Post Holdings, Inc. operates as a consumer packaged goods holding company. The firm engages in the operation of center-of-the-store, refrigerated, food service, food ingredient, active nutrition, and private brand food categories. It operates through the following segments: Post Consumer Brands, Weetabix, Foodservice, Refrigerated Retail and BellRing Brands. The Post Consumer Brands segment manufactures, markets, and sells branded and private label ready-to-eat (RTE) cereal and hot cereal products. The Weetabix segment focuses on the marketing and distribution of branded and private label RTE cereal products. The Foodservice segment includes egg and potato products. The Refrigerated Retail segment produces and/or distributes egg products, sausage, side dishes, cheese, and other refrigerated products to retail and foodservice customers. The BellRing Brands segment consists of ready-to-drink (RTD) protein shakes, other RTD beverages, powders, and nutrition bars. The company was founded by Charles William Post in 1895 and is headquartered in St. Louis, MO.