MondegarAI
Port Capital LLC

Q4 2025 · 13F-HR

Port Capital LLCholdings as filed

Filed 2026-02-17 · accession 0001104659-26-016441

$2.32B
Reported value
82
Positions
2025-12-31
Period end
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The Brief · Port Capital LLC · Q4 2025

AI · grounded in 13F

Port Capital LLC closed its position in FISV for a reduction of $43.46M. The fund also exited ROP with a $32.08M sell and established a new position in ETN worth $27.49M. Other notable activity includes increasing shares of AXP by 3,851.1% and ATMU by 103.67%.

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
422806208HEI/AHEICO CORP NEW$217.1M9.36%860,156CommonSOLE
75524B104RBCRBC BEARINGS INC$165.9M7.15%369,853CommonSOLE
032095101APHAMPHENOL CORP NEW$125.5M5.41%928,678CommonSOLE
879360105TDYTELEDYNE TECHNOLOGIES INC$120.8M5.21%236,474CommonSOLE
031100100AMEAMETEK INC$92.7M4.00%451,704CommonSOLE
78473E103SPXCSPX TECHNOLOGIES INC$92.4M3.98%461,624CommonSOLE
749607107RLIRLI CORP$89.9M3.88%1,405,163CommonSOLE
67103H107ORLYOREILLY AUTOMOTIVE INC$88.9M3.84%975,177CommonSOLE
701094104PHPARKER-HANNIFIN CORP$78.0M3.36%88,750CommonSOLE
G54950103LINLINDE PLC$75.4M3.25%176,745CommonSOLE
384109104GGGGRACO INC$71.1M3.07%867,057CommonSOLE
942749102WTSWATTS WATER TECHNOLOGIES INC$71.0M3.06%257,271CommonSOLE
829073105SSDSIMPSON MFG INC$66.0M2.85%408,705CommonSOLE
57636Q104MAMASTERCARD INCORPORATED$63.3M2.73%110,904CommonSOLE
45866F104ICEINTERCONTINENTAL EXCHANGE INC$61.8M2.66%381,331CommonSOLE
743315103PGRPROGRESSIVE CORP$60.8M2.62%267,040CommonSOLE
217204106CPRTCOPART INC$56.6M2.44%1,445,358CommonSOLE
G0450A105ACGLARCH CAP GROUP LTD$54.9M2.37%572,792CommonSOLE
127190304CACICACI INTL INC$54.6M2.35%102,392CommonSOLE
903731107ULSUL SOLUTIONS INC$45.9M1.98%581,550CommonSOLE
04956D107ATMUATMUS FILTRATION TECHNOLOGIES$45.5M1.96%876,720CommonSOLE
92826C839VVISA INC$42.2M1.82%120,432CommonSOLE
78409V104SPGIS&P GLOBAL INC$40.6M1.75%77,735CommonSOLE
974250102WINAWINMARK CORP$39.8M1.71%98,188CommonSOLE
13646K108CPCANADIAN PACIFIC KANSAS CITY$39.1M1.69%530,479CommonSOLE
49714P108KNSLKINSALE CAP GROUP INC$38.1M1.64%97,508CommonSOLE
743606105PBPROSPERITY BANCSHARES INC$35.3M1.52%510,153CommonSOLE
824348106SHWSHERWIN WILLIAMS CO$34.8M1.50%107,273CommonSOLE
680223104ORIOLD REP INTL CORP$28.1M1.21%614,804CommonSOLE
G29183103ETNEATON CORP PLC$27.5M1.19%86,309CommonSOLE
37637Q105GBCIGLACIER BANCORP INC NEW$22.9M0.99%520,198CommonSOLE
46137V357RSPINVESCO EXCHANGE TRADED FD TR$21.6M0.93%112,775CommonSOLE
115236101BROBROWN & BROWN INC$21.5M0.93%269,547CommonSOLE
45167R104IEXIDEX CORP$19.4M0.84%109,158CommonSOLE
053015103ADPAUTOMATIC DATA PROCESSING INC$19.2M0.83%74,813CommonSOLE
037833100AAPLAPPLE INC$13.2M0.57%48,672CommonSOLE
025816109AXPAMERICAN EXPRESS CO$12.1M0.52%32,755CommonSOLE
91324P102UNHUNITEDHEALTH GROUP INC$10.0M0.43%30,394CommonSOLE
78462F103SPYSPDR S&P 500 ETF TR$7.6M0.33%11,205CommonSOLE
594918104MSFTMICROSOFT CORP$5.4M0.23%11,245CommonSOLE
194162103CLCOLGATE PALMOLIVE CO$5.2M0.23%66,089CommonSOLE
02079K107GOOGALPHABET INC$5.1M0.22%16,201CommonSOLE
808524805SCHFSCHWAB STRATEGIC TR$3.5M0.15%146,892CommonSOLE
02079K305GOOGLALPHABET INC$2.4M0.11%7,814CommonSOLE
126402106CSWCSW INDUSTRIALS INC$1.7M0.07%5,900CommonSOLE
023135106AMZNAMAZON COM INC$1.6M0.07%7,050CommonSOLE
464285204IAUISHARES GOLD TR$1.6M0.07%19,250CommonSOLE
464287804IJRISHARES TR$1.2M0.05%10,013CommonSOLE
46625H100JPMJPMORGAN CHASE & CO.$1.2M0.05%3,627CommonSOLE
922908769VTIVANGUARD INDEX FDS$1.1M0.05%3,186CommonSOLE
478160104JNJJOHNSON & JOHNSON$1.0M0.04%5,034CommonSOLE
459200101IBMINTERNATIONAL BUSINESS MACHS$1.0M0.04%3,414CommonSOLE
571903202MARMARRIOTT INTL INC NEW$890,3890.04%2,870CommonSOLE
882508104TXNTEXAS INSTRS INC$880,1150.04%5,073CommonSOLE
04010L103ARCCARES CAPITAL CORP$869,8900.04%43,000CommonSOLE
G87052109TELTE CONNECTIVITY PLC$844,0620.04%3,710CommonSOLE
084670702BRK/BBERKSHIRE HATHAWAY INC DEL$822,3350.04%1,636CommonSOLE
78463X889SPDWSPDR INDEX SHS FDS$799,3800.03%18,000CommonSOLE
58933Y105MRKMERCK & CO INC$798,1870.03%7,583CommonSOLE
002824100ABTABBOTT LABS$746,6030.03%5,959CommonSOLE
71654V101PBR/APETROLEO BRASILEIRO SA PETROBR$704,0030.03%62,467CommonSOLE
883556102TMOTHERMO FISHER SCIENTIFIC INC$642,6100.03%1,109CommonSOLE
580135101MCDMCDONALDS CORP$623,1800.03%2,039CommonSOLE
464287473IWSISHARES TR$610,0370.03%4,325CommonSOLE
922042742VTVANGUARD INTL EQUITY INDEX FDS$608,8150.03%4,316CommonSOLE
518439104ELLAUDER ESTEE COS INC$560,3570.02%5,351CommonSOLE
78351F107RYANRYAN SPECIALTY HOLDINGS INC$516,3000.02%10,000CommonSOLE
293792107EPDENTERPRISE PRODS PARTNERS L P$488,9150.02%15,250CommonSOLE
452308109ITWILLINOIS TOOL WKS INC$388,6610.02%1,578CommonSOLE
09260D107BXBLACKSTONE INC$378,1050.02%2,453CommonSOLE
904767803ULUNILEVER PLC$377,8160.02%5,777CommonSOLE
20825C104COPCONOCOPHILLIPS$363,2070.02%3,880CommonSOLE
22160K105COSTCOSTCO WHSL CORP NEW$324,2400.01%376CommonSOLE
718546104PSXPHILLIPS 66$318,2130.01%2,466CommonSOLE
30303M102METAMETA PLATFORMS INC$301,6610.01%457CommonSOLE
38173M102GBDCGOLUB CAP BDC INC$298,5400.01%22,000CommonSOLE
464288257ACWIISHARES TR$282,9800.01%2,000CommonSOLE
808524888SCHCSCHWAB STRATEGIC TR$273,1800.01%6,000CommonSOLE
438516106HONHONEYWELL INTL INC$228,8410.01%1,173CommonSOLE
670346105NUENUCOR CORP$219,5460.01%1,346CommonSOLE
49177J102KVUEKENVUE INC$199,8930.01%11,588CommonSOLE
83422N105SLDPSOLID POWER INC$83,9370.00%19,750CommonSOLE

Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.