Weekly Report: what happened at AMBR last week (0817-0821)?

Last week AMBR had an overall loss of -22.57%, the stock price moved from 1.26 to 0.9756, last week's high was 1.2899, the low was 0.83, and the cumulative volume was 398.44K.

● AMBR reached a 52-week down last week on 21 August, quoting 0.9756.