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Bronte Capital Management Pty Ltd.

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13F filer, CIK 1471085, Bondi Junction, Australia

Bronte Capital Management Pty Ltd. reported $1,116,770,535 across 30 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-11-05. Its ten largest share positions make up 76.65% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001471085-25-000008

Period
2025-09-30
Reported value
$1.12B
Holdings
30
Top 10 weight
76.65%
New
4
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ALNYnew+34,974$17.8M
ABVXnew+156,747$14.9M
ENVXnew+11,550$115K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
IJRreduced-460,595-$61.2M
IBKRreduced-643,478-$49.5M
BRK-Breduced-45,576-$25.6M
GOOGLreduced-88,909-$24.2M
AMZNreduced-96,891-$23.8M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001471085-25-000008, largest first. % of portfolio is the value over $1,110,785,787, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
IBKRINTERACTIVE BROKERS GROUP INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 833,627 shares; 2024Q4: 595,044 shares; 2025Q1: 526,584 shares; 2025Q2: 2,404,649 shares; 2025Q3: 1,761,171 shares 1,761,171$135M12.19%-643,478Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 886,952 shares; 2024Q4: 533,955 shares; 2025Q1: 529,571 shares; 2025Q2: 516,048 shares; 2025Q3: 427,139 shares 427,139$116M10.45%-88,909Timeline
REGNREGENERON PHARMACEUTICALSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 137,042 shares; 2024Q4: 152,783 shares; 2025Q1: 154,693 shares; 2025Q2: 187,870 shares; 2025Q3: 180,283 shares 180,283$113M10.2%-7,587Timeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 331,254 shares; 2024Q4: 219,835 shares; 2025Q1: 218,030 shares; 2025Q2: 220,304 shares; 2025Q3: 174,728 shares 174,728$98.2M8.84%-45,576Timeline
VISA INC-CLASS A SHARESVISA INC-CLASS A SHARESQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 284,352 shares; 2024Q4: 237,259 shares; 2025Q1: 235,302 shares; 2025Q2: 269,252 shares; 2025Q3: 235,851 shares 235,851$90M8.1%-33,401
PMPHILIP MORRIS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 549,299 shares; 2024Q4: 496,648 shares; 2025Q1: 518,385 shares; 2025Q2: 541,101 shares; 2025Q3: 417,650 shares 417,650$75.7M6.82%-123,451Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 382,300 shares; 2024Q4: 342,812 shares; 2025Q1: 339,998 shares; 2025Q2: 388,156 shares; 2025Q3: 291,265 shares 291,265$71.5M6.43%-96,891Timeline
COFCAPITAL ONE FINL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 346,950 shares; 2025Q3: 264,109 shares 264,109$62.7M5.65%-82,841Timeline
IBBISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 272,955 shares; 2024Q4: 264,586 shares; 2025Q1: 262,399 shares; 2025Q2: 295,346 shares; 2025Q3: 281,422 shares 281,422$45.4M4.09%-13,924Timeline
CTVACORTEVA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 594,420 shares; 2024Q4: 576,194 shares; 2025Q1: 571,432 shares; 2025Q2: 647,820 shares; 2025Q3: 571,018 shares 571,018$43.2M3.89%-76,802Timeline
FCNCAFIRST CTZNS BANCSHARES INC DQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 24,547 shares; 2024Q4: 21,487 shares; 2025Q1: 21,311 shares; 2025Q2: 24,198 shares; 2025Q3: 20,620 shares 20,620$41.2M3.71%-3,578Timeline
VANECK ETF TRUSTVANECK ETF TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 287,826 shares; 2024Q4: 277,406 shares; 2025Q1: 275,105 shares; 2025Q2: 314,057 shares; 2025Q3: 307,213 shares 307,213$26.2M2.36%-6,844
PINSPINTEREST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,116,985 shares; 2024Q4: 849,920 shares; 2025Q1: 842,964 shares; 2025Q2: 955,830 shares; 2025Q3: 649,282 shares 649,282$23.3M2.1%-306,548Timeline
SBHSALLY BEAUTY HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 1,122,066 shares; 2025Q2: 1,281,935 shares; 2025Q3: 1,081,195 shares 1,081,195$19.7M1.77%-200,740Timeline
ALNYALNYLAM PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 34,974 shares 34,974$17.8M1.61%newTimeline
GHCGRAHAM HLDGS COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 19,457 shares; 2024Q4: 16,376 shares; 2025Q1: 16,242 shares; 2025Q2: 18,544 shares; 2025Q3: 13,397 shares 13,397$17.6M1.59%-5,147Timeline
VANECK ETF TRUSTVANECK ETF TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 74,766 shares; 2024Q4: 135,441 shares; 2025Q1: 134,320 shares; 2025Q2: 153,737 shares; 2025Q3: 150,866 shares 150,866$16.7M1.5%-2,871
SOTERA HEALTH COSOTERA HEALTH COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 876,381 shares; 2024Q4: 799,966 shares; 2025Q1: 793,382 shares; 2025Q2: 906,035 shares; 2025Q3: 885,462 shares 885,462$15.6M1.4%-20,573
ABVXABIVAX SAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 156,747 shares 156,747$14.9M1.35%newTimeline
HLFHERBALIFE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,653,914 shares; 2024Q4: 1,599,168 shares; 2025Q1: 2,560,075 shares; 2025Q2: 2,223,783 shares; 2025Q3: 1,358,989 shares 1,358,989$12.8M1.15%-864,794Timeline
IJRISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 906,177 shares; 2024Q4: 1,413,412 shares; 2025Q1: 1,298,378 shares; 2025Q2: 555,945 shares; 2025Q3: 95,350 shares 95,350$12.7M1.14%-460,595Timeline
SQMSOCIEDAD QUIMICA Y MINERA DEQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 139,477 shares; 2024Q4: 135,201 shares; 2025Q1: 134,083 shares; 2025Q2: 169,567 shares; 2025Q3: 164,587 shares 164,587$7.9M0.71%-4,980Timeline
BBARRICK MNG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 228,593 shares; 2025Q3: 213,069 shares 213,069$7.8M0.7%-15,524Timeline
NEMNEWMONT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 83,700 shares; 2025Q3: 78,015 shares 78,015$7.35M0.66%-5,685Timeline
RAMPLIVERAMP HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 254,074 shares; 2024Q4: 246,272 shares; 2025Q1: 244,236 shares; 2025Q2: 279,178 shares; 2025Q3: 231,395 shares 231,395$7.02M0.63%-47,783Timeline
MDLZMONDELEZ INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 61,888 shares; 2024Q4: 58,445 shares; 2025Q1: 57,963 shares; 2025Q2: 66,336 shares; 2025Q3: 65,871 shares 65,871$4.6M0.41%-465Timeline
BBWIBATH & BODY WORKS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 132,323 shares; 2024Q4: 112,578 shares; 2025Q1: 111,649 shares; 2025Q2: 127,776 shares; 2025Q3: 114,801 shares 114,801$3.3M0.3%-12,975Timeline
RSKDRISKIFIED LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 484,103 shares; 2024Q4: 469,260 shares; 2025Q1: 465,381 shares; 2025Q2: 531,929 shares; 2025Q3: 513,696 shares 513,696$2.68M0.24%-18,233Timeline
ENVXENOVIX CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 11,550 shares 11,550$115K0.01%newTimeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
IWOISHARES TR RUS 2000 GRW ETFcall18,700$5.98Mnew

Sold out in Q3 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
GLOBAL BLUE GROUP HOLDING A…GLOBAL BLUE GROUP HOLDING AG ORD …100,917$852Kshares

How Q3 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 0001471085-25-000008 base2025-11-05acceptance time not in the bulk data set