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Port Capital LLC

13F filer · CIK 0001729212
Reported Aug 14, 2026
Net seller this quarter
13F portfolio value$2.45BU.S. long equity reported on 13F
Positions9017 new · 1 closed
Net flow last quarter-$40.6MBuys minus sells
Top 10 positions weight51.1%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 14, 202690 positions
HEI.AHeico Corp$207M8.47%Not reported-2.6%Q4 2017
RBCRBC Bearings INC$187M7.63%0.89%-15.6%Q4 2017
TDYTeledyne Technologies Inc$163M6.65%0.53%-2.6%Q4 2017
APHAmphenol Corp$131M5.35%0.06%-8.5%Q4 2017
SPXCSPX Technologies, Inc.$109M4.46%0.89%-3.3%Q4 2023
AMEAmetek Inc/$102M4.18%0.18%-2.1%Q4 2017
WTSWatts Water Technologies Inc$97.4M3.98%Not reported-3.3%Q3 2023
LINLinde PLC$87.3M3.56%0.04%-1.6%Q4 2018
ORLYO Reilly Automotive Inc$85.5M3.49%0.11%-1.5%Q4 2017
SSDSimpson Manufacturing Co., Inc.$82.6M3.37%0.96%-3.4%Q2 2019
PHParker-Hannifin Corp$81.1M3.31%0.07%-2.0%Q4 2023
RLIRli Corp$79.5M3.24%1.47%-3.0%Q4 2017
GGGGraco Inc$67M2.73%0.53%-3.3%Q4 2017
CACICaci International Inc$55.9M2.28%0.55%+17.8%Q1 2023
ATMUAtmus Filtration Technologies Inc.$52.7M2.15%1.27%+13.8%Q3 2025
PGRProgressive Corp$51.9M2.12%0.04%-2.7%Q3 2019
MAMastercard Inc$50.1M2.04%0.01%-1.4%Q4 2017
ETNEaton Corp plc$48.4M1.97%0.03%+5.7%Q4 2017
ACGLArch Capital Group Ltd.$48.2M1.97%0.14%-2.3%Q1 2018
ULSUL Solutions Inc.$48M1.96%0.23%-18.8%Q3 2024
CPCanadian Pacific Kansas City Ltd$47.9M1.96%0.06%-2.0%Q4 2017
ICEIntercontinental Exchange, Inc.$44.4M1.81%0.06%-1.6%Q4 2017
VVisa Inc.$42.1M1.72%0.01%+4.8%Q4 2017
CPRTCopart Inc$40.8M1.66%0.16%-3.3%Q4 2017
SHWSherwin Williams Co$40.5M1.65%0.05%-1.6%Q1 2024
WINAWinmark Corp$36.7M1.50%2.42%-11.6%Q4 2017
PBProsperity Bancshares Inc$33.7M1.37%0.46%-9.9%Q4 2019
AXPAmerican Express Co$33.5M1.37%0.01%+4.4%Q4 2017
KNSLKinsale Capital Group, Inc.$31.1M1.27%0.41%-3.4%Q2 2021
ORIOld Republic International Corp$30.2M1.23%0.31%-3.4%Q3 2025
GBCIGlacier Bancorp, Inc.$26.2M1.07%0.39%-3.0%Q3 2020
IEXIdex Corp$24.6M1.00%0.15%-2.3%Q4 2017
DGIIDigi International Inc$24.1M0.98%0.85%+24.5%Q1 2026
MDLNMedline Inc.$22.9M0.93%Not reported+94.1%Q1 2026
AAPLApple Inc.$13.9M0.57%0.00%+3.0%Q4 2017
SPYSPDR S&P 500 ETF Trust$11.7M0.48%Not reported+37.6%Q4 2017
SPGIS&P Global Inc.$11.7M0.48%0.01%+1.3%Q3 2025
MSIMotorola Solutions, Inc.$11.5M0.47%0.02%NewQ2 2026
RVTYRevvity, Inc.$9.57M0.39%0.08%NewQ2 2026
CLColgate Palmolive Co$6.03M0.25%0.01%-0.6%Q4 2017
GOOGAlphabet Inc.$5.73M0.23%Not reported+1.2%Q4 2017
MSFTMicrosoft Corp$3.56M0.15%0.00%-7.4%Q4 2017
GOOGLAlphabet Inc.$3.12M0.13%0.00%+11.9%Q4 2017
AMZNAmazon Com Inc$1.99M0.08%0.00%+19.4%Q4 2017
IAUIshares Gold Trust$1.46M0.06%0.00%+0.8%Q4 2017
CSWCSW Industrials, Inc.$1.39M0.06%0.03%-2.0%Q4 2017
JNJJohnson & Johnson$1.37M0.06%0.00%+7.9%Q4 2017
TXNTexas Instruments Inc$1.35M0.06%0.00%-2.1%Q4 2017
MARMarriott International Inc$1.13M0.05%0.00%+6.9%Q3 2024
BRK.BBerkshire Hathaway Inc$1.01M0.04%Not reported+39.9%Q4 2017
Q1 2026Reported May 15, 202674 positions
RBCRBC Bearings INC$187M8.30%1.05%-7.0%Q4 2017
HEI.AHeico Corp$174M7.75%Not reported-4.0%Q4 2017
TDYTeledyne Technologies Inc$152M6.75%0.54%+6.1%Q4 2017
APHAmphenol Corp$103M4.57%0.07%-12.5%Q4 2017
AMEAmetek Inc/$92.7M4.12%0.19%-4.3%Q4 2017
SPXCSPX Technologies, Inc.$92M4.09%0.92%-0.3%Q4 2023
ORLYO Reilly Automotive Inc$87M3.87%0.11%-3.3%Q4 2017
LINLinde PLC$84.7M3.77%0.04%-3.3%Q4 2018
RLIRli Corp$79.1M3.52%1.51%-1.3%Q4 2017
GGGGraco Inc$77.6M3.45%0.55%+5.7%Q4 2017
PHParker-Hannifin Corp$75.8M3.37%0.07%-4.6%Q4 2023
WTSWatts Water Technologies Inc$74.7M3.32%Not reported+0.1%Q3 2023
SSDSimpson Manufacturing Co., Inc.$70M3.11%0.99%-0.2%Q2 2019
ICEIntercontinental Exchange, Inc.$57.6M2.56%0.06%-4.0%Q4 2017
CACICaci International Inc$55.7M2.48%0.46%+0.1%Q1 2023
ATMUAtmus Filtration Technologies Inc.$51.6M2.29%1.11%+3.7%Q3 2025
CPRTCopart Inc$49.7M2.21%0.16%+3.6%Q4 2017
ULSUL Solutions Inc.$49.7M2.21%0.29%-0.3%Q3 2024
MAMastercard Inc$49.4M2.20%0.01%-10.9%Q4 2017
ACGLArch Capital Group Ltd.$48.8M2.17%0.14%-11.2%Q1 2018
PGRProgressive Corp$48.4M2.15%0.04%-8.5%Q3 2019
CPCanadian Pacific Kansas City Ltd$44.2M1.97%0.06%+6.3%Q4 2017
WINAWinmark Corp$42M1.87%2.74%0.0%Q4 2017
ETNEaton Corp plc$38.4M1.71%0.03%+24.5%Q4 2017
SHWSherwin Williams Co$38.3M1.70%0.05%+11.5%Q1 2024
VVisa Inc.$35.3M1.57%0.01%-2.9%Q4 2017
PBProsperity Bancshares Inc$34.4M1.53%0.51%+0.3%Q4 2019
KNSLKinsale Capital Group, Inc.$33.3M1.48%0.42%+0.1%Q2 2021
ORIOld Republic International Corp$30.5M1.36%0.32%+24.4%Q3 2025
AXPAmerican Express Co$28.7M1.28%0.01%+189.7%Q4 2017
GBCIGlacier Bancorp, Inc.$23.4M1.04%0.40%+0.7%Q3 2020
IEXIdex Corp$21M0.93%0.15%+1.4%Q4 2017
MDLNMedline Inc.$13.3M0.59%Not reportedNewQ1 2026
DGIIDigi International Inc$12.4M0.55%0.69%NewQ1 2026
SPGIS&P Global Inc.$12M0.53%0.01%-63.6%Q3 2025
AAPLApple Inc.$11.8M0.53%0.00%-4.2%Q4 2017
SPYSPDR S&P 500 ETF Trust$7.38M0.33%Not reported+1.3%Q4 2017
CLColgate Palmolive Co$5.63M0.25%0.01%0.0%Q4 2017
GOOGAlphabet Inc.$4.59M0.20%Not reported-1.2%Q4 2017
MSFTMicrosoft Corp$3.81M0.17%0.00%-8.4%Q4 2017
GOOGLAlphabet Inc.$2.25M0.10%0.00%Not reportedQ4 2017
IAUIshares Gold Trust$1.7M0.08%0.00%Not reportedQ4 2017
AMZNAmazon Com Inc$1.46M0.06%0.00%-0.8%Q4 2017
CSWCSW Industrials, Inc.$1.33M0.06%0.03%-13.6%Q4 2017
JNJJohnson & Johnson$1.22M0.05%0.00%-0.9%Q4 2017
JPMJPMorgan Chase & Co$1.04M0.05%0.00%-2.5%Q4 2017
PBR.APetrobras - Petroleo Brasileiro SA$1.01M0.04%Not reported-14.2%Q3 2018
MARMarriott International Inc$934K0.04%0.00%-0.5%Q3 2024
MRKMerck & Co., Inc.$903K0.04%0.00%-1.0%Q3 2018
TXNTexas Instruments Inc$900K0.04%0.00%-8.6%Q4 2017
Q4 2025Reported Feb 17, 202674 positions
HEI.AHeico Corp$217M9.36%Not reported+0.5%Q4 2017
RBCRBC Bearings INC$166M7.15%1.13%+0.6%Q4 2017
APHAmphenol Corp$126M5.41%0.08%-13.9%Q4 2017
TDYTeledyne Technologies Inc$121M5.21%0.51%+21.7%Q4 2017
AMEAmetek Inc/$92.7M4.00%0.20%-0.2%Q4 2017
SPXCSPX Technologies, Inc.$92.4M3.98%0.93%+0.5%Q4 2023
RLIRli Corp$89.9M3.88%1.53%-8.6%Q4 2017
ORLYO Reilly Automotive Inc$88.9M3.84%0.12%+0.3%Q4 2017
PHParker-Hannifin Corp$78M3.36%0.07%+6.8%Q4 2023
LINLinde PLC$75.4M3.25%0.04%+0.4%Q4 2018
GGGGraco Inc$71.1M3.07%0.53%+0.7%Q4 2017
WTSWatts Water Technologies Inc$71M3.06%Not reported+2.4%Q3 2023
SSDSimpson Manufacturing Co., Inc.$66M2.85%0.99%+0.6%Q2 2019
MAMastercard Inc$63.3M2.73%0.01%+0.3%Q4 2017
ICEIntercontinental Exchange, Inc.$61.8M2.66%0.07%+0.4%Q4 2017
PGRProgressive Corp$60.8M2.62%0.05%-22.8%Q3 2019
CPRTCopart Inc$56.6M2.44%0.15%+1.1%Q4 2017
ACGLArch Capital Group Ltd.$54.9M2.37%0.16%-11.9%Q1 2018
CACICaci International Inc$54.6M2.35%0.46%-13.7%Q1 2023
ULSUL Solutions Inc.$45.9M1.98%0.29%-7.0%Q3 2024
ATMUAtmus Filtration Technologies Inc.$45.5M1.96%1.08%+103.7%Q3 2025
VVisa Inc.$42.2M1.82%0.01%+7.1%Q4 2017
SPGIS&P Global Inc.$40.6M1.75%0.03%+62.3%Q3 2025
WINAWinmark Corp$39.8M1.71%2.75%+0.1%Q4 2017
CPCanadian Pacific Kansas City Ltd$39.1M1.69%0.06%+0.3%Q4 2017
KNSLKinsale Capital Group, Inc.$38.1M1.64%0.42%-11.1%Q2 2021
PBProsperity Bancshares Inc$35.3M1.52%0.55%-7.8%Q4 2019
SHWSherwin Williams Co$34.8M1.50%0.04%+0.4%Q1 2024
ORIOld Republic International Corp$28.1M1.21%0.25%+26.6%Q3 2025
ETNEaton Corp plc$27.5M1.19%0.02%Not reportedQ4 2017
GBCIGlacier Bancorp, Inc.$22.9M0.99%0.40%-25.6%Q3 2020
BROBrown & Brown, Inc.$21.5M0.93%0.08%-21.5%Q2 2024
IEXIdex Corp$19.4M0.84%0.15%-0.6%Q4 2017
ADPAutomatic Data Processing Inc$19.2M0.83%0.02%-39.7%Q3 2024
AAPLApple Inc.$13.2M0.57%0.00%-0.4%Q4 2017
AXPAmerican Express Co$12.1M0.52%0.00%+3851.2%Q4 2017
UNHUnitedhealth Group Inc$10M0.43%0.00%-63.2%Q4 2017
SPYSPDR S&P 500 ETF Trust$7.64M0.33%Not reported-1.6%Q4 2017
MSFTMicrosoft Corp$5.44M0.23%0.00%+0.2%Q4 2017
CLColgate Palmolive Co$5.22M0.23%0.01%-0.8%Q4 2017
GOOGAlphabet Inc.$5.08M0.22%Not reported-0.4%Q4 2017
GOOGLAlphabet Inc.$2.45M0.11%0.00%-0.6%Q4 2017
CSWCSW Industrials, Inc.$1.73M0.07%0.04%Not reportedQ4 2017
AMZNAmazon Com Inc$1.63M0.07%0.00%+0.6%Q4 2017
IAUIshares Gold Trust$1.56M0.07%0.00%-2.5%Q4 2017
JPMJPMorgan Chase & Co$1.17M0.05%0.00%Not reportedQ4 2017
JNJJohnson & Johnson$1.04M0.04%0.00%-0.9%Q4 2017
IBMInternational Business Machines Corp$1.01M0.04%0.00%-0.8%Q4 2017
MARMarriott International Inc$890K0.04%0.00%-1.3%Q3 2024
TXNTexas Instruments Inc$880K0.04%0.00%-3.1%Q4 2017
Q3 2025Reported Nov 14, 202576 positions
HEI.AHeico Corp$218M9.07%Not reported+0.6%Q4 2017
RBCRBC Bearings INC$144M5.98%1.13%+0.9%Q4 2017
APHAmphenol Corp$133M5.56%0.09%-7.9%Q4 2017
TDYTeledyne Technologies Inc$114M4.75%0.41%+1.2%Q4 2017
ORLYO Reilly Automotive Inc$105M4.37%0.11%+0.2%Q4 2017
RLIRli Corp$100M4.18%1.67%-0.4%Q4 2017
SPXCSPX Technologies, Inc.$85.8M3.57%0.92%+0.8%Q4 2023
PGRProgressive Corp$85.4M3.56%0.06%-0.1%Q3 2019
AMEAmetek Inc/$85.1M3.55%0.20%-5.0%Q4 2017
LINLinde PLC$83.6M3.48%0.04%+0.1%Q4 2018
GGGGraco Inc$73.2M3.05%0.52%+1.0%Q4 2017
WTSWatts Water Technologies Inc$70.2M2.92%Not reported+1.0%Q3 2023
SSDSimpson Manufacturing Co., Inc.$68M2.84%0.98%+1.0%Q2 2019
CPRTCopart Inc$64.3M2.68%0.15%+1.2%Q4 2017
ICEIntercontinental Exchange, Inc.$64M2.67%0.07%+0.1%Q4 2017
PHParker-Hannifin Corp$63M2.63%0.07%+0.2%Q4 2023
MAMastercard Inc$62.9M2.62%0.01%+0.2%Q4 2017
CACICaci International Inc$59.2M2.47%0.54%+1.0%Q1 2023
ACGLArch Capital Group Ltd.$59M2.46%0.17%-0.2%Q1 2018
WINAWinmark Corp$48.8M2.04%2.75%-9.3%Q4 2017
KNSLKinsale Capital Group, Inc.$46.6M1.94%0.47%+1.0%Q2 2021
ULSUL Solutions Inc.$44.3M1.85%0.31%+1.0%Q3 2024
FISVFiserv Inc$43.5M1.81%0.06%+0.3%Q2 2021
CPCanadian Pacific Kansas City Ltd$39.4M1.64%0.06%+0.4%Q4 2017
VVisa Inc.$38.4M1.60%0.01%+0.1%Q4 2017
SHWSherwin Williams Co$37M1.54%0.04%+0.2%Q1 2024
PBProsperity Bancshares Inc$36.7M1.53%0.58%+0.9%Q4 2019
ADPAutomatic Data Processing Inc$36.4M1.52%0.03%+0.3%Q3 2024
GBCIGlacier Bancorp, Inc.$34M1.42%0.59%+0.9%Q3 2020
BROBrown & Brown, Inc.$32.2M1.34%0.10%+0.4%Q2 2024
ROPRoper Technologies Inc$32.1M1.34%0.06%-13.9%Q4 2017
UNHUnitedhealth Group Inc$28.5M1.19%0.01%-2.9%Q4 2017
SPGIS&P Global Inc.$23.3M0.97%0.02%NewQ3 2025
ORIOld Republic International Corp$20.6M0.86%0.20%NewQ3 2025
ATMUAtmus Filtration Technologies Inc.$19.4M0.81%0.52%NewQ3 2025
IEXIdex Corp$17.9M0.74%0.15%-39.5%Q4 2017
AAPLApple Inc.$12.4M0.52%0.00%-0.9%Q4 2017
SPYSPDR S&P 500 ETF Trust$7.59M0.32%Not reported-0.2%Q4 2017
MSFTMicrosoft Corp$5.82M0.24%0.00%-19.8%Q4 2017
CLColgate Palmolive Co$5.32M0.22%0.01%-2.0%Q4 2017
GOOGAlphabet Inc.$3.96M0.17%Not reported-2.5%Q4 2017
GOOGLAlphabet Inc.$1.91M0.08%0.00%-6.0%Q4 2017
AMZNAmazon Com Inc$1.54M0.06%0.00%-4.7%Q4 2017
IAUIshares Gold Trust$1.44M0.06%0.00%-5.3%Q4 2017
CSWCSW Industrials, Inc.$1.43M0.06%0.04%Not reportedQ4 2017
JPMJPMorgan Chase & Co$1.14M0.05%0.00%-3.4%Q4 2017
IBMInternational Business Machines Corp$971K0.04%0.00%Not reportedQ4 2017
TXNTexas Instruments Inc$962K0.04%0.00%Not reportedQ4 2017
JNJJohnson & Johnson$942K0.04%0.00%Not reportedQ4 2017
ARCCAres Capital Corp$878K0.04%0.01%Not reportedQ2 2023
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