Daniel Szlak - 15 Jun 2026 Form 4/A - Amendment Insider Report for COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS)

Reporting relationship: Chief Financial Officer
Issuer ticker: SBS
Reported as of: 15 Jun 2026
Net transaction value: -$41,259
SEC form: 4/A - Amendment
Accepted by SEC: 17 Jun 2026, 16:19:37 UTC
Original report date: 16 Jun 2026
Prior SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Beatriz Caroline de Sousa Daher, as attorney-in-fact for Daniel Szlak

Key filing fact

Daniel Szlak filed Form 4/A - Amendment for COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS) on 17 Jun 2026.

Key facts

This page summarizes Daniel Szlak's Form 4/A - Amendment filing for COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP (SBS).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 17 Jun 2026, 16:19.

Change

Previous filing in this sequence was filed on 15 May 2026.
Current net transaction value: -$41,259.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002119932 Primary reporting owner

Szlak Daniel

Relationship: Chief Financial Officer
Address: 300 COSTA CARVALHO STREET, SAO PAULO, BRAZIL
Signature: /s/ Beatriz Caroline de Sousa Daher, as attorney-in-fact for Daniel Szlak
Signature date: 17 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SBS transaction

Common Shares

Sale

Transaction value: $40,807
Shares: -7,300
Change %: -99%
Price: $5.59
Shares after: 81
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F1

SBS transaction

Common Shares

Sale

Transaction value: $452
Shares: -81
Change %: -100%
Price: $5.58
Shares after: 0
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Equivalent to R$28.30 per share. Amounts presented were converted into U.S. dollars at the exchange rate of R$5.0611 per U.S.$1.00 as reported by Brazilian Central Bank on June 15, 2026.

Footnote F2

Equivalent to R$28.23 per share. Amounts presented were converted into U.S. dollars at the exchange rate of R$5.0611 per U.S.$1.00 as reported by Brazilian Central Bank on June 15, 2026.

SEC remarks

This Form 4/A amends the Form 4 filed on June 16, 2026 to: (i) correct the price per share reported in Table I; (ii) correct the amount of securities beneficially owned following the transaction reported in Line 1 of Table I; and (iii) correct the signature block to reflect the proper reporting person. Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act.