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Disclosery

CAXTON CORP

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13F filer, CIK 1388551, Princeton, NJ

CAXTON CORP reported $1,853,427 across 10 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000919574-26-005174

Changes against Q1 2026 are not shown: its report omitted holdings under a confidential treatment request (7 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
2026-06-30
Reported value
$1.85M
Holdings
10
Top 10 weight
100%
New
Sold out

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0000919574-26-005174, largest first. % of portfolio is the value over $1,853,427, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
SPCXSPACE EXPLORATION TECHN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 2,606 shares 2,606$445K24.03%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; 2024Q3: 1,151 shares; 2024Q4: 1,133 shares; 2025Q1: 467 shares; 2025Q2: 632 shares; 2025Q3: 651 shares; 2025Q4: 710 shares; 2026Q1: 727 shares; 2026Q2: 754 shares 754$377K20.35%The filing omitted confidential holdings, a later amendment may add them.Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 691 shares 691$247K13.32%The filing omitted confidential holdings, a later amendment may add them.Timeline
VOOVANGUARD INDEX FDSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 339 shares 339$233K12.58%The filing omitted confidential holdings, a later amendment may add them.Timeline
BXBLACKSTONE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 1,597 shares 1,597$188K10.16%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; 2024Q3: 22,981 shares; 2024Q4: 22,981 shares; 2025Q1: 22,981 shares; 2025Q2: 22,981 shares; 2025Q3: 22,981 shares; 2025Q4: 18,773 shares; 2026Q1: 18,773 shares; 2026Q2: 12,347 shares 12,347$110K5.94%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; 2024Q3: 17,851 shares; 2024Q4: 17,851 shares; 2025Q1: 17,851 shares; 2025Q2: 17,332 shares; 2025Q3: 17,332 shares; 2025Q4: 13,943 shares; 2026Q1: 13,943 shares; 2026Q2: 16,962 shares 16,962$79K4.26%The filing omitted confidential holdings, a later amendment may add them.Timeline
XFORX4 PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 15,557 shares; 2026Q1: 15,557 shares; 2026Q2: 15,557 shares 15,557$72.7K3.92%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; 2024Q3: not reported; 2024Q4: 16,393 shares; 2025Q1: 16,393 shares; 2025Q2: 16,393 shares; 2025Q3: 16,393 shares; 2025Q4: 28,453 shares; 2026Q1: 28,453 shares; 2026Q2: 28,453 shares 28,453$57.8K3.12%The filing omitted confidential holdings, a later amendment may add them.Timeline
ALXOALX ONCOLOGY HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 20,946 shares; 2026Q2: 20,946 shares 20,946$43.4K2.34%The filing omitted confidential holdings, a later amendment may add them.Timeline

How Q2 2026 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 0000919574-26-005174 base2026-08-14acceptance time not in the bulk data set