The record date for the buyback by Span Diagnostics has been fixed for August 21. The company plans to buy back up to 18.19 lakh shares at ₹65 a share on proportionate basis through the tender offer process. That means, only shareholders whose names are on the company’s books as on record date can participate in the buyback. Thus, Thursday will be the cut-off date for shareholders who wish to participate in the buyback process of the company.