Caxton Corp.

In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 14, 2025), Caxton Corp. reported 11 stock positions worth $9.9 million. Its top holding was Rezolute (RZLT) at 72.6% of the portfolio, followed by SPDR Gold Shares (GLD, 15.3%) and Berkshire Hathaway Class B (BRK.B, 3.1%). Compared with Q1 2025, it opened 1 new position, sold out of 2, added to 3 and reduced 1. The biggest buy was SPDR Gold Shares (GLD, shares +282%) and the biggest sale an exit from Cardiff Oncology (CRDF).

Most Recent 13F
Q2 2026
Location
Princeton, NJ
CIK
0001388551
Portfolio Value
$9.9M (Q2 2025)
SEC Filing
0000919574-25-004762 ↗ filed Aug 14, 2025

Holdings Value

0$5.0M$10.0M$15.0M$20.0M$25.0M Q1 2024: $17.6M Q1 2024 Q2 2024: $19.7M Q2 2024 Q3 2024: $24.2M Q3 2024 Q4 2024: $16.6M Q4 2024 Q1 2025: $5.1M Q1 2025 Q2 2025: $9.9M $9.9M Q2 2025 Q3 2025: $22.9M Q3 2025 Q4 2025: $4.3M Q4 2025 Q1 2026: $4.0M Q1 2026 Q2 2026: $1.9M Q2 2026

Holdings 11 stocks · $9.9M
RZLT Rezolute Inc. 72.60% 1,603,986 $7.2M Add +21.6%
GLD SPDR Gold Shares 15.32% 4,952 $1.5M Add +281.5%
BRK.B Berkshire Hathaway Inc. Class B 3.12% 632 $307K Add +35.3%
ELVN Enliven Therapeutics Inc. 2.67% 13,097 $263K New
MIND MEDICINE MINDMED INC 2.24% 34,073 $221K No change
CMPX Compass Therapeutics Inc. 1.15% 43,465 $113K No change
BCAX Bicara Therapeutics Inc. 1.03% 10,941 $102K No change
KYTX Kyverna Therapeutics Inc. 0.72% 22,981 $71K No change
LXEO Lexeo Therapeutics Inc. 0.71% 17,332 $70K Reduce -2.9%
IKT Inhibikase Therapeutics Inc. 0.32% 16,393 $32K No change
CNTX Context Therapeutics Inc. 0.12% 18,403 $12K No change

Portfolio Sells Q1 2025 → Q2 2025
CRDF Cardiff Oncology Inc. Sold out 0.00% −0.82
LXEO Lexeo Therapeutics Inc. Reduce -2.9% 0.71% −0.51
ACET Adicet Bio Inc. Sold out 0.00% −0.26

Portfolio Buys Q1 2025 → Q2 2025
GLD SPDR Gold Shares Add +281.5% 15.32% +7.96
ELVN Enliven Therapeutics Inc. New 2.67% +2.67
BRK.B Berkshire Hathaway Inc. Class B Add +35.3% 3.12% −1.78
RZLT Rezolute Inc. Add +21.6% 72.60% −2.68

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 10$1.9MSPCX, BRK.B, GOOGL, VOO, BX
Q1 2026 7$4.0MGLD, BRK.B, KYTX, LXEO, XFOR
Q4 2025 11$4.3MGLD, BRK.B, SYRE, MIND MEDICINE MINDMED INC, KYTX
Q3 2025 12$22.9MRZLT, GLD, BRK.B, MIND MEDICINE MINDMED INC, ELVN
Q2 2025 11$9.9MRZLT, GLD, BRK.B, ELVN, MIND MEDICINE MINDMED INC
Q1 2025 12$5.1MRZLT, GLD, BRK.B, MIND MEDICINE MINDMED INC, BCAX
Q4 2024 15$16.6MXERS, RZLT, SPY, BRK.B, GLD
Q3 2024 12$24.2MXERS, RZLT, SPY, BRK.B, BCAX
Q2 2024 12$19.7MXERS, RZLT, SPY, BRK.B, LXEO
Q1 2024 11$17.6MXERS, RZLT, SPY, BRK.B, KYTX