Unfortunately you need to do some DD. You can't open a class action on performance. These are stocks, which are purchased with the carried risk of poor performance and capital losses. Unless you have a Financial Advisor, you have no valid claims because the claim of lack of performance would be against the Advisor and firm based on recommendations. Note: any large broker dealer have strict rules on Advisors NOT soliciting penny stocks or even buying them unless it's is worth less than 10% of your total investable assets and you carry $500k. Furthermore, their trading platforms restrict purchases prior to execution and require principal approval.
Please come back with facts, not opinions related to legal impacts to shareholders