07:50 AM EST, 02/27/2025 (MT Newswires) -- 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.