FBB4 Capital is founded by a prominent and enigmatic figure in the Ethereum memecoin and cryptocurrency trading community. He is widely recognized as an “ethical whale” and large-portfolio investor, known for making significant, conviction-driven purchases in select projects. FBB4, the individual, is a former equities trader who converted to Bitcoin in 2017.

In 2024, that conviction took on a very public — and very unconventional — form. At a New York City charity auction benefiting a children’s hospital, FBB4 paid an astonishing $250,000 for a broken Nintendo Switch and a pair of underwear once owned by GameStop’s CEO. The buyers, who chose to remain anonymous for security reasons, said the seemingly absurd items carried real symbolic weight for those who lived through the 2021 GameStop short-squeeze movement.