The Royal Dutch Shell is one of the world's largest mineral oil and natural gas companies. The group is active in more than 140 countries. Shell employs around 83,000 people worldwide.
A Failure to deliver also known as fails-to-deliver or FTD occurs when a buyer or seller is unable to meet his trading obligations. FTDs for US listed companies are reported to the SEC and published twice a month. Therefore there is a certain delay between the reporting and the publishing of the data.
Number of shares, 3 months chart