This was a sell on the news.Nothing to read into it except that it was used to most likely trigger stop losses and fill somebody elses pockets with shares.
Furthermore, sideway trading will be fixed in this stock until what was said today becomes a reality or unless there are news releases going forward that will maintain or prop up the SP to a certain level until Aristotle is roled out.
Moreover, what was said today generated a negative sentiment because there was no surprise of an unexpected news that could have impacted positively the SP. When you have news that resembles very much past news release there is nothing to impressed about.
What was said today was only to confirm what to expect going forward which is already baked into the SP.