Summary
Updated Aug 31, 2026
Piani Carlos Augusto Leone is CEO of COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS). 1 SEC Form 4 filing on record, dated 15 May 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Piani Carlos Augusto Leone has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Piani Carlos Augusto Leone go back to 2026: 1 primary Form 4 filing, an average of 1.0 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 Piani Carlos Augusto Leone 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.
- Daniel Szlak - $250K of SBS open-market activity in the last 12 months
- de Sousa Roberval Tavares - $204K of SBS open-market activity in the last 12 months
- de Sousa Samanta I.S. Tavares - $196K of SBS 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 Piani Carlos Augusto Leone?
Piani Carlos Augusto Leone is a corporate insider, tracked as CEO of COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Piani Carlos Augusto Leone last file a Form 4?
The only primary Form 4 on record is dated 15 May 2026.
Where can I see all of Piani Carlos Augusto Leone'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 Piani Carlos Augusto Leone 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