Corporate insider
Vroman Ken
CMEHoldLens InsiderScore
-16
Slight insider selling
Buys
1
$713K
Sells
4
$332K
Dominant
sell
Confidence
23%
Transaction history
| Date | Action | Shares | Price | Value |
|---|---|---|---|---|
| Sep 16, 2026 | SELL | 308 | $272.46 | $84K |
| Sep 15, 2026 | SELL | 274 | $275.09 | $75K |
| Sep 15, 2026 | SELL | 309 | $275.09 | $85K |
| Sep 15, 2026 | SELL | 320 | $275.09 | $88K |
| Sep 15, 2026 | BUY | 2,592 | $275.09 | $713K |
Related
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Every tracked officer at CME — aggregate InsiderScore + all Form 4s.
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Full 13F + InsiderScore unified signal for CME.
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Every tracked Form 4 across all companies, chronological.
Deep dive
Reading for your research
Optional background reading on interpreting company disclosures and investing methods. These books do not validate a signal or predict returns.
Amazon affiliate links — as an Amazon Associate, HoldLens earns from qualifying purchases and membership trials at no extra cost to you. These are books we genuinely recommend. Not investment advice; always do your own research.
Benjamin Graham
The Intelligent Investor
The foundational text. Buffett calls it 'by far the best book about investing ever written.'
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Benjamin Graham & David Dodd
Security Analysis
The deep dive behind The Intelligent Investor — how to actually read a filing and value a business.
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See the full investing reading list
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