05:27 PM EDT, 07/01/2024 (MT Newswires) -- A disgruntled GameStop ( GME ) investor is suing meme stock influencer "Roaring Kitty" in a federal court alleging he profited by inflating market interest in GameStop ( GME ) shares through his social media posts and then unloaded the stock when it peaked.

According to a suit filed June 28 in US District Court for the Eastern District of New York, Mark Radev accused the defendant, Keith Gill, of an illegal pump-and-dump scheme with GameStop ( GME ) shares beginning May 13 and running through June 13.

In his suit, Radev alleges Gill "quietly purchased a large volume of GameStop ( GME ) call options on E*Trade at comparatively low prices" shortly before making his initial online posts. He later sold those call options at a significant profit, "belatedly revealing as much to investors" on June 13, while Radev and other investors suffered steep losses and damages, the plaintiff wrote in his suit.

Gill not only has been attracting attention from investors, but also at E*Trade and its parent company Morgan Stanley ( MS ) , who are considering to bar him from trading, Radev said, citing a June 3 article in the Wall Street Journal. The companies declined comment to MT Newswires on Monday.

Securities regulators in Gill's home state of Massachusetts also confirmed a probe into his actions, but told MT Newswires "there has been no public update on the investigation since then."

Gill could not be reached Monday through X or other social media.

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