Shares of Adani Ports and Special Economic Zone will also turn ex-date on Thursday for the proposed buyback. The company plans to acquire up to 3.92 crore shares from equity shareholders as on June 21 (record date), at a price of ₹500 a share for an aggregate amount of ₹1,960 crore. For investors wishing to be eligible to participate in the buyback, Wednesday is the cut-off date to acquire shares of Adani Ports. The shares closed at ₹421.55 on the BSE on Tuesday.