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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

Ron Baron

Baron Capital / BAMCO
Share
  • Asset Manager · CIK 0001017918
  • 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 106.7% since 2016Q1. 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
Since filing+106.7%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1
Capital flow per quarter
BuysSellsNet
+$3.89B+$1.95B$0-$1.95B-$3.89B'20Q3'20Q4'21Q1'21Q2'21Q3'21Q4'22Q1'22Q2'22Q3'22Q4'23Q1'23Q2'23Q3'23Q4'24Q1'24Q2
Latest · 2024Q2
-$612M
Lifetime buys
$32.50B
Lifetime sells
$26.60B

Quarter activity

What changed in 2024Q2 - net new, added, trimmed, exited.
New positions22 names
  • IBTAIBOTTA INC
    +517,112
    $38.9M
  • MLMMARTIN MARIETTA MATLS INC
    +69,085
    $37.4M
  • TEMTEMPUS AI INC
    +784,397
    $27.5M
  • LPXLOUISIANA PAC CORP
    +311,644
    $25.7M
  • ITGRINTEGER HLDGS CORP
    +216,677
    $25.1M
  • LOARLOAR HOLDINGS INC
    +300,000
    $16.0M
  • EPACENERPAC TOOL GROUP CORP
    +410,369
    $15.7M
  • IOTSAMSARA INC
    +349,294
    $11.8M
  • DOCHEALTHPEAK PROPERTIES INC
    +339,151
    $6.6M
  • IRTINDEPENDENCE RLTY TR INC
    +323,622
    $6.1M
  • CDNSCADENCE DESIGN SYSTEM INC
    +17,180
    $5.3M
  • VTRVENTAS INC
    +91,930
    $4.7M
  • + 10 more…
Added to103 names
  • NVDANVIDIA CORPORATION
    +2,906,305
    $359.0M
  • AAPLAPPLE INC
    +298,283
    $62.8M
  • APHAMPHENOL CORP NEW
    +928,751
    $62.6M
  • AVBAVALONBAY CMNTYS INC
    +296,324
    $61.3M
  • EQREQUITY RESIDENTIAL
    +833,839
    $57.8M
  • MTNVAIL RESORTS INC
    +253,521
    $45.7M
  • AMTAMERICAN TOWER CORP NEW
    +216,655
    $42.1M
  • VMCVULCAN MATLS CO
    +138,229
    $34.4M
  • PCORPROCORE TECHNOLOGIES INC
    +406,429
    $27.0M
  • EXKEXACT SCIENCES CORP
    +618,000
    $26.1M
  • SHOPSHOPIFY INC
    +393,946
    $26.0M
  • AVGOBROADCOM INC
    +16,073
    $25.8M
  • + 91 more…
Trimmed135 names
  • TSLATESLA INC
    −1,701,359
    $336.7M
  • BYDBOYD GAMING CORP
    −1,791,381
    $98.7M
  • VRTVERTIV HOLDINGS CO
    −1,050,000
    $90.9M
  • TOLTOLL BROTHERS INC
    −715,926
    $82.5M
  • PLDPROLOGIS INC.
    −404,359
    $45.4M
  • WSTWEST PHARMACEUTICAL SVSC INC
    −128,777
    $42.4M
  • KNSLKINSALE CAP GROUP INC
    −104,798
    $40.4M
  • MGMMGM RESORTS INTERNATIONAL
    −854,718
    $38.0M
  • FDSFACTSET RESH SYS INC
    −84,814
    $34.6M
  • IDXXIDEXX LABS INC
    −69,614
    $33.9M
  • VRSNVERISIGN INC
    −185,014
    $32.9M
  • FICOFAIR ISAAC CORP
    −22,035
    $32.8M
  • + 123 more…
Exited25 names
  • AXNX*AXONICS INC
    −686,565
    $47.4M
  • ALABASTERA LABS INC
    −500,000
    $37.1M
  • CZRCAESARS ENTERTAINMENT INC NE
    −813,480
    $35.6M
  • SMARGBPSMARTSHEET INC
    −765,464
    $29.5M
  • EGPEASTGROUP PPTYS INC
    −141,633
    $25.5M
  • SWAVUSDSHOCKWAVE MED INC
    −74,373
    $24.2M
  • ALGMALLEGRO MICROSYSTEMS INC
    −668,811
    $18.0M
  • TTWOTAKE-TWO INTERACTIVE SOFTWAR
    −86,767
    $12.9M
  • TRNOTERRENO RLTY CORP
    −153,457
    $10.2M
  • NVTSNAVITAS SEMICONDUCTOR CORP
    −1,388,895
    $6.6M
  • PENNPENN NATL GAMING INC
    −353,399
    $6.4M
  • LULUFAX HOLDING LTD
    −1,453,122
    $6.1M
  • + 13 more…

Recent transactions

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