registered investment adviser since 2012 · limited liability company

Assets managed$2.4bn
Staff10 · 5 in investment roles
Main clients (by assets)Private funds 100%
Private funds1 (1 hedge) · $2.4bn gross assets
Form ADV · 2026-03-30SEC adviser record

Legal entity683 CAPITAL MANAGEMENT, LLC (US)

$1.1bn reported value +0.9% vs Q1 2026

128positions

39.1%in top 10

19 new 28 added 38 reduced 99 sold out vs Q1 2026

Options: 3 call positions ($19.4m notional), 22 put positions ($929.6m notional) – listed below, not included above.

This report includes the holdings of 1 other manager that shares the investment decisions:

683 Capital Partners, LP – reports through this filing

Shares in two reports are counted once in each security's totals.

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	CAPITAL ONE FINL CORP COM COF	COF	365,000	$73.2m6.73%	6.73%	Reduced -10.0k	-10,000 -2.7%
2	CARVANA CO CL A CVNA	CVNA	750,000	$49.4m4.54%	4.54%	Reduced -25.0k	-25,000 -3.2%
3	ANAPTYSBIO INC COM ANAB	ANAB	660,000	$44.6m4.10%	4.10%	Added +35.0k	+35,000 5.6%
4	KASPI KZ JSC SPONSORED ADS KSPI	KSPI	470,000	$40.7m3.74%	3.74%	Reduced -5.0k	-5,000 -1.1%
5	BRIDGEBIO PHARMA INC NOTE 2.500% 3/1 · principal BBIO 2.5 03.15.27 · principal	BBIO 2.5 03.15.27	21,750,000	$38.8m3.57%	3.57%	Unchanged
6	BECTON DICKINSON & CO COM BDX	BDX	250,000	$37.8m3.48%	3.48%	Added +25.0k	+25,000 11.1%
7	MOLINA HEALTHCARE INC COM MOH	MOH	165,000	$37.7m3.47%	3.47%	Added +5.0k	+5,000 3.1%
8	HILTON GRAND VACATIONS INC COM HGV	HGV	690,000	$36.1m3.32%	3.32%	Reduced -85.0k	-85,000 -11.0%
9	PROTAGONIST THERAPEUTICS INC COM PTGX	PTGX	290,000	$35.5m3.27%	3.27%	Reduced -65.0k	-65,000 -18.3%
10	MEIRAGTX HLDGS PLC COM MGTX	MGTX	2,300,000	$31.1m2.86%	2.86%	Reduced -150.0k	-150,000 -6.1%
11	WAVE LIFE SCIENCES LTD SHS 96663EUR	96663EUR	4,950,000	$28.8m2.64%	2.64%	Added +50.0k	+50,000 1.0%
12	UNIQURE NV SHS QURE	QURE	575,000	$26.5m2.44%	2.44%	Added +75.0k	+75,000 15.0%
13	AMYLYX PHARMACEUTICALS INC COM AMLX	AMLX	1,279,512	$23.0m2.11%	2.11%	Reduced -250.5k	-250,488 -16.4%
14	AMENTUM HOLDINGS INC COM AMTM	AMTM	1,100,000	$22.7m2.09%	2.09%	Added +325.0k	+325,000 41.9%
15	TG THERAPEUTICS INC COM TGTX	TGTX	389,081	$21.4m1.97%	1.97%	Reduced -200.9k	-200,919 -34.0%
16	PHATHOM PHARMACEUTICALS INC COM PHAT	PHAT	1,850,000	$20.1m1.85%	1.85%	Unchanged
17	UNITY SOFTWARE INC COM U	U	615,000	$17.6m1.62%	1.62%	New
18	WESTERN ALLIANCE BANCORP COM WAL	WAL	200,000	$16.4m1.51%	1.51%	Reduced -25.0k	-25,000 -11.1%
19	IAMGOLD CORP COM IAG	IAG	1,010,000	$16.0m1.47%	1.47%	Reduced -40.0k	-40,000 -3.8%
20	ELEVANCE HEALTH INC COM ELV	ELV	40,000	$15.5m1.42%	1.42%	Unchanged
21	FIRST TRACKS BIOTHERAPEUTICS ORD SHS TRAX	TRAX	750,000	$15.1m1.39%	1.39%	New
22	KNOT OFFSHORE PARTNERS LP COM UNITS KNOP	KNOP	1,505,000	$15.0m1.38%	1.38%	Added +25.0k	+25,000 1.7%
23	SAREPTA THERAPEUTICS INC COM SRPT	SRPT	782,500	$14.1m1.29%	1.29%	Added +32.5k	+32,500 4.3%
24	UNITEDHEALTH GROUP INC COM UNH	UNH	32,000	$13.3m1.22%	1.22%	Unchanged
25	SEA LTD SPONSORD ADS SE	SE	135,000	$12.9m1.19%	1.19%	New
26	ALPHABET INC CAP STK CL A GOOGL	GOOGL	35,000	$12.5m1.15%	1.15%	Reduced -1.0k	-1,000 -2.8%
27	ZEVRA THERAPEUTICS INC COM NEW ZVRA	ZVRA	855,000	$12.3m1.13%	1.13%	Reduced -120.0k	-120,000 -12.3%
28	GENUINE PARTS CO COM GPC	GPC	101,000	$11.9m1.10%	1.10%	Reduced -4.0k	-4,000 -3.8%
29	ARIS MNG CORP COM ARIS	ARIS	770,000	$11.5m1.06%	1.06%	Reduced -30.0k	-30,000 -3.8%
30	INFLARX NV COM IFRX	IFRX	5,065,000	$11.3m1.04%	1.04%	Added +1.8m	+1,750,000 52.8%
31	COUPANG INC CL A CPNG	CPNG	650,000	$11.3m1.04%	1.04%	Added +40.0k	+40,000 6.6%
32	GXO LOGISTICS INCORPORATED COMMON STOCK GXO	GXO	215,000	$10.9m1.00%	1.00%	Reduced -285.0k	-285,000 -57.0%
33	HARMONY BIOSCIENCES HLDGS IN COM HRMY	HRMY	294,000	$10.7m0.98%	0.98%	New
34	ALNYLAM PHARMACEUTICALS INC COM ALNY	ALNY	35,000	$10.5m0.97%	0.97%	Added +14.0k	+14,000 66.7%
35	NU HLDGS LTD ORD SHS CL A NU	NU	750,000	$10.0m0.92%	0.92%	New
36	HOWARD HUGHES HOLDINGS INC COM HHH	HHH	140,000	$10.0m0.92%	0.92%	Added +104.5k	+104,500 294.4%
37	ASTRANA HEALTH INC COM NEW ASTH	ASTH	210,000	$9.7m0.90%	0.90%	Reduced -490.0k	-490,000 -70.0%
38	ENOVA INTL INC COM ENVA	ENVA	40,000	$9.6m0.89%	0.89%	Unchanged
39	SEADRILL LTD COM SDRL	SDRL	240,000	$9.1m0.83%	0.83%	Reduced -10.0k	-10,000 -4.0%
40	LENNAR CORP CL A LEN	LEN	100,000	$9.0m0.83%	0.83%	Added +95.0k	+95,000 1900.0%
41	BARRICK MNG CORP COM SHS B	B	242,000	$8.9m0.82%	0.82%	Reduced -158.0k	-158,000 -39.5%
42	LEXEO THERAPEUTICS INC COM LXEO	LXEO	1,875,000	$8.7m0.80%	0.80%	Added +675.0k	+675,000 56.2%
43	BRISTOW GROUP INC COM VTOL	VTOL	205,000	$8.5m0.78%	0.78%	Added +19.0k	+19,000 10.2%
44	ICON PLC SHS ICLR	ICLR	48,000	$8.3m0.77%	0.77%	Reduced -14.0k	-14,000 -22.6%
45	BUILDERS FIRSTSOURCE INC COM BLDR	BLDR	90,000	$8.1m0.74%	0.74%	Added +10.0k	+10,000 12.5%
46	SHATTUCK LABS INC COM STTK	STTK	1,157,216	$8.0m0.74%	0.74%	Added +357.2k	+357,216 44.6%
47	ANTERIX INC COM ATEX	ATEX	66,000	$6.8m0.62%	0.62%	Added +20.0k	+20,000 43.5%
48	CARTESIAN THERAPEUTICS INC COM NEW RNAC	RNAC	650,000	$6.8m0.62%	0.62%	Added +320.0k	+320,000 97.0%
49	NOBLE CORP PLC ORD SHS A NE	NE	175,000	$6.5m0.60%	0.60%	Added +25.0k	+25,000 16.7%
50	GOSSAMER BIO INC COM GOSS	GOSS	39,198,868	$6.5m0.59%	0.59%	Added +34.2m	+34,198,868 684.0%
51	ALECTOR INC COM ALEC	ALEC	3,200,000	$6.4m0.59%	0.59%	Unchanged
52	DOUBLEDOWN INTERACTIVE CO LT ADS DDI	DDI	550,000	$6.3m0.58%	0.58%	Added +35.3k	+35,344 6.9%
53	APARTMENT INVT & MGMT CO CL A AIV	AIV	2,100,000	$6.2m0.57%	0.57%	Added +650.0k	+650,000 44.8%
54	CARDLYTICS INC NOTE 4.250% 4/0 · principal CDLX 4.25 04.01.29 · principal	CDLX 4.25 04.01.29	20,500,000	$5.9m0.54%	0.54%	Added +5.0m	+5,000,000 32.3%
55	MOODYS CORP COM MCO	MCO	11,000	$5.0m0.46%	0.46%	Unchanged
56	S&P GLOBAL INC COM SPGI	SPGI	12,087	$4.9m0.45%	0.45%	Unchanged
57	ENERGY RECOVERY INC COM ERII	ERII	530,000	$4.8m0.44%	0.44%	Reduced -20.0k	-20,000 -3.6%
58	AMAZON COM INC COM AMZN	AMZN	19,000	$4.5m0.42%	0.42%	Reduced -7.5k	-7,500 -28.3%
59	BARNES & NOBLE ED INC COM NEW BNED	BNED	349,046	$4.4m0.40%	0.40%	Reduced -31.0k	-30,954 -8.2%
60	ATRIUM THERAPEUTICS INC COM RNA	RNA	300,000	$4.0m0.37%	0.37%	Unchanged
61	WW INTL INC COM NEW WW	WW	242,017	$3.9m0.36%	0.36%	Added +92.0k	+92,017 61.3%
62	SPACE ASSET ACQUISITION CORP USD CL A ORD SHS SAAQ	SAAQ	375,000	$3.8m0.35%	0.35%	Unchanged
63	HYPERLIQUID STRATEGIES INC COM PURR	PURR	480,000	$3.8m0.35%	0.35%	Reduced -370.0k	-370,000 -43.5%
64	MEREO BIOPHARMA GROUP PLC SPON ADS MREO	MREO	11,777,856	$3.7m0.34%	0.34%	Reduced -222.1k	-222,144 -1.9%
65	MAGNUM ICE CREAM CO NV ORD SHS MICC	MICC	201,000	$3.5m0.32%	0.32%	New
66	INSPIRED ENTMT INC COM INSE	INSE	423,580	$3.5m0.32%	0.32%	Reduced -624.9k	-624,916 -59.6%
67	SILVERCORP METALS INC COM SVM	SVM	333,400	$3.4m0.31%	0.31%	Reduced -72.6k	-72,600 -17.9%
68	ALDEYRA THERAPEUTICS INC COM ALDX	ALDX	1,450,000	$3.1m0.28%	0.28%	Reduced -50.0k	-50,000 -3.3%
69	CONNECT BIOPHARMA HLDGS LTD SHS CNTB	CNTB	1,285,000	$3.1m0.28%	0.28%	Added +385.0k	+385,000 42.8%
70	PAN AMERN SILVER CORP COM PAAS	PAAS	67,000	$3.0m0.28%	0.28%	Reduced -33.0k	-33,000 -33.0%
71	HYLIION HOLDINGS CORP COMMON STOCK HYLN	HYLN	575,000	$3.0m0.28%	0.28%	Reduced -150.0k	-150,000 -20.7%
72	NAVIGATOR HLDGS LTD SHS NVGS	NVGS	140,000	$2.6m0.24%	0.24%	Reduced -46.0k	-46,000 -24.7%
73	PROQR THRAPEUTICS N V SHS EURO PRQR	PRQR	1,393,067	$2.6m0.24%	0.24%	New
74	LAFAYETTE ACQUISITION CORP ORD SHS LAFA	LAFA	250,000	$2.5m0.23%	0.23%	Unchanged
75	ACP HOLDINGS ACQUISITION COR CL A ACGC	ACGC	250,000	$2.5m0.23%	0.23%	New
76	IMMUNIC INC COM NEW IMUX	IMUX	147,245	$2.3m0.21%	0.21%	New
77	INVIVYD INC COM IVVD	IVVD	2,482,543	$2.2m0.20%	0.20%	Reduced -32.5k	-32,457 -1.3%
78	INSMED INC COM PAR $.01 INSM	INSM	20,000	$2.1m0.20%	0.20%	New
79	OCTAVE INTELLIGENCE PLC ORD SHS CL B OCTV	OCTV	125,000	$2.0m0.19%	0.19%	New
80	CHENGHE ACQUISITION III CO ORD SHS CL A CHEC	CHEC	200,000	$2.0m0.19%	0.19%	Unchanged
81	ARCHIMEDES TECH SPAC PTNRS I ORD SHS ARCI	ARCI	200,000	$2.0m0.18%	0.18%	Unchanged
82	FG IMPERII ACQUISITION CORP ORD SHS CL A FGII	FGII	200,000	$2.0m0.18%	0.18%	Unchanged
83	LEGATO MERGER CORP IV ORD SHS LEGO	LEGO	200,000	$2.0m0.18%	0.18%	Unchanged
84	PANGAEA LOGISTICS SOLUTION L SHS PANL	PANL	300,000	$1.9m0.18%	0.18%	Reduced -9.5k	-9,500 -3.1%
85	COINBASE GLOBAL INC COM CL A COIN	COIN	13,000	$1.9m0.17%	0.17%	New
86	AMRIZE LTD SHS AMRZ	AMRZ	35,000	$1.9m0.17%	0.17%	Unchanged
87	HUDSON TECHNOLOGIES INC COM HDSN	HDSN	325,000	$1.9m0.17%	0.17%	Unchanged
88	SATELLOS BIOSCIENCE INC COM MSLE	MSLE	230,833	$1.8m0.17%	0.17%	Unchanged
89	BRIDGEBIO PHARMA INC NOTE 1.750% 3/0 · principal BBIO 1.75 03.01.31 · principal	BBIO 1.75 03.01.31	1,000,000	$1.7m0.15%	0.15%	Unchanged
90	BLUE WTR ACQUISITION CORP. I ORD SHS CL A BLUW	BLUW	150,000	$1.5m0.14%	0.14%	Unchanged
91	MAIA BIOTECHNOLOGY INC COM MAIA	MAIA	1,066,666	$1.5m0.14%	0.14%	Unchanged
92	EQV VENTURES AC CORP. II ORD SHS CL A EVAC	EVAC	150,000	$1.5m0.14%	0.14%	Unchanged
93	D MARKET ELECTR SVCS & TRADI SPONSORED ADS HEPS	HEPS	500,000	$1.5m0.13%	0.13%	New
94	PYXIS ONCOLOGY INC COMMON STOCK PYXS	PYXS	459,367	$1.4m0.13%	0.13%	Reduced -436.9k	-436,896 -48.8%
95	WILLOW LANE ACQUISITION CRP USD CL A ORD SHS WLII	WLII	125,000	$1.3m0.12%	0.12%	New
96	PROMIS NEUROSCIENCES INC COM SHS PMN	PMN	95,000	$1.3m0.11%	0.11%	Added +2.1k	+2,150 2.3%
97	LIGHTWAVE ACQUISITION CORP USD CL A ORD SHS LWAC	LWAC	100,000	$1.0m0.09%	0.09%	Unchanged
98	IN8BIO INC COM NEW INAB	INAB	724,637	$1.0m0.09%	0.09%	Unchanged
99	CARDLYTICS INC COM NEW CDLX	CDLX	200,000	$898.0k0.08%	0.08%	New
100	OYSTER ENTERPRISES II ACQUIS ORD SHS CL A OYSE	OYSE	75,000	$771.8k0.07%	0.07%	Unchanged

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
ELI LILLY & CO LLY	LLY	15,000	$13.8m15.0k shares
AMICUS THERAPEUTICS INC FOLD	FOLD	775,000	$11.2m775.0k shares
GOSSAMER BIO INC GOSS 5 06.01.27	GOSS 5 06.01.27	27,877,000	$10.6m27.9m shares
APELLIS PHARMACEUTICALS INC APLS	APLS	250,000	$10.1m250.0k shares
LENNAR CORP LEN.B	LEN.B	115,000	$9.7m115.0k shares
BOOKING HOLDINGS INC BKNG	BKNG	55,000	$9.3m55.0k shares
COGENT COMMUNICATIONS HLDGS CCOI	CCOI	450,300	$8.5m450.3k shares
GLOBALSTAR INC GSAT	GSAT	98,000	$6.5m98.0k shares
PERCEPTIVE CAP SOLUTIONS COR FRNM	FRNM	561,923	$6.2m561.9k shares
VIKING THERAPEUTICS INC VKTX	VKTX	130,000	$4.2m130.0k shares
THERAVANCE BIOPHARMA INC 0TB	0TB	250,000	$4.1m250.0k shares
CAESARS ENTERTAINMENT INC NE CZR	CZR	150,000	$4.0m150.0k shares
ABEONA THERAPEUTICS INC ABEO	ABEO	770,000	$3.4m770.0k shares
IMMUNIC INC		2,450,000	$2.7m2.5m shares
RXO INC RXO	RXO	180,000	$2.6m180.0k shares
NETGEAR INC NTGR	NTGR	100,000	$2.2m100.0k shares
CACI INTL INC CACI	CACI	4,000	$2.2m4.0k shares
STAGWELL INC STGW	STGW	305,000	$1.9m305.0k shares
SCIENCE APPLICATIONS INTL CO SAIC	SAIC	19,000	$1.8m19.0k shares
CARDLYTICS INC		1,450,000	$1.5m1.4m shares
ARMATA PHARMACEUTICALS INC ARMP	ARMP	137,000	$1.4m137.0k shares
WILLOW LANE ACQUISITION CRP WLIIU	WLIIU	125,000	$1.3m125.0k shares
IRSA INVERSIONES Y REP S A IRS	IRS	70,000	$1.1m70.0k shares
AMPLIFY ENERGY CORP NEW AMPY	AMPY	160,000	$998.4k160.0k shares
AXT INC AXTI	AXTI	17,000	$968.7k17.0k shares

Options (notional value)

Underlying	Ticker	Type	Shares controlled	Notional	Change
PALANTIR TECHNOLOGIES INC PLTR · Put	PLTR	Put	2,428,700	$283.4m2.4m shares	Added
ELI LILLY & CO LLY · Put	LLY	Put	154,000	$184.7m154.0k shares	Added
NVIDIA CORPORATION NVDA · Put	NVDA	Put	456,000	$91.2m456.0k shares	Unchanged
SPDR SER TR XBI · Put	XBI	Put	540,000	$85.5m540.0k shares	New
ABBVIE INC ABBV · Put	ABBV	Put	245,000	$61.7m245.0k shares	New
MADRIGAL PHARMACEUTICALS INC MDGL · Put	MDGL	Put	90,000	$48.3m90.0k shares	Unchanged
PRAXIS PRECISION MEDICINES I PRAX · Put	PRAX	Put	110,400	$37.0m110.4k shares	Reduced
ALNYLAM PHARMACEUTICALS INC ALNY · Put	ALNY	Put	107,500	$32.4m107.5k shares	Reduced
ARK ETF TR ARKG · Put	ARKG	Put	750,000	$31.5m750.0k shares	Added
IONQ INC IONQ · Put	IONQ	Put	486,700	$25.9m486.7k shares	Reduced
UNIQURE NV QURE · Call	QURE	Call	316,200	$14.6m316.2k shares	Reduced
MODERNA INC MRNA · Put	MRNA	Put	156,000	$10.9m156.0k shares	Unchanged
LENNAR CORP LEN · Put	LEN	Put	100,000	$9.0m100.0k shares	Reduced
HIMS & HERS HEALTH INC HIMS · Put	HIMS	Put	220,000	$7.6m220.0k shares	Unchanged
INSMED INC INSM · Put	INSM	Put	35,000	$3.7m35.0k shares	Reduced
KYMERA THERAPEUTICS INC KYMR · Put	KYMR	Put	30,000	$3.4m30.0k shares	New
VIKING THERAPEUTICS INC VKTX · Call	VKTX	Call	80,000	$3.1m80.0k shares	Added
IOVANCE BIOTHERAPEUTICS INC IOVA · Put	IOVA	Put	644,300	$2.7m644.3k shares	Unchanged
COINBASE GLOBAL INC COIN · Put	COIN	Put	17,000	$2.5m17.0k shares	Unchanged
NOVO-NORDISK A S NVO · Put	NVO	Put	50,000	$2.4m50.0k shares	Reduced
MICROSTRATEGY INC MSTR · Put	MSTR	Put	25,000	$2.2m25.0k shares	Reduced
AMYLYX PHARMACEUTICALS INC AMLX · Call	AMLX	Call	96,600	$1.7m96.6k shares	Unchanged
ULTRAGENYX PHARMACEUTICAL IN RARE · Put	RARE	Put	50,000	$1.7m50.0k shares	New
TRANSMEDICS GROUP INC TMDX · Put	TMDX	Put	20,000	$1.3m20.0k shares	Unchanged
HARMONY BIOSCIENCES HLDGS IN HRMY · Put	HRMY	Put	14,700	$535.2k14.7k shares	Unchanged

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

Company	Ticker	Stake	Change	Schedule	Last filed
GOSSAMER BIO INC GOSS · 13G · filed 2026-06-11	GOSS	10.0%≈ $8.2m	+6.1 pts	13G	2026-06-11
MEREO BIOPHARMA GROUP PLC MREO · 13G · filed 2026-01-06	MREO	8.2%	new	13G	2026-01-06
IN8BIO INC INAB · 13G · filed 2025-12-30	INAB	7.9%≈ $1.1m	new	13G	2025-12-30
IMMUNIC INC 13G · filed 2026-02-17		5.9%	-4.0 pts	13G	2026-02-17