Token dump following Binance listing raises insider trading suspicions

cointelegraph.com:

Insider trading has become a burning topic in the crypto ecosystem, especially in light of the recent conviction of an ex-Coinbase manager’s brother. The insider trading charges were believed to be the first involving cryptocurrency, and now another set of wallet addresses with transaction history linked to Binance listings has raised suspicion.

Conor Grogan, director of Coinbase, took to Twitter to flag the transaction activity of a few anonymous wallets over the past 18 months. The anonymous wallets allegedly bought multiple unlisted tokens minutes before their listing announcement on Binance and dumped them right after the announcement.

The first such instance came in the form of Rar tokens where one of these wallets bought $900,000 in Rari seconds before and dumped them minutes after listing.

It appears that there is a pattern of Binance front-running over 18+ monthsI found connected wallets that:-Bought $900k Rari seconds before and dumped minutes after listing-Bought ~78K ERN between June 17 and June 21 and sold right after listing announcement-Did same w/ TORN https://t.co/yAolrfeHkO pic.twitter.com/VRq3vzfcgd

Another wallet starting with 0x20 bought about 78,000 ERN between June 17 and 21 and sold right after the listing announcement. A similar token dump was observed with TORN token, where one of the mentioned wallets bought hundreds of thousands of these tokens and sold them right after their listing announcement.

A similar pattern was observed before the RAMP token listing on Binance, where one of these wallets starting with 0xaf bought $500,000 of RAMP over a few days, before sending the tokens to Binance minutes after the listing announcement. The owner made a $100,000 profit on the trade.

Another $100,000