Estimated market cap $17.23BShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of May 7, 2026, last close Nov 13, 2026.3.50B ADSs, shares as of May 7, 2026CIK 1170858The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
0 buys · 4 sells
$107.7K sold, open market
Congress trades, 24 mo
—
No disclosed trades
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
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Latest 10-Q
What changed in Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp's latest quarterly report, compared with the one before.
We have not read a recent 10-Q for this company yet.
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
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13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
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Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
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Lobbying
What Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
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Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Congress purchase Congress sale Insider sale over $1M
Adjusted for stock splits; not for dividends. The stock split 5-for-1 on May 7, 2026; 1.002-for-1 on Mar 27, 2026; 1.03-for-1 on Dec 29, 2025; earlier prices are shown divided by the split ratio. Where prices come from.
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Intraday and historical prices from TradingView. Quotes may be delayed.
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13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
202
7.7% of shares · 71 added
Insider trades
4 in 12 mo
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No open-market insider trades reported since Jun 15, 2026. Insiders have two business days to file.
Recent insider trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
202 funds report SBS. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 11% of the company, counted in US-listed ADS (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 375.27M reported ADSs by 3.50B ADSs, from a count we checked by hand as of May 7, 2026. An ADS stands for a fixed number of the company’s ordinary shares, so the company’s shares are converted to ADSs. 13F covers only ADSs listed in the US. Shares held at home and by funds abroad are not in it, so this figure is lower than global institutional ownership figures.
296 funds hold the stock.
Q3 2026: 7.7% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q1 202510%
Q2 202510%
Q4 20259.8%
Q2 202611%
Q3 2026 (so far)7.7%
Q3 2026. 24 new, 71 added to, 76 trimmed, 119 exited since Q2 2026.
Download CSVEvery fund that holds SBS, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
No recent congressional trades for this company.
Lobbying
What Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report, adjusted for splits
Funds holding the stock by quarter
Q2 2013
188
—
608.73M
$1.2B
Q3 2013
163
-25
656.32M
$1.3B
Q4 2013
161
-2
665.65M
$1.5B
Q1 2014
180
+19
707.39M
$1.3B
Q2 2014
164
-16
744.34M
$1.5B
Q3 2014
158
-6
716.75M
$1.1B
Q4 2014
176
+18
724.16M
$884.5M
Q1 2015
169
-7
748.47M
$785.5M
Q2 2015
169
0
726.21M
$730.6M
Q3 2015
155
-14
703.78M
$529.4M
Q4 2015
150
-5
642.29M
$573.3M
Q1 2016
158
+8
591.14M
$755.6M
Q2 2016
182
+24
571.48M
$993.0M
Q3 2016
187
+5
507.14M
$910.4M
Q4 2016
192
+5
529.86M
$891.9M
Q1 2017
186
-6
532.23M
$1.1B
Q2 2017
174
-12
563.49M
$1.0B
Q3 2017
156
-18
569.91M
$1.2B
Q4 2017
181
+25
594.00M
$1.2B
Q1 2018
185
+4
583.64M
$1.2B
Q2 2018
173
-12
540.26M
$626.7M
Q3 2018
169
-4
611.60M
$696.7M
Q4 2018
172
+3
578.87M
$905.5M
Q1 2019
178
+6
482.52M
$989.4M
Q2 2019
177
-1
509.24M
$1.2B
Q3 2019
177
0
472.95M
$1.1B
Q4 2019
186
+9
443.75M
$1.3B
Q1 2020
149
-37
415.53M
$595.6M
Q2 2020
156
+7
428.52M
$871.3M
Q3 2020
151
-5
363.18M
$584.4M
Q4 2020
152
+1
376.16M
$625.6M
Q1 2021
156
+4
451.68M
$640.8M
Q2 2021
144
-12
465.87M
$667.9M
Q3 2021
129
-15
467.94M
$642.6M
Q4 2021
144
+15
473.16M
$670.9M
Q1 2022
138
-6
340.66M
$647.9M
Q2 2022
135
-3
436.75M
$675.3M
Q3 2022
140
+5
444.28M
$788.2M
Q4 2022
142
+2
374.08M
$773.2M
Q1 2023
136
-6
387.48M
$1.7B
Q2 2023
138
+2
394.52M
$1.8B
Q3 2023
146
+8
407.99M
$1.9B
Q4 2023
159
+13
405.98M
$1.2B
Q1 2024
161
+2
409.64M
$1.3B
Q2 2024
169
+8
321.52M
$839.5M
Q3 2024
187
+18
352.47M
$1.1B
Q4 2024
185
-2
398.21M
$1.1B
Q1 2025
195
+10
354.02M
$1.2B
Q2 2025
202
+7
351.59M
$1.5B
Q3 2025
217
+15
336.48M
$1.6B
Q4 2025
225
+8
343.13M
$1.6B
Q1 2026
246
+21
358.59M
$2.2B
Q2 2026
297
+51
375.28M
$2.2B
Q3 2026
202
-95
269.87M
$1.4B
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (20441A102). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits (1.03-for-1 on Dec 29, 2025, 1-for-1 on Mar 27, 2026, 5-for-1 on May 7, 2026): reports from before a split are multiplied by its ratio, so every quarter is on the share count of Q3 2026.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.