Ibotta (IBTA) shares slumped 41% pre-bell Thursday after the company reported lower Q4 adjusted profit and revenue late Wednesday.
Siyata Mobile (SYTA) shares fell 27%, reversing from Wednesday's rally.
Digimarc (DMRC) shares retreated 26%, a day after the company reported lower Q4 revenue.
TransAlta Corp. (TAC) shares dropped 25% after Wednesday's 1.1% gain.
Mayville Engineering (MEC) shares were down 24% following a muted session.