Lumen falls after report AT&T is in talks to buy co's consumer fiber unit

Lumen Technologies' shares LUMN.N fall 12.2% to $4.27 in afternoon trading

AT&T T.N is in talks to buy LUMN's consumer fiber business in deal valuing unit in excess of $5.5 billion, Bloomberg reports

Terms of the deal, which are not yet finalized, could change or talks might still collapse, says Bloomberg report

LUMN CFO Chris Stansbury said at a conference earlier this month that co is not going to be a consolidator in the consumer fiber business, report says

Including session's moves, LUMN is down ~19.8% YTD