Summary
Updated Aug 31, 2026
Keith Valentine is Director of REGENTIS BIOMATERIALS LTD. (RGNT). 4 SEC Form 4 filings on record going back to 2025, most recently on 13 July 2026. Most recent open-market trade: bought $245K of ATEC on 11 May 2026. Lifetime open-market purchases: $996K. Historical track record: 4/5 stars across 3 tracked purchases.
Recent Transactions
5Every recent SEC Form 4 transaction Keith Valentine 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 | ★★★★☆ (4/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 100% |
| 90-day win rate | 100% |
| Avg 5-day return | +5.34% |
| Avg 30-day return | +7.85% |
| Avg 90-day return | +27.24% |
| Best 30-day return | +16.31% |
Trading Pattern
InsiderAlpha's records for Keith Valentine go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $332K (3 buys totaling $996K). The largest single buy on record is $421K of ATEC 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 Keith Valentine 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.
- Jennifer N. Pritzker - $15.65M of ATEC open-market activity in the last 12 months
- Squadron Capital Holdings LLC - $15.65M of ATEC open-market activity in the last 12 months
- Squadron Capital LLC - $10.36M of ATEC open-market activity in the last 12 months
- David R. Pelizzon - $10.36M of ATEC open-market activity in the last 12 months
- Patrick Miles - $10.22M of ATEC open-market activity in the last 12 months
- David Sponsel - $6.13M of ATEC 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 Keith Valentine?
Keith Valentine is a corporate insider, tracked as Director of REGENTIS BIOMATERIALS LTD. (RGNT). InsiderAlpha holds 4 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 Keith Valentine submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Keith Valentine been buying or selling stock?
Recorded transactions: 3 open-market purchases ($996K) and 0 open-market sales across all tracked filings.
How accurate is Keith Valentine's historical track record?
Across 3 tracked purchases, Keith Valentine averaged +7.9% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
Where can I see all of Keith Valentine'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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