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Schedule 13G/A

SBSP3 Schedule 13G/A filing by BlackRock

BlackRock reported beneficial ownership of 55.1M shares, representing 12% of CIA SANEAMENTO BASICO DE SP in this filing.

FiledApr 24, 2026
Ownership dateMar 31, 2026
Reported shares55.1M
Reported ownership12%
Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 53.5M
Shared voting power 55.1M
Sole dispositive power 55.1M
Shared dispositive power 55.1M
Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer
BlackRock
CIK
CIK0002012383
Accession
0002012383-26-001417
Form
Schedule 13G/A
Open SEC filing View SBSP3 ownership history
Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.

How to read a Schedule 13G → Does a 13G mean the shares were just bought? → Filing date vs. ownership date →