COWEN AND COMPANY, LLC
CIK 48966 · Holdings on Dec 31, 2023 · First reported Feb 12, 2024
Top ten holdings
Q4 2023- NVDA17.74%
- PTCT6.73%
- COIN4.24%
- RNA3.34%
- SIRI2.57%
- TARS2.54%
- 17144M1022.50%
- IMCR2.40%
- XLE2.16%
- RCKT2.16%
Share classes counted separately46.38%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- PTCTWeight increased · +5.47 pp1.26% → 6.73%Shares +2.93M (+365.99%)
- COINWeight increased · +3.37 pp0.87% → 4.24%Shares +206.40K (+125.03%)
- ESTAWeight decreased · -2.33 pp3.93% → 1.60%Shares -201.22K (-17.63%)
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 30
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | NVDANVIDIA CORP View history and evidence | $270.48M | 17.74% | 546.19K shares | 17.43% → 17.74%+0.31 pp -24.53K (-4.30%) | Reduced | ↗▾ |
| 02 | PTCTPTC THERAPEUTICS INC View history and evidence | $102.68M | 6.73% | 3.73M shares | 1.26% → 6.73%+5.47 pp +2.93M (+365.99%) | Added | ↗▾ |
| 03 | COINCOINBASE GLOBAL INC -CLASS ACOM CL A View history and evidence | $64.61M | 4.24% | 371.47K shares | 0.87% → 4.24%+3.37 pp +206.40K (+125.03%) | Added | ↗▾ |
| 04 | RNAAVIDITY BIOSCIENCES INC View history and evidence | $50.94M | 3.34% | 5.63M shares | 2.52% → 3.34%+0.82 pp 0 (0.00%) | Unchanged | ↗▾ |
| 05 | SIRISIRIUS XM HOLDINGS INC View history and evidence | $39.26M | 2.57% | 7.18M shares | 2.02% → 2.57%+0.55 pp +800.61K (+12.56%) | Added | ↗▾ |
| 06 | TARSTARSUS PHARMACEUTICALS INC View history and evidence | $38.71M | 2.54% | 1.91M shares | 2.24% → 2.54%+0.30 pp +114.63K (+6.38%) | Added | ↗▾ |
| 07 | 17144M102CHURCHILL CAPITAL CORP VIICOM CL A View history and evidence | $38.12M | 2.50% | 3.63M shares | 2.05% → 2.50%+0.45 pp +829.76K (+29.63%) | Added | ↗▾ |
| 08 | IMCRIMMUNOCORE HOLDINGS PLC-ADRADS View history and evidence | $36.65M | 2.40% | 536.49K shares | 1.68% → 2.40%+0.72 pp +76.45K (+16.62%) | Added | ↗▾ |
| 09 | XLESS ENERGY SELECT SECTORENERGY View history and evidence | $33.00M | 2.16% | 393.60K shares | 3.53% → 2.16%-1.37 pp -162.20K (-29.18%) | Reduced | ↗▾ |
| 10 | RCKTROCKET PHARMACEUTICALS INC View history and evidence | $32.97M | 2.16% | 1.10M shares | 1.58% → 2.16%+0.58 pp 0 (0.00%) | Unchanged | ↗▾ |
Options overlay 0
No options reported this quarter.
Exited positions 227
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| MSOS ADVISORSHARES PURE US CANN | Non-derivative | -6,139,280 | -$48.75M | SEC filing ↗ | SEC filing ↗ |
| G33032106 ARES ACQUISITION CORPORATION | Non-derivative | -3,385,401 | -$36.43M | SEC filing ↗ | SEC filing ↗ |
| PTGX PROTAGONIST THERAPEUTICS INC | Non-derivative | -1,657,551 | -$27.65M | SEC filing ↗ | SEC filing ↗ |
3 / 227 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 48966 · Period 2023-12-31
Data loaded 2026-09-23 · First reported 2024-02-12
Amendments and versions
{
"amendments_merged": [
{
"action": "REPLACE",
"accession": "0001085146-24-001035",
"cover_total": 1524593366,
"filing_date": "2024-02-12",
"claimed_type": "RESTATEMENT",
"confidential": false,
"positions_added": 56,
"positions_restated": 7,
"positions_cancelled": 0
}
],
"prior_versions": [
{
"accession": "0001085146-24-000862",
"filing_date": "2024-02-08",
"confidential": false,
"cover_table_value_total_raw": 456343822
}
],
"cover_table_value": 1524593366
}Research all 588 reported holdings.
This page includes 30 of 588 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 588 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":"48966","quarter":"2023Q4","page_size":100}
get_institutional_manager_history
{"cik":"48966","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.