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Beck Mack & Oliver LLC

13F filer · CIK 0000010742
Reported Aug 14, 2026
Net seller this quarter
13F portfolio value$5.13BU.S. long equity reported on 13F
Positions18512 new · 4 closed
Net flow last quarter-$96.8MBuys minus sells
Top 10 positions weight45.2%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 14, 2026185 positions
APOApollo Global Management, Inc.$319M6.21%0.47%-2.6%Q3 2018
GOOGAlphabet Inc.$284M5.54%Not reported-12.7%Q3 2018
BXBlackstone Inc.$262M5.12%0.30%-1.3%Q3 2018
AJGArthur J. Gallagher & Co.$244M4.75%0.41%-0.1%Q3 2018
SUNBSunbelt Rentals Holdings, Inc.$237M4.62%0.77%-6.2%Q1 2026
MSFTMicrosoft Corp$204M3.97%0.01%-1.9%Q3 2018
RDNTRadNet, Inc.$195M3.80%4.02%-0.1%Q3 2018
CACCCredit Acceptance Corp$195M3.80%2.95%-1.0%Q3 2018
SGISomnigroup International Inc.$194M3.77%1.17%+2.5%Q1 2025
SCHWSchwab Charles Corp$186M3.63%0.12%-1.3%Q3 2018
FERGFerguson Enterprises Inc.$185M3.60%0.40%-6.6%Q2 2022
ZWSZurn Elkay Water Solutions Corp$173M3.38%2.07%-1.9%Q2 2022
LHLabcorp Holdings Inc.$169M3.30%0.75%-1.9%Q2 2024
WATWaters Corp$163M3.17%0.44%+0.5%Q3 2018
AXPAmerican Express Co$137M2.66%0.06%-1.0%Q3 2018
JPMJPMorgan Chase & Co$123M2.39%0.01%-3.3%Q3 2018
HLTHilton Worldwide Holdings Inc.$119M2.32%0.16%-8.7%Q1 2020
ABTAbbott Laboratories$102M1.99%0.06%+20.1%Q3 2018
GSATGlobalstar, Inc.$89.8M1.75%0.87%-1.1%Q3 2018
GOOGLAlphabet Inc.$79.7M1.55%0.00%-8.1%Q3 2018
RUSHARush Enterprises Inc \tx\$67.9M1.32%Not reported-2.9%Q2 2023
MTDRMatador Resources Co$67.6M1.32%1.10%0.0%Q3 2018
WABWestinghouse Air Brake Technologies Corp$61.9M1.21%0.14%+0.1%Q3 2018
JEFJefferies Financial Group Inc.$61.1M1.19%0.60%-0.1%Q3 2018
QCOMQualcomm Inc$60.8M1.18%0.03%-0.3%Q3 2018
CSGPCostar Group, Inc.$59M1.15%0.51%-28.8%Q2 2022
AMZNAmazon Com Inc$57.8M1.13%0.00%+6.2%Q3 2018
ALCAlcon Inc$56.2M1.10%0.17%+300.6%Q4 2025
ROPRoper Technologies Inc$53.3M1.04%0.16%-3.5%Q3 2018
JNJJohnson & Johnson$52.6M1.03%0.01%-3.3%Q3 2018
MAMastercard Inc$49.6M0.97%0.01%+0.5%Q3 2018
BRK.BBerkshire Hathaway Inc$44.1M0.86%Not reported-1.2%Q3 2018
OWLBlue Owl Capital Inc.$42.2M0.82%70.12%-8.2%Q2 2022
MKLMarkel Group Inc.$38.8M0.76%0.16%+1.4%Q3 2018
TEVATeva Pharmaceutical Industries Ltd$35.8M0.70%0.09%+0.5%Q3 2018
BNBROOKFIELD Corp$34.8M0.68%Not reported+1.7%Q4 2022
AAPLApple Inc.$33.7M0.66%0.00%-0.1%Q3 2018
UNPUnion Pacific Corp$33.2M0.65%0.02%-3.6%Q3 2018
WMTWalmart Inc.$32.7M0.64%0.00%0.0%Q3 2018
WMBWilliams Companies, Inc.$31.2M0.61%0.03%-0.9%Q3 2018
EPDEnterprise Products Partners L.P.$30.3M0.59%0.04%+0.9%Q3 2018
LOWLowes Companies Inc$26.5M0.52%0.02%-1.6%Q3 2018
WBDWarner Bros. Discovery, Inc.$25.7M0.50%0.04%-20.4%Q2 2022
HUBBHubbell Inc$25.2M0.49%0.09%-1.2%Q3 2018
ENBEnbridge Inc$17.4M0.34%0.01%-0.1%Q3 2018
DUKDuke Energy CORP$16M0.31%0.02%+1.0%Q3 2018
ARESAres Management Corp$15.5M0.30%0.04%+18.8%Q4 2022
SYYSysco Corp$15.1M0.29%0.04%+0.7%Q3 2018
FTREFortrea Holdings Inc.$14.5M0.28%0.88%-11.9%Q2 2023
SDHCSmith Douglas Homes Corp.$13M0.25%Not reported-1.8%Q1 2024
Q1 2026Reported May 12, 2026176 positions
APOApollo Global Management, Inc.$308M6.35%0.48%0.0%Q3 2018
GOOGAlphabet Inc.$264M5.45%Not reported-7.8%Q3 2018
BXBlackstone Inc.$260M5.36%0.30%+5.1%Q3 2018
AJGArthur J. Gallagher & Co.$230M4.75%0.41%+20.9%Q3 2018
SUNBSunbelt Rentals Holdings, Inc.$220M4.53%0.82%NewQ1 2026
MSFTMicrosoft Corp$206M4.25%0.01%-2.0%Q3 2018
FERGFerguson Enterprises Inc.$194M4.01%0.43%-1.3%Q2 2022
SCHWSchwab Charles Corp$192M3.96%0.12%-1.0%Q3 2018
SGISomnigroup International Inc.$178M3.67%1.15%+3.7%Q1 2025
RDNTRadNet, Inc.$177M3.65%4.03%-2.0%Q3 2018
LHLabcorp Holdings Inc.$165M3.39%0.75%-1.7%Q2 2024
ZWSZurn Elkay Water Solutions Corp$157M3.23%2.09%-2.5%Q2 2022
CACCCredit Acceptance Corp$131M2.70%2.96%-0.4%Q3 2018
WATWaters Corp$129M2.65%0.44%+10.6%Q3 2018
AXPAmerican Express Co$123M2.54%0.06%-0.4%Q3 2018
HLTHilton Worldwide Holdings Inc.$120M2.47%0.17%-3.9%Q1 2020
CSGPCostar Group, Inc.$118M2.43%0.70%+31.6%Q2 2022
JPMJPMorgan Chase & Co$114M2.35%0.01%-2.3%Q3 2018
ABTAbbott Laboratories$96M1.98%0.05%+6.9%Q3 2018
MTDRMatador Resources Co$85.8M1.77%1.09%-5.2%Q3 2018
GSATGlobalstar, Inc.$74.2M1.53%0.88%-1.9%Q3 2018
GOOGLAlphabet Inc.$69.8M1.44%0.00%-13.7%Q3 2018
RUSHARush Enterprises Inc \tx\$63.3M1.31%Not reported-2.7%Q2 2023
ROPRoper Technologies Inc$57.7M1.19%0.16%-29.4%Q3 2018
WABWestinghouse Air Brake Technologies Corp$57.3M1.18%0.13%-0.8%Q3 2018
JNJJohnson & Johnson$52.3M1.08%0.01%-2.5%Q3 2018
JEFJefferies Financial Group Inc.$50.5M1.04%0.60%-0.8%Q3 2018
MAMastercard Inc$48M0.99%0.01%+0.2%Q3 2018
OWLBlue Owl Capital Inc.$47.9M0.99%76.39%-32.4%Q2 2022
AMZNAmazon Com Inc$47.6M0.98%0.00%+10.1%Q3 2018
BRK.BBerkshire Hathaway Inc$42.7M0.88%Not reported-3.4%Q3 2018
QCOMQualcomm Inc$42.5M0.88%0.03%+1.1%Q3 2018
MKLMarkel Group Inc.$37.5M0.77%0.16%-9.2%Q3 2018
WMTWalmart Inc.$35.9M0.74%0.00%-1.4%Q3 2018
WBDWarner Bros. Discovery, Inc.$33.2M0.68%0.05%-35.4%Q2 2022
BNBROOKFIELD Corp$32.5M0.67%Not reported-4.5%Q4 2022
TEVATeva Pharmaceutical Industries Ltd$31.7M0.65%0.09%-0.5%Q3 2018
EPDEnterprise Products Partners L.P.$30.9M0.64%0.04%+2.8%Q3 2018
WMBWilliams Companies, Inc.$30.9M0.64%0.03%-0.6%Q3 2018
UNPUnion Pacific Corp$30.7M0.63%0.02%-0.6%Q3 2018
AAPLApple Inc.$29.6M0.61%0.00%-0.8%Q3 2018
LOWLowes Companies Inc$28.8M0.59%0.02%-12.2%Q3 2018
HUBBHubbell Inc$24M0.49%0.09%-0.8%Q3 2018
ENBEnbridge Inc$17.3M0.36%0.01%-1.3%Q3 2018
DUKDuke Energy CORP$16.4M0.34%0.02%0.0%Q3 2018
ALCAlcon Inc$15.8M0.32%0.04%+674.4%Q4 2025
NTRNutrien Ltd.$13.7M0.28%0.03%-3.1%Q3 2018
ARESAres Management Corp$12.8M0.26%0.04%+53.5%Q4 2022
SYYSysco Corp$12.8M0.26%0.04%-0.6%Q3 2018
PKEPark Aerospace Corp$11.6M0.24%2.12%-36.7%Q3 2020
Q4 2025Reported Feb 12, 2026172 positions
APOApollo Global Management, Inc.$400M7.27%0.48%+0.3%Q3 2018
BXBlackstone Inc.$331M6.02%0.29%-0.2%Q3 2018
GOOGAlphabet Inc.$313M5.69%Not reported-6.9%Q3 2018
MSFTMicrosoft Corp$274M4.99%0.01%-1.3%Q3 2018
RDNTRadNet, Inc.$231M4.19%4.18%-1.4%Q3 2018
AJGArthur J. Gallagher & Co.$227M4.13%0.34%+19.8%Q3 2018
SGISomnigroup International Inc.$207M3.77%1.11%0.0%Q1 2025
SCHWSchwab Charles Corp$206M3.75%0.12%+0.1%Q3 2018
FERGFerguson Enterprises Inc.$188M3.41%0.43%-0.6%Q2 2022
ZWSZurn Elkay Water Solutions Corp$167M3.03%2.15%-1.8%Q2 2022
LHLabcorp Holdings Inc.$157M2.86%0.76%+2.7%Q2 2024
AXPAmerican Express Co$151M2.75%0.06%+2.1%Q3 2018
CSGPCostar Group, Inc.$150M2.72%0.53%+29.1%Q2 2022
WATWaters Corp$148M2.69%0.66%-1.1%Q3 2018
CACCCredit Acceptance Corp$138M2.50%2.91%-8.0%Q3 2018
JPMJPMorgan Chase & Co$128M2.32%0.01%-0.3%Q3 2018
HLTHilton Worldwide Holdings Inc.$118M2.14%0.18%0.0%Q1 2020
OWLBlue Owl Capital Inc.$116M2.11%112.97%+13.3%Q2 2022
ABTAbbott Laboratories$110M1.99%0.05%+1.2%Q3 2018
ROPRoper Technologies Inc$103M1.87%0.22%+0.1%Q3 2018
GOOGLAlphabet Inc.$88M1.60%0.00%-23.1%Q3 2018
JEFJefferies Financial Group Inc.$76.4M1.39%0.60%-2.8%Q3 2018
GSATGlobalstar, Inc.$69.5M1.26%0.90%-2.6%Q3 2018
MTDRMatador Resources Co$60.8M1.10%1.15%+2.0%Q3 2018
QCOMQualcomm Inc$55.8M1.01%0.03%-3.4%Q3 2018
MAMastercard Inc$54.7M0.99%0.01%+0.6%Q3 2018
WBDWarner Bros. Discovery, Inc.$53.9M0.98%0.08%-8.0%Q2 2022
RUSHARush Enterprises Inc \tx\$53.1M0.96%Not reported+1.6%Q2 2023
WABWestinghouse Air Brake Technologies Corp$49.3M0.90%0.14%-3.2%Q3 2018
AMZNAmazon Com Inc$47.9M0.87%0.00%+14.5%Q3 2018
MKLMarkel Group Inc.$46.4M0.84%0.17%-7.5%Q3 2018
BRK.BBerkshire Hathaway Inc$46.3M0.84%Not reported-1.6%Q3 2018
JNJJohnson & Johnson$45.5M0.83%0.01%-0.6%Q3 2018
BNBROOKFIELD Corp$38.6M0.70%Not reported-0.1%Q4 2022
LOWLowes Companies Inc$33.5M0.61%0.02%-1.7%Q3 2018
TEVATeva Pharmaceutical Industries Ltd$33M0.60%0.09%-3.7%Q3 2018
WMTWalmart Inc.$32.7M0.59%0.00%-1.8%Q3 2018
AAPLApple Inc.$31.9M0.58%0.00%+5.9%Q3 2018
UNPUnion Pacific Corp$29.5M0.54%0.02%-0.1%Q3 2018
WMBWilliams Companies, Inc.$25.6M0.47%0.03%-3.3%Q3 2018
EPDEnterprise Products Partners L.P.$25.5M0.46%0.04%-1.5%Q3 2018
HUBBHubbell Inc$21.9M0.40%0.09%-0.6%Q3 2018
ENBEnbridge Inc$15.5M0.28%0.01%-3.4%Q3 2018
DUKDuke Energy CORP$14.7M0.27%0.02%Not reportedQ3 2018
PKEPark Aerospace Corp$14.3M0.26%3.36%-2.9%Q3 2020
FTREFortrea Holdings Inc.$13.9M0.25%0.86%-42.7%Q2 2023
SDHCSmith Douglas Homes Corp.$13.7M0.25%Not reported+0.4%Q1 2024
SYYSysco Corp$13.3M0.24%0.04%-0.4%Q3 2018
ARESAres Management Corp$12.4M0.22%0.02%+50.8%Q4 2022
DIBS1stdibs.com, Inc.$11.7M0.21%5.29%-40.7%Q3 2021
Q3 2025Reported Nov 14, 2025169 positions
BXBlackstone Inc.$368M6.69%0.29%-2.8%Q3 2018
APOApollo Global Management, Inc.$367M6.68%0.48%-1.7%Q3 2018
MSFTMicrosoft Corp$298M5.41%0.01%-11.2%Q3 2018
GOOGAlphabet Inc.$261M4.75%Not reported-4.0%Q3 2018
RDNTRadNet, Inc.$250M4.54%4.25%+0.4%Q3 2018
AJGArthur J. Gallagher & Co.$227M4.14%0.29%+4.7%Q3 2018
SCHWSchwab Charles Corp$197M3.58%0.11%-1.9%Q3 2018
SGISomnigroup International Inc.$196M3.56%1.11%-0.6%Q1 2025
FERGFerguson Enterprises Inc.$191M3.47%0.43%-1.6%Q2 2022
LHLabcorp Holdings Inc.$175M3.19%0.74%-0.5%Q2 2024
ZWSZurn Elkay Water Solutions Corp$172M3.12%2.18%-1.4%Q2 2022
CACCCredit Acceptance Corp$157M2.86%3.05%-10.4%Q3 2018
CSGPCostar Group, Inc.$145M2.64%0.41%-0.2%Q2 2022
AXPAmerican Express Co$133M2.42%0.06%-0.6%Q3 2018
JPMJPMorgan Chase & Co$126M2.28%0.01%-1.4%Q3 2018
WATWaters Corp$118M2.15%0.66%+58.5%Q3 2018
OWLBlue Owl Capital Inc.$116M2.11%99.73%+1.2%Q2 2022
ABTAbbott Laboratories$116M2.11%0.05%+2.1%Q3 2018
ROPRoper Technologies Inc$115M2.09%0.21%+2.0%Q3 2018
HLTHilton Worldwide Holdings Inc.$106M1.94%0.18%-1.5%Q1 2020
GOOGLAlphabet Inc.$88.9M1.62%0.00%-14.3%Q3 2018
JEFJefferies Financial Group Inc.$82.9M1.51%0.61%-1.3%Q3 2018
MTDRMatador Resources Co$63.1M1.15%1.13%-0.3%Q3 2018
QCOMQualcomm Inc$56.1M1.02%0.03%-0.8%Q3 2018
MAMastercard Inc$54.2M0.99%0.01%-0.3%Q3 2018
RUSHARush Enterprises Inc \tx\$51.8M0.94%Not reported-1.3%Q2 2023
WABWestinghouse Air Brake Technologies Corp$47.8M0.87%0.14%-1.4%Q3 2018
BRK.BBerkshire Hathaway Inc$47.1M0.86%Not reported-1.1%Q3 2018
MKLMarkel Group Inc.$44.6M0.81%0.18%-7.9%Q3 2018
GSATGlobalstar, Inc.$42.5M0.77%0.92%-1.0%Q3 2018
JNJJohnson & Johnson$41M0.75%0.01%-2.7%Q3 2018
AMZNAmazon Com Inc$39.8M0.72%0.00%+1.2%Q3 2018
WBDWarner Bros. Discovery, Inc.$39.7M0.72%0.08%-9.3%Q2 2022
BNBROOKFIELD Corp$38.5M0.70%Not reported-0.3%Q4 2022
LOWLowes Companies Inc$35.5M0.65%0.03%-0.5%Q3 2018
WMTWalmart Inc.$30.8M0.56%0.00%-0.7%Q3 2018
UNPUnion Pacific Corp$30.2M0.55%0.02%0.0%Q3 2018
AAPLApple Inc.$28.2M0.51%0.00%-1.9%Q3 2018
WMBWilliams Companies, Inc.$27.9M0.51%0.04%-2.3%Q3 2018
EPDEnterprise Products Partners L.P.$25.2M0.46%0.04%-9.8%Q3 2018
TEVATeva Pharmaceutical Industries Ltd$22.2M0.40%0.10%-0.2%Q3 2018
HUBBHubbell Inc$21.3M0.39%0.09%-0.4%Q3 2018
ENBEnbridge Inc$17M0.31%0.02%-3.4%Q3 2018
DUKDuke Energy CORP$15.5M0.28%0.02%-0.7%Q3 2018
SYYSysco Corp$14.9M0.27%0.04%-0.3%Q3 2018
SDHCSmith Douglas Homes Corp.$14.4M0.26%Not reported-2.7%Q1 2024
PKEPark Aerospace Corp$14M0.25%3.46%-8.5%Q3 2020
FTREFortrea Holdings Inc.$11.8M0.21%1.52%-30.5%Q2 2023
NTRNutrien Ltd.$11M0.20%0.03%+0.3%Q3 2018
SHWSherwin Williams Co$10.8M0.20%0.01%-12.6%Q4 2018
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