DOSSIER · 13F-HR · Q4 2025

683 Capital Management, LLC

$2.3B in tracked AUM across 234 positions as of Q4 2025.

6C
CIK 0001404574 · last filed Dec 31, 2025
Total AUM
$2.3B
as of Q4 2025
Holdings
234
positions
Whale Score
58
58
tracked
Activity
no data
changes this Q
AI Analysis · Q4 2025
Comprehensive Analysis of 683 Capital Management LLC 13F Filing
1. Portfolio Overview

For the reporting period ending September 30, 2025, 683 Capital Management managed a portfolio valued at approximately $1.20 billion spread across 96 holdings. This represents a significant decrease in portfolio value of -21.2% compared to the previous quarter's value of $1.52 billion.

The firm demonstrates an active management style with substantial turnover during the quarter. The filing re...

2. Key Holdings

The portfolio is characterized by a few high-conviction positions that dominate the asset allocation.

  • Palantir Technologies Inc (PLTR): This is the undisputed crown jewel of the portfolio, valued at $206.9 million and comprising 17.25% of total assets. The firm aggressively increased this position by 65.5% (adding $113.5 million) during the quarter. This massive accumulation indicates strong conviction in Palantir's AI and government software growth trajectory.
  • Tesla Inc (TSLA): The second-largest holding, representing 7.81% of the portfolio ($93.6 million). While no specific change data was provided for the stake size in the summary, its retention as a top-tier position alongside Palantir suggests a tilt toward disruptive technology and consumer cyclicals.
  • Capital One Financial Corp (COF): The largest financial holding, valued at $85.0 million (7.09% of the portfolio). This represents a steady bet on the financial sector, with a minor increase of 0.9% during the quarter.
  • UniQure NV (QURE) & Alnylam Pharmaceuticals (ALNY): These are the primary healthcare anchors, representing 5.21% and 5.16% of the portfolio, respectively. However, the firm reduced exposure to UniQure by 19.1% and Alnylam by 4.0%, potentially taking profits or rebalancing after strong performance.

Quarter at a glance — Q4 2025

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q4 2025.

#HoldingValueSharesWeight
01
PLTR
PALANTIR TECHNOLOGIES INC
$414M2.3M18.0%
02
LLY
ELI LILLY & CO
$166M154K7.2%
03
COF
CAPITAL ONE FINL CORP
$99M410K4.3%
04
TSLA
TESLA INC
$94M210K4.1%
05
NVDA
NVIDIA CORPORATION
$85M456K3.7%
06
Y95308105
WAVE LIFE SCIENCES LTD
$68M4.0M3.0%
07
CVNA
CARVANA CO
$63M150K2.8%
08
MDGL
MADRIGAL PHARMACEUTICALS INC
$58M99K2.5%
09
ALNY
ALNYLAM PHARMACEUTICALS INC
$58M145K2.5%
10
PRAX
PRAXIS PRECISION MEDICINES I
$50M170K2.2%

Filing history

2025Q4Dec 31
$2.3B 91.7%
234 positionsView →
2025Q3Sep 30
$1.2B 21.2%
96 positionsView →
2025Q2Jun 30
$1.5B 5.0%
134 positionsLocked
2025Q1Mar 31
$1.4B 10.1%
140 positionsLocked
2024Q4Dec 31
$1.6B 22.7%
225 positionsLocked
2024Q3Sep 30
$1.3B 0.6%
143 positionsLocked
2024Q2Jun 30
$1.3B 3.2%
145 positionsLocked
2024Q1Mar 31
$1.4B 11.9%
135 positionsLocked
2023Q4Dec 31
$1.2B 5.1%
259 positionsLocked
2023Q3Sep 30
$1.3B 7.6%
157 positionsLocked
2023Q2Jun 30
$1.4B 3.7%
167 positionsLocked
2023Q1Mar 31
$1.3B 13.6%
298 positionsLocked
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