Garden Stage (GSIW) shares were 33% lower pre-bell Tuesday, paring previous session's rally.
BioNTech (BNTX) stock was down nearly 20% after the company reported it swung to a Q4 adjusted loss amid lower revenue.
SciSparc (SPRC) shares were down 20% in premarket activity following a muted session Monday.
Freightcar America (RAIL) stock was down 18%, a day after the company reported lower Q4 adjusted earnings and revenue.