HolderBook

Bronte Capital Management Pty Ltd.

Reported holdings as of Q2 2026, from 31 quarterly filings.

This filer last reported in Q2 2026; the most recent quarter on file across all filers is Q3 2026. Firms that restructure stop filing under one CIK and start under another, so a successor entity may hold these positions now under a similar name.

CIK
1471085
Reported value
$931.1M
Positions
56
Top 10 weight
75.5%
Filed
2026-08-05
Days after quarter end
36

Holdings

Download these holdings as CSV

SecurityTickerValue SharesWeightWeight change Held Change
REGENERON PHARMACEUTICALS CALLREGN$144.2M162,61815.48%-2.98pp23q-5.9%-$9.0M
ALPHABET INCGOOGL$109.1M305,16511.71%+0.85pp31q-20.0%-$27.3M
INTERACTIVE BROKERS GROUP INIBKR$76.9M883,5268.26%-0.25pp31q-31.1%-$34.7M
VISA INC-CLASS A SHARES UNVERIFIED ID$75.5M219,9148.10%+0.94pp12q-8.1%-$6.7M
BERKSHIRE HATHAWAY INC DELBRKB$73.0M145,8477.84%+0.48pp31q-5.9%-$4.6M
AMAZON COM INCAMZN$62.3M261,4336.69%+0.80pp14q-8.5%-$5.8M
PHILIP MORRIS INTL INCPM$54.3M300,1765.83%+0.25pp20q-12.0%-$7.4M
CORTEVA INCCTVA$38.7M456,6564.15%-0.01pp28q-9.2%-$3.9M
CAPITAL ONE FINL CORPCOF$34.8M173,5233.74%+0.35pp5q-7.4%-$2.8M
DISNEY WALT CODIS$34.7M360,2433.72%+1.95pp2q+94.0%+$16.8M
FIRST CTZNS BANCSHARES INC DFCNCA$29.5M14,1793.17%+0.09pp14q-14.0%-$4.8M
BBB FOODS INCTBBB$22.2M533,1512.39%+0.68pp3q+9.4%+$1.9M
AURORA INNOVATION INCAUR$14.9M2,186,8211.60%+0.66pp2q-5.7%-$899.7K
VANECK ETF TRUST UNVERIFIED ID$14.5M191,5801.55%-0.34pp12q-7.9%-$1.2M
SOTERA HEALTH CO UNVERIFIED ID$14.1M797,1381.52%+0.32pp14q-5.5%-$826.7K
NEKTAR THERAPEUTICSNKTR$13.9M198,4341.49%-1.37pp2qHELD
GRAHAM HLDGS COGHC$13.1M11,4541.40%+0.07pp24q-10.4%-$1.5M
ISHARES TRIBB$12.5M65,8071.34%+0.19pp17q-5.0%-$657.7K
BROWN FORMAN CORPBFB$12.4M464,3131.33%-newNEW
ALNYLAM PHARMACEUTICALS INCALNY$10.7M35,3841.14%-0.08pp4q-5.0%-$560.2K
SOCIEDAD QUIMICA Y MINERA DESQM$8.6M116,3080.92%-0.06pp19q-5.0%-$452.5K
GLOBAL E ONLINE LTDGLBE$7.9M227,6440.85%+0.20pp2q+6.8%+$505.0K
NEWMONT CORPNEM$6.5M69,4940.70%-0.11pp5q-7.8%-$552.4K
BARRICK MNG CORPB$5.4M146,3590.58%-0.06pp5q-7.8%-$454.8K
LIVERAMP HLDGS INCRAMP$4.8M128,3480.52%-0.07pp11q-42.5%-$3.6M
HERBALIFE LTDHLF$4.3M323,3860.46%-0.91pp31q-65.6%-$8.1M
REVOLUTION MEDICINES INCRVMD$3.5M18,7800.38%-newNEW
TURNING PT BRANDS INCTPB$3.5M40,7210.37%flat3q-5.0%-$181.3K
ISHARES TRIJR$3.4M23,0040.37%-newNEW
BATH & BODY WORKS INCBBWI$3.3M143,8000.36%+0.07pp20q-7.5%-$270.8K
MONDELEZ INTL INCMDLZ$3.1M53,2340.33%+0.01pp21q-4.9%-$158.5K
RISKIFIED LTDRSKD$3.0M588,2510.32%+0.13pp16q+20.4%+$502.8K
BROWN FORMAN CORPBFA$2.6M95,3650.28%+0.01pp2q-5.0%-$136.5K
TYLER TECHNOLOGIES INCTYL$2.4M8,3020.26%-newNEW
VANECK ETF TRUST UNVERIFIED ID$2.4M24,5680.26%-0.06pp12q-7.5%-$196.3K
PAYLOCITY HLDG CORPPCTY$1.9M17,8740.20%-0.19pp2q-51.2%-$2.0M
NICE LTDNICE$1.5M16,3960.16%-0.03pp3q-4.1%-$63.1K
UNIVERSAL DISPLAY CORPOLED$889.2K10,2690.10%-0.01pp3q-7.7%-$73.8K
VERISK ANALYTICS INCVRSK$481.5K2,6820.05%flat2q-7.6%-$39.5K
ENOVIX CORPORATIONENVX$92.9K41,7650.01%flat4q+261.6%+$67.2K
TREACE MED CONCEPTS INCTMCI$62.0K15,5770.01%-newNEW
FATE THERAPEUTICS INCFATE$58.7K21,7400.01%flat3q-4.9%-$3.0K
AN2 THERAPEUTICS INCANTX$52.7K10,8950.01%-newNEW
C4 THERAPEUTICS INCCCCC$48.3K10,3490.01%flat3q+3.1%+$1.5K
ALX ONCOLOGY HLDGS INCALXO$37.5K18,0950.00%-newNEW
BLEND LABS INCBLND$32.9K19,2470.00%-newNEW
PEPGEN INCPEPG$32.0K17,7760.00%-newNEW
COMMERCE.COM INCCMRC$30.4K10,2780.00%-newNEW
PACIFIC BIOSCIENCES CALIF INPACB$30.0K17,8810.00%-newNEW
ACUMEN PHARMACEUTICALS INCABOS$28.6K10,7160.00%-newNEW
SEER INCSEER$25.1K15,1090.00%-newNEW
ALECTOR INCALEC$23.6K11,7580.00%flat3q-39.0%-$15.1K
NOVABRIDGE BIOSCIENCESNBP$21.8K11,1920.00%-newNEW
COHERUS ONCOLOGY INCCHRS$21.4K15,2620.00%flat3q-20.8%-$5.6K
MILESTONE PHARMACEUTICALS INMIST$19.3K14,3900.00%flat3q+38.2%+$5.3K
GOSSAMER BIO INCGOSS$11.2K67,7540.00%-newNEW

By sector

Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.

Biotech & Pharma 18.5%Software & IT Services 15.4%Retail & Consumer 9.4%Capital Markets 8.3%Food, Drink & Tobacco 8.1%Insurance 7.8%Banks & Lending 6.9%Agriculture 4.2%Telecom & Media 3.7%Mining & Metals 2.2%Business Services 1.7%Other sectors 0.6%Not classified 13.1%
 
SectorValueShare
Biotech & Pharma$172.6M18.5%
Software & IT Services$143.0M15.4%
Retail & Consumer$87.9M9.4%
Capital Markets$76.9M8.3%
Food, Drink & Tobacco$75.8M8.1%
Insurance$73.0M7.8%
Banks & Lending$64.3M6.9%
Agriculture$38.7M4.2%
Telecom & Media$34.7M3.7%
Mining & Metals$20.5M2.2%
Business Services$16.0M1.7%
Other sectors$5.3M0.6%
Not classified$122.4M13.1%

What the disclosed book did

This is not the fund's return. A 13F shows long US equity positions only, so shorts, bonds, foreign listings, private holdings and cash are all invisible here. What this measures is the quarter's change in value of the positions this manager disclosed, had they been left untouched - the return a reader following the filing would have earned.

QuarterBookMarket DifferencePriced
Q2 2026+7.9%+14.8%-7.0%81%
Q1 2026-3.0%-4.6%+1.6%83%
Q4 2025+11.1%+2.4%+8.8%78%
Q3 2025+8.2%+7.8%+0.3%79%
Q2 2025+6.0%+10.5%-4.5%77%
Q1 2025-2.6%-4.6%+1.9%78%
Q4 2024+1.3%+2.1%-0.8%91%
Q3 2024+2.8%+5.4%-2.6%88%

Market is SPY over the same two quarter ends, priced the same way as everything else here - the median across every filer reporting it. It is a large-cap US proxy, so a manager holding small caps or biotech will beat or trail it for reasons that are not skill. Prices are quarter-end to quarter-end and say nothing about the path in between, or about trades opened and closed inside a quarter.

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$931.1M56157331075.5%36
Q1 2026$1.0B519625174.5%27
Q4 2025$1.0B4316218381.5%34
Q3 2025$1.1B304026176.2%36
Q2 2025$1.3B273213278.7%43
Q1 2025$1.2B262321079.4%44
Q4 2024$1.3B240321181.6%41
Q3 2024$1.2B25048379.4%36
Q2 2024$1.3B280424276.6%38
Q1 2024$1.2B3021013272.0%43
Q4 2023$1.1B303917173.9%38
Q3 2023$992.8M284145875.4%37
Q2 2023$1.0B323261170.6%39
Q1 2023$861.9M304620178.7%42
Q4 2022$792.6M270422179.0%45
Q3 2022$802.9M281811579.7%34
Q2 2022$872.5M322177172.8%39
Q1 2022$1.2B315185283.9%43
Q4 2021$1.5B282812187.3%41
Q3 2021$1.4B27662088.7%40
Q2 2021$1.4B21443091.0%40
Q1 2021$881.6M17276089.3%13
Q4 2020$632.9M15217090.7%34
Q3 2020$567.9M13443296.1%77
Q2 2020$570.1M11073198.7%42
Q1 2020$610.8M12470197.8%38
Q4 2019$515.5M90613100.0%29
Q3 2019$361.6M12181097.9%39
Q2 2019$280.6M11322399.9%44
Q1 2019$266.5M11250199.6%40
Q4 2018$250.7M100000100.0%44

Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.

Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.

Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.