A New York law firm has filed a putative class action against SmileDirectClub, accusing the company, some of its executives and shareholders as well as a number of investment banks of, among other things, making misleading statements and of not properly disclosing risks to the company’s business model.

Attorneys with Kirby McInerney last week said their complaint filed in U.S. District Court for the Southern District of New York aims to represent investors who bought into SmileDirect’s September initial public offering, which fell flat and saw the company’s stock (Ticker: SDC) fall from $23 to below $10 in about a month. (They have since rebounded a little to about $12 apiece.)