Summary
Updated Aug 31, 2026
Larry G. Gerdes is Director of CME GROUP INC. (CME). 1 SEC Form 4 filing on record, dated 24 April 2025. Most recent open-market trade: sold $532K of CME on 24 April 2025. Lifetime open-market sales: $1.06M.
Recent Transactions
3Every recent SEC Form 4 transaction Larry G. Gerdes has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Larry G. Gerdes go back to 2025: 1 primary Form 4 filing, an average of 0.5 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Larry G. Gerdes files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Terrence A. Duffy - $10.45M of CME open-market activity in the last 12 months
- Jonathan L. Marcus - $2.33M of CME open-market activity in the last 12 months
- Derek Sammann - $1.98M of CME open-market activity in the last 12 months
- Hilda Harris Piell - $1.75M of CME open-market activity in the last 12 months
- Ken Vroman - $1.59M of CME open-market activity in the last 12 months
- Bryan T. Durkin - $1.30M of CME open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Larry G. Gerdes?
Larry G. Gerdes is a corporate insider, tracked as Director of CME GROUP INC. (CME). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Larry G. Gerdes last file a Form 4?
The only primary Form 4 on record is dated 24 April 2025.
Has Larry G. Gerdes been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($1.06M) across all tracked filings.
Where can I see all of Larry G. Gerdes's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Follow Larry G. Gerdes and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial