Mueller Industries Inc
A manufacturer of copper, brass, and aluminum parts for plumbing, heating, cooling, and construction — from copper tube and brass rod to refrigeration valves and flexible duct systems — Mueller sells to wholesalers and manufacturers worldwide. Its name reaches back to 1857, when German immigrant and inventor Hieronymus Mueller opened a gun shop in Decatur, Illinois, that grew into a plumbing business. In 1930 the company introduced the "Streamline" solder-type fitting, which made copper pipe joints stronger than the pipe itself.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.