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Berkley W R Corp

13F filer · CIK 0000011544
Reported Aug 24, 2026
Net buyer this quarter
13F portfolio value$2.18BU.S. long equity reported on 13F
Positions31774 new · 76 closed
Net flow last quarter+$178MBuys minus sells
Top 10 positions weight39.4%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 24, 2026317 positions
EPDEnterprise Products Partners L.P.$251M11.53%0.32%Not reportedQ3 2021
ETEnergy Transfer LP$158M7.25%0.24%Not reportedQ3 2021
KMIKinder Morgan, Inc.$90.7M4.17%0.13%Not reportedQ4 2020
PAAPlains All American Pipeline LP$70.9M3.26%0.45%+18.6%Q3 2025
ONOn Semiconductor Corp$69.1M3.18%0.19%Not reportedQ2 2022
MSFTMicrosoft Corp$55.7M2.56%0.00%Not reportedQ3 2023
WESWestern Midstream Partners, LP$55.4M2.55%0.32%Not reportedQ1 2021
PGRProgressive Corp$45.3M2.08%0.04%Not reportedQ4 2025
ANSCAgriculture & Natural Solutions Acquisition Corporation$37.1M1.70%Not reported+24.3%Q3 2024
NVDANvidia Corp$25M1.15%0.00%Not reportedQ2 2024
DRDBRoman DBDR Acquisition Corp. II$24M1.10%Not reported+26.4%Q1 2025
TSMTaiwan Semiconductor Manufacturing Co Ltd$23.7M1.09%0.00%NewQ2 2026
PFEPfizer Inc$23.3M1.07%0.02%Not reportedQ4 2015
GBLIGlobal Indemnity Group, LLC$23M1.06%Not reportedNot reportedQ1 2022
IPCXInflection Point Acquisition Corp. III$22.8M1.05%Not reported+25.0%Q2 2025
TSLATesla, Inc.$21M0.97%0.00%Not reportedQ2 2024
SBXDSilverBox Corp IV$20.9M0.96%Not reported+27.4%Q4 2024
EVACEQV Ventures Acquisition Corp. II$19.1M0.88%Not reported+1.6%Q3 2025
LPAALaunch One Acquisition Corp.$18.2M0.84%Not reported+12.6%Q3 2024
KCHVKochav Defense Acquisition Corp.$17.5M0.81%Not reportedNot reportedQ3 2025
MCGAYorkville Acquisition Corp.$16.8M0.77%Not reportedNot reportedQ3 2025
GTERAGloba Terra Acquisition Corp$16.1M0.74%Not reported+47.0%Q3 2025
VLOSVelos Acquisition I Corp.$15.5M0.71%Not reported+48.4%Q3 2024
CEPOCantor Equity Partners I, Inc.$15.4M0.71%Not reported+18.2%Q1 2025
JOEST JOE Co$13.1M0.60%0.37%Not reportedQ4 2024
GIWGigCapital8 Corp.$13M0.60%Not reportedNot reportedQ4 2025
TACOBerto Acquisition Corp.$12.9M0.59%16.34%-32.7%Q2 2025
XRPNArmada Acquisition Corp. II$12.9M0.59%Not reportedNot reportedQ2 2025
CRACCrown Reserve Acquisition Corp. I$12.3M0.57%Not reported+169.5%Q4 2025
FACTFACT II Acquisition Corp.$12.3M0.56%Not reported+254.3%Q4 2024
NPACNew Providence Acquisition Corp. III/Cayman$12.2M0.56%Not reported+82.8%Q2 2025
AMZNAmazon Com Inc$11.9M0.55%0.00%Not reportedQ4 2023
KFIIK&F Growth Acquisition Corp. II$11.9M0.55%Not reported+4.6%Q1 2025
HVIIHennessy Capital Investment Corp. VII$11.5M0.53%Not reported+51.2%Q1 2025
QSEAQuartzsea Acquisition Corp$11.5M0.53%34.96%+169.8%Q2 2025
COPLCopley Acquisition Corp$11.3M0.52%Not reported+5.5%Q2 2025
IPEXInflection Point Acquisition Corp. V$11.1M0.51%Not reported+8.1%Q1 2025
JACSJackson Acquisition Co II$9.87M0.45%Not reported+115.6%Q1 2025
FGIIFG Imperii Acquisition Corp.$9.85M0.45%3.43%Not reportedQ1 2026
CHARCharlton Aria Acquisition Corp$9.49M0.44%Not reportedNot reportedQ4 2024
XSLLXsolla SPAC 1$9.14M0.42%Not reportedNot reportedQ1 2026
LPBBLaunch Two Acquisition Corp.$9.09M0.42%Not reported+3.8%Q4 2024
QUMSQuantumsphere Acquisition Corp$9.01M0.41%28.19%+73.3%Q4 2025
RFAIRF Acquisition Corp II$8.98M0.41%23.20%+6.3%Q3 2024
SOULSoulpower Acquisition Corp.$8.97M0.41%3.38%Not reportedQ2 2025
AEXAAmerican Exceptionalism Acquisition Corp. A$8.84M0.41%Not reported+77.6%Q3 2025
GIXGigCapital9 Corp.$8.78M0.40%Not reportedNot reportedQ1 2026
SZZLSizzle Acquisition Corp. II$8.74M0.40%Not reported+112.6%Q1 2022
MACIMelar Acquisition Corp. I/Cayman$8.71M0.40%Not reported-20.3%Q3 2024
SDHISiddhi Acquisition Corp (Cayman Islands)$8.6M0.40%Not reported+74.6%Q2 2025
Q1 2026Reported May 15, 2026319 positions
EPDEnterprise Products Partners L.P.$258M13.87%0.32%Not reportedQ3 2021
ETEnergy Transfer LP$159M8.55%0.24%Not reportedQ3 2021
KMIKinder Morgan, Inc.$95.1M5.11%0.13%Not reportedQ4 2020
PAAPlains All American Pipeline LP$59.9M3.22%0.38%Not reportedQ3 2025
WESWestern Midstream Partners, LP$52.2M2.80%0.32%+42.8%Q1 2021
ONOn Semiconductor Corp$45.3M2.43%0.19%Not reportedQ2 2022
PGRProgressive Corp$41.2M2.21%0.04%+93.0%Q4 2025
ANSCAgriculture & Natural Solutions Acquisition Corporation$29.7M1.59%Not reported+4.0%Q3 2024
HYACHaymaker Acquisition Corp. 4$26.7M1.44%Not reported+18.2%Q4 2017
GBLIGlobal Indemnity Group, LLC$25M1.35%Not reportedNot reportedQ1 2022
CAEPCantor Equity Partners III, Inc.$23M1.24%Not reported+111.7%Q2 2025
MLACMountain Lake Acquisition Corp.$19.8M1.06%Not reported+418.0%Q1 2025
DRDBRoman DBDR Acquisition Corp. II$18.9M1.01%Not reported+572.9%Q1 2025
TACOBerto Acquisition Corp.$18.7M1.00%24.29%+77.9%Q2 2025
EVACEQV Ventures Acquisition Corp. II$18.7M1.00%Not reportedNot reportedQ3 2025
HDRNHadron Energy, Inc.$18.5M0.99%3.77%+309.8%Q3 2024
IPCXInflection Point Acquisition Corp. III$18.1M0.97%Not reported+49.4%Q2 2025
KCHVKochav Defense Acquisition Corp.$17.3M0.93%Not reported+0.2%Q3 2025
MCGAYorkville Acquisition Corp.$16.6M0.89%Not reported+329.3%Q3 2025
SBXDSilverBox Corp IV$16.2M0.87%Not reported+25.0%Q4 2024
LEGTLegato Merger Corp. III$16.1M0.87%25.84%+360.0%Q2 2024
LPAALaunch One Acquisition Corp.$15.9M0.86%Not reported+4.5%Q3 2024
VACHVoyager Acquisition Corp./Cayman Islands$13.9M0.75%5.15%-27.6%Q4 2024
JOEST JOE Co$13.2M0.71%0.36%Not reportedQ4 2024
GIWGigCapital8 Corp.$12.9M0.69%Not reportedNot reportedQ4 2025
CEPOCantor Equity Partners I, Inc.$12.8M0.69%Not reported+26.0%Q1 2025
XRPNArmada Acquisition Corp. II$12.7M0.68%Not reported+123.5%Q2 2025
ALFCenturion Acquisition Corp.$12.5M0.67%Not reported+376.0%Q3 2024
KFIIK&F Growth Acquisition Corp. II$11.2M0.60%Not reported+10.2%Q1 2025
GTERAGloba Terra Acquisition Corp$10.9M0.58%Not reported+19.8%Q3 2025
MACIMelar Acquisition Corp. I/Cayman$10.8M0.58%Not reported+15.0%Q3 2024
COPLCopley Acquisition Corp$10.6M0.57%Not reported+10.7%Q2 2025
VLOSVelos Acquisition I Corp.$10.3M0.56%Not reported-3.3%Q3 2024
IPEXInflection Point Acquisition Corp. V$10.2M0.55%Not reported+29.4%Q1 2025
CUBLionheart Holdings$9.87M0.53%Not reported+45.1%Q3 2024
FGIIFG Imperii Acquisition Corp.$9.8M0.53%Not reportedNewQ1 2026
SIMASIM Acquisition Corp. I$9.78M0.53%Not reported+74.9%Q3 2024
CHARCharlton Aria Acquisition Corp$9.3M0.50%Not reported+19.4%Q4 2024
GPATGP-Act III Acquisition Corp.$9.18M0.49%Not reported+171.2%Q3 2024
PGACPANTAGES CAPITAL ACQUISITION Corp$9.16M0.49%Not reported+50.3%Q1 2025
XSLLXsolla SPAC 1$9.05M0.49%Not reportedNewQ1 2026
SOULSoulpower Acquisition Corp.$8.88M0.48%3.38%+149.6%Q2 2025
GIXGigCapital9 Corp.$8.67M0.47%Not reportedNewQ1 2026
LPBBLaunch Two Acquisition Corp.$8.67M0.47%Not reported+33.4%Q4 2024
PLMKPlum Acquisition Corp, IV$8.49M0.46%Not reported+4.6%Q1 2025
RFAIRF Acquisition Corp II$8.37M0.45%21.82%+157.3%Q3 2024
DYNCDynamix Corp$8.28M0.44%Not reported+65.9%Q1 2025
CEPVCantor Equity Partners V, Inc.$8.01M0.43%Not reportedNot reportedQ4 2025
VZVerizon Communications Inc$7.91M0.43%0.00%Not reportedQ2 2018
PTORPraetorian Acquisition Corp.$7.8M0.42%Not reportedNewQ1 2026
Q4 2025Reported Feb 13, 2026256 positions
EPDEnterprise Products Partners L.P.$219M10.30%0.32%+13.8%Q3 2021
ETEnergy Transfer LP$136M6.40%0.24%+13.8%Q3 2021
NVDANvidia Corp$82.6M3.89%0.00%+345.3%Q2 2024
KMIKinder Morgan, Inc.$78M3.67%0.13%Not reportedQ4 2020
MSFTMicrosoft Corp$73.8M3.47%0.00%+206.4%Q3 2023
GOOGLAlphabet Inc.$68.7M3.23%0.00%+219300.0%Q4 2017
TSLATesla, Inc.$59.9M2.82%0.00%+34.1%Q2 2024
PAAPlains All American Pipeline LP$48.2M2.27%0.38%+39.3%Q3 2025
ONOn Semiconductor Corp$39.6M1.86%0.18%Not reportedQ2 2022
WESWestern Midstream Partners, LP$35M1.65%0.22%Not reportedQ1 2021
AAMApollo Asset Management, Inc.$34.5M1.62%323031.90%Not reportedQ3 2024
ANSCAgriculture & Natural Solutions Acquisition Corporation$28.3M1.33%Not reported-22.3%Q3 2024
FTWPRESIDIO PRODUCTION Co$27M1.27%Not reported+258.4%Q3 2024
GBLIGlobal Indemnity Group, LLC$26.1M1.23%Not reportedNot reportedQ1 2022
PGRProgressive Corp$24.5M1.15%0.02%NewQ4 2025
NFLXNetflix Inc$23.3M1.10%0.01%NewQ4 2025
HYACHaymaker Acquisition Corp. 4$22.4M1.05%Not reported+16.9%Q4 2017
VACHVoyager Acquisition Corp./Cayman Islands$19.2M0.90%7.12%+46.1%Q4 2024
EVACEQV Ventures Acquisition Corp. II$18.6M0.87%Not reported+4.5%Q3 2025
KCHVKochav Defense Acquisition Corp.$17.1M0.80%Not reported+15.8%Q3 2025
AMZNAmazon Com Inc$16.1M0.76%0.00%-81.6%Q4 2023
LPAALaunch One Acquisition Corp.$15.1M0.71%Not reported+56.0%Q3 2024
CRMSalesforce, Inc.$13.7M0.65%0.01%Not reportedQ2 2024
SBXDSilverBox Corp IV$12.8M0.60%Not reported+607.8%Q4 2024
GIWGigCapital8 Corp.$12.8M0.60%Not reportedNewQ4 2025
JOEST JOE Co$12.4M0.59%0.36%Not reportedQ4 2024
IPCXInflection Point Acquisition Corp. III$12M0.56%Not reported+198.4%Q2 2025
CAEPCantor Equity Partners III, Inc.$10.7M0.51%Not reported+747.5%Q2 2025
VLOSVelos Acquisition I Corp.$10.6M0.50%Not reported+121.8%Q3 2024
TACOBerto Acquisition Corp.$10.4M0.49%13.66%+932.8%Q2 2025
CEPOCantor Equity Partners I, Inc.$10.1M0.48%Not reported+467.6%Q1 2025
KFIIK&F Growth Acquisition Corp. II$10.1M0.47%Not reportedNot reportedQ1 2025
COPLCopley Acquisition Corp$9.47M0.45%Not reportedNot reportedQ2 2025
MACIMelar Acquisition Corp. I/Cayman$9.23M0.43%Not reported+34.5%Q3 2024
GTERAGloba Terra Acquisition Corp$8.96M0.42%Not reported+23.6%Q3 2025
KVACFKeen Vision Acquisition Corp.$8.81M0.41%16.97%+5.0%Q3 2023
CEPVCantor Equity Partners V, Inc.$8.13M0.38%Not reportedNewQ4 2025
CAPNCayson Acquisition Corp$8.12M0.38%41.71%Not reportedQ4 2024
PLMKPlum Acquisition Corp, IV$8.02M0.38%Not reportedNot reportedQ1 2025
IPEXInflection Point Acquisition Corp. V$7.79M0.37%Not reportedNot reportedQ1 2025
CHARCharlton Aria Acquisition Corp$7.7M0.36%Not reported+0.1%Q4 2024
HSPTHorizon Space Acquisition II Corp.$7.61M0.36%33.12%0.0%Q1 2025
BLUWBlue Water Acquisition Corp. III$7.55M0.36%Not reported-21.3%Q2 2021
MRLNMerlin, Inc.$6.79M0.32%0.91%-37.4%Q4 2024
CUBLionheart Holdings$6.72M0.32%Not reported0.0%Q3 2024
VZVerizon Communications Inc$6.42M0.30%0.00%Not reportedQ2 2018
LPBBLaunch Two Acquisition Corp.$6.42M0.30%Not reportedNot reportedQ4 2024
PGACPANTAGES CAPITAL ACQUISITION Corp$6.03M0.28%Not reported+9.4%Q1 2025
RANGRange Capital Acquisition Corp.$5.96M0.28%12.61%Not reportedQ1 2025
CHECChenghe Acquisition III Co.$5.69M0.27%Not reportedNewQ4 2025
Q3 2025Reported Nov 14, 2025210 positions
EPDEnterprise Products Partners L.P.$188M10.81%0.28%+17.9%Q3 2021
ETEnergy Transfer LP$124M7.17%0.21%+14.5%Q3 2021
AMZNAmazon Com Inc$83M4.78%0.00%+55.1%Q4 2023
KMIKinder Morgan, Inc.$80.3M4.63%0.13%-57.2%Q4 2020
VCVisteon Corp$48M2.76%1.47%Not reportedQ2 2019
TSLATesla, Inc.$44.2M2.55%0.00%Not reportedQ2 2024
ONOn Semiconductor Corp$36.1M2.08%0.18%Not reportedQ2 2022
OZKBank OZK$35.8M2.07%Not reportedNot reportedQ2 2024
ANSCAgriculture & Natural Solutions Acquisition Corporation$35.4M2.04%Not reportedNot reportedQ3 2024
WESWestern Midstream Partners, LP$34.9M2.01%0.23%Not reportedQ1 2021
AAMApollo Asset Management, Inc.$34M1.96%323031.90%Not reportedQ3 2024
PAAPlains All American Pipeline LP$32.9M1.89%0.27%NewQ3 2025
GBLIGlobal Indemnity Group, LLC$26.7M1.54%Not reportedNot reportedQ1 2022
MSFTMicrosoft Corp$25.8M1.49%0.00%Not reportedQ3 2023
NTRNutrien Ltd.$25.7M1.48%0.08%Not reportedQ1 2018
HYACHaymaker Acquisition Corp. 4$19.1M1.10%Not reported+826.0%Q4 2017
NVDANvidia Corp$18.6M1.07%0.00%-50.0%Q2 2024
EVACEQV Ventures Acquisition Corp. II$17.6M1.02%Not reportedNewQ3 2025
NETDNabors Energy Transition Corp. II$15.2M0.88%Not reported-12.1%Q3 2023
KCHVKochav Defense Acquisition Corp.$14.6M0.84%Not reportedNewQ3 2025
GOOGAlphabet Inc.$14.5M0.84%Not reported+50.3%Q4 2023
VACHVoyager Acquisition Corp./Cayman Islands$12.9M0.75%4.87%+1.5%Q4 2024
MRLNMerlin, Inc.$10.5M0.61%Not reported-16.5%Q4 2024
JOEST JOE Co$10.4M0.60%0.36%Not reportedQ4 2024
RFAIRF Acquisition Corp II$10.1M0.58%26.70%+24.3%Q3 2024
KFIIK&F Growth Acquisition Corp. II$9.96M0.57%Not reportedNot reportedQ1 2025
LPAALaunch One Acquisition Corp.$9.58M0.55%Not reported+188.6%Q3 2024
COPLCopley Acquisition Corp$9.38M0.54%Not reportedNot reportedQ2 2025
BLUWBlue Water Acquisition Corp. III$9.26M0.53%Not reportedNot reportedQ2 2021
VCICVine Hill Capital Investment Corp.$8.56M0.49%10.90%Not reportedQ4 2024
KVACFKeen Vision Acquisition Corp.$8.22M0.47%16.17%-31.8%Q3 2023
CAPNCayson Acquisition Corp$7.98M0.46%41.71%Not reportedQ4 2024
PLMKPlum Acquisition Corp, IV$7.93M0.46%Not reportedNot reportedQ1 2025
IPEXInflection Point Acquisition Corp. V$7.76M0.45%Not reported+73.9%Q1 2025
CHARCharlton Aria Acquisition Corp$7.62M0.44%Not reported+68.6%Q4 2024
HSPTHorizon Space Acquisition II Corp.$7.47M0.43%33.13%+7.1%Q1 2025
FTWPRESIDIO PRODUCTION Co$7.45M0.43%Not reported+8.1%Q3 2024
GTERAGloba Terra Acquisition Corp$7.16M0.41%Not reportedNewQ3 2025
DTSQDT Cloud Star Acquisition Corp$7.05M0.41%33.68%+69.5%Q1 2025
YHNAYHN Acquisition I Ltd$7.04M0.41%38.49%Not reportedQ4 2024
VZVerizon Communications Inc$6.93M0.40%0.00%Not reportedQ2 2018
MACIMelar Acquisition Corp. I/Cayman$6.78M0.39%Not reported+99.7%Q3 2024
CUBLionheart Holdings$6.64M0.38%Not reportedNot reportedQ3 2024
HVIIHennessy Capital Investment Corp. VII$6.58M0.38%Not reportedNot reportedQ1 2025
FACFactorial Energy Inc.$6.45M0.37%12.80%Not reportedQ2 2025
LPBBLaunch Two Acquisition Corp.$6.4M0.37%Not reportedNot reportedQ4 2024
ASPCASPAC III Acquisition Corp.$6.36M0.37%Not reported+19.3%Q1 2025
HDRNHadron Energy, Inc.$6.13M0.35%2.90%Not reportedQ3 2024
RANGRange Capital Acquisition Corp.$5.9M0.34%12.61%Not reportedQ1 2025
BEAGBold Eagle Acquisition Corp.$5.75M0.33%Not reportedNot reportedQ4 2024
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