CAXTON CORP
CIK 1388551 · Holdings on Jun 30, 2026 · First reported Aug 14, 2026
Top ten holdings
Q2 2026- SPCX24.03%
- BRK.B20.35%
- GOOGL13.32%
- VOO12.58%
- BX10.16%
- KYTX5.94%
- LXEO4.26%
- XFOR3.92%
- IKT3.12%
- ALXO2.34%
Share classes counted separately100.02%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- BRK.BWeight increased · +11.69 pp8.66% → 20.35%Shares +27 (+3.71%)
- XFORWeight increased · +2.32 pp1.60% → 3.92%Shares 0 (0.00%)
- LXEOWeight increased · +2.27 pp1.99% → 4.26%Shares +3.02K (+21.65%)
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 10
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | SPCXSPACE EXPLORATION TECHN-CL APUT View history and evidence | $445.35K | 24.03% | 2.61K shares | Prior unavailable +2.61K | New | ▾ |
| 02 | BRK.BBERKSHIRE HATHAWAY INC-CL BCL B NEW View history and evidence | $377.13K | 20.35% | 754 shares | 8.66% → 20.35%+11.69 pp +27 (+3.71%) | Added | ▾ |
| 03 | GOOGLALPHABET INC-CL ACAP STK CL A View history and evidence | $246.91K | 13.32% | 691 shares | Prior unavailable +691 | New | ▾ |
| 04 | VOOVANGUARD S&P 500 ETFS&P 500 ETF SHS View history and evidence | $233.09K | 12.58% | 339 shares | Prior unavailable +339 | New | ▾ |
| 05 | BXBLACKSTONE INC View history and evidence | $188.22K | 10.16% | 1.60K shares | Prior unavailable +1.60K | New | ▾ |
| 06 | KYTXKYVERNA THERAPEUTICS INC View history and evidence | $110.01K | 5.94% | 12.35K shares | 4.03% → 5.94%+1.91 pp -6.43K (-34.23%) | Reduced | ▾ |
| 07 | LXEOLEXEO THERAPEUTICS INC View history and evidence | $78.96K | 4.26% | 16.96K shares | 1.99% → 4.26%+2.27 pp +3.02K (+21.65%) | Added | ▾ |
| 08 | XFORX4 PHARMACEUTICALS INCCOM NEW View history and evidence | $72.65K | 3.92% | 15.56K shares | 1.60% → 3.92%+2.32 pp 0 (0.00%) | Unchanged | ▾ |
| 09 | IKTINHIBIKASE THERAPEUTICS INCCOM NEW View history and evidence | $57.76K | 3.12% | 28.45K shares | 1.19% → 3.12%+1.93 pp 0 (0.00%) | Unchanged | ▾ |
| 10 | ALXOALX ONCOLOGY HOLDINGS INC View history and evidence | $43.36K | 2.34% | 20.95K shares | 1.04% → 2.34%+1.30 pp 0 (0.00%) | Unchanged | ▾ |
Options overlay 0
No options reported this quarter.
Exited positions 1
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| GLD SPDR GOLD SHARES | Non-derivative | -7,623 | -$3.28M | SEC filing ↗ | SEC filing ↗ |
1 / 1 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 1388551 · Period 2026-06-30
Data loaded 2026-09-23 · First reported 2026-08-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 1853427
}Take these holdings further.
This page includes 10 of 10 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 10 of 10 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":"1388551","quarter":"2026Q2","page_size":100}
get_institutional_manager_history
{"cik":"1388551","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.