You know, I recall that CODI ran up when they almost closed a deal to acquire another portfolio business. When that deal wasn't able to close, the stock traded off.
On possible explanation for the recent bump up is that CODI might be close to closing on another acquisition. We know they have the cash and are in the market. It's not beyond the realm of possibility.
Actually, I was thinking "insider" more broadly than a Form 4 insider ... I was thinking more like "Martha Stewart" insider activity, based on a pending announcement that us mere mortals aren't deemed important enough to be informed of.