Errol B. Desouza
CIK: 0001213895
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)3 (100.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
About DESOUZA ERROL B
DESOUZA ERROL B (SEC CIK 0001213895) files insider reports with the SEC as Director of Alector, Inc. (ALEC) and Director of Royalty Pharma plc (RPRX).
Signal8 holds 3 ownership filings by DESOUZA ERROL B, all Form 4s, filed between May 14, 2025 and Jun 17, 2026. Those filings report 3 transactions, from May 13, 2025 to Jun 17, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on DESOUZA ERROL B's filings is in SOUTH SAN FRANCISCO, CA.
Recent filings by DESOUZA ERROL B
Other insiders filing for Alector, Inc. (ALEC)
- Rosenthal Arnon, Chief Executive Officer
- Wong-Sarad Grace, Principal Accounting Officer
- Berkley Neil Lindsay, CFO & Chief Business Officer
- Yaffe Kristine, Director
- SCHELLER RICHARD H, Director
- Hammond Paula, Director