Filed: 8/14/2026ACC: 0000919574-26-005174
📋 What this filing means
CAXTON CORP filed this quarterly 13F‑HR report disclosing 10 equity positions with a total reported market value of $1.85M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
10
Positions
$1.85M
Total AUM (reported)
100.25K
Total Shares
Allocation by class
PUT$445.3K24.0%
COM$420.5K22.7%
CL B NEW$377.1K20.3%
CAP STK CL A$246.9K13.3%
S&P 500 ETF SHS$233.1K12.6%
COM NEW$130.4K7.0%
Portfolio Concentration
Top 3$1.07M57.7%
4–10$784.0K42.3%
Top 3 weight
57.7%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 100.25K
Sole
Full voting authority
100.25K
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole10
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings10
Rows:
SPACE EXPLORATION TECHN CORP
SOLEShares2.61K
TypeSH
Market value$445.3K
24.03%
Sole
2.61K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares754.00
TypeSH
Market value$377.1K
20.35%
Sole
754.00
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares691.00
TypeSH
Market value$246.9K
13.32%
Sole
691.00
Shared
0.00
None
0.00
VANGUARD INDEX FDS
SOLEShares339.00
TypeSH
Market value$233.1K
12.58%
Sole
339.00
Shared
0.00
None
0.00
BLACKSTONE INC
SOLEShares1.60K
TypeSH
Market value$188.2K
10.16%
Sole
1.60K
Shared
0.00
None
0.00
KYVERNA THERAPEUTICS INC
SOLEShares12.35K
TypeSH
Market value$110.0K
5.94%
Sole
12.35K
Shared
0.00
None
0.00
LEXEO THERAPEUTICS INC
SOLEShares16.96K
TypeSH
Market value$79.0K
4.26%
Sole
16.96K
Shared
0.00
None
0.00
X4 PHARMACEUTICALS INC
SOLEShares15.56K
TypeSH
Market value$72.7K
3.92%
Sole
15.56K
Shared
0.00
None
0.00
INHIBIKASE THERAPEUTICS INC
SOLEShares28.45K
TypeSH
Market value$57.8K
3.12%
Sole
28.45K
Shared
0.00
None
0.00
ALX ONCOLOGY HLDGS INC
SOLEShares20.95K
TypeSH
Market value$43.4K
2.34%
Sole
20.95K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
SPACE EXPLORATION TECHN CORPSOLE | PUT | 2.61K | SH | $445.3K 24.03% | 2.61K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 754.00 | SH | $377.1K 20.35% | 754.00 | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 691.00 | SH | $246.9K 13.32% | 691.00 | 0.00 | 0.00 |
VANGUARD INDEX FDSSOLE | S&P 500 ETF SHS | 339.00 | SH | $233.1K 12.58% | 339.00 | 0.00 | 0.00 |
BLACKSTONE INCSOLE | COM | 1.60K | SH | $188.2K 10.16% | 1.60K | 0.00 | 0.00 |
KYVERNA THERAPEUTICS INCSOLE | COM | 12.35K | SH | $110.0K 5.94% | 12.35K | 0.00 | 0.00 |
LEXEO THERAPEUTICS INCSOLE | COM | 16.96K | SH | $79.0K 4.26% | 16.96K | 0.00 | 0.00 |
X4 PHARMACEUTICALS INCSOLE | COM NEW | 15.56K | SH | $72.7K 3.92% | 15.56K | 0.00 | 0.00 |
INHIBIKASE THERAPEUTICS INCSOLE | COM NEW | 28.45K | SH | $57.8K 3.12% | 28.45K | 0.00 | 0.00 |
ALX ONCOLOGY HLDGS INCSOLE | COM | 20.95K | SH | $43.4K 2.34% | 20.95K | 0.00 | 0.00 |