Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Errol B. Desouza 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.
- Terrance P. Coyne - $33.61M in RPRX purchases and sales in the last 12 months
- Christopher Hite - $27.36M in RPRX purchases and sales in the last 12 months
- George W. Lloyd - $9.57M in RPRX purchases and sales in the last 12 months
- Marshall Urist - $7.01M in RPRX purchases and sales in the last 12 months
- Arnon Rosenthal - $656K in ALEC purchases and sales in the last 12 months
- Neil Lindsay Berkley - $221K in ALEC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Errol B. Desouza?
Errol B. Desouza is a corporate insider of Alector, Inc. (ALEC). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Errol B. Desouza last file a Form 4?
The most recent primary Form 4 on record is dated 17 June 2026, one of 3 filings going back to 2025.
