Baron Capital (BAMCO)
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 14, 2025), Ron Baron's Baron Capital (BAMCO) reported 330 stock positions worth $37.7 billion. Its top holding was Tesla (TSLA) at 14.1% of the portfolio, followed by Arch Capital (ACGL, 4.5%) and Costar (CSGP, 4.3%). Compared with Q2 2025, it opened 37 new positions, sold out of 13, added to 135 and reduced 115. The biggest buy was Red Rock Resorts Class A (RRR, shares −0%) and the biggest sale Factset Research Systems (FDS, shares −19%).
- Most Recent 13F
- Q2 2026
- Notable People
- Ron Baron
- Location
- NEW YORK, NY
- CIK
- 0001017918
- Portfolio Value
- $37.7B (Q3 2025)
- SEC Filing
- 0001017918-25-000059 ↗ filed Nov 14, 2025
Holdings Value
Holdings 330 stocks · $37.7B
| TSLA Tesla Inc. | 14.09% | 11,947,614 | $5.3B | Reduce -8.2% |
| ACGL Arch Capital Group Ltd. | 4.51% | 18,759,655 | $1.7B | Reduce -4.9% |
| CSGP Costar Group Inc. | 4.31% | 19,255,566 | $1.6B | Reduce -2.2% |
| MSCI MSCI Inc. | 3.60% | 2,394,117 | $1.4B | Add +10.3% |
| IDXX Idexx Laboratories Inc. | 3.19% | 1,884,129 | $1.2B | Reduce -7.3% |
| GWRE Guidewire Software Inc. | 3.15% | 5,168,851 | $1.2B | Reduce -7.5% |
| IT Gartner Inc. | 3.01% | 4,322,113 | $1.1B | Add +18.3% |
| H Hyatt Hotels Corp. Class A | 2.30% | 6,116,673 | $868.1M | Add +2.7% |
| MTN Vail Resorts Inc. | 2.26% | 5,702,692 | $853.0M | Add +4.2% |
| KNSL Kinsale Capital Group Inc. | 2.02% | 1,788,590 | $760.6M | Add +1.4% |
| RRR Red Rock Resorts Inc. Class A | 1.99% | 12,269,167 | $749.2M | Add +0.0% |
| SPOT Spotify Technology SA | 1.83% | 988,695 | $690.1M | Add +5.5% |
| SCHW Schwab (charles) Corp. | 1.81% | 7,131,959 | $680.9M | Add +1.1% |
| CHH Choice Hotels Intl Inc. | 1.52% | 5,359,896 | $573.0M | Add +7.4% |
| NVDA Nvidia Corp. | 1.48% | 2,985,302 | $557.0M | Add +3.3% |
| FDS Factset Research Systems Inc. | 1.38% | 1,819,059 | $521.1M | Reduce -18.5% |
| FIGS Figs Inc. Class A | 1.06% | 59,934,448 | $401.0M | Reduce -0.1% |
| PRI Primerica Inc. | 1.04% | 1,408,241 | $390.9M | Reduce -11.4% |
| SHOP Shopify Inc. Class A | 0.90% | 2,285,499 | $339.6M | Reduce -14.2% |
| MORN Morningstar Inc. | 0.87% | 1,414,305 | $328.1M | Add +9.2% |
| IBKR Interactive Brokers Gro Class A | 0.84% | 4,609,768 | $317.2M | Add +9.8% |
| VRT Vertiv Holdings Co. Class A | 0.83% | 2,070,643 | $312.4M | Reduce -19.4% |
| VRSK Verisk Analytics Inc. | 0.81% | 1,221,015 | $307.1M | Add +0.6% |
| BIRK Birkenstock Holding PLC | 0.76% | 6,353,801 | $287.5M | Add +41.9% |
| MTD Mettler-Toledo International | 0.69% | 211,352 | $259.5M | Reduce -11.5% |
| SITE Siteone Landscape Supply Inc. | 0.67% | 1,966,876 | $253.3M | Add +1.3% |
| GLPI Gaming and Leisure Propertie | 0.64% | 5,143,996 | $239.8M | Reduce -30.2% |
| AMZN Amazon.com Inc. | 0.63% | 1,078,312 | $236.8M | Reduce 0.0% |
| APH Amphenol Corp. Class A | 0.62% | 1,889,530 | $233.8M | Add +0.0% |
| HLI Houlihan Lokey Inc. | 0.62% | 1,130,190 | $232.1M | Reduce -1.4% |
| CBRE CBRE Group Inc. Class A | 0.57% | 1,362,985 | $214.8M | Reduce -2.8% |
| WELL Welltower Inc. | 0.56% | 1,186,934 | $211.4M | Reduce -3.4% |
| ONON On Holding AG Class A filed as ON HLDG AG | 0.53% | 4,746,553 | $201.0M | Add +14.7% |
| META Meta Platforms Inc. Class A | 0.52% | 265,135 | $194.7M | Reduce -2.9% |
| BABA Alibaba Group Holding-SP ADR | 0.48% | 1,003,699 | $179.4M | Add +5.9% |
| KTOS Kratos Defense & Security | 0.47% | 1,932,889 | $176.6M | Reduce -52.7% |
| MSFT Microsoft Corp. | 0.46% | 335,547 | $173.8M | Add +0.2% |
| WYNN WYNN Resorts Ltd. | 0.46% | 1,337,858 | $171.6M | Add +0.1% |
| KRMN Karman Holdings Inc. | 0.45% | 2,371,232 | $171.2M | Reduce -1.8% |
| TSM Taiwan Semiconductor-SP ADR | 0.45% | 605,912 | $169.2M | Add +4.6% |
| JLL Jones Lang Lasalle Inc. | 0.45% | 564,097 | $168.3M | Add +8.8% |
| GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD | 0.44% | 4,258,664 | $164.8M | Add +35.0% |
| BN Brookfield Corp. | 0.44% | 2,402,280 | $164.7M | Reduce -4.3% |
| AVGO Broadcom Inc. | 0.44% | 497,399 | $164.1M | Reduce -6.1% |
| TOL Toll Brothers Inc. | 0.42% | 1,156,885 | $159.8M | Add +2.0% |
| DKNG Draftkings Inc. Class A | 0.41% | 4,105,968 | $153.6M | Add +11.9% |
| PWR Quanta Services Inc. | 0.39% | 356,846 | $147.9M | Add +0.7% |
| MELI MercadoLibre Inc. | 0.39% | 62,634 | $146.4M | Add +1.8% |
| LOAR Loar Holdings Inc. | 0.38% | 1,809,099 | $144.7M | Add +165.2% |
| LLYVK Liberty Media Corp.-Liberty-C | 0.38% | 1,458,910 | $141.5M | Add +2.9% |
| EQIX Equinix Inc. | 0.37% | 178,348 | $139.7M | Reduce -7.3% |
| TECH Bio-Techne Corp. | 0.37% | 2,496,323 | $138.9M | Reduce -10.7% |
| CPNG Coupang Inc. | 0.37% | 4,305,895 | $138.6M | Reduce -8.1% |
| CWAN Clearwater Analytics HDS-A | 0.37% | 7,675,038 | $138.3M | Add +25.9% |
| RBC RBC Bearings Inc. | 0.34% | 327,649 | $127.9M | Add +0.2% |
| IOT Samsara Inc. Class A | 0.33% | 3,378,831 | $125.9M | Add +23.7% |
| ARGX Argenx SE - ADR | 0.33% | 167,694 | $123.7M | Reduce -7.2% |
| ICLR Icon PLC | 0.32% | 684,941 | $119.9M | Reduce -0.8% |
| PLNT Planet Fitness Inc. Class A | 0.32% | 1,150,028 | $119.4M | Add +0.0% |
| INTA Intapp Inc. | 0.31% | 2,880,950 | $117.8M | Add +6.7% |
| EXAS Exact Sciences Corp. | 0.31% | 2,139,050 | $117.0M | Add +14.9% |
| FICO Fair Isaac Corp. | 0.30% | 75,829 | $113.5M | Reduce -6.3% |
| CNS Cohen & Steers Inc. | 0.30% | 1,728,387 | $113.4M | Reduce -10.4% |
| IBP Installed Building Products | 0.30% | 458,182 | $113.0M | Reduce -4.8% |
| ROP Roper Technologies Inc. | 0.30% | 226,060 | $112.7M | Reduce -10.9% |
| FND Floor & Decor Holdings Inc. Class A | 0.30% | 1,527,395 | $112.6M | Add +42.2% |
| TDG Transdigm Group Inc. | 0.29% | 82,149 | $108.3M | Reduce -6.5% |
| PCOR Procore Technologies Inc. | 0.29% | 1,480,776 | $108.0M | Add +16.2% |
| HEI.A Heico Corp. Class A | 0.29% | 424,729 | $107.9M | Add +8.3% |
| BX Blackstone Inc. | 0.28% | 616,242 | $105.3M | Add +7.4% |
| AMT American Tower Corp. | 0.27% | 534,053 | $102.7M | Reduce -5.9% |
| PLD Prologis Inc. | 0.27% | 891,522 | $102.1M | Add +12.5% |
| BFAM Bright Horizons Family Solut | 0.27% | 938,962 | $101.9M | Reduce -24.4% |
| CRH CRH PLC | 0.27% | 842,734 | $101.0M | Add +2.3% |
| MRCY Mercury Systems Inc. | 0.27% | 1,295,284 | $100.3M | Add +4.9% |
| JBTM JBT Marel Corp. | 0.26% | 700,040 | $98.3M | Add +0.0% |
| NET Cloudflare Inc. Class A | 0.26% | 454,234 | $97.5M | Reduce -10.3% |
| TTAN Servicetitan Inc. Class A | 0.26% | 962,618 | $97.1M | Add +2.9% |
| VEEV Veeva Systems Inc. Class A | 0.26% | 325,650 | $97.0M | Reduce -9.1% |
| FWONK Liberty Media Corp. Class C | 0.25% | 900,000 | $94.0M | Reduce -10.0% |
| TTD Trade Desk Inc./the Class A filed as THE TRADE DESK INC | 0.23% | 1,798,634 | $88.2M | Reduce -13.9% |
| INDI Indie Semiconductor Inc. Class A | 0.23% | 21,557,287 | $87.7M | Reduce -14.8% |
| CGNX Cognex Corp. | 0.23% | 1,900,166 | $86.1M | Add +0.0% |
| ODD Oddity Tech Ltd. Class A | 0.23% | 1,376,781 | $85.8M | Add +11.3% |
| BWIN Baldwin Insurance Group Inc./ filed as THE BALDWIN INSURANCE GRP IN | 0.23% | 3,010,203 | $84.9M | Add +0.0% |
| SNOW Snowflake Inc. | 0.22% | 373,422 | $84.2M | Add +1.4% |
| TREX Trex Company Inc. | 0.22% | 1,589,735 | $82.1M | Add +0.7% |
| YMM Full Truck Alliance -SPN ADR | 0.22% | 6,314,857 | $81.9M | Reduce -21.1% |
| DRVN Driven Brands Holdings Inc. | 0.21% | 5,000,261 | $80.6M | Add +0.0% |
| ITGR Integer Holdings Corp. | 0.21% | 766,055 | $79.2M | Add +81.4% |
| WST West Pharmaceutical Services | 0.21% | 300,931 | $78.9M | Reduce -2.2% |
| BAP Credicorp Ltd. | 0.21% | 295,922 | $78.8M | Reduce -21.9% |
| DUOL Duolingo | 0.21% | 243,708 | $78.4M | Add +226.4% |
| DDOG Datadog Inc. Class A | 0.20% | 539,443 | $76.8M | Reduce -12.7% |
| ROL Rollins Inc. | 0.20% | 1,279,912 | $75.2M | Reduce -7.3% |
| GTLB Gitlab Inc. Class A | 0.19% | 1,598,057 | $72.0M | Add +15.3% |
| HQY Healthequity Inc. | 0.19% | 759,525 | $72.0M | Reduce -2.6% |
| ABNB Airbnb Inc. Class A | 0.19% | 578,540 | $70.2M | Add +16.1% |
| LPLA LPL Financial Holdings Inc. | 0.18% | 207,897 | $69.2M | Reduce -6.5% |
| TRU Transunion | 0.18% | 822,483 | $68.9M | Reduce -5.7% |
Portfolio Sells Q2 2025 → Q3 2025
| FDS Factset Research Systems Inc. | Reduce -18.5% | 1.38% | −1.32 |
| IRDM Iridium Communications Inc. | Reduce -91.8% | 0.03% | −0.65 |
| GWRE Guidewire Software Inc. | Reduce -7.5% | 3.15% | −0.42 |
| GTLS Chart Industries Inc. | Sold out | 0.00% | −0.40 |
| ACGL Arch Capital Group Ltd. | Reduce -4.9% | 4.51% | −0.36 |
| GLPI Gaming and Leisure Propertie | Reduce -30.2% | 0.64% | −0.30 |
| DAY Dayforce Inc. | Reduce -78.5% | 0.10% | −0.27 |
| CYBR Cyberark Software Ltd./Israel | Reduce -89.2% | 0.03% | −0.24 |
| ANSS Ansys Inc. | Sold out | 0.00% | −0.19 |
| CG The Carlyle Group Inc. | Reduce -88.8% | 0.03% | −0.18 |
| TTD Trade Desk Inc./the Class A | Reduce -13.9% | 0.23% | −0.17 |
| PAR Par Technology Corp. | Reduce -2.3% | 0.18% | −0.15 |
| BFAM Bright Horizons Family Solut | Reduce -24.4% | 0.27% | −0.15 |
| PRI Primerica Inc. | Reduce -11.4% | 1.04% | −0.14 |
| INSP Inspire Medical Systems Inc. | Reduce -61.4% | 0.04% | −0.14 |
| FICO Fair Isaac Corp. | Reduce -6.3% | 0.30% | −0.10 |
| CNS Cohen & Steers Inc. | Reduce -10.4% | 0.30% | −0.09 |
| ROP Roper Technologies Inc. | Reduce -10.9% | 0.30% | −0.09 |
| TDG Transdigm Group Inc. | Reduce -6.5% | 0.29% | −0.07 |
| CAKE The Cheesecake Factory Inc. | Reduce -16.7% | 0.18% | −0.07 |
| MTD Mettler-Toledo International | Reduce -11.5% | 0.69% | −0.07 |
| AMT American Tower Corp. | Reduce -5.9% | 0.27% | −0.07 |
| VRT Vertiv Holdings Co. Class A | Reduce -19.4% | 0.83% | −0.07 |
| COO The Cooper Cos Inc. | Reduce -25.4% | 0.12% | −0.05 |
| KTOS Kratos Defense & Security | Reduce -52.7% | 0.47% | −0.05 |
| EQIX Equinix Inc. | Reduce -7.3% | 0.37% | −0.04 |
| IRT Independence Realty Trust Inc. | Reduce -35.0% | 0.06% | −0.04 |
| LPLA LPL Financial Holdings Inc. | Reduce -6.5% | 0.18% | −0.04 |
| TW Tradeweb Markets Inc. Class A | Reduce -0.5% | 0.12% | −0.04 |
| YMM Full Truck Alliance -SPN ADR | Reduce -21.1% | 0.22% | −0.04 |
| LLY Eli Lilly & Co. | Reduce -13.2% | 0.17% | −0.04 |
| FWONK Liberty Media Corp. Class C | Reduce -10.0% | 0.25% | −0.03 |
| TEAM Atlassian Corp. Class A | Reduce -8.6% | 0.07% | −0.03 |
| HQY Healthequity Inc. | Reduce -2.6% | 0.19% | −0.03 |
| ISRG Intuitive Surgical Inc. | Reduce -1.1% | 0.12% | −0.03 |
| DXCM Dexcom Inc. | Reduce -18.1% | 0.05% | −0.03 |
| META Meta Platforms Inc. Class A | Reduce -2.9% | 0.52% | −0.03 |
| TXRH Texas Roadhouse Inc. | Reduce -6.8% | 0.13% | −0.03 |
| EFOR Everforth Inc. | Reduce -8.6% | 0.17% | −0.03 |
| ZLAB Zai Lab Ltd.-ADR | Reduce -13.6% | 0.12% | −0.03 |
| VNO Vornado Realty Trust | Reduce -18.2% | 0.15% | −0.03 |
| LI Li Auto Inc. - ADR | Sold out | 0.00% | −0.03 |
| ARE Alexandria Real Estate Equit | Reduce -87.1% | 0.00% | −0.03 |
| TRU Transunion | Reduce -5.7% | 0.18% | −0.03 |
| DAVA Endava PLC- Spon ADR | Reduce -81.7% | 0.00% | −0.02 |
| AFYA Afya Ltd. Class A | Reduce -11.3% | 0.07% | −0.02 |
| VEEV Veeva Systems Inc. Class A | Reduce -9.1% | 0.26% | −0.02 |
| TECH Bio-Techne Corp. | Reduce -10.7% | 0.37% | −0.02 |
| DDOG Datadog Inc. Class A | Reduce -12.7% | 0.20% | −0.02 |
| DLR Digital Realty Trust Inc. | Reduce -11.0% | 0.13% | −0.02 |
Portfolio Buys Q2 2025 → Q3 2025
| RRR Red Rock Resorts Inc. Class A | Add +0.0% | 1.99% | +0.26 |
| NVDA Nvidia Corp. | Add +3.3% | 1.48% | +0.24 |
| LOAR Loar Holdings Inc. | Add +165.2% | 0.38% | +0.22 |
| IBKR Interactive Brokers Gro Class A | Add +9.8% | 0.84% | +0.21 |
| MSCI MSCI Inc. | Add +10.3% | 3.60% | +0.21 |
| BABA Alibaba Group Holding-SP ADR | Add +5.9% | 0.48% | +0.18 |
| AAON Aaon Inc. | New | 0.18% | +0.18 |
| GDS GDS Holdings Ltd. - ADR | Add +35.0% | 0.44% | +0.18 |
| BIRK Birkenstock Holding PLC | Add +41.9% | 0.76% | +0.17 |
| NTSK Netskope Inc. Class A | New | 0.14% | +0.14 |
| STUB Stubhub Holdings Inc. Class A | New | 0.13% | +0.13 |
| DUOL Duolingo | Add +226.4% | 0.21% | +0.13 |
| BMI Badger Meter Inc. | New | 0.12% | +0.12 |
| PRMB Primo Brands Corp. | Add +1128.1% | 0.13% | +0.12 |
| WYNN WYNN Resorts Ltd. | Add +0.1% | 0.46% | +0.12 |
| APH Amphenol Corp. Class A | Add +0.0% | 0.62% | +0.11 |
| LGN Legence Corp. Class A | New | 0.11% | +0.11 |
| HTFL Heartflow Inc. | New | 0.11% | +0.11 |
| FIG Figma Inc. Class A | New | 0.10% | +0.10 |
| TSM Taiwan Semiconductor-SP ADR | Add +4.6% | 0.45% | +0.09 |
| IRM Iron Mountain Inc. | Add +306.3% | 0.12% | +0.09 |
| JLL Jones Lang Lasalle Inc. | Add +8.8% | 0.45% | +0.09 |
| MRCY Mercury Systems Inc. | Add +4.9% | 0.27% | +0.09 |
| STEP Stepstone Group Inc. Class A | Add +325.8% | 0.10% | +0.08 |
| PONY Pony AI Inc. | Add +38.7% | 0.14% | +0.08 |
| FND Floor & Decor Holdings Inc. Class A | Add +42.2% | 0.30% | +0.08 |
| TOL Toll Brothers Inc. | Add +2.0% | 0.42% | +0.07 |
| ITGR Integer Holdings Corp. | Add +81.4% | 0.21% | +0.07 |
| SQM Quimica Y Minera Chil-SP ADR | New | 0.07% | +0.07 |
| SITM Sitime Corp. | Add +33.7% | 0.14% | +0.07 |
| CGNX Cognex Corp. | Add +0.0% | 0.23% | +0.06 |
| LLYVK Liberty Media Corp.-Liberty-C | Add +2.9% | 0.38% | +0.06 |
| CRH CRH PLC | Add +2.3% | 0.27% | +0.06 |
| SCHW Schwab (charles) Corp. | Add +1.1% | 1.81% | +0.06 |
| NOVT Novanta Inc. | Add +101.6% | 0.17% | +0.06 |
| METC Ramaco Resources Inc. Class A | New | 0.05% | +0.05 |
| PCOR Procore Technologies Inc. | Add +16.2% | 0.29% | +0.05 |
| ALKT Alkami Technology Inc. | Add +80.0% | 0.16% | +0.05 |
| ARX Accelerant Holdings Class A | New | 0.05% | +0.05 |
| H Hyatt Hotels Corp. Class A | Add +2.7% | 2.30% | +0.05 |
| BX Blackstone Inc. | Add +7.4% | 0.28% | +0.05 |
| PLD Prologis Inc. | Add +12.5% | 0.27% | +0.04 |
| AEIS Advanced Energy Industries | Add +5.0% | 0.18% | +0.04 |
| RGEN Repligen Corp. | Add +39.1% | 0.14% | +0.04 |
| VIA Via Transportation Inc. Class A | New | 0.04% | +0.04 |
| EXAS Exact Sciences Corp. | Add +14.9% | 0.31% | +0.04 |
| GOOGL Alphabet Inc. Class A | Add +22.0% | 0.10% | +0.04 |
| IOT Samsara Inc. Class A | Add +23.7% | 0.33% | +0.04 |
| RDNT Radnet Inc. | Add +0.0% | 0.16% | +0.04 |
| ANET Arista Networks Inc. | New | 0.04% | +0.04 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 345 | $66.6B | SPCX, TSLA, MSCI, ACGL, H |
| Q1 2026 | 326 | $33.1B | TSLA, ACGL, MSCI, GWRE, IT |
| Q4 2025 | 327 | $36.9B | TSLA, ACGL, MSCI, CSGP, IDXX |
| Q3 2025 | 330 | $37.7B | TSLA, ACGL, CSGP, MSCI, IDXX |
| Q2 2025 | 306 | $36.9B | TSLA, ACGL, CSGP, IT, GWRE |
| Q1 2025 | 314 | $34.0B | TSLA, ACGL, IT, CSGP, MSCI |
| Q4 2024 | 316 | $38.7B | TSLA, IT, ACGL, CSGP, MSCI |
| Q3 2024 | 328 | $37.7B | TSLA, ACGL, IT, CSGP, MSCI |
| Q2 2024 | 329 | $34.9B | TSLA, ACGL, IT, CSGP, FDS |
| Q1 2024 | 332 | $37.5B | TSLA, IT, ACGL, CSGP, MSCI |