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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
  • Options
  • 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 2023Q1 - net new, added, trimmed, exited.
New positions16 names
  • WYNNWYNN RESORTS LTD
    +419,413
    $46.9M
  • CZRCAESARS ENTERTAINMENT INC NE
    +833,301
    $40.7M
  • PWRQUANTA SVCS INC
    +216,686
    $36.1M
  • SITMSITIME CORP
    +204,394
    $29.1M
  • BZKANZHUN LIMITED
    +1,098,453
    $20.9M
  • IBKRINTERACTIVE BROKERS GROUP IN
    +207,000
    $17.1M
  • 11284VBROOKFIELD RENEWABLE CORP
    +116,634
    $4.1M
  • FRFIRST INDL RLTY TR INC
    +66,192
    $3.5M
  • MUFGMITSUBISHI UFJ FINL GROUP IN
    +544,010
    $3.5M
  • EXKEXACT SCIENCES CORP
    +35,000
    $2.4M
  • STEPSTEPSTONE GROUP INC
    +79,700
    $1.9M
  • SHOSUNSTONE HOTEL INVS INC NEW
    +105,049
    $1.0M
  • + 4 more…
Added to133 names
  • SCHWSCHWAB CHARLES CORP
    +915,388
    $47.9M
  • TSMTAIWAN SEMICONDUCTOR MFG LTD
    +433,498
    $40.3M
  • RGENREPLIGEN CORP
    +212,374
    $35.8M
  • DEIDOUGLAS EMMETT INC
    +2,885,603
    $35.6M
  • CPNGCOUPANG INC
    +2,087,031
    $33.4M
  • MGMMGM RESORTS INTERNATIONAL
    +746,504
    $33.2M
  • WELLWELLTOWER INC
    +454,453
    $32.6M
  • JBIJANUS INTERNATIONAL GROUP IN
    +3,000,000
    $29.6M
  • FIGSFIGS INC
    +4,622,779
    $28.6M
  • ETWOGBPE2OPEN PARENT HOLDINGS INC
    +4,886,792
    $28.4M
  • LVSLAS VEGAS SANDS CORP
    +491,603
    $28.2M
  • EGPEASTGROUP PPTYS INC
    +169,379
    $28.0M
  • + 121 more…
Trimmed141 names
  • BIDUBAIDU INC
    −414,157
    $62.5M
  • IBPINSTALLED BLDG PRODS INC
    −449,262
    $51.2M
  • SBACSBA COMMUNICATIONS CORP NEW
    −190,805
    $49.8M
  • ARGXARGENX SE
    −115,331
    $43.0M
  • SHOPSHOPIFY INC
    −824,371
    $39.5M
  • TREXTREX CO INC
    −790,063
    $38.5M
  • GOOGALPHABET INC
    −334,360
    $34.8M
  • ITGARTNER INC
    −102,330
    $33.3M
  • TFXTELEFLEX INCORPORATED
    −121,896
    $30.9M
  • SITESITEONE LANDSCAPE SUPPLY INC
    −213,931
    $29.3M
  • FISFIDELITY NATL INFORMATION SV
    −477,935
    $26.0M
  • AXONAXON ENTERPRISE INC
    −105,500
    $23.7M
  • + 129 more…
Exited31 names
  • PGNYPROGYNY INC
    −1,163,928
    $36.3M
  • 33616CFIRST REP BK SAN FRANCISCO C
    −244,477
    $29.8M
  • 29788TE2OPEN PARENT HOLDINGS INC
    −4,886,792
    $28.7M
  • 47103NJANUS INTERNATIONAL GROUP IN
    −3,000,000
    $28.6M
  • CDNACAREDX INC
    −2,058,339
    $23.5M
  • INGNINOGEN INC
    −976,644
    $19.2M
  • SHWSHERWIN WILLIAMS CO
    −79,157
    $18.8M
  • 67079ANUVEI CORPORATION
    −705,000
    $17.9M
  • G29018DLOCAL LTD
    −958,234
    $14.9M
  • BVBRIGHTVIEW HLDGS INC
    −2,096,786
    $14.4M
  • WOOFPETCO HEALTH & WELLNESS CO I
    −1,308,754
    $12.4M
  • SPGSIMON PPTY GROUP INC NEW
    −62,490
    $7.3M
  • + 19 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