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Caxton Corp

SEC CIK
0001388551
Latest filing
Aug 13, 2026

The latest 13F from Caxton Corp covers Q2 2026 (filed Aug 13, 2026): 10 long positions worth $1.85M. The top 10 holdings make up 100.0% of the portfolio, and the largest is Space Exploration Technologies Corp (SPCX) at 24.0%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
4
Est. +$1.11M
Added
2
Est. +$27.6K
Reduced
1
Est. −$57.3K
Sold out
1
Est. −$3.28M

Top 5 holdings

Share of this quarter's portfolio value

  1. SPCXSpace Exploration Technologies Corp
    24.0%$445.3KHistory
  2. BRK.BBerkshire Hathaway Inc
    20.3%$377.1KHistory
  3. GOOGLAlphabet Inc.
    13.3%$246.9KHistory
  4. Vanguard S&P 500 ETF922908363
    12.6%$233.1K
  5. BXBlackstone Inc.
    10.2%$188.2KHistory

Biggest buys

New and added positions, by estimated amount bought

  1. SPCXSpace Exploration Technologies Corp
    +$445.3KNewHistory
  2. GOOGLAlphabet Inc.
    +$246.9KNewHistory
  3. Vanguard S&P 500 ETF922908363
    +$233.1KNew
  4. BXBlackstone Inc.
    +$188.2KNewHistory
  5. LXEOLexeo Therapeutics, Inc.
    +$14.1KAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. SPCXSpace Exploration Technologies Corp
    +24.03 pp0.0% → 24.0%History
  2. GOOGLAlphabet Inc.
    +13.32 pp0.0% → 13.3%History
  3. Vanguard S&P 500 ETF922908363
    +12.58 pp0.0% → 12.6%
  4. BRK.BBerkshire Hathaway Inc
    +11.69 pp8.7% → 20.3%History
  5. BXBlackstone Inc.
    +10.16 pp0.0% → 10.2%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. GLDSPDR Gold Trust
    −$3.28MSold outHistory
  2. KYTXKyverna Therapeutics, Inc.
    −$57.3KReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. GLDSPDR Gold Trust
    −81.50 pp81.5% → 0.0%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$1.85M
−$2.17M (−53.9%) vs. prior quarter
Positions
10
+3 vs. prior quarter
Top 10 concentration
100.0%
Top 10 as share of value
Turnover
38.8%
Q2 2026, one quarter
Average holding period
4.3 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $153.9M (Q1 2021)

Q1 2021: $153.9MQ2 2021: $146.0MQ3 2021: $123.4MQ4 2021: $122.3MQ1 2022: $80.4MQ2 2022: $46.0MQ3 2022: $41.9MQ4 2022: $39.1MQ1 2023: $39.6MQ2 2023: $34.7MQ3 2023: $26.3MQ4 2023: $18.5MQ1 2024: $17.6MQ2 2024: $19.7MQ3 2024: $24.2MQ4 2024: $16.6MQ1 2025: $5.08MQ2 2025: $9.85MQ3 2025: $22.9MQ4 2025: $4.28MQ1 2026: $4.02MQ2 2026: $1.85M
Q1 2021Q2 2026
13F filings of Caxton Corp by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 13, 202610$1.85MSPCXBRK.BGOOGLvs. Q1 2026SEC
Q1 2026May 14, 20267$4.02MGLDBRK.BKYTXvs. Q4 2025SEC
Q4 2025Feb 13, 202611$4.28MGLDBRK.BSYREvs. Q3 2025SEC
Q3 2025Nov 14, 202512$22.9MRZLTGLDBRK.Bvs. Q2 2025SEC
Q2 2025Aug 14, 202511$9.85MRZLTGLDBRK.Bvs. Q1 2025SEC
Q1 2025May 15, 202512$5.08MRZLTGLDBRK.Bvs. Q4 2024SEC
Q4 2024Feb 14, 202515$16.6MXERSRZLTSPYvs. Q3 2024SEC
Q3 2024Nov 14, 202412$24.2MXERSRZLTSPYvs. Q2 2024SEC
Q2 2024Aug 14, 202412$19.7MXERSRZLTSPYvs. Q1 2024SEC
Q1 2024May 15, 202411$17.6MXERSRZLTSPYvs. Q4 2023SEC
Q4 2023Feb 14, 202412$18.5MXERSSVRARZLTvs. Q3 2023SEC
Q3 2023Nov 14, 20239$26.3MSVRAXERSRZLTvs. Q2 2023SEC
Q2 2023Aug 14, 20237$34.7MSVRAXERSRZLTvs. Q1 2023SEC
Q1 2023May 15, 202315$39.6MSVRAXERSSPYvs. Q4 2022SEC
Q4 2022Feb 14, 202317$39.1MSVRAXERSSPYvs. Q3 2022SEC
Q3 2022Nov 14, 202216$41.9MSVRAXERSSPYvs. Q2 2022SEC
Q2 2022Aug 15, 202215$46.0MSVRAXERSGLDvs. Q1 2022SEC
Q1 2022May 16, 202237$80.4MXERSSVRAGLDvs. Q4 2021SEC
Q4 2021Feb 14, 202252$122.3MXERSCRDFSCYXvs. Q3 2021SEC
Q3 2021Nov 15, 202155$123.4MCRDFSBBPMTEMvs. Q2 2021SEC
Q2 2021Aug 16, 202163$146.0MSBBPMTEMCRDFvs. Q1 2021SEC
Q1 2021May 17, 202169$153.9MMTEMSBBPCRDF–SEC