Summary
Updated Aug 31, 2026
Robert C. Field files SEC Form 4 reports at FIRST US BANCSHARES, INC. (FUSB). 9 SEC Form 4 filings on record going back to 2025, most recently on 1 July 2026. Most recent open-market trade: bought $14K of FUSB on 2 December 2025. Lifetime open-market purchases: $110K. Historical track record: 3/5 stars across 5 tracked purchases.
Recent Transactions
6Every recent SEC Form 4 transaction Robert C. Field 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 | 5 |
| Purchases with forward-return data | 5 |
| 30-day win rate | 80% |
| 90-day win rate | 100% |
| Avg 5-day return | +0.14% |
| Avg 30-day return | +0.65% |
| Avg 90-day return | +10.90% |
| Best 30-day return | +3.79% |
Trading Pattern
InsiderAlpha's records for Robert C. Field go back to 2025: 9 primary Form 4 filings, an average of 4.5 per year. The typical open-market purchase is $22K (5 buys totaling $110K). The largest single buy on record is $55K of FUSB 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 Robert C. Field 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.
- Robert S. Briggs - $134K of FUSB open-market activity in the last 12 months
- Staci Pierce - $54K of FUSB open-market activity in the last 12 months
- John Lee McPhearson - $25K of FUSB open-market activity in the last 12 months
- James F. House - $17K of FUSB open-market activity in the last 12 months
- Stephen Nathaniel Gordon - $14K of FUSB 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 Robert C. Field?
Robert C. Field is a corporate insider of FIRST US BANCSHARES, INC. (FUSB). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Robert C. Field submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Robert C. Field been buying or selling stock?
Recorded transactions: 5 open-market purchases ($110K) and 0 open-market sales across all tracked filings.
How accurate is Robert C. Field's historical track record?
Across 5 tracked purchases, Robert C. Field averaged +0.6% avg 30-day return with a 80% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
Where can I see all of Robert C. Field'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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