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Caxton Corp 13F Portfolio

Portfolio Manager
Caxton CORP
Performance
-11.10% (2026 Q2)
AUM (13F)
$1.85M
# of Holdings
10
Performance Rank
Allocation (Top 20)
75.99%
Latest filing
Q2 2026

Caxton CORP Holdings Map

Top 9 Caxton CORP Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
BRK.B
BERKSHIRE HATHAWAY INC DEL
20.35%754$377K
+3.71%(+27)
2025-Q2: 632 shares2025-Q3: 651 shares2025-Q4: 710 shares2026-Q1: 727 shares2026-Q2: 754 shares
$414.62(+20.91%)
2026-06-30
GOOGL
ALPHABET INC
13.32%691$247Knew2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 0 shares2026-Q2: 691 shares
$315.43(+9.28%)
2026-06-30
VOO
VANGUARD INDEX FDS
12.58%339$233Knew2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 0 shares2026-Q2: 339 shares
$633.87(+12.43%)
2026-06-30
BX
BLACKSTONE INC
10.16%1.6K$188Knew2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 0 shares2026-Q2: 1.6K shares
$114.63(+21.92%)
2026-06-30
KYTX
KYVERNA THERAPEUTICS INC
5.94%12.3K$110K
-34.23%(-6.43K)
2025-Q2: 23.0K shares2025-Q3: 23.0K shares2025-Q4: 18.8K shares2026-Q1: 18.8K shares2026-Q2: 12.3K shares
$22.15(-63.11%)
2026-06-30
LXEO
LEXEO THERAPEUTICS INC
4.26%17.0K$79K
+21.65%(+3.02K)
2025-Q2: 17.3K shares2025-Q3: 17.3K shares2025-Q4: 13.9K shares2026-Q1: 13.9K shares2026-Q2: 17.0K shares
$12.76(-62.07%)
2026-06-30
XFOR
X4 PHARMACEUTICALS INC
3.92%15.6K$73K
+0.00%(+0)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 15.6K shares2026-Q1: 15.6K shares2026-Q2: 15.6K shares
$3.71(+15.36%)
2026-06-30
IKT
INHIBIKASE THERAPEUTICS INC
3.12%28.5K$58K
+0.00%(+0)
2025-Q2: 16.4K shares2025-Q3: 16.4K shares2025-Q4: 28.5K shares2026-Q1: 28.5K shares2026-Q2: 28.5K shares
$2.09(+14.20%)
2026-06-30
ALXO
ALX ONCOLOGY HLDGS INC
2.34%20.9K$43K
+0.00%(+0)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 20.9K shares2026-Q2: 20.9K shares
$1.57(+25.04%)
2026-06-30

About Caxton CORPโ€™s portfolio

Caxton CORP reports $1.85M in US-listed equity holdings across 10 positions in its most recent 13F filing. Its largest disclosed positions are BRK.B (20.4%), GOOGL (13.3%) and VOO (12.6%). The top 20 holdings account for 75.99% of reported assets. Its disclosed equity book has returned +113.11% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
BRK.B โ€” 26.8% ($377.1K)GOOGL โ€” 17.5% ($246.9K)VOO โ€” 16.6% ($233.1K)BX โ€” 13.4% ($188.2K)KYTX โ€” 7.8% ($110.0K)LXEO โ€” 5.6% ($79.0K)XFOR โ€” 5.2% ($72.7K)IKT โ€” 4.1% ($57.8K)ALXO โ€” 3.1% ($43.4K)
100%in top 9
  • BRK.B26.8%
  • GOOGL17.5%
  • VOO16.6%
  • BX13.4%
  • KYTX7.8%
  • LXEO5.6%
  • XFOR5.2%
  • IKT4.1%
  • ALXO3.1%

Portfolio changes

What the fund actually did

Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.

New buys
3
GOOGLALPHABET INC13.3%
VOOVANGUARD INDEX FDS12.6%
BXBLACKSTONE INC10.2%
Added to
2
LXEOLEXEO THERAPEUTICS INC+21.7%
BRK.BBERKSHIRE HATHAWAY INC DEL+3.7%
Trimmed
1
KYTXKYVERNA THERAPEUTICS INC-34.2%

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Source filings

Holdings on this page are parsed from Caxton CORPโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1388551). View Caxton CORPโ€™s 13F filings on SEC

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