Bronte Capital Management Pty Ltd.
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 27, 2026), Bronte Capital Management Pty Ltd. reported 51 stock positions worth $940.9 million. Its top holding was Regeneron Pharmaceuticals (REGN) at 14.2% of the portfolio, followed by Alphabet Class A (GOOGL, 11.7%) and Interactive Brokers Gro Class A (IBKR, 9.1%). Compared with Q4 2025, it opened 9 new positions, sold out of 1, added to 6 and reduced 25. The biggest buy was a new position in Walt Disney (DIS) and the biggest sale Alphabet Class A (GOOGL, shares −8%).
- Most Recent 13F
- Q2 2026
- Location
- Bondi Junction, C3
- CIK
- 0001471085
- Portfolio Value
- $940.9M (Q1 2026)
- SEC Filing
- 0001471085-26-000002 ↗ filed Apr 27, 2026
Holdings Value
Holdings 51 stocks · $940.9M
| REGN Regeneron Pharmaceuticals | 14.19% | 172,787 | $133.5M | Reduce -2.3% |
| GOOGL Alphabet Inc. Class A | 11.66% | 381,490 | $109.7M | Reduce -8.3% |
| IBKR Interactive Brokers Gro Class A | 9.14% | 1,281,731 | $86.0M | Reduce -13.8% |
| BRK.B Berkshire Hathaway Inc. Class B | 7.90% | 155,063 | $74.3M | Reduce -4.5% |
| VISA INC-CLASS A SHARES | 7.69% | 239,370 | $72.3M | Add +1.8% |
| AMZN Amazon.com Inc. | 6.32% | 285,739 | $59.5M | Add +2.9% |
| PM Philip Morris International | 5.99% | 341,098 | $56.4M | Reduce -14.4% |
| CTVA Corteva Inc. | 4.47% | 502,790 | $42.1M | Reduce -11.6% |
| COF Capital One Financial Corp. | 3.63% | 187,369 | $34.2M | Add +6.7% |
| FCNCA First Citizens Bcshs Class A | 3.30% | 16,492 | $31.1M | Reduce -3.4% |
| VANECK ETF TRUST | 2.03% | 208,088 | $19.1M | Reduce -4.4% |
| DIS The Walt Disney Co. filed as DISNEY WALT CO | 1.90% | 185,677 | $17.9M | New |
| TBBB BBB Foods Inc. Class A | 1.83% | 487,550 | $17.2M | Add +23.7% |
| NKTR Nektar Therapeutics | 1.52% | 198,256 | $14.3M | New |
| HLF Herbalife Ltd. | 1.47% | 939,926 | $13.8M | Reduce -16.1% |
| GHC Graham Holdings Co. Class B | 1.44% | 12,785 | $13.5M | Reduce -4.3% |
| BROWN FORMAN CORP | 1.39% | 493,902 | $13.1M | New |
| ALNY Alnylam Pharmaceuticals Inc. | 1.31% | 37,245 | $12.3M | Reduce -4.2% |
| SOTERA HEALTH CO | 1.29% | 843,710 | $12.1M | Reduce -3.6% |
| IWO iShares Russell 2000 Growth | 1.25% | 37,542 | $11.8M | New |
| IBB iShares Biotechnology ETF | 1.24% | 69,265 | $11.7M | Reduce -4.3% |
| SQM Quimica Y Minera Chil-SP ADR filed as SOCIEDAD QUIMICA Y MINERA DE | 1.05% | 122,419 | $9.9M | Reduce -25.1% |
| AUR Aurora Innovation Inc. | 1.02% | 2,318,748 | $9.6M | New |
| NEM Newmont Corp. | 0.87% | 75,408 | $8.2M | Reduce -3.1% |
| PINS Pinterest Inc. Class A | 0.84% | 430,950 | $7.9M | Reduce -15.9% |
| GLBE Global-E Online Ltd. | 0.70% | 213,102 | $6.6M | New |
| B Barrick Mining Corp. | 0.69% | 158,741 | $6.5M | Reduce -3.7% |
| RAMP Liveramp Holdings Inc. | 0.63% | 223,215 | $5.9M | Reduce -3.8% |
| PCTY Paylocity Holding Corp. | 0.42% | 36,611 | $4.0M | New |
| TPB Turning Point Brands Inc. | 0.40% | 42,859 | $3.7M | Add +75.8% |
| MDLZ Mondelez International Inc. Class A | 0.34% | 55,974 | $3.2M | Reduce -13.3% |
| VANECK ETF TRUST | 0.34% | 26,566 | $3.2M | Reduce -4.3% |
| SBH Sally Beauty Holdings Inc. | 0.32% | 220,737 | $3.1M | Reduce -70.1% |
| BBWI Bath & Body Works Inc. | 0.31% | 155,508 | $2.9M | Reduce -38.9% |
| BF.A Brown-Forman Corp. Class A | 0.29% | 100,354 | $2.7M | New |
| JRVR James River Group Holdings I | 0.23% | 338,961 | $2.1M | Add +174.3% |
| RSKD Riskified Ltd. Class A | 0.20% | 488,481 | $1.9M | Reduce -4.9% |
| NICE Nice Ltd. - Spon ADR | 0.20% | 17,091 | $1.9M | Reduce -15.9% |
| OLED Universal Display Corp. | 0.11% | 11,121 | $1.0M | Reduce -4.6% |
| VRSK Verisk Analytics Inc. | 0.06% | 2,902 | $551K | New |
| ENVX Enovix Corp. | 0.01% | 11,550 | $60K | No change |
| ALEC Alector Inc. | 0.00% | 19,282 | $41K | No change |
| CHRS Coherus Oncology Inc. | 0.00% | 19,282 | $33K | No change |
| CRBU Caribou Biosciences Inc. | 0.00% | 15,627 | $30K | No change |
| FATE Fate Therapeutics Inc. | 0.00% | 22,853 | $27K | No change |
| CCCC C4 Therapeutics Inc. | 0.00% | 10,033 | $26K | No change |
| PLRX Pliant Therapeutics Inc. | 0.00% | 18,613 | $23K | No change |
| IVVD Invivyd Inc. | 0.00% | 11,012 | $14K | No change |
| MIST Milestone Pharmaceuticals Inc. | 0.00% | 10,414 | $12K | No change |
| RANI Rani Therapeutics Holdings Class A | 0.00% | 14,868 | $11K | No change |
| GUTS Fractyl Health Inc. | 0.00% | 16,905 | $8K | No change |
Options reported separately and not counted above: REGN calls ($53.0M), NKTR calls ($14.6M), IWO calls ($1.4M).
Portfolio Sells Q4 2025 → Q1 2026
| GOOGL Alphabet Inc. Class A | Reduce -8.3% | 11.66% | −1.95 |
| IBKR Interactive Brokers Gro Class A | Reduce -13.8% | 9.14% | −0.85 |
| SBH Sally Beauty Holdings Inc. | Reduce -70.1% | 0.32% | −0.77 |
| PM Philip Morris International | Reduce -14.4% | 5.99% | −0.69 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -4.5% | 7.90% | −0.63 |
| PINS Pinterest Inc. Class A | Reduce -15.9% | 0.84% | −0.55 |
| FCNCA First Citizens Bcshs Class A | Reduce -3.4% | 3.30% | −0.53 |
| SOTERA HEALTH CO | Reduce -3.6% | 1.29% | −0.33 |
| ALNY Alnylam Pharmaceuticals Inc. | Reduce -4.2% | 1.31% | −0.31 |
| FICO Fair Isaac Corp. | Sold out | 0.00% | −0.28 |
| BBWI Bath & Body Works Inc. | Reduce -38.9% | 0.31% | −0.23 |
| SQM Quimica Y Minera Chil-SP ADR | Reduce -25.1% | 1.05% | −0.12 |
| GHC Graham Holdings Co. Class B | Reduce -4.3% | 1.44% | −0.10 |
| RAMP Liveramp Holdings Inc. | Reduce -3.8% | 0.63% | −0.08 |
| REGN Regeneron Pharmaceuticals | Reduce -2.3% | 14.19% | −0.07 |
| RSKD Riskified Ltd. Class A | Reduce -4.9% | 0.20% | −0.06 |
| B Barrick Mining Corp. | Reduce -3.7% | 0.69% | −0.06 |
| NICE Nice Ltd. - Spon ADR | Reduce -15.9% | 0.20% | −0.04 |
| HLF Herbalife Ltd. | Reduce -16.1% | 1.47% | −0.04 |
| OLED Universal Display Corp. | Reduce -4.6% | 0.11% | −0.03 |
| IBB iShares Biotechnology ETF | Reduce -4.3% | 1.24% | −0.03 |
| MDLZ Mondelez International Inc. Class A | Reduce -13.3% | 0.34% | −0.02 |
| VANECK ETF TRUST | Reduce -4.3% | 0.34% | +0.01 |
| NEM Newmont Corp. | Reduce -3.1% | 0.87% | +0.06 |
| VANECK ETF TRUST | Reduce -4.4% | 2.03% | +0.08 |
| CTVA Corteva Inc. | Reduce -11.6% | 4.47% | +0.49 |
Portfolio Buys Q4 2025 → Q1 2026
| DIS The Walt Disney Co. | New | 1.90% | +1.90 |
| NKTR Nektar Therapeutics | New | 1.52% | +1.52 |
| BROWN FORMAN CORP | New | 1.39% | +1.39 |
| IWO iShares Russell 2000 Growth | New | 1.25% | +1.25 |
| AUR Aurora Innovation Inc. | New | 1.02% | +1.02 |
| GLBE Global-E Online Ltd. | New | 0.70% | +0.70 |
| TBBB BBB Foods Inc. Class A | Add +23.7% | 1.83% | +0.46 |
| PCTY Paylocity Holding Corp. | New | 0.42% | +0.42 |
| BF.A Brown-Forman Corp. Class A | New | 0.29% | +0.29 |
| JRVR James River Group Holdings I | Add +174.3% | 0.23% | +0.14 |
| TPB Turning Point Brands Inc. | Add +75.8% | 0.40% | +0.12 |
| VRSK Verisk Analytics Inc. | New | 0.06% | +0.06 |
| AMZN Amazon.com Inc. | Add +2.9% | 6.32% | −0.37 |
| COF Capital One Financial Corp. | Add +6.7% | 3.63% | −0.81 |
| VISA INC-CLASS A SHARES | Add +1.8% | 7.69% | −0.93 |
Options Activity Q4 2025 → Q1 2026
| REGN Regeneron Pharmaceuticals | call | Add +15.7% | 68,600 | $53.0M |
| NKTR Nektar Therapeutics | call | New | 202,500 | $14.6M |
| IWO iShares Russell 2000 Growth | call | New | 4,400 | $1.4M |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 56 | $888.3M | GOOGL, REGN, IBKR, VISA INC-CLASS A SHARES, BRK.B |
| Q1 2026 | 51 | $940.9M | REGN, GOOGL, IBKR, BRK.B, VISA INC-CLASS A SHARES |
| Q4 2025 | 43 | $956.8M | REGN, GOOGL, IBKR, VISA INC-CLASS A SHARES, BRK.B |
| Q3 2025 | 29 | $1.1B | IBKR, GOOGL, REGN, BRK.B, VISA INC-CLASS A SHARES |
| Q2 2025 | 27 | $1.3B | IBKR, BRK.B, PM, REGN, VISA INC-CLASS A SHARES |
| Q1 2025 | 26 | $1.2B | IJR, BRK.B, REGN, IBKR, PM |
| Q4 2024 | 24 | $1.3B | IJR, REGN, IBKR, GOOGL, BRK.B |
| Q3 2024 | 25 | $1.2B | BRK.B, GOOGL, REGN, IBKR, IJR |
| Q2 2024 | 28 | $1.3B | GOOGL, REGN, BRK.B, IBKR, IJR |
| Q1 2024 | 29 | $1.2B | GOOGL, BRK.B, REGN, IBKR, VISA INC-CLASS A SHARES |