683 Capital Management, LLC

Q2 2026 13F-HR Holdings

Location
New York, NY
Holdings as of
6/30/2026
Date filed
8/14/2026
Form type
13F-HR
Num holdings
153
Total value ($000)
$2,036,355
Net value change ($000)
+120,246 (6.3%)
New positions
17
Sold out positions
98
Turnover %
22.9%
Sector allocation + QoQ delta (equities-only)

Holdings aggregated across other managers listed in the original SEC filing. View detailed breakdown

Prev filing: 5/15/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q1 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
QURE 18,310 224.0%
U 17,577 NEW
MOH 16,408 76.9%
FIRST TRACKS BIOTHERAPEUTICS 15,090 NEW
SE 12,937 NEW
HRMY 10,705 NEW
NU 10,020 NEW
ANAB 9,887 28.5%
MGTX 9,856 46.5%
LEN 8,615 1985.0%
Top Reduces (Value $000, Stocks/ETFs)
GXO -15,024 -58.0%
LLY -13,797 -100.0%
FOLD -11,207 -100.0%
APLS -10,058 -100.0%
LEN -9,674 -100.0%
BKNG -9,263 -100.0%
CCOI -8,484 -100.0%
B -7,427 -45.5%
ASTH -7,418 -43.2%
WAVE LIFE SCIENCES LTD -6,765 -19.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 948,992 (46.6% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type