Weiss Asset Management LP
Follow13F filer, CIK 1357550, BOSTON, MA
Weiss Asset Management LP reported $7,575,524,525 across 566 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-17. Its ten largest share positions make up 40.11% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001357550-26-000011
- Period
- 2025-12-31
- Reported value
- $7.58B
- Holdings
- 566
- Top 10 weight
- 40.11%
- New
- 340
- Sold out
- 371
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| RNAMnew | +2,161,093 | $156M |
| NVDAadded | +793,701 | $148M |
| AVADEL PHARMACEUTICALSnew | +4,515,114 | $97.3M |
| ADPnew | +320,605 | $82.5M |
| KVUEadded | +4,590,923 | $79.2M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Largest sells vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| Kexited | -3,153,422 | -$259M |
| TSLAreduced | -407,909 | -$183M |
| ETHAreduced | -5,813,764 | -$130M |
| IBITreduced | -2,256,670 | -$112M |
| COINreduced | -400,538 | -$90.6M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Holdings, Q4 2025
Share positions as resolved from 13F-HR 0001357550-26-000011, largest first. % of portfolio is the value over $7,053,284,644, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|---|---|---|---|---|---|---|
| DCHDAUCH CORP | 11,989 | $76.8K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| LATAWGALATA ACQUISITION CORP II | 193,928 | $72.7K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| RACWSRITHM ACQUISITION CORP | 120,646 | $72.4K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| RVMDWREVOLUTION MEDICINES INC | 73,640 | $69.2K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| SBCWWSBC MED GROUP HLDGS INC | 229,192 | $52.6K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| BLZRWTRAILBLAZER ACQUISITION CORP | 98,860 | $47.5K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| NHICWNEWHOLD INVT CORP III | 110,050 | $46.2K | <0.01% | -29,255 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| OACCWOAKTREE ACQUISITION CORP III | 64,860 | $46.1K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| CCIIWCOHEN CIRCLE ACQUISIT CORP I | 55,544 | $39.4K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| RTACWRENATUS TACTICAL ACQUIS | 45,881 | $37.3K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| HCMAWHCM III ACQUISITION CORP | 60,391 | $28.7K | <0.01% | -72,840 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| DNMXWDYNAMIX CORP III | 76,300 | $26.3K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| ALDFWALDEL FINL II INC | 51,194 | $21K | <0.01% | -220,443 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| BTMWQBITCOIN DEPOT INC | 175,385 | $19.7K | <0.01% | -144,179 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| CORZCORE SCIENTIFIC INC NEW | 1,081 | $15.7K | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| TALKWTALKSPACE INC | 1,000,000 | $15K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| CPTWFCAPTIVISION INC | 295,892 | $3.85K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| ORGNWORIGIN MATERIALS INC | 888,494 | $3.46K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| NIONIO INC | 595 | $3.03K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| DISTOKEN ACQUISITION CORPDISTOKEN ACQUISITION CORP | 123,504 | $1.47K | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | ||
| SWVLWSWVL HOLDINGS CORP | 131,100 | $996 | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| CSWCCAPITAL SOUTHWEST CORP | 44 | $975 | <0.01% | new | The filing omitted confidential holdings, a later amendment may add them. | Timeline | |
| MPTMEDICAL PROPERTIES TRUST INC | 1 | $5 | <0.01% | 0 | The filing omitted confidential holdings, a later amendment may add them. | Timeline |
Options
Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| MSTRSTRATEGY INC Stock | put | 2,121,200 | $322M | -1,084,000 |
| MPTMEDICAL PROPERTIES TRUST INC REIT | put | 7,948,400 | $39.7M | -106,200 |
| SPYSTATE STR SPDR S&P 500 ETF T SHS | put | 46,500 | $31.7M | 0 |
| GOOGLALPHABET INC COM | put | 70,000 | $21.9M | new |
| METAMETA PLATFORMS INC COM | put | 30,000 | $19.8M | new |
| ENPHENPHASE ENERGY INC Stock | put | 500,000 | $16M | -500,000 |
| MSFTMICROSOFT CORP COM | put | 30,000 | $14.5M | new |
| AALAMERICAN AIRLINES GROUP INC Stock | put | 771,700 | $11.8M | -3,658,700 |
| VGVENTURE GLOBAL INC COM CL A | put | 1,617,400 | $11M | new |
| ETHAISHARES ETHEREUM TR COM | put | 490,000 | $11M | -2,000,000 |
| VZVERIZON COMMUNICATIONS INC COM | put | 200,000 | $8.15M | new |
| SOCSABLE OFFSHORE CORP COM SHS | put | 700,000 | $6.31M | 0 |
| NIONIO INC ADR | put | 1,000,000 | $5.1M | 0 |
| IQIQIYI INC ADR | put | 809,600 | $1.55M | 0 |
| FUBOFUBOTV INC COM | put | 500,000 | $1.26M | 0 |
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| INTERDIGITAL INCINTERDIGITAL INC NOTE 3.500% 6/0 | principal | 59,897,000 | $247M | -165,000 |
| STRATEGY INCSTRATEGY INC NOTE 0.625% 9/1 | principal | 149,213,000 | $175M | +53,955,000 |
| EXACT SCIENCES CORPEXACT SCIENCES CORP NOTE 0.375% 3/1 | principal | 129,000,000 | $135M | new |
| SUPER MICRO COMPUTER INCSUPER MICRO COMPUTER INC NOTE 3.500% 3/0 | principal | 111,079,000 | $99.4M | -26,500,000 |
| BRIDGEBIO PHARMA INCBRIDGEBIO PHARMA INC NOTE 2.500% 3/1 | principal | 50,624,000 | $95.6M | -17,000,000 |
| UGI CORP NEWUGI CORP NEW NOTE 5.000% 6/0 | principal | 60,390,000 | $85.6M | new |
| GUESS INCGUESS INC BOND | principal | 84,105,000 | $83.6M | +10,000,000 |
| SUNRUN INCSUNRUN INC NOTE 4.000% 3/0 | principal | 56,977,000 | $80.8M | -16,981,000 |
| GREENBRIER COS INCGREENBRIER COS INC NOTE 2.875% 4/1 | principal | 52,930,000 | $57.3M | +30,350,000 |
| ORMAT TECHNOLOGIES INCORMAT TECHNOLOGIES INC NOTE 2.500% 7/1 | principal | 42,350,000 | $57.2M | 0 |
| WEIBO CORPWEIBO CORP CNV | principal | 47,043,000 | $54.6M | -15,000,000 |
| ETSY INCETSY INC NOTE 0.125% 9/0 | principal | 53,010,000 | $49.2M | +14,613,000 |
| STRATEGY INCSTRATEGY INC NOTE12/0 | principal | 50,862,000 | $41.9M | new |
| NIO INCNIO INC NOTE 3.875%10/1 | principal | 28,642,000 | $27.6M | -14,000,000 |
| STRATEGY INCSTRATEGY INC NOTE 0.625% 3/1 | principal | 20,000,000 | $25.4M | new |
| FLUOR CORPFLUOR CORP NOTE 1.125% 8/1 | principal | 19,321,000 | $22.1M | new |
| NUTANIX INCNUTANIX INC NOTE 0.500%12/1 | principal | 16,189,000 | $15.6M | new |
| AEROVIRONMENT INCAEROVIRONMENT INC NOTE 7/1 | principal | 10,000,000 | $10.9M | -2,500,000 |
| TETRA TECH INC NEWTETRA TECH INC NEW DBCV 2.250% 8/1 | principal | 10,000,000 | $10.9M | new |
| KOSMOS ENERGY LTDKOSMOS ENERGY LTD NOTE 3.125% 3/1 | principal | 23,100,000 | $9.97M | 0 |
| ENVISTA HOLDINGS CORPORATIONENVISTA HOLDINGS CORPORATION NOTE 1.750% 8/1 | principal | 10,000,000 | $9.62M | new |
| LITHIUM ARGENTINA AGLITHIUM ARGENTINA AG NOTE 1.750% 1/1 | principal | 10,000,000 | $9.09M | -5,625,000 |
| HERBALIFE LTDHERBALIFE LTD NOTE 4.250% 6/1 | principal | 5,720,000 | $6.22M | new |
| FRESHPET INCFRESHPET INC NOTE 3.000% 4/0 | principal | 5,000,000 | $5.85M | new |
| CLEANSPARK INCCLEANSPARK INC NOTE 6/1 | principal | 5,000,000 | $5.19M | new |
| Dynavax Technologies CorpDynavax Technologies Corp Convertible bond | principal | 4,000,000 | $4.17M | new |
| ITRON INCITRON INC NOTE 1.375% 7/1 | principal | 2,500,000 | $2.53M | new |
| CAPITAL SOUTHWEST CORPCAPITAL SOUTHWEST CORP Convertible Bond | principal | 1,466,000 | $1.46M | -4,968,000 |
Sold out in Q4 2025
Positions in the previous quarter's report that this quarter's report no longer lists.
The largest 100 of 371. All 371
| Security | Shares before | Value before | Type |
|---|---|---|---|
| KKELLANOVA | 3,153,422 | $259M | shares |
| NVDANVIDIA CORPORATION | 1,000,000 | $187M | put |
| IBITISHARES BITCOIN TRUST ETF | 2,200,000 | $143M | put |
| IONIS PHARMACEUTICALS INIONIS PHARMACEUTICALS IN | 107,295,000 | $132M | principal |
| COPCONOCOPHILLIPS | 456,981 | $43.2M | shares |
| BRK-BBERKSHIRE HATHAWAY INC DEL | 83,748 | $42.1M | shares |
| AVGOBROADCOM INC | 100,000 | $33M | put |
| SPGIS&P GLOBAL INC | 60,589 | $29.5M | shares |
| WEC ENERGY GROUP INCWEC ENERGY GROUP INC | 23,410,000 | $28.1M | principal |
| ZEEKR INTELLIGENT TECHNOLOGYZEEKR INTELLIGENT TECHNOLOGY | 915,383 | $27.9M | shares |
| AKROAKERO THERAPEUTICS INC | 486,000 | $23.1M | shares |
| 89BIO INC89BIO INC | 1,400,000 | $20.6M | shares |
| STRIVE INCSTRIVE INC | 7,782,407 | $19.5M | shares |
| IRINGERSOLL RAND INC | 229,418 | $19M | shares |
| VSTVISTRA CORP | 91,957 | $18M | shares |
| LSCCLATTICE SEMICONDUCTOR CORP | 235,642 | $17.3M | shares |
| ABTABBOTT LABORATORIES | 128,533 | $17.2M | shares |
| FEFIRSTENERGY CORP | 361,852 | $16.6M | shares |
| SCPHARMACEUTICALS INCSCPHARMACEUTICALS INC | 2,881,669 | $16.3M | shares |
| RPRXROYALTY PHARMA PLC | 457,470 | $16.1M | shares |
| AEMAGNICO EAGLE MINES LTD | 93,561 | $15.8M | shares |
| ADSKAUTODESK INC | 47,179 | $15M | shares |
| DISDISNEY WALT CO | 123,040 | $14.1M | shares |
| INVAINNOVIVA INC | 768,935 | $14M | shares |
| MKSIMKS INC. | 111,075 | $13.7M | shares |
| MERUS N VMERUS N V | 144,902 | $13.6M | shares |
| NRGNRG ENERGY INC | 77,495 | $12.6M | shares |
| WPMWHEATON PRECIOUS METALS CORP | 111,957 | $12.5M | shares |
| BBARRICK MNG CORP | 368,832 | $12.1M | shares |
| OREALTY INCOME CORP | 194,172 | $11.8M | shares |
| PEVERPURE INC | 136,323 | $11.4M | shares |
| CCLCARNIVAL CORP | 389,422 | $11.3M | shares |
| BCSSUBAIN CAP GSS INVT CORP | 1,100,000 | $11.1M | shares |
| LMTLOCKHEED MARTIN CORP | 21,021 | $10.5M | shares |
| OSCROSCAR HEALTH INC | 500,000 | $9.46M | put |
| DFDVDEFI DEVELOPMENT CORP | 599,997 | $9.19M | shares |
| MIDDMIDDLEBY CORP | 67,616 | $8.99M | shares |
| HSICSCHEIN HENRY INC | 123,336 | $8.19M | shares |
| BRKRBRUKER CORP | 246,228 | $8M | shares |
| JKHYHENRY JACK & ASSOC INC | 50,580 | $7.53M | shares |
| TJXTJX COS INC NEW | 51,765 | $7.48M | shares |
| COFCAPITAL ONE FINL CORP | 35,133 | $7.47M | shares |
| CIPHER DIGITAL INCCIPHER DIGITAL INC | 2,500,000 | $7.42M | principal |
| KLACKLA CORP | 6,520 | $7.03M | shares |
| TYLTYLER TECHNOLOGIES INC | 13,245 | $6.93M | shares |
| Surmodics IncSurmodics Inc | 213,221 | $6.37M | shares |
| LENLENNAR CORP | 49,739 | $6.27M | shares |
| SUISUN CMNTYS INC | 48,444 | $6.25M | shares |
| JPMJPMORGAN CHASE & CO | 19,757 | $6.23M | shares |
| BITFBITFARMS LTD | 2,161,238 | $6.09M | shares |
| TRVTRAVELERS COMPANIES INC | 21,690 | $6.06M | shares |
| MKTXMARKETAXESS HLDGS INC | 34,404 | $5.99M | shares |
| ETSYETSY INC | 89,663 | $5.95M | shares |
| MOALTRIA GROUP INC | 89,958 | $5.94M | shares |
| ZETAZETA GLOBAL HOLDINGS CORP | 295,780 | $5.88M | shares |
| GLPIGAMING & LEISURE P | 124,519 | $5.8M | shares |
| NWSNEWS CORP NEW | 167,550 | $5.79M | shares |
| CBCHUBB LIMITED | 20,400 | $5.76M | shares |
| THGHANOVER INS GROUP INC | 31,407 | $5.7M | shares |
| CSG SYS INTL INCCSG SYS INTL INC | 5,000,000 | $5.59M | principal |
| ONTOONTO INNOVATION INC | 42,907 | $5.54M | shares |
| JXNJACKSON FINANCIAL INC | 52,979 | $5.36M | shares |
| INVHINVITATION HOMES INC | 182,362 | $5.35M | shares |
| HAEHAEMONETICS CORP MASS | 107,663 | $5.25M | shares |
| MSMORGAN STANLEY | 31,136 | $4.95M | shares |
| QSRRESTAURANT BRANDS INTL INC | 74,961 | $4.81M | shares |
| BEKEKE HLDGS INC | 247,062 | $4.69M | shares |
| INSPINSPIRE MED SYS INC | 63,029 | $4.68M | shares |
| AEXAAMERICAN EXCEPTIONALISM ACQU | 426,533 | $4.66M | shares |
| CPRTCOPART INC | 97,710 | $4.39M | shares |
| AFRMAFFIRM HLDGS INC | 58,376 | $4.27M | shares |
| FFIVF5 INC | 12,579 | $4.07M | shares |
| FOXFOX CORP | 68,789 | $3.94M | shares |
| CCRNCROSS CTRY HEALTHCARE INC | 277,227 | $3.94M | shares |
| IGFISHARES TR | 64,210 | $3.92M | shares |
| DECKDECKERS OUTDOOR CORP | 38,339 | $3.89M | shares |
| ROKUROKU INC | 38,146 | $3.82M | shares |
| TDYTELEDYNE TECHNOLOGIES INC | 6,391 | $3.75M | shares |
| PRUPRUDENTIAL FINL INC | 35,978 | $3.73M | shares |
| BHVNBIOHAVEN LTD | 242,119 | $3.63M | shares |
| RIOTRIOT PLATFORMS INC | 185,452 | $3.53M | shares |
| CYTKCYTOKINETICS INC | 64,163 | $3.53M | shares |
| TAPMOLSON COORS BEVERAGE CO | 74,970 | $3.39M | shares |
| BMYBRISTOL-MYERS SQUIBB CO | 73,479 | $3.31M | shares |
| DVADAVITA INC | 24,740 | $3.29M | shares |
| PPCPILGRIMS PRIDE CORP | 79,036 | $3.22M | shares |
| AMZNAMAZON COM INC | 14,509 | $3.19M | shares |
| VNOVORNADO RLTY TR | 77,324 | $3.13M | shares |
| CPBTHE CAMPBELLS COMPANY | 98,448 | $3.11M | shares |
| GMEDGLOBUS MED INC | 53,760 | $3.08M | shares |
| VZVERIZON COMMUNICATIONS INC | 68,933 | $3.03M | shares |
| FUBOTV INCFUBOTV INC | 3,000,000 | $2.97M | principal |
| OLEDUNIVERSAL DISPLAY CORP | 20,528 | $2.95M | shares |
| COHUCOHU INC | 144,913 | $2.95M | shares |
| PBFPBF ENERGY INC | 96,394 | $2.91M | shares |
| SHOPSHOPIFY INC | 19,482 | $2.89M | shares |
| FISVFISERV INC | 22,252 | $2.87M | shares |
| ILMNILLUMINA INC | 29,808 | $2.83M | shares |
| XYZBLOCK INC | 39,090 | $2.83M | shares |
| BLSHBULLISH | 44,314 | $2.82M | shares |
How Q4 2025 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0001357550-26-000011 | base | 2026-02-17 | acceptance time not in the bulk data set | ||
| 13F-HR/A 0001357550-26-000022 | added | new holdings | 2026-05-15 | acceptance time not in the bulk data set |