13F Insight
DOSSIER · 13F-HR · Q2 2026

WHITEBOX ADVISORS LLC

$7.7B in tracked AUM across 667 positions as of Q2 2026.

WA
CIK 0001257391 · last filed Jun 30, 2026
Total AUM
$7.7B
as of Q2 2026
Holdings
667
—
positions
Whale Score
62
62
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of Whitebox Advisors LLC 13F Filing (Q3 2025)
Portfolio Overview

Whitebox Advisors LLC reported a significant expansion in its portfolio activity for the quarter ending September 30, 2025. The total portfolio value surged by 18.3%, rising from $4.71 billion to $5.57 billion. This growth was accompanied by a high turnover rate, characterized by 20 new positions and 20 complete exits, alongside substantial increases in existing core holdings. The firm manag...

Key Holdings

The portfolio is dominated by a few high-conviction names, with Western Digital Corp (WDC) standing as the singular largest holding. WDC represents 11.77% of the total portfolio ($655.61M), a position the firm aggressively increased by 26.3% (adding $365M). This suggests a strong bet on the data storage and semiconductor cycle.

The second and third largest positions are Bloom Energy Corp, which appears twice in the data (likely representing different share classes or splits), comprising a combined 12.66% of the portfolio. The firm increased these stakes by over $490M combined, indicating a major thematic play on energy transition or industrial power solutions.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
SPY
STATE STR SPDR S&P 500 ETF T
$373M500K4.9%02
SATS 3.875 11/30/30
ECHOSTAR CORP
$319M102.2M4.2%03
SPHR 3.5 12/01/28
SPHERE ENTERTAINMENT CO
$299M61.1M3.9%04
SNOW 0 10/01/29
SNOWFLAKE INC
$257M145.3M3.4%05
BABA 0.5 06/01/31
ALIBABA GROUP HLDG LTD
$227M192.4M3.0%06
SMCI 0 06/15/30
SUPER MICRO COMPUTER INC
$213M240.3M2.8%07
APLD 2.75 06/01/30
APPLIED DIGITAL CORP
$202M50.7M2.6%08
GME 0 04/01/30
GAMESTOP CORP
$198M194.3M2.6%09
GME 0 06/15/32
GAMESTOP CORP
$176M174.0M2.3%10
PEN
PENUMBRA INC
$160M507K2.1%

Filing history

2026Q2Jun 30
$7.7B▼ 7.2%
667 positionsView →2026Q1Mar 31
$8.2B▲ 14.7%
573 positionsView →2025Q4Dec 31
$7.2B▲ 24.9%
495 positionsView →2025Q3Sep 30
$5.8B▲ 17.5%
372 positionsView →2025Q2Jun 30
$4.9B▲ 36.8%
384 positionsLocked2025Q1Mar 31
$3.6B▲ 2.8%
263 positionsLocked2024Q4Dec 31
$3.5B▼ 5.6%
273 positionsLocked2024Q3Sep 30
$3.7B▲ 5.3%
322 positionsLocked2024Q2Jun 30
$3.5B▼ 13.2%
350 positionsLocked2024Q1Mar 31
$4.0B▲ 10.4%
343 positionsLocked2023Q4Dec 31
$3.7B▲ 15.7%
333 positionsLocked2023Q3Sep 30
$3.2B▼ 14.2%
385 positionsLocked
Showing 12 of 78