Filings (90d)
0
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Luis Diaz 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 - $17.08M in DGX purchases and sales in the last 12 months
- Catherine T. Doherty - $6.96M in DGX purchases and sales in the last 12 months
- Michael E. Prevoznik - $6.65M in DGX purchases and sales in the last 12 months
- Karthik Kuppusamy - $2.17M in DGX purchases and sales in the last 12 months
- Patrick Plewman - $2.03M in DGX purchases and sales in the last 12 months
- Mark E. Delaney - $1.86M in DGX purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Luis Diaz?
Luis Diaz is a corporate insider, tracked as Director of QUEST DIAGNOSTICS INC (DGX). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Luis Diaz last file a Form 4?
The most recent primary Form 4 on record is dated 21 May 2026, one of 2 filings going back to 2025.
