Summary
Updated Aug 31, 2026
Spencer S. Stiles is Director of CHART INDUSTRIES INC (GTLS). 13 SEC Form 4 filings on record going back to 2024, most recently on 16 July 2026. Most recent open-market trade: sold $201K of SYK on 18 November 2024. Lifetime open-market sales: $201K.
Recent Transactions
15Every recent SEC Form 4 transaction Spencer S. Stiles has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Spencer S. Stiles go back to 2024: 13 primary Form 4 filings, an average of 4.3 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 Spencer S. Stiles 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.
- Ronda E. Stryker - $580.89M of SYK open-market activity in the last 12 months
- M. Kathryn Fink - $2.47M of SYK open-market activity in the last 12 months
- Robert S. Fletcher - $1.39M of SYK open-market activity in the last 12 months
- William E. Berry Jr. - $714K of SYK open-market activity in the last 12 months
- Debra King - $278K of SYK open-market activity in the last 12 months
- James Andrew Pierce - $175K of SYK 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 Spencer S. Stiles?
Spencer S. Stiles is a corporate insider, tracked as Director of CHART INDUSTRIES INC (GTLS). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Spencer S. Stiles submitted recently?
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Spencer S. Stiles been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($201K) across all tracked filings.
Where can I see all of Spencer S. Stiles'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 Spencer S. Stiles 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