Summary
Updated Aug 31, 2026
Jeffery S. Sylvester is Senior VP & COO of CHESAPEAKE UTILITIES CORP (CPK). 3 SEC Form 4 filings on record going back to 2025, most recently on 15 May 2026. Most recent open-market trade: sold $137K of CPK on 24 November 2025. Lifetime open-market sales: $137K.
Recent Transactions
3Every recent SEC Form 4 transaction Jeffery S. Sylvester has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Jeffery S. Sylvester go back to 2025: 3 primary Form 4 filings, an average of 1.5 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 Jeffery S. Sylvester 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.
- Jeffry M. Householder - $1.26M of CPK open-market activity in the last 12 months
- Beth W. Cooper - $661K of CPK open-market activity in the last 12 months
- Kevin J. Webber - $255K of CPK 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 Jeffery S. Sylvester?
Jeffery S. Sylvester is a corporate insider, tracked as Senior VP & COO of CHESAPEAKE UTILITIES CORP (CPK). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Jeffery S. Sylvester last file a Form 4?
The most recent primary Form 4 on record is dated 15 May 2026, one of 3 filings going back to 2025.
Has Jeffery S. Sylvester been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($137K) across all tracked filings.
Where can I see all of Jeffery S. Sylvester'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.
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