No, you won't be able to tell. Roth acted as the underwriter for an offering of 5,750,000 shares last year in April (go to disclosures for April 2018 and read the 8K's). As underwriter, their job is to arrange for their customers/contacts/investment companies they know to buy the offering, so I'd doubt if they held the stock very long to begin with.
That being said, when they did the offering, they had to look over the company's business quite thoroughly, and the fact they're still willing to stick up for the company a year later would tell me it probably isn't a pump and dump. The guys who announced they've shorted the stock and have called it a pump and dump should be spanked, as that wreaks of manipulation.
Stock still may have been overpriced and may have earned some short positions, but you don't play that way.
