Piper upgrades Sutro Biopharma to Overweight on attractive valuation

Piper Sandler last night upgraded Sutro Biopharma (STRO) to Overweight from Neutral with an unchanged price target of $2. The company plans to file three new drug applications on next-generation antibody-drug conjugates over the next three years, the analyst tells investors in a research note. The firm says Sutro ended Q1 with cash of $249M to fund operations into 2027 and currently trades at a negative $181M enterprise value. Piper sees an attractive valuation at current share levels.