Weiss Asset Management LP
CIK 1357550 · Holdings on Dec 31, 2024 · First reported Feb 14, 2025
Top ten holdings
Q4 2024- 4181001034.17%
- 629377CG52.59%
- 13469VAB42.40%
- IBIT2.35%
- 45867GAD32.19%
- JNP2.00%
- 594972AE11.99%
- 29355AAH01.96%
- 29260Y1091.89%
- 462222AD21.75%
Share classes counted separately23.29%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- 45867GAD3Weight increased · +1.18 pp1.01% → 2.19%Shares +16.50M (+76.74%)
- DFSWeight increased · +1.14 pp0.28% → 1.42%Shares +280.75K (+359.93%)
- JNPWeight increased · +1.10 pp0.90% → 2.00%Shares +1.43M (+157.56%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 25
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | 418100103HASHICORP INC-CL ACOM CL A View history and evidence | $182.99M | 4.17% | 5.35M shares | Prior unavailable +5.35M | New | ↗▾ |
| 02 | 629377CG5NRG ENERGY INCDBCV 2.750% 6/0 View history and evidence | $113.46M | 2.59% | 51.52M principal (USD) | 2.91% → 2.59%-0.32 pp 0 (0.00%) | Unchanged | ↗▾ |
| 03 | 13469VAB4CAMTEK LTD/ISRAELNOTE 12/0 View history and evidence | $105.18M | 2.40% | 69.85M principal (USD) | 2.35% → 2.40%+0.05 pp +7.90M (+12.75%) | Added | ↗▾ |
| 04 | IBITISHARES BITCOIN TRUST ETFSHS BEN INT View history and evidence | $103.13M | 2.35% | 1.94M shares | Prior unavailable +1.94M | New | ↗▾ |
| 05 | 45867GAD3INTERDIGITAL INCNOTE 3.500% 6/0 View history and evidence | $95.80M | 2.19% | 38.00M principal (USD) | 1.01% → 2.19%+1.18 pp +16.50M (+76.74%) | Added | ↗▾ |
| 06 | JNPJUNIPER NETWORKS INC View history and evidence | $87.58M | 2.00% | 2.34M shares | 0.90% → 2.00%+1.10 pp +1.43M (+157.56%) | Added | ↗▾ |
| 07 | 594972AE1MICROSTRATEGY INCNOTE 2/1 View history and evidence | $87.24M | 1.99% | 42.16M principal (USD) | Prior unavailable +42.16M | New | ↗▾ |
| 08 | 29355AAH0ENPHASE ENERGY INCNOTE 3/0 View history and evidence | $85.81M | 1.96% | 91.50M principal (USD) | 1.73% → 1.96%+0.23 pp +19.00M (+26.21%) | Added | ↗▾ |
| 09 | 29260Y109ENDEAVOR GROUP HOLD-CLASS ACL A COM View history and evidence | $82.93M | 1.89% | 2.65M shares | 1.38% → 1.89%+0.51 pp +756.43K (+39.94%) | Added | ↗▾ |
| 10 | 462222AD2IONIS PHARMACEUTICALS INNOTE 4/0 View history and evidence | $76.50M | 1.75% | 78.97M principal (USD) | 0.69% → 1.75%+1.06 pp +51.97M (+192.47%) | Added | ↗▾ |
Options overlay 18
$953.94M notionalPut and Call positions are separate. Notional is based on underlying securities, not option premium, market value or net exposure. Quantities are underlying shares.
| Security | Put / Call | Underlying shares | Notional | Quantity change | |
|---|---|---|---|---|---|
MSTRSTRATEGY INCCL A NEW View history and evidence | Put | 1.47M | $425.10M | +232.80K (+18.85%) | ▾ |
SPYSS SPDR S&P 500 ETF TRUST-USTR UNIT View history and evidence | Put | 339.00K | $198.68M | -10.20K (-2.92%) | ▾ |
AALAMERICAN AIRLINES GROUP INC View history and evidence | Put | 4.43M | $77.22M | 0 (0.00%) | ▾ |
3 / 18 options · preview only
Exited positions 340
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| 71375UAF8 PERFICIENT INC | Non-derivative | -91,259,000 | -$89.90M | SEC filing ↗ | SEC filing ↗ |
| CTLT CATALENT INC | Non-derivative | -997,061 | -$60.39M | SEC filing ↗ | SEC filing ↗ |
| 65339F663 NEXTERA ENERGY INC | Non-derivative | -860,000 | -$47.91M | SEC filing ↗ | SEC filing ↗ |
3 / 340 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1357550 · Period 2024-12-31
Data loaded 2026-09-23 · First reported 2025-02-14
Amendments and versions
{
"amendments_merged": [
{
"action": "MERGE_ADD",
"accession": "0001357550-25-000019",
"cover_total": 473083423,
"filing_date": "2025-05-15",
"claimed_type": "NEW HOLDINGS",
"confidential": false,
"positions_added": 13,
"positions_restated": 0,
"positions_cancelled": 0
}
],
"prior_versions": null,
"cover_table_value": 4863961196
}Research all 614 reported holdings.
This page includes 30 of 614 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#portfolio-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 30 of 614 current positions (options included); totals and weights use the complete filing.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_portfolio
{"cik":"1357550","quarter":"2024Q4","page_size":100}
get_institutional_manager_history
{"cik":"1357550","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.