# EDGAR Filing Document

**Accession Number:** 0001729212
**File Stem:** 0001104659-25-078671
**Filing Date:** 2025-8
**Character Count:** 12002
**Document Hash:** e3d791be726d48285a6b9833e515bae8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-078671.hdr.sgml**: 20250814

**ACCESSION NUMBER**: 0001104659-25-078671

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250814

**DATE AS OF CHANGE**: 20250814

**EFFECTIVENESS DATE**: 20250814

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Port Capital LLC
- **CENTRAL INDEX KEY:** 0001729212

**ORGANIZATION NAME:**
- **EIN:** 320475866
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-18218
- **FILM NUMBER:** 251220001

**BUSINESS ADDRESS:**
- **STREET 1:** 180 NORTH STETSON AVENUE, SUITE 5700
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60601
- **BUSINESS PHONE:** 312.788.2400

**MAIL ADDRESS:**
- **STREET 1:** 180 NORTH STETSON AVENUE, SUITE 5700
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60601

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 06-30-2025

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Port Capital LLC<br>**Address:** 180 North Stetson Avenue Suite 5700<br>Chicago, IL 60601

**Form 13F File Number:** 028-18218

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Tracy Rothmeyer<br>**Title:** Chief Operating Officer and Chief Compliance Officer<br>**Phone:** 312-788-2400

**Signature, Place, and Date of Signing:**

/s/ Tracy Rothmeyer  Chicago, IL  08-14-2025<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 85

**Form 13F Information Table Value Total:** $2351643000

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ABBOTT LABS | COM | 002824100 |  | 802000 | 5900 | SH |  | SOLE |  | 5900 | 0 | 0 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 2959000 | 16681 | SH |  | SOLE |  | 16681 | 0 | 0 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 1474000 | 8364 | SH |  | SOLE |  | 8364 | 0 | 0 |
| AMAZON COM INC | COM | 023135106 |  | 1613000 | 7352 | SH |  | SOLE |  | 7352 | 0 | 0 |
| AMERICAN EXPRESS CO | COM | 025816109 |  | 272000 | 853 | SH |  | SOLE |  | 853 | 0 | 0 |
| AMETEK INC | COM | 031100100 |  | 86187000 | 476276 | SH |  | SOLE |  | 476276 | 0 | 0 |
| AMPHENOL CORP NEW | CL A | 032095101 |  | 115712000 | 1171767 | SH |  | SOLE |  | 1171767 | 0 | 0 |
| AON PLC | SHS CL A | G0403H108 |  | 214000 | 600 | SH |  | SOLE |  | 600 | 0 | 0 |
| APPLE INC | COM | 037833100 |  | 10115000 | 49299 | SH |  | SOLE |  | 49299 | 0 | 0 |
| ARCH CAP GROUP LTD | ORD | G0450A105 |  | 59332000 | 651646 | SH |  | SOLE |  | 651646 | 0 | 0 |
| ARES CAPITAL CORP | COM | 04010L103 |  | 944000 | 43000 | SH |  | SOLE |  | 43000 | 0 | 0 |
| AUTOMATIC DATA PROCESSING INC | COM | 053015103 |  | 38126000 | 123626 | SH |  | SOLE |  | 123626 | 0 | 0 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 743000 | 1529 | SH |  | SOLE |  | 1529 | 0 | 0 |
| BLACKSTONE INC | COM | 09260D107 |  | 363000 | 2430 | SH |  | SOLE |  | 2430 | 0 | 0 |
| BROWN  BROWN INC | COM | 115236101 |  | 37937000 | 342180 | SH |  | SOLE |  | 342180 | 0 | 0 |
| CACI INTL INC | CL A | 127190304 |  | 55982000 | 117436 | SH |  | SOLE |  | 117436 | 0 | 0 |
| CANADIAN PACIFIC KANSAS CITY | COM | 13646K108 |  | 41770000 | 526783 | SH |  | SOLE |  | 526783 | 0 | 0 |
| COLGATE PALMOLIVE CO | COM | 194162103 |  | 6179000 | 67972 | SH |  | SOLE |  | 67972 | 0 | 0 |
| CONOCOPHILLIPS | COM | 20825C104 |  | 382000 | 4252 | SH |  | SOLE |  | 4252 | 0 | 0 |
| COPART INC | COM | 217204106 |  | 69327000 | 1412819 | SH |  | SOLE |  | 1412819 | 0 | 0 |
| COSTCO WHSL CORP NEW | COM | 22160K105 |  | 384000 | 388 | SH |  | SOLE |  | 388 | 0 | 0 |
| CSW INDUSTRIALS INC | COM | 126402106 |  | 1692000 | 5900 | SH |  | SOLE |  | 5900 | 0 | 0 |
| FISERV INC | COM | 337738108 |  | 57962000 | 336185 | SH |  | SOLE |  | 336185 | 0 | 0 |
| GLACIER BANCORP INC NEW | COM | 37637Q105 |  | 29852000 | 692948 | SH |  | SOLE |  | 692948 | 0 | 0 |
| GOLUB CAP BDC INC | COM | 38173M102 |  | 322000 | 22000 | SH |  | SOLE |  | 22000 | 0 | 0 |
| GRACO INC | COM | 384109104 |  | 73284000 | 852433 | SH |  | SOLE |  | 852433 | 0 | 0 |
| HEICO CORP NEW | CL A | 422806208 |  | 220193000 | 850987 | SH |  | SOLE |  | 850987 | 0 | 0 |
| HONEYWELL INTL INC | COM | 438516106 |  | 266000 | 1141 | SH |  | SOLE |  | 1141 | 0 | 0 |
| IDEX CORP | COM | 45167R104 |  | 31855000 | 181435 | SH |  | SOLE |  | 181435 | 0 | 0 |
| ILLINOIS TOOL WKS INC | COM | 452308109 |  | 390000 | 1578 | SH |  | SOLE |  | 1578 | 0 | 0 |
| INTERCONTINENTAL EXCHANGE INC | COM | 45866F104 |  | 69620000 | 379465 | SH |  | SOLE |  | 379465 | 0 | 0 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 |  | 1014000 | 3441 | SH |  | SOLE |  | 3441 | 0 | 0 |
| ISHARES GOLD TR | ISHARES NEW | 464285204 |  | 1300000 | 20850 | SH |  | SOLE |  | 20850 | 0 | 0 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 776000 | 5079 | SH |  | SOLE |  | 5079 | 0 | 0 |
| JPMORGAN CHASE  CO. | COM | 46625H100 |  | 1089000 | 3756 | SH |  | SOLE |  | 3756 | 0 | 0 |
| KENVUE INC | COM | 49177J102 |  | 303000 | 14457 | SH |  | SOLE |  | 14457 | 0 | 0 |
| KINSALE CAP GROUP INC | COM | 49714P108 |  | 52560000 | 108618 | SH |  | SOLE |  | 108618 | 0 | 0 |
| LAUDER ESTEE COS INC | CL A | 518439104 |  | 451000 | 5578 | SH |  | SOLE |  | 5578 | 0 | 0 |
| LINDE PLC | SHS | G54950103 |  | 82514000 | 175869 | SH |  | SOLE |  | 175869 | 0 | 0 |
| MARRIOTT INTL INC NEW | CL A | 571903202 |  | 794000 | 2907 | SH |  | SOLE |  | 2907 | 0 | 0 |
| MASTERCARD INCORPORATED | CL A | 57636Q104 |  | 62031000 | 110388 | SH |  | SOLE |  | 110388 | 0 | 0 |
| MCDONALDS CORP | COM | 580135101 |  | 588000 | 2014 | SH |  | SOLE |  | 2014 | 0 | 0 |
| MERCK  CO INC | COM | 58933Y105 |  | 613000 | 7745 | SH |  | SOLE |  | 7745 | 0 | 0 |
| META PLATFORMS INC | CL A | 30303M102 |  | 338000 | 458 | SH |  | SOLE |  | 458 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 6960000 | 13992 | SH |  | SOLE |  | 13992 | 0 | 0 |
| NORTHERN TR CORP | COM | 665859104 |  | 746000 | 5880 | SH |  | SOLE |  | 5880 | 0 | 0 |
| ONTO INNOVATION INC | COM | 683344105 |  | 15801000 | 156556 | SH |  | SOLE |  | 156556 | 0 | 0 |
| OREILLY AUTOMOTIVE INC | COM | 67103H107 |  | 87448000 | 970240 | SH |  | SOLE |  | 970240 | 0 | 0 |
| PARKER-HANNIFIN CORP | COM | 701094104 |  | 57951000 | 82968 | SH |  | SOLE |  | 82968 | 0 | 0 |
| PETROLEO BRASILEIRO SA PETROBR | SP ADR NON VTG | 71654V101 |  | 721000 | 62467 | SH |  | SOLE |  | 62467 | 0 | 0 |
| PFIZER INC | COM | 717081103 |  | 215000 | 8877 | SH |  | SOLE |  | 8877 | 0 | 0 |
| PHILLIPS 66 | COM | 718546104 |  | 300000 | 2518 | SH |  | SOLE |  | 2518 | 0 | 0 |
| PROGRESSIVE CORP | COM | 743315103 |  | 92392000 | 346219 | SH |  | SOLE |  | 346219 | 0 | 0 |
| PROSPERITY BANCSHARES INC | COM | 743606105 |  | 38506000 | 548208 | SH |  | SOLE |  | 548208 | 0 | 0 |
| RBC BEARINGS INC | COM | 75524B104 |  | 140278000 | 364548 | SH |  | SOLE |  | 364548 | 0 | 0 |
| RLI CORP | COM | 749607107 |  | 111507000 | 1543986 | SH |  | SOLE |  | 1543986 | 0 | 0 |
| ROPER TECHNOLOGIES INC | COM | 776696106 |  | 42337000 | 74690 | SH |  | SOLE |  | 74690 | 0 | 0 |
| RYAN SPECIALTY HOLDINGS INC | CL A | 78351F107 |  | 680000 | 10000 | SH |  | SOLE |  | 10000 | 0 | 0 |
| SCHWAB STRATEGIC TR | INTL SCEQT ETF | 808524888 |  | 256000 | 6000 | SH |  | SOLE |  | 6000 | 0 | 0 |
| SELECTIVE INS GROUP INC | COM | 816300107 |  | 13533000 | 156178 | SH |  | SOLE |  | 156178 | 0 | 0 |
| SHERWIN WILLIAMS CO | COM | 824348106 |  | 36609000 | 106619 | SH |  | SOLE |  | 106619 | 0 | 0 |
| SIMPSON MFG INC | COM | 829073105 |  | 62494000 | 402385 | SH |  | SOLE |  | 402385 | 0 | 0 |
| SOLID POWER INC | CLASS A COM | 83422N105 |  | 43000 | 19750 | SH |  | SOLE |  | 19750 | 0 | 0 |
| SPX TECHNOLOGIES INC | COM | 78473E103 |  | 76397000 | 455611 | SH |  | SOLE |  | 455611 | 0 | 0 |
| TE CONNECTIVITY PLC | ORD SHS | G87052109 |  | 671000 | 3979 | SH |  | SOLE |  | 3979 | 0 | 0 |
| TELEDYNE TECHNOLOGIES INC | COM | 879360105 |  | 98382000 | 192037 | SH |  | SOLE |  | 192037 | 0 | 0 |
| TEXAS INSTRS INC | COM | 882508104 |  | 1087000 | 5234 | SH |  | SOLE |  | 5234 | 0 | 0 |
| THERMO FISHER SCIENTIFIC INC | COM | 883556102 |  | 467000 | 1151 | SH |  | SOLE |  | 1151 | 0 | 0 |
| TRADEWEB MKTS INC | CL A | 892672106 |  | 256000 | 1750 | SH |  | SOLE |  | 1750 | 0 | 0 |
| UL SOLUTIONS INC | CLASS A COM SHS | 903731107 |  | 45099000 | 618975 | SH |  | SOLE |  | 618975 | 0 | 0 |
| UNILEVER PLC | SPON ADR NEW | 904767704 |  | 398000 | 6500 | SH |  | SOLE |  | 6500 | 0 | 0 |
| UNITEDHEALTH GROUP INC | COM | 91324P102 |  | 26558000 | 85129 | SH |  | SOLE |  | 85129 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 39903000 | 112388 | SH |  | SOLE |  | 112388 | 0 | 0 |
| WATTS WATER TECHNOLOGIES INC | CL A | 942749102 |  | 61184000 | 248828 | SH |  | SOLE |  | 248828 | 0 | 0 |
| WINMARK CORP | COM | 974250102 |  | 40843000 | 108161 | SH |  | SOLE |  | 108161 | 0 | 0 |
| ENTERPRISE PRODS PARTNERS L P | COM | 293792107 |  | 473000 | 15250 | SH |  | SOLE |  | 15250 | 0 | 0 |
| INVESCO EXCHANGE TRADED FD TR | S EQL WGT | 46137V357 |  | 15984000 | 87951 | SH |  | SOLE |  | 87951 | 0 | 0 |
| ISHARES TR | MSCI ACWI ETF | 464288257 |  | 257000 | 2000 | SH |  | SOLE |  | 2000 | 0 | 0 |
| ISHARES TR | CORE S SCP ETF | 464287804 |  | 1085000 | 9929 | SH |  | SOLE |  | 9929 | 0 | 0 |
| ISHARES TR | RUS MDCP VAL ETF | 464287473 |  | 607000 | 4596 | SH |  | SOLE |  | 4596 | 0 | 0 |
| SCHWAB STRATEGIC TR | INTL EQTY ETF | 808524805 |  | 3161000 | 143017 | SH |  | SOLE |  | 143017 | 0 | 0 |
| SPDR INDEX SHS FDS | PORTFOLIO DEVLPD | 78463X889 |  | 729000 | 18000 | SH |  | SOLE |  | 18000 | 0 | 0 |
| SPDR S 500 ETF TR | TR UNIT | 78462F103 |  | 7055000 | 11419 | SH |  | SOLE |  | 11419 | 0 | 0 |
| VANGUARD INDEX FDS | TOTAL STK MKT | 922908769 |  | 1091000 | 3590 | SH |  | SOLE |  | 3590 | 0 | 0 |
| VANGUARD INTL EQUITY INDEX FDS | TT WRLD ST ETF | 922042742 |  | 555000 | 4316 | SH |  | SOLE |  | 4316 | 0 | 0 |

---