Summary
Updated Aug 31, 2026
de Sousa Roberval Tavares is Engineering Officer of COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS). 3 SEC Form 4 filings on record, most recently on 17 June 2026. Most recent open-market trade: sold $34K of SBS on 17 June 2026. Lifetime open-market sales: $204K.
Recent Transactions
4Every recent SEC Form 4 transaction de Sousa Roberval Tavares has reported, most recent first.
$SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale5.9K shares @ $5.74$34K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale
5.9K shares @ $28.81$170K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPF - Tax withholding / forfeiture
2.3K shares @ $6.69$15K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPM - Option exercise
8.2K shares @ --
Trading Pattern
InsiderAlpha's records for de Sousa Roberval Tavares go back to 2026: 3 primary Form 4 filings, an average of 3.0 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 de Sousa Roberval Tavares 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 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 de Sousa Roberval Tavares?
de Sousa Roberval Tavares is a corporate insider, tracked as Engineering Officer of COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has de Sousa Roberval Tavares submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has de Sousa Roberval Tavares been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($204K) across all tracked filings.
Where can I see all of de Sousa Roberval Tavares'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.
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