Summary
Updated Aug 30, 2026
Stephen J. Guillaume is EXECUTIVE VICE PRESIDENT of CITIZENS FINANCIAL SERVICES INC (CZFS). 6 SEC Form 4 filings on record going back to 2024, most recently on 26 June 2026. Most recent open-market trade: bought $2K of CZFS on 2 June 2026. Lifetime open-market purchases: $5K. Historical track record: 3/5 stars across 4 tracked purchases.
Recent Transactions
6Every recent SEC Form 4 transaction Stephen J. Guillaume has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★☆☆ (3/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 75% |
| 90-day win rate | 50% |
| Avg 5-day return | +1.67% |
| Avg 30-day return | -0.75% |
| Avg 90-day return | -0.54% |
| Best 30-day return | +3.70% |
Trading Pattern
InsiderAlpha's records for Stephen J. Guillaume go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $1K (5 buys totaling $5K). The largest single buy on record is $2K of CZFS in 2026. 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 Stephen J. Guillaume 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.
- John P. Painter II - $63K of CZFS open-market activity in the last 12 months
- Randall E. Black - $27K of CZFS open-market activity in the last 12 months
- Leeann Gephart - $5K of CZFS 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 Stephen J. Guillaume?
Stephen J. Guillaume is a corporate insider, tracked as EXECUTIVE VICE PRESIDENT of CITIZENS FINANCIAL SERVICES INC (CZFS). InsiderAlpha holds 6 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 Stephen J. Guillaume submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Stephen J. Guillaume been buying or selling stock?
Recorded transactions: 5 open-market purchases ($5K) and 0 open-market sales across all tracked filings.
How accurate is Stephen J. Guillaume's historical track record?
Across 4 tracked purchases, Stephen J. Guillaume averaged -0.8% avg 30-day return with a 75% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
Where can I see all of Stephen J. Guillaume'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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