Treehouse Foods Inc. THS, +2.26% and Post Holdings Inc. POST, +1.50% said late Monday that Treehouse’s deal to sell its ready-to-eat cereal business to Post has ended after a December complaint filed by the Federal Trade Commission opposing the deal. “After thoroughly evaluating our options and the potential outcomes, our board has determined that terminating the agreement with Post and immediately seeking another buyer for the business is the proper course forward,” said Treehouse Chief Executive Steve Oakland in a statement. “Unfortunately the business risk, necessary resources and extent of time required to challenge the FTC’s position was not in the best interest of our constituencies.” TreeHouse had bought its ready-to-eat cereal business from ConAgra Brands in 2016. TreeHouse announced the deal with Post in May for an undisclosed sum, saying that the transaction was expected to close in July.