A securities fraud class action lawsuit against Pentair plc (NYSE: PNR) has been expanded to include investors who purchased or acquired the company’s common stock between March 11, 2025, and July 14, 2026, replacing the earlier class period of April 28, 2026, to July 14, 2026. Hagens Berman Sobol Shapiro LLP urged investors with substantial losses to submit their information before the Oct. 2, 2026, lead plaintiff deadline. The complaint alleges that Pentair and certain top executives concealed severe channel destocking (distributor inventory reductions), particularly in the Pool segment, and used unsustainable channel-loading and sales practices to inflate short-term financial metrics. The allegations surfaced after Pentair pre-announced preliminary second-quarter 2026 results on July 14, 2026, showing expected sales of about $930 million versus prior forecasts of $1.14 billion. The company said Pool-channel inventory destocking reduced Pool sales by about $170 million and income by about $105 million, while cutting full-year 2026 sales guidance to a decline of approximately 4% to 7% from earlier expectations for growth of 2% to 4%. Pentair also announced the immediate departure of Chief Financial Officer Nicholas Brazis after four months in the role. Its stock fell 15%, or $11.35 per share, to close at $64.33 on July 15, 2026, amid unusually heavy trading volume. Hagens Berman partner Reed Kathrein said the firm was examining the timing of the disclosures, the CFO’s departure and the effect of channel destocking on Pentair’s financial health.