$PTEN News Article - BRODSKY & SMITH SHAREHOLDER UPDATE: Notifying Investors of the Following Investigations: NexTier Oilfield Solutions Inc. (NYSE - NEX), Chinook Therapeutics, Inc. (Nasdaq - KDNY), Franchise Group, Inc. (Nasdaq - FRG), Greenhill & Co., Inc. (NYSE - GHL)
https://marketwirenews.com/news-releases/brod...23539.html