ST. LOUIS, Sept. 27, 2012 /PRNewswire/ -- Ralcorp Holdings, Inc. (NYSE: RAH) announced today that it is exploring the sale of approximately 6.8 million shares of the common stock of Post Holdings, Inc. (NYSE: POST), representing its entire remaining stake in Post. About Ralcorp Holdings, Inc. Ralcorp produces a variety of private-brand foods sold under the individual labels of various grocery, mass merchandise and drugstore retailers, and frozen bakery products sold to in-store bakeries, restaurants and other foodservice customers. Ralcorp's diversified product mix includes: ready-to-eat and hot cereals; nutritional and cereal bars; snack mixes, corn-based chips and extruded corn snack products; crackers and cookies; snack nuts; chocolate candy; salad dressings; mayonnaise; peanut butter; jams and jellies; syrups; sauces; frozen griddle products including pancakes, waffles, and French toast; frozen biscuits and other frozen pre-baked products such as breads and muffins; frozen and refrigerated doughs; dry pasta; and frozen ready meals. For more information about Ralcorp, visit the Company's website at www.ralcorp.com. Contact:Matt PudlowskiDirector, Business Development(314) 877-7091 SOURCE Ralcorp Holdings, Inc.