Weekly Report: what happened at Sirnaomics last week (0727-0731)?

Last week 02257 had an overall loss of -5.71%, the stock price moved from 4.20 to 3.96, last week's high was 4.20, the low was 3.73, and the cumulative volume was 320.56K.

● 02257 reached a 52-week down last week on 30 July, quoting 3.96.