SBSNYSEWater SupplyFiscal year ends December 31
COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP
Financials through fiscal 2024, year ended Dec 31, 2024Last filing: 20-F on Apr 29, 2026
$6.30+0.04 (+0.64%)
Close on Oct 19, 2026
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
53.6%
375M of 700M shares
Institutional holders
296
81 new, 26 sold out
Net institutional buying
304M
In Q2 2026
Insider trades, 12 months
0 buys · 8 sales
Net sold $649.67K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 55,121,116 | 7.80% | 13G (passive) amendment | Mar 31, 2026 |
| State of São Paulo | 123,036,664 | 18.00% | 13D (active) | Jul 18, 2024 |
| Equatorial Participações e Investimentos IV S.A. | 102,526,480 | 15.00% | 13D (active) | Jul 22, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SBS | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Impax Asset Management Group plc | 52,324,409 | 7.47% | $302.44M | +45,582,049 | 1.97% |
| BlackRock, Inc. | 29,944,581 | 4.28% | $173.08M | +23,851,957 | 0.00% |
| Amundi | 26,095,862 | 3.73% | $150.93M | +20,847,422 | 0.04% |
| Royal London Asset Management Ltd | 20,552,459 | 2.94% | $118.79M | +17,895,927 | 0.22% |
| Deutsche Bank AG\ | 19,192,518 | 2.74% | $110.93M | +15,489,173 | 0.03% |
| Wcm Investment Management, LLC | 15,916,320 | 2.27% | $92.47M | +13,717,333 | 0.17% |
| Wellington Management Group Llp | 12,283,156 | 1.75% | $71.00M | +10,224,377 | 0.01% |
| Letko, Brosseau & Associates Inc | 12,114,373 | 1.73% | $70.02M | +9,765,804 | 1.03% |
| UBS Group AG | 12,048,286 | 1.72% | $69.64M | +10,614,237 | 0.01% |
| Mackenzie Financial Corp | 11,033,555 | 1.58% | $63.77M | +8,866,226 | 0.06% |
| Morgan Stanley | 9,856,486 | 1.41% | $56.97M | +7,977,024 | 0.00% |
| Vanguard Capital Management LLC | 9,388,520 | 1.34% | $54.27M | +7,510,816 | 0.00% |
| American Century Companies Inc | 8,521,961 | 1.22% | $49.26M | +6,795,375 | 0.02% |
| UBS Asset Management Americas Inc | 7,855,000 | 1.12% | $45.40M | +6,273,638 | 0.01% |
| Renaissance Technologies LLC | 7,547,490 | 1.08% | $43.62M | +5,816,792 | 0.06% |
| Northern Trust Corp | 7,390,131 | 1.06% | $42.71M | +5,784,495 | 0.00% |
| Duff & Phelps Investment Management Co | 6,400,937 | 0.91% | $37.00M | +4,953,752 | 0.35% |
| Perpetual Ltd | 6,323,632 | 0.90% | $36.55M | +5,059,322 | 0.52% |
| Assetmark, Inc | 6,072,960 | 0.87% | $35.10M | +4,981,091 | 0.06% |
| Strs Ohio | 5,711,948 | 0.82% | $33.02M | +4,481,567 | 0.12% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 296 | 375M | 53.6% | 81 / 204 | 9 / 26 | 306M | 2M |
| Q1 2026 | 246 | 72M | 10.2% | 45 / 124 | 70 / 22 | 12M | 7M |
| Q4 2025 | 225 | 69M | 9.8% | 42 / 117 | 57 / 24 | 12M | 8M |
| Q3 2025 | 216 | 65M | 9.3% | 42 / 75 | 74 / 22 | 7M | 10M |
| Q2 2025 | 200 | 68M | 9.7% | 33 / 86 | 50 / 26 | 7M | 7M |
| Q1 2025 | 195 | 69M | 9.8% | 38 / 61 | 61 / 24 | 8M | 17M |
| Q4 2024 | 185 | 77M | 11.0% | 28 / 68 | 62 / 27 | 14M | 5M |
| Q3 2024 | 187 | 68M | 9.8% | 39 / 86 | 29 / 20 | 14M | 5M |
| Q2 2024 | 169 | 62M | 8.9% | 25 / 60 | 53 / 15 | 6M | 23M |
| Q1 2024 | 161 | 79M | 11.3% | 24 / 45 | 58 / 21 | 9M | 8M |
| Q4 2023 | 159 | 79M | 11.2% | 28 / 51 | 61 / 15 | 13M | 13M |
| Q3 2023 | 146 | 79M | 11.3% | 19 / 48 | 46 / 10 | 9M | 6M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of SBS | Value | % of fund | As of |
|---|---|---|---|---|---|
| First Trust WCM International Equity ETF | 7,947,255 | 1.13% | $45.94M | 2.80% | Jun 30, 2026 |
| iShares Global Infrastructure ETF | 6,833,607 | 0.98% | $39.50M | 0.37% | Jun 30, 2026 |
| Virtus Duff & Phelps Water Fund | 6,399,698 | 0.91% | $36.99M | 7.34% | Jun 30, 2026 |
| Vanguard Emerging Markets Stock Index Fund | 5,786,660 | 0.83% | $31.54M | 0.02% | Jul 31, 2026 |
| Impax Global Environmental Markets Fund | 5,509,582 | 0.79% | $31.85M | 1.81% | Jun 30, 2026 |
| Avantis Emerging Markets Equity ETF | 5,092,935 | 0.73% | $28.11M | 0.11% | May 31, 2026 |
| First Trust Water ETF | 4,011,433 | 0.57% | $23.19M | 1.25% | Jun 30, 2026 |
| Vanguard Total International Stock Index Fund | 3,601,860 | 0.51% | $19.63M | 0.00% | Jul 31, 2026 |
| Invesco Water Resources ETF | 3,301,671 | 0.47% | $17.99M | 0.90% | Jul 31, 2026 |
| Amplify CWP International Enhanced Dividend Income ETF | 2,847,178 | 0.41% | $16.46M | 1.28% | Jun 30, 2026 |
| DWS RREEF Real Assets Fund | 2,424,190 | 0.35% | $14.01M | 0.30% | Jun 30, 2026 |
| Emerging Markets Fund | 2,168,535 | 0.31% | $11.97M | 0.59% | May 31, 2026 |
| JNL Multi-Manager International Equity Fund | 1,907,470 | 0.27% | $11.03M | 0.76% | Jun 30, 2026 |
| Calvert Global Water Fund | 1,588,965 | 0.23% | $9.18M | 1.63% | Jun 30, 2026 |
| DWS RREEF Global Infrastructure Fund | 1,262,740 | 0.18% | $7.30M | 0.93% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| de Sousa Roberval Tavares | Engineering Officer | 76 | 0.00% | Jun 17, 2026 |
| Daniel Szlak | Chief Financial Officer | 0 | – | Jun 17, 2026 |
| de Sousa Samanta I.S. Tavares | Inst. Rel. & Sustain. Officer | 43 | 0.00% | Jun 17, 2026 |
| Longo Debora Pierini | Operations & Maint. Officer | 8,243 | 0.00% | May 15, 2026 |
| Junior Josue Bressane | Chief People Officer | 5,344 | 0.00% | May 15, 2026 |
| Maia Denis Maciel | Customer & Technology Officer | 10,181 | 0.00% | May 15, 2026 |
| Strauch Rafael Costa | New Bus. & Projects Officer | 7,922 | 0.00% | May 15, 2026 |
| Valle Fehlberg Gustavo Do | Corporate Services Officer | 5,344 | 0.00% | May 15, 2026 |
| Domingues Luciane Godinho | Reg. & Energy Proc. Officer | 10,317 | 0.00% | May 15, 2026 |
| Peralta Maria Alicia Lima | Chief Legal Officer | 4,378 | 0.00% | May 15, 2026 |
| Piani Carlos Augusto Leone | CEO | 79,111 | 0.01% | May 15, 2026 |
| Amado Tinn Freire | Director | – | – | Mar 19, 2026 |
| Gattass Gustavo Rocha | Director | – | – | Mar 19, 2026 |
| da Cunha Claudia Polto | Director | – | – | Mar 19, 2026 |
| Trindade Karla Bertocco | Director | – | – | Mar 19, 2026 |
| Bandeira Mateus Affonso | Director | – | – | Mar 19, 2026 |
| Menezes Eduardo Parente | Director | – | – | Mar 19, 2026 |
| Silva Alexandre Goncalves | Director | – | – | Mar 19, 2026 |
| de Oliveira Anderson Marcio | Director | – | – | Mar 19, 2026 |
| da Paz Junior Augusto Miranda | Director | 2,877 | 0.00% | Mar 19, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Daniel Szlak Chief Financial Officer | Jun 15, 2026 | Sale | −81 | $5.58 | $452 | 0 |
| Daniel Szlak Chief Financial Officer | Jun 15, 2026 | Sale | −7,300 | $5.59 | $40.81K | 81 |
| Daniel Szlak Chief Financial Officer | Jun 15, 2026 | Sale | −81 | $28.30 | $2.29K | 0 |
| Daniel Szlak Chief Financial Officer | Jun 15, 2026 | Sale | −7,300 | $28.30 | $206.59K | 0 |
| de Sousa Roberval Tavares Engineering Officer | May 25, 2026 | Sale | −5,900 | $5.74 | $33.87K | 76 |
| de Sousa Roberval Tavares Engineering Officer | May 25, 2026 | Sale | −5,900 | $28.81 | $169.98K | 76 |
| de Sousa Samanta I.S. Tavares Inst. Rel. & Sustain. Officer | May 21, 2026 | Sale | −5,700 | $5.72 | $32.60K | 43 |
| de Sousa Samanta I.S. Tavares Inst. Rel. & Sustain. Officer | May 21, 2026 | Sale | −5,700 | $28.61 | $163.08K | 43 |
| Maia Denis Maciel Customer & Technology Officer | May 1, 2026 | Option exercise | +10,181 | – | – | 10,181 |
| Maia Denis Maciel Customer & Technology Officer | May 1, 2026 | Tax withholding | −2,800 | $6.69 | $18.73K | 7,381 |
| Strauch Rafael Costa New Bus. & Projects Officer | May 1, 2026 | Option exercise | +7,922 | – | – | 7,922 |
| Strauch Rafael Costa New Bus. & Projects Officer | May 1, 2026 | Tax withholding | −2,179 | $6.69 | $14.58K | 5,743 |
| de Sousa Roberval Tavares Engineering Officer | May 1, 2026 | Tax withholding | −2,267 | $6.69 | $15.17K | 5,976 |
| de Sousa Roberval Tavares Engineering Officer | May 1, 2026 | Option exercise | +8,243 | – | – | 8,243 |
| Peralta Maria Alicia Lima Chief Legal Officer | May 1, 2026 | Tax withholding | −1,661 | $6.69 | $11.11K | 4,378 |
| Peralta Maria Alicia Lima Chief Legal Officer | May 1, 2026 | Option exercise | +6,039 | – | – | 6,039 |
| Domingues Luciane Godinho Reg. & Energy Proc. Officer | May 1, 2026 | Option exercise | +10,317 | – | – | 10,317 |
| Domingues Luciane Godinho Reg. & Energy Proc. Officer | May 1, 2026 | Tax withholding | −2,837 | $6.69 | $18.98K | 7,480 |
| Longo Debora Pierini Operations & Maint. Officer | May 1, 2026 | Option exercise | +8,243 | – | – | 8,243 |
| Longo Debora Pierini Operations & Maint. Officer | May 1, 2026 | Tax withholding | −2,267 | $6.69 | $15.17K | 5,976 |
| Piani Carlos Augusto Leone CEO | May 1, 2026 | Option exercise | +50,295 | – | – | 64,703 |
| Piani Carlos Augusto Leone CEO | May 1, 2026 | Tax withholding | −13,831 | $6.69 | $92.53K | 36,464 |
| Daniel Szlak Chief Financial Officer | May 1, 2026 | Tax withholding | −2,800 | $6.69 | $18.73K | 7,381 |
| Daniel Szlak Chief Financial Officer | May 1, 2026 | Option exercise | +10,181 | – | – | 10,181 |
| Junior Josue Bressane Chief People Officer | May 1, 2026 | Tax withholding | −2,027 | $6.69 | $13.56K | 5,344 |
| Junior Josue Bressane Chief People Officer | May 1, 2026 | Option exercise | +7,371 | – | – | 7,371 |
| Valle Fehlberg Gustavo Do Corporate Services Officer | May 1, 2026 | Tax withholding | −2,027 | $6.69 | $13.56K | 5,344 |
| Valle Fehlberg Gustavo Do Corporate Services Officer | May 1, 2026 | Option exercise | +7,371 | – | – | 7,371 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.