Baron Capital (BAMCO)
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Ron Baron's Baron Capital (BAMCO) reported 326 stock positions worth $33.1 billion. Its top holding was Tesla (TSLA) at 13.4% of the portfolio, followed by Arch Capital (ACGL, 4.8%) and MSCI (MSCI, 4.4%). Compared with Q4 2025, it opened 35 new positions, sold out of 36, added to 114 and reduced 147. The biggest buy was Shopify Class A (SHOP, shares +106%) and the biggest sale Costar (CSGP, shares −16%).
- Most Recent 13F
- Q2 2026
- Notable People
- Ron Baron
- Location
- NEW YORK, NY
- CIK
- 0001017918
- Portfolio Value
- $33.1B (Q1 2026)
- SEC Filing
- 0001017918-26-000043 ↗ filed May 15, 2026
Holdings Value
Holdings 326 stocks · $33.1B
| TSLA Tesla Inc. | 13.39% | 11,933,509 | $4.4B | Add +0.1% |
| ACGL Arch Capital Group Ltd. | 4.84% | 16,709,759 | $1.6B | Reduce -7.1% |
| MSCI MSCI Inc. | 4.39% | 2,699,389 | $1.5B | Reduce -2.0% |
| GWRE Guidewire Software Inc. | 2.98% | 6,597,453 | $986.7M | Add +28.2% |
| IT Gartner Inc. | 2.83% | 5,917,616 | $937.0M | Add +40.5% |
| IDXX Idexx Laboratories Inc. | 2.77% | 1,633,367 | $917.8M | Reduce -9.2% |
| H Hyatt Hotels Corp. Class A | 2.75% | 6,341,673 | $911.9M | Add +3.9% |
| FIGS Figs Inc. Class A | 2.67% | 59,959,449 | $885.6M | No change |
| FDS Factset Research Systems Inc. | 2.46% | 3,756,587 | $815.1M | Add +30.0% |
| CHH Choice Hotels Intl Inc. | 2.40% | 7,690,494 | $796.0M | Add +4.1% |
| RRR Red Rock Resorts Inc. Class A | 2.16% | 13,412,846 | $715.7M | Add +7.1% |
| SCHW Schwab (charles) Corp. | 2.12% | 7,464,316 | $701.5M | Add +5.7% |
| KNSL Kinsale Capital Group Inc. | 2.09% | 2,027,765 | $692.8M | Add +13.8% |
| CSGP Costar Group Inc. | 1.99% | 16,314,175 | $658.1M | Reduce -16.3% |
| MTN Vail Resorts Inc. | 1.95% | 5,043,533 | $647.2M | Add +4.9% |
| SPOT Spotify Technology SA | 1.93% | 1,319,525 | $639.9M | Add +32.3% |
| SHOP Shopify Inc. Class A | 1.69% | 4,718,230 | $559.7M | Add +106.2% |
| NVDA Nvidia Corp. | 1.54% | 2,919,758 | $509.2M | Reduce -2.3% |
| VRSK Verisk Analytics Inc. | 1.44% | 2,511,976 | $476.6M | Add +92.8% |
| BIRK Birkenstock Holding PLC | 1.01% | 9,366,068 | $335.6M | Add +17.6% |
| ONON On Holding AG Class A filed as ON HLDG AG | 1.00% | 9,714,605 | $330.5M | Add +79.7% |
| VRT Vertiv Holdings Co. Class A | 0.89% | 1,181,144 | $296.0M | Reduce -23.6% |
| SITE Siteone Landscape Supply Inc. | 0.83% | 2,059,076 | $274.1M | Add +1.5% |
| IBKR Interactive Brokers Gro Class A | 0.82% | 4,047,376 | $271.5M | Reduce -12.8% |
| AMZN Amazon.com Inc. | 0.81% | 1,294,654 | $269.6M | Add +5.7% |
| WELL Welltower Inc. | 0.80% | 1,344,941 | $265.9M | Add +5.3% |
| EQIX Equinix Inc. | 0.72% | 243,975 | $239.2M | Add +67.8% |
| PRI Primerica Inc. | 0.65% | 860,026 | $215.4M | Reduce -24.1% |
| TSM Taiwan Semiconductor-SP ADR | 0.65% | 636,267 | $215.0M | Add +0.3% |
| APH Amphenol Corp. Class A | 0.63% | 1,659,690 | $209.7M | Reduce -3.0% |
| GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD | 0.56% | 4,597,246 | $185.2M | Add +21.5% |
| ABNB Airbnb Inc. Class A | 0.55% | 1,441,221 | $182.0M | Add +63.8% |
| PWR Quanta Services Inc. | 0.54% | 325,840 | $178.9M | Reduce -0.7% |
| WYNN WYNN Resorts Ltd. | 0.53% | 1,736,856 | $176.4M | Add +42.4% |
| MTD Mettler-Toledo International | 0.51% | 133,639 | $168.5M | Reduce -8.7% |
| IOT Samsara Inc. Class A | 0.49% | 5,119,835 | $162.2M | Add +24.3% |
| AVGO Broadcom Inc. | 0.49% | 523,219 | $161.9M | Reduce -2.7% |
| HLI Houlihan Lokey Inc. | 0.46% | 1,061,403 | $152.4M | Reduce -5.6% |
| META Meta Platforms Inc. Class A | 0.44% | 256,700 | $146.9M | Reduce -5.0% |
| CBRE CBRE Group Inc. Class A | 0.44% | 1,074,451 | $145.5M | Reduce -21.0% |
| LLYVK Liberty Live Holdings Class C | 0.43% | 1,525,473 | $143.6M | Reduce -5.5% |
| PLD Prologis Inc. | 0.43% | 1,065,747 | $140.9M | Reduce -3.9% |
| FPS Forgent Power Solutions Class A | 0.41% | 4,674,583 | $136.8M | New |
| LOAR Loar Holdings Inc. | 0.41% | 2,366,299 | $135.6M | Add +11.6% |
| MORN Morningstar Inc. | 0.39% | 759,515 | $128.4M | Reduce -38.8% |
| TOL Toll Brothers Inc. | 0.38% | 932,031 | $127.2M | Reduce -20.1% |
| BN Brookfield Corp. | 0.35% | 2,905,510 | $117.6M | Reduce -20.1% |
| GOOGL Alphabet Inc. Class A | 0.33% | 382,577 | $110.0M | Add +142.9% |
| NOVT Novanta Inc. | 0.33% | 915,083 | $108.1M | Reduce -2.3% |
| KRMN Karman Holdings Inc. | 0.31% | 1,279,093 | $102.4M | Reduce -33.2% |
| ARGX Argenx SE - ADR | 0.31% | 138,648 | $101.2M | Reduce -9.8% |
| RBC RBC Bearings Inc. | 0.30% | 181,481 | $98.6M | Reduce -40.1% |
| NPO Enpro Inc. | 0.30% | 391,730 | $98.2M | Add +31.1% |
| NET Cloudflare Inc. Class A | 0.28% | 457,324 | $94.4M | Add +11.7% |
| HTFL Heartflow Inc. | 0.28% | 3,827,531 | $93.1M | Add +66.1% |
| DKNG Draftkings Inc. Class A | 0.28% | 4,218,766 | $91.2M | Reduce -9.8% |
| TDG Transdigm Group Inc. | 0.28% | 78,664 | $91.2M | Add +1.1% |
| BFAM Bright Horizons Family Solut | 0.27% | 1,102,308 | $90.5M | Add +8.8% |
| PLNT Planet Fitness Inc. Class A | 0.27% | 1,200,064 | $89.3M | Add +4.3% |
| HEI.A Heico Corp. Class A | 0.27% | 419,407 | $88.5M | Reduce -3.4% |
| DLR Digital Realty Trust Inc. | 0.26% | 484,763 | $87.4M | Add +250.8% |
| AEIS Advanced Energy Industries | 0.26% | 268,725 | $86.7M | Reduce -10.2% |
| PCOR Procore Technologies Inc. | 0.26% | 1,499,091 | $85.4M | Reduce -1.1% |
| CGNX Cognex Corp. | 0.26% | 1,740,166 | $85.3M | Reduce -8.4% |
| JBTM JBT Marel Corp. | 0.25% | 660,040 | $84.4M | Reduce -5.7% |
| GLPI Gaming and Leisure Propertie | 0.25% | 1,846,273 | $81.9M | Reduce -0.7% |
| VTR Ventas Inc. | 0.25% | 998,339 | $81.6M | Reduce -18.1% |
| HLT Hilton Worldwide Holdings Inc. | 0.24% | 265,363 | $80.7M | Reduce -0.9% |
| DT Dynatrace Inc. | 0.24% | 2,159,694 | $79.9M | Add +44.0% |
| BABA Alibaba Group Holding-SP ADR | 0.24% | 635,540 | $79.7M | Reduce -40.7% |
| LLY Eli Lilly & Co. | 0.24% | 85,066 | $78.2M | Reduce -1.6% |
| CRH CRH PLC | 0.23% | 739,176 | $77.7M | Reduce -12.5% |
| MAC The Macerich Co. | 0.23% | 4,084,693 | $77.2M | Add +24.3% |
| BAP Credicorp Ltd. | 0.23% | 222,224 | $75.4M | Reduce -22.0% |
| INDI Indie Semiconductor Inc. Class A | 0.23% | 23,337,826 | $75.1M | Add +7.5% |
| MELI MercadoLibre Inc. | 0.22% | 42,793 | $74.0M | Reduce -30.9% |
| JLL Jones Lang Lasalle Inc. | 0.22% | 241,208 | $73.4M | Reduce -57.3% |
| PSA Public Storage | 0.22% | 266,847 | $72.3M | New |
| TTAN Servicetitan Inc. Class A | 0.21% | 1,114,416 | $70.7M | Add +1.6% |
| LGN Legence Corp. Class A | 0.21% | 1,245,682 | $70.3M | Reduce -10.8% |
| AAON Aaon Inc. | 0.21% | 844,377 | $69.9M | Add +14.4% |
| DDOG Datadog Inc. Class A | 0.21% | 587,382 | $69.3M | Add +19.7% |
| MPWR Monolithic Power Systems Inc. | 0.21% | 62,994 | $68.9M | Reduce -3.4% |
| FWONK Liberty Media Corp. Class C | 0.21% | 800,000 | $68.0M | Reduce -11.1% |
| LVS Las Vegas Sands Corp. | 0.20% | 1,226,430 | $66.1M | Reduce -18.1% |
| ROP Roper Technologies Inc. | 0.20% | 186,159 | $65.9M | Reduce -10.3% |
| FND Floor & Decor Holdings Inc. Class A | 0.20% | 1,273,764 | $64.7M | Reduce -6.0% |
| RGEN Repligen Corp. | 0.20% | 548,346 | $64.6M | Add +0.7% |
| JEF Jefferies Financial Group Inc. | 0.19% | 1,530,228 | $63.2M | Add +156.5% |
| HQY Healthequity Inc. | 0.19% | 750,025 | $62.7M | Reduce -0.8% |
| FICO Fair Isaac Corp. | 0.19% | 57,929 | $61.8M | Reduce -15.6% |
| SNOW Snowflake Inc. | 0.18% | 398,468 | $60.1M | Add +4.3% |
| BWIN Baldwin Insurance Group Inc./ filed as THE BALDWIN INSURANCE GRP IN | 0.18% | 2,710,068 | $59.5M | Reduce -10.0% |
| BLLN Billiontoone Inc. Class A | 0.18% | 741,485 | $58.5M | Add +336.2% |
| CDNA Caredx Inc. | 0.17% | 3,336,409 | $57.9M | Add +5.7% |
| CWST Casella Waste Systems Inc. Class A | 0.17% | 718,461 | $57.0M | Add +61.0% |
| DRVN Driven Brands Holdings Inc. | 0.17% | 4,500,196 | $56.7M | Reduce -10.0% |
| WAY Waystar Holding Corp. | 0.17% | 2,325,569 | $56.1M | Add +66.9% |
| INTA Intapp Inc. | 0.17% | 2,144,270 | $55.1M | Reduce -35.6% |
| CAKE The Cheesecake Factory Inc. | 0.17% | 1,000,037 | $54.8M | Reduce -20.0% |
Portfolio Sells Q4 2025 → Q1 2026
| CSGP Costar Group Inc. | Reduce -16.3% | 1.99% | −1.57 |
| IDXX Idexx Laboratories Inc. | Reduce -9.2% | 2.77% | −0.53 |
| CWAN Clearwater Analytics HDS-A | Reduce -98.0% | 0.01% | −0.50 |
| MSFT Microsoft Corp. | Reduce -78.4% | 0.08% | −0.37 |
| MORN Morningstar Inc. | Reduce -38.8% | 0.39% | −0.34 |
| JLL Jones Lang Lasalle Inc. | Reduce -57.3% | 0.22% | −0.29 |
| EXAS Exact Sciences Corp. | Sold out | 0.00% | −0.26 |
| INTA Intapp Inc. | Reduce -35.6% | 0.17% | −0.25 |
| BX Blackstone Inc. | Reduce -83.7% | 0.03% | −0.21 |
| BABA Alibaba Group Holding-SP ADR | Reduce -40.7% | 0.24% | −0.18 |
| FROG Jfrog Ltd. | Reduce -58.5% | 0.09% | −0.16 |
| DKNG Draftkings Inc. Class A | Reduce -9.8% | 0.28% | −0.16 |
| CBRE CBRE Group Inc. Class A | Reduce -21.0% | 0.44% | −0.15 |
| LPX Louisiana-Pacific Corp. | Sold out | 0.00% | −0.15 |
| GTLB Gitlab Inc. Class A | Sold out | 0.00% | −0.14 |
| ODD Oddity Tech Ltd. Class A | Reduce -95.4% | 0.00% | −0.14 |
| PRI Primerica Inc. | Reduce -24.1% | 0.65% | −0.14 |
| IBP Installed Building Products | Reduce -53.2% | 0.16% | −0.14 |
| MASI Masimo Corp. | Sold out | 0.00% | −0.13 |
| FICO Fair Isaac Corp. | Reduce -15.6% | 0.19% | −0.13 |
| ICLR Icon PLC | Reduce -20.1% | 0.14% | −0.12 |
| AMT American Tower Corp. | Reduce -91.2% | 0.01% | −0.12 |
| MELI MercadoLibre Inc. | Reduce -30.9% | 0.22% | −0.11 |
| CPNG Coupang Inc. | Reduce -34.3% | 0.16% | −0.11 |
| ACLX Arcellx Inc. | Sold out | 0.00% | −0.11 |
| FBIN Fortune Brands Innovations I | Sold out | 0.00% | −0.10 |
| TECH Bio-Techne Corp. | Reduce -53.5% | 0.09% | −0.10 |
| BN Brookfield Corp. | Reduce -20.1% | 0.35% | −0.10 |
| KTOS Kratos Defense & Security | Reduce -40.9% | 0.15% | −0.10 |
| TEAM Atlassian Corp. Class A | Reduce -99.2% | 0.00% | −0.10 |
| BAM Brookfield Asset Mgmt-A | Reduce -59.6% | 0.05% | −0.09 |
| ALKT Alkami Technology Inc. | Reduce -22.6% | 0.11% | −0.08 |
| STUB Stubhub Holdings Inc. Class A | Reduce -34.6% | 0.04% | −0.07 |
| RBC RBC Bearings Inc. | Reduce -40.1% | 0.30% | −0.07 |
| KRMN Karman Holdings Inc. | Reduce -33.2% | 0.31% | −0.07 |
| HLI Houlihan Lokey Inc. | Reduce -5.6% | 0.46% | −0.07 |
| VEEV Veeva Systems Inc. Class A | Reduce -35.9% | 0.09% | −0.07 |
| MC Moelis & Co. Class A | Reduce -68.2% | 0.03% | −0.07 |
| CWK Cushman & Wakefield Ltd. | Sold out | 0.00% | −0.07 |
| LVS Las Vegas Sands Corp. | Reduce -18.1% | 0.20% | −0.06 |
| YMM Full Truck Alliance -SPN ADR | Reduce -27.5% | 0.10% | −0.06 |
| PAR Par Technology Corp. | Reduce -6.0% | 0.04% | −0.06 |
| SKY Champion Homes Inc. | Reduce -35.3% | 0.11% | −0.06 |
| CVCO Cavco Industries Inc. | Sold out | 0.00% | −0.06 |
| LPLA LPL Financial Holdings Inc. | Reduce -30.5% | 0.11% | −0.06 |
| NVMI Nova Ltd. | Reduce -61.3% | 0.08% | −0.06 |
| TRU Transunion | Reduce -21.2% | 0.13% | −0.06 |
| NCNO Ncino Inc. | Reduce -2.5% | 0.09% | −0.05 |
| XPEV Xpeng Inc. - ADR | Sold out | 0.00% | −0.05 |
| TTD Trade Desk Inc./the Class A | Sold out | 0.00% | −0.05 |
Portfolio Buys Q4 2025 → Q1 2026
| SHOP Shopify Inc. Class A | Add +106.2% | 1.69% | +0.69 |
| VRSK Verisk Analytics Inc. | Add +92.8% | 1.44% | +0.65 |
| CHH Choice Hotels Intl Inc. | Add +4.1% | 2.40% | +0.50 |
| EQIX Equinix Inc. | Add +67.8% | 0.72% | +0.42 |
| FPS Forgent Power Solutions Class A | New | 0.41% | +0.41 |
| SPOT Spotify Technology SA | Add +32.3% | 1.93% | +0.36 |
| ONON On Holding AG Class A | Add +79.7% | 1.00% | +0.32 |
| ABNB Airbnb Inc. Class A | Add +63.8% | 0.55% | +0.23 |
| MTN Vail Resorts Inc. | Add +4.9% | 1.95% | +0.22 |
| PSA Public Storage | New | 0.22% | +0.22 |
| SCHW Schwab (charles) Corp. | Add +5.7% | 2.12% | +0.21 |
| DLR Digital Realty Trust Inc. | Add +250.8% | 0.26% | +0.21 |
| KNSL Kinsale Capital Group Inc. | Add +13.8% | 2.09% | +0.20 |
| GDS GDS Holdings Ltd. - ADR | Add +21.5% | 0.56% | +0.20 |
| GOOGL Alphabet Inc. Class A | Add +142.9% | 0.33% | +0.20 |
| FDS Factset Research Systems Inc. | Add +30.0% | 2.46% | +0.19 |
| GWRE Guidewire Software Inc. | Add +28.2% | 2.98% | +0.18 |
| IRM Iron Mountain Inc. | New | 0.16% | +0.16 |
| WELL Welltower Inc. | Add +5.3% | 0.80% | +0.16 |
| SITE Siteone Landscape Supply Inc. | Add +1.5% | 0.83% | +0.14 |
| BLLN Billiontoone Inc. Class A | Add +336.2% | 0.18% | +0.14 |
| WYNN WYNN Resorts Ltd. | Add +42.4% | 0.53% | +0.13 |
| CZR Caesars Entertainment Inc. | New | 0.13% | +0.13 |
| BIRK Birkenstock Holding PLC | Add +17.6% | 1.01% | +0.13 |
| TSM Taiwan Semiconductor-SP ADR | Add +0.3% | 0.65% | +0.13 |
| NPO Enpro Inc. | Add +31.1% | 0.30% | +0.12 |
| VIST Vista Energy Sab DE CV | New | 0.12% | +0.12 |
| MGM MGM Resorts International | New | 0.11% | +0.11 |
| BBD Banco Bradesco-ADR | New | 0.11% | +0.11 |
| XP XP Inc. Class A | Add +123.7% | 0.15% | +0.10 |
| H Hyatt Hotels Corp. Class A | Add +3.9% | 2.75% | +0.10 |
| HTFL Heartflow Inc. | Add +66.1% | 0.28% | +0.10 |
| PENN Penn Entertainment Inc. | New | 0.09% | +0.09 |
| IOT Samsara Inc. Class A | Add +24.3% | 0.49% | +0.09 |
| JEF Jefferies Financial Group Inc. | Add +156.5% | 0.19% | +0.09 |
| OFRM Once Upon A Farm PBC | New | 0.09% | +0.09 |
| UDR Udr Inc. | New | 0.08% | +0.08 |
| ASML ASML Holding NV-NY Reg SHS | Add +45.8% | 0.14% | +0.07 |
| MAC The Macerich Co. | Add +24.3% | 0.23% | +0.07 |
| SHW The Sherwin-Williams Co. | New | 0.07% | +0.07 |
| NET Cloudflare Inc. Class A | Add +11.7% | 0.28% | +0.07 |
| TEM Tempus AI Inc. Class A | Add +153.0% | 0.12% | +0.07 |
| IRTC Irhythm Holdings Inc. | New | 0.07% | +0.07 |
| DT Dynatrace Inc. | Add +44.0% | 0.24% | +0.07 |
| AXGN Axogen Inc. | New | 0.06% | +0.06 |
| LRCX Lam Research Corp. | Add +316.3% | 0.08% | +0.06 |
| RRR Red Rock Resorts Inc. Class A | Add +7.1% | 2.16% | +0.06 |
| AAON Aaon Inc. | Add +14.4% | 0.21% | +0.06 |
| FIG Figma Inc. Class A | Add +173.6% | 0.13% | +0.06 |
| CWST Casella Waste Systems Inc. Class A | Add +61.0% | 0.17% | +0.05 |
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 |