LOS ANGELES — An unnamed buyer has purchased an eight-property industrial portfolio in Los Angeles for $38.4 million. The transaction includes two land parcels known as the Los Angeles Downtown Industrial District. The portfolio contains a total of 4.6 developable acres adjacent to the Fashion District, near the Arts, Flower and Produce districts. Quantum Associates represented the buyer. Mike Malick and Carol Song of Marcus & Millichap represented the seller.