10 insiders reported 20 Form 4 transactions for COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBSP3) over the past 18 months (most recent 2026-05-15). Recent activity: Szlak Daniel (Chief Financial Officer) Buy 10,181 shares, Pierini Longo Debora (Operations & Maint. Officer) Sell 2,267 shares, Tavares de Sousa Roberval (Engineering Officer) Buy 8,243 shares, Godinho Domingues Luciane (Reg. & Energy Proc. Officer) Buy 10,317 shares, Leone Piani Carlos Augusto (CEO) Buy 50,295 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-15 | Szlak Daniel | Chief Financial Officer | Buy | 10,181 | $0 |
| 2026-05-15 | Pierini Longo Debora | Operations & Maint. Officer | Sell | 2,267 | $15,166 |
| 2026-05-15 | Tavares de Sousa Roberval | Engineering Officer | Buy | 8,243 | $0 |
| 2026-05-15 | Godinho Domingues Luciane | Reg. & Energy Proc. Officer | Buy | 10,317 | $0 |
| 2026-05-15 | Leone Piani Carlos Augusto | CEO | Buy | 50,295 | $0 |
| 2026-05-15 | Maciel Maia Denis | Customer & Technology Officer | Buy | 10,181 | $0 |
| 2026-05-15 | Bressane Junior Josue | Chief People Officer | Buy | 7,371 | $0 |
| 2026-05-15 | Do Valle Fehlberg Gustavo | Corporate Services Officer | Buy | 7,371 | $0 |
| 2026-05-15 | Lima Peralta Maria Alicia | Chief Legal Officer | Buy | 6,039 | $0 |
| 2026-05-15 | Pierini Longo Debora | Operations & Maint. Officer | Buy | 8,243 | $0 |
| 2026-05-15 | Szlak Daniel | Chief Financial Officer | Sell | 2,800 | $18,732 |
| 2026-05-15 | Costa Strauch Rafael | New Bus. & Projects Officer | Sell | 2,179 | $14,578 |
| 2026-05-15 | Tavares de Sousa Roberval | Engineering Officer | Sell | 2,267 | $15,166 |
| 2026-05-15 | Godinho Domingues Luciane | Reg. & Energy Proc. Officer | Sell | 2,837 | $18,980 |
| 2026-05-15 | Leone Piani Carlos Augusto | CEO | Sell | 13,831 | $92,529 |
| 2026-05-15 | Maciel Maia Denis | Customer & Technology Officer | Sell | 2,800 | $18,732 |
| 2026-05-15 | Bressane Junior Josue | Chief People Officer | Sell | 2,027 | $13,561 |
| 2026-05-15 | Do Valle Fehlberg Gustavo | Corporate Services Officer | Sell | 2,027 | $13,561 |
| 2026-05-15 | Lima Peralta Maria Alicia | Chief Legal Officer | Sell | 1,661 | $11,112 |
| 2026-05-15 | Costa Strauch Rafael | New Bus. & Projects Officer | Buy | 7,922 | $0 |
Source: SEC Form 4 filings · as of 2026-05-15
