Weiss Asset Management LP

CIK

1357550

Location

BOSTON, MA

Portfolio Value

Mid $4,328,553,315

Diversification

Diversified

Filing Date

Global Rank

#747 / 8,622 ▼ 104 · as of Mar 2026

Top Industry

Semiconductors 29.1%

3Y Alpha vs SPY

-11.5%

Period ended 4 months ago

Filed May 15, 2026 · 2mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Not a measure of this manager's performance. Most of Weiss Asset Management LP's reported book is option positions, which a stock-only clone cannot replicate. The figures below are the return of the 68% that is ordinary stock — as little as 47% in one quarter — so a manager whose options thesis lost money can still show a large gain here.

Cloned portfolio

+23.7%

SPY

+67.9%

Annualised alpha

-11.5%

Max drawdown

−27.2%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 68% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

408 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

26.9%

+4.4 pts

Top 5

41.2%

−1.0 pts

Top 10

49.5%

+1.0 pts

HHI

812

Diversified+148

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	43.4%	$1,880,397,789	73
Financial Services	16.4%	$708,559,042	74
Healthcare	12.7%	$549,787,616	49
Industrials	4.8%	$207,219,480	39
Consumer Cyclical	3.9%	$168,642,298	47
Energy	3.7%	$159,020,275	21
Real Estate	3.3%	$141,237,632	21
Unclassified	3.2%	$139,794,847	3
Basic Materials	3.1%	$133,523,255	27
Consumer Defensive	2.4%	$102,066,491	18
Communication Services	1.8%	$78,867,211	26
Utilities	1.4%	$59,437,379	10

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
AIV	Apartment Investment & Management Co	+6,900,456	8,150,456	$33,172,355
AMBP	Ardagh Metal Packaging S.A.	+4,476,638	4,516,338	$18,291,168
BMNR	Bitmine Immersion Technologies, Inc.	+3,394,677	4,328,294	$85,613,655
FOLD	AMICUS THERAPEUTICS, INC.	+1,980,105	3,872,902	$56,002,162
FRMI	Fermi Inc.	+1,960,764	2,415,027	$14,103,757
CLBT	Cellebrite DI Ltd.	+1,846,851	1,899,841	$26,179,808
MLTX	MoonLake Immunotherapeutics	+1,375,367	1,708,328	$31,843,233
EMPD	Empery Digital Inc.	+1,188,024	1,916,928	$8,108,605
SMCI	Super Micro Computer, Inc.	+898,970	1,896,585	$43,185,240
GETY	Getty Images Holdings, Inc.	+656,790	863,035	$684,386
CORZ	Core Scientific, Inc./tx	+556,509	557,590	$8,341,546
IQ	iQIYI, Inc.	+550,454	1,360,054	$1,836,072
IREN	IREN Ltd	+517,423	605,619	$20,760,619
SBET	Sharplink, Inc.	+488,247	3,042,548	$19,624,434
CSGP	Costar Group, Inc.	+463,180	497,500	$20,069,150
PAAS	Pan American Silver Corp	+285,203	342,503	$18,710,938
CDE	Coeur Mining, Inc.	+237,690	251,651	$4,723,489
SYF	Synchrony Financial	+217,716	243,486	$16,561,917
AMKR	Amkor Technology, Inc.	+217,484	300,000	$13,509,000
VG	Venture Global, Inc.	+198,960	1,816,360	$28,625,833
ANET	Arista Networks, Inc.	+196,680	206,200	$25,317,236
NFLX	Netflix Inc	+165,135	168,305	$16,182,525
SRE	Sempra	+162,949	178,510	$17,345,816
BRR	ProCap Financial, Inc.	+138,859	1,388,683	$2,930,121
KR	Kroger Co	+126,456	148,595	$10,752,334
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
MPT	Medical Properties Trust Inc	−5,948,401	2,000,000	$9,260,000
IBIT	iShares Bitcoin Trust ETF	−5,521,755	2,280,228	$87,606,359
CAN	Canaan Inc.	−3,434,266	39,871,384	$17,224,437
ETHA	iShares Ethereum Trust ETF	−2,047,226	564,806	$8,940,878
MSTR	Strategy Inc	−1,468,318	1,638,602	$204,497,529
LKQ	Lkq Corp	−739,346	9,502	$279,073
MOS	Mosaic Co	−615,873	38,535	$982,642
TTD	Trade Desk, Inc.	−592,749	17,520	$397,528
NNE	Nano Nuclear Energy Inc.	−539,262	1,052,756	$21,560,442
HL	Hecla Mining Co/De/	−388,040	458,020	$8,532,912
SITC	SITE Centers Corp.	−354,106	2,052,215	$11,081,961
MBC	MasterBrand, Inc.	−307,502	130,517	$1,084,596
COO	Cooper Companies, Inc.	−246,578	48,004	$3,432,286
AVTR	Avantor, Inc.	−227,493	527,903	$4,138,759
NNOX	Nano-X Imaging Ltd.	−215,391	2,793,339	$6,340,879
BX	Blackstone Inc.	−214,277	29,854	$3,432,911
NEM	NEWMONT Corp /DE/	−206,891	4,337	$469,480
SO	Southern Co	−201,393	131,300	$12,673,076
HUT	Hut 8 Corp.	−164,160	472,186	$22,150,245
BKKT	Bakkt, Inc.	−134,110	678,530	$4,993,980
DD	DuPont de Nemours, Inc.	−129,500	98,200	$4,497,559
COIN	Coinbase Global, Inc.	−125,832	11,121	$1,941,837
AGNC	AGNC Investment Corp.	−116,220	59,223	$594,006
A	Agilent Technologies, Inc.	−114,535	54,390	$6,199,372
ENTG	Entegris Inc	−111,469	29,680	$3,479,683
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
PSLV	Sprott Physical Silver Trust	8,190,370	$199,763,124
HOLX	HOLOGIC INC	1,230,436	$93,008,657
CEF	Sprott Physical Gold & Silver Trust	1,739,500	$83,008,940
LMT	Lockheed Martin Corp	61,616	$37,240,094
OVV	Ovintiv Inc.	596,820	$35,427,235
KMB	Kimberly Clark Corp	342,607	$33,051,297
SPG	Simon Property Group Inc.	151,181	$28,199,791
APLS	Apellis Pharmaceuticals, Inc.	700,000	$28,161,000
KKR	KKR & Co. Inc.	291,505	$26,964,212
MMM	3M Co	185,404	$26,926,222
VLO	Valero Energy Corp/Tx	105,816	$26,145,017
ALMS	Alumis Inc.	1,097,417	$24,176,096
HPE	Hewlett Packard Enterprise Co	1,004,400	$23,914,764
HAL	Halliburton Co	538,940	$21,013,270
TAP-A	Molson Coors Beverage Co	472,592	$20,349,811
CNTA	Centessa Pharmaceuticals plc	510,407	$20,273,366
HOOD	Robinhood Markets, Inc.	290,987	$20,165,399
MASI	Masimo Corp	112,600	$20,028,162
CWAN	Clearwater Analytics Holdings, Inc.	843,439	$19,947,332
CINF	Cincinnati Financial Corp	125,354	$19,724,451
P	Everpure, Inc.	316,600	$18,692,064
AAUC	Allied Gold Corp	592,425	$18,388,872
NWAX	New America Acquisition I Corp.	1,767,280	$17,690,472
PHYS	Sprott Physical Gold Trust	484,101	$17,156,539
USAR	USA Rare Earth, Inc.	1,130,000	$17,102,550
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
EXAS	EXACT SCIENCES CORP	848,700	$86,193,972
KVUE	Kenvue Inc.	4,879,739	$84,175,497
ADP	Automatic Data Processing Inc	320,605	$82,469,224
LIN	Linde PLC	148,874	$63,478,384
EQIX	Equinix Inc	72,819	$55,791,005
PFG	Principal Financial Group Inc	608,926	$53,713,362
GILD	Gilead Sciences, Inc.	342,666	$42,058,824
ITW	Illinois Tool Works Inc	163,266	$40,212,415
NKE	NIKE, Inc.	589,046	$37,528,120
WBD	Warner Bros. Discovery, Inc.	1,296,257	$37,358,126
ACN	Accenture plc	131,162	$35,190,764
CMCSA	Comcast Corp	1,135,875	$33,951,278
ARES	Ares Management Corp	202,328	$32,702,274
DVN	Devon Energy Corp/De	857,232	$31,400,408
NGD	New Gold Inc. /FI	3,116,057	$27,140,856
MLM	Martin Marietta Materials Inc	41,668	$25,944,996
GOOGL	Alphabet Inc.	80,246	$25,116,998
APD	Air Products & Chemicals, Inc.	101,001	$24,949,267
PG	PROCTER & GAMBLE Co	168,235	$24,109,757
MSFT	Microsoft Corp	49,215	$23,801,358
CTVA	Corteva, Inc.	354,178	$23,740,551
SUNC	SunocoCorp LLC	466,440	$22,986,163
JNJ	Johnson & Johnson	102,067	$21,122,765
PLD	Prologis, Inc.	160,676	$20,511,898
SW	Smurfit Westrock plc	526,730	$20,368,649
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

408 tracked positions · $4,328,553,315 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 408 positions by value · page 1 of 9

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp PUT + SHARES Technology	Added	6,671,569	+29,275	$1,163,521,633	−6.1%	26.88%
MSTR	Strategy Inc PUT + SHARES Technology	Reduced	1,638,602	-1,468,318	$204,497,529	−56.7%	4.72%
PSLV	Sprott Physical Silver Trust Financial Services	NEW	8,190,370	NEW	$199,763,124	NEW	4.62%
TBPH	Theravance Biopharma, Inc. Healthcare	Held	7,457,060	0	$121,028,083	−13.3%	2.80%
HOLX	HOLOGIC INC Healthcare	NEW	1,230,436	NEW	$93,008,657	NEW	2.15%
IBIT	iShares Bitcoin Trust ETF	Reduced	2,280,228	-5,521,755	$87,606,359	−77.4%	2.02%
BMNR	Bitmine Immersion Technologies, Inc. Financial Services	Added	4,328,294	+3,394,677	$85,613,655	+237.8%	1.98%
CEF	Sprott Physical Gold & Silver Trust Financial Services	NEW	1,739,500	NEW	$83,008,940	NEW	1.92%
FOLD	AMICUS THERAPEUTICS, INC. Healthcare	Added	3,872,902	+1,980,105	$56,002,162	+107.8%	1.29%
TSLA	Tesla, Inc. Consumer Cyclical	Added	129,508	+38,162	$48,144,599	+17.2%	1.11%
SPY	Spdr S&P 500 ETF Trust PUT CALL	Added	66,500	+20,000	$43,247,610	+36.4%	1.00%
SMCI	Super Micro Computer, Inc. PUT + SHARES Technology	Added	1,896,585	+898,970	$43,185,240	+47.9%	1.00%
LMT	Lockheed Martin Corp Industrials	NEW	61,616	NEW	$37,240,094	NEW	0.86%
OVV	Ovintiv Inc. Energy	NEW	596,820	NEW	$35,427,235	NEW	0.82%
AIV	Apartment Investment & Management Co Real Estate	Added	8,150,456	+6,900,456	$33,172,355	+346.8%	0.77%
KMB	Kimberly Clark Corp Consumer Defensive	NEW	342,607	NEW	$33,051,297	NEW	0.76%
MU	Micron Technology Inc Technology	Added	95,004	+66,403	$32,096,151	+293.2%	0.74%
MLTX	MoonLake Immunotherapeutics Healthcare	Added	1,708,328	+1,375,367	$31,843,233	+625.6%	0.74%
VG	Venture Global, Inc. PUT + SHARES Energy	Added	1,816,360	+198,960	$28,625,833	+159.5%	0.66%
SPG	Simon Property Group Inc. Real Estate	NEW	151,181	NEW	$28,199,791	NEW	0.65%
APLS	Apellis Pharmaceuticals, Inc. Healthcare	NEW	700,000	NEW	$28,161,000	NEW	0.65%
KKR	KKR & Co. Inc. Financial Services	NEW	291,505	NEW	$26,964,212	NEW	0.62%
MMM	3M Co Industrials	NEW	185,404	NEW	$26,926,222	NEW	0.62%
CLBT	Cellebrite DI Ltd. Technology	Added	1,899,841	+1,846,851	$26,179,808	+2640.2%	0.60%
VLO	Valero Energy Corp/Tx Energy	NEW	105,816	NEW	$26,145,017	NEW	0.60%
ANET	Arista Networks, Inc. Technology	Added	206,200	+196,680	$25,317,236	+1929.6%	0.58%
CNC	Centene Corp Healthcare	Reduced	738,965	-100,070	$24,193,714	−29.9%	0.56%
ALMS	Alumis Inc. Healthcare	NEW	1,097,417	NEW	$24,176,096	NEW	0.56%
HPE	Hewlett Packard Enterprise Co Technology	NEW	1,004,400	NEW	$23,914,764	NEW	0.55%
HUT	Hut 8 Corp. Financial Services	Reduced	472,186	-164,160	$22,150,245	−24.2%	0.51%
NNE	Nano Nuclear Energy Inc. Industrials	Reduced	1,052,756	-539,262	$21,560,442	−43.6%	0.50%
ENPH	Enphase Energy, Inc. PUT + SHARES Technology	Reduced	562,401	-108,848	$21,264,381	−1.2%	0.49%
HAL	Halliburton Co Energy	NEW	538,940	NEW	$21,013,270	NEW	0.49%
IREN	IREN Ltd Financial Services	Added	605,619	+517,423	$20,760,619	+523.2%	0.48%
TAP-A	Molson Coors Beverage Co Consumer Defensive	NEW	472,592	NEW	$20,349,811	NEW	0.47%
CNTA	Centessa Pharmaceuticals plc Healthcare	NEW	510,407	NEW	$20,273,366	NEW	0.47%
HOOD	Robinhood Markets, Inc. Financial Services	NEW	290,987	NEW	$20,165,399	NEW	0.47%
CSGP	Costar Group, Inc. Real Estate	Added	497,500	+463,180	$20,069,150	+769.7%	0.46%
MASI	Masimo Corp Healthcare	NEW	112,600	NEW	$20,028,162	NEW	0.46%
CWAN	Clearwater Analytics Holdings, Inc. Technology	NEW	843,439	NEW	$19,947,332	NEW	0.46%
CINF	Cincinnati Financial Corp Financial Services	NEW	125,354	NEW	$19,724,451	NEW	0.46%
SBET	Sharplink, Inc. Financial Services	Added	3,042,548	+488,247	$19,624,434	−14.1%	0.45%
PAAS	Pan American Silver Corp Basic Materials	Added	342,503	+285,203	$18,710,938	+530.3%	0.43%
P	Everpure, Inc. Technology	NEW	316,600	NEW	$18,692,064	NEW	0.43%
AAUC	Allied Gold Corp Basic Materials	NEW	592,425	NEW	$18,388,872	NEW	0.42%
AMBP	Ardagh Metal Packaging S.A. Consumer Cyclical	Added	4,516,338	+4,476,638	$18,291,168	+11137.4%	0.42%
ALB	Albemarle Corp PUT Basic Materials	Added	100,000	+28,652	$17,953,000	+77.9%	0.41%
NWAX	New America Acquisition I Corp. Financial Services	NEW	1,767,280	NEW	$17,690,472	NEW	0.41%
SRE	Sempra Utilities	Added	178,510	+162,949	$17,345,816	+1162.5%	0.40%
CAN	Canaan Inc. Technology	Reduced	39,871,384	-3,434,266	$17,224,437	−42.4%	0.40%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.