Hagens Berman Sobol Shapiro LLP said a securities fraud class action against Pentair plc has been widened to cover investors who bought shares from March 11, 2025, through July 14, 2026, extending the prior period that had begun on April 28, 2026. The complaint alleges Pentair and certain top executives made materially false or misleading statements and withheld adverse information about financial health, channel inventory and internal controls, including severe channel inventory destocking (distributors cutting stock levels) in its core Pool segment and distributor sales practices that temporarily inflated reported performance. The suit points to Pentair's July 14, 2026 after-hours preannouncement of preliminary second-quarter 2026 results, including expected sales of about $930 million versus prior forecasts of $1.14 billion, a roughly $170 million hit to Pool segment sales and about $105 million to income from channel inventory destocking, a cut to full-year 2026 sales guidance to down about 4% to 7% from prior guidance for 2% to 4% growth, and the immediate departure of Chief Financial Officer Nicholas Brazis after four months in the role. Pentair shares fell 15%, or $11.35, to $64.33 on unusually heavy volume on July 15, 2026, the release said. Investors seeking lead-plaintiff status have until Oct. 2, 2026, while people with non-public information are being urged to consider the SEC (U.S. markets regulator) Whistleblower program, which the release says can pay up to 30% of a successful SEC recovery.