After his young daughter, Mira, was diagnosed with a type of rare brain tumor, tech CEO Siqi Chen turned to X with a heartfelt plea for donations to support a lab’s research into the condition. A Pump.Fun user created a memecoin named Mira, which soared to an $80 million market cap before falling as Chen revealed his plan for liquidating his supply and donating all proceeds to the lab. “Even if we don’t sell a single token more, we’re going to send [the lab] at least $1M,” Chen wrote in an update.