Port Capital LLC — 13F Holdings & Portfolio
CIK 1729212 · latest 13F-HR filed 2026-05-15
Port Capital LLC manages $2.25B in 13F-reported U.S. long-equity assets across 82 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are RBC (8.30%), HEI.A (7.75%), TDY (6.75%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 4 new positions, exited 4, added to 28, and trimmed 32.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$2.25B
Long-equity book
82
Distinct positions
2026-03-31
Filed 2026-05-15
+4 / −4 / ↑28 / ↓32
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- TELEDYNE TECHNOLOGIES INC$31.0M +25.7%
- RBC BEARINGS INC$20.9M +12.6%
- AMERICAN EXPRESS CO$16.6M +136.9%
- EATON CORP PLC$10.9M +39.8%
- LINDE PLC$9.4M +12.4%
Top Trims
- HEICO CORP NEW-$42.8M -19.7%
- S&P GLOBAL INC-$28.6M -70.4%
- AMPHENOL CORP-$22.8M -18.2%
- MASTERCARD INCORPORATED-$13.9M -22.0%
- PROGRESSIVE CORP-$12.4M -20.3%
Exited Positions
- BROWN & BROWN INC$21.5M
- AUTOMATIC DATA PROCESSING INC$19.2M
- UNITEDHEALTH GROUP INC$10.0M
- META PLATFORMS INC$301.7K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | RBC BEARINGS INC | RBC | 75524B104 | $186.7M | 8.30% | 343,831 | SH |
| 2 | HEICO CORP NEW | HEI.A | 422806208 | $174.4M | 7.75% | 826,086 | SH |
| 3 | TELEDYNE TECHNOLOGIES INC | TDY | 879360105 | $151.8M | 6.75% | 250,831 | SH |
| 4 | AMPHENOL CORP | APH | 032095101 | $102.7M | 4.57% | 812,604 | SH |
| 5 | AMETEK INC | AME | 031100100 | $92.7M | 4.12% | 432,246 | SH |
| 6 | SPX TECHNOLOGIES INC | SPXC | 78473E103 | $92.0M | 4.09% | 460,289 | SH |
| 7 | OREILLY AUTOMOTIVE INC | ORLY | 67103H107 | $87.0M | 3.87% | 942,570 | SH |
| 8 | LINDE PLC | LIN | G54950103 | $84.7M | 3.77% | 170,919 | SH |
| 9 | RLI CORP | RLI | 749607107 | $79.1M | 3.52% | 1,387,507 | SH |
| 10 | GRACO INC | GGG | 384109104 | $77.6M | 3.45% | 916,397 | SH |
| 11 | PARKER-HANNIFIN CORP | PH | 701094104 | $75.8M | 3.37% | 84,638 | SH |
| 12 | WATTS WATER TECHNOLOGIES INC | WTS | 942749102 | $74.7M | 3.32% | 257,406 | SH |
| 13 | SIMPSON MFG INC | SSD | 829073105 | $70.0M | 3.11% | 408,069 | SH |
| 14 | INTERCONTINENTAL EXCHANGE INC | ICE | 45866F104 | $57.6M | 2.56% | 366,233 | SH |
| 15 | CACI INTL INC | CACI | 127190304 | $55.7M | 2.48% | 102,502 | SH |
| 16 | ATMUS FILTRATION TECHNOLOGIES | ATMU | 04956D107 | $51.6M | 2.29% | 908,680 | SH |
| 17 | COPART INC | CPRT | 217204106 | $49.7M | 2.21% | 1,496,709 | SH |
| 18 | UL SOLUTIONS INC | ULS | 903731107 | $49.7M | 2.21% | 579,675 | SH |
| 19 | MASTERCARD INCORPORATED | MA | 57636Q104 | $49.4M | 2.20% | 98,867 | SH |
| 20 | ARCH CAP GROUP LTD | ACGL | G0450A105 | $48.8M | 2.17% | 508,652 | SH |
| 21 | PROGRESSIVE CORP | PGR | 743315103 | $48.4M | 2.15% | 244,335 | SH |
| 22 | CANADIAN PACIFIC KANSAS CITY | CP | 13646K108 | $44.2M | 1.97% | 563,874 | SH |
| 23 | WINMARK CORP | WINA | 974250102 | $42.0M | 1.87% | 98,186 | SH |
| 24 | EATON CORP PLC | ETN | G29183103 | $38.4M | 1.71% | 107,453 | SH |
| 25 | SHERWIN WILLIAMS CO | SHW | 824348106 | $38.3M | 1.70% | 119,587 | SH |
| 26 | VISA INC | V | 92826C839 | $35.3M | 1.57% | 116,932 | SH |
| 27 | PROSPERITY BANCSHARES INC | PB | 743606105 | $34.4M | 1.53% | 511,855 | SH |
| 28 | KINSALE CAP GROUP INC | KNSL | 49714P108 | $33.3M | 1.48% | 97,583 | SH |
| 29 | OLD REP INTL CORP | ORI | 680223104 | $30.5M | 1.36% | 764,889 | SH |
| 30 | AMERICAN EXPRESS CO | AXP | 025816109 | $28.7M | 1.28% | 94,900 | SH |
| 31 | GLACIER BANCORP INC NEW | GBCI | 37637Q105 | $23.4M | 1.04% | 523,599 | SH |
| 32 | IDEX CORP | IEX | 45167R104 | $21.0M | 0.93% | 110,728 | SH |
| 33 | INVESCO EXCHANGE TRADED FD TR | RSP | 46137V357 | $16.7M | 0.74% | 87,085 | SH |
| 34 | MEDLINE INC | MDLN | 58507V107 | $13.3M | 0.59% | 298,800 | SH |
| 35 | DIGI INTL INC | DGII | 253798102 | $12.4M | 0.55% | 257,832 | SH |
| 36 | S&P GLOBAL INC | SPGI | 78409V104 | $12.0M | 0.53% | 28,272 | SH |
| 37 | APPLE INC | AAPL | 037833100 | $11.8M | 0.53% | 46,648 | SH |
| 38 | STATE STR SPDR S&P 500 ETF TR | SPY | 78462F103 | $7.4M | 0.33% | 11,355 | SH |
| 39 | COLGATE PALMOLIVE CO | CL | 194162103 | $5.6M | 0.25% | 66,115 | SH |
| 40 | ALPHABET INC | GOOG | 02079K107 | $4.6M | 0.20% | 16,009 | SH |
| 41 | MICROSOFT CORP | MSFT | 594918104 | $3.8M | 0.17% | 10,297 | SH |
| 42 | SCHWAB STRATEGIC TR | SCHF | 808524805 | $3.6M | 0.16% | 146,692 | SH |
| 43 | ALPHABET INC | GOOGL | 02079K305 | $2.2M | 0.10% | 7,814 | SH |
| 44 | ISHARES GOLD TR | IAU | 464285204 | $1.7M | 0.08% | 19,250 | SH |
| 45 | AMAZON COM INC | AMZN | 023135106 | $1.5M | 0.06% | 6,993 | SH |
| 46 | CSW INDUSTRIALS INC | CSW | 126402106 | $1.3M | 0.06% | 5,100 | SH |
| 47 | ISHARES TR | IJR | 464287804 | $1.3M | 0.06% | 10,655 | SH |
| 48 | JOHNSON & JOHNSON | JNJ | 478160104 | $1.2M | 0.05% | 4,991 | SH |
| 49 | JPMORGAN CHASE & CO | JPM | 46625H100 | $1.0M | 0.05% | 3,536 | SH |
| 50 | VANGUARD INDEX FDS | VTI | 922908769 | $1.0M | 0.05% | 3,186 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $2.25B | 82 | 0001104659-26-062522 |
| 2025-12-31 | 2026-02-17 | $2.32B | 82 | 0001104659-26-016441 |
| 2025-09-30 | 2025-11-14 | $2.40B | 84 | 0001104659-25-112411 |