STRO earnings: a negative outcome, -12.1%

On May 9, 2022, SUTRO BIOPHARMA, INC. reached its earnings. The result was a negative outcome, and the stock moved -12.1% in the window around the event. It had already run -32.4% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.