First of all, you can click on the main position in the stock information to display the number of shareholders and the number of shares held according to the quarterly, semi-annual and annual reports.

Second, you click on the K-line chart of the stock you want to see and find the chips in the lower right corner. Clicking on the right side of the chip will turn into a red, blue and long short line. Move the cursor to the day you want to see and then move back, and then see the increase or decrease of chips on the right.