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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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  • Activity12k
  • 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 2024Q3 - net new, added, trimmed, exited.
New positions18 names
  • VNOVORNADO RLTY TR
    +1,912,359
    $75.3M
  • CZRCAESARS ENTERTAINMENT INC NE
    +1,482,755
    $61.9M
  • BLDRBUILDERS FIRSTSOURCE INC
    +187,444
    $36.3M
  • JDJD.COM INC
    +808,508
    $32.3M
  • DUOLDUOLINGO INC
    +91,512
    $25.8M
  • LINELINEAGE INC
    +261,228
    $20.5M
  • GCMGGCM GROSVENOR INC
    +1,750,000
    $19.8M
  • TWFGTWFG INC
    +728,748
    $19.8M
  • IRMIRON MTN INC NEW
    +159,114
    $18.9M
  • ABNBAIRBNB INC
    +134,000
    $17.0M
  • ADCAGREE RLTY CORP
    +95,040
    $7.2M
  • BRXBRIXMOR PPTY GROUP INC
    +255,165
    $7.1M
  • + 6 more…
Added to90 names
  • AVGOBROADCOM INC
    +465,030
    $80.2M
  • GDSGDS HLDGS LTD
    +3,397,592
    $69.3M
  • EQIXEQUINIX INC
    +50,913
    $45.2M
  • BNBROOKFIELD CORP
    +750,726
    $39.9M
  • LOWLOWES COS INC
    +121,058
    $32.8M
  • MACMACERICH CO
    +1,494,145
    $27.3M
  • IBTAIBOTTA INC
    +401,431
    $24.7M
  • MTNVAIL RESORTS INC
    +136,328
    $23.8M
  • FIGSFIGS INC
    +3,342,755
    $22.9M
  • LPXLOUISIANA PAC CORP
    +204,828
    $22.0M
  • WELLWELLTOWER INC
    +164,685
    $21.1M
  • CBRECBRE GROUP INC
    +165,838
    $20.6M
  • + 78 more…
Trimmed157 names
  • TSLATESLA INC
    −587,907
    $153.8M
  • WSTWEST PHARMACEUTICAL SVSC INC
    −279,326
    $83.8M
  • ITGARTNER INC
    −161,535
    $81.9M
  • AMTAMERICAN TOWER CORP NEW
    −349,770
    $81.3M
  • FDSFACTSET RESH SYS INC
    −174,443
    $80.2M
  • PDDPINDUODUO INC
    −520,740
    $70.2M
  • WYNNWYNN RESORTS LTD
    −633,296
    $60.7M
  • IDXXIDEXX LABS INC
    −112,079
    $56.6M
  • EQREQUITY RESIDENTIAL
    −728,559
    $54.2M
  • FNDFLOOR & DECOR HLDGS INC
    −425,729
    $52.9M
  • NVDANVIDIA CORPORATION
    −358,891
    $43.6M
  • IBPINSTALLED BLDG PRODS INC
    −168,757
    $41.6M
  • + 145 more…
Exited19 names
  • 82710MSILK RD MED INC
    −1,279,115
    $34.6M
  • BIDUBAIDU INC
    −396,819
    $34.3M
  • SPTSPROUT SOCIAL INC
    −750,000
    $26.8M
  • EWCZEUROPEAN WAX CTR INC
    −2,000,000
    $19.9M
  • DHDEFINITIVE HEALTHCARE CORP
    −3,491,471
    $19.1M
  • MRVLMARVELL TECHNOLOGY INC
    −191,401
    $13.4M
  • MCKMCKESSON CORP
    −10,800
    $6.3M
  • TXG10X GENOMICS INC
    −314,862
    $6.1M
  • IRTCIRHYTHM TECHNOLOGIES INC
    −46,500
    $5.0M
  • SUISUN CMNTYS INC
    −33,944
    $4.1M
  • HLNEHAMILTON LANE INC
    −27,279
    $3.4M
  • RVNCEURREVANCE THERAPEUTICS INC
    −1,023,663
    $2.6M
  • + 7 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