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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  1. Home/
  2. Super Investors/
  3. Ron Baron (Baron Capital / BAMCO)
  • Overview
  • Portfolio327
  • Performance40Q
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  • News
Asset Manager · CIK 0001017918

Ron Baron

Baron Capital / BAMCO
Share
  • Large Fund

Ron Baron runs Baron Capital / BAMCO, an asset manager overseeing $36.91B in disclosed equity holdings (SEC CIK 0001017918). The latest portfolio (2025Q4) discloses 327 positions across 9 sectors, with the largest positions in TSLA, ARCH CAP GROUP LTD and MSCI. On a mark-to-market basis the tracked portfolio has returned 13.0% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Ron's filingsView holdings↓
Portfolio
$36.91B
Positions
327
Quarter
2025Q4
Filings tracked
40
1Y+13.0%Since filing+110.9%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1
Capital flow per quarter
BuysSellsNet
+$3.88B+$1.94B$0-$1.94B-$3.88B'22Q1'22Q2'22Q3'22Q4'23Q1'23Q2'23Q3'23Q4'24Q1'24Q2'24Q3'24Q4'25Q1'25Q2'25Q3'25Q4
Latest · 2025Q4
-$342M
Lifetime buys
$25.46B
Lifetime sells
$29.55B

Quarter activity

What changed in 2024Q4 - net new, added, trimmed, exited.
New positions18 names
  • EXPEEXPEDIA GROUP INC
    +430,454
    $80.2M
  • TTANSERVICETITAN INC
    +684,222
    $70.4M
  • KRCKILROY RLTY CORP
    +1,452,331
    $58.7M
  • LYVLIVE NATION ENTERTAINMENT IN
    +195,000
    $25.3M
  • NPOENPRO INDS INC
    +140,378
    $24.2M
  • M6191JJFROG LTD
    +725,000
    $21.3M
  • ANETARISTA NETWORKS INC
    +168,805
    $18.7M
  • SGMLSIGMA LITHIUM CORPORATION
    +1,206,714
    $13.5M
  • AHRAMERICAN HEALTHCARE REIT INC
    +188,959
    $5.4M
  • PTLOPORTILLOS INC
    +436,710
    $4.1M
  • EWTXEDGEWISE THERAPEUTICS INC
    +60,000
    $1.6M
  • WYWEYERHAEUSER CO MTN BE
    +54,548
    $1.5M
  • + 6 more…
Added to93 names
  • MACMACERICH CO
    +2,980,051
    $59.4M
  • EQIXEQUINIX INC
    +49,454
    $46.6M
  • IDXXIDEXX LABS INC
    +82,264
    $34.0M
  • RRRRED ROCK RESORTS INC
    +732,917
    $33.9M
  • CSGPCOSTAR GROUP INC
    +418,128
    $29.9M
  • IRTINDEPENDENCE RLTY TR INC
    +1,464,400
    $29.1M
  • EQREQUITY RESIDENTIAL
    +379,565
    $27.2M
  • JLLJONES LANG LASALLE INC
    +105,656
    $26.7M
  • DNUTKRISPY KREME INC
    +2,588,398
    $25.7M
  • BNBROOKFIELD CORP
    +442,219
    $25.4M
  • VNOVORNADO RLTY TR
    +531,353
    $22.3M
  • WELLWELLTOWER INC
    +176,736
    $22.3M
  • + 81 more…
Trimmed151 names
  • TSLATESLA INC
    −349,720
    $141.2M
  • VRTVERTIV HOLDINGS CO
    −800,000
    $90.9M
  • ALTREURALTAIR ENGR INC
    −720,342
    $78.6M
  • AKXANSYS INC
    −196,038
    $66.1M
  • AXONAXON ENTERPRISE INC
    −99,491
    $59.1M
  • FDSFACTSET RESH SYS INC
    −122,416
    $58.8M
  • AZPN1USDASPEN TECHNOLOGY INC
    −214,797
    $53.6M
  • TOLTOLL BROTHERS INC
    −423,535
    $53.3M
  • ITGARTNER INC
    −106,181
    $51.4M
  • LENLENNAR CORP
    −357,720
    $48.8M
  • G4705AICON PLC
    −219,889
    $46.1M
  • DHID R HORTON INC
    −282,494
    $39.5M
  • + 139 more…
Exited30 names
  • REXRREXFORD INDL RLTY INC
    −1,526,016
    $76.8M
  • CZRCAESARS ENTERTAINMENT INC NE
    −1,482,755
    $61.9M
  • PLDPROLOGIS INC.
    −381,980
    $48.2M
  • AMTAMERICAN TOWER CORP NEW
    −192,717
    $44.8M
  • INVHINVITATION HOMES INC
    −905,787
    $31.9M
  • FOXFFOX FACTORY HLDG CORP
    −500,000
    $20.8M
  • LINELINEAGE INC
    −261,228
    $20.5M
  • YUMCYUM CHINA HLDGS INC
    −392,632
    $17.7M
  • AMDADVANCED MICRO DEVICES INC
    −105,364
    $17.3M
  • COLDAMERICOLD RLTY TR
    −500,000
    $14.1M
  • FBINFORTUNE BRANDS HOME & SEC IN
    −106,410
    $9.5M
  • LEGNLEGEND BIOTECH CORP
    −168,158
    $8.2M
  • + 18 more…

Recent transactions

Last 20 moves
ADD
Ron Baron (Baron Capital / BAMCO) added to PEN
PENUMBRA INC
+426
~$310.91 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited ARE
ALEXANDRIA REAL ESTATE EQ IN
−20,104
~$83.34 · 2025Q4
2026-02-17
ADD
Ron Baron (Baron Capital / BAMCO) added to AXON
AXON ENTERPRISE INC
+49,199
~$567.93 · 2025Q4
2026-02-17
ADD
Ron Baron (Baron Capital / BAMCO) added to CHH
CHOICE HOTELS INTL INC
+2,026,679
~$95.26 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited CDTX
CIDARA THERAPEUTICS INC
−17,500
~$95.76 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited CYH
COMMUNITY HEALTH SYS INC NEW
−100
~$3.21 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited DUOL
DUOLINGO INC
−243,708
~$321.84 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited FRPT
FRESHPET INC
−38,628
~$55.11 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited IBN
ICICI BANK LIMITED
−11,708
~$30.23 · 2025Q4
2026-02-17
ADD
Ron Baron (Baron Capital / BAMCO) added to M6191J100
JFROG LTD
+244,450
~$62.46 · 2025Q4
2026-02-17
TRIM
Ron Baron (Baron Capital / BAMCO) trimmed KTOS
KRATOS DEFENSE & SEC SOLUTIO
−723,116
~$75.91 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited LLYVK*
LIBERTY MEDIA CORP DEL
−1,458,910
~$96.97 · 2025Q4
2026-02-17
ADD
Ron Baron (Baron Capital / BAMCO) added to MIR
MIRION TECHNOLOGIES INC
+150,000
~$23.42 · 2025Q4
2026-02-17
TRIM
Ron Baron (Baron Capital / BAMCO) trimmed S
SENTINELONE INC
−332,529
~$15.00 · 2025Q4
2026-02-17
TRIM
Ron Baron (Baron Capital / BAMCO) trimmed TSLA
TESLA INC
−20,139
~$449.72 · 2025Q4
2026-02-17
TRIM
Ron Baron (Baron Capital / BAMCO) trimmed TW
TRADEWEB MKTS INC
−10,773
~$107.54 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited UDR
UDR INC
−88,575
~$37.26 · 2025Q4
2026-02-17
TRIM
Ron Baron (Baron Capital / BAMCO) trimmed WYNN
WYNN RESORTS LTD
−118,268
~$120.33 · 2025Q4
2026-02-17
NEW
Ron Baron (Baron Capital / BAMCO) opened a new position in SMMD
ISHARES TR
+51,896
~$74.94 · 2025Q4
2026-02-17
SOLD
Ron Baron (Baron Capital / BAMCO) exited JBI
JANUS INTERNATIONAL GROUP IN
−2,750,000
~$9.87 · 2025Q4
2026-02-17