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Livermore
Livermore
ZHEN

Bronte Capital Management Pty Ltd.

SEC CIK
0001471085
Latest filing
Aug 4, 2026

The latest 13F from Bronte Capital Management Pty Ltd. covers Q2 2026 (filed Aug 4, 2026): 56 long positions worth $888.3M. The top 10 holdings make up 74.4% of the portfolio, and the largest is Alphabet Inc. (GOOGL) at 12.3%. Livermore has 23 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
15
Est. +$22.1M
Added
8
Est. +$19.8M
Reduced
33
Est. −$126.2M
Sold out
10
Est. −$38.0M

Top 5 holdings

Share of this quarter's portfolio value

  1. GOOGLAlphabet Inc.
    12.3%$109.1MHistory
  2. REGNRegeneron Pharmaceuticals, Inc.
    11.4%$101.4MHistory
  3. IBKRInteractive Brokers Group, Inc.
    8.7%$76.9MHistory
  4. Visa Inc-Class A Shares83601L105
    8.5%$75.5M
  5. BRK.BBerkshire Hathaway Inc
    8.2%$73.0MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. DISWalt Disney Co
    +$16.8MAddedHistory
  2. BF.BBrown Forman Corp
    +$12.4MNewHistory
  3. RVMDRevolution Medicines, Inc.
    +$3.52MNewHistory
  4. iShares Core S&P Small Cap ETF464287804
    +$3.41MNew
  5. TYLTyler Technologies Inc
    +$2.43MNewHistory

Largest weight increases

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

  1. DISWalt Disney Co
    +2.00 pp1.9% → 3.9%History
  2. BF.BBrown Forman Corp
    +1.39 pp0.0% → 1.4%History
  3. TBBBBBB Foods Inc
    +0.67 pp1.8% → 2.5%History
  4. RVMDRevolution Medicines, Inc.
    +0.40 pp0.0% → 0.4%History
  5. iShares Core S&P Small Cap ETF464287804
    +0.38 pp0.0% → 0.4%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. IBKRInteractive Brokers Group, Inc.
    −$34.7MReducedHistory
  2. GOOGLAlphabet Inc.
    −$27.3MReducedHistory
  3. Brown Forman Corp115637900
    −$13.1MSold out
  4. iShares Russell 2000 Growth ETF464287648
    −$11.8MSold out
  5. HLFHerbalife Ltd.
    −$8.11MReducedHistory

Largest weight decreases

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

  1. REGNRegeneron Pharmaceuticals, Inc.
    −2.77 pp14.2% → 11.4%History
  2. Brown Forman Corp115637900
    −1.39 pp1.4% → 0.0%
  3. iShares Russell 2000 Growth ETF464287648
    −1.25 pp1.3% → 0.0%
  4. HLFHerbalife Ltd.
    −0.99 pp1.5% → 0.5%History
  5. PINSPinterest, Inc.
    −0.84 pp0.8% → 0.0%History

Metrics

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

Portfolio value
$888.3M
−$52.6M (−5.6%) vs. prior quarter
Positions
56
+5 vs. prior quarter
Top 10 concentration
74.4%
Top 10 as share of value
Turnover
4.6%
Q2 2026, one quarter
Average holding period
15.7 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 $1.28B (Q2 2024)

Q1 2021: $571.2MQ2 2021: $666.4MQ3 2021: $693.7MQ4 2021: $770.5MQ1 2022: $708.6MQ2 2022: $828.7MQ3 2022: $802.9MQ4 2022: $792.6MQ1 2023: $861.9MQ2 2023: $1.04BQ3 2023: $992.8MQ4 2023: $1.07BQ1 2024: $1.17BQ2 2024: $1.28BQ3 2024: $1.23BQ4 2024: $1.27BQ1 2025: $1.23BQ2 2025: $1.27BQ3 2025: $1.11BQ4 2025: $956.8MQ1 2026: $940.9MQ2 2026: $888.3M
Q1 2021Q2 2026
13F filings of Bronte Capital Management Pty Ltd. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 4, 202656$888.3MGOOGLREGNIBKRvs. Q1 2026SEC
Q1 2026Apr 27, 202651$940.9MREGNGOOGLIBKRvs. Q4 2025SEC
Q4 2025Feb 3, 202643$956.8MREGNGOOGLIBKRvs. Q3 2025SEC
Q3 2025Nov 5, 202529$1.11BIBKRGOOGLREGNvs. Q2 2025SEC
Q2 2025Aug 12, 202527$1.27BIBKRBRK.BPMvs. Q1 2025SEC
Q1 2025May 14, 202526$1.23BiShares Core S&P Small Cap ETFBRK.BREGNvs. Q4 2024SEC
Q4 2024Feb 10, 202524$1.27BiShares Core S&P Small Cap ETFREGNIBKRvs. Q3 2024SEC
Q3 2024Nov 5, 202425$1.23BBRK.BGOOGLREGNvs. Q2 2024SEC
Q2 2024Aug 7, 202428$1.28BGOOGLREGNBRK.Bvs. Q1 2024SEC
Q1 2024May 13, 202429$1.17BGOOGLBRK.BREGNvs. Q4 2023SEC
Q4 2023Feb 7, 202429$1.07BGOOGLBRK.BREGNvs. Q3 2023SEC
Q3 2023Nov 6, 202328$992.8MBRK.BGOOGLREGNvs. Q2 2023SEC
Q2 2023Aug 8, 202332$1.04BBRK.BGOOGLREGNvs. Q1 2023SEC
Q1 2023May 12, 202330$861.9MBRK.BREGNGOOGLvs. Q4 2022SEC
Q4 2022Feb 14, 202327$792.6MBRK.BREGNGOOGLvs. Q3 2022SEC
Q3 2022Nov 3, 202228$802.9MBRK.BGOOGLREGNvs. Q2 2022SEC
Q2 2022Aug 8, 2022Amended30$828.7MGOOGLBRK.BREGNvs. Q1 2022SEC
Q1 2022May 13, 202228$708.6MGOOGLREGNHLFvs. Q4 2021SEC
Q4 2021Feb 10, 202224$770.5MGOOGLBRK.BHLFvs. Q3 2021SEC
Q3 2021Nov 9, 202123$693.7MGOOGLBRK.BHLFvs. Q2 2021SEC
Q2 2021Aug 9, 202117$666.4MGOOGLHLFBRK.Bvs. Q1 2021SEC
Q1 2021Apr 13, 202114$571.2MBRK.BGOOGLHLF–SEC

13D and 13G filings

Companies where Bronte Capital Management Pty Ltd. reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Bronte Capital Management Pty Ltd. does not currently report owning 5% or more of any company.

Latest filings

3 filings on file made by Bronte Capital Management Pty Ltd. or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Bronte Capital Management Pty Ltd.
CompanyFiled (ET)FormStakeChangeEvent dateFiling
HIBBHibbett IncAug 5, 202413D/AOld format–––SEC
HIBBHibbett IncJun 13, 202413DOld format–––SEC
HIBBHibbett IncFeb 13, 20248:58 PM ET13G5.10%604.2K sharesNewDec 31, 2023SEC