Weiss Asset Management LP

13F Portfolio Filings

Most recent 13F
Q2 2026
Also reports for
Based on Q2 2026 13F notices
Location
Boston, MA
CIK
0001357550
All SEC filings
View on sec.gov
Holdings Value
Quarter Holdings Value ($000) Top Holdings Form Type Date Filed Filing ID
Q2 2026 624 9,541,753 NVDA, MU, STRATEGY INC, SUPER MICRO COMPUTER INC 13F-HR 8/14/2026 000135755026000029
Q1 2026 1 27,516 NVRI NEW HOLDINGS 8/14/2026 000135755026000028
Q1 2026 488 5,913,461 NVDA, STRATEGY INC, SUPER MICRO COMPUTER INC, PSLV 13F-HR 5/15/2026 000135755026000023
Q4 2025 5 432,029 RNAM, CYBR, EXAS, KVUE NEW HOLDINGS 5/15/2026 000135755026000022
Q4 2025 561 7,143,495 NVDA, IBIT, MSTR puts, INTERDIGITAL INC 13F-HR 2/17/2026 000135755026000011
Q3 2025 2 128,607 CYBR, MBC NEW HOLDINGS 5/15/2026 000135755026000021
Q3 2025 3 286,544 K, ZK NEW HOLDINGS 2/17/2026 000135755026000009
Q3 2025 593 8,252,771 NVDA, MSTR puts, IBIT, MSTR 13F-HR 11/14/2025 000135755025000038
Q2 2025 1 62,540 IPG NEW HOLDINGS 2/17/2026 000135755026000008
Q2 2025 1 67,832 AMED NEW HOLDINGS 11/14/2025 000135755025000036
Q2 2025 409 8,661,825 MSTR puts, NVDA, MSTR, NVDA puts 13F-HR 8/14/2025 000135755025000027
Q1 2025 1 39,295 OMC NEW HOLDINGS 8/14/2025 000135755025000026
Q1 2025 304 4,960,658 MSTR puts, MSTR, NVDA, SUPER MICRO COMPUTER INC 13F-HR 5/15/2025 000135755025000020
Q4 2024 13 473,083 HCP, JNPR, EDR, DFS NEW HOLDINGS 5/15/2025 000135755025000019
Q4 2024 601 4,863,961 MSTR puts, SPY puts, NRG ENERGY INC, CAMTEK LTD 13F-HR 2/14/2025 000135755025000013
Q3 2024 15 201,546 CTLT, EDR, JNPR, DFS NEW HOLDINGS 5/15/2025 000135755025000018
Q3 2024 4 43,542 HPE, SQSP, FUBO puts, KR NEW HOLDINGS 2/4/2025 000135755025000007
Q3 2024 577 4,340,844 MSTR puts, SPY puts, BRIDGEBIO PHARMA INC, NRG ENERGY INC 13F-HR 11/14/2024 000135755024000029
Q2 2024 272 2,646,806 SPY puts, NEEPRS, PERFICIENT INC, NRG ENERGY INC 13F-HR 8/14/2024 000135755024000021
Q1 2024 308 2,909,224 SPY puts, SPY, IWM puts, PXD 13F-HR 5/13/2024 000135755024000019
Q4 2023 374 2,093,573 SPY puts, SPLUNK INC, TBPH, CYTOKINETICS INC 13F-HR 2/12/2024 000135755024000015
Q3 2023 185 1,687,731 ATVI, NIMC, SPY puts, HZNP 13F-HR 11/14/2023 000135755023000072
Q2 2023 2 1,647 TSVT, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000083
Q2 2023 216 1,302,665 SPY puts, AAL puts, TBPH, IWM puts 13F-HR 8/11/2023 000135755023000068
Q1 2023 2 322 TXG, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000082
Q1 2023 330 1,562,564 OAK STR HEALTH INC, TBPH, LI AUTO INC, CHWY puts 13F-HR 5/10/2023 000135755023000064
Q4 2022 2 14,537 1LIFE HEALTHCARE INC, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000081
Q4 2022 534 2,440,835 ATLAS AIR WORLDWIDE HLDGS IN, TBPH, BILIBILI INC, BILI puts 13F-HR 2/14/2023 000135755023000062
Q3 2022 2 7,086 VCXB, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000080
Q3 2022 665 4,062,228 PCGU, CHKEW, ATLAS AIR WORLDWIDE HLDGS IN, TBPH RESTATEMENT 12/5/2022 000135755022000111
Q2 2022 2 7,035 VCXB, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000079
Q2 2022 636 4,087,890 PCGU, NEE puts, LQD, SJIIU 13F-HR 8/15/2022 000135755022000106
Q1 2022 2 7,042 VCXB, VCXBWS NEW HOLDINGS 11/16/2023 000135755023000078
Q1 2022 792 4,817,136 AVGOP, PCGU, SPY, ZYNGA INC 13F-HR 5/13/2022 000135755022000101
Q4 2021 2 1,466 FVAM, JOBS NEW HOLDINGS 11/16/2023 000135755023000077
Q4 2021 685 4,667,683 SPY, NUANCE COMMUNICATIONS INC, PCGU, AEROJET ROCKETDYNE HLDGS INC 13F-HR 2/14/2022 000135755022000098
Q3 2021 2 7,730 ENFA, FVAM NEW HOLDINGS 11/16/2023 000135755023000076
Q3 2021 511 3,989,857 SPY, NUANCE COMMUNICATIONS INC, PCGU, AEROJET ROCKETDYNE HLDGS INC 13F-HR 11/12/2021 000135755021000074
Q2 2021 2 11,113 VCVC, FVAM NEW HOLDINGS 11/16/2023 000135755023000075
Q2 2021 495 4,017,297 PROOFPOINT INC, NUANCE COMMUNICATIONS INC, JOYY INC, AEROJET ROCKETDYNE HLDGS INC 13F-HR 8/13/2021 000135755021000054
Q1 2021 534 3,707,100 REALPAGE INC, IQIYI INC, YY INC, LIBERTY MEDIA CORP DEL 13F-HR 5/14/2021 000135755021000041
Q4 2020 329 2,265,754 REALPAGE INC, IQIYI INC, IWM puts, SPY puts 13F-HR 2/12/2021 000135755021000015
Q3 2020 249 2,454,722 ZILLOW GROUP INC, WORKDAY INC, ON SEMICONDUCTOR CORP, SPY puts 13F-HR 11/13/2020 000135755020000070
Q2 2020 194 1,447,080 CCIPRA, BIOMARIN PHARMACEUTICAL INC, SPY puts, CHEGG INC 13F-HR 8/13/2020 000135755020000056
Q1 2020 194 628,672 SPY puts, GEN, SPY, CCIPRA 13F-HR 5/14/2020 000135755020000051
Q4 2019 317 1,478,137 MEDICINES CO, MICROCHIP TECHNOLOGY INC, CAESARS ENTMT CORP, SPY puts 13F-HR 2/14/2020 000135755020000038
Q3 2019 377 1,249,991 MICROCHIP TECHNOLOGY INC, LIBERTY MEDIA CORP, BDXA, PFF puts 13F-HR 11/14/2019 000135755019000067
Q2 2019 353 1,648,111 LIBERTY MEDIA CORP, DCUD, AABA, RED HAT INC 13F-HR 8/14/2019 000135755019000062
Q1 2019 303 1,278,250 LIBERTY MEDIA CORP, INTEGRATED DEVICE TECHNOLOGY, D calls, STARWOOD WAYPOINT RESIDENTL RESTATEMENT 5/17/2019 000135755019000054
Q4 2018 454 1,421,937 LIBERTY MEDIA CORP, TSLA puts, INTEGRATED DEVICE TECHNOLOGY, LIBERTY MEDIA CORP DELAWARE 13F-HR 2/14/2019 000135755019000015
Q3 2018 197 1,301,085 CIENA CORP, EURONET WORLDWIDE INC, INTEGRATED DEVICE TECHNOLOGY, MICRON TECHNOLOGY INC 13F-HR 11/13/2018 000135755018000035
Q2 2018 201 1,010,355 LIBERTY MEDIA CORP DELAWARE, DPS, CONVERGYS CORP, TEVA puts 13F-HR 8/13/2018 000135755018000029
Q1 2018 228 1,242,401 CEF, TRINITY INDS INC, CRM, CRM puts 13F-HR 5/15/2018 000135755018000022
Q4 2017 260 1,147,142 AGNPRA, CEF, BOBE, AGN calls 13F-HR 2/14/2018 000135755018000003
Q3 2017 110 901,467 INTEL CORP, AGN calls, ARNCPRB, TAKE-TWO INTERACTIVE SOFTWAR 13F-HR 11/14/2017 000135755017000019
Q2 2017 99 970,543 DCUC, NVIDIA CORP, PNRA, INTEL CORP 13F-HR 8/11/2017 000135755017000017
Q1 2017 73 772,070 NVIDIA CORP, INTEL CORP, NOVELLUS SYS INC, BROCADE COMMUNICATIONS SYS I 13F-HR 5/12/2017 000135755017000013
Q4 2016 215 667,468 INTEL CORP, XILINX INC, KEYPRG, MENTOR GRAPHICS CORP 13F-HR 2/14/2017 000135755017000004
Q3 2016 158 536,570 INTEL CORP, WHITING PETE CORP NEW, QPAC, EAGL 13F-HR 11/14/2016 000135755016000024
Q2 2016 78 581,363 WYPRA, AG, NEEPRP, EXELIXIS INC 13F-HR 8/12/2016 000135755016000020
Q1 2016 69 402,548 NPBC, NEEPRP, VECTOR GROUP LTD, AGNPRA 13F-HR 5/13/2016 000135755016000016
Q4 2015 238 394,619 TYFDL, WESCO INTL INC, VECTOR GROUP LTD, VERISIGN INC 13F-HR 2/12/2016 000135755016000013
Q3 2015 43 135,282 SWU, GTU, CTF, VECTOR GROUP LTD 13F-HR 11/13/2015 000135755015000011
Q2 2015 37 83,216 CTF, SWU, RPTPRD, SA 13F-HR 8/14/2015 000135755015000009
Q1 2015 41 118,487 LIBERTY INTERACTIVE LLC, EWY, RPTPRD, SA 13F-HR 5/14/2015 000135755015000007
Q4 2014 69 246,403 MICROCHIP TECHNOLOGY INC, HTWO, EWY, STARWOOD PPTY TR INC RESTATEMENT 4/17/2015 000135755015000004
Q3 2014 1 1,838 NGPC NEW HOLDINGS 4/17/2015 000135755015000005
Q3 2014 39 99,340 EWY, HTWO, JGT, MICROCHIP TECHNOLOGY INC 13F-HR 11/14/2014 000135755014000011
Q2 2014 1 4 GGTRT NEW HOLDINGS 4/17/2015 000135755015000006
Q2 2014 36 145,265 ALLY, SIR, PVG, EWY 13F-HR 8/14/2014 000135755014000009
Q1 2014 35 241,534 LINEAR TECHNOLOGY CORP, CWHPRD, OCRPRB, COVANTA HLDG CORP 13F-HR 5/14/2014 000135755014000007
Q4 2013 116 274,325 PHYS, OCRPRB, L-3 COMMUNICATIONS CORP, ALLIANT TECHSYSTEMS INC 13F-HR 2/12/2014 000135755014000004
Additional filings from Weiss Asset Management LP that have since been restated

13D and 13G Filings

All 13D and 13G filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each security where the latest filing since 12/18/2024 is a 13D, newest first.

Issuer % of Class Filed
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Theravance Biopharma, Inc. 13D/A
TBPH · G8807B106
0% 9/25/2026
Event 9/23/2026

11 other securities where the latest filing is a 13G, the newest filed 8/14/2026. View all