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Disclosery

CAXTON CORP

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13F filer, CIK 1388551, Princeton, NJ

CAXTON CORP reported $5,080,780 across 12 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-15. Its ten largest share positions make up 99.52% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000919574-25-003127

Changes against Q4 2024 are not shown: its report omitted holdings under a confidential treatment request (15 positions on file), so every position would read as new.

The filing omits holdings under a confidential treatment request (H8). A later amendment may add them.

Period
2025-03-31
Reported value
$5.08M
Holdings
12
Top 10 weight
99.52%
New
Sold out

Holdings, Q1 2025

Share positions as resolved from 13F-HR 0000919574-25-003127, largest first. % of portfolio is the value over $5,080,779, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
RZLTREZOLUTE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,318,967 shares; 2024Q4: 1,318,967 shares; 2025Q1: 1,318,967 shares 1,318,967$3.83M75.28%The filing omitted confidential holdings, a later amendment may add them.Timeline
GLDSPDR GOLD TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 1,169 shares; 2025Q1: 1,298 shares 1,298$374K7.36%The filing omitted confidential holdings, a later amendment may add them.Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,151 shares; 2024Q4: 1,133 shares; 2025Q1: 467 shares 467$249K4.9%The filing omitted confidential holdings, a later amendment may add them.Timeline
MIND MEDICINE MINDMED INCMIND MEDICINE MINDMED INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 34,073 shares; 2024Q4: 34,073 shares; 2025Q1: 34,073 shares 34,073$199K3.92%The filing omitted confidential holdings, a later amendment may add them.
BCAXBICARA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 10,941 shares; 2024Q4: 10,941 shares; 2025Q1: 10,941 shares 10,941$143K2.81%The filing omitted confidential holdings, a later amendment may add them.Timeline
CMPXCOMPASS THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 43,465 shares; 2024Q4: 43,465 shares; 2025Q1: 43,465 shares 43,465$82.6K1.63%The filing omitted confidential holdings, a later amendment may add them.Timeline
LXEOLEXEO THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 17,851 shares; 2024Q4: 17,851 shares; 2025Q1: 17,851 shares 17,851$61.9K1.22%The filing omitted confidential holdings, a later amendment may add them.Timeline
KYTXKYVERNA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 22,981 shares; 2024Q4: 22,981 shares; 2025Q1: 22,981 shares 22,981$44.4K0.87%The filing omitted confidential holdings, a later amendment may add them.Timeline
CRDFCARDIFF ONCOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 13,287 shares; 2025Q1: 13,287 shares 13,287$41.7K0.82%The filing omitted confidential holdings, a later amendment may add them.Timeline
IKTINHIBIKASE THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 16,393 shares; 2025Q1: 16,393 shares 16,393$35.9K0.71%The filing omitted confidential holdings, a later amendment may add them.Timeline
ADICET BIO INCADICET BIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 17,488 shares; 2024Q4: 17,488 shares; 2025Q1: 17,488 shares 17,488$13.2K0.26%The filing omitted confidential holdings, a later amendment may add them.
CNTXCONTEXT THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 18,403 shares; 2024Q4: 18,403 shares; 2025Q1: 18,403 shares 18,403$11.3K0.22%The filing omitted confidential holdings, a later amendment may add them.Timeline

How Q1 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0000919574-25-003127 base2025-05-15acceptance time not in the bulk data set