Baron Capital (BAMCO)

Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q4 2024Q3 2024Q2 2024Q1 2024

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Ron Baron's Baron Capital (BAMCO) reported 314 stock positions worth $34.0 billion. Its top holding was Tesla (TSLA) at 10.8% of the portfolio, followed by Arch Capital (ACGL, 5.6%) and Gartner (IT, 4.6%). Compared with Q4 2024, it opened 28 new positions, sold out of 31, added to 101 and reduced 137. The biggest buy was a new position in American Tower (AMT) and the biggest sale Tesla (TSLA, shares −3%).

Most Recent 13F: Q2 2026
Notable People: Ron Baron
Location: NEW YORK, NY
CIK: 0001017918
Portfolio Value: $34.0B (Q1 2025)
SEC Filing: 0001017918-25-000031 ↗ filed May 15, 2025

Holdings Value

Holdings 314 stocks · $34.0B


TSLA Tesla Inc.	10.82%	14,213,133	$3.7B	Reduce -2.5%
ACGL Arch Capital Group Ltd.	5.64%	19,966,752	$1.9B	Reduce -2.4%
IT Gartner Inc.	4.65%	3,771,609	$1.6B	Reduce -3.7%
CSGP Costar Group Inc.	4.43%	19,032,522	$1.5B	Reduce -0.9%
MSCI MSCI Inc.	3.44%	2,071,653	$1.2B	Reduce -2.8%
GWRE Guidewire Software Inc.	3.12%	5,667,682	$1.1B	Reduce -4.2%
FDS Factset Research Systems Inc.	3.00%	2,248,026	$1.0B	Reduce -4.6%
IDXX Idexx Laboratories Inc.	2.54%	2,059,777	$865.0M	Add +2.7%
KNSL Kinsale Capital Group Inc.	2.49%	1,738,858	$846.3M	Add +0.7%
MTN Vail Resorts Inc.	2.48%	5,284,222	$845.6M	Reduce -0.1%
H Hyatt Hotels Corp. Class A	2.08%	5,788,963	$709.1M	Add +4.3%
CHH Choice Hotels Intl Inc.	1.82%	4,673,034	$620.5M	Reduce -0.2%
SCHW Schwab (charles) Corp.	1.66%	7,224,168	$565.5M	Add +0.1%
RRR Red Rock Resorts Inc. Class A	1.48%	11,602,411	$503.2M	Add +2.2%
SPOT Spotify Technology SA	1.43%	887,956	$488.4M	Reduce -1.0%
PRI Primerica Inc.	1.34%	1,603,930	$456.4M	Reduce -3.1%
MORN Morningstar Inc.	1.14%	1,299,508	$389.7M	Reduce -0.4%
GLPI Gaming and Leisure Propertie	1.14%	7,594,545	$386.6M	Reduce -2.9%
VRSK Verisk Analytics Inc.	1.06%	1,212,494	$360.9M	Reduce -3.2%
MTD Mettler-Toledo International	0.97%	280,925	$331.7M	Reduce -0.0%
NVDA Nvidia Corp.	0.91%	2,872,061	$311.3M	Add +0.9%
ANSS Ansys Inc.	0.79%	852,310	$269.8M	Reduce -39.8%
FIGS Figs Inc. Class A	0.79%	58,671,584	$269.3M	Add +90.3%
IRDM Iridium Communications Inc.	0.74%	9,271,284	$253.3M	Reduce -13.9%
SHOP Shopify Inc. Class A	0.71%	2,519,934	$240.6M	Reduce -2.4%
VRT Vertiv Holdings Co. Class A	0.63%	2,966,603	$214.2M	Add +7.9%
SITE Siteone Landscape Supply Inc.	0.61%	1,699,711	$206.4M	Add +2.8%
AMZN Amazon.com Inc.	0.60%	1,080,478	$205.6M	Add +0.0%
WELL Welltower Inc.	0.59%	1,322,247	$202.6M	Add +14.8%
BABA Alibaba Group Holding-SP ADR	0.59%	1,522,815	$201.4M	Add +6.2%
TECH Bio-Techne Corp.	0.56%	3,275,806	$192.1M	Reduce -20.8%
HLI Houlihan Lokey Inc.	0.54%	1,144,179	$184.8M	No change
BIRK Birkenstock Holding PLC	0.54%	4,024,351	$184.5M	Add +19.8%
DAY Dayforce Inc.	0.54%	3,140,432	$183.2M	Reduce -10.9%
CBRE CBRE Group Inc. Class A	0.52%	1,362,945	$178.2M	Reduce -2.0%
ONON On Holding AG Class A filed as ON HLDG AG	0.52%	4,007,218	$176.0M	Add +26.9%
META Meta Platforms Inc. Class A	0.48%	281,113	$162.0M	Add +0.0%
FICO Fair Isaac Corp.	0.47%	86,240	$159.0M	Reduce -7.8%
BFAM Bright Horizons Family Solut	0.47%	1,250,197	$158.8M	Reduce -19.8%
CNS Cohen & Steers Inc.	0.46%	1,943,882	$156.0M	Reduce -3.2%
AMT American Tower Corp.	0.45%	699,676	$152.2M	New
IBKR Interactive Brokers Gro Class A	0.44%	913,967	$151.3M	No change
ROP Roper Technologies Inc.	0.44%	253,492	$149.5M	Add +0.1%
TDG Transdigm Group Inc.	0.44%	107,844	$149.2M	No change
INTA Intapp Inc.	0.43%	2,510,962	$146.6M	Add +1.1%
CWAN Clearwater Analytics HDS-A	0.43%	5,428,892	$145.5M	Add +1.9%
GTLS Chart Industries Inc.	0.40%	951,203	$137.3M	Reduce -0.1%
KTOS Kratos Defense & Security	0.40%	4,609,546	$136.9M	Add +5.4%
MSFT Microsoft Corp.	0.40%	364,015	$136.6M	Reduce -36.8%
BWIN Baldwin Insurance Group Inc./ filed as THE BALDWIN INSURANCE GRP IN	0.40%	3,010,000	$134.5M	No change
MELI MercadoLibre Inc.	0.37%	65,366	$127.5M	Add +12.3%
ARGX Argenx SE - ADR	0.37%	213,400	$126.3M	Reduce -11.9%
ICLR Icon PLC	0.36%	704,485	$123.3M	Reduce -4.0%
APH Amphenol Corp. Class A	0.36%	1,853,052	$121.5M	Add +0.1%
CPNG Coupang Inc.	0.36%	5,512,511	$120.9M	Reduce -4.3%
YMM Full Truck Alliance -SPN ADR	0.35%	9,215,706	$117.7M	Reduce -8.6%
JLL Jones Lang Lasalle Inc.	0.34%	471,841	$117.0M	Add +12.3%
EQIX Equinix Inc.	0.33%	139,288	$113.6M	Reduce -52.2%
PLNT Planet Fitness Inc. Class A	0.33%	1,150,000	$111.1M	Reduce -8.0%
TSM Taiwan Semiconductor-SP ADR	0.31%	643,097	$106.8M	Reduce -26.7%
BN Brookfield Corp.	0.31%	2,016,864	$105.7M	Reduce -15.7%
RBC RBC Bearings Inc.	0.30%	321,907	$103.6M	Reduce -0.1%
TTD Trade Desk Inc./the Class A filed as THE TRADE DESK INC	0.30%	1,870,626	$102.4M	Add +15.8%
PAR Par Technology Corp.	0.29%	1,613,953	$99.0M	Add +51.5%
NET Cloudflare Inc. Class A	0.28%	834,882	$94.1M	Reduce -7.0%
TREX Trex Company Inc.	0.27%	1,610,258	$93.6M	Reduce -25.2%
WST West Pharmaceutical Services	0.27%	416,148	$93.2M	Reduce -4.1%
DKNG Draftkings Inc. Class A	0.27%	2,740,463	$91.0M	Add +9.7%
FND Floor & Decor Holdings Inc. Class A	0.27%	1,126,717	$90.7M	Add +0.1%
FWONK Liberty Media Corp. Class C	0.26%	1,000,000	$90.0M	No change
EFOR Everforth Inc. filed as ASGN INC	0.26%	1,416,680	$89.3M	Reduce -9.8%
PLD Prologis Inc.	0.26%	792,536	$88.6M	New
CAKE The Cheesecake Factory Inc.	0.26%	1,800,000	$87.6M	Reduce -10.0%
AVGO Broadcom Inc.	0.25%	512,071	$85.7M	Add +5.7%
DRVN Driven Brands Holdings Inc.	0.25%	5,000,000	$85.7M	Add +5.3%
JBTM JBT Marel Corp.	0.25%	700,000	$85.5M	No change
VEEV Veeva Systems Inc. Class A	0.25%	368,180	$85.3M	Reduce -5.9%
TTAN Servicetitan Inc. Class A	0.25%	889,075	$84.6M	Add +29.9%
PWR Quanta Services Inc.	0.24%	325,868	$82.8M	Add +0.8%
LLYVK Liberty Media Corp.-Liberty-C	0.24%	1,189,358	$81.0M	Add +4.2%
CYBR Cyberark Software Ltd./Israel	0.24%	237,537	$80.3M	Reduce -9.5%
KRMN Karman Holdings Inc.	0.24%	2,400,648	$80.2M	New
GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD	0.23%	3,067,405	$77.7M	Reduce -54.0%
ROL Rollins Inc.	0.23%	1,424,912	$77.0M	Reduce -8.0%
IBP Installed Building Products	0.22%	443,444	$76.0M	Reduce -3.3%
LVS Las Vegas Sands Corp.	0.22%	1,953,565	$75.5M	Add +20.1%
COO The Cooper Cos Inc.	0.22%	887,945	$74.9M	Reduce -1.9%
HEI.A Heico Corp. Class A	0.21%	346,699	$73.1M	No change
TRU Transunion	0.21%	871,618	$72.3M	Reduce -0.0%
AMH American Homes 4 Rent- A	0.21%	1,898,519	$71.8M	Add +167.5%
BAP Credicorp Ltd.	0.21%	383,588	$71.4M	Reduce -5.2%
WYNN WYNN Resorts Ltd.	0.21%	854,666	$71.4M	Add +682.2%
AAPL Apple Inc.	0.21%	320,866	$71.3M	Add +6.5%
BX Blackstone Inc.	0.21%	509,556	$71.2M	Reduce -35.1%
HLT Hilton Worldwide Holdings Inc.	0.21%	309,437	$70.4M	Reduce -3.2%
HQY Healthequity Inc.	0.20%	785,000	$69.4M	Add +0.6%
CG The Carlyle Group Inc.	0.20%	1,587,053	$69.2M	Reduce -15.0%
VMRK Vivmark Residential filed as EQUITY RESIDENTIAL	0.20%	959,081	$68.7M	Reduce -10.2%
PCOR Procore Technologies Inc.	0.20%	1,024,064	$67.6M	Add +3.1%
INSP Inspire Medical Systems Inc.	0.20%	422,693	$67.3M	Add +21.5%

Show all 314 holdings

Portfolio Sells Q4 2024 → Q1 2025


TSLA Tesla Inc.	Reduce -2.5%	10.82%	−4.40
ANSS Ansys Inc.	Reduce -39.8%	0.79%	−0.44
EQIX Equinix Inc.	Reduce -52.2%	0.33%	−0.38
DNUT Krispy Kreme Inc.	Reduce -72.1%	0.05%	−0.28
IT Gartner Inc.	Reduce -3.7%	4.65%	−0.25
MSFT Microsoft Corp.	Reduce -36.8%	0.40%	−0.23
DEI Douglas Emmett Inc.	Reduce -66.8%	0.10%	−0.21
TECH Bio-Techne Corp.	Reduce -20.8%	0.56%	−0.21
DLR Digital Realty Trust Inc.	Reduce -68.2%	0.08%	−0.20
GDS GDS Holdings Ltd. - ADR	Reduce -54.0%	0.23%	−0.18
NARI Inari Medical Inc.	Sold out	0.00%	−0.17
AZPN Aspen Technology Inc.	Sold out	0.00%	−0.16
EXPE Expedia Group Inc.	Reduce -74.2%	0.05%	−0.15
ALTR Altair Engineering Inc. Class A	Sold out	0.00%	−0.15
AXON Axon Enterprise Inc.	Reduce -62.9%	0.09%	−0.15
BX Blackstone Inc.	Reduce -35.1%	0.21%	−0.14
TSM Taiwan Semiconductor-SP ADR	Reduce -26.7%	0.31%	−0.13
IBTA Ibotta Inc. Class A	Sold out	0.00%	−0.13
DAY Dayforce Inc.	Reduce -10.9%	0.54%	−0.12
ARE Alexandria Real Estate Equit	Reduce -71.4%	0.05%	−0.12
TREX Trex Company Inc.	Reduce -25.2%	0.27%	−0.11
ILMN Illumina Inc.	Reduce -65.9%	0.03%	−0.11
VNO Vornado Realty Trust	Reduce -36.5%	0.17%	−0.10
WST West Pharmaceutical Services	Reduce -4.1%	0.27%	−0.09
WEX Wex Inc.	Sold out	0.00%	−0.09
KRC Kilroy Realty Corp.	Reduce -54.6%	0.06%	−0.09
MAC The Macerich Co.	Reduce -34.8%	0.15%	−0.09
MTN Vail Resorts Inc.	Reduce -0.1%	2.48%	−0.08
EFOR Everforth Inc.	Reduce -9.8%	0.26%	−0.08
NEOG Neogen Corp.	Reduce -11.1%	0.19%	−0.07
RDDT Reddit Inc. Class A	Reduce -95.3%	0.00%	−0.07
GTLS Chart Industries Inc.	Reduce -0.1%	0.40%	−0.07
IRDM Iridium Communications Inc.	Reduce -13.9%	0.74%	−0.06
LEN Lennar Corp. Class A	Reduce -47.7%	0.06%	−0.06
BZ Kanzhun Ltd. - ADR	Sold out	0.00%	−0.06
DHI D.R. Horton Inc.	Reduce -45.5%	0.07%	−0.06
NU Nu Holdings Ltd./Cayman Isl-A	Reduce -61.8%	0.04%	−0.05
NOW ServiceNow Inc.	Reduce -10.4%	0.15%	−0.05
BN Brookfield Corp.	Reduce -15.7%	0.31%	−0.04
CG The Carlyle Group Inc.	Reduce -15.0%	0.20%	−0.04
ASML ASML Holding NV-NY Reg SHS	Reduce -45.3%	0.06%	−0.04
ICLR Icon PLC	Reduce -4.0%	0.36%	−0.04
MRVI Maravai Lifesciences Hldgs-A	Sold out	0.00%	−0.03
CDNS Cadence Design SYS Inc.	Sold out	0.00%	−0.03
IRM Iron Mountain Inc.	Sold out	0.00%	−0.02
WIX Wix.com Ltd.	Reduce -13.7%	0.07%	−0.02
MA Mastercard Inc. Class A	Reduce -28.1%	0.14%	−0.02
IEX Idex Corp.	Reduce -14.9%	0.12%	−0.02
AAON Aaon Inc.	Sold out	0.00%	−0.02
BLDR Builders Firstsource Inc.	Sold out	0.00%	−0.02

Portfolio Buys Q4 2024 → Q1 2025


AMT American Tower Corp.	New	0.45%	+0.45
KNSL Kinsale Capital Group Inc.	Add +0.7%	2.49%	+0.41
IDXX Idexx Laboratories Inc.	Add +2.7%	2.54%	+0.40
FIGS Figs Inc. Class A	Add +90.3%	0.79%	+0.30
SCHW Schwab (charles) Corp.	Add +0.1%	1.66%	+0.28
BABA Alibaba Group Holding-SP ADR	Add +6.2%	0.59%	+0.28
PLD Prologis Inc.	New	0.26%	+0.26
KRMN Karman Holdings Inc.	New	0.24%	+0.24
WELL Welltower Inc.	Add +14.8%	0.59%	+0.22
WYNN WYNN Resorts Ltd.	Add +682.2%	0.21%	+0.19
CRH CRH PLC	New	0.15%	+0.15
AMH American Homes 4 Rent- A	Add +167.5%	0.21%	+0.14
TMHC Taylor Morrison Home Corp.	New	0.14%	+0.14
RRR Red Rock Resorts Inc. Class A	Add +2.2%	1.48%	+0.12
MELI MercadoLibre Inc.	Add +12.3%	0.37%	+0.12
IRT Independence Realty Trust Inc.	Add +81.3%	0.19%	+0.11
KTOS Kratos Defense & Security	Add +5.4%	0.40%	+0.10
WING Wingstop Inc.	New	0.10%	+0.10
ROP Roper Technologies Inc.	Add +0.1%	0.44%	+0.10
WMS Advanced Drainage Systems Inc.	New	0.10%	+0.10
RDNT Radnet Inc.	Add +1928.6%	0.10%	+0.10
BEKE Ke Holdings Inc.-ADR	New	0.09%	+0.09
PAR Par Technology Corp.	Add +51.5%	0.29%	+0.09
EXR Extra Space Storage Inc.	New	0.08%	+0.08
MPWR Monolithic Power Systems Inc.	Add +485.7%	0.08%	+0.07
ONON On Holding AG Class A	Add +26.9%	0.52%	+0.07
JLL Jones Lang Lasalle Inc.	Add +12.3%	0.34%	+0.07
LI Li Auto Inc. - ADR	New	0.07%	+0.07
CHDN Churchill Downs Inc.	New	0.07%	+0.07
SNOW Snowflake Inc.	Add +49.1%	0.18%	+0.07
TTAN Servicetitan Inc. Class A	Add +29.9%	0.25%	+0.07
VMC Vulcan Materials Co.	Add +57.4%	0.16%	+0.06
LPLA LPL Financial Holdings Inc.	Add +38.0%	0.16%	+0.06
EXAS Exact Sciences Corp.	Add +64.9%	0.19%	+0.06
DRVN Driven Brands Holdings Inc.	Add +5.3%	0.25%	+0.05
XPEV Xpeng Inc. - ADR	New	0.05%	+0.05
META Meta Platforms Inc. Class A	Add +0.0%	0.48%	+0.05
BIRK Birkenstock Holding PLC	Add +19.8%	0.54%	+0.05
CWAN Clearwater Analytics HDS-A	Add +1.9%	0.43%	+0.05
NPO Enpro Inc.	Add +66.3%	0.11%	+0.05
IOT Samsara Inc. Class A	Add +62.4%	0.12%	+0.05
SAIL Sailpoint Inc.	New	0.05%	+0.05
LOAR Loar Holdings Inc.	Add +148.7%	0.07%	+0.04
SITE Siteone Landscape Supply Inc.	Add +2.8%	0.61%	+0.04
EGP Eastgroup Properties Inc.	New	0.04%	+0.04
TME Tencent Music Entertainm-ADR	Add +1.4%	0.13%	+0.04
NVMI Nova Ltd.	Add +82.5%	0.08%	+0.04
LLY Eli Lilly & Co.	Add +64.2%	0.08%	+0.04
FROG Jfrog Ltd.	Add +37.9%	0.09%	+0.04
TW Tradeweb Markets Inc. Class A	Add +0.3%	0.17%	+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