Weiss Asset Management LP — 13F Holdings & Portfolio
CIK 1357550 · latest 13F-HR filed 2026-05-15
Weiss Asset Management LP manages $5.91B in 13F-reported U.S. long-equity assets across 488 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NVDA (16.46%), PSLV (3.38%), NVDA (3.21%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 471 new positions, exited 4, added to 0, and trimmed 1.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$5.91B
Long-equity book
488
Distinct positions
2026-03-31
Filed 2026-05-15
+471 / −4 / ↑0 / ↓1
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
New Positions
- NVIDIA CORPORATION$973.4M
- SPROTT ASSET MANAGEMENT LP$199.8M
- STRATEGY INC$170.4M
- SUPER MICRO COMPUTER INC$129.1M
- NEXTERA ENERGY INC$128.1M
Exited Positions
- AVIDITY BIOSCIENCES INC$155.9M
- CYBERARK SOFTWARE LTD$100.9M
- EXACT SCIENCES CORP$86.2M
- KENVUE INC$84.2M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $973.4M | 16.46% | 5,581,569 | SH |
| 2 | SPROTT ASSET MANAGEMENT LP | PSLV | 85207K107 | $199.8M | 3.38% | 8,190,370 | SH |
| 3 | NVIDIA CORPORATION Put | NVDA | 67066G104 | $190.1M | 3.21% | 1,090,000 | SH |
| 4 | STRATEGY INC | MHIFF | 594972AQ4 | $170.4M | 2.88% | 154,820,000 | PRN |
| 5 | SUPER MICRO COMPUTER INC | SMCI | 86800UAD6 | $129.1M | 2.18% | 148,376,000 | PRN |
| 6 | NEXTERA ENERGY INC | NEEPV | 65339F655 | $128.1M | 2.17% | 2,547,000 | SH |
| 7 | STRATEGY INC Put | MSTR | 594972408 | $121.2M | 2.05% | 971,100 | SH |
| 8 | THERAVANCE BIOPHARMA INC | TBPH | G8807B106 | $121.0M | 2.05% | 7,457,060 | SH |
| 9 | STRATEGY INC | MHIFF | 594972AU5 | $106.0M | 1.79% | 121,016,000 | PRN |
| 10 | UGI CORP NEW | UGI | 902681AB1 | $99.6M | 1.68% | 70,890,000 | PRN |
| 11 | HOLOGIC INC | HOLX | 436440101 | $93.0M | 1.57% | 1,230,436 | SH |
| 12 | ISHARES BITCOIN TRUST ETF | IBIT | 46438F101 | $87.6M | 1.48% | 2,280,228 | SH |
| 13 | BITMINE IMMERSION TECNOLOGIE | BMNR | 09175A206 | $85.6M | 1.45% | 4,328,294 | SH |
| 14 | STRATEGY INC | MSTR | 594972408 | $83.3M | 1.41% | 667,502 | SH |
| 15 | SPROTT ASSET MANAGEMENT LP | CEF | 85208R101 | $83.0M | 1.40% | 1,739,500 | SH |
| 16 | STRATEGY INC | MHIFF | 594972AJ0 | $80.9M | 1.37% | 69,890,000 | PRN |
| 17 | SUPER MICRO COMPUTER INC | SMCI | 86800UAB0 | $79.8M | 1.35% | 99,079,000 | PRN |
| 18 | GREENBRIER COS INC | GBX | 393657AM3 | $69.7M | 1.18% | 60,197,000 | PRN |
| 19 | MCEWEN INC. | MUX | 58039PAB3 | $66.2M | 1.12% | 31,300,000 | PRN |
| 20 | ALBEMARLE CORP | ALBPA | 012653200 | $59.0M | 1.00% | 820,000 | SH |
| 21 | AMICUS THERAPEUTIC | FOLD | 03152W109 | $56.0M | 0.95% | 3,872,902 | SH |
| 22 | STRATEGY INC | MHIFF | 594972AN1 | $53.6M | 0.91% | 52,395,000 | PRN |
| 23 | WEIBO CORP | WEIBF | 948596AJ0 | $50.8M | 0.86% | 48,143,000 | PRN |
| 24 | TESLA INC | TSLA | 88160R101 | $48.1M | 0.81% | 129,508 | SH |
| 25 | PPL CORP | PPLC | 69351T866 | $47.5M | 0.80% | 930,000 | SH |
| 26 | EPR PPTYS | EPRPC | 26884U208 | $47.3M | 0.80% | 2,067,831 | SH |
| 27 | LOCKHEED MARTIN CORP | LMT | 539830109 | $37.2M | 0.63% | 61,616 | SH |
| 28 | OVINTIV INC | OVV | 69047Q102 | $35.4M | 0.60% | 596,820 | SH |
| 29 | APARTMENT INVT & MGMT CO | AIV | 03748R747 | $33.2M | 0.56% | 8,150,456 | SH |
| 30 | KIMBERLY-CLARK CORP | KMB | 494368103 | $33.0M | 0.56% | 342,607 | SH |
| 31 | ETSY INC | ETSY | 29786AAL0 | $32.5M | 0.55% | 34,782,000 | PRN |
| 32 | MICRON TECHNOLOGY INC | MU | 595112103 | $32.1M | 0.54% | 95,004 | SH |
| 33 | MOONLAKE IMMUNOTHERAPEUTICS | MLTX | 61559X104 | $31.8M | 0.54% | 1,708,328 | SH |
| 34 | SUPER MICRO COMPUTER INC | SMCI | 86800U302 | $31.8M | 0.54% | 1,396,585 | SH |
| 35 | FRESHPET INC | FRPT | 358039AB1 | $31.2M | 0.53% | 26,906,000 | PRN |
| 36 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $30.2M | 0.51% | 46,500 | SH |
| 37 | ENOVIS CORPORATION | ENOV | 194014AB2 | $29.9M | 0.51% | 30,864,000 | PRN |
| 38 | SIMON PPTY GROUP INC NEW | SPG | 828806109 | $28.2M | 0.48% | 151,181 | SH |
| 39 | APELLIS PHARMACEUTICALS INC | APLS | 03753U106 | $28.2M | 0.48% | 700,000 | SH |
| 40 | VENTURE GLOBAL INC Put | VG | 92333F101 | $28.0M | 0.47% | 1,777,600 | SH |
| 41 | KKR & CO INC | KKR | 48251W104 | $27.0M | 0.46% | 291,505 | SH |
| 42 | 3M CO | MMM | 88579Y101 | $26.9M | 0.46% | 185,404 | SH |
| 43 | CELLEBRITE DI LTD | CLBT | M2197Q107 | $26.2M | 0.44% | 1,899,841 | SH |
| 44 | VALERO ENERGY CORP | VLO | 91913Y100 | $26.1M | 0.44% | 105,816 | SH |
| 45 | WHIRLPOOL CORP | WHRPA | 963320205 | $25.8M | 0.44% | 625,000 | SH |
| 46 | STRATEGY INC | MHIFF | 594972AL5 | $25.5M | 0.43% | 26,360,000 | PRN |
| 47 | ARISTA NETWORKS INC | ANET | 040413205 | $25.3M | 0.43% | 206,200 | SH |
| 48 | SUNRUN INC | RUN | 86771WAD7 | $25.2M | 0.43% | 21,292,000 | PRN |
| 49 | COINBASE GLOBAL INC | COIN | 19260QAF4 | $25.1M | 0.42% | 26,934,000 | PRN |
| 50 | CENTENE CORP DEL | CNC | 15135B101 | $24.2M | 0.41% | 738,965 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $5.91B | 488 | 0001357550-26-000023 |
| 2025-12-31 | 2026-02-17 | $7.14B | 561 | 0001357550-26-000011 |
| 2025-12-31 | 2026-05-15 | $432.0M | 5 | 0001357550-26-000022 |
| 2025-09-30 | 2026-02-17 | $286.5M | 3 | 0001357550-26-000009 |