BlackRock sold common shares of Companhia de Saneamento de Minas Gerais (Copasa, CSMG3) and, as of November 9, 2026, its aggregate stake came to 18,929,002 common shares, equivalent to approximately 4.978% of the total shares of that class in the company. As a result, the asset manager fell below the 5% threshold.
In addition to the shares, BlackRock holds 76,372 financial derivative instruments referenced to common shares, with cash settlement, which represent approximately 0.020% of Copasa's total common shares.
BlackRock stated that it acts on behalf of some of its clients, as an investment manager. According to the asset manager, the purpose of the holdings is strictly for investment, with no intention of changing the shareholding control or the administrative structure of Copasa. BlackRock also stated that it has not entered into contracts or agreements regulating the exercise of voting rights or the purchase and sale of securities issued by the company.
Is CSMG3 worth investing in?
- Price
- R$ 53.03
- as of 11/10/2026
- Dividend yield
- 3.76 %
- P/L
- 15.90
- P/VPA
- 2.22








