Summary
Updated Aug 31, 2026
Daniel Szlak is Chief Financial 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 $452 of SBS on 17 June 2026. Lifetime open-market sales: $250K.
Recent Transactions
6Every recent SEC Form 4 transaction Daniel Szlak has reported, most recent first.
$SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale81 shares @ $5.58$452
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale
7.3K shares @ $5.59$41K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale
81 shares @ $28.30$2K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPS - Open-market sale
7.3K shares @ $28.30$207K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPF - Tax withholding / forfeiture
2.8K shares @ $6.69$19K
- $SBS COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESPM - Option exercise
10.2K shares @ --
Trading Pattern
InsiderAlpha's records for Daniel Szlak 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 Daniel Szlak 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.
- 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 Daniel Szlak?
Daniel Szlak is a corporate insider, tracked as Chief Financial 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 Daniel Szlak submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Daniel Szlak been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($250K) across all tracked filings.
Where can I see all of Daniel Szlak'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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