It was one of the largest med-tech deals of the year. However, Qiagen NV shareholders were apparently not satisfied by Thermo Fisher Scientific Inc.’s offer, with the voluntary public takeover bid not achieving the minimum 66.67% acceptance threshold. A total of 47% of the outstanding Qiagen shares were tendered into the offer of €43 (US$50.95) at the expiration of the acceptance period Aug. 10.