Summary
Updated Aug 31, 2026
Wright Lassiter III is Director of QUEST DIAGNOSTICS INC (DGX). 13 SEC Form 4 filings on record going back to 2024, most recently on 27 July 2026.
Recent Transactions
11Every recent SEC Form 4 transaction Wright Lassiter III has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Wright Lassiter III go back to 2024: 13 primary Form 4 filings, an average of 4.3 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 reported open-market trades in the last 12 months at the companies Wright Lassiter III 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.
- J. E. Davis - $14.66M of DGX open-market activity in the last 12 months
- Catherine T. Doherty - $6.96M of DGX open-market activity in the last 12 months
- Michael E. Prevoznik - $6.51M of DGX open-market activity in the last 12 months
- Peter C. Underwood - $6.41M of FTV open-market activity in the last 12 months
- Karthik Kuppusamy - $2.17M of DGX open-market activity in the last 12 months
- Patrick Plewman - $2.03M of DGX 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 Wright Lassiter III?
Wright Lassiter III is a corporate insider, tracked as Director of QUEST DIAGNOSTICS INC (DGX). InsiderAlpha holds 13 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 Wright Lassiter III submitted recently?
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Where can I see all of Wright Lassiter III'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 Wright Lassiter III 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