DOSSIER · 13F Holders · Q1 2026Utilities · Water Supply
SBS

COMPANHIA DE SANEAMENTO BASI

288 institutions still hold COMPANHIA DE SANEAMENTO BASI as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 20441A102·Water Supply·288 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.5B
visible holders
Holders
288
filers reporting
Concentration
13.30%
Impax Asset Management Group plc #1
top holder share
AI Holders Summary · Q1 2026

288 institutions reported SBS in Q1 2026. Impax Asset Management Group plc leads at 13.3% 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
$206M6.7M1.43%Q1 2026
02
BlackRock, Inc.
CIK 0002012383
$173M29.9M0.00%Q2 2026
03
Amundi
CIK 0001330387
$160M5.2M0.04%Q1 2026
04
DEUTSCHE BANK AG\
CIK 0000948046
$111M19.2M0.03%Q2 2026
05
ROYAL LONDON ASSET MANAGEMENT LTD
CIK 0000863748
$81M2.7M0.17%Q1 2026
06
MANNING & NAPIER ADVISORS LLC
CIK 0000062039
$80M2.6M1.13%Q1 2026
07
LETKO, BROSSEAU & ASSOCIATES INC
CIK 0001297496
$72M2.3M1.15%Q1 2026
08
MACKENZIE FINANCIAL CORP
CIK 0000919859
$66M2.2M0.08%Q1 2026
09
WCM INVESTMENT MANAGEMENT, LLC
CIK 0001061186
$65M2.2M0.15%Q1 2026
10
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$63M2.1M0.01%Q1 2026
11
MORGAN STANLEY
CIK 0000895421
$57M1.9M0.00%Q1 2026
12
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$57M1.9M0.00%Q1 2026
13
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$53M1.7M0.08%Q1 2026
14
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$53M1.7M0.03%Q1 2026
15
NORTHERN TRUST CORP
CIK 0000073124· Index
$49M1.6M0.01%Q1 2026
16
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$48M1.6M0.01%Q1 2026
17
UBS Group AG
CIK 0001610520
$44M1.4M0.01%Q1 2026
18
DUFF & PHELPS INVESTMENT MANAGEMENT CO
CIK 0000765443
$37M6.4M0.35%Q2 2026
19
Perpetual Ltd
CIK 0001647273
$37M6.3M0.52%Q2 2026
20
ASSETMARK, INC
CIK 0001344551
$35M6.1M0.06%Q2 2026
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Insiders at COMPANHIA DE SANEAMENTO BASI
Szlak DanielTavares De Sousa RobervalTavares De Sousa Samanta I.S.