Summary
Updated Aug 30, 2026
Leo F. Lambert files SEC Form 4 reports at CITIZENS & NORTHERN CORP (CZNC). 7 SEC Form 4 filings on record going back to 2024, most recently on 27 February 2026. Most recent open-market trade: bought $3K of CZNC on 6 May 2025. Lifetime open-market purchases: $12K. Historical track record: 1/5 stars across 3 tracked purchases.
Recent Transactions
9Every recent SEC Form 4 transaction Leo F. Lambert 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 | ★☆☆☆☆ (1/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 0% |
| 90-day win rate | 0% |
| Avg 5-day return | +2.71% |
| Avg 30-day return | -3.93% |
| Avg 90-day return | -1.59% |
| Best 30-day return | -3.93% |
Trading Pattern
InsiderAlpha's records for Leo F. Lambert go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. The typical open-market purchase is $4K (3 buys totaling $12K). The largest single buy on record is $5K of CZNC in 2025. 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 Leo F. Lambert 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.
- Stephen M. Dorwart - $58K of CZNC open-market activity in the last 12 months
- Frank G. Pellegrino - $47K of CZNC open-market activity in the last 12 months
- Christian C. Trate - $33K of CZNC open-market activity in the last 12 months
- Terry L. Lehman - $21K of CZNC open-market activity in the last 12 months
- Katherine W. Shattuck - $4K of CZNC 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 Leo F. Lambert?
Leo F. Lambert is a corporate insider of CITIZENS & NORTHERN CORP (CZNC). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Leo F. Lambert last file a Form 4?
The most recent primary Form 4 on record is dated 27 February 2026, one of 7 filings going back to 2024.
Has Leo F. Lambert been buying or selling stock?
Recorded transactions: 3 open-market purchases ($12K) and 0 open-market sales across all tracked filings.
How accurate is Leo F. Lambert's historical track record?
Across 3 tracked purchases, Leo F. Lambert averaged -3.9% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of Leo F. Lambert'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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