Ann: Key Terms Agreed for Mobile Sports Streaming with Indosat, page-144

Great research @Parcels
You are right, Indosat share price has taken a serious hammering since March with a lot of trading happening during the last couple of weeks (see chart). Not sure what the cause is but there were a few articles in the press recently regarding Indosat's two main competitors (Telekom and XL Axiata). Not sure what effect that had. The Indonesian stock market in general also had a few bad days but nothing that explain the huge slide of Indosat.
https://www.nasdaq.com/article/high-open-tipped-for-indonesia-stock-market-20180604-01339