DOSSIER · 13F Holders · Q2 2026Utilities · Water Supply
SBS

COMPANHIA DE SANEAMENTO BASI

308 institutions still hold COMPANHIA DE SANEAMENTO BASI as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 20441A102·Water Supply·308 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.7B
visible holders
Holders
308
filers reporting
Concentration
18.25%
Impax Asset Management Group plc #1
top holder share
AI Holders Summary · Q2 2026

308 institutions reported SBS in Q2 2026. Impax Asset Management Group plc leads at 18.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Impax Asset Management Group plc
CIK 0001749768
$302M52.3M1.97%Q2 2026
02
BlackRock, Inc.
CIK 0002012383
$173M29.9M0.00%Q2 2026
03
Amundi
CIK 0001330387
$151M26.1M0.04%Q2 2026
04
ROYAL LONDON ASSET MANAGEMENT LTD
CIK 0000863748
$119M20.6M0.22%Q2 2026
05
DEUTSCHE BANK AG\
CIK 0000948046
$111M19.2M0.03%Q2 2026
06
WCM INVESTMENT MANAGEMENT, LLC
CIK 0001061186
$92M15.9M0.17%Q2 2026
07
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$71M12.3M0.01%Q2 2026
08
LETKO, BROSSEAU & ASSOCIATES INC
CIK 0001297496
$70M12.1M1.03%Q2 2026
09
UBS Group AG
CIK 0001610520
$70M12.0M0.01%Q2 2026
10
MACKENZIE FINANCIAL CORP
CIK 0000919859
$64M11.0M0.06%Q2 2026
11
MORGAN STANLEY
CIK 0000895421
$57M9.9M0.00%Q2 2026
12
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$54M9.4M0.00%Q2 2026
13
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$49M8.5M0.02%Q2 2026
14
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$45M7.9M0.01%Q2 2026
15
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$44M7.5M0.06%Q2 2026
16
NORTHERN TRUST CORP
CIK 0000073124· Index
$43M7.4M0.01%Q2 2026
17
DUFF & PHELPS INVESTMENT MANAGEMENT CO
CIK 0000765443
$37M6.4M0.35%Q2 2026
18
Perpetual Ltd
CIK 0001647273
$37M6.3M0.52%Q2 2026
19
ASSETMARK, INC
CIK 0001344551
$35M6.1M0.06%Q2 2026
20
STRS OHIO
CIK 0000820478
$33M5.7M0.12%Q2 2026
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Insiders at COMPANHIA DE SANEAMENTO BASI
Szlak DanielTavares De Sousa RobervalTavares De Sousa Samanta I.S.