According to data from Nansen, nonfungible token (NFT) whale Jeffrey Hwang — known colloquially as Machi Big Brother — dumped 1,010 tokens for 11,680 Ether (ETH) or $18.6 million, in the space of 48 hours.

In a Feb. 25 Twitter thread, Nansen’s simian psychometric enhancement technician, Andrew Thurman, highlighted the trading activity over the previous two days and noted that it’s “likely the largest NFT dump ever.”

The major selling event included 90Bored Ape Yacht Club(BAYC) NFTs, 191 Mutant Ape Yacht Club (MAYC) NFTs and 308 Otherdeed NFTs, to name a few.

However, Machi Big Brother promptly bought back 991 NFTs, with Thurman theorizing it could be a play to either book some profits while also conducting “one big wash trade to generate huge Blur airdrop profits” or a “pretty naked market manipulation. ”

Machi is reportedly one of the biggest receivers of the Blur (BLUR) token airdrop fromupstart NFT marketplaceBlur, which recentlyousted OpenSea from being the top-rankedNFT platform in trading volume.

On Feb. 14, the project started dishing out its first round of airdrops to the community, with the amount of airdropped tokens depending on the user’s level of platform engagement and Ethereum-based NFT trading activity.

On Feb. 17, blockchain analytics platform Arkham Intel indicated that Machi had received 1.8 million BLUR, cashing it out for $1.3 million.

As such, Machi could score some fresh BLUR tokens in the next round by ramping up NFT trading activity, while other whales may belookingto do the same.

Looking at the floor prices of top collections that Machi initially dumped, BAYC, MAYC and Otherdeed NFTs have seen their prices drop 7.77%, 9.2% and 8.16% in the past 24 hours,accordingto data from NFT Price Floor.

“One man’s quest for an airdrop is wrecking some markets,” Thurman noted in a subsequent post.

At the time of writing, BLUR’s price is $0.79, declining 17.7% in the past seven days, according to CoinGecko.

On Feb. 22, the Blur teamtweetedthat the project will soon airdrop $300 million of tokens in its second round.