Institutions / Weiss Asset Management LP

Weiss Asset Management LP

CIK 1357550 · Institutionalso an insider · as of Mar 31, 2026
Portfolio value
$5.43B
Positions
472
As of
Mar 31, 2026

Portfolio trend

Portfolio value

$5.43B+1156.7%
$5.43B$2.75B$62.54MQ2 '25Q3 '25Q4 '25Q1 '26

Positions

472+9340.0%
4722371Q2 '25Q3 '25Q4 '25Q1 '26

Top holdings

Mar 31, 2026View all 472 →
CompanyClassValueShares% of portfolio
NVIDIA Corp—$973.43M5,581,56917.9%
Sprott Asset Management LP—$199.76M8,190,3703.7%
Strategy Inc—$170.44M154,820,0003.1%
Super Micro Computer Inc—$129.14M148,376,0002.4%
Nextera Energy Inc—$128.13M2,547,0002.4%
Theravance Biopharma Inc—$121.03M7,457,0602.2%
Strategy Inc—$105.99M121,016,0002.0%
Ugi Corp New—$99.59M70,890,0001.8%
Hologic Inc—$93.01M1,230,4361.7%
iShares Bitcoin Trust ETF—$87.61M2,280,2281.6%
Bitmine Immersion Technologies, Inc.BMNRCommon Stock$85.61M4,328,2941.6%
Strategy Inc—$83.30M667,5021.5%
Sprott Asset Management LP—$83.01M1,739,5001.5%
Strategy Inc—$80.87M69,890,0001.5%
Super Micro Computer Inc—$79.83M99,079,0001.5%
Greenbrier Cos Inc—$69.71M60,197,0001.3%
McEwen Inc.—$66.18M31,300,0001.2%
Albemarle Corp—$59.03M820,0001.1%
Amicus Therapeutics Inc—$56.00M3,872,9021.0%
Strategy Inc—$53.64M52,395,0001.0%
Weibo Corp—$50.78M48,143,0000.9%
Tesla Inc—$48.14M129,5080.9%
Ppl Corp—$47.47M930,0000.9%
Epr Pptys—$47.26M2,067,8310.9%
Lockheed Martin Corp—$37.24M61,6160.7%

Activity

Mar 31, 2026View full history →
InsidersInstitutions
This fund's 13F position changes — what it's buying and selling.
DateActionCompanyValueShares ΔPosition afterImpact
Q1 2026
as of
NewNVIDIA Corp$973.43M+5.6M
5,581,569
17.93% of portfolio
high
Q1 2026
as of
New85207K107$199.76M+8.2M
8,190,370
3.68% of portfolio
high
Q4 2025
as of
NewAvidity Biosciences, Inc.$155.88M+2.2M
2,161,093
2.87% of portfolio
high
Q1 2026
as of
ExitAvidity Biosciences, Inc.$-155.88M-2.2M
-100.00%
—
high
Q1 2026
as of
New65339F655$128.13M+2.5M
2,547,000
2.36% of portfolio
high
Q3 2025
as of
NewM2682V108$124.04M+257K
256,726
2.28% of portfolio
high
Q1 2026
as of
NewG8807B106$121.03M+7.5M
7,457,060
2.23% of portfolio
high
Q1 2026
as of
ExitM2682V108$-100.94M-226K
-100.00%
—
high
Q1 2026
as of
NewHologic Inc$93.01M+1.2M
1,230,436
1.71% of portfolio
high
Q1 2026
as of
New46438F101$87.61M+2.3M
2,280,228
1.61% of portfolio
high

Insider transactions

Also files Forms 3 / 4 / 5
DateActionCompanyValueShares ΔPosition afterImpact
Feb 13, 2026SellAVDL
Avadel Pharmaceuticals PLC
Ordinary Shares
$233.35M-11.1M
-100.00%
0
0.00% of shares
high