that's my read... they're wrapping up some form of a deal and need time to finalize. maybe CATSA award had an impact on the deal and the timing of that announcement put them in a time crunch. Or, the issues the lender is having created some delays.
I don't think we'll hear something today. After hours today would be a time to announce bad news.
For good news, which I think it will be, I'd assume you'd want the market open and investors ready. I'm a bit surprised it would happen on a holiday week, unless it is truly a buy-out and trading is halted.
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