DOSSIER · 13F-HR · Q1 2026

Weiss Asset Management LP

$7.1B in tracked AUM across 561 positions as of Q1 2026.

WA
CIK 0001357550 · last filed Mar 31, 2026
Total AUM
$7.1B
as of Q1 2026
Holdings
561
positions
Whale Score
60
60
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026

Portfolio Overview

Weiss Asset Management LP’s 13F filing for the period ending September 30, 2025, reveals a substantial and actively managed portfolio with a total value of approximately $5.63 billion spread across 354 holdings. The portfolio demonstrates a high-conviction strategy characterized by significant concentration in top-tier assets, with the top three positions alone accounting for over 42% of the total portfolio value. The fund appears to have undergone a drastic strategic piv...

Key Holdings

The portfolio is dominated by a few massive positions that signal a strong focus on the AI infrastructure and digital asset ecosystems.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q1 2026. Methodology

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
NVDA
NVIDIA CORPORATION
$1.2B6.7M19.7%
02
MSTR
STRATEGY INC
$204M1.6M3.5%
03
PSLV
SPROTT ASSET MANAGEMENT LP
$200M8.2M3.4%
04
MSTR 0.625 09/15/28
STRATEGY INC
$170M154.8M2.9%
05
SMCI 2.25 07/15/28
SUPER MICRO COMPUTER INC
$129M148.4M2.2%
06
NEE 7.375 02/15/29
NEXTERA ENERGY INC
$128M2.5M2.2%
07
G8807B106
THERAVANCE BIOPHARMA INC
$121M7.5M2.0%
08
MSTR 0 03/01/30
STRATEGY INC
$106M121.0M1.8%
09
UGI 5 06/01/28
UGI CORP NEW
$100M70.9M1.7%
10
HOLX
HOLOGIC INC
$93M1.2M1.6%

Filing history

2026Q1Mar 31
$5.9B 21.9%
488 positionsView →
2025Q4Dec 31
$7.6B 25.3%
566 positionsView →
2025Q3Sep 30
$6.0B 30.7%
359 positionsView →
2025Q2Jun 30
$8.7B 74.5%
410 positionsLocked
2025Q1Mar 31
$5.0B 2.8%
305 positionsLocked
2024Q4Dec 31
$4.9B 10.9%
601 positionsLocked
2024Q3Sep 30
$4.4B 65.6%
581 positionsLocked
2024Q2Jun 30
$2.6B 9.0%
272 positionsLocked
2024Q1Mar 31
$2.9B 39.0%
308 positionsLocked
2023Q4Dec 31
$2.1B 24.0%
374 positionsLocked
2023Q3Sep 30
$1.7B 29.4%
185 positionsLocked
2023Q2Jun 30
$1.3B 16.5%
219 positionsLocked
Showing 12 of 72