0001382101 2022-01-07 2022-01-07 false 0001382101 8-K 2022-01-07 SUTRO BIOPHARMA, INC. DE 001-38662 47-0926186 111 Oyster Point Blvd South San Francisco CA 94080 650 881-6500 Not Applicable false false false false Common Stock, $0.001 par value STRO NASDAQ false