0001500217 2020-07-09 2020-07-09 false 0001500217 8-K 2020-07-09 American Assets Trust, Inc. MD 001-35030 27-3338708 11455 El Camino Real Suite 200 San Diego CA 92130 858 350-2600 false false false false Common Stock, par value $0.01 per share AAT NYSE false