Ken Vroman is Chief Transformation Officer at CME GROUP INC. (CME). They have made 6 open-market trades across 1 company since 2013, most recently 2026-09-16.
CIK 0001429863
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CME | 20,232 | $6.2M |
Shares reported on the most recent Form 4, priced at the 2026-09-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CME | SELL | 2026-03-12 | 2026-03-12 | $309.00 | $1.6M | -3.0% | -3.7% | -15.4% |
| CME | SELL | 2025-02-13 | 2025-02-14 | $250.00 | $1.3M | +1.6% | +7.2% | +11.5% |
| CME | SELL | 2022-09-12 | 2022-09-13 | $201.41 | $302K | -7.5% | -10.9% | -7.6% |
| CME | SELL | 2021-11-09 | 2021-11-12 | $220.00 | $98K | +2.0% | +1.5% | +8.7% |
| CME | SELL | 2020-11-02 | 2020-11-03 | $152.63 | $1.4M | +7.5% | +17.7% | +21.4% |
| CME | SELL | 2013-03-12 | 2013-03-13 | $62.69 | $94K | -5.2% | -0.1% | -0.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.