Follow-The-Filings

Featured 13F manager

BAMCO Inc (Baron Capital) Ron Baron

New York, NY 20 processed 13Fs on this site · 2021 Q3–2026 Q2

  • $66.6B
  • 345 Positions
  • 2026 Q2
  • +101.2% QoQ
  • Top 5 52.4%

Ron Baron files BAMCO Inc (Baron Capital) as a Form 13F. The latest book is 2026 Q2 at $66.6B, up 101.2% QoQ, led by Space Exploration Techn ·, Tesla, and MSCI Inc.

Portfolio

2026 Q2 · filed 8/14/2026 · 345 long · top 12 shown

top 5 52.4% · top 10 60.9%

AUM over time

2026 Q2 $66.6B +101.2% QoQ
2021 Q3 · $44.1B 2021 Q3 · $44.1B
Q3 2021
2021 Q4 · $47.1B · +6.8% QoQ 2021 Q4 · $47.1B · +6.8% QoQ
Q4
2022 Q1 · $40.7B · −13.6% QoQ 2022 Q1 · $40.7B · −13.6% QoQ
Q1 2022
2022 Q2 · $31.1B · −23.6% QoQ 2022 Q2 · $31.1B · −23.6% QoQ
Q2
2022 Q3 · $31B · −0.6% QoQ 2022 Q3 · $31B · −0.6% QoQ
Q3
2022 Q4 · $29.8B · −3.8% QoQ 2022 Q4 · $29.8B · −3.8% QoQ
Q4
2023 Q1 · $33.3B · +11.9% QoQ 2023 Q1 · $33.3B · +11.9% QoQ
Q1 2023
2023 Q2 · $36.1B · +8.4% QoQ 2023 Q2 · $36.1B · +8.4% QoQ
Q2
2023 Q3 · $34.4B · −4.7% QoQ 2023 Q3 · $34.4B · −4.7% QoQ
Q3
2023 Q4 · $37.5B · +9.1% QoQ 2023 Q4 · $37.5B · +9.1% QoQ
Q4
2024 Q1 · $37.5B · −0.1% QoQ 2024 Q1 · $37.5B · −0.1% QoQ
Q1 2024
2024 Q2 · $34.9B · −6.9% QoQ 2024 Q2 · $34.9B · −6.9% QoQ
Q2
2024 Q3 · $37.7B · +8.0% QoQ 2024 Q3 · $37.7B · +8.0% QoQ
Q3
2024 Q4 · $38.7B · +2.6% QoQ 2024 Q4 · $38.7B · +2.6% QoQ
Q4
2025 Q1 · $34B · −12.0% QoQ 2025 Q1 · $34B · −12.0% QoQ
Q1 2025
2025 Q2 · $36.9B · +8.3% QoQ 2025 Q2 · $36.9B · +8.3% QoQ
Q2
2025 Q3 · $37.7B · +2.2% QoQ 2025 Q3 · $37.7B · +2.2% QoQ
Q3
2025 Q4 · $36.9B · −2.1% QoQ 2025 Q4 · $36.9B · −2.1% QoQ
Q4
2026 Q1 · $33.1B · −10.2% QoQ 2026 Q1 · $33.1B · −10.2% QoQ
Q1 2026
2026 Q2 · $66.6B · +101.2% QoQ 2026 Q2 · $66.6B · +101.2% QoQ
Q2

Book

2023 Q3 2023 Q2 · filed 14 Nov · long equity

TSLA - Tesla 12.85% Reduce −0.2% 17,668,945 $250.22 $4.4B −27,868 −$211M
ACGL - Arch Cap Group 4.92% Reduce −0.3% 21,222,928 $79.71 $1.7B −73,872 +$98M
IT - Gartner 4.65% Reduce −1.3% 4,656,387 $343.61 $1.6B −63,209 −$53M
CSGP - Costar Group 4.29% Add +0.5% 19,196,502 $76.89 $1.5B +91,399 −$224M
FDS - Factset Resh Sys 3.50% Add +0.3% 2,751,596 $437.26 $1.2B +8,862 +$104M
MSCI - MSCI Inc · CL A 3.37% Add +0.7% 2,260,105 $513.08 $1.2B +15,184 +$106M
MTN - Vail Resorts 3.04% Add +1.1% 4,721,214 $221.89 $1B +51,630 −$128M
IDXX - Idexx Labs 2.97% Reduce −1.7% 2,336,330 $437.27 $1B −40,302 −$172M
KNSL - Kinsale Cap Group 2.39% Reduce −3.4% 1,985,089 $414.13 $822M −70,911 +$53M
IRDM - Iridium Communications 1.93% Add +0.4% 14,583,317 $45.49 $663M +58,818 −$239M
ANSS - Ansys 1.73% Add +0.6% 2,002,717 $297.55 $596M +11,774 −$62M
CHH - Choice Hotels Intl 1.65% Add +0.2% 4,634,126 $122.51 $568M +7,750 +$24M
H - Hyatt Hotels · CL A 1.64% Add +0.1% 5,327,279 $106.08 $565M +3,857 −$45M
GWRE - Guidewire Software 1.63% Add +0.6% 6,238,882 $90.00 $561M +36,895 +$90M
SCHW - Schwab Charles 1.29% Add +0.5% 8,102,475 $54.90 $445M +42,588 −$12M
RRR - Red Rock Resorts · CL A 1.17% Add +10.8% 9,856,963 $41.00 $404M +962,841 −$12M
WST - West Pharmaceutical Svsc 1.14% Reduce −1.0% 1,050,183 $375.21 $394M −10,383 −$12M
GLPI - Gaming & Leisure Pptys 1.11% Reduce −0.1% 8,418,436 $45.55 $383M −6,300 −$25M
PRI - Primerica 1.09% Reduce −1.1% 1,925,651 $194.01 $374M −21,044 −$11M
MTD - Mettler Toledo 1.07% Reduce −0.6% 332,895 $1,108 $369M −1,955 −$70M
TECH - Bio Techne 1.06% Reduce −0.1% 5,375,959 $68.07 $366M −4,515 −$73M
VRSK - Verisk Analytics · CL A 0.92% Add +0.1% 1,346,080 $236.24 $318M +1,310 +$14M
MORN - Morningstar 0.90% Add +8.0% 1,326,608 $234.24 $311M +98,191 +$70M
MAR - Marriott 0.80% Reduce −4.4% 2,728,652 $100.63 $275M −126,309 −$76M
NVDA - Nvidia 0.78% Add +12.9% 616,823 $434.99 $268M +70,597 +$37M
VRT - Vertiv · CL A 0.77% Reduce −7.2% 7,100,000 $37.20 $264M −550,000 +$75M
ICLR - ICON 0.71% Reduce −0.1% 987,006 $246.25 $243M −759 −$4M
DAY - Ceridian Hcm 0.70% Add +0.7% 3,534,834 $67.85 $240M +23,252 +$5M
BABA - Alibaba Group 0.68% Reduce −0.2% 2,705,448 $86.74 $235M −4,717 +$9M
SITE - Siteone Landscape Supply 0.67% Reduce −2.1% 1,420,607 $163.45 $232M −30,115 −$11M
TSM - Taiwan Semiconductor Mfg 0.65% Reduce −29.5% 2,569,980 $86.90 $223M −1,073,460 −$144M
FND - Floor & Decor · CL A 0.61% Reduce −5.2% 2,330,135 $90.50 $211M −128,951 −$45M
EFOR - ASGN 0.52% Hold 2,210,162 $81.68 $181M
I3N - Chart Inds 0.51% Reduce −0.4% 1,046,057 $169.12 $177M −3,881 +$9M
EQIX - Equinix 0.50% Add +17.1% 235,014 $726.26 $171M +34,374 +$13M
TREX — 0.49% Reduce −4.7% 2,733,397 $61.63 $168M −134,983 −$20M
BFAM — 0.48% Reduce −8.7% 2,022,572 $81.46 $165M −192,910 −$40M
MSFT - Microsoft 0.45% Add +2.3% 489,516 $315.75 $155M +10,844 −$8M
FIGS - FIGS Inc · CL A 0.43% Add +6.2% 25,032,830 $5.90 $148M +1,470,706 −$47M
FICO - Fair Isaac 0.42% Hold 167,385 $868.53 $145M
TTD - The Trade Desk · CL A 0.42% Reduce −0.7% 1,849,480 $78.15 $145M −12,101 +$786K
ARGX - Argenx Se 0.41% Add +15.1% 287,991 $491.63 $142M +37,723 +$44M
CNS - Cohen & Steers 0.41% Reduce −9.0% 2,249,784 $62.69 $141M −222,162 −$2M
PENN - Penn Entertainment 0.41% Reduce −17.5% 6,138,520 $22.95 $141M −1,298,955 −$38M
Endava 0.41% Reduce −5.8% 2,454,775 $57.35 $141M −151,418 +$6M
HLI - Houlihan Lokey · CL A 0.40% Hold 1,299,577 $107.12 $139M
ROP - Roper Technologies 0.40% Hold 283,609 $484.28 $137M
TOL - Toll Brothers 0.38% Add +0.7% 1,784,965 $73.96 $132M +12,520 −$8M
AMZN - Amazon 0.37% Add +0.5% 1,003,164 $127.12 $128M +5,216 −$3M
IBP - Installed Bldg Prods 0.37% Hold 1,010,775 $124.89 $126M

Showing top 50 of 332 by value

Exits / last held

not current holdings · last reported size, unchanged · gone vs 2023 Q2

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
Liberty Media Delaware 0.25% Exit 0 $75.28 $90M −1,200,000 −$90M
Liberty Media Delaware 0.06% Exit 0 $32.73 $20M −625,000 −$20M
Liberty Media Delaware 0.06% Exit 0 $67.62 $20M −295,711 −$20M
World Wrestling Entmt · CL A 0.05% Exit 0 $108.47 $20M −181,412 −$20M
Tenaris S A 0.04% Exit 0 $29.95 $14M −470,067 −$14M
Abcam 0.03% Exit 0 $24.47 $11M −429,419 −$11M
EA - Electronic Arts 0.03% Exit 0 $129.70 $10M −78,821 −$10M
Velo3d 0.03% Exit 0 $2.16 $9M −4,337,125 −$9M
LBRDA - Liberty Broadband 0.02% Exit 0 $79.73 $6M −75,000 −$6M
BN - Brookfield Renewable · CL A 0.01% Exit 0 $31.52 $5M −159,034 −$5M
IEMG - Ishares 0.01% Exit 0 $49.28 $3M −69,800 −$3M
ABT - Abbott Labs 0.01% Exit 0 $109.02 $3M −24,362 −$3M
APP - Applovin · CL A 0.01% Exit 0 $25.73 $2M −94,047 −$2M
Activision Blizzard 0.01% Exit 0 $84.30 $2M −25,135 −$2M
CERS - Cerus 0.01% Exit 0 $2.46 $2M −825,009 −$2M
Inhibrx Exit 0 $25.97 $779K −30,000 −$779K
Sanara Medtech Exit 0 $40.10 $590K −14,713 −$590K
NFLX - Netflix Exit 0 $440.00 $286K −650 −$286K
PINS - Pinterest · CL A Exit 0 $27.34 $224K −8,192 −$224K
Expensify Exit 0 $8.00 $96K −12,000 −$96K
AEHR - Aehr Test Sys Exit 0 $41.04 $79K −1,925 −$79K

* Reported price is value ÷ shares from the 13F as of period end — not a live market quote. Weight % is each long-equity position ÷ full 13F AUM, so rows may not sum to 100% when the filing includes options or other non-equity (excluded from this table). Share change and $ change are vs 2023 Q2. Click column headers to sort · click New / Hold / Add / Reduce to promote that move type to the top. Exit opens the last-held block below.

Filings history

20 periods · normalized AUM · open a period for holdings

Period Holdings AUM QoQ Form Filed Filing ID
2026 Q2 345 $66.6B +101.2% 13F-HR 8/14/2026 000101791826000067
2026 Q1 326 $33.1B −10.2% 13F-HR 5/15/2026 000101791826000043
2025 Q4 327 $36.9B −2.1% 13F-HR 2/17/2026 000101791826000015
2025 Q3 330 $37.7B +2.2% 13F-HR 11/14/2025 000101791825000059
2025 Q2 306 $36.9B +8.3% 13F-HR 8/14/2025 000101791825000041
2025 Q1 314 $34B −12.0% 13F-HR 5/15/2025 000101791825000031
2024 Q4 316 $38.7B +2.6% 13F-HR 2/14/2025 000101791825000019
2024 Q3 328 $37.7B +8.0% 13F-HR 11/14/2024 000101791824000083
2024 Q2 329 $34.9B −6.9% 13F-HR 8/14/2024 000101791824000013
2024 Q1 332 $37.5B −0.1% 13F-HR 5/15/2024 000101791824000010
2023 Q4 330 $37.5B +9.1% 13F-HR 2/14/2024 000101791824000006
2023 Q3 334 $34.4B −4.7% 13F-HR 11/14/2023 000101791823000018
2023 Q2 343 $36.1B +8.4% 13F-HR 8/14/2023 000101791823000015
2023 Q1 360 $33.3B +11.9% 13F-HR 5/15/2023 000101791823000011
2022 Q4 375 $29.8B −3.8% 13F-HR 2/14/2023 000101791823000006
2022 Q3 370 $31B −0.6% 13F-HR 11/14/2022 000156761922019904
2022 Q2 371 $31.1B −23.6% 13F-HR 8/15/2022 000156761922016144
2022 Q1 388 $40.7B −13.6% 13F-HR 5/13/2022 000156761922010459
2021 Q4 404 $47.1B +6.8% 13F-HR 2/14/2022 000156761922004346
2021 Q3 397 $44.1B 13F-HR 11/12/2021 000156761921019987

About

BAMCO Inc (Baron Capital)

20 processed 13Fs on this site · 2021 Q3–2026 Q2

Entity
BAMCO Inc (Baron Capital)
Notable person
Ron Baron
SEC filing name
BAMCO INC /NY/
Location
New York, NY
All SEC filings
View on sec.gov