Who all has owned the company over the past 50 years? and what years did they own it?

I don't have all the info, but can get you started, Don Aronow, then Harold Halter (Halter Marine), then back to Don Aronow, then Jerry Jacoby, then someone, then Craig Barrie, then another guy, then Skip Braver. This is only a partial story, Brownie will know it all and Tank is pretty knowledgeable as well.

Don’t forget before skip there was a private holding company with Jack Cabasso at the helm...

I actually don't know. When Don was still around it was easier to follow. But after he was murdered it changed hands a LOT and there was private investors and silent partners as well in a short time period. It was basically a mess before Skip bought it.

Thought I read somewhere that Hawk ( Hawk racing engines ) owned it at one point back in the day,

Hawk was Craig Barrie, who worked for Cigarette and was part owner or owner for a short time after Don's murder. Craigs wife Lynda was the first to run out to Don's car when he was shot. She worked in the office.