LSI Industries (LYTS) shares were down 40% pre-bell Monday after Friday's 1.9% decline.
Sonida Senior Living (SNDA) stock was 38% lower, adding to losses from the previous session.
Johnson Outdoors (JOUT) shares were down 33% following a muted session.
CB Financial Services (CBFV) stock was 30% lower after Friday's 1.6% gain.
TriMas Corp. (TRS) shares were down 24% following a muted session.