https://www.reuters.com/article/us-osram-licht-m-a-ams/concern-and-hope-as-ams-and-osram-slide-following-failed-takeover-idUSKBN1WM0WM >Shares in sensors specialist AMS and lighting group Osram fell on Monday on concerns AMS might revisit its $4.9 billion takeover bid which collapsed on Friday.