AT&T将收购Lumen的Mass Markets Fiber业务，交易规模57.5亿美元。流明科技（LUMN）美股盘后涨19.42%。

Group 1 - AT&T is set to acquire Lumen's Mass Markets Fiber business for a transaction value of $5.75 billion [1] - Following the announcement, Lumen's stock price increased by 19.42% in after-hours trading [1]