# CME Group (CME): value investors who own it | moatshark

7 value investors held CME Group in their Q3 2026 13F, led by Baupost Group, Cantillon Capital Management, Troy Asset Management, Horizon Kinetics, Mairs…

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Baupost Group | 2.5% | $137m | New | 1 |
| Cantillon Capital Management | 2.1% | $14.1m | Trimmed -95% | 47 |
| Troy Asset Management | 1.7% | $61.5m | Added +22% | 25 |
| Horizon Kinetics | 0.7% | $62.7m | Added +5.0% | 30 |
| Mairs & Power | 0.4% | $43.2m | New | 1 |
| Markel Group | 0.1% | $11.0m | Unchanged | 7 |
| Lindsell Train | 0.1% | $1.5m | Unchanged | 25 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-09-25 | SHEPARD WILLIAM R | Director | Bought | 292.55 | $79k |
| 2026-09-14 | Cook Elizabeth A | Director | Sold | 500 | $140k |
| 2026-09-10 | DUFFY TERRENCE A | Chairman and CEO | Sold | 14372 | $3.9m |
| 2026-09-10 | DUFFY TERRENCE A | Chairman and CEO | Sold | 628 | $173k |

## Fund holders

| Fund | Manager | Weight | Value | As at |
| --- | --- | --- | --- | --- |
| Horizon Kinetics Inflation Beneficiaries ETF | Horizon Kinetics | 2.2% | $33.0m | 2026-06-30 |
| Mairs & Power Growth Fund | Mairs & Power | 0.7% | $38.6m | 2026-06-30 |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/cme). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.