Companhia de Saneamento Ownership | Who Owns Companhia de Saneamento?

Companhia de Saneamento Ownership Summary

Companhia de Saneamento is owned by 7.23% institutional investors, 15.00% insiders, and 77.77% retail investors. Impax asset management group is the largest institutional shareholder, holding 0.99% of SBS shares. Impax Water Strategy Composite is the top mutual fund, with 0.59% of its assets in Companhia de Saneamento shares.

SBS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Companhia de Saneamento	7.23%	15.00%	77.77%
Sector	Utilities Stocks	43.45%	7.96%	48.59%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Impax asset management group	6.74M	0.99%	$205.71M
Blackrock funding, inc. /de	6.09M	0.89%	$185.89M
Amundi	5.46M	0.80%	$134.66M
Deutsche bank ag\	3.70M	0.54%	$112.99M
Royal london asset management	2.66M	0.39%	$81.05M
Manning & napier advisors	2.63M	0.38%	$80.12M
Letko, brosseau & associates	2.35M	0.34%	$71.65M
Blackrock	2.26M	0.33%	$30.42M
Wcm investment management	2.20M	0.32%	$64.72M
Mackenzie financial	2.17M	0.32%	$66.13M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ativo capital management	65.49K	1.74%	$2.00M
Impax asset management group	6.74M	1.43%	$205.71M
Point nemo capital	61.79K	1.24%	$1.89M
Letko, brosseau & associates	2.35M	1.15%	$71.65M
Manning & napier advisors	2.63M	1.13%	$80.12M
Kapitalo investimentos ltda	168.40K	0.97%	$5.14M
Lifestyle asset management	78.91K	0.79%	$2.41M
Perpetual	1.26M	0.59%	$38.57M
Duff & phelps investment management	1.45M	0.46%	$44.15M
Spx gestao de recursos ltda	177.95K	0.45%	$5.43M

Top Buyers

Holder	Shares	% Assets	Change
Royal london asset management	2.66M	0.17%	2.66M
Wcm investment management	2.20M	0.15%	1.76M
Goldman sachs group	893.21K	0.00%	642.30K
Ubs group	1.43M	0.01%	465.95K
Capital wealth planning	713.86K	0.12%	445.27K

Top Sellers

Holder	Shares	% Assets	Change
Robeco institutional asset management b.v.	89.36K	0.00%	-960.86K
Bank of america corp /de/	507.14K	0.00%	-878.93K
Verde servicos internacionais	-	-	-667.20K
Quilter	-	-	-629.15K
Barclays	58.45K	0.00%	-592.67K

New Positions

Holder	Shares	% Assets	Change	Value
Royal london asset management	2.66M	0.17%	2.66M	$81.05M
Gradient investments	188.25K	0.09%	188.25K	$5.74M
Vanguard fiduciary trust	174.54K	0.00%	174.54K	$5.33M
Man group	174.24K	0.01%	174.24K	$5.32M
Btg pactual asset management us	159.20K	0.42%	159.20K	$4.86M

Sold Out

Holder	Change
Gps wealth strategies group	-1.00
Financial gravity asset management	-3.00
Newedge advisors	-14.00
Cherry tree wealth management	-21.00
Winch advisory services	-28.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	162	-28.00%	49,472,599	-27.51%	7	7.25%	111	-30.63%	45	-19.64%
Dec 31, 2025	172	-20.74%	50,609,561	-22.34%	7	8.15%	123	5.13%	40	-45.21%
Sep 30, 2025	210	5.53%	64,315,176	-5.56%	9	9.48%	113	-3.42%	71	42.00%
Jun 30, 2025	198	1.54%	68,068,892	-0.73%	9	9.90%	116	20.83%	50	-19.35%
Mar 31, 2025	6	-96.74%	449,221	-99.35%	-	0.06%	3	-96.84%	1	-98.33%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Impax Water Strategy Composite	4.12M	0.59%	12.16K
BNP Paribas Climate Impact Privl C	2.48M	0.36%	-442.67K
BNP Paribas Aqua C C	2.09M	0.29%	40.74K
BNP Paribas Aqua I	2.05M	0.29%	-11.69K
LetkoBrosseau Emerging Markets	2.01M	0.28%	-63.29K
DWS Invest Global Infras FC	1.66M	0.24%	-316.55K
Mackenzie Grnchp Glbl Envr All Cap F5	1.58M	0.22%	-
Amundi - KBI Aqua ISR C	1.50M	0.22%	-
Duff & Phelps Water Composite	1.45M	0.21%	2.33K
Impax Specialists Strategy Composite	1.41M	0.20%	-43.12K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 25, 2026	Tavares de Sousa Roberval	Engineering Officer	Sell	$33.87K
May 21, 2026	Tavares de Sousa Samanta I.S.	Inst. Rel. & Sustain. Officer	Sell	$32.60K
Jun 15, 2026	Szlak Daniel	Chief Financial Officer	Sell	$40.81K
Jun 15, 2026	Szlak Daniel	Chief Financial Officer	Sell	$451.98
Jun 15, 2026	Szlak Daniel	Chief Financial Officer	Sell	$2.29K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	7

SBS Ownership FAQ

Who owns the most shares of Companhia de Saneamento?

Companhia de Saneamento’s largest shareholders are Impax asset management group (6.74M shares, 0.99%), Blackrock funding, inc. /de (6.09M shares, 0.89%), and Amundi (5.46M shares, 0.80%). Together, they hold 2.68% of Companhia de Saneamento’s total shares outstanding.

Does Blackrock own Companhia de Saneamento?

Yes, BlackRock owns 0.33% of Companhia de Saneamento, totaling 2.26M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 30.42M$. In the last quarter, BlackRock decreased its holdings by -28.898K shares, a -1.26% change.

Who is Companhia de Saneamento’s biggest shareholder by percentage of total assets invested?

Ativo capital management is Companhia de Saneamento’s biggest shareholder by percentage of total assets invested, with 1.74% of its assets in 65.49K Companhia de Saneamento shares, valued at 2M$.

Who is the top mutual fund holder of Companhia de Saneamento shares?

Impax Water Strategy Composite is the top mutual fund holder of Companhia de Saneamento shares, with 0.59% of its total shares outstanding invested in 4.12M Companhia de Saneamento shares.

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