Port Capital LLC holds a focused book of 82 stocks worth $2.2B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Medline Inc-CL A and trimmed RBC Bearings Inc. Their largest long position is RBC Bearings Inc at 8% of the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1729212/holdings"
Use Arkolith to show Port Capital LLC's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
98% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | RBC Bearings Inc COM | $186.7M | 343.8K | 8.3% | ▼−7.0% Reduced · −26K sh | |
| 2 | Heico Corp New CL A | $174.4M | 826.1K | 7.8% | ▼−4.0% Reduced · −34K sh | |
| 3 | Teledyne Technologies Inc COM | $151.8M | 250.8K | 6.7% | ▲+6.1% Added · +14K sh | |
| 4 | Amphenol Corp CL A | $102.7M | 812.6K | 4.6% | ▼−12% Reduced · −116K sh | |
| 5 | Ametek Inc COM | $92.7M | 432.2K | 4.1% | ▼−4.3% Reduced · −19K sh | |
| 6 | SPX Technologies Inc COM | $92.0M | 460.3K | 4.1% | ▼−0.3% Reduced · −1K sh | |
| 7 | Oreilly Automotive Inc COM | $87.0M | 942.6K | 3.9% | ▼−3.3% Reduced · −33K sh | |
| 8 | Linde PLC SHS | $84.7M | 170.9K | 3.8% | ▼−3.3% Reduced · −6K sh | |
| 9 | Rli Corp COM | $79.1M | 1.39M | 3.5% | ▼−1.3% Reduced · −18K sh | |
| 10 | Graco Inc COM | $77.6M | 916.4K | 3.4% | ▲+5.7% Added · +49K sh | |
| 11 | Parker-Hannifin Corp COM | $75.8M | 84.6K | 3.4% | ▼−4.6% Reduced · −4K sh | |
| 12 | Watts Water Technologies Inc CL A | $74.7M | 257.4K | 3.3% | ▲+0.1% Added · +135 sh | |
| 13 | Simpson MFG Inc COM | $70.0M | 408.1K | 3.1% | ▼−0.1% Reduced · −636 sh | |
| 14 | Intercontinental Exchange Inc COM | $57.6M | 366.2K | 2.6% | ▼−4.0% Reduced · −15K sh | |
| 15 | Caci Intl Inc CL A | $55.7M | 102.5K | 2.5% | ▲+0.1% Added · +110 sh | |
| 16 | Atmus Filtration Technologies COM | $51.6M | 908.7K | 2.3% | ▲+3.6% Added · +32K sh | |
| 17 | Copart Inc COM | $49.7M | 1.50M | 2.2% | ▲+3.5% Added · +51K sh | |
| 18 | Ul Solutions Inc CLASS A COM SHS | $49.7M | 579.7K | 2.2% | ▼−0.3% Reduced · −2K sh | |
| 19 | Mastercard Incorporated CL A | $49.4M | 98.9K | 2.2% | ▼−11% Reduced · −12K sh | |
| 20 | Arch Cap Group Ltd ORD | $48.8M | 508.7K | 2.2% | ▼−11% Reduced · −64K sh | |
| 21 | Progressive Corp COM | $48.4M | 244.3K | 2.2% | ▼−8.5% Reduced · −23K sh | |
| 22 | Canadian Pacific Kansas City COM | $44.2M | 563.9K | 2.0% | ▲+6.3% Added · +33K sh | |
| 23 | Winmark Corp COM | $42.0M | 98.2K | 1.9% | ▼~0% Reduced · −2 sh | |
| 24 | Eaton Corp PLC SHS | $38.4M | 107.5K | 1.7% | ▲+24% Added · +21K sh | |
| 25 | Sherwin Williams Co COM | $38.3M | 119.6K | 1.7% | ▲+11% Added · +12K sh | |
| 26 | Visa Inc COM CL A | $35.3M | 116.9K | 1.6% | ▼−2.9% Reduced · −4K sh | |
| 27 | Prosperity Bancshares Inc COM | $34.4M | 511.9K | 1.5% | ▲+0.3% Added · +2K sh | |
| 28 | Kinsale Cap Group Inc COM | $33.3M | 97.6K | 1.5% | ▲+0.1% Added · +75 sh | |
| 29 | Old Rep Intl Corp COM | $30.5M | 764.9K | 1.4% | ▲+24% Added · +150K sh | |
| 30 | American Express Co COM | $28.7M | 94.9K | 1.3% | ▲+190% Added · +62K sh | |
| 31 | Glacier Bancorp Inc New COM | $23.4M | 523.6K | 1.0% | ▲+0.7% Added · +3K sh | |
| 32 | Idex Corp COM | $21.0M | 110.7K | 0.9% | ▲+1.4% Added · +2K sh | |
| 33 | Invesco Exchange Traded FD TR S&P500 EQL WGT | $16.7M | 87.1K | 0.7% | ▼−23% Reduced · −26K sh | |
| 34 | Medline Inc COM CL A | $13.3M | 298.8K | 0.6% | ▲New New position | |
| 35 | Digi Intl Inc COM | $12.4M | 257.8K | 0.6% | ▲New New position | |
| 36 | S&P Global Inc COM | $12.0M | 28.3K | 0.5% | ▼−64% Reduced · −49K sh | |
| 37 | Apple Inc COM | $11.8M | 46.6K | 0.5% | ▼−4.2% Reduced · −2K sh | |
| 38 | State STR SPDR S&P 500 ETF TR TR UNIT | $7.4M | 11.4K | 0.3% | ▲+1.3% Added · +150 sh | |
| 39 | Colgate Palmolive Co COM | $5.6M | 66.1K | 0.3% | ▲~0% Added · +26 sh | |
| 40 | Alphabet Inc CAP STK CL C | $4.6M | 16.0K | 0.2% | ▼−1.2% Reduced · −192 sh | |
| 41 | Microsoft Corp COM | $3.8M | 10.3K | 0.2% | ▼−8.4% Reduced · −948 sh | |
| 42 | Schwab Strategic TR INTL EQTY ETF | $3.6M | 146.7K | 0.2% | ▼−0.1% Reduced · −200 sh | |
| 43 | Alphabet Inc CAP STK CL A | $2.2M | 7.8K | 0.1% | —Held | |
| 44 | Ishares Gold TR ISHARES NEW | $1.7M | 19.3K | 0.1% | —Held | |
| 45 | Amazon Com Inc COM | $1.5M | 7.0K | 0.1% | ▼−0.8% Reduced · −57 sh | |
| 46 | CSW Industrials Inc COM | $1.3M | 5.1K | 0.1% | ▼−14% Reduced · −800 sh | |
| 47 | Ishares TR CORE S&P SCP ETF | $1.3M | 10.7K | 0.1% | ▲+6.4% Added · +642 sh | |
| 48 | Johnson & Johnson COM | $1.2M | 5.0K | 0.1% | ▼−0.8% Reduced · −43 sh | |
| 49 | JPMorgan Chase & Co COM | $1.0M | 3.5K | 0.0% | ▼−2.5% Reduced · −91 sh | |
| 50 | Vanguard Index FDS TOTAL STK MKT | $1.0M | 3.2K | 0.0% | —Held |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 82 | $2.2B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 82 | $2.3B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 84 | $2.4B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 85 | $2.4B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 87 | $2.2B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 88 | $2.2B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 87 | $2.2B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 85 | $2.0B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 87 | $2.0B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 15, 2024 | 89 | $1.8B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 80 | $1.6B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 80 | $1.7B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 15, 2023 | 71 | $1.5B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 15, 2023 | 68 | $1.4B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 69 | $1.2B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 15, 2022 | 71 | $1.3B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 71 | $1.4B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 80 | $1.6B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 15, 2021 | 81 | $2.0B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 16, 2021 | 83 | $1.9B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 17, 2021 | 83 | $1.8B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 16, 2021 | 81 | $1.5B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 16, 2020 | 76 | $1.2B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 17, 2020 | 75 | $1.0B | 13F-HR/A |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.