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

2022 Q4 2022 Q3 · filed 14 Feb · long equity

TSLA - Tesla 7.25% Add +0.3% 17,527,857 $123.18 $2.2B +59,410 −$2.5B
IT - Gartner 5.53% Reduce −5.3% 4,898,788 $336.14 $1.6B −273,037 +$216M
CSGP - Costar Group 4.96% Reduce −0.8% 19,110,203 $77.28 $1.5B −144,677 +$136M
ACGL - Arch Cap Group 4.51% Reduce −0.4% 21,416,320 $62.78 $1.3B −76,704 +$366M
MTN - Vail Resorts 3.67% Reduce −1.5% 4,590,548 $238.35 $1.1B −67,904 +$90M
FDS - Factset Resh Sys 3.61% Reduce −0.2% 2,679,441 $401.21 $1.1B −4,233 +$1M
MSCI - MSCI Inc · CL A 3.40% Reduce −0.4% 2,173,857 $465.17 $1B −8,354 +$91M
IDXX - Idexx Labs 3.25% Reduce −0.6% 2,373,586 $407.96 $968M −13,809 +$191M
IRDM - Iridium Communications 2.50% Reduce −0.1% 14,511,318 $51.40 $746M −10,616 +$102M
SCHW - Schwab Charles 1.88% Reduce −0.2% 6,714,646 $83.26 $559M −14,692 +$75M
KNSL - Kinsale Cap Group 1.82% Reduce −3.3% 2,077,065 $261.52 $543M −70,484 −$5M
CHH - Choice Hotels Intl 1.73% Reduce −0.4% 4,576,060 $112.64 $515M −20,138 +$12M
MTD - Mettler Toledo 1.66% Reduce −0.8% 341,586 $1,445 $494M −2,630 +$121M
ANSS - Ansys 1.58% Add +3.1% 1,953,122 $241.59 $472M +59,073 +$52M
H - Hyatt Hotels · CL A 1.57% Reduce −1.9% 5,159,866 $90.45 $467M −99,744 +$41M
GLPI - Gaming & Leisure Pptys 1.55% Reduce −0.4% 8,886,021 $52.09 $463M −34,122 +$68M
TECH - Bio Techne 1.54% Add +286.7% 5,519,062 $82.88 $457M +4,091,998 +$52M
GWRE - Guidewire Software 1.24% Reduce −3.3% 5,879,510 $62.56 $368M −203,778 −$7M
MAR - Marriott 1.21% Reduce −1.8% 2,683,891 $134.59 $361M −48,197 +$28M
RRR - Red Rock Resorts · CL A 1.10% Reduce −2.3% 8,165,173 $40.01 $327M −193,848 +$40M
TSM - Taiwan Semiconductor Mfg 0.96% Add +5.4% 3,847,405 $74.49 $287M +197,504 +$36M
PRI - Primerica 0.93% Reduce −1.3% 1,950,643 $141.82 $277M −25,268 +$33M
WST - West Pharmaceutical Svsc 0.85% Reduce −7.2% 1,075,453 $235.35 $253M −83,751 −$32M
MORN - Morningstar 0.82% Reduce −1.5% 1,133,519 $216.59 $246M −16,896 +$1M
PENN - Penn Entertainment 0.81% Reduce −5.6% 8,090,957 $29.70 $240M −479,399 +$5M
VRSK - Verisk Analytics · CL A 0.76% Add +3.6% 1,284,392 $176.42 $227M +44,706 +$15M
DAY - Ceridian Hcm 0.75% Reduce −0.3% 3,487,236 $64.15 $224M −11,798 +$28M
SBAC - Sba Communications 0.71% Add +7.2% 751,296 $280.31 $211M +50,356 +$11M
SITE - Siteone Landscape Supply 0.67% Reduce −1.5% 1,701,036 $117.32 $200M −26,491 +$20M
CNS - Cohen & Steers 0.66% Reduce −2.0% 3,058,502 $64.56 $197M −62,166 +$2M
FND - Floor & Decor · CL A 0.64% Add +8.6% 2,752,790 $69.63 $192M +218,876 +$14M
ARE — 0.63% Add +3.6% 1,284,171 $145.67 $187M +44,839 +$13M
Endava 0.62% Reduce −2.5% 2,421,140 $76.50 $185M −61,368 −$15M
ICLR - ICON 0.61% Add +1.4% 935,851 $194.25 $182M +13,314 +$12M
BABA - Alibaba Group 0.60% Reduce −2.0% 2,016,761 $88.09 $178M −40,379 +$13M
EFOR - ASGN 0.56% Reduce −2.1% 2,043,781 $81.48 $167M −43,578 −$22M
DXCM - Dexcom 0.52% Reduce −7.8% 1,355,587 $113.24 $154M −115,159 +$35M
TREX — 0.50% Add +2.0% 3,512,925 $42.33 $149M +67,219 −$3M
BFAM — 0.48% Reduce −2.8% 2,252,672 $63.10 $142M −65,625 +$8M
ARGX - Argenx Se 0.46% Reduce −12.7% 364,286 $378.83 $138M −52,915 −$9M
VRSN - Verisign 0.45% Reduce −1.0% 653,143 $205.44 $134M −6,925 +$20M
ROP - Roper Industries 0.42% Reduce −0.8% 286,157 $432.09 $124M −2,376 +$20M
VEEV - Veeva Sys · CL A 0.41% Reduce −5.8% 749,910 $161.38 $121M −46,169 −$10M
EQIX - Equinix 0.40% Add +7.6% 183,631 $655.03 $120M +12,958 +$23M
MSFT - Microsoft 0.40% Reduce −4.9% 498,459 $239.82 $120M −25,909 −$3M
HLI - Houlihan Lokey · CL A 0.38% Add 0.0% 1,301,173 $87.16 $113M +278 +$15M
ILMN - Illumina 0.38% Reduce −2.9% 559,467 $202.20 $113M −16,980 +$3M
Aspen Technology 0.38% Reduce −6.2% 544,939 $205.40 $112M −36,033 −$26M
Holding 0.37% Reduce −3.8% 1,773,014 $62.53 $111M −70,100 −$19M
FIGS - FIGS Inc · CL A 0.37% Add +3.4% 16,243,988 $6.73 $109M +526,792 −$20M

Showing top 50 of 361 by value

Exits / last held

not current holdings · last reported size, unchanged · gone vs 2022 Q3

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
BN - Brookfield Asset Mgmt · CL A 0.36% Exit 0 $40.89 $112M −2,732,620 −$112M
Ping Identity 0.08% Exit 0 $28.07 $24M −837,781 −$24M
TEAM - Atlassian · CL A 0.06% Exit 0 $210.58 $20M −94,266 −$20M
Netstreit 0.06% Exit 0 $17.81 $19M −1,054,626 −$19M
DKNG - Draftkings · CL A 0.04% Exit 0 $15.14 $13M −875,000 −$13M
Rxr Acquisition 0.04% Exit 0 $9.83 $13M −1,317,090 −$13M
AZEK 0.03% Exit 0 $16.62 $8M −500,000 −$8M
Duke Realty 0.02% Exit 0 $48.20 $6M −124,277 −$6M
ENTG - Entegris 0.02% Exit 0 $83.03 $5M −56,295 −$5M
BN - Brookfield Infrast Partners 0.01% Exit 0 $35.90 $4M −117,381 −$4M
JAMF 0.01% Exit 0 $22.16 $4M −175,000 −$4M
Tishman Speyer Innovation 0.01% Exit 0 $9.85 $4M −381,620 −$4M
BMY - Bristol-Myers Squibb 0.01% Exit 0 $71.10 $3M −40,000 −$3M
ALGN - Align Technology 0.01% Exit 0 $207.07 $3M −13,319 −$3M
TWLO - Twilio · CL A 0.01% Exit 0 $69.14 $2M −33,684 −$2M
LYV - Live Nation 0.01% Exit 0 $76.05 $2M −27,456 −$2M
Avalara 0.01% Exit 0 $91.78 $2M −18,719 −$2M
Sientra 0.01% Exit 0 $0.6399 $2M −2,578,364 −$2M
Ion Acquisition 3 · CL A Exit 0 $9.87 $1M −151,660 −$1M
SHO - Sunstone Hotel Invs Exit 0 $9.42 $1M −150,310 −$1M
TCOM - Tripadvisor Exit 0 $22.09 $1M −62,026 −$1M
INTC - Intellia Therapeutics Exit 0 $55.99 $907K −16,200 −$907K
IWM - Ishares Tr Exit 0 $165.13 $161K −975 −$161K
BN - Brookfield Asset Mgmt Reins · CL A Exit 0 $66.67 $1K −15 −$1K
SFIX - Stitch Fix · CL A Exit 0 −65 $—

* 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 2022 Q3. 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