Cereal maker Post Holdings has announced that it is aiming to complete the purchase of rival Mom Brands as part of its strategy to expand and strengthen its position in the cereal market, according to a report from Reuters. The transaction will reportedly consist of a payment of $1.05 billion in cash together with a transfer of 2.5 million shares. Mom Brands, whose portfolio includes Malt-O-Meal, Frosted Mini Spooners, Golden …