Tandem Diabetes Care drops after issuing voluntary device correction for certain insulin pumps

Shares of diabetes device maker Tandem Diabetes Care TNDM.O fall 24.3% to $10.9 premarket

TNDM says it issued a voluntary correction for certain insulin pumps, citing a speaker malfunction that could halt insulin delivery and disrupt communication with glucose monitoring devices

Co reports 700 confirmed adverse events and 59 injuries associated with the issue

No deaths had been linked to the problem with the t:slim X2 insulin pumps - TNDM

Up to last close, stock down 60.1% YTD