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 Q1 2021 Q4 · filed 13 May · long equity

TSLA - Tesla Motors 15.33% Add +0.1% 5,797,583 $1,078 $6.2B +3,980 +$125M
IT - Gartner 3.85% Reduce −1.2% 5,274,931 $297.46 $1.6B −62,365 −$215M
IDXX - Idexx Labs 3.33% Reduce −1.9% 2,480,174 $547.06 $1.4B −47,337 −$307M
CSGP - Costar Group 3.08% Add +1.9% 18,849,173 $66.61 $1.3B +350,382 −$206M
MTN - Vail Resorts 2.95% Add +5.3% 4,625,849 $260.27 $1.2B +232,569 −$237M
FDS - Factset Resh Sys 2.85% Add +0.6% 2,674,376 $434.15 $1.2B +16,896 −$130M
MSCI - MSCI Inc · CL A 2.73% Add +3.2% 2,210,016 $502.88 $1.1B +69,428 −$200M
ACGL - Arch Cap Group 2.56% Reduce −0.1% 21,506,340 $48.42 $1B −26,112 +$84M
CHH - Choice Hotels Intl 1.61% Reduce −0.1% 4,624,466 $141.76 $656M −6,386 −$67M
TECH - Bio Techne 1.56% Reduce −0.9% 1,469,118 $433.04 $636M −13,835 −$131M
ANSS - Ansys 1.54% Reduce −2.9% 1,974,782 $317.65 $627M −59,023 −$189M
IRDM - Iridium Communications 1.44% Add +8.4% 14,522,520 $40.32 $586M +1,120,781 +$32M
GWRE - Guidewire Software 1.35% Reduce −1.4% 5,814,960 $94.62 $550M −83,011 −$119M
SCHW - Schwab Charles 1.34% Reduce −0.3% 6,497,758 $84.31 $548M −22,502 −$528K
H - Hyatt Hotels · CL A 1.28% Reduce −0.2% 5,449,957 $95.45 $520M −10,743 −$3M
MTD - Mettler Toledo 1.23% Reduce −2.3% 366,284 $1,373 $503M −8,810 −$134M
KNSL - Kinsale Cap Group 1.18% Add +0.1% 2,114,205 $228.02 $482M +3,099 −$20M
WST - West Pharmaceutical Svsc 1.18% Reduce −0.5% 1,171,667 $410.71 $481M −5,854 −$71M
TSM - Taiwan Semiconductor Mfg 1.16% Reduce −2.0% 4,528,804 $104.26 $472M −94,421 −$84M
MAR - Marriott 1.12% Reduce −1.9% 2,886,857 $157.70 $455M −54,790 −$42M
PENN - Penn Natl Gaming 1.11% Reduce −0.5% 10,616,332 $42.42 $450M −49,203 −$103M
GLPI - Gaming & Leisure Pptys 1.03% Add +2.5% 8,968,592 $46.93 $421M +218,379 −$5M
RRR - Red Rock Resorts · CL A 0.94% Add +3.8% 7,865,999 $48.56 $382M +290,269 −$35M
BFAM — 0.82% Reduce −0.1% 2,509,475 $132.69 $333M −1,869 +$17M
MORN - Morningstar 0.78% Reduce −3.6% 1,165,415 $273.17 $318M −43,505 −$95M
Endava 0.75% Reduce −2.1% 2,307,653 $133.03 $307M −49,038 −$89M
PRI - Primerica 0.69% Reduce −1.2% 2,060,057 $136.82 $282M −25,719 −$38M
SPOT - Spotify Technology S A 0.66% Add +59.0% 1,774,545 $151.02 $268M +658,687 +$7M
CNS - Cohen & Steers 0.65% Add +5.8% 3,085,969 $85.89 $265M +169,671 −$5M
AMZN - Amazon 0.64% Reduce −11.3% 80,056 $3,260 $261M −10,176 −$40M
GTM - Zoominfo Technologies · CL A 0.64% Add +1.4% 4,362,526 $59.74 $261M +61,143 −$16M
RIVN - Rivian Automotive 0.64% Reduce −7.9% 5,375,789 $48.29 $260M −464,209 −$330M
ARE — 0.62% Reduce −3.9% 1,253,641 $201.25 $252M −50,328 −$38M
VRSK - Verisk Analytics · CL A 0.61% Reduce −1.4% 1,158,380 $214.63 $249M −16,370 −$20M
BABA - Alibaba Group 0.61% Add +6.4% 2,268,156 $108.80 $247M +137,202 −$6M
SHOP - Shopify · CL A 0.59% Add +75.7% 354,147 $675.96 $239M +152,554 −$38M
SSNC - SS&C Technologies 0.57% Reduce −8.0% 3,086,921 $75.02 $232M −268,450 −$43M
GOOG - Alphabet · CL C 0.56% Reduce −28.8% 82,312 $2,793 $230M −33,275 −$105M
TREX — 0.53% Add +0.3% 3,317,449 $65.33 $217M +9,159 −$230M
BYD - Boyd Gaming 0.53% Add +8.8% 3,261,996 $65.78 $215M +265,156 +$18M
DAY - Ceridian Hcm 0.52% Reduce −0.3% 3,103,832 $68.36 $212M −10,715 −$113M
SBAC - Sba Communications 0.51% Reduce −16.4% 600,665 $344.10 $207M −118,083 −$73M
Aspen Technology 0.51% Reduce −0.2% 1,245,459 $165.37 $206M −2,493 +$16M
DEI - Douglas Emmett 0.49% Add 0.0% 5,928,112 $33.42 $198M +600 −$454K
DXCM - Dexcom 0.46% Reduce −2.9% 369,969 $511.60 $189M −10,919 −$15M
ICLR - ICON 0.46% Reduce −2.7% 771,031 $243.22 $188M −21,500 −$58M
EFOR - ASGN 0.46% Hold 1,604,458 $116.71 $187M
SITE - Siteone Landscape Supply 0.42% Reduce 0.0% 1,057,533 $161.69 $171M −478 −$85M
VEEV - Veeva Sys · CL A 0.42% Reduce −2.4% 801,065 $212.46 $170M −19,749 −$40M
TRU - Transunion 0.41% Reduce −1.8% 1,614,406 $103.34 $167M −29,802 −$28M

Showing top 50 of 375 by value

Exits / last held

not current holdings · last reported size, unchanged · gone vs 2021 Q4

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
NTRA - Natera 0.14% Exit 0 $93.39 $65M −693,462 −$65M
Kanzhun 0.09% Exit 0 $34.88 $43M −1,221,418 −$43M
New Frontier Health 0.06% Exit 0 $11.46 $29M −2,518,296 −$29M
BHVN - Biohaven 0.06% Exit 0 $137.81 $27M −197,980 −$27M
Farfetch · CL A 0.05% Exit 0 $33.43 $23M −702,664 −$23M
Mgm Growth Pptys · CL A 0.05% Exit 0 $40.85 $22M −526,572 −$22M
Opendoor Technologies 0.04% Exit 0 $14.61 $20M −1,364,088 −$20M
Mirati Therapeutics 0.04% Exit 0 $146.69 $19M −126,322 −$19M
FOUR - Shift4 Pmts · CL A 0.03% Exit 0 $57.93 $14M −250,000 −$14M
Digitalbridge Group · CL A 0.03% Exit 0 $8.33 $12M −1,441,050 −$12M
Hashicorp · CL A 0.02% Exit 0 $91.04 $11M −125,000 −$11M
Jbg Smith Pptys 0.02% Exit 0 $28.71 $11M −374,620 −$11M
Splunk 0.02% Exit 0 $115.72 $9M −81,463 −$9M
Myt Netherlands Parent B V 0.02% Exit 0 $21.21 $9M −430,665 −$9M
ESCO Technologies 0.02% Exit 0 $89.99 $8M −86,600 −$8M
RXRX — 0.01% Exit 0 $17.13 $7M −408,563 −$7M
DV - Doubleverify 0.01% Exit 0 $33.28 $6M −184,516 −$6M
Viant Technology 0.01% Exit 0 $9.71 $5M −542,985 −$5M
Ihs Markit 0.01% Exit 0 $132.93 $4M −33,649 −$4M
AXGN - Axogen 0.01% Exit 0 $9.37 $4M −435,527 −$4M
TOST - Toast 0.01% Exit 0 $34.71 $4M −114,485 −$4M
ACHR - Archer Aviation · CL A 0.01% Exit 0 $6.04 $4M −657,000 −$4M
OLN - Olink Ab 0.01% Exit 0 $18.20 $4M −210,445 −$4M
ASND - Ascendis Pharma A/S 0.01% Exit 0 $134.54 $3M −20,500 −$3M
NIU Technologies 0.01% Exit 0 $16.11 $3M −161,592 −$3M
IQV - IQVIA Exit 0 $282.19 $2M −6,081 −$2M
Ishares Tr Exit 0 $293.08 $1M −4,521 −$1M
ARVN - Arvinas Exit 0 $82.11 $1M −16,100 −$1M
Laird Superfood Exit 0 $13.04 $1M −100,000 −$1M
PATH - Uipath · CL A Exit 0 $43.13 $1M −30,000 −$1M
BEAM - Beam Therapeutics Exit 0 $79.66 $1M −15,717 −$1M
INTC - Intellia Therapeutics Exit 0 $118.27 $1M −10,400 −$1M
ZNTL - Zentalis Pharmaceuticals Exit 0 $84.08 $1M −12,000 −$1M
STZ - Constellation Brands Exit 0 $250.85 $962K −3,835 −$962K
Semler Scientific Exit 0 $91.68 $960K −10,471 −$960K
PTGX - Protagonist Therapeutics Exit 0 $34.19 $889K −26,000 −$889K
IAC - Iac Interactivecorp Exit 0 $130.69 $809K −6,190 −$809K
Goodrx · CL A Exit 0 $32.68 $670K −20,500 −$670K
MRNA - Moderna Exit 0 $253.95 $643K −2,532 −$643K
VICI - Vici Pptys Exit 0 $30.15 $374K −12,405 −$374K
Riskified · CL A Exit 0 $7.86 $220K −28,000 −$220K
Z - Zillow Group · CL A Exit 0 $62.08 $64K −1,031 −$64K
PINS - Pinterest · CL A Exit 0 $36.09 $45K −1,247 −$45K
ZM - Zoom Video · CL A Exit 0 $181.82 $26K −143 −$26K

* 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 2021 Q4. 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