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Livermore
Livermore
ZHEN

Aldebaran Capital, LLC

SEC CIK
0001448430
Latest filing
Aug 14, 2026

The latest 13F from Aldebaran Capital, LLC covers Q2 2026 (filed Aug 14, 2026): 39 long positions worth $133.1M. The top 10 holdings make up 60.0% of the portfolio, and the largest is Berkshire Hathaway Inc (BRK.B) at 15.6%. Livermore has 15 filings on Form 13F from this institution, going back to Q4 2022.

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
0
Added
4
Est. +$4.30M
Reduced
25
Est. −$2.24M
Sold out
4
Est. −$4.12M

Top 5 holdings

Share of this quarter's portfolio value

  1. BRK.BBerkshire Hathaway Inc
    15.6%$20.8MHistory
  2. LLYEli Lilly & Co
    8.1%$10.8MHistory
  3. MSFTMicrosoft Corp
    5.6%$7.48MHistory
  4. BGBunge Global SA
    5.3%$7.11MHistory
  5. iShares Russell Mid-Cap Value ETF464287473
    4.9%$6.52M

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Tr46435U374
    +$2.17MAdded
  2. LKQLKQ Corp
    +$1.47MAddedHistory
  3. BRK.BBerkshire Hathaway Inc
    +$666.0KAddedHistory
  4. ZDZiff Davis, Inc.
    +$52.37AddedHistory

Largest weight increases

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

  1. iShares Tr46435U374
    +1.64 pp0.5% → 2.2%
  2. BRK.BBerkshire Hathaway Inc
    +0.89 pp14.7% → 15.6%History
  3. LKQLKQ Corp
    +0.83 pp2.3% → 3.1%History
  4. ZDZiff Davis, Inc.
    +0.30 pp1.3% → 1.6%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. VZVerizon Communications Inc
    −$3.01MSold outHistory
  2. OXYOccidental Petroleum Corp
    −$1.01MReducedHistory
  3. KZRKezar Life Sciences, Inc.
    −$596.1KSold outHistory
  4. Occidental Pete Corp WT Exp 080327674599162
    −$306.2KSold out
  5. CENXCentury Aluminum Co
    −$256.5KReducedHistory

Largest weight decreases

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

  1. OXYOccidental Petroleum Corp
    −2.79 pp7.7% → 4.9%History
  2. VZVerizon Communications Inc
    −2.30 pp2.3% → 0.0%History
  3. BGBunge Global SA
    −1.23 pp6.6% → 5.3%History
  4. SUSuncor Energy Inc
    −1.10 pp5.2% → 4.1%History
  5. CVXChevron Corp
    −0.93 pp4.2% → 3.3%History

Metrics

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

Portfolio value
$133.1M
+$2.28M (+1.7%) vs. prior quarter
Positions
39
−4 vs. prior quarter
Top 10 concentration
60.0%
Top 10 as share of value
Turnover
3.3%
Q2 2026, one quarter
Average holding period
11.9 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 (Q4 2022), so positions held before then are understated.

13F filings by quarter

15 quarters, going back to Q4 2022. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $133.1M (Q2 2026)

Q4 2022: $96.7MQ1 2023: $97.9MQ2 2023: $97.4MQ3 2023: $98.1MQ4 2023: $97.7MQ1 2024: $105.0MQ2 2024: $107.4MQ3 2024: $109.6MQ4 2024: $105.2MQ1 2025: $105.7MQ2 2025: $101.3MQ3 2025: $108.9MQ4 2025: $111.5MQ1 2026: $130.8MQ2 2026: $133.1M
Q4 2022Q2 2026
13F filings of Aldebaran Capital, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 202639$133.1MBRK.BLLYMSFTvs. Q1 2026SEC
Q1 2026May 7, 202643$130.8MBRK.BOXYBGvs. Q4 2025SEC
Q4 2025Feb 12, 202635$111.5MBRK.BLLYMSFTvs. Q3 2025SEC
Q3 2025Nov 10, 202533$108.9MBRK.BMSFTOXYvs. Q2 2025SEC
Q2 2025Aug 12, 202534$101.3MBRK.BMSFTBGvs. Q1 2025SEC
Q1 2025May 13, 202541$105.7MBRK.BOXYBGvs. Q4 2024SEC
Q4 2024Feb 12, 202537$105.2MBRK.BMSFTOXYvs. Q3 2024SEC
Q3 2024Nov 13, 202437$109.6MBRK.BMSFTBGvs. Q2 2024SEC
Q2 2024Aug 13, 202436$107.4MBRK.BOXYBGvs. Q1 2024SEC
Q1 2024May 14, 202433$105.0MBRK.BOXYBGvs. Q4 2023SEC
Q4 2023Feb 13, 202431$97.7MBRK.BBGOXYvs. Q3 2023SEC
Q3 2023Nov 13, 202333$98.1MBRK.BBGOXYvs. Q2 2023SEC
Q2 2023Aug 9, 202333$97.4MBRK.BBGOXYvs. Q1 2023SEC
Q1 2023May 11, 202334$97.9MBRK.BOXYBGvs. Q4 2022SEC
Q4 2022Feb 13, 202334$96.7MBRK.BBGOXY–SEC

13D and 13G filings

Companies where Aldebaran Capital, LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

1 company, largest stake first.

Companies where Aldebaran Capital, LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
CATOCato Corp13G5.97%1.12M sharesNewNov 8, 20241 filingNov 8, 2024SEC

Latest filings

3 filings on file made by Aldebaran Capital, LLC or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Aldebaran Capital, LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
CATOCato CorpNov 8, 20244:32 PM ET13G5.97%1.12M sharesNewSep 30, 2024SEC
RBCNRubicon Technology, Inc.Aug 24, 202213D/AOld format–––SEC
RBCNRubicon Technology, Inc.Jul 12, 202213D/AOld format–––SEC