Baron Capital (BAMCO)

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

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), Ron Baron's Baron Capital (BAMCO) reported 332 stock positions worth $37.5 billion. Its top holding was Tesla (TSLA) at 8.1% of the portfolio, followed by Gartner (IT, 5.4%) and Arch Capital (ACGL, 5.2%). Compared with Q4 2023, it opened 16 new positions, sold out of 14, added to 102 and reduced 154. The biggest buy was Spotify Technology (SPOT, shares +28%) 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: $37.5B (Q1 2024)
SEC Filing: 0001017918-24-000010 ↗ filed May 15, 2024

Holdings Value

Holdings 332 stocks · $37.5B


TSLA Tesla Inc.	8.07%	17,217,795	$3.0B	Reduce -2.8%
IT Gartner Inc.	5.40%	4,250,733	$2.0B	Reduce -4.0%
ACGL Arch Capital Group Ltd.	5.18%	21,024,711	$1.9B	Reduce -1.3%
CSGP Costar Group Inc.	4.98%	19,337,618	$1.9B	Reduce -0.3%
MSCI MSCI Inc.	3.37%	2,254,035	$1.3B	Reduce -1.1%
FDS Factset Research Systems Inc.	3.31%	2,737,284	$1.2B	Reduce -1.4%
IDXX Idexx Laboratories Inc.	3.03%	2,104,951	$1.1B	Reduce -8.5%
MTN Vail Resorts Inc.	2.85%	4,795,287	$1.1B	Reduce -2.5%
KNSL Kinsale Capital Group Inc.	2.69%	1,920,920	$1.0B	Reduce -0.2%
H Hyatt Hotels Corp. Class A	2.29%	5,377,052	$858.3M	Reduce -0.5%
GWRE Guidewire Software Inc.	1.93%	6,215,742	$725.4M	Reduce -2.3%
RRR Red Rock Resorts Inc. Class A	1.66%	10,409,100	$622.7M	Add +0.5%
ANSS Ansys Inc.	1.63%	1,756,370	$609.7M	Reduce -11.6%
CHH Choice Hotels Intl Inc.	1.60%	4,754,307	$600.7M	Reduce -1.2%
SCHW Schwab (charles) Corp.	1.43%	7,432,213	$537.6M	Reduce -8.6%
PRI Primerica Inc.	1.28%	1,904,478	$481.8M	Reduce -0.2%
MTD Mettler-Toledo International	1.08%	304,583	$405.5M	Reduce -6.8%
MORN Morningstar Inc.	1.08%	1,308,671	$403.6M	Reduce -1.0%
NVDA Nvidia Corp.	1.07%	446,166	$403.1M	Reduce -19.9%
VRT Vertiv Holdings Co. Class A	1.06%	4,850,000	$396.1M	Reduce -28.1%
GLPI Gaming and Leisure Propertie	1.01%	8,264,702	$380.8M	Reduce -1.3%
WST West Pharmaceutical Services	0.94%	891,945	$353.0M	Reduce -10.6%
TECH Bio-Techne Corp.	0.94%	4,998,210	$351.8M	Reduce -6.6%
ICLR Icon PLC	0.87%	969,991	$325.9M	Reduce -1.8%
IRDM Iridium Communications Inc.	0.83%	11,925,775	$312.0M	Reduce -15.1%
VRSK Verisk Analytics Inc.	0.82%	1,305,629	$307.8M	Reduce -5.4%
SITE Siteone Landscape Supply Inc.	0.70%	1,495,837	$261.1M	Add +0.0%
MSFT Microsoft Corp.	0.66%	586,917	$246.9M	Add +8.7%
FND Floor & Decor Holdings Inc. Class A	0.63%	1,832,533	$237.5M	Reduce -18.8%
EFOR Everforth Inc. filed as ASGN INC	0.62%	2,227,200	$233.3M	No change
TOL Toll Brothers Inc.	0.62%	1,793,790	$232.1M	Reduce -0.4%
TREX Trex Company Inc.	0.61%	2,297,372	$229.2M	Reduce -8.3%
SPOT Spotify Technology SA	0.61%	864,584	$228.2M	Add +28.3%
DAY Dayforce Inc.	0.61%	3,439,154	$227.7M	Reduce -3.5%
IBP Installed Building Products	0.55%	795,178	$205.7M	Reduce -13.2%
GTLS Chart Industries Inc.	0.51%	1,170,013	$192.7M	Add +2.2%
AMZN Amazon.com Inc.	0.51%	1,065,160	$192.1M	Add +4.0%
BFAM Bright Horizons Family Solut	0.50%	1,662,978	$188.5M	Reduce -3.0%
FICO Fair Isaac Corp.	0.46%	136,818	$171.0M	Reduce -9.4%
SHOP Shopify Inc. Class A	0.45%	2,204,973	$170.2M	Reduce -0.5%
HLI Houlihan Lokey Inc.	0.44%	1,298,140	$166.4M	Reduce -0.0%
TTD Trade Desk Inc./the Class A filed as THE TRADE DESK INC	0.44%	1,901,685	$166.2M	Reduce -1.4%
CNS Cohen & Steers Inc.	0.44%	2,143,035	$164.8M	Reduce -1.6%
EQIX Equinix Inc.	0.44%	198,503	$163.8M	Reduce -16.0%
ARE Alexandria Real Estate Equit	0.41%	1,203,016	$155.1M	Reduce -2.4%
ROP Roper Technologies Inc.	0.40%	264,763	$148.5M	Reduce -6.7%
DNUT Krispy Kreme Inc.	0.40%	9,734,467	$148.3M	Add +2.6%
TSM Taiwan Semiconductor-SP ADR	0.39%	1,066,264	$145.1M	Reduce -50.7%
CPNG Coupang Inc.	0.38%	7,942,062	$141.3M	Add +9.6%
BIRK Birkenstock Holding PLC	0.37%	2,974,458	$140.5M	Add +1.4%
META Meta Platforms Inc. Class A	0.37%	282,937	$137.4M	Add +8.8%
DXCM Dexcom Inc.	0.36%	967,983	$134.3M	Reduce -3.0%
FIGS Figs Inc. Class A	0.34%	25,731,980	$128.1M	Add +2.0%
BYD Boyd Gaming Corp.	0.34%	1,899,344	$127.9M	Add +4.0%
TDG Transdigm Group Inc.	0.33%	100,000	$123.2M	Reduce -20.0%
ONON On Holding AG Class A filed as ON HLDG AG	0.32%	3,394,195	$120.1M	Reduce -3.7%
ALTR Altair Engineering Inc. Class A	0.32%	1,385,507	$119.4M	Reduce -12.6%
PLD Prologis Inc.	0.31%	901,660	$117.4M	Reduce -4.1%
NEOG Neogen Corp.	0.31%	7,304,967	$115.3M	Add +10.3%
AZPN Aspen Technology Inc.	0.31%	539,363	$115.0M	Reduce -2.7%
LEN Lennar Corp. Class A	0.30%	648,867	$111.6M	Add +3.8%
DKNG Draftkings Inc. Class A	0.29%	2,392,965	$108.7M	Reduce -0.2%
VEEV Veeva Systems Inc. Class A	0.29%	466,154	$108.0M	Reduce -6.8%
APH Amphenol Corp. Class A	0.29%	935,817	$107.9M	Reduce -7.0%
BABA Alibaba Group Holding-SP ADR	0.28%	1,477,413	$106.9M	Reduce -10.4%
CBRE CBRE Group Inc. Class A	0.28%	1,085,594	$105.6M	Reduce -4.7%
ARGX Argenx SE - ADR	0.28%	266,674	$105.0M	Reduce -7.2%
BX Blackstone Inc.	0.28%	798,377	$104.9M	Add +8.9%
DHI D.R. Horton Inc.	0.28%	635,880	$104.6M	No change
JBI Janus International Group Inc.	0.28%	6,871,661	$104.0M	No change
CDW CDW Corp.	0.27%	398,721	$102.0M	Reduce -7.2%
INDI Indie Semiconductor Inc. Class A	0.27%	14,285,896	$101.1M	Add +28.0%
MGM MGM Resorts International	0.26%	2,101,065	$99.2M	Add +3.6%
MELI MercadoLibre Inc.	0.26%	64,165	$97.0M	Reduce -5.3%
COO The Cooper Cos Inc.	0.26%	943,282	$95.7M	Reduce -6.1%
CWAN Clearwater Analytics HDS-A	0.25%	5,359,172	$94.8M	Add +30.8%
BWIN Baldwin Insurance Group Inc./ filed as BRP GROUP INC	0.25%	3,259,934	$94.3M	Reduce 0.0%
RBC RBC Bearings Inc.	0.25%	345,790	$93.5M	Reduce -8.1%
CG The Carlyle Group Inc.	0.24%	1,944,402	$91.2M	Reduce -0.1%
NU Nu Holdings Ltd./Cayman Isl-A filed as NU HLDGS LTD	0.24%	7,494,909	$89.4M	Add +2.5%
INTA Intapp Inc.	0.24%	2,583,231	$88.6M	New
CRWD CrowdStrike Holdings Inc. Class A	0.23%	273,283	$87.6M	Reduce -5.3%
DEI Douglas Emmett Inc.	0.23%	6,277,081	$87.1M	No change
IBKR Interactive Brokers Gro Class A	0.23%	764,968	$85.5M	Add +3.7%
PWR Quanta Services Inc.	0.22%	323,240	$84.0M	Reduce -7.1%
PLNT Planet Fitness Inc. Class A	0.22%	1,325,000	$83.0M	Add +10.4%
XP XP Inc. Class A	0.22%	3,228,598	$82.8M	Add +26.7%
NET Cloudflare Inc. Class A	0.22%	845,046	$81.8M	Reduce -9.7%
IEX Idex Corp.	0.22%	332,322	$81.1M	Reduce -13.8%
DAVA Endava PLC- Spon ADR	0.21%	2,118,668	$80.6M	Reduce -10.1%
WYNN WYNN Resorts Ltd.	0.21%	788,335	$80.6M	Add +5.1%
KTOS Kratos Defense & Security	0.21%	4,374,077	$80.4M	Add +13.2%
REXR Rexford Industrial Realty Inc.	0.21%	1,587,446	$79.8M	Reduce -2.9%
CAKE The Cheesecake Factory Inc.	0.21%	2,200,000	$79.5M	No change
FWONK Liberty Media Corp. Class C	0.21%	1,200,000	$78.7M	No change
YMM Full Truck Alliance -SPN ADR	0.21%	10,819,188	$78.7M	Add +2.3%
AXON Axon Enterprise Inc.	0.21%	251,277	$78.6M	Reduce -12.1%
ROL Rollins Inc.	0.21%	1,676,374	$77.6M	Reduce -7.1%
BIDU Baidu Inc. - Spon ADR	0.21%	733,146	$77.2M	Reduce -3.3%
TRU Transunion	0.20%	932,094	$74.4M	Reduce -7.0%

Show all 332 holdings

Portfolio Sells Q4 2023 → Q1 2024


TSLA Tesla Inc.	Reduce -2.8%	8.07%	−3.65
IRDM Iridium Communications Inc.	Reduce -15.1%	0.83%	−0.71
IDXX Idexx Laboratories Inc.	Reduce -8.5%	3.03%	−0.37
PENN Penn Entertainment Inc.	Reduce -93.1%	0.02%	−0.34
ANSS Ansys Inc.	Reduce -11.6%	1.63%	−0.30
VAC Marriott Vacations World	Reduce -90.2%	0.04%	−0.29
DAVA Endava PLC- Spon ADR	Reduce -10.1%	0.21%	−0.27
FDS Factset Research Systems Inc.	Reduce -1.4%	3.31%	−0.21
TSM Taiwan Semiconductor-SP ADR	Reduce -50.7%	0.39%	−0.21
AXONICS INC	Reduce -61.8%	0.13%	−0.17
TECH Bio-Techne Corp.	Reduce -6.6%	0.94%	−0.16
VRSN Verisign Inc.	Reduce -32.7%	0.20%	−0.12
GLPI Gaming and Leisure Propertie	Reduce -1.3%	1.01%	−0.09
GOOG Alphabet Inc. Class C	Reduce -68.2%	0.04%	−0.07
EQIX Equinix Inc.	Reduce -16.0%	0.44%	−0.07
MANU Manchester United PLC Class A	Reduce -91.6%	0.00%	−0.07
MSCI MSCI Inc.	Reduce -1.1%	3.37%	−0.07
SHLS Shoals Technologies Group -A	Reduce -72.2%	0.01%	−0.06
VRSK Verisk Analytics Inc.	Reduce -5.4%	0.82%	−0.06
SCHW Schwab (charles) Corp.	Reduce -8.6%	1.43%	−0.06
BABA Alibaba Group Holding-SP ADR	Reduce -10.4%	0.28%	−0.06
NVTS Navitas Semiconductor Corp.	Reduce -58.1%	0.02%	−0.05
MKTX Marketaxess Holdings Inc.	Sold out	0.00%	−0.05
SITM Sitime Corp.	Reduce -48.7%	0.03%	−0.05
SNOW Snowflake Inc.	Reduce -2.1%	0.19%	−0.05
CLVT Clarivate PLC	Sold out	0.00%	−0.05
AFYA Afya Ltd. Class A	Reduce -9.5%	0.15%	−0.04
DT Dynatrace Inc.	Reduce -27.3%	0.07%	−0.04
LFUS Littelfuse Inc.	Reduce -77.3%	0.01%	−0.04
BZ Kanzhun Ltd. - ADR	Reduce -35.1%	0.09%	−0.04
EXR Extra Space Storage Inc.	Reduce -80.3%	0.01%	−0.04
MRCY Mercury Systems Inc.	Reduce -2.1%	0.15%	−0.04
FND Floor & Decor Holdings Inc. Class A	Reduce -18.8%	0.63%	−0.04
CZR Caesars Entertainment Inc.	Reduce -23.2%	0.09%	−0.04
ALTR Altair Engineering Inc. Class A	Reduce -12.6%	0.32%	−0.04
RBC RBC Bearings Inc.	Reduce -8.1%	0.25%	−0.04
BIDU Baidu Inc. - Spon ADR	Reduce -3.3%	0.21%	−0.03
SDGR Schrodinger Inc.	Reduce -90.8%	0.00%	−0.03
REXR Rexford Industrial Realty Inc.	Reduce -2.9%	0.21%	−0.03
DAY Dayforce Inc.	Reduce -3.5%	0.61%	−0.03
GTLB Gitlab Inc. Class A	Reduce -6.7%	0.19%	−0.03
STNE Stoneco Ltd. Class A	Sold out	0.00%	−0.03
SBAC SBA Communications Corp.	Reduce -14.1%	0.08%	−0.03
RGEN Repligen Corp.	Reduce -14.5%	0.19%	−0.03
MELI MercadoLibre Inc.	Reduce -5.3%	0.26%	−0.03
QLYS Qualys Inc.	Sold out	0.00%	−0.02
S Sentinelone Inc. Class A	Reduce -0.1%	0.13%	−0.02
LU Lufax Holding Ltd.-ADR	Reduce -68.5%	0.02%	−0.02
PLD Prologis Inc.	Reduce -4.1%	0.31%	−0.02
ICHR Ichor Holdings Ltd.	Sold out	0.00%	−0.02

Portfolio Buys Q4 2023 → Q1 2024


SPOT Spotify Technology SA	Add +28.3%	0.61%	+0.27
INTA Intapp Inc.	New	0.24%	+0.24
RRR Red Rock Resorts Inc. Class A	Add +0.5%	1.66%	+0.19
MASI Masimo Corp.	New	0.14%	+0.14
META Meta Platforms Inc. Class A	Add +8.8%	0.37%	+0.12
MSFT Microsoft Corp.	Add +8.7%	0.66%	+0.12
TME Tencent Music Entertainm-ADR	New	0.11%	+0.11
ALAB Astera Labs Inc.	New	0.10%	+0.10
PCOR Procore Technologies Inc.	Add +756.8%	0.11%	+0.10
GTLS Chart Industries Inc.	Add +2.2%	0.51%	+0.10
AMZN Amazon.com Inc.	Add +4.0%	0.51%	+0.10
VKTX Viking Therapeutics Inc.	Add +59.1%	0.11%	+0.09
AVGO Broadcom Inc.	Add +13754.9%	0.08%	+0.08
NU Nu Holdings Ltd./Cayman Isl-A	Add +2.5%	0.24%	+0.08
EXPO Exponent Inc.	New	0.07%	+0.07
VMC Vulcan Materials Co.	Add +190.5%	0.09%	+0.07
IBKR Interactive Brokers Gro Class A	Add +3.7%	0.23%	+0.06
CPNG Coupang Inc.	Add +9.6%	0.38%	+0.06
HLT Hilton Worldwide Holdings Inc.	Add +43.3%	0.14%	+0.06
RH RH	Add +128.3%	0.09%	+0.06
LEN Lennar Corp. Class A	Add +3.8%	0.30%	+0.05
SITE Siteone Landscape Supply Inc.	Add +0.0%	0.70%	+0.05
NCNO Ncino Inc.	Add +83.7%	0.09%	+0.05
XP XP Inc. Class A	Add +26.7%	0.22%	+0.04
JBTM JBT Marel Corp.	Add +23.8%	0.18%	+0.04
STVN Stevanato Group SPA	Add +37.1%	0.11%	+0.04
RDDT Reddit Inc. Class A	New	0.04%	+0.04
ALGM Allegro Microsystems Inc.	Add +477.6%	0.05%	+0.04
ACLX Arcellx Inc.	Add +292.1%	0.05%	+0.04
BYD Boyd Gaming Corp.	Add +4.0%	0.34%	+0.04
ESTA Establishment Labs Holdings	Add +28.4%	0.06%	+0.04
SILK Silk Road Medical Inc.	Add +28.0%	0.07%	+0.03
CDNA Caredx Inc.	New	0.03%	+0.03
CWAN Clearwater Analytics HDS-A	Add +30.8%	0.25%	+0.03
WYNN WYNN Resorts Ltd.	Add +5.1%	0.21%	+0.03
LOW Lowe's Cos Inc.	Add +10.3%	0.15%	+0.03
MA Mastercard Inc. Class A	Add +7.6%	0.17%	+0.03
ONT Onterris Inc.	Add +9.8%	0.12%	+0.03
WEX Wex Inc.	Add +0.1%	0.16%	+0.03
ODD Oddity Tech Ltd. Class A	Add +40.4%	0.12%	+0.03
AMD Advanced Micro Devices	Add +9.3%	0.11%	+0.03
INDI Indie Semiconductor Inc. Class A	Add +28.0%	0.27%	+0.03
SPT Sprout Social Inc. Class A	Add +25.8%	0.16%	+0.03
APO Apollo Global Management Inc.	Add +348.3%	0.03%	+0.03
GOOGL Alphabet Inc. Class A	Add +901.3%	0.03%	+0.02
V Visa Inc. Class A	Add +12.3%	0.14%	+0.02
BX Blackstone Inc.	Add +8.9%	0.28%	+0.02
MRVI Maravai Lifesciences Hldgs-A	Add +43.1%	0.05%	+0.02
MGM MGM Resorts International	Add +3.6%	0.26%	+0.02
LLYVK Liberty Media Corp.-Liberty-C	Add +5.6%	0.11%	+0.02

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