# EDGAR Filing Document

**Accession Number:** 0001279936
**File Stem:** 0001085146-25-004326
**Filing Date:** 2025-7
**Character Count:** 11683
**Document Hash:** f9cc1ef0f5a0da65af925402cdb2552e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001085146-25-004326.hdr.sgml**: 20250730

**ACCESSION NUMBER**: 0001085146-25-004326

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250730

**DATE AS OF CHANGE**: 20250730

**EFFECTIVENESS DATE**: 20250730

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CANTILLON CAPITAL MANAGEMENT LLC
- **CENTRAL INDEX KEY:** 0001279936

**ORGANIZATION NAME:**
- **EIN:** 141875683

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-10729
- **FILM NUMBER:** 251165921

**BUSINESS ADDRESS:**
- **STREET 1:** 499 PARK AVENUE
- **STREET 2:** 9TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** 2126033300

**MAIL ADDRESS:**
- **STREET 1:** 499 PARK AVENUE
- **STREET 2:** 9TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022

### 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:** Cantillon Capital Management LLC<br>**Address:** 499 Park Avenue<br>9th Floor<br>New York, NY 10022

**Form 13F File Number:** 028-10729

**CRD Number (if applicable):** 000137895

**SEC File Number (if applicable):** 801-65611

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:** Kevin S. Aarons<br>**Title:** Chief Operating Officer<br>**Phone:** 212-603-3309

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

/s/Kevin S. Aarons  New York, NY  07-30-2025<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:** 1

**Form 13F Information Table Entry Total:** 75

**Form 13F Information Table Value Total:** $17297602151

      (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.]

| No.   | Name                             | Form 13F File Number   |
|:---|:---|:---|
|  | Cantillon Capital Management LLP | 028-11587              |

### 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 |
| ADOBE INC | COM | 00724F101 |  | 211590088 | 546914 | SH |  | DFND |  | 406439 | 0 | 140475 |
| ADOBE INC | COM | 00724F101 |  | 119822539 | 309715 | SH |  | DFND | 1 | 309715 | 0 | 0 |
| AGILENT TECHNOLOGIES INC | COM | 00846U101 |  | 133390833 | 1130335 | SH |  | DFND | 1 | 1130335 | 0 | 0 |
| AGILENT TECHNOLOGIES INC | COM | 00846U101 |  | 235541823 | 1995948 | SH |  | DFND |  | 1483070 | 0 | 512878 |
| ALCON AG | ORD SHS | H01301128 |  | 160799636 | 1821473 | SH |  | DFND |  | 1354345 | 0 | 467128 |
| ALCON AG | ORD SHS | H01301128 |  | 91105048 | 1032001 | SH |  | DFND | 1 | 1032001 | 0 | 0 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 475880742 | 2700339 | SH |  | DFND |  | 2006457 | 0 | 693882 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 269499904 | 1529251 | SH |  | DFND | 1 | 1529251 | 0 | 0 |
| AMERICAN TOWER CORP NEW | COM | 03027X100 |  | 146703130 | 663755 | SH |  | DFND | 1 | 663755 | 0 | 0 |
| AMERICAN TOWER CORP NEW | COM | 03027X100 |  | 259056658 | 1172096 | SH |  | DFND |  | 870918 | 0 | 301178 |
| ANALOG DEVICES INC | COM | 032654105 |  | 187283895 | 786841 | SH |  | DFND | 1 | 786841 | 0 | 0 |
| ANALOG DEVICES INC | COM | 032654105 |  | 330706416 | 1389406 | SH |  | DFND |  | 1032380 | 0 | 357026 |
| AON PLC | SHS CL A | G0403H108 |  | 284110107 | 796362 | SH |  | DFND |  | 591728 | 0 | 204634 |
| AON PLC | SHS CL A | G0403H108 |  | 160895906 | 450992 | SH |  | DFND | 1 | 450992 | 0 | 0 |
| APPLIED MATLS INC | COM | 038222105 |  | 348734071 | 1904922 | SH |  | DFND |  | 1415453 | 0 | 489469 |
| APPLIED MATLS INC | COM | 038222105 |  | 197499211 | 1078818 | SH |  | DFND | 1 | 1078818 | 0 | 0 |
| BLACKROCK INC | COM | 09290D101 |  | 345677511 | 329452 | SH |  | DFND |  | 244797 | 0 | 84655 |
| BLACKROCK INC | COM | 09290D101 |  | 195763819 | 186575 | SH |  | DFND | 1 | 186575 | 0 | 0 |
| BROADCOM INC | COM | 11135F101 |  | 964653714 | 3499560 | SH |  | DFND |  | 2600603 | 0 | 898957 |
| BROADCOM INC | COM | 11135F101 |  | 546123293 | 1981220 | SH |  | DFND | 1 | 1981220 | 0 | 0 |
| CANADIAN PACIFIC KANSAS CITY | COM | 13646K108 |  | 120944538 | 1525729 | SH |  | DFND | 1 | 1525729 | 0 | 0 |
| CANADIAN PACIFIC KANSAS CITY | COM | 13646K108 |  | 213567807 | 2694182 | SH |  | DFND |  | 2001876 | 0 | 692306 |
| CBRE GROUP INC | CL A | 12504L109 |  | 226752833 | 1618276 | SH |  | DFND | 1 | 1618276 | 0 | 0 |
| CBRE GROUP INC | CL A | 12504L109 |  | 400399486 | 2857547 | SH |  | DFND |  | 2123279 | 0 | 734268 |
| CME GROUP INC | COM | 12572Q105 |  | 277737037 | 1007681 | SH |  | DFND |  | 748751 | 0 | 258930 |
| CME GROUP INC | COM | 12572Q105 |  | 157287790 | 570669 | SH |  | DFND | 1 | 570669 | 0 | 0 |
| ECOLAB INC | COM | 278865100 |  | 188378976 | 699150 | SH |  | DFND |  | 519555 | 0 | 179595 |
| ECOLAB INC | COM | 278865100 |  | 106698240 | 396000 | SH |  | DFND | 1 | 396000 | 0 | 0 |
| ENTEGRIS INC | COM | 29362U104 |  | 126939874 | 1573960 | SH |  | DFND |  | 1169958 | 0 | 404002 |
| ENTEGRIS INC | COM | 29362U104 |  | 71924718 | 891813 | SH |  | DFND | 1 | 891813 | 0 | 0 |
| EQUIFAX INC | COM | 294429105 |  | 162219854 | 625438 | SH |  | DFND | 1 | 625438 | 0 | 0 |
| EQUIFAX INC | COM | 294429105 |  | 286430850 | 1104333 | SH |  | DFND |  | 820594 | 0 | 283739 |
| FASTENAL CO | COM | 311900104 |  | 249323340 | 5936270 | SH |  | DFND |  | 4410911 | 0 | 1525359 |
| FASTENAL CO | COM | 311900104 |  | 141194046 | 3361763 | SH |  | DFND | 1 | 3361763 | 0 | 0 |
| FERGUSON ENTERPRISES INC | COMMON STOCK NEW | 31488V107 |  | 276866077 | 1271486 | SH |  | DFND |  | 944757 | 0 | 326729 |
| FERGUSON ENTERPRISES INC | COMMON STOCK NEW | 31488V107 |  | 156796331 | 720075 | SH |  | DFND | 1 | 720075 | 0 | 0 |
| FLUTTER ENTMT PLC | SHS | G3643J108 |  | 234730122 | 821424 | SH |  | DFND | 1 | 821424 | 0 | 0 |
| FLUTTER ENTMT PLC | SHS | G3643J108 |  | 414475734 | 1450433 | SH |  | DFND |  | 1077732 | 0 | 372701 |
| ICON PLC | SHS | G4705A100 |  | 67662904 | 465197 | SH |  | DFND |  | 465197 | 0 | 0 |
| INTERACTIVE BROKERS GROUP IN | COM CL A | 45841N107 |  | 256510455 | 4629317 | SH |  | DFND | 1 | 4629317 | 0 | 0 |
| INTERACTIVE BROKERS GROUP IN | COM CL A | 45841N107 |  | 452938739 | 8174314 | SH |  | DFND |  | 6073816 | 0 | 2100498 |
| INTERCONTINENTAL EXCHANGE IN | COM | 45866F104 |  | 392331147 | 2138394 | SH |  | DFND |  | 1588917 | 0 | 549477 |
| INTERCONTINENTAL EXCHANGE IN | COM | 45866F104 |  | 222189325 | 1211039 | SH |  | DFND | 1 | 1211039 | 0 | 0 |
| IQVIA HLDGS INC | COM | 46266C105 |  | 127551770 | 809390 | SH |  | DFND |  | 489853 | 0 | 319537 |
| IQVIA HLDGS INC | COM | 46266C105 |  | 110988746 | 704288 | SH |  | DFND | 1 | 704288 | 0 | 0 |
| LIVE NATION ENTERTAINMENT IN | COM | 538034109 |  | 271066681 | 1791821 | SH |  | DFND |  | 1331399 | 0 | 460422 |
| LIVE NATION ENTERTAINMENT IN | COM | 538034109 |  | 153513498 | 1014764 | SH |  | DFND | 1 | 1014764 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 402142555 | 808473 | SH |  | DFND |  | 600727 | 0 | 207746 |
| MICROSOFT CORP | COM | 594918104 |  | 227739666 | 457851 | SH |  | DFND | 1 | 457851 | 0 | 0 |
| MOODYS CORP | COM | 615369105 |  | 81047414 | 161581 | SH |  | DFND | 1 | 161581 | 0 | 0 |
| MOODYS CORP | COM | 615369105 |  | 143107640 | 285308 | SH |  | DFND |  | 211996 | 0 | 73312 |
| ORACLE CORP | COM | 68389X105 |  | 120527221 | 551284 | SH |  | DFND |  | 409711 | 0 | 141573 |
| ORACLE CORP | COM | 68389X105 |  | 68275744 | 312289 | SH |  | DFND | 1 | 312289 | 0 | 0 |
| S GLOBAL INC | COM | 78409V104 |  | 335845765 | 636928 | SH |  | DFND | 1 | 636928 | 0 | 0 |
| S GLOBAL INC | COM | 78409V104 |  | 593030408 | 1124676 | SH |  | DFND |  | 835678 | 0 | 288998 |
| SS TECHNOLOGIES HLDGS INC | COM | 78467J100 |  | 225878234 | 2727998 | SH |  | DFND |  | 2027022 | 0 | 700976 |
| SS TECHNOLOGIES HLDGS INC | COM | 78467J100 |  | 127921777 | 1544949 | SH |  | DFND | 1 | 1544949 | 0 | 0 |
| TAIWAN SEMICONDUCTOR MFG LTD | SPONSORED ADS | 874039100 |  | 410511087 | 1812491 | SH |  | DFND |  | 1346750 | 0 | 465741 |
| TAIWAN SEMICONDUCTOR MFG LTD | SPONSORED ADS | 874039100 |  | 232476584 | 1026432 | SH |  | DFND | 1 | 1026432 | 0 | 0 |
| TENCENT MUSIC ENTMT GROUP | SPON ADS | 88034P109 |  | 149548544 | 7673091 | SH |  | DFND | 1 | 7673091 | 0 | 0 |
| TENCENT MUSIC ENTMT GROUP | SPON ADS | 88034P109 |  | 214680479 | 11014904 | SH |  | DFND |  | 9538440 | 0 | 1476464 |
| THERMO FISHER SCIENTIFIC INC | COM | 883556102 |  | 226824461 | 559425 | SH |  | DFND |  | 415702 | 0 | 143723 |
| THERMO FISHER SCIENTIFIC INC | COM | 883556102 |  | 128465946 | 316840 | SH |  | DFND | 1 | 316840 | 0 | 0 |
| TRADEWEB MKTS INC | CL A | 892672106 |  | 105587047 | 721223 | SH |  | DFND |  | 536147 | 0 | 185076 |
| TRADEWEB MKTS INC | CL A | 892672106 |  | 59831630 | 408686 | SH |  | DFND | 1 | 408686 | 0 | 0 |
| TRIP COM GROUP LTD | ADS | 89677Q107 |  | 141640112 | 2415418 | SH |  | DFND |  | 2091782 | 0 | 323636 |
| TRIP COM GROUP LTD | ADS | 89677Q107 |  | 98622687 | 1681833 | SH |  | DFND | 1 | 1681833 | 0 | 0 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 307255560 | 3293200 | SH |  | DFND |  | 2446976 | 0 | 846224 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 174006926 | 1865026 | SH |  | DFND | 1 | 1865026 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 443417329 | 1248887 | SH |  | DFND |  | 927975 | 0 | 320912 |
| VISA INC | COM CL A | 92826C839 |  | 251118344 | 707276 | SH |  | DFND | 1 | 707276 | 0 | 0 |
| YUM BRANDS INC | COM | 988498101 |  | 195211887 | 1317397 | SH |  | DFND |  | 979012 | 0 | 338385 |
| YUM BRANDS INC | COM | 988498101 |  | 110509977 | 745782 | SH |  | DFND | 1 | 745782 | 0 | 0 |
| ZOETIS INC | CL A | 98978V103 |  | 68736522 | 440760 | SH |  | DFND | 1 | 440760 | 0 | 0 |
| ZOETIS INC | CL A | 98978V103 |  | 121381343 | 778335 | SH |  | DFND |  | 578334 | 0 | 200001 |

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