Institutional Manager · CIK 0001471085
Bronte Capital Management Pty Ltd.
Bondi Junction, C3 · File #028-19143
Latest AUM
$1.00B
Positions
44
Top-10 Concentration
77.9%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | REGENERON PHARMACEUTICALS | REGN | -120,983 | -$93.4M | +$25.9M |
| REDUCE | ISHARES TR | 464287556 | -209,072 | -$35.3M | +$2.1M |
| REDUCE | CAPITAL ONE FINL CORP | 14040H105 | -88,569 | -$21.5M | +$1.3M |
| REDUCE | INTERACTIVE BROKERS GROUP | 45841N107 | -274,877 | -$17.7M | -$22.2M |
| EXITED | ABIVAX SA | 00370M103 | -156,747 | -$14.9M | $0 |
| REDUCE | VANECK ETF TRUST | 83601L104 | -123,103 | -$14.0M | +$467,984 |
| NEW | BBB FOODS INC | TBBB | +394,158 | +$13.2M | $0 |
| EXITED | ISHARES TR | 464287804 | -95,350 | -$12.7M | $0 |
| REDUCE | VANECK ETF TRUST | M8216R110 | -89,556 | -$7.7M | +$119,196 |
| REDUCE | FIRST CTZNS BANCSHARES INC N | 31946M103 | -3,548 | -$7.6M | +$3.0M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202544 pos · $1.00B
- 13F HOLDINGS REPORTQ/E Sep 202530 pos · $1.12B
- 13F HOLDINGS REPORTQ/E Jun 202527 pos · $1.27B
- 13F HOLDINGS REPORTQ/E Mar 202526 pos · $1.23B
- 13F HOLDINGS REPORTQ/E Dec 202424 pos · $1.27B
- 13F HOLDINGS REPORTQ/E Sep 202425 pos · $1.23B
- 13F HOLDINGS REPORTQ/E Jun 202428 pos · $1.28B
- 13F HOLDINGS REPORTQ/E Mar 202430 pos · $1.23B
- 13F HOLDINGS REPORTQ/E Dec 202328 pos · $992.8M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | REGENERON PHARMACEUTICALS | REGN | 176,768 | $136.4M | 13.61% |
| 2 | ALPHABET INC | GOOG | 415,963 | $130.2M | 12.99% |
| 3 | INTERACTIVE BROKERS GROUP | 45841N107 | 1,486,294 | $95.6M | 9.53% |
| 4 | VISA INC-CLASS A SHARES | V | 235,154 | $82.5M | 8.23% |
| 5 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 162,327 | $81.6M | 8.14% |
| 6 | AMAZON COM INC | AMZN | 277,641 | $64.1M | 6.39% |
| 7 | PHILIP MORRIS INTL INC | 718172109 | 398,556 | $63.9M | 6.38% |
| 8 | REGENERON PHARMACEUTICALS | REGN | 59,300 | $45.8M | 4.57% |
| 9 | CAPITAL ONE FINL CORP | 14040H105 | 175,540 | $42.5M | 4.24% |
| 10 | CORTEVA INC | CTVA | 569,033 | $38.1M | 3.80% |
| 11 | FIRST CTZNS BANCSHARES INC N | 31946M103 | 17,072 | $36.6M | 3.65% |
| 12 | VANECK ETF TRUST | M8216R110 | 217,657 | $18.7M | 1.86% |
| 13 | ALNYLAM PHARMACEUTICALS INC | ALNY | 38,864 | $15.5M | 1.54% |
| 14 | SOTERA HEALTH CO | SHC | 874,926 | $15.4M | 1.54% |
| 15 | GRAHAM HLDGS CO | GHM | 13,355 | $14.7M | 1.46% |
| 16 | HERBALIFE NUTRITION LTD | HLF | 1,120,175 | $14.4M | 1.44% |
| 17 | PINTEREST INC | PINS | 512,196 | $13.3M | 1.32% |
| 18 | BBB FOODS INC | TBBB | 394,158 | $13.2M | 1.31% |
| 19 | ISHARES TR | 464287556 | 72,350 | $12.2M | 1.22% |
| 20 | SOCIEDAD QUIMICA Y MINERA DE | 833635105 | 163,457 | $11.2M | 1.12% |