GameStop's top investor during the wild Reddit-fueled trading frenzy has dumped nearly all of its stake GameStop's top investor during the wild Reddit-fueled trading frenzy has dumped nearly all of its stake Will DanielFeb 12, 2021, 01:16 IST A closed GameStop store.Evan Agostini/AP Fidelity Investments sold all but 87 shares of its GameStop holdings in January, according to SEC filings. Fidelity was once the largest shareholder in the video game retailers owning 13% of the company. The company wasn't the only institutional investor to cash in on the stock as the price surged. Senvest Management also racked up nearly $700 million in profits on the trade, the Wall Street Journal reported.