A pair of outparcels to a Cabela’s-anchored retail center in Thornton sold for $3.87 million. The Wendy’s and Arby’s at The Grove development sold in separate transactions to SSIC Inc. for $2.2 million and $1.67 million, respectively. The 3,500-square-foot Wendy’s, located at 150 E. 144th Ave., was built in 2015. It sold at a 4.75%…