This great news has been out since February. Stock price is down from that date. Almost 6 months for investors to show confidence in what has been reported. Obviously they are nowhere near your perception. You're reading press clippings, nothing more than that. Investors could have run this stock way up if there was something they liked. The news is out, has been. You've seen the reaction. Are you not in this for stock price appreciation? Of course when you continue to move your target date (and it wasn't just Matthews, it's been many, many events, relationships, products etc) to an endcless point, you'll always be a winner by waiting.
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