Paul McAndrew, Chief Executive Officer of Mueller Water Products, Inc. ($MWA), sold 40,000 shares of company stock on August 10, 2026, in an open-market transaction valued at $1,055,572. The shares were sold at an average price of $26.39 each, according to a Form 4 filed with the Securities and Exchange Commission the same day. Following the sale, McAndrew held 42,556 shares, meaning the 40,000-share disposition represented roughly 48% of his total position heading into the trade.
The transaction is the only trade on file for McAndrew in the SEC's EDGAR system. He leads Mueller Water Products, an Atlanta-based manufacturer of valves, hydrants, and pipe repair products that operates in the machinery sector and serves water infrastructure markets across North America.
McAndrew's sale was the largest insider transaction at $MWA since late May 2026, when Chief Technology Officer Marietta Edmunds Zakas sold 54,254 shares for approximately $1.37 million. Vice President Todd P. Helms has been a recurring seller, reporting open-market dispositions in March 2026 ($295,952 at $27.61 per share) and February 2026 ($318,548 at $29.72 per share), as well as two sales in December 2025. Director Steven S. Heinrichs also reported two open-market sales in December 2025 totaling more than $814,000, along with additional sales in August 2025. Director Thomas J. Hansen sold roughly $627,719 worth of shares in August 2025, and Director Jeffery S. Sharritts reported a $198,822 sale that same month.
Insider buying at $MWA has also been recorded in recent months. Director Brian C. Healy has been a consistent purchaser, acquiring shares in January 2026 ($27,462), May 2026 ($30,019), and July 2026 ($29,965), as well as in October 2025 and July 2025. Director Gregg C. Sengstack purchased 25,000 shares for $739,415 on February 25, 2026, the largest insider purchase on record for the company.
On the congressional side, Representative Michael T. McCaul, a Republican from Texas, reported three purchases of $MWA stock in 2026: transactions on February 3, May 18, and May 29. Each carried an estimated midpoint value of $15,001. Congressional filings report transaction values in dollar ranges rather than exact amounts, so those figures are midpoint estimates derived from the disclosed brackets. McCaul has traded $MWA periodically since at least 2019, according to STOCK Act disclosures, with reports of both purchases and sales across that period.
Mueller Water Products shares closed at $26.65 on August 7, the most recent trading day before McAndrew's sale. The stock has traded between roughly $24 and $30 over the trailing twelve-month period, based on the prices recorded across insider transactions during that span. The Form 4 submission on August 10 — the same day as the trade — was well within the two-business-day reporting window required by SEC rules for open-market transactions by corporate officers.