K: I'm leaning against it because of:
"REDUCE-IT outcomes study top line results expected before the end of September 2018"
I don't think the actual results would be released on a weekend. The heads up to the actual announcement / CC, possibly on a weekend, but not the actual topline release. And the next business day after the next weekend is already October, which contradicts the above quote.
FS: I would think that most serious investors have joined Amarin's email list, so they would get notified of any PR via email, immediately upon release. I assume that almost everyone has a smart phone with emails.