Garth is best friends with Wayne, the CEO of Great Pharma, Incorporated (GPI), a publicly traded corporation. GPI had just made an important discovery: the cure for cancer. The information has been kept secret by GPI. Before the news was made public in a press conference, Wayne told Garth about it on May 1 and that day Garth bought 10,000 shares of GPI stock. The press conference was on May 2 and after the announcement, GPI stock went up $50 a share. Garth immediately sold his stock and made $500,000. Garth is known in the law of insider trading as a/an