Why did Atossa Therapeutics Inc. (ATOS) underperform on Thursday?

SWAV stock

Atossa Therapeutics Inc. (ATOS) shares fell 5.38% in after-hours on Thursday, July 29, 2021, and closed the daily trading at $3.69 per share. Earlier in the regular trading on Thursday, ATOS’s stock lost 1.27%. ATOS shares have fallen 10.34% over the last 12 months, and they have moved down by 5.11% in the past week. […]