DiamondRock Hospitality (DRH) shares were down 21% pre-bell Monday following a 3% increase in the previous session.
Olema Pharmaceuticals (OLMA) stock was 19% lower, reversing from Friday's advance.
Landsea Homes (LSEA) shares were down more than 18% after a 4% gain in the previous session.
Unusual Machines (UMAC) stock was 17% lower after the company said late Friday it plans to sell its common shares in a public offering.