Summary
Updated Aug 31, 2026
David L. F. Gray is Chief Science Officer of Vigil Neuroscience, Inc. (VIGL). 1 SEC Form 4 filing on record, dated 5 August 2025.
Trading Pattern
InsiderAlpha's records for David L. F. Gray go back to 2025: 1 primary Form 4 filing, an average of 0.5 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 have reported open-market trades at the same companies as David L. F. Gray. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Ivana Magovcevic-Liebisch - $28K of VIGL open-market activity on record
- Haeberlein Samantha L. Budd - $21K of VIGL open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is David L. F. Gray?
David L. F. Gray is a corporate insider, tracked as Chief Science Officer of Vigil Neuroscience, Inc. (VIGL). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did David L. F. Gray last file a Form 4?
The only primary Form 4 on record is dated 5 August 2025.
Where can I see all of David L. F. Gray'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.
Learn More
Follow David L. F. Gray and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial