Weiss Asset Management LP

Registered adviser

CIK

1357550

Location

BOSTON, MA

Portfolio Value

Mid $6,816,221,807

Diversification

Diversified

Reports for

WEISS ANDREW M BIP GP LLC

Filing Date

Global Rank

#703 / 8,817 ▲ 190

Top Industry

Semiconductors 38.3%

Period ended 4 months ago

Filed Aug 14, 2026 · 2mo

26 quarters · since Mar 2020

Confidential Treatment — This manager has requested confidential treatment for one or more investments in the most recent 13F filing. The portfolio shown may be incomplete.

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 155564

Roster of Oct 1, 2026

Regulatory AUM

$15,557,388,898

Main clients

Pooled investment vehicles (100% of AUM)

Private funds

2 funds · Hedge funds

Focus by gross assets, Schedule D of Dec 5, 2024

$15,557,388,898 gross assets

LEI

IT8LF3P4X72T709F5Z71

Private funds on Schedule D 7.B.(1)

As filed Dec 5, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$6,661,556,318 gross assets in 3 funds Hedge funds $6,661,556,318 (3)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$15,557,388,898	Pooled investment vehicles (100%)
Apr 2025 to Mar 2026	$10,725,854,987	Pooled investment vehicles (100%)
Apr 2024 to Mar 2025	$6,721,215,982	Pooled investment vehicles (99%)
May 2023 to Mar 2024	$5,769,667,463	Pooled investment vehicles (99%)
Apr 2023	$5,769,667,463	Pooled investment vehicles (99%)
Apr 2022 to Mar 2023	$7,985,756,006	Pooled investment vehicles (99%)

3 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Diversified active

Top 10 weight 48.5%, 18.4 effective positions, active share 79.5% against the Russell 1000 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

High turnover

170.9% over the last four quarters (100%+)

Horizon

Short horizon

Value-weighted holding period 3.5 quarters (under 4)

Closest benchmark: the Russell 1000 as of 2026-06-30, active share 79.5%; sector active share 21.4% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

566 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

18.4%

−9.5 pts

Top 5

44.2%

+1.7 pts

Top 10

51.8%

+1.9 pts

HHI

630

Diversified−237

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	51.7%	$3,526,052,127	119
Financial Services	11.5%	$781,129,782	98
Industrials	9.1%	$621,062,622	88
Healthcare	8.0%	$545,619,464	65
Consumer Cyclical	5.2%	$352,490,307	46
Unclassified	4.7%	$321,362,028	12
Utilities	2.4%	$160,760,027	14
Energy	1.9%	$131,637,165	26
Basic Materials	1.9%	$126,817,043	20
Real Estate	1.7%	$115,663,014	28
Consumer Defensive	1.2%	$81,009,221	24
Communication Services	0.8%	$52,619,007	26

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
CDE	Coeur Mining, Inc.	+1,428,023	1,679,674	$27,412,279
CEF	Sprott Physical Gold & Silver Trust	+1,360,216	3,099,716	$124,701,574
PHYS	Sprott Physical Gold Trust	+1,127,546	1,611,647	$48,623,389
MLTX	MoonLake Immunotherapeutics	+873,485	2,581,813	$50,267,899
HOOD	Robinhood Markets, Inc.	+799,699	1,090,686	$109,373,992
MU	Micron Technology Inc	+648,765	743,769	$858,525,119
ZIM	ZIM Integrated Shipping Services Ltd.	+511,388	787,799	$20,482,774
SOC	Sable Offshore Corp.	+393,450	721,645	$2,222,666
CORZ	Core Scientific, Inc.	+378,905	936,495	$23,964,907
HL	Hecla Mining Co	+358,836	816,856	$12,604,088
TSLA	Tesla, Inc.	+325,983	455,491	$191,579,514
AR	ANTERO RESOURCES Corp	+298,051	362,051	$12,722,472
CVX	Chevron Corp	+266,607	271,962	$45,080,421
SWX	Southwest Gas Holdings, Inc.	+259,127	283,242	$25,117,900
TTD	Trade Desk, Inc.	+250,940	268,460	$4,853,756
TXNM	Txnm Energy Inc	+246,108	411,513	$23,365,708
PRVA	Privia Health Group, Inc.	+227,064	253,964	$6,534,493
—		+217,060	225,085	$11,693,165
MRT	Marti Technologies, Inc.	+181,499	308,905	$404,665
ACGL	Arch Capital Group Ltd.	+159,179	201,479	$19,555,551
IONQ	IonQ, Inc.	+154,174	177,160	$9,435,541
NATL	NCR Atleos Corp	+99,278	127,758	$5,545,974
ASB	Associated Banc-Corp	+86,095	149,595	$4,603,038
GD	General Dynamics Corp	+75,420	77,814	$27,564,831
CRM	Salesforce, Inc.	+67,162	68,422	$10,718,990
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
PSLV	Sprott Physical Silver Trust	−5,388,581	2,801,789	$52,869,758
DEFT	Defi Technologies, Inc.	−1,876,133	6,167,295	$3,169,989
SMCI	Super Micro Computer, Inc.	−1,255,370	141,215	$4,141,835
BMNR	Bitmine Immersion Technologies, Inc.	−1,185,567	3,142,727	$41,829,696
CAN	Canaan Inc.	−971,102	38,900,282	$11,164,380
IBIT	iShares Bitcoin Trust ETF	−879,811	1,400,417	$46,619,881
CBUS	Cibus, Inc.	−872,037	16,087	$22,039
USAR	USA Rare Earth, Inc.	−860,520	269,480	$5,815,378
RZLV	Rezolve Ai PLC	−837,760	1,162,240	$3,661,056
ALMS	Alumis Inc.	−786,046	311,371	$8,761,979
SBET	Sharplink, Inc.	−729,327	2,313,221	$11,103,460
HAL	Halliburton Co	−518,888	20,052	$680,765
AES	Aes Corp	−457,302	246,240	$3,609,878
VICI	Vici Properties Inc.	−424,872	8,806	$233,799
CNC	Centene Corp	−423,959	315,006	$20,220,235
KMB	Kimberly Clark Corp	−340,586	2,021	$221,845
VFC	V F Corp	−330,772	13,128	$218,975
GETY	Getty Images Holdings, Inc.	−321,118	541,917	$466,048
NVDA	Nvidia Corp	−318,084	5,263,485	$1,053,170,713
SLMT	Brera Holdings PLC	−258,301	32,230	$163,083
AMKR	Amkor Technology, Inc.	−242,280	57,720	$4,977,195
SYF	Synchrony Financial	−234,121	9,365	$712,208
P	Everpure, Inc.	−201,363	115,237	$9,079,523
PPLC	PPL Corp	−200,000	730,000	$35,821,100
ANET	Arista Networks, Inc.	−195,414	10,786	$1,832,325
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
SMCIP	Super Micro Computer, Inc.	4,850,000	$252,006,000
XOVR	EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF	5,097,483	$107,302,017
ROIV	Roivant Sciences Ltd.	2,542,652	$89,984,454
SPCX	Space Exploration Technologies Corp	503,225	$85,981,023
MRVL	Marvell Technology, Inc.	286,219	$85,261,777
—		225,000	$79,769,250
UAL	United Airlines Holdings, Inc.	425,223	$57,826,075
MCHPP	Microchip Technology Inc	600,000	$46,026,000
QXO	QXO, Inc.	1,999,356	$34,548,871
—		415,000	$34,474,050
CEG	Constellation Energy Corp	124,008	$30,799,866
BRK-B	Berkshire Hathaway Inc	58,646	$29,345,871
RONB	Baron First Principles ETF	1,087,386	$26,532,218
SARO	StandardAero, Inc.	866,740	$25,924,193
IJR	iShares Core S&P Small-Cap ETF	171,653	$25,457,856
VIAV	Viavi Solutions Inc.	501,507	$23,946,959
BBIO	BridgeBio Pharma, Inc.	320,184	$23,847,304
AAOI	Applied Optoelectronics, Inc.	151,868	$22,500,762
CBRS	Cerebras Systems Inc.	96,780	$21,388,380
LTH	Life Time Group Holdings, Inc.	521,782	$21,309,576
TGTX	Tg Therapeutics, Inc.	375,082	$20,607,005
SMTC	Semtech Corp	125,430	$20,300,845
AXSM	Axsome Therapeutics, Inc.	80,000	$19,581,600
ACLS	Axcelis Technologies Inc	103,258	$19,562,228
BSOL	Bitwise Solana Staking ETF	1,846,208	$18,480,542
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
LMT	Lockheed Martin Corp	61,616	$37,240,094
OVV	Ovintiv Inc.	596,820	$35,427,235
NVRI	Enviri Corp	1,402,465	$27,516,363
HPE	Hewlett Packard Enterprise Co	1,004,400	$23,914,764
HUT	Hut 8 Corp.	472,186	$22,150,245
NNE	Nano Nuclear Energy Inc.	1,052,756	$21,560,442
TAP	Molson Coors Beverage Co	472,592	$20,349,811
CSGP	Costar Group, Inc.	497,500	$20,069,150
PAAS	Pan American Silver Corp	342,503	$18,710,938
AAUC	Allied Gold Corp	592,425	$18,388,872
AMBP	Ardagh Metal Packaging S.A.	4,516,338	$18,291,168
SRE	Sempra	178,510	$17,345,816
FRMI	Fermi Inc.	2,415,027	$14,103,757
NEU	Newmarket Corp	21,001	$13,460,590
COGT	Cogent Biosciences, Inc.	346,104	$13,321,542
BAH	Booz Allen Hamilton Holding Corp	165,900	$12,945,177
AFL	Aflac Inc	110,685	$12,143,251
AAPL	Apple Inc.	46,140	$11,709,870
VLTO	Veralto Corp	130,621	$11,549,508
SPGI	S&P Global Inc.	26,904	$11,443,346
COP	Conocophillips	84,300	$11,127,600
BTSGU	BrightSpring Health Services, Inc.	75,553	$10,731,548
INFY	Infosys Ltd	792,598	$10,707,998
PLTR	Palantir Technologies Inc.	65,400	$9,566,712
MDLN	Medline Inc.	213,178	$9,486,421
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

566 tracked positions · $6,816,221,807 total · filing declares 624 positions · $9,541,753,171 · as of Jun 30, 2026

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

Showing 1–50 of 566 positions by value · page 1 of 12

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
NVDA	Nvidia Corp PUT + SHARES Technology	Reduced	6,263,485	-408,084	$1,253,260,713	+7.7%	8	$133.20	18.39%
MU	Micron Technology Inc PUT + SHARES Technology	Added	848,769	+753,765	$979,725,569	+2952.5%	4	$694.00	14.37%
SMCIP	Super Micro Computer, Inc. Technology	NEW	4,850,000	NEW	$252,006,000	NEW	1	unpriced	3.70%
SMCI	Super Micro Computer, Inc. PUT + SHARES Technology	Added	7,187,615	+5,291,030	$210,812,747	+388.2%	6	$35.88	3.09%
TSLA	Tesla, Inc. Consumer Cyclical	Added	455,491	+325,983	$191,579,514	+297.9%	6	$388.56	2.81%
		Held	7,457,060	0	$126,770,020	+4.7%	19	$9.29	1.86%
CEF	Sprott Physical Gold & Silver Trust Financial Services	Added	3,099,716	+1,360,216	$124,701,574	+50.2%	2	$49.21	1.83%
HOOD	Robinhood Markets, Inc. Financial Services	Added	1,090,686	+799,699	$109,373,992	+442.4%	2	$84.81	1.60%
XOVR	EntrepreneurShares Series Trust ERShares Private-Public Crossover ETF	NEW	5,097,483	NEW	$107,302,017	NEW	1	$19.10	1.57%
ROIV	Roivant Sciences Ltd. Healthcare	NEW	2,542,652	NEW	$89,984,454	NEW	1	$29.55	1.32%
SPCX	Space Exploration Technologies Corp Industrials	NEW	503,225	NEW	$85,981,023	NEW	1	unpriced	1.26%
MRVL	Marvell Technology, Inc. Technology	NEW	286,219	NEW	$85,261,777	NEW	1	$200.51	1.25%
		NEW	225,000	NEW	$79,769,250	NEW	1	unpriced	1.17%
MSTR	Strategy Inc PUT + SHARES Technology	Reduced	829,895	-808,707	$72,142,772	−64.7%	7	$337.68	1.06%
UAL	United Airlines Holdings, Inc. Industrials	NEW	425,223	NEW	$57,826,075	NEW	1	$103.58	0.85%
IBIT	iShares Bitcoin Trust ETF CALL + SHARES	Reduced	1,600,417	-679,811	$53,277,881	−39.2%	7	$56.82	0.78%
PSLV	Sprott Physical Silver Trust Financial Services	Reduced	2,801,789	-5,388,581	$52,869,758	−73.5%	2	$27.29	0.78%
MLTX	MoonLake Immunotherapeutics Healthcare	Added	2,581,813	+873,485	$50,267,899	+57.9%	3	$16.48	0.74%
PHYS	Sprott Physical Gold Trust Financial Services	Added	1,611,647	+1,127,546	$48,623,389	+183.4%	2	$34.98	0.71%
MCHPP	Microchip Technology Inc Technology	NEW	600,000	NEW	$46,026,000	NEW	1	$75.88	0.68%
CVX	Chevron Corp Energy	Added	271,962	+266,607	$45,080,421	+3968.8%	2	$186.05	0.66%
BMNR	Bitmine Immersion Technologies, Inc. Financial Services	Reduced	3,142,727	-1,185,567	$41,829,696	−51.1%	3	$27.22	0.61%
PPLC	PPL Corp Utilities	Reduced	730,000	-200,000	$35,821,100	−24.9%	2	$50.87	0.53%
SPY	Spdr S&P 500 ETF Trust PUT + SHARES	Reduced	47,783	-18,717	$35,682,910	−17.5%	1	$725.01	0.52%
QXO	QXO, Inc. Industrials	NEW	1,999,356	NEW	$34,548,871	NEW	1	$18.61	0.51%
		NEW	415,000	NEW	$34,474,050	NEW	1	$83.52	0.51%
KKR	KKR & Co. Inc. Financial Services	Added	343,941	+52,436	$31,566,904	+17.1%	2	$104.12	0.46%
CEG	Constellation Energy Corp Utilities	NEW	124,008	NEW	$30,799,866	NEW	1	$281.62	0.45%
IREN	IREN Ltd Financial Services	Added	652,350	+46,731	$29,831,965	+43.7%	3	$46.51	0.44%
BRK-B	Berkshire Hathaway Inc Financial Services	NEW	58,646	NEW	$29,345,871	NEW	1	$480.75	0.43%
CLBT	Cellebrite DI Ltd. Technology	Added	1,923,351	+23,510	$28,080,924	+7.3%	3	$15.13	0.41%
GD	General Dynamics Corp Industrials	Added	77,814	+75,420	$27,564,831	+3254.7%	2	$342.89	0.40%
CDE	Coeur Mining, Inc. Basic Materials	Added	1,679,674	+1,428,023	$27,412,279	+480.3%	3	$18.72	0.40%
RONB	Baron First Principles ETF	NEW	1,087,386	NEW	$26,532,218	NEW	1	$23.62	0.39%
SARO	StandardAero, Inc. Industrials	NEW	866,740	NEW	$25,924,193	NEW	1	$26.30	0.38%
IJR	iShares Core S&P Small-Cap ETF	NEW	171,653	NEW	$25,457,856	NEW	1	unpriced	0.37%
SWX	Southwest Gas Holdings, Inc. Utilities	Added	283,242	+259,127	$25,117,900	+1098.6%	2	$89.12	0.37%
AIV	Apartment Investment & Management Co Real Estate	Held	8,150,456	0	$24,206,854	−27.0%	4	$5.68	0.36%
CORZ	Core Scientific, Inc. Technology	Added	936,495	+378,905	$23,964,907	+187.3%	3	$19.68	0.35%
VIAV	Viavi Solutions Inc. Technology	NEW	501,507	NEW	$23,946,959	NEW	1	$47.91	0.35%
BBIO	BridgeBio Pharma, Inc. Healthcare	NEW	320,184	NEW	$23,847,304	NEW	1	$70.04	0.35%
TXNM	Txnm Energy Inc Utilities	Added	411,513	+246,108	$23,365,708	+141.6%	2	$58.76	0.34%
AAOI	Applied Optoelectronics, Inc. Technology	NEW	151,868	NEW	$22,500,762	NEW	1	$162.55	0.33%
CBRS	Cerebras Systems Inc. Technology	NEW	96,780	NEW	$21,388,380	NEW	1	$235.36	0.31%
LTH	Life Time Group Holdings, Inc. Consumer Cyclical	NEW	521,782	NEW	$21,309,576	NEW	1	$31.74	0.31%
TGTX	Tg Therapeutics, Inc. Healthcare	NEW	375,082	NEW	$20,607,005	NEW	1	$40.93	0.30%
ZIM	ZIM Integrated Shipping Services Ltd. Industrials	Added	787,799	+511,388	$20,482,774	+181.2%	2	$25.49	0.30%
SMTC	Semtech Corp Technology	NEW	125,430	NEW	$20,300,845	NEW	1	$130.71	0.30%
CNC	Centene Corp Healthcare	Reduced	315,006	-423,959	$20,220,235	−16.4%	4	$30.20	0.30%
AXSM	Axsome Therapeutics, Inc. Healthcare	NEW	80,000	NEW	$19,581,600	NEW	1	$216.87	0.29%

Showing the top 50 of 566 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

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.