Ultrapar (UGPA3) shares closed 2.65% lower at BRL 30.11 on Tuesday, pressured by the execution of a BRL 1.3 billion block trade.
The transaction saw Canadian pension fund CPPIB sell its entire stake in the Brazilian conglomerate, effectively zeroing out its position in the company.
The sale represents a substantial liquidity event for the fund and introduces immediate supply-side pressure on the stock.
While block trades are often executed at negotiated prices that may differ from the closing market price, the sheer volume of the transaction contributed to the downward move in the session.
The exit of a major institutional holder can signal a shift in sentiment among long-term investors, prompting other market participants to reassess their exposure.
This move follows a pattern of large-scale divestments by foreign institutional investors in emerging market equities.